644 lines
21 KiB
C
644 lines
21 KiB
C
#if defined(GC_WIN32_THREADS)
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#include "private/gc_priv.h"
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#if 0
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#define STRICT
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#include <windows.h>
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#endif
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#define MAX_THREADS 64
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struct thread_entry {
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LONG in_use;
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DWORD id;
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HANDLE handle;
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void *stack; /* The cold end of the stack. */
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/* 0 ==> entry not valid. */
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/* !in_use ==> stack == 0 */
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CONTEXT context;
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GC_bool suspended;
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};
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volatile GC_bool GC_please_stop = FALSE;
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volatile struct thread_entry thread_table[MAX_THREADS];
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void GC_push_thread_structures GC_PROTO((void))
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{
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/* Unlike the other threads implementations, the thread table here */
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/* contains no pointers to the collectable heap. Thus we have */
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/* no private structures we need to preserve. */
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}
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void GC_stop_world()
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{
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DWORD thread_id = GetCurrentThreadId();
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int i;
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GC_please_stop = TRUE;
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for (i = 0; i < MAX_THREADS; i++)
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if (thread_table[i].stack != 0
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&& thread_table[i].id != thread_id) {
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# ifdef MSWINCE
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/* SuspendThread will fail if thread is running kernel code */
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while (SuspendThread(thread_table[i].handle) == (DWORD)-1)
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Sleep(10);
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# else
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/* Apparently the Windows 95 GetOpenFileName call creates */
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/* a thread that does not properly get cleaned up, and */
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/* SuspendThread on its descriptor may provoke a crash. */
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/* This reduces the probability of that event, though it still */
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/* appears there's a race here. */
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DWORD exitCode;
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if (GetExitCodeThread(thread_table[i].handle,&exitCode) &&
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exitCode != STILL_ACTIVE) {
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thread_table[i].stack = 0;
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thread_table[i].in_use = FALSE;
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CloseHandle(thread_table[i].handle);
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BZERO((void *)(&thread_table[i].context), sizeof(CONTEXT));
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continue;
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}
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if (SuspendThread(thread_table[i].handle) == (DWORD)-1)
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ABORT("SuspendThread failed");
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# endif
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thread_table[i].suspended = TRUE;
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}
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}
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void GC_start_world()
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{
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DWORD thread_id = GetCurrentThreadId();
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int i;
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for (i = 0; i < MAX_THREADS; i++)
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if (thread_table[i].stack != 0 && thread_table[i].suspended
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&& thread_table[i].id != thread_id) {
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if (ResumeThread(thread_table[i].handle) == (DWORD)-1)
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ABORT("ResumeThread failed");
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thread_table[i].suspended = FALSE;
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}
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GC_please_stop = FALSE;
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}
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# ifdef _MSC_VER
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# pragma warning(disable:4715)
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# endif
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ptr_t GC_current_stackbottom()
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{
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DWORD thread_id = GetCurrentThreadId();
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int i;
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for (i = 0; i < MAX_THREADS; i++)
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if (thread_table[i].stack && thread_table[i].id == thread_id)
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return thread_table[i].stack;
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ABORT("no thread table entry for current thread");
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}
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# ifdef _MSC_VER
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# pragma warning(default:4715)
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# endif
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# ifdef MSWINCE
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/* The VirtualQuery calls below won't work properly on WinCE, but */
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/* since each stack is restricted to an aligned 64K region of */
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/* virtual memory we can just take the next lowest multiple of 64K. */
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# define GC_get_lo_stack_addr(s) \
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((ptr_t)(((DWORD)(s) - 1) & 0xFFFF0000))
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# else
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static ptr_t GC_get_lo_stack_addr(ptr_t s)
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{
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ptr_t bottom;
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MEMORY_BASIC_INFORMATION info;
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VirtualQuery(s, &info, sizeof(info));
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do {
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bottom = info.BaseAddress;
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VirtualQuery(bottom - 1, &info, sizeof(info));
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} while ((info.Protect & PAGE_READWRITE)
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&& !(info.Protect & PAGE_GUARD));
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return(bottom);
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}
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# endif
