gcc/libjava/include/posix-threads.h

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// -*- c++ -*-
// posix-threads.h - Defines for using POSIX threads.
/* Copyright (C) 1998, 1999, 2001, 2003, 2006 Free Software Foundation
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This file is part of libgcj.
This software is copyrighted work licensed under the terms of the
Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
details. */
#ifndef __JV_POSIX_THREADS__
#define __JV_POSIX_THREADS__
// NOTE: This file may only reference those pthread functions which
// are known not to be overridden by the Boehm GC. If in doubt, scan
// boehm-gc/gc.h. This is yucky but lets us avoid including gc.h
// everywhere (which would be truly yucky).
#include <pthread.h>
#include <sched.h>
#include <sysdep/locks.h>
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//
// Typedefs.
//
Makefile.in: New #defines and friends for Thread.h. * Makefile.in: New #defines and friends for Thread.h. * posix-threads.cc: (struct starter): Remove `object'. (_Jv_CondWait): Use interruptable condition variables and new recursive mutexes. New return codes on interrupt or non-ownership of mutex. (_Jv_CondNotify): Ditto. (_Jv_CondNotifyAll): Ditto. (_Jv_ThreadInterrupt): Set thread interrupt flag directly. Interrupt the target thread by signaling its wait condition. (_Jv_ThreadInitData): Set `thread_obj' in the thread data struct, not the starter struct. Initialize wait_mutex and wait_cond. (_Jv_MutexLock): New recursive mutex implementation. Moved from posix-threads.h. (_Jv_MutexUnlock): Ditto. (really_start): Set info->data->thread from pthread_self() to work around a race condition. Destroy wait_mutex and wait_cond when run() returns. * java/lang/Thread.java: (isInterrupted_): Renamed to overloaded `isInterrupted(boolean)'. Clear interrupted flag if clear_flag is set. startable_flag: New private field. (Thread): Initialize `startable_flag'. (toString): Check for null thread group. * java/lang/natThread.cc: (struct natThread): New fields `join_mutex', `join_cond'. Removed fields `joiner', `next'. (class locker): Removed. (initialize_native): Initialize `join_cond' and `join_mutex'. (interrupt): Now just calls _Jv_ThreadInterrupt(). (join): Simplified. Just wait on the target thread's join condition. (finish_): Remove join list code. Unset thread group. Signal potential joiners by notifying the dying threads join_cond. (start): Check for illegal restarts. * java/lang/natObject.cc: Check for return value of _Jv_CondWait and act appropriatly. * include/posix-threads.h: Remove all HAVE_RECURSIVE_MUTEX related #defines and #ifdefs. (struct _Jv_Thread_t): New fields `thread_obj', `wait_cond', `wait_mutex', `next'. (struct _Jv_ConditionVariable_t): Define as a struct instead of directly mapping to pthread_cond_t. (struct _Jv_Mutex_t): New recursive implementation. (_Jv_PthreadCheckMonitor): Reimplemented. Simple `owner' check. _Jv_HaveCondDestroy: Never define this for posix-threads. (_Jv_CondNotify): Remove inline implementation(s), prototype instead. (_Jv_CondNotifyAll): Ditto. (_Jv_MutexLock): Ditto. (_Jv_MutexUnlock): Ditto. (_Jv_MutexInit): Changed to reflect new mutex implementation. (_Jv_MutexDestroy): Ditto. (_Jv_CondDestroy): Removed. (_Jv_PthreadGetMutex): Removed. * include/win32-threads.h: (_Jv_CondNotify): Guess _JV_NOT_OWNER on an error. Add a FIXME about this. (_Jv_CondNotifyAll): Ditto. * win32-threads.cc: (_Jv_CondWait): Return 0 on a timeout. Guess _JV_NOT_OWNER on other errors. Add FIXME. From-SVN: r32773
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typedef struct _Jv_Thread_t
{
// Flag values are defined in implementation.
int flags;
Makefile.in: New #defines and friends for Thread.h. * Makefile.in: New #defines and friends for Thread.h. * posix-threads.cc: (struct starter): Remove `object'. (_Jv_CondWait): Use interruptable condition variables and new recursive mutexes. New return codes on interrupt or non-ownership of mutex. (_Jv_CondNotify): Ditto. (_Jv_CondNotifyAll): Ditto. (_Jv_ThreadInterrupt): Set thread interrupt flag directly. Interrupt the target thread by signaling its wait condition. (_Jv_ThreadInitData): Set `thread_obj' in the thread data struct, not the starter struct. Initialize wait_mutex and wait_cond. (_Jv_MutexLock): New recursive mutex implementation. Moved from posix-threads.h. (_Jv_MutexUnlock): Ditto. (really_start): Set info->data->thread from pthread_self() to work around a race condition. Destroy wait_mutex and wait_cond when run() returns. * java/lang/Thread.java: (isInterrupted_): Renamed to overloaded `isInterrupted(boolean)'. Clear interrupted flag if clear_flag is set. startable_flag: New private field. (Thread): Initialize `startable_flag'. (toString): Check for null thread group. * java/lang/natThread.cc: (struct natThread): New fields `join_mutex', `join_cond'. Removed fields `joiner', `next'. (class locker): Removed. (initialize_native): Initialize `join_cond' and `join_mutex'. (interrupt): Now just calls _Jv_ThreadInterrupt(). (join): Simplified. Just wait on the target thread's join condition. (finish_): Remove join list code. Unset thread group. Signal potential joiners by notifying the dying threads join_cond. (start): Check for illegal restarts. * java/lang/natObject.cc: Check for return value of _Jv_CondWait and act appropriatly. * include/posix-threads.h: Remove all HAVE_RECURSIVE_MUTEX related #defines and #ifdefs. (struct _Jv_Thread_t): New fields `thread_obj', `wait_cond', `wait_mutex', `next'. (struct _Jv_ConditionVariable_t): Define as a struct instead of directly mapping to pthread_cond_t. (struct _Jv_Mutex_t): New recursive implementation. (_Jv_PthreadCheckMonitor): Reimplemented. Simple `owner' check. _Jv_HaveCondDestroy: Never define this for posix-threads. (_Jv_CondNotify): Remove inline implementation(s), prototype instead. (_Jv_CondNotifyAll): Ditto. (_Jv_MutexLock): Ditto. (_Jv_MutexUnlock): Ditto. (_Jv_MutexInit): Changed to reflect new mutex implementation. (_Jv_MutexDestroy): Ditto. (_Jv_CondDestroy): Removed. (_Jv_PthreadGetMutex): Removed. * include/win32-threads.h: (_Jv_CondNotify): Guess _JV_NOT_OWNER on an error. Add a FIXME about this. (_Jv_CondNotifyAll): Ditto. * win32-threads.cc: (_Jv_CondWait): Return 0 on a timeout. Guess _JV_NOT_OWNER on other errors. Add FIXME. From-SVN: r32773
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// Actual thread id.
pthread_t thread;
// Java Thread object.
java::lang::Thread *thread_obj;
// Condition variable and corresponding mutex, used to implement the
// interruptable wait/notify mechanism.
pthread_cond_t wait_cond;
pthread_mutex_t wait_mutex;
// Next thread for Condition Variable wait-list chain.
_Jv_Thread_t *next;
} _Jv_Thread_t;
Makefile.in: New #defines and friends for Thread.h. * Makefile.in: New #defines and friends for Thread.h. * posix-threads.cc: (struct starter): Remove `object'. (_Jv_CondWait): Use interruptable condition variables and new recursive mutexes. New return codes on interrupt or non-ownership of mutex. (_Jv_CondNotify): Ditto. (_Jv_CondNotifyAll): Ditto. (_Jv_ThreadInterrupt): Set thread interrupt flag directly. Interrupt the target thread by signaling its wait condition. (_Jv_ThreadInitData): Set `thread_obj' in the thread data struct, not the starter struct. Initialize wait_mutex and wait_cond. (_Jv_MutexLock): New recursive mutex implementation. Moved from posix-threads.h. (_Jv_MutexUnlock): Ditto. (really_start): Set info->data->thread from pthread_self() to work around a race condition. Destroy wait_mutex and wait_cond when run() returns. * java/lang/Thread.java: (isInterrupted_): Renamed to overloaded `isInterrupted(boolean)'. Clear interrupted flag if clear_flag is set. startable_flag: New private field. (Thread): Initialize `startable_flag'. (toString): Check for null thread group. * java/lang/natThread.cc: (struct natThread): New fields `join_mutex', `join_cond'. Removed fields `joiner', `next'. (class locker): Removed. (initialize_native): Initialize `join_cond' and `join_mutex'. (interrupt): Now just calls _Jv_ThreadInterrupt(). (join): Simplified. Just wait on the target thread's join condition. (finish_): Remove join list code. Unset thread group. Signal potential joiners by notifying the dying threads join_cond. (start): Check for illegal restarts. * java/lang/natObject.cc: Check for return value of _Jv_CondWait and act appropriatly. * include/posix-threads.h: Remove all HAVE_RECURSIVE_MUTEX related #defines and #ifdefs. (struct _Jv_Thread_t): New fields `thread_obj', `wait_cond', `wait_mutex', `next'. (struct _Jv_ConditionVariable_t): Define as a struct instead of directly mapping to pthread_cond_t. (struct _Jv_Mutex_t): New recursive implementation. (_Jv_PthreadCheckMonitor): Reimplemented. Simple `owner' check. _Jv_HaveCondDestroy: Never define this for posix-threads. (_Jv_CondNotify): Remove inline implementation(s), prototype instead. (_Jv_CondNotifyAll): Ditto. (_Jv_MutexLock): Ditto. (_Jv_MutexUnlock): Ditto. (_Jv_MutexInit): Changed to reflect new mutex implementation. (_Jv_MutexDestroy): Ditto. (_Jv_CondDestroy): Removed. (_Jv_PthreadGetMutex): Removed. * include/win32-threads.h: (_Jv_CondNotify): Guess _JV_NOT_OWNER on an error. Add a FIXME about this. (_Jv_CondNotifyAll): Ditto. * win32-threads.cc: (_Jv_CondWait): Return 0 on a timeout. Guess _JV_NOT_OWNER on other errors. Add FIXME. From-SVN: r32773
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typedef void _Jv_ThreadStartFunc (java::lang::Thread *);
Makefile.in: New #defines and friends for Thread.h. * Makefile.in: New #defines and friends for Thread.h. * posix-threads.cc: (struct starter): Remove `object'. (_Jv_CondWait): Use interruptable condition variables and new recursive mutexes. New return codes on interrupt or non-ownership of mutex. (_Jv_CondNotify): Ditto. (_Jv_CondNotifyAll): Ditto. (_Jv_ThreadInterrupt): Set thread interrupt flag directly. Interrupt the target thread by signaling its wait condition. (_Jv_ThreadInitData): Set `thread_obj' in the thread data struct, not the starter struct. Initialize wait_mutex and wait_cond. (_Jv_MutexLock): New recursive mutex implementation. Moved from posix-threads.h. (_Jv_MutexUnlock): Ditto. (really_start): Set info->data->thread from pthread_self() to work around a race condition. Destroy wait_mutex and wait_cond when run() returns. * java/lang/Thread.java: (isInterrupted_): Renamed to overloaded `isInterrupted(boolean)'. Clear interrupted flag if clear_flag is set. startable_flag: New private field. (Thread): Initialize `startable_flag'. (toString): Check for null thread group. * java/lang/natThread.cc: (struct natThread): New fields `join_mutex', `join_cond'. Removed fields `joiner', `next'. (class locker): Removed. (initialize_native): Initialize `join_cond' and `join_mutex'. (interrupt): Now just calls _Jv_ThreadInterrupt(). (join): Simplified. Just wait on the target thread's join condition. (finish_): Remove join list code. Unset thread group. Signal potential joiners by notifying the dying threads join_cond. (start): Check for illegal restarts. * java/lang/natObject.cc: Check for return value of _Jv_CondWait and act appropriatly. * include/posix-threads.h: Remove all HAVE_RECURSIVE_MUTEX related #defines and #ifdefs. (struct _Jv_Thread_t): New fields `thread_obj', `wait_cond', `wait_mutex', `next'. (struct _Jv_ConditionVariable_t): Define as a struct instead of directly mapping to pthread_cond_t. (struct _Jv_Mutex_t): New recursive implementation. (_Jv_PthreadCheckMonitor): Reimplemented. Simple `owner' check. _Jv_HaveCondDestroy: Never define this for posix-threads. (_Jv_CondNotify): Remove inline implementation(s), prototype instead. (_Jv_CondNotifyAll): Ditto. (_Jv_MutexLock): Ditto. (_Jv_MutexUnlock): Ditto. (_Jv_MutexInit): Changed to reflect new mutex implementation. (_Jv_MutexDestroy): Ditto. (_Jv_CondDestroy): Removed. (_Jv_PthreadGetMutex): Removed. * include/win32-threads.h: (_Jv_CondNotify): Guess _JV_NOT_OWNER on an error. Add a FIXME about this. (_Jv_CondNotifyAll): Ditto. * win32-threads.cc: (_Jv_CondWait): Return 0 on a timeout. Guess _JV_NOT_OWNER on other errors. Add FIXME. From-SVN: r32773
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// Condition Variables used to implement wait/notify/sleep/interrupt.
