126 lines
3.3 KiB
C++
126 lines
3.3 KiB
C++
// win32.h -- Helper functions for Microsoft-flavored OSs.
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/* Copyright (C) 2002, 2003 Free Software Foundation
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This file is part of libgcj.
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This software is copyrighted work licensed under the terms of the
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Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
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details. */
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#ifndef __JV_WIN32_H__
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#define __JV_WIN32_H__
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#undef WIN32_LEAN_AND_MEAN
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#undef STRICT
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#include <ws2tcpip.h>
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#include <gcj/cni.h>
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#include <jvm.h>
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#include <java/util/Properties.h>
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#include <io.h>
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// Prefix and suffix for shared libraries.
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#define _Jv_platform_solib_prefix ""
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#define _Jv_platform_solib_suffix ".dll"
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// Separator for file name components.
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#define _Jv_platform_file_separator ((jchar) '\\')
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// Separator for path components.
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#define _Jv_platform_path_separator ((jchar) ';')
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// List of names for `JNI_OnLoad'. On Win32, JNI_OnLoad is an
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// "stdcall" function taking two pointers (8 bytes) as arguments. It
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// could also have been exported as "JNI_OnLoad@8" (MinGW) or
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// "_JNI_OnLoad@8" (MSVC).
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#define _Jv_platform_onload_names \
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{ "JNI_OnLoad", "JNI_OnLoad@8", "_JNI_OnLoad@8", NULL }
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// Type of libffi ABI used by JNICALL methods. NOTE: This must agree
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// with the JNICALL definition in jni.h
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#define _Jv_platform_ffi_abi FFI_STDCALL
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/* Useful helper classes and methods. */
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/* A C++ wrapper around a WSAEVENT which closes the event
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in its destructor. If dwSelFlags is non-zero, we also
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issue an WSAEventSelect on the socket descriptor with
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the given flags; this is undone by a corresponding call
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to WSAEventSelect(fd, 0, 0) in our destructor. */
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class WSAEventWrapper
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{
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public:
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WSAEventWrapper(int fd, DWORD dwSelFlags);
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~WSAEventWrapper();
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WSAEVENT getEventHandle()
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{
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return m_hEvent;
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}
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private:
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WSAEVENT m_hEvent;
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int m_fd;
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DWORD m_dwSelFlags;
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};
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// Error string text. The int argument is compatible
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// with both int WSAGetLastError() and DWORD GetLastError()
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// I tried avoiding having to pass the error explicitly, but
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// it didn't work this was invoked with say
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// throw new SomeException(_Jv_WinStrError()).
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extern jstring
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_Jv_WinStrError (LPCTSTR lpszPrologue, int nErrorCode);
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extern jstring
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_Jv_WinStrError (int nErrorCode);
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extern void
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_Jv_ThrowIOException (DWORD dwErrorCode);
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extern void
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_Jv_ThrowIOException ();
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extern void
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_Jv_ThrowSocketException (DWORD dwErrorCode);
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extern void
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_Jv_ThrowSocketException ();
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// Platform implementation
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extern void _Jv_platform_initialize (void);
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extern void _Jv_platform_initProperties (java::util::Properties*);
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extern jlong _Jv_platform_gettimeofday ();
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extern int _Jv_select (int n, fd_set *, fd_set *, fd_set *, struct timeval *);
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extern int _Jv_pipe (int filedes[2]);
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inline void
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_Jv_platform_close_on_exec (jint)
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{
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// Ignore.
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}
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#ifdef JV_HASH_SYNCHRONIZATION
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/* Suspends the execution of the current thread for the specified
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number of microseconds. Tries to emulate the behaviour of usleep()
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on UNIX and provides a granularity of 1 millisecond. */
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inline void
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_Jv_platform_usleep (unsigned long usecs)
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{
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if (usecs > 0UL)
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{
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unsigned long millis = ((usecs + 999UL) / 1000UL);
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Sleep (millis);
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}
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}
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#endif /* JV_HASH_SYNCHRONIZATION */
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/* Store up to SIZE return address of the current program state in
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ARRAY and return the exact number of values stored. */
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extern int backtrace (void **__array, int __size);
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#endif /* __JV_WIN32_H__ */
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