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void GC_push_all_stacks()
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{
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DWORD thread_id = GetCurrentThreadId();
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int i;
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for (i = 0; i < MAX_THREADS; i++)
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if (thread_table[i].stack) {
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ptr_t bottom = GC_get_lo_stack_addr(thread_table[i].stack);
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if (thread_table[i].id == thread_id)
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GC_push_all_stack((ptr_t)&i, thread_table[i].stack);
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else {
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thread_table[i].context.ContextFlags
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= (CONTEXT_INTEGER|CONTEXT_CONTROL);
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if (!GetThreadContext(thread_table[i].handle,
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/* cast away volatile qualifier */
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(LPCONTEXT)&thread_table[i].context))
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ABORT("GetThreadContext failed");
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# ifdef I386
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if (thread_table[i].context.Esp >= (DWORD)thread_table[i].stack
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|| thread_table[i].context.Esp < (DWORD)bottom)
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ABORT("Thread stack pointer out of range");
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GC_push_one ((word) thread_table[i].context.Edi);
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GC_push_one ((word) thread_table[i].context.Esi);
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GC_push_one ((word) thread_table[i].context.Ebp);
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GC_push_one ((word) thread_table[i].context.Ebx);
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GC_push_one ((word) thread_table[i].context.Edx);
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GC_push_one ((word) thread_table[i].context.Ecx);
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GC_push_one ((word) thread_table[i].context.Eax);
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if (thread_table[i].context.Esp >= (DWORD)thread_table[i].stack
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|| thread_table[i].context.Esp < (DWORD)bottom) {
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WARN("Thread stack pointer 0x%lx out of range, pushing everything",
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thread_table[i].context.Esp);
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GC_push_all_stack((char *) bottom, thread_table[i].stack);
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} else {
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GC_push_all_stack((char *) thread_table[i].context.Esp,
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thread_table[i].stack);
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}
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# else
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# ifdef ARM32
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if (thread_table[i].context.Sp >= (DWORD)thread_table[i].stack
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|| thread_table[i].context.Sp < (DWORD)bottom)
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ABORT("Thread stack pointer out of range");
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GC_push_one ((word) thread_table[i].context.R0);
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GC_push_one ((word) thread_table[i].context.R1);
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GC_push_one ((word) thread_table[i].context.R2);
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GC_push_one ((word) thread_table[i].context.R3);
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GC_push_one ((word) thread_table[i].context.R4);
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GC_push_one ((word) thread_table[i].context.R5);
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GC_push_one ((word) thread_table[i].context.R6);
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GC_push_one ((word) thread_table[i].context.R7);
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GC_push_one ((word) thread_table[i].context.R8);
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GC_push_one ((word) thread_table[i].context.R9);
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GC_push_one ((word) thread_table[i].context.R10);
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GC_push_one ((word) thread_table[i].context.R11);
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GC_push_one ((word) thread_table[i].context.R12);
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GC_push_all_stack((char *) thread_table[i].context.Sp,
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thread_table[i].stack);
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# else
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# ifdef SHx
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if (thread_table[i].context.R15 >= (DWORD)thread_table[i].stack
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|| thread_table[i].context.R15 < (DWORD)bottom)
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ABORT("Thread stack pointer out of range");
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GC_push_one ((word) thread_table[i].context.R0);
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GC_push_one ((word) thread_table[i].context.R1);
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GC_push_one ((word) thread_table[i].context.R2);
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GC_push_one ((word) thread_table[i].context.R3);
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GC_push_one ((word) thread_table[i].context.R4);
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GC_push_one ((word) thread_table[i].context.R5);
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GC_push_one ((word) thread_table[i].context.R6);
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GC_push_one ((word) thread_table[i].context.R7);
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GC_push_one ((word) thread_table[i].context.R8);
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GC_push_one ((word) thread_table[i].context.R9);
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GC_push_one ((word) thread_table[i].context.R10);
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GC_push_one ((word) thread_table[i].context.R11);
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GC_push_one ((word) thread_table[i].context.R12);
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GC_push_one ((word) thread_table[i].context.R13);
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GC_push_one ((word) thread_table[i].context.R14);
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GC_push_all_stack((char *) thread_table[i].context.R15,
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thread_table[i].stack);
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# else
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# ifdef MIPS
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if (thread_table[i].context.IntSp >= (DWORD)thread_table[i].stack
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|| thread_table[i].context.IntSp < (DWORD)bottom)
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ABORT("Thread stack pointer out of range");
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GC_push_one ((word) thread_table[i].context.IntAt);
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GC_push_one ((word) thread_table[i].context.IntV0);
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GC_push_one ((word) thread_table[i].context.IntV1);
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GC_push_one ((word) thread_table[i].context.IntA0);
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GC_push_one ((word) thread_table[i].context.IntA1);
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GC_push_one ((word) thread_table[i].context.IntA2);
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GC_push_one ((word) thread_table[i].context.IntA3);