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typedef struct
{
Makefile.in: New #defines and friends for Thread.h. * Makefile.in: New #defines and friends for Thread.h. * posix-threads.cc: (struct starter): Remove `object'. (_Jv_CondWait): Use interruptable condition variables and new recursive mutexes. New return codes on interrupt or non-ownership of mutex. (_Jv_CondNotify): Ditto. (_Jv_CondNotifyAll): Ditto. (_Jv_ThreadInterrupt): Set thread interrupt flag directly. Interrupt the target thread by signaling its wait condition. (_Jv_ThreadInitData): Set `thread_obj' in the thread data struct, not the starter struct. Initialize wait_mutex and wait_cond. (_Jv_MutexLock): New recursive mutex implementation. Moved from posix-threads.h. (_Jv_MutexUnlock): Ditto. (really_start): Set info->data->thread from pthread_self() to work around a race condition. Destroy wait_mutex and wait_cond when run() returns. * java/lang/Thread.java: (isInterrupted_): Renamed to overloaded `isInterrupted(boolean)'. Clear interrupted flag if clear_flag is set. startable_flag: New private field. (Thread): Initialize `startable_flag'. (toString): Check for null thread group. * java/lang/natThread.cc: (struct natThread): New fields `join_mutex', `join_cond'. Removed fields `joiner', `next'. (class locker): Removed. (initialize_native): Initialize `join_cond' and `join_mutex'. (interrupt): Now just calls _Jv_ThreadInterrupt(). (join): Simplified. Just wait on the target thread's join condition. (finish_): Remove join list code. Unset thread group. Signal potential joiners by notifying the dying threads join_cond. (start): Check for illegal restarts. * java/lang/natObject.cc: Check for return value of _Jv_CondWait and act appropriatly. * include/posix-threads.h: Remove all HAVE_RECURSIVE_MUTEX related #defines and #ifdefs. (struct _Jv_Thread_t): New fields `thread_obj', `wait_cond', `wait_mutex', `next'. (struct _Jv_ConditionVariable_t): Define as a struct instead of directly mapping to pthread_cond_t. (struct _Jv_Mutex_t): New recursive implementation. (_Jv_PthreadCheckMonitor): Reimplemented. Simple `owner' check. _Jv_HaveCondDestroy: Never define this for posix-threads. (_Jv_CondNotify): Remove inline implementation(s), prototype instead. (_Jv_CondNotifyAll): Ditto. (_Jv_MutexLock): Ditto. (_Jv_MutexUnlock): Ditto. (_Jv_MutexInit): Changed to reflect new mutex implementation. (_Jv_MutexDestroy): Ditto. (_Jv_CondDestroy): Removed. (_Jv_PthreadGetMutex): Removed. * include/win32-threads.h: (_Jv_CondNotify): Guess _JV_NOT_OWNER on an error. Add a FIXME about this. (_Jv_CondNotifyAll): Ditto. * win32-threads.cc: (_Jv_CondWait): Return 0 on a timeout. Guess _JV_NOT_OWNER on other errors. Add FIXME. From-SVN: r32773
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// Linked list of Threads that are waiting to be notified.
_Jv_Thread_t *first;
Makefile.in: New #defines and friends for Thread.h. * Makefile.in: New #defines and friends for Thread.h. * posix-threads.cc: (struct starter): Remove `object'. (_Jv_CondWait): Use interruptable condition variables and new recursive mutexes. New return codes on interrupt or non-ownership of mutex. (_Jv_CondNotify): Ditto. (_Jv_CondNotifyAll): Ditto. (_Jv_ThreadInterrupt): Set thread interrupt flag directly. Interrupt the target thread by signaling its wait condition. (_Jv_ThreadInitData): Set `thread_obj' in the thread data struct, not the starter struct. Initialize wait_mutex and wait_cond. (_Jv_MutexLock): New recursive mutex implementation. Moved from posix-threads.h. (_Jv_MutexUnlock): Ditto. (really_start): Set info->data->thread from pthread_self() to work around a race condition. Destroy wait_mutex and wait_cond when run() returns. * java/lang/Thread.java: (isInterrupted_): Renamed to overloaded `isInterrupted(boolean)'. Clear interrupted flag if clear_flag is set. startable_flag: New private field. (Thread): Initialize `startable_flag'. (toString): Check for null thread group. * java/lang/natThread.cc: (struct natThread): New fields `join_mutex', `join_cond'. Removed fields `joiner', `next'. (class locker): Removed. (initialize_native): Initialize `join_cond' and `join_mutex'. (interrupt): Now just calls _Jv_ThreadInterrupt(). (join): Simplified. Just wait on the target thread's join condition. (finish_): Remove join list code. Unset thread group. Signal potential joiners by notifying the dying threads join_cond. (start): Check for illegal restarts. * java/lang/natObject.cc: Check for return value of _Jv_CondWait and act appropriatly. * include/posix-threads.h: Remove all HAVE_RECURSIVE_MUTEX related #defines and #ifdefs. (struct _Jv_Thread_t): New fields `thread_obj', `wait_cond', `wait_mutex', `next'. (struct _Jv_ConditionVariable_t): Define as a struct instead of directly mapping to pthread_cond_t. (struct _Jv_Mutex_t): New recursive implementation. (_Jv_PthreadCheckMonitor): Reimplemented. Simple `owner' check. _Jv_HaveCondDestroy: Never define this for posix-threads. (_Jv_CondNotify): Remove inline implementation(s), prototype instead. (_Jv_CondNotifyAll): Ditto. (_Jv_MutexLock): Ditto. (_Jv_MutexUnlock): Ditto. (_Jv_MutexInit): Changed to reflect new mutex implementation. (_Jv_MutexDestroy): Ditto. (_Jv_CondDestroy): Removed. (_Jv_PthreadGetMutex): Removed. * include/win32-threads.h: (_Jv_CondNotify): Guess _JV_NOT_OWNER on an error. Add a FIXME about this. (_Jv_CondNotifyAll): Ditto. * win32-threads.cc: (_Jv_CondWait): Return 0 on a timeout. Guess _JV_NOT_OWNER on other errors. Add FIXME. From-SVN: r32773
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} _Jv_ConditionVariable_t;
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typedef struct
{
Makefile.in: New #defines and friends for Thread.h. * Makefile.in: New #defines and friends for Thread.h. * posix-threads.cc: (struct starter): Remove `object'. (_Jv_CondWait): Use interruptable condition variables and new recursive mutexes. New return codes on interrupt or non-ownership of mutex. (_Jv_CondNotify): Ditto. (_Jv_CondNotifyAll): Ditto. (_Jv_ThreadInterrupt): Set thread interrupt flag directly. Interrupt the target thread by signaling its wait condition. (_Jv_ThreadInitData): Set `thread_obj' in the thread data struct, not the starter struct. Initialize wait_mutex and wait_cond. (_Jv_MutexLock): New recursive mutex implementation. Moved from posix-threads.h. (_Jv_MutexUnlock): Ditto. (really_start): Set info->data->thread from pthread_self() to work around a race condition. Destroy wait_mutex and wait_cond when run() returns. * java/lang/Thread.java: (isInterrupted_): Renamed to overloaded `isInterrupted(boolean)'. Clear interrupted flag if clear_flag is set. startable_flag: New private field. (Thread): Initialize `startable_flag'. (toString): Check for null thread group. * java/lang/natThread.cc: (struct natThread): New fields `join_mutex', `join_cond'. Removed fields `joiner', `next'. (class locker): Removed. (initialize_native): Initialize `join_cond' and `join_mutex'. (interrupt): Now just calls _Jv_ThreadInterrupt(). (join): Simplified. Just wait on the target thread's join condition. (finish_): Remove join list code. Unset thread group. Signal potential joiners by notifying the dying threads join_cond. (start): Check for illegal restarts. * java/lang/natObject.cc: Check for return value of _Jv_CondWait and act appropriatly. * include/posix-threads.h: Remove all HAVE_RECURSIVE_MUTEX related #defines and #ifdefs. (struct _Jv_Thread_t): New fields `thread_obj', `wait_cond', `wait_mutex', `next'. (struct _Jv_ConditionVariable_t): Define as a struct instead of directly mapping to pthread_cond_t. (struct _Jv_Mutex_t): New recursive implementation. (_Jv_PthreadCheckMonitor): Reimplemented. Simple `owner' check. _Jv_HaveCondDestroy: Never define this for posix-threads. (_Jv_CondNotify): Remove inline implementation(s), prototype instead. (_Jv_CondNotifyAll): Ditto. (_Jv_MutexLock): Ditto. (_Jv_MutexUnlock): Ditto. (_Jv_MutexInit): Changed to reflect new mutex implementation. (_Jv_MutexDestroy): Ditto. (_Jv_CondDestroy): Removed. (_Jv_PthreadGetMutex): Removed. * include/win32-threads.h: (_Jv_CondNotify): Guess _JV_NOT_OWNER on an error. Add a FIXME about this. (_Jv_CondNotifyAll): Ditto. * win32-threads.cc: (_Jv_CondWait): Return 0 on a timeout. Guess _JV_NOT_OWNER on other errors. Add FIXME. From-SVN: r32773
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// For compatibility, simplicity, and correctness, we do not use the native
// pthreads recursive mutex implementation, but simulate them instead.
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Makefile.in: New #defines and friends for Thread.h. * Makefile.in: New #defines and friends for Thread.h. * posix-threads.cc: (struct starter): Remove `object'. (_Jv_CondWait): Use interruptable condition variables and new recursive mutexes. New return codes on interrupt or non-ownership of mutex. (_Jv_CondNotify): Ditto. (_Jv_CondNotifyAll): Ditto. (_Jv_ThreadInterrupt): Set thread interrupt flag directly. Interrupt the target thread by signaling its wait condition. (_Jv_ThreadInitData): Set `thread_obj' in the thread data struct, not the starter struct. Initialize wait_mutex and wait_cond. (_Jv_MutexLock): New recursive mutex implementation. Moved from posix-threads.h. (_Jv_MutexUnlock): Ditto. (really_start): Set info->data->thread from pthread_self() to work around a race condition. Destroy wait_mutex and wait_cond when run() returns. * java/lang/Thread.java: (isInterrupted_): Renamed to overloaded `isInterrupted(boolean)'. Clear interrupted flag if clear_flag is set. startable_flag: New private field. (Thread): Initialize `startable_flag'. (toString): Check for null thread group. * java/lang/natThread.cc: (struct natThread): New fields `join_mutex', `join_cond'. Removed fields `joiner', `next'. (class locker): Removed. (initialize_native): Initialize `join_cond' and `join_mutex'. (interrupt): Now just calls _Jv_ThreadInterrupt(). (join): Simplified. Just wait on the target thread's join condition. (finish_): Remove join list code. Unset thread group. Signal potential joiners by notifying the dying threads join_cond. (start): Check for illegal restarts. * java/lang/natObject.cc: Check for return value of _Jv_CondWait and act appropriatly. * include/posix-threads.h: Remove all HAVE_RECURSIVE_MUTEX related #defines and #ifdefs. (struct _Jv_Thread_t): New fields `thread_obj', `wait_cond', `wait_mutex', `next'. (struct _Jv_ConditionVariable_t): Define as a struct instead of directly mapping to pthread_cond_t. (struct _Jv_Mutex_t): New recursive implementation. (_Jv_PthreadCheckMonitor): Reimplemented. Simple `owner' check. _Jv_HaveCondDestroy: Never define this for posix-threads. (_Jv_CondNotify): Remove inline implementation(s), prototype instead. (_Jv_CondNotifyAll): Ditto. (_Jv_MutexLock): Ditto. (_Jv_MutexUnlock): Ditto. (_Jv_MutexInit): Changed to reflect new mutex implementation. (_Jv_MutexDestroy): Ditto. (_Jv_CondDestroy): Removed. (_Jv_PthreadGetMutex): Removed. * include/win32-threads.h: (_Jv_CondNotify): Guess _JV_NOT_OWNER on an error. Add a FIXME about this. (_Jv_CondNotifyAll): Ditto. * win32-threads.cc: (_Jv_CondWait): Return 0 on a timeout. Guess _JV_NOT_OWNER on other errors. Add FIXME. From-SVN: r32773
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// Mutex the thread holds the entire time this mutex is held.
pthread_mutex_t mutex;
1999-04-07 16:42:40 +02:00
Makefile.in: New #defines and friends for Thread.h. * Makefile.in: New #defines and friends for Thread.h. * posix-threads.cc: (struct starter): Remove `object'. (_Jv_CondWait): Use interruptable condition variables and new recursive mutexes. New return codes on interrupt or non-ownership of mutex. (_Jv_CondNotify): Ditto. (_Jv_CondNotifyAll): Ditto. (_Jv_ThreadInterrupt): Set thread interrupt flag directly. Interrupt the target thread by signaling its wait condition. (_Jv_ThreadInitData): Set `thread_obj' in the thread data struct, not the starter struct. Initialize wait_mutex and wait_cond. (_Jv_MutexLock): New recursive mutex implementation. Moved from posix-threads.h. (_Jv_MutexUnlock): Ditto. (really_start): Set info->data->thread from pthread_self() to work around a race condition. Destroy wait_mutex and wait_cond when run() returns. * java/lang/Thread.java: (isInterrupted_): Renamed to overloaded `isInterrupted(boolean)'. Clear interrupted flag if clear_flag is set. startable_flag: New private field. (Thread): Initialize `startable_flag'. (toString): Check for null thread group. * java/lang/natThread.cc: (struct natThread): New fields `join_mutex', `join_cond'. Removed fields `joiner', `next'. (class locker): Removed. (initialize_native): Initialize `join_cond' and `join_mutex'. (interrupt): Now just calls _Jv_ThreadInterrupt(). (join): Simplified. Just wait on the target thread's join condition. (finish_): Remove join list code. Unset thread group. Signal potential joiners by notifying the dying threads join_cond. (start): Check for illegal restarts. * java/lang/natObject.cc: Check for return value of _Jv_CondWait and act appropriatly. * include/posix-threads.h: Remove all HAVE_RECURSIVE_MUTEX related #defines and #ifdefs. (struct _Jv_Thread_t): New fields `thread_obj', `wait_cond', `wait_mutex', `next'. (struct _Jv_ConditionVariable_t): Define as a struct instead of directly mapping to pthread_cond_t. (struct _Jv_Mutex_t): New recursive implementation. (_Jv_PthreadCheckMonitor): Reimplemented. Simple `owner' check. _Jv_HaveCondDestroy: Never define this for posix-threads. (_Jv_CondNotify): Remove inline implementation(s), prototype instead. (_Jv_CondNotifyAll): Ditto. (_Jv_MutexLock): Ditto. (_Jv_MutexUnlock): Ditto. (_Jv_MutexInit): Changed to reflect new mutex implementation. (_Jv_MutexDestroy): Ditto. (_Jv_CondDestroy): Removed. (_Jv_PthreadGetMutex): Removed. * include/win32-threads.h: (_Jv_CondNotify): Guess _JV_NOT_OWNER on an error. Add a FIXME about this. (_Jv_CondNotifyAll): Ditto. * win32-threads.cc: (_Jv_CondWait): Return 0 on a timeout. Guess _JV_NOT_OWNER on other errors. Add FIXME. From-SVN: r32773
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// Thread holding this mutex.
pthread_t owner;
Makefile.in: New #defines and friends for Thread.h. * Makefile.in: New #defines and friends for Thread.h. * posix-threads.cc: (struct starter): Remove `object'. (_Jv_CondWait): Use interruptable condition variables and new recursive mutexes. New return codes on interrupt or non-ownership of mutex. (_Jv_CondNotify): Ditto. (_Jv_CondNotifyAll): Ditto. (_Jv_ThreadInterrupt): Set thread interrupt flag directly. Interrupt the target thread by signaling its wait condition. (_Jv_ThreadInitData): Set `thread_obj' in the thread data struct, not the starter struct. Initialize wait_mutex and wait_cond. (_Jv_MutexLock): New recursive mutex implementation. Moved from posix-threads.h. (_Jv_MutexUnlock): Ditto. (really_start): Set info->data->thread from pthread_self() to work around a race condition. Destroy wait_mutex and wait_cond when run() returns. * java/lang/Thread.java: (isInterrupted_): Renamed to overloaded `isInterrupted(boolean)'. Clear interrupted flag if clear_flag is set. startable_flag: New private field. (Thread): Initialize `startable_flag'. (toString): Check for null thread group. * java/lang/natThread.cc: (struct natThread): New fields `join_mutex', `join_cond'. Removed fields `joiner', `next'. (class locker): Removed. (initialize_native): Initialize `join_cond' and `join_mutex'. (interrupt): Now just calls _Jv_ThreadInterrupt(). (join): Simplified. Just wait on the target thread's join condition. (finish_): Remove join list code. Unset thread group. Signal potential joiners by notifying the dying threads join_cond. (start): Check for illegal restarts. * java/lang/natObject.cc: Check for return value of _Jv_CondWait and act appropriatly. * include/posix-threads.h: Remove all HAVE_RECURSIVE_MUTEX related #defines and #ifdefs. (struct _Jv_Thread_t): New fields `thread_obj', `wait_cond', `wait_mutex', `next'. (struct _Jv_ConditionVariable_t): Define as a struct instead of directly mapping to pthread_cond_t. (struct _Jv_Mutex_t): New recursive implementation. (_Jv_PthreadCheckMonitor): Reimplemented. Simple `owner' check. _Jv_HaveCondDestroy: Never define this for posix-threads. (_Jv_CondNotify): Remove inline implementation(s), prototype instead. (_Jv_CondNotifyAll): Ditto. (_Jv_MutexLock): Ditto. (_Jv_MutexUnlock): Ditto. (_Jv_MutexInit): Changed to reflect new mutex implementation. (_Jv_MutexDestroy): Ditto. (_Jv_CondDestroy): Removed. (_Jv_PthreadGetMutex): Removed. * include/win32-threads.h: (_Jv_CondNotify): Guess _JV_NOT_OWNER on an error. Add a FIXME about this. (_Jv_CondNotifyAll): Ditto. * win32-threads.cc: (_Jv_CondWait): Return 0 on a timeout. Guess _JV_NOT_OWNER on other errors. Add FIXME. From-SVN: r32773
2000-03-28 04:22:24 +02:00
// Number of times mutex is held (lock depth). If 0, the lock is not held.
int count;
} _Jv_Mutex_t;
// This is a convenience function used only by the pthreads thread
// implementation. This is slow, but that's too bad -- we need to do
// the checks for correctness. It might be nice to be able to compile
// this out. Returns 0 if the lock is held by the current thread, and
// 1 otherwise.
inline int
_Jv_MutexCheckMonitor (_Jv_Mutex_t *mu)
{
return (pthread_equal(mu->owner, pthread_self()) == 0);
}
// Type identifying a POSIX thread.
typedef pthread_t _Jv_ThreadDesc_t;
inline _Jv_ThreadDesc_t
_Jv_GetPlatformThreadID(_Jv_Thread_t *t)
{
return t->thread;
}
re PR libgcj/29324 (add wait handling hook) PR libgcj/29324 * include/posix-threads.h (_Jv_BlockSigchld): Declare. (_Jv_UnBlockSigchld): Same. * posix-threads.cc: Include posix-threads.h. (block_sigchld) Rename to... (_Jv_BlockSigchld) ... this. (_Jv_UnBlockSigchld): New function. (_Jv_InitThreads): Call _Jv_BlockSigchld in place of block_sigchld. (_Jv_ThreadStart): Same. * java/lang/PosixProcess$ProcessManager.h: Regenerate. * java/lang/PosixProcess.java: Clean up imports. (ProcessManager): Make final. (ProcessManager.queue): Genericise and make private. (ProcessManager.pidToProcess): Remove. (ProcessManager.liveProcesses): New field. (ProcessManager.reaperPID): Remove. (ProcessManager.nativeData): New field. (ProcessManager.removeProcessFromMap): Remove. (ProcessManager.addProcessToMap):Remove. (ProcessManager.addToLiveProcesses): New method. (ProcessManager.run): Rewritten. (ProcessManager.reap): Change method signature, (getErrorStream): Correct formatting. (getInputStream): Same. (spawn): Add process to liveProcesses list. (pid): Make package private. * java/lang/PosixProcess.h: Regenerate. * java/lang/natPosixProcess.cc: Include posix.h and posix-threads.h. Add useing namespace java::lang. (ProcessManagerInternal): New struct. (sigchld_handler): Rewritten. (init): Rewritten. (waitForSignal): Same. (reap): Same. (signalReaper): Same. (nativeDestroy): Call kill as ::kill. (nativeSpawn): Correct formatting. * classpath/lib/java/lang/PosixProcess$EOFInputStream.class: Regenerate. * classpath/lib/java/lang/PosixProcess.class: Same. * classpath/lib/java/lang/PosixProcess$ProcessManager.class: Same. From-SVN: r124638
2007-05-12 19:37:55 +02:00
//
// Signal helpers.
//
void _Jv_BlockSigchld();
void _Jv_UnBlockSigchld();
1999-04-07 16:42:40 +02:00
//
// Condition variables.
//
int _Jv_CondWait (_Jv_ConditionVariable_t *cv, _Jv_Mutex_t *mu,
jlong millis, jint nanos);
Makefile.in: New #defines and friends for Thread.h. * Makefile.in: New #defines and friends for Thread.h. * posix-threads.cc: (struct starter): Remove `object'. (_Jv_CondWait): Use interruptable condition variables and new recursive mutexes. New return codes on interrupt or non-ownership of mutex. (_Jv_CondNotify): Ditto. (_Jv_CondNotifyAll): Ditto. (_Jv_ThreadInterrupt): Set thread interrupt flag directly. Interrupt the target thread by signaling its wait condition. (_Jv_ThreadInitData): Set `thread_obj' in the thread data struct, not the starter struct. Initialize wait_mutex and wait_cond. (_Jv_MutexLock): New recursive mutex implementation. Moved from posix-threads.h. (_Jv_MutexUnlock): Ditto. (really_start): Set info->data->thread from pthread_self() to work around a race condition. Destroy wait_mutex and wait_cond when run() returns. * java/lang/Thread.java: (isInterrupted_): Renamed to overloaded `isInterrupted(boolean)'. Clear interrupted flag if clear_flag is set. startable_flag: New private field. (Thread): Initialize `startable_flag'. (toString): Check for null thread group. * java/lang/natThread.cc: (struct natThread): New fields `join_mutex', `join_cond'. Removed fields `joiner', `next'. (class locker): Removed. (initialize_native): Initialize `join_cond' and `join_mutex'. (interrupt): Now just calls _Jv_ThreadInterrupt(). (join): Simplified. Just wait on the target thread's join condition. (finish_): Remove join list code. Unset thread group. Signal potential joiners by notifying the dying threads join_cond. (start): Check for illegal restarts. * java/lang/natObject.cc: Check for return value of _Jv_CondWait and act appropriatly. * include/posix-threads.h: Remove all HAVE_RECURSIVE_MUTEX related #defines and #ifdefs. (struct _Jv_Thread_t): New fields `thread_obj', `wait_cond', `wait_mutex', `next'. (struct _Jv_ConditionVariable_t): Define as a struct instead of directly mapping to pthread_cond_t. (struct _Jv_Mutex_t): New recursive implementation. (_Jv_PthreadCheckMonitor): Reimplemented. Simple `owner' check. _Jv_HaveCondDestroy: Never define this for posix-threads. (_Jv_CondNotify): Remove inline implementation(s), prototype instead. (_Jv_CondNotifyAll): Ditto. (_Jv_MutexLock): Ditto. (_Jv_MutexUnlock): Ditto. (_Jv_MutexInit): Changed to reflect new mutex implementation. (_Jv_MutexDestroy): Ditto. (_Jv_CondDestroy): Removed. (_Jv_PthreadGetMutex): Removed. * include/win32-threads.h: (_Jv_CondNotify): Guess _JV_NOT_OWNER on an error. Add a FIXME about this. (_Jv_CondNotifyAll): Ditto. * win32-threads.cc: (_Jv_CondWait): Return 0 on a timeout. Guess _JV_NOT_OWNER on other errors. Add FIXME. From-SVN: r32773
2000-03-28 04:22:24 +02:00
int _Jv_CondNotify (_Jv_ConditionVariable_t *cv, _Jv_Mutex_t *mu);
1999-04-07 16:42:40 +02:00
Makefile.in: New #defines and friends for Thread.h. * Makefile.in: New #defines and friends for Thread.h. * posix-threads.cc: (struct starter): Remove `object'. (_Jv_CondWait): Use interruptable condition variables and new recursive mutexes. New return codes on interrupt or non-ownership of mutex. (_Jv_CondNotify): Ditto. (_Jv_CondNotifyAll): Ditto. (_Jv_ThreadInterrupt): Set thread interrupt flag directly. Interrupt the target thread by signaling its wait condition. (_Jv_ThreadInitData): Set `thread_obj' in the thread data struct, not the starter struct. Initialize wait_mutex and wait_cond. (_Jv_MutexLock): New recursive mutex implementation. Moved from posix-threads.h. (_Jv_MutexUnlock): Ditto. (really_start): Set info->data->thread from pthread_self() to work around a race condition. Destroy wait_mutex and wait_cond when run() returns. * java/lang/Thread.java: (isInterrupted_): Renamed to overloaded `isInterrupted(boolean)'. Clear interrupted flag if clear_flag is set. startable_flag: New private field. (Thread): Initialize `startable_flag'. (toString): Check for null thread group. * java/lang/natThread.cc: (struct natThread): New fields `join_mutex', `join_cond'. Removed fields `joiner', `next'. (class locker): Removed. (initialize_native): Initialize `join_cond' and `join_mutex'. (interrupt): Now just calls _Jv_ThreadInterrupt(). (join): Simplified. Just wait on the target thread's join condition. (finish_): Remove join list code. Unset thread group. Signal potential joiners by notifying the dying threads join_cond. (start): Check for illegal restarts. * java/lang/natObject.cc: Check for return value of _Jv_CondWait and act appropriatly. * include/posix-threads.h: Remove all HAVE_RECURSIVE_MUTEX related #defines and #ifdefs. (struct _Jv_Thread_t): New fields `thread_obj', `wait_cond', `wait_mutex', `next'. (struct _Jv_ConditionVariable_t): Define as a struct instead of directly mapping to pthread_cond_t. (struct _Jv_Mutex_t): New recursive implementation. (_Jv_PthreadCheckMonitor): Reimplemented. Simple `owner' check. _Jv_HaveCondDestroy: Never define this for posix-threads. (_Jv_CondNotify): Remove inline implementation(s), prototype instead. (_Jv_CondNotifyAll): Ditto. (_Jv_MutexLock): Ditto. (_Jv_MutexUnlock): Ditto. (_Jv_MutexInit): Changed to reflect new mutex implementation. (_Jv_MutexDestroy): Ditto. (_Jv_CondDestroy): Removed. (_Jv_PthreadGetMutex): Removed. * include/win32-threads.h: (_Jv_CondNotify): Guess _JV_NOT_OWNER on an error. Add a FIXME about this. (_Jv_CondNotifyAll): Ditto. * win32-threads.cc: (_Jv_CondWait): Return 0 on a timeout. Guess _JV_NOT_OWNER on other errors. Add FIXME. From-SVN: r32773
2000-03-28 04:22:24 +02:00
int _Jv_CondNotifyAll (_Jv_ConditionVariable_t *cv, _Jv_Mutex_t *mu);
1999-04-07 16:42:40 +02:00
Makefile.in: New #defines and friends for Thread.h. * Makefile.in: New #defines and friends for Thread.h. * posix-threads.cc: (struct starter): Remove `object'. (_Jv_CondWait): Use interruptable condition variables and new recursive mutexes. New return codes on interrupt or non-ownership of mutex. (_Jv_CondNotify): Ditto. (_Jv_CondNotifyAll): Ditto. (_Jv_ThreadInterrupt): Set thread interrupt flag directly. Interrupt the target thread by signaling its wait condition. (_Jv_ThreadInitData): Set `thread_obj' in the thread data struct, not the starter struct. Initialize wait_mutex and wait_cond. (_Jv_MutexLock): New recursive mutex implementation. Moved from posix-threads.h. (_Jv_MutexUnlock): Ditto. (really_start): Set info->data->thread from pthread_self() to work around a race condition. Destroy wait_mutex and wait_cond when run() returns. * java/lang/Thread.java: (isInterrupted_): Renamed to overloaded `isInterrupted(boolean)'. Clear interrupted flag if clear_flag is set. startable_flag: New private field. (Thread): Initialize `startable_flag'. (toString): Check for null thread group. * java/lang/natThread.cc: (struct natThread): New fields `join_mutex', `join_cond'. Removed fields `joiner', `next'. (class locker): Removed. (initialize_native): Initialize `join_cond' and `join_mutex'. (interrupt): Now just calls _Jv_ThreadInterrupt(). (join): Simplified. Just wait on the target thread's join condition. (finish_): Remove join list code. Unset thread group. Signal potential joiners by notifying the dying threads join_cond. (start): Check for illegal restarts. * java/lang/natObject.cc: Check for return value of _Jv_CondWait and act appropriatly. * include/posix-threads.h: Remove all HAVE_RECURSIVE_MUTEX related #defines and #ifdefs. (struct _Jv_Thread_t): New fields `thread_obj', `wait_cond', `wait_mutex', `next'. (struct _Jv_ConditionVariable_t): Define as a struct instead of directly mapping to pthread_cond_t. (struct _Jv_Mutex_t): New recursive implementation. (_Jv_PthreadCheckMonitor): Reimplemented. Simple `owner' check. _Jv_HaveCondDestroy: Never define this for posix-threads. (_Jv_CondNotify): Remove inline implementation(s), prototype instead. (_Jv_CondNotifyAll): Ditto. (_Jv_MutexLock): Ditto. (_Jv_MutexUnlock): Ditto. (_Jv_MutexInit): Changed to reflect new mutex implementation. (_Jv_MutexDestroy): Ditto. (_Jv_CondDestroy): Removed. (_Jv_PthreadGetMutex): Removed. * include/win32-threads.h: (_Jv_CondNotify): Guess _JV_NOT_OWNER on an error. Add a FIXME about this. (_Jv_CondNotifyAll): Ditto. * win32-threads.cc: (_Jv_CondWait): Return 0 on a timeout. Guess _JV_NOT_OWNER on other errors. Add FIXME. From-SVN: r32773
2000-03-28 04:22:24 +02:00
inline void
_Jv_CondInit (_Jv_ConditionVariable_t *cv)
1999-04-07 16:42:40 +02:00
{
cv->first = 0;
1999-04-07 16:42:40 +02:00
}
//
// Mutexes.
//
[multiple changes] 2001-05-23 Tom Tromey <tromey@redhat.com> * posix-threads.cc (_Jv_self_cache): Renamed from self_cache. * gcj/Makefile.in: Rebuilt. * gcj/Makefile.am (gcj_HEADERS): Added libgcj-config.h. * gcj/javaprims.h: Include gcj/libgcj-config.h. * gcj/libgcj-config.h.in: New file. * libgcj.spec.in (*jc1): Added @HASH_SYNC_SPEC@. * configure: Rebuilt. * configure.in: Enable hash synchronization by default on some platforms. (HASH_SYNC_SPEC): New subst. (AC_CONFIG_HEADER): Added gcj/libgcj-config.h. Correctly use `test -z' instead of `test -n' in a couple places. (JV_HASH_SYNCHRONIZATION): Use AC_DEFINE; don't add to LIBGCJ_CXXFLAGS. * configure.host (enable_java_net_default): Initialize. (enable_hash_synchronization_default): New variable. 2001-05-23 Hans Boehm <Hans_Boehm@hp.com> * boehm.cc (_Jv_MarkObj): Don't mark sync_info when hash synchronization in use. (_Jv_MarkArray): Likewise. (_Jv_AllocBytes): Don't check return result. (handle_out_of_memory): New function. (_Jv_InitGC): Set GC_oom_fn. (trace_one_vtable): New global. (_Jv_AllocTraceOne): New function. * configure.in: Added --enable-hash-synchronization. * defineclass.cc, prims.cc, resolve.cc, java/lang/natString.cc, java/net/natInetAddress.cc: Remove _Jv_AllocBytesChecked. * nogc.cc (_Jv_AllocObj): Throw out-of-memory. (_Jv_AllocArray): Likewise. (_Jv_AllocBytes): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_AllocTraceOne): Likewise. * posix-threads.cc (_Jv_ThreadRegister): Handle slow pthread_self(). (self_cache): New global. (_Jv_ThreadSelf_out_of_line): New function. * prims.cc (_Jv_AllocBytesChecked): Removed. (_Jv_ThrowNoMemory): New function. (_Jv_AllocObject): Don't check for null return from allocator. (_Jv_NewObjectArray): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_NewPrimArray): Allocate pointer-free object if possible. * include/javaprims.h (_Jv_AllocPtrFreeObject): Declare. (_Jv_MonitorEnter, _Jv_MonitorExit): Don't return value. * include/boehm-gc.h (_Jv_AllocObj): Define. (_Jv_AllocPtrFreeObj): Define. * include/jvm.h (_Jv_AllocPtrFreeObj): Declare. (_Jv_ThrowNoMemory): Declare. (_Jv_AllocTraceOne): Declare. (_Jv_AllocBytesChecked): Removed. * include/posix-threads.h (_Jv_MutexInit, _Jv_MutexLock, _Jv_MutexUnlock): Handle LOCK_DEBUG. (_Jv_ThreadSelf): Handle case where system pthread_self() is slow. * java/lang/Class.h (Class): Declare _Jv_AllocPtrFreeObj as friend. * java/lang/Object.h (sync_info): Conditional upon presence of hash synchronization. * java/lang/natObject.cc: Much new code to handle thin locks and hash synchronization. * java/lang/natString.cc (_Jv_AllocString): Allocate pointer-free object if possible. From-SVN: r42519
2001-05-24 07:40:37 +02:00
#ifdef LOCK_DEBUG
# include <stdio.h>
#endif
1999-04-07 16:42:40 +02:00
inline void
_Jv_MutexInit (_Jv_Mutex_t *mu)
{
[multiple changes] 2001-05-23 Tom Tromey <tromey@redhat.com> * posix-threads.cc (_Jv_self_cache): Renamed from self_cache. * gcj/Makefile.in: Rebuilt. * gcj/Makefile.am (gcj_HEADERS): Added libgcj-config.h. * gcj/javaprims.h: Include gcj/libgcj-config.h. * gcj/libgcj-config.h.in: New file. * libgcj.spec.in (*jc1): Added @HASH_SYNC_SPEC@. * configure: Rebuilt. * configure.in: Enable hash synchronization by default on some platforms. (HASH_SYNC_SPEC): New subst. (AC_CONFIG_HEADER): Added gcj/libgcj-config.h. Correctly use `test -z' instead of `test -n' in a couple places. (JV_HASH_SYNCHRONIZATION): Use AC_DEFINE; don't add to LIBGCJ_CXXFLAGS. * configure.host (enable_java_net_default): Initialize. (enable_hash_synchronization_default): New variable. 2001-05-23 Hans Boehm <Hans_Boehm@hp.com> * boehm.cc (_Jv_MarkObj): Don't mark sync_info when hash synchronization in use. (_Jv_MarkArray): Likewise. (_Jv_AllocBytes): Don't check return result. (handle_out_of_memory): New function. (_Jv_InitGC): Set GC_oom_fn. (trace_one_vtable): New global. (_Jv_AllocTraceOne): New function. * configure.in: Added --enable-hash-synchronization. * defineclass.cc, prims.cc, resolve.cc, java/lang/natString.cc, java/net/natInetAddress.cc: Remove _Jv_AllocBytesChecked. * nogc.cc (_Jv_AllocObj): Throw out-of-memory. (_Jv_AllocArray): Likewise. (_Jv_AllocBytes): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_AllocTraceOne): Likewise. * posix-threads.cc (_Jv_ThreadRegister): Handle slow pthread_self(). (self_cache): New global. (_Jv_ThreadSelf_out_of_line): New function. * prims.cc (_Jv_AllocBytesChecked): Removed. (_Jv_ThrowNoMemory): New function. (_Jv_AllocObject): Don't check for null return from allocator. (_Jv_NewObjectArray): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_NewPrimArray): Allocate pointer-free object if possible. * include/javaprims.h (_Jv_AllocPtrFreeObject): Declare. (_Jv_MonitorEnter, _Jv_MonitorExit): Don't return value. * include/boehm-gc.h (_Jv_AllocObj): Define. (_Jv_AllocPtrFreeObj): Define. * include/jvm.h (_Jv_AllocPtrFreeObj): Declare. (_Jv_ThrowNoMemory): Declare. (_Jv_AllocTraceOne): Declare. (_Jv_AllocBytesChecked): Removed. * include/posix-threads.h (_Jv_MutexInit, _Jv_MutexLock, _Jv_MutexUnlock): Handle LOCK_DEBUG. (_Jv_ThreadSelf): Handle case where system pthread_self() is slow. * java/lang/Class.h (Class): Declare _Jv_AllocPtrFreeObj as friend. * java/lang/Object.h (sync_info): Conditional upon presence of hash synchronization. * java/lang/natObject.cc: Much new code to handle thin locks and hash synchronization. * java/lang/natString.cc (_Jv_AllocString): Allocate pointer-free object if possible. From-SVN: r42519
2001-05-24 07:40:37 +02:00
# ifdef LOCK_DEBUG /* Assumes Linuxthreads */
pthread_mutexattr_t attr;
pthread_mutexattr_init(&attr);
pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ERRORCHECK);
pthread_mutex_init (&mu->mutex, &attr);
# else
pthread_mutex_init (&mu->mutex, 0);
[multiple changes] 2001-05-23 Tom Tromey <tromey@redhat.com> * posix-threads.cc (_Jv_self_cache): Renamed from self_cache. * gcj/Makefile.in: Rebuilt. * gcj/Makefile.am (gcj_HEADERS): Added libgcj-config.h. * gcj/javaprims.h: Include gcj/libgcj-config.h. * gcj/libgcj-config.h.in: New file. * libgcj.spec.in (*jc1): Added @HASH_SYNC_SPEC@. * configure: Rebuilt. * configure.in: Enable hash synchronization by default on some platforms. (HASH_SYNC_SPEC): New subst. (AC_CONFIG_HEADER): Added gcj/libgcj-config.h. Correctly use `test -z' instead of `test -n' in a couple places. (JV_HASH_SYNCHRONIZATION): Use AC_DEFINE; don't add to LIBGCJ_CXXFLAGS. * configure.host (enable_java_net_default): Initialize. (enable_hash_synchronization_default): New variable. 2001-05-23 Hans Boehm <Hans_Boehm@hp.com> * boehm.cc (_Jv_MarkObj): Don't mark sync_info when hash synchronization in use. (_Jv_MarkArray): Likewise. (_Jv_AllocBytes): Don't check return result. (handle_out_of_memory): New function. (_Jv_InitGC): Set GC_oom_fn. (trace_one_vtable): New global. (_Jv_AllocTraceOne): New function. * configure.in: Added --enable-hash-synchronization. * defineclass.cc, prims.cc, resolve.cc, java/lang/natString.cc, java/net/natInetAddress.cc: Remove _Jv_AllocBytesChecked. * nogc.cc (_Jv_AllocObj): Throw out-of-memory. (_Jv_AllocArray): Likewise. (_Jv_AllocBytes): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_AllocTraceOne): Likewise. * posix-threads.cc (_Jv_ThreadRegister): Handle slow pthread_self(). (self_cache): New global. (_Jv_ThreadSelf_out_of_line): New function. * prims.cc (_Jv_AllocBytesChecked): Removed. (_Jv_ThrowNoMemory): New function. (_Jv_AllocObject): Don't check for null return from allocator. (_Jv_NewObjectArray): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_NewPrimArray): Allocate pointer-free object if possible. * include/javaprims.h (_Jv_AllocPtrFreeObject): Declare. (_Jv_MonitorEnter, _Jv_MonitorExit): Don't return value. * include/boehm-gc.h (_Jv_AllocObj): Define. (_Jv_AllocPtrFreeObj): Define. * include/jvm.h (_Jv_AllocPtrFreeObj): Declare. (_Jv_ThrowNoMemory): Declare. (_Jv_AllocTraceOne): Declare. (_Jv_AllocBytesChecked): Removed. * include/posix-threads.h (_Jv_MutexInit, _Jv_MutexLock, _Jv_MutexUnlock): Handle LOCK_DEBUG. (_Jv_ThreadSelf): Handle case where system pthread_self() is slow. * java/lang/Class.h (Class): Declare _Jv_AllocPtrFreeObj as friend. * java/lang/Object.h (sync_info): Conditional upon presence of hash synchronization. * java/lang/natObject.cc: Much new code to handle thin locks and hash synchronization. * java/lang/natString.cc (_Jv_AllocString): Allocate pointer-free object if possible. From-SVN: r42519
2001-05-24 07:40:37 +02:00
# endif
Makefile.in: New #defines and friends for Thread.h. * Makefile.in: New #defines and friends for Thread.h. * posix-threads.cc: (struct starter): Remove `object'. (_Jv_CondWait): Use interruptable condition variables and new recursive mutexes. New return codes on interrupt or non-ownership of mutex. (_Jv_CondNotify): Ditto. (_Jv_CondNotifyAll): Ditto. (_Jv_ThreadInterrupt): Set thread interrupt flag directly. Interrupt the target thread by signaling its wait condition. (_Jv_ThreadInitData): Set `thread_obj' in the thread data struct, not the starter struct. Initialize wait_mutex and wait_cond. (_Jv_MutexLock): New recursive mutex implementation. Moved from posix-threads.h. (_Jv_MutexUnlock): Ditto. (really_start): Set info->data->thread from pthread_self() to work around a race condition. Destroy wait_mutex and wait_cond when run() returns. * java/lang/Thread.java: (isInterrupted_): Renamed to overloaded `isInterrupted(boolean)'. Clear interrupted flag if clear_flag is set. startable_flag: New private field. (Thread): Initialize `startable_flag'. (toString): Check for null thread group. * java/lang/natThread.cc: (struct natThread): New fields `join_mutex', `join_cond'. Removed fields `joiner', `next'. (class locker): Removed. (initialize_native): Initialize `join_cond' and `join_mutex'. (interrupt): Now just calls _Jv_ThreadInterrupt(). (join): Simplified. Just wait on the target thread's join condition. (finish_): Remove join list code. Unset thread group. Signal potential joiners by notifying the dying threads join_cond. (start): Check for illegal restarts. * java/lang/natObject.cc: Check for return value of _Jv_CondWait and act appropriatly. * include/posix-threads.h: Remove all HAVE_RECURSIVE_MUTEX related #defines and #ifdefs. (struct _Jv_Thread_t): New fields `thread_obj', `wait_cond', `wait_mutex', `next'. (struct _Jv_ConditionVariable_t): Define as a struct instead of directly mapping to pthread_cond_t. (struct _Jv_Mutex_t): New recursive implementation. (_Jv_PthreadCheckMonitor): Reimplemented. Simple `owner' check. _Jv_HaveCondDestroy: Never define this for posix-threads. (_Jv_CondNotify): Remove inline implementation(s), prototype instead. (_Jv_CondNotifyAll): Ditto. (_Jv_MutexLock): Ditto. (_Jv_MutexUnlock): Ditto. (_Jv_MutexInit): Changed to reflect new mutex implementation. (_Jv_MutexDestroy): Ditto. (_Jv_CondDestroy): Removed. (_Jv_PthreadGetMutex): Removed. * include/win32-threads.h: (_Jv_CondNotify): Guess _JV_NOT_OWNER on an error. Add a FIXME about this. (_Jv_CondNotifyAll): Ditto. * win32-threads.cc: (_Jv_CondWait): Return 0 on a timeout. Guess _JV_NOT_OWNER on other errors. Add FIXME. From-SVN: r32773
2000-03-28 04:22:24 +02:00
mu->count = 0;
Makefile.in: New #defines and friends for Thread.h. * Makefile.in: New #defines and friends for Thread.h. * posix-threads.cc: (struct starter): Remove `object'. (_Jv_CondWait): Use interruptable condition variables and new recursive mutexes. New return codes on interrupt or non-ownership of mutex. (_Jv_CondNotify): Ditto. (_Jv_CondNotifyAll): Ditto. (_Jv_ThreadInterrupt): Set thread interrupt flag directly. Interrupt the target thread by signaling its wait condition. (_Jv_ThreadInitData): Set `thread_obj' in the thread data struct, not the starter struct. Initialize wait_mutex and wait_cond. (_Jv_MutexLock): New recursive mutex implementation. Moved from posix-threads.h. (_Jv_MutexUnlock): Ditto. (really_start): Set info->data->thread from pthread_self() to work around a race condition. Destroy wait_mutex and wait_cond when run() returns. * java/lang/Thread.java: (isInterrupted_): Renamed to overloaded `isInterrupted(boolean)'. Clear interrupted flag if clear_flag is set. startable_flag: New private field. (Thread): Initialize `startable_flag'. (toString): Check for null thread group. * java/lang/natThread.cc: (struct natThread): New fields `join_mutex', `join_cond'. Removed fields `joiner', `next'. (class locker): Removed. (initialize_native): Initialize `join_cond' and `join_mutex'. (interrupt): Now just calls _Jv_ThreadInterrupt(). (join): Simplified. Just wait on the target thread's join condition. (finish_): Remove join list code. Unset thread group. Signal potential joiners by notifying the dying threads join_cond. (start): Check for illegal restarts. * java/lang/natObject.cc: Check for return value of _Jv_CondWait and act appropriatly. * include/posix-threads.h: Remove all HAVE_RECURSIVE_MUTEX related #defines and #ifdefs. (struct _Jv_Thread_t): New fields `thread_obj', `wait_cond', `wait_mutex', `next'. (struct _Jv_ConditionVariable_t): Define as a struct instead of directly mapping to pthread_cond_t. (struct _Jv_Mutex_t): New recursive implementation. (_Jv_PthreadCheckMonitor): Reimplemented. Simple `owner' check. _Jv_HaveCondDestroy: Never define this for posix-threads. (_Jv_CondNotify): Remove inline implementation(s), prototype instead. (_Jv_CondNotifyAll): Ditto. (_Jv_MutexLock): Ditto. (_Jv_MutexUnlock): Ditto. (_Jv_MutexInit): Changed to reflect new mutex implementation. (_Jv_MutexDestroy): Ditto. (_Jv_CondDestroy): Removed. (_Jv_PthreadGetMutex): Removed. * include/win32-threads.h: (_Jv_CondNotify): Guess _JV_NOT_OWNER on an error. Add a FIXME about this. (_Jv_CondNotifyAll): Ditto. * win32-threads.cc: (_Jv_CondWait): Return 0 on a timeout. Guess _JV_NOT_OWNER on other errors. Add FIXME. From-SVN: r32773
2000-03-28 04:22:24 +02:00
mu->owner = 0;
1999-04-07 16:42:40 +02:00
}
Makefile.in: New #defines and friends for Thread.h. * Makefile.in: New #defines and friends for Thread.h. * posix-threads.cc: (struct starter): Remove `object'. (_Jv_CondWait): Use interruptable condition variables and new recursive mutexes. New return codes on interrupt or non-ownership of mutex. (_Jv_CondNotify): Ditto. (_Jv_CondNotifyAll): Ditto. (_Jv_ThreadInterrupt): Set thread interrupt flag directly. Interrupt the target thread by signaling its wait condition. (_Jv_ThreadInitData): Set `thread_obj' in the thread data struct, not the starter struct. Initialize wait_mutex and wait_cond. (_Jv_MutexLock): New recursive mutex implementation. Moved from posix-threads.h. (_Jv_MutexUnlock): Ditto. (really_start): Set info->data->thread from pthread_self() to work around a race condition. Destroy wait_mutex and wait_cond when run() returns. * java/lang/Thread.java: (isInterrupted_): Renamed to overloaded `isInterrupted(boolean)'. Clear interrupted flag if clear_flag is set. startable_flag: New private field. (Thread): Initialize `startable_flag'. (toString): Check for null thread group. * java/lang/natThread.cc: (struct natThread): New fields `join_mutex', `join_cond'. Removed fields `joiner', `next'. (class locker): Removed. (initialize_native): Initialize `join_cond' and `join_mutex'. (interrupt): Now just calls _Jv_ThreadInterrupt(). (join): Simplified. Just wait on the target thread's join condition. (finish_): Remove join list code. Unset thread group. Signal potential joiners by notifying the dying threads join_cond. (start): Check for illegal restarts. * java/lang/natObject.cc: Check for return value of _Jv_CondWait and act appropriatly. * include/posix-threads.h: Remove all HAVE_RECURSIVE_MUTEX related #defines and #ifdefs. (struct _Jv_Thread_t): New fields `thread_obj', `wait_cond', `wait_mutex', `next'. (struct _Jv_ConditionVariable_t): Define as a struct instead of directly mapping to pthread_cond_t. (struct _Jv_Mutex_t): New recursive implementation. (_Jv_PthreadCheckMonitor): Reimplemented. Simple `owner' check. _Jv_HaveCondDestroy: Never define this for posix-threads. (_Jv_CondNotify): Remove inline implementation(s), prototype instead. (_Jv_CondNotifyAll): Ditto. (_Jv_MutexLock): Ditto. (_Jv_MutexUnlock): Ditto. (_Jv_MutexInit): Changed to reflect new mutex implementation. (_Jv_MutexDestroy): Ditto. (_Jv_CondDestroy): Removed. (_Jv_PthreadGetMutex): Removed. * include/win32-threads.h: (_Jv_CondNotify): Guess _JV_NOT_OWNER on an error. Add a FIXME about this. (_Jv_CondNotifyAll): Ditto. * win32-threads.cc: (_Jv_CondWait): Return 0 on a timeout. Guess _JV_NOT_OWNER on other errors. Add FIXME. From-SVN: r32773
2000-03-28 04:22:24 +02:00
extern int _Jv_MutexLock (_Jv_Mutex_t *);
inline int
_Jv_MutexUnlock (_Jv_Mutex_t *mu)
{
if (_Jv_MutexCheckMonitor (mu))
[multiple changes] 2001-05-23 Tom Tromey <tromey@redhat.com> * posix-threads.cc (_Jv_self_cache): Renamed from self_cache. * gcj/Makefile.in: Rebuilt. * gcj/Makefile.am (gcj_HEADERS): Added libgcj-config.h. * gcj/javaprims.h: Include gcj/libgcj-config.h. * gcj/libgcj-config.h.in: New file. * libgcj.spec.in (*jc1): Added @HASH_SYNC_SPEC@. * configure: Rebuilt. * configure.in: Enable hash synchronization by default on some platforms. (HASH_SYNC_SPEC): New subst. (AC_CONFIG_HEADER): Added gcj/libgcj-config.h. Correctly use `test -z' instead of `test -n' in a couple places. (JV_HASH_SYNCHRONIZATION): Use AC_DEFINE; don't add to LIBGCJ_CXXFLAGS. * configure.host (enable_java_net_default): Initialize. (enable_hash_synchronization_default): New variable. 2001-05-23 Hans Boehm <Hans_Boehm@hp.com> * boehm.cc (_Jv_MarkObj): Don't mark sync_info when hash synchronization in use. (_Jv_MarkArray): Likewise. (_Jv_AllocBytes): Don't check return result. (handle_out_of_memory): New function. (_Jv_InitGC): Set GC_oom_fn. (trace_one_vtable): New global. (_Jv_AllocTraceOne): New function. * configure.in: Added --enable-hash-synchronization. * defineclass.cc, prims.cc, resolve.cc, java/lang/natString.cc, java/net/natInetAddress.cc: Remove _Jv_AllocBytesChecked. * nogc.cc (_Jv_AllocObj): Throw out-of-memory. (_Jv_AllocArray): Likewise. (_Jv_AllocBytes): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_AllocTraceOne): Likewise. * posix-threads.cc (_Jv_ThreadRegister): Handle slow pthread_self(). (self_cache): New global. (_Jv_ThreadSelf_out_of_line): New function. * prims.cc (_Jv_AllocBytesChecked): Removed. (_Jv_ThrowNoMemory): New function. (_Jv_AllocObject): Don't check for null return from allocator. (_Jv_NewObjectArray): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_NewPrimArray): Allocate pointer-free object if possible. * include/javaprims.h (_Jv_AllocPtrFreeObject): Declare. (_Jv_MonitorEnter, _Jv_MonitorExit): Don't return value. * include/boehm-gc.h (_Jv_AllocObj): Define. (_Jv_AllocPtrFreeObj): Define. * include/jvm.h (_Jv_AllocPtrFreeObj): Declare. (_Jv_ThrowNoMemory): Declare. (_Jv_AllocTraceOne): Declare. (_Jv_AllocBytesChecked): Removed. * include/posix-threads.h (_Jv_MutexInit, _Jv_MutexLock, _Jv_MutexUnlock): Handle LOCK_DEBUG. (_Jv_ThreadSelf): Handle case where system pthread_self() is slow. * java/lang/Class.h (Class): Declare _Jv_AllocPtrFreeObj as friend. * java/lang/Object.h (sync_info): Conditional upon presence of hash synchronization. * java/lang/natObject.cc: Much new code to handle thin locks and hash synchronization. * java/lang/natString.cc (_Jv_AllocString): Allocate pointer-free object if possible. From-SVN: r42519
2001-05-24 07:40:37 +02:00
{
# ifdef LOCK_DEBUG
fprintf(stderr, "_Jv_MutexUnlock: Not owner\n");
for (;;) {}
# endif
return 1;
}
mu->count--;
if (mu->count == 0)
{
mu->owner = 0;
[multiple changes] 2001-05-23 Tom Tromey <tromey@redhat.com> * posix-threads.cc (_Jv_self_cache): Renamed from self_cache. * gcj/Makefile.in: Rebuilt. * gcj/Makefile.am (gcj_HEADERS): Added libgcj-config.h. * gcj/javaprims.h: Include gcj/libgcj-config.h. * gcj/libgcj-config.h.in: New file. * libgcj.spec.in (*jc1): Added @HASH_SYNC_SPEC@. * configure: Rebuilt. * configure.in: Enable hash synchronization by default on some platforms. (HASH_SYNC_SPEC): New subst. (AC_CONFIG_HEADER): Added gcj/libgcj-config.h. Correctly use `test -z' instead of `test -n' in a couple places. (JV_HASH_SYNCHRONIZATION): Use AC_DEFINE; don't add to LIBGCJ_CXXFLAGS. * configure.host (enable_java_net_default): Initialize. (enable_hash_synchronization_default): New variable. 2001-05-23 Hans Boehm <Hans_Boehm@hp.com> * boehm.cc (_Jv_MarkObj): Don't mark sync_info when hash synchronization in use. (_Jv_MarkArray): Likewise. (_Jv_AllocBytes): Don't check return result. (handle_out_of_memory): New function. (_Jv_InitGC): Set GC_oom_fn. (trace_one_vtable): New global. (_Jv_AllocTraceOne): New function. * configure.in: Added --enable-hash-synchronization. * defineclass.cc, prims.cc, resolve.cc, java/lang/natString.cc, java/net/natInetAddress.cc: Remove _Jv_AllocBytesChecked. * nogc.cc (_Jv_AllocObj): Throw out-of-memory. (_Jv_AllocArray): Likewise. (_Jv_AllocBytes): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_AllocTraceOne): Likewise. * posix-threads.cc (_Jv_ThreadRegister): Handle slow pthread_self(). (self_cache): New global. (_Jv_ThreadSelf_out_of_line): New function. * prims.cc (_Jv_AllocBytesChecked): Removed. (_Jv_ThrowNoMemory): New function. (_Jv_AllocObject): Don't check for null return from allocator. (_Jv_NewObjectArray): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_NewPrimArray): Allocate pointer-free object if possible. * include/javaprims.h (_Jv_AllocPtrFreeObject): Declare. (_Jv_MonitorEnter, _Jv_MonitorExit): Don't return value. * include/boehm-gc.h (_Jv_AllocObj): Define. (_Jv_AllocPtrFreeObj): Define. * include/jvm.h (_Jv_AllocPtrFreeObj): Declare. (_Jv_ThrowNoMemory): Declare. (_Jv_AllocTraceOne): Declare. (_Jv_AllocBytesChecked): Removed. * include/posix-threads.h (_Jv_MutexInit, _Jv_MutexLock, _Jv_MutexUnlock): Handle LOCK_DEBUG. (_Jv_ThreadSelf): Handle case where system pthread_self() is slow. * java/lang/Class.h (Class): Declare _Jv_AllocPtrFreeObj as friend. * java/lang/Object.h (sync_info): Conditional upon presence of hash synchronization. * java/lang/natObject.cc: Much new code to handle thin locks and hash synchronization. * java/lang/natString.cc (_Jv_AllocString): Allocate pointer-free object if possible. From-SVN: r42519
2001-05-24 07:40:37 +02:00
# ifdef LOCK_DEBUG
int result = pthread_mutex_unlock (&mu->mutex);
if (0 != result)
{
fprintf(stderr, "Pthread_mutex_unlock returned %d\n", result);
for (;;) {}
}
# else
pthread_mutex_unlock (&mu->mutex);
# endif
}
return 0;
}
1999-04-07 16:42:40 +02:00
#ifndef LINUX_THREADS
// pthread_mutex_destroy does nothing on Linux and it is a win to avoid
// defining this macro.
#define _Jv_HaveMutexDestroy
Makefile.in: New #defines and friends for Thread.h. * Makefile.in: New #defines and friends for Thread.h. * posix-threads.cc: (struct starter): Remove `object'. (_Jv_CondWait): Use interruptable condition variables and new recursive mutexes. New return codes on interrupt or non-ownership of mutex. (_Jv_CondNotify): Ditto. (_Jv_CondNotifyAll): Ditto. (_Jv_ThreadInterrupt): Set thread interrupt flag directly. Interrupt the target thread by signaling its wait condition. (_Jv_ThreadInitData): Set `thread_obj' in the thread data struct, not the starter struct. Initialize wait_mutex and wait_cond. (_Jv_MutexLock): New recursive mutex implementation. Moved from posix-threads.h. (_Jv_MutexUnlock): Ditto. (really_start): Set info->data->thread from pthread_self() to work around a race condition. Destroy wait_mutex and wait_cond when run() returns. * java/lang/Thread.java: (isInterrupted_): Renamed to overloaded `isInterrupted(boolean)'. Clear interrupted flag if clear_flag is set. startable_flag: New private field. (Thread): Initialize `startable_flag'. (toString): Check for null thread group. * java/lang/natThread.cc: (struct natThread): New fields `join_mutex', `join_cond'. Removed fields `joiner', `next'. (class locker): Removed. (initialize_native): Initialize `join_cond' and `join_mutex'. (interrupt): Now just calls _Jv_ThreadInterrupt(). (join): Simplified. Just wait on the target thread's join condition. (finish_): Remove join list code. Unset thread group. Signal potential joiners by notifying the dying threads join_cond. (start): Check for illegal restarts. * java/lang/natObject.cc: Check for return value of _Jv_CondWait and act appropriatly. * include/posix-threads.h: Remove all HAVE_RECURSIVE_MUTEX related #defines and #ifdefs. (struct _Jv_Thread_t): New fields `thread_obj', `wait_cond', `wait_mutex', `next'. (struct _Jv_ConditionVariable_t): Define as a struct instead of directly mapping to pthread_cond_t. (struct _Jv_Mutex_t): New recursive implementation. (_Jv_PthreadCheckMonitor): Reimplemented. Simple `owner' check. _Jv_HaveCondDestroy: Never define this for posix-threads. (_Jv_CondNotify): Remove inline implementation(s), prototype instead. (_Jv_CondNotifyAll): Ditto. (_Jv_MutexLock): Ditto. (_Jv_MutexUnlock): Ditto. (_Jv_MutexInit): Changed to reflect new mutex implementation. (_Jv_MutexDestroy): Ditto. (_Jv_CondDestroy): Removed. (_Jv_PthreadGetMutex): Removed. * include/win32-threads.h: (_Jv_CondNotify): Guess _JV_NOT_OWNER on an error. Add a FIXME about this. (_Jv_CondNotifyAll): Ditto. * win32-threads.cc: (_Jv_CondWait): Return 0 on a timeout. Guess _JV_NOT_OWNER on other errors. Add FIXME. From-SVN: r32773
2000-03-28 04:22:24 +02:00
inline void
1999-04-07 16:42:40 +02:00
_Jv_MutexDestroy (_Jv_Mutex_t *mu)
{
Makefile.in: New #defines and friends for Thread.h. * Makefile.in: New #defines and friends for Thread.h. * posix-threads.cc: (struct starter): Remove `object'. (_Jv_CondWait): Use interruptable condition variables and new recursive mutexes. New return codes on interrupt or non-ownership of mutex. (_Jv_CondNotify): Ditto. (_Jv_CondNotifyAll): Ditto. (_Jv_ThreadInterrupt): Set thread interrupt flag directly. Interrupt the target thread by signaling its wait condition. (_Jv_ThreadInitData): Set `thread_obj' in the thread data struct, not the starter struct. Initialize wait_mutex and wait_cond. (_Jv_MutexLock): New recursive mutex implementation. Moved from posix-threads.h. (_Jv_MutexUnlock): Ditto. (really_start): Set info->data->thread from pthread_self() to work around a race condition. Destroy wait_mutex and wait_cond when run() returns. * java/lang/Thread.java: (isInterrupted_): Renamed to overloaded `isInterrupted(boolean)'. Clear interrupted flag if clear_flag is set. startable_flag: New private field. (Thread): Initialize `startable_flag'. (toString): Check for null thread group. * java/lang/natThread.cc: (struct natThread): New fields `join_mutex', `join_cond'. Removed fields `joiner', `next'. (class locker): Removed. (initialize_native): Initialize `join_cond' and `join_mutex'. (interrupt): Now just calls _Jv_ThreadInterrupt(). (join): Simplified. Just wait on the target thread's join condition. (finish_): Remove join list code. Unset thread group. Signal potential joiners by notifying the dying threads join_cond. (start): Check for illegal restarts. * java/lang/natObject.cc: Check for return value of _Jv_CondWait and act appropriatly. * include/posix-threads.h: Remove all HAVE_RECURSIVE_MUTEX related #defines and #ifdefs. (struct _Jv_Thread_t): New fields `thread_obj', `wait_cond', `wait_mutex', `next'. (struct _Jv_ConditionVariable_t): Define as a struct instead of directly mapping to pthread_cond_t. (struct _Jv_Mutex_t): New recursive implementation. (_Jv_PthreadCheckMonitor): Reimplemented. Simple `owner' check. _Jv_HaveCondDestroy: Never define this for posix-threads. (_Jv_CondNotify): Remove inline implementation(s), prototype instead. (_Jv_CondNotifyAll): Ditto. (_Jv_MutexLock): Ditto. (_Jv_MutexUnlock): Ditto. (_Jv_MutexInit): Changed to reflect new mutex implementation. (_Jv_MutexDestroy): Ditto. (_Jv_CondDestroy): Removed. (_Jv_PthreadGetMutex): Removed. * include/win32-threads.h: (_Jv_CondNotify): Guess _JV_NOT_OWNER on an error. Add a FIXME about this. (_Jv_CondNotifyAll): Ditto. * win32-threads.cc: (_Jv_CondWait): Return 0 on a timeout. Guess _JV_NOT_OWNER on other errors. Add FIXME. From-SVN: r32773
2000-03-28 04:22:24 +02:00
pthread_mutex_destroy (&mu->mutex);
1999-04-07 16:42:40 +02:00
}
#endif /* LINUX_THREADS */
//
// Thread creation and manipulation.
//
void _Jv_InitThreads (void);
_Jv_Thread_t *_Jv_ThreadInitData (java::lang::Thread *thread);
void _Jv_ThreadDestroyData (_Jv_Thread_t *data);
1999-04-07 16:42:40 +02:00
inline java::lang::Thread *
_Jv_ThreadCurrent (void)
{
extern pthread_key_t _Jv_ThreadKey;
return (java::lang::Thread *) pthread_getspecific (_Jv_ThreadKey);
}
[multiple changes] 2001-05-23 Tom Tromey <tromey@redhat.com> * posix-threads.cc (_Jv_self_cache): Renamed from self_cache. * gcj/Makefile.in: Rebuilt. * gcj/Makefile.am (gcj_HEADERS): Added libgcj-config.h. * gcj/javaprims.h: Include gcj/libgcj-config.h. * gcj/libgcj-config.h.in: New file. * libgcj.spec.in (*jc1): Added @HASH_SYNC_SPEC@. * configure: Rebuilt. * configure.in: Enable hash synchronization by default on some platforms. (HASH_SYNC_SPEC): New subst. (AC_CONFIG_HEADER): Added gcj/libgcj-config.h. Correctly use `test -z' instead of `test -n' in a couple places. (JV_HASH_SYNCHRONIZATION): Use AC_DEFINE; don't add to LIBGCJ_CXXFLAGS. * configure.host (enable_java_net_default): Initialize. (enable_hash_synchronization_default): New variable. 2001-05-23 Hans Boehm <Hans_Boehm@hp.com> * boehm.cc (_Jv_MarkObj): Don't mark sync_info when hash synchronization in use. (_Jv_MarkArray): Likewise. (_Jv_AllocBytes): Don't check return result. (handle_out_of_memory): New function. (_Jv_InitGC): Set GC_oom_fn. (trace_one_vtable): New global. (_Jv_AllocTraceOne): New function. * configure.in: Added --enable-hash-synchronization. * defineclass.cc, prims.cc, resolve.cc, java/lang/natString.cc, java/net/natInetAddress.cc: Remove _Jv_AllocBytesChecked. * nogc.cc (_Jv_AllocObj): Throw out-of-memory. (_Jv_AllocArray): Likewise. (_Jv_AllocBytes): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_AllocTraceOne): Likewise. * posix-threads.cc (_Jv_ThreadRegister): Handle slow pthread_self(). (self_cache): New global. (_Jv_ThreadSelf_out_of_line): New function. * prims.cc (_Jv_AllocBytesChecked): Removed. (_Jv_ThrowNoMemory): New function. (_Jv_AllocObject): Don't check for null return from allocator. (_Jv_NewObjectArray): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_NewPrimArray): Allocate pointer-free object if possible. * include/javaprims.h (_Jv_AllocPtrFreeObject): Declare. (_Jv_MonitorEnter, _Jv_MonitorExit): Don't return value. * include/boehm-gc.h (_Jv_AllocObj): Define. (_Jv_AllocPtrFreeObj): Define. * include/jvm.h (_Jv_AllocPtrFreeObj): Declare. (_Jv_ThrowNoMemory): Declare. (_Jv_AllocTraceOne): Declare. (_Jv_AllocBytesChecked): Removed. * include/posix-threads.h (_Jv_MutexInit, _Jv_MutexLock, _Jv_MutexUnlock): Handle LOCK_DEBUG. (_Jv_ThreadSelf): Handle case where system pthread_self() is slow. * java/lang/Class.h (Class): Declare _Jv_AllocPtrFreeObj as friend. * java/lang/Object.h (sync_info): Conditional upon presence of hash synchronization. * java/lang/natObject.cc: Much new code to handle thin locks and hash synchronization. * java/lang/natString.cc (_Jv_AllocString): Allocate pointer-free object if possible. From-SVN: r42519
2001-05-24 07:40:37 +02:00
#ifdef JV_HASH_SYNCHRONIZATION
// Should be specialized to just load the "current thread" register
// on platforms that support it. Speed is of the essence. The value
// of the descriptor is not, so long as there is a one-to-one correspondence
// to threads.
#ifdef __ia64__
typedef size_t _Jv_ThreadId_t;
register size_t _Jv_self __asm__("r13");
// For linux_threads this is really a pointer to its thread data
// structure. We treat it as opaque. That should also work
// on other operating systems that follow the ABI standard.
// This should become the prototype for machines that maintain a thread
// pointer in a register.
inline _Jv_ThreadId_t
_Jv_ThreadSelf (void)
{
return _Jv_self;
}
#define JV_SELF_DEFINED
#endif /* __ia64__ */
#ifdef __alpha__
typedef void *_Jv_ThreadId_t;
inline _Jv_ThreadId_t
_Jv_ThreadSelf (void)
{
return __builtin_thread_pointer ();
}
#define JV_SELF_DEFINED
#endif /* __alpha__ */
[multiple changes] 2001-05-23 Tom Tromey <tromey@redhat.com> * posix-threads.cc (_Jv_self_cache): Renamed from self_cache. * gcj/Makefile.in: Rebuilt. * gcj/Makefile.am (gcj_HEADERS): Added libgcj-config.h. * gcj/javaprims.h: Include gcj/libgcj-config.h. * gcj/libgcj-config.h.in: New file. * libgcj.spec.in (*jc1): Added @HASH_SYNC_SPEC@. * configure: Rebuilt. * configure.in: Enable hash synchronization by default on some platforms. (HASH_SYNC_SPEC): New subst. (AC_CONFIG_HEADER): Added gcj/libgcj-config.h. Correctly use `test -z' instead of `test -n' in a couple places. (JV_HASH_SYNCHRONIZATION): Use AC_DEFINE; don't add to LIBGCJ_CXXFLAGS. * configure.host (enable_java_net_default): Initialize. (enable_hash_synchronization_default): New variable. 2001-05-23 Hans Boehm <Hans_Boehm@hp.com> * boehm.cc (_Jv_MarkObj): Don't mark sync_info when hash synchronization in use. (_Jv_MarkArray): Likewise. (_Jv_AllocBytes): Don't check return result. (handle_out_of_memory): New function. (_Jv_InitGC): Set GC_oom_fn. (trace_one_vtable): New global. (_Jv_AllocTraceOne): New function. * configure.in: Added --enable-hash-synchronization. * defineclass.cc, prims.cc, resolve.cc, java/lang/natString.cc, java/net/natInetAddress.cc: Remove _Jv_AllocBytesChecked. * nogc.cc (_Jv_AllocObj): Throw out-of-memory. (_Jv_AllocArray): Likewise. (_Jv_AllocBytes): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_AllocTraceOne): Likewise. * posix-threads.cc (_Jv_ThreadRegister): Handle slow pthread_self(). (self_cache): New global. (_Jv_ThreadSelf_out_of_line): New function. * prims.cc (_Jv_AllocBytesChecked): Removed. (_Jv_ThrowNoMemory): New function. (_Jv_AllocObject): Don't check for null return from allocator. (_Jv_NewObjectArray): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_NewPrimArray): Allocate pointer-free object if possible. * include/javaprims.h (_Jv_AllocPtrFreeObject): Declare. (_Jv_MonitorEnter, _Jv_MonitorExit): Don't return value. * include/boehm-gc.h (_Jv_AllocObj): Define. (_Jv_AllocPtrFreeObj): Define. * include/jvm.h (_Jv_AllocPtrFreeObj): Declare. (_Jv_ThrowNoMemory): Declare. (_Jv_AllocTraceOne): Declare. (_Jv_AllocBytesChecked): Removed. * include/posix-threads.h (_Jv_MutexInit, _Jv_MutexLock, _Jv_MutexUnlock): Handle LOCK_DEBUG. (_Jv_ThreadSelf): Handle case where system pthread_self() is slow. * java/lang/Class.h (Class): Declare _Jv_AllocPtrFreeObj as friend. * java/lang/Object.h (sync_info): Conditional upon presence of hash synchronization. * java/lang/natObject.cc: Much new code to handle thin locks and hash synchronization. * java/lang/natString.cc (_Jv_AllocString): Allocate pointer-free object if possible. From-SVN: r42519
2001-05-24 07:40:37 +02:00
#if defined(SLOW_PTHREAD_SELF)
#include "sysdep/locks.h"
[multiple changes] 2001-05-23 Tom Tromey <tromey@redhat.com> * posix-threads.cc (_Jv_self_cache): Renamed from self_cache. * gcj/Makefile.in: Rebuilt. * gcj/Makefile.am (gcj_HEADERS): Added libgcj-config.h. * gcj/javaprims.h: Include gcj/libgcj-config.h. * gcj/libgcj-config.h.in: New file. * libgcj.spec.in (*jc1): Added @HASH_SYNC_SPEC@. * configure: Rebuilt. * configure.in: Enable hash synchronization by default on some platforms. (HASH_SYNC_SPEC): New subst. (AC_CONFIG_HEADER): Added gcj/libgcj-config.h. Correctly use `test -z' instead of `test -n' in a couple places. (JV_HASH_SYNCHRONIZATION): Use AC_DEFINE; don't add to LIBGCJ_CXXFLAGS. * configure.host (enable_java_net_default): Initialize. (enable_hash_synchronization_default): New variable. 2001-05-23 Hans Boehm <Hans_Boehm@hp.com> * boehm.cc (_Jv_MarkObj): Don't mark sync_info when hash synchronization in use. (_Jv_MarkArray): Likewise. (_Jv_AllocBytes): Don't check return result. (handle_out_of_memory): New function. (_Jv_InitGC): Set GC_oom_fn. (trace_one_vtable): New global. (_Jv_AllocTraceOne): New function. * configure.in: Added --enable-hash-synchronization. * defineclass.cc, prims.cc, resolve.cc, java/lang/natString.cc, java/net/natInetAddress.cc: Remove _Jv_AllocBytesChecked. * nogc.cc (_Jv_AllocObj): Throw out-of-memory. (_Jv_AllocArray): Likewise. (_Jv_AllocBytes): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_AllocTraceOne): Likewise. * posix-threads.cc (_Jv_ThreadRegister): Handle slow pthread_self(). (self_cache): New global. (_Jv_ThreadSelf_out_of_line): New function. * prims.cc (_Jv_AllocBytesChecked): Removed. (_Jv_ThrowNoMemory): New function. (_Jv_AllocObject): Don't check for null return from allocator. (_Jv_NewObjectArray): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_NewPrimArray): Allocate pointer-free object if possible. * include/javaprims.h (_Jv_AllocPtrFreeObject): Declare. (_Jv_MonitorEnter, _Jv_MonitorExit): Don't return value. * include/boehm-gc.h (_Jv_AllocObj): Define. (_Jv_AllocPtrFreeObj): Define. * include/jvm.h (_Jv_AllocPtrFreeObj): Declare. (_Jv_ThrowNoMemory): Declare. (_Jv_AllocTraceOne): Declare. (_Jv_AllocBytesChecked): Removed. * include/posix-threads.h (_Jv_MutexInit, _Jv_MutexLock, _Jv_MutexUnlock): Handle LOCK_DEBUG. (_Jv_ThreadSelf): Handle case where system pthread_self() is slow. * java/lang/Class.h (Class): Declare _Jv_AllocPtrFreeObj as friend. * java/lang/Object.h (sync_info): Conditional upon presence of hash synchronization. * java/lang/natObject.cc: Much new code to handle thin locks and hash synchronization. * java/lang/natString.cc (_Jv_AllocString): Allocate pointer-free object if possible. From-SVN: r42519
2001-05-24 07:40:37 +02:00
typedef pthread_t _Jv_ThreadId_t;
// E.g. on X86 Linux, pthread_self() is too slow for our purpose.
// Instead we maintain a cache based on the current sp value.
// This is similar to what's done for thread local allocation in the
// GC, only far simpler.
// This code should probably go away when Linux/X86 starts using a
// segment register to hold the thread id.
# define LOG_THREAD_SPACING 12
// If two thread pointer values are closer than
// 1 << LOG_THREAD_SPACING, we assume they belong
// to the same thread.
# define SELF_CACHE_SIZE 1024
# define SC_INDEX(sp) (((unsigned long)(sp) >> 19) & (SELF_CACHE_SIZE-1))
// Mapping from sp value to cache index.
// Note that this is not in any real sense a hash
// function, since we need to be able to clear
// all possibly matching slots on thread startup.
// Thus all entries that might correspond to
// a given thread are intentionally contiguous.
// Works well with anything that allocates at least
// 512KB stacks.
# define SC_CLEAR_MIN (-16) // When starting a new thread, we clear
# define SC_CLEAR_MAX 0 // all self cache entries between
// SC_INDEX(sp)+SC_CLEAR_MIN and
// SC_INDEX(sp)+SC_CLEAR_MAX to ensure
// we never see stale values. The
// current values assume a downward
// growing stack of size <= 7.5 MB.
# define BAD_HIGH_SP_VALUE ((size_t)(-1))
extern volatile
struct self_cache_entry {
size_t high_sp_bits; // sp value >> LOG_THREAD_SPACING
pthread_t self; // Corresponding thread
} _Jv_self_cache[];
void _Jv_Self_Cache_Init();
_Jv_ThreadId_t
_Jv_ThreadSelf_out_of_line(volatile self_cache_entry *sce,
size_t high_sp_bits);
inline _Jv_ThreadId_t
_Jv_ThreadSelf (void)
{
int dummy;
size_t sp = (size_t)(&dummy);
unsigned h = SC_INDEX(sp);
volatile self_cache_entry *sce = _Jv_self_cache + h;
pthread_t candidate_self = sce -> self; // Read must precede following one.
read_barrier();
[multiple changes] 2001-05-23 Tom Tromey <tromey@redhat.com> * posix-threads.cc (_Jv_self_cache): Renamed from self_cache. * gcj/Makefile.in: Rebuilt. * gcj/Makefile.am (gcj_HEADERS): Added libgcj-config.h. * gcj/javaprims.h: Include gcj/libgcj-config.h. * gcj/libgcj-config.h.in: New file. * libgcj.spec.in (*jc1): Added @HASH_SYNC_SPEC@. * configure: Rebuilt. * configure.in: Enable hash synchronization by default on some platforms. (HASH_SYNC_SPEC): New subst. (AC_CONFIG_HEADER): Added gcj/libgcj-config.h. Correctly use `test -z' instead of `test -n' in a couple places. (JV_HASH_SYNCHRONIZATION): Use AC_DEFINE; don't add to LIBGCJ_CXXFLAGS. * configure.host (enable_java_net_default): Initialize. (enable_hash_synchronization_default): New variable. 2001-05-23 Hans Boehm <Hans_Boehm@hp.com> * boehm.cc (_Jv_MarkObj): Don't mark sync_info when hash synchronization in use. (_Jv_MarkArray): Likewise. (_Jv_AllocBytes): Don't check return result. (handle_out_of_memory): New function. (_Jv_InitGC): Set GC_oom_fn. (trace_one_vtable): New global. (_Jv_AllocTraceOne): New function. * configure.in: Added --enable-hash-synchronization. * defineclass.cc, prims.cc, resolve.cc, java/lang/natString.cc, java/net/natInetAddress.cc: Remove _Jv_AllocBytesChecked. * nogc.cc (_Jv_AllocObj): Throw out-of-memory. (_Jv_AllocArray): Likewise. (_Jv_AllocBytes): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_AllocTraceOne): Likewise. * posix-threads.cc (_Jv_ThreadRegister): Handle slow pthread_self(). (self_cache): New global. (_Jv_ThreadSelf_out_of_line): New function. * prims.cc (_Jv_AllocBytesChecked): Removed. (_Jv_ThrowNoMemory): New function. (_Jv_AllocObject): Don't check for null return from allocator. (_Jv_NewObjectArray): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_NewPrimArray): Allocate pointer-free object if possible. * include/javaprims.h (_Jv_AllocPtrFreeObject): Declare. (_Jv_MonitorEnter, _Jv_MonitorExit): Don't return value. * include/boehm-gc.h (_Jv_AllocObj): Define. (_Jv_AllocPtrFreeObj): Define. * include/jvm.h (_Jv_AllocPtrFreeObj): Declare. (_Jv_ThrowNoMemory): Declare. (_Jv_AllocTraceOne): Declare. (_Jv_AllocBytesChecked): Removed. * include/posix-threads.h (_Jv_MutexInit, _Jv_MutexLock, _Jv_MutexUnlock): Handle LOCK_DEBUG. (_Jv_ThreadSelf): Handle case where system pthread_self() is slow. * java/lang/Class.h (Class): Declare _Jv_AllocPtrFreeObj as friend. * java/lang/Object.h (sync_info): Conditional upon presence of hash synchronization. * java/lang/natObject.cc: Much new code to handle thin locks and hash synchronization. * java/lang/natString.cc (_Jv_AllocString): Allocate pointer-free object if possible. From-SVN: r42519
2001-05-24 07:40:37 +02:00
if (sce -> high_sp_bits == sp >> LOG_THREAD_SPACING)
{
// The sce -> self value we read must be valid. An intervening
// cache replacement by another thread would have first replaced
// high_sp_bits by something else, and it can't possibly change
// back without our intervention.
return candidate_self;
}
else
return _Jv_ThreadSelf_out_of_line(sce, sp >> LOG_THREAD_SPACING);
}
#define JV_SELF_DEFINED
#endif /* SLOW_PTHREAD_SELF */
#ifndef JV_SELF_DEFINED /* If all else fails, call pthread_self directly */
typedef pthread_t _Jv_ThreadId_t;
inline _Jv_ThreadId_t
_Jv_ThreadSelf (void)
{
return pthread_self();
}
#endif /* !JV_SELF_DEFINED */
#endif /* JV_HASH_SYNCHRONIZATION */
inline _Jv_Thread_t *
_Jv_ThreadCurrentData (void)
{
extern pthread_key_t _Jv_ThreadDataKey;
return (_Jv_Thread_t *) pthread_getspecific (_Jv_ThreadDataKey);
}
1999-04-07 16:42:40 +02:00
inline void
_Jv_ThreadYield (void)
{
#ifdef HAVE_SCHED_YIELD
sched_yield ();
#endif /* HAVE_SCHED_YIELD */
}
void _Jv_ThreadRegister (_Jv_Thread_t *data);
void _Jv_ThreadUnRegister ();
1999-04-07 16:42:40 +02:00
void _Jv_ThreadSetPriority (_Jv_Thread_t *data, jint prio);
void _Jv_ThreadStart (java::lang::Thread *thread, _Jv_Thread_t *data,
_Jv_ThreadStartFunc *meth);
void _Jv_ThreadWait (void);
void _Jv_ThreadInterrupt (_Jv_Thread_t *data);
// park() / unpark() support
struct ParkHelper
{
volatile obj_addr_t permit;
pthread_mutex_t mutex;
pthread_cond_t cond;
void init ();
void deactivate ();
void destroy ();
void park (jboolean isAbsolute, jlong time);
void unpark ();
};
inline void
ParkHelper::destroy ()
{
pthread_mutex_destroy (&mutex);
pthread_cond_destroy (&cond);
}
1999-04-07 16:42:40 +02:00
#endif /* __JV_POSIX_THREADS__ */