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GC_push_one ((word) thread_table[i].context.IntT0);
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GC_push_one ((word) thread_table[i].context.IntT1);
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GC_push_one ((word) thread_table[i].context.IntT2);
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GC_push_one ((word) thread_table[i].context.IntT3);
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GC_push_one ((word) thread_table[i].context.IntT4);
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GC_push_one ((word) thread_table[i].context.IntT5);
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GC_push_one ((word) thread_table[i].context.IntT6);
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GC_push_one ((word) thread_table[i].context.IntT7);
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GC_push_one ((word) thread_table[i].context.IntS0);
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GC_push_one ((word) thread_table[i].context.IntS1);
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GC_push_one ((word) thread_table[i].context.IntS2);
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GC_push_one ((word) thread_table[i].context.IntS3);
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GC_push_one ((word) thread_table[i].context.IntS4);
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GC_push_one ((word) thread_table[i].context.IntS5);
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GC_push_one ((word) thread_table[i].context.IntS6);
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GC_push_one ((word) thread_table[i].context.IntS7);
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GC_push_one ((word) thread_table[i].context.IntT8);
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GC_push_one ((word) thread_table[i].context.IntT9);
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GC_push_one ((word) thread_table[i].context.IntK0);
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GC_push_one ((word) thread_table[i].context.IntK1);
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GC_push_one ((word) thread_table[i].context.IntS8);
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GC_push_all_stack((char *) thread_table[i].context.IntSp,
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thread_table[i].stack);
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# else
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# ifdef PPC
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if (thread_table[i].context.Gpr1 >= (DWORD)thread_table[i].stack
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|| thread_table[i].context.Gpr1 < (DWORD)bottom)
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ABORT("Thread stack pointer out of range");
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GC_push_one ((word) thread_table[i].context.Gpr0);
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/* Gpr1 is stack pointer */
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/* Gpr2 is global pointer */
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GC_push_one ((word) thread_table[i].context.Gpr3);
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GC_push_one ((word) thread_table[i].context.Gpr4);
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GC_push_one ((word) thread_table[i].context.Gpr5);
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GC_push_one ((word) thread_table[i].context.Gpr6);
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GC_push_one ((word) thread_table[i].context.Gpr7);
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GC_push_one ((word) thread_table[i].context.Gpr8);
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GC_push_one ((word) thread_table[i].context.Gpr9);
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GC_push_one ((word) thread_table[i].context.Gpr10);
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GC_push_one ((word) thread_table[i].context.Gpr11);
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GC_push_one ((word) thread_table[i].context.Gpr12);
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/* Gpr13 is reserved for the kernel */
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GC_push_one ((word) thread_table[i].context.Gpr14);
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GC_push_one ((word) thread_table[i].context.Gpr15);
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GC_push_one ((word) thread_table[i].context.Gpr16);
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GC_push_one ((word) thread_table[i].context.Gpr17);
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GC_push_one ((word) thread_table[i].context.Gpr18);
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GC_push_one ((word) thread_table[i].context.Gpr19);
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GC_push_one ((word) thread_table[i].context.Gpr20);
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GC_push_one ((word) thread_table[i].context.Gpr21);
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GC_push_one ((word) thread_table[i].context.Gpr22);
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GC_push_one ((word) thread_table[i].context.Gpr23);
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GC_push_one ((word) thread_table[i].context.Gpr24);
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GC_push_one ((word) thread_table[i].context.Gpr25);
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GC_push_one ((word) thread_table[i].context.Gpr26);
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GC_push_one ((word) thread_table[i].context.Gpr27);
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GC_push_one ((word) thread_table[i].context.Gpr28);
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GC_push_one ((word) thread_table[i].context.Gpr29);
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GC_push_one ((word) thread_table[i].context.Gpr30);
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GC_push_one ((word) thread_table[i].context.Gpr31);
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GC_push_all_stack((char *) thread_table[i].context.Gpr1,
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thread_table[i].stack);
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# else
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# ifdef ALPHA
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if (thread_table[i].context.IntSp >= (DWORD)thread_table[i].stack
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|| thread_table[i].context.IntSp < (DWORD)bottom)
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ABORT("Thread stack pointer out of range");
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GC_push_one ((word) thread_table[i].context.IntV0);
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GC_push_one ((word) thread_table[i].context.IntT0);
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GC_push_one ((word) thread_table[i].context.IntT1);
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GC_push_one ((word) thread_table[i].context.IntT2);
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GC_push_one ((word) thread_table[i].context.IntT3);
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GC_push_one ((word) thread_table[i].context.IntT4);
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GC_push_one ((word) thread_table[i].context.IntT5);
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GC_push_one ((word) thread_table[i].context.IntT6);
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GC_push_one ((word) thread_table[i].context.IntT7);
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GC_push_one ((word) thread_table[i].context.IntS0);
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GC_push_one ((word) thread_table[i].context.IntS1);
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GC_push_one ((word) thread_table[i].context.IntS2);
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GC_push_one ((word) thread_table[i].context.IntS3);
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GC_push_one ((word) thread_table[i].context.IntS4);
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GC_push_one ((word) thread_table[i].context.IntS5);
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GC_push_one ((word) thread_table[i].context.IntFp);
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GC_push_one ((word) thread_table[i].context.IntA0);
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GC_push_one ((word) thread_table[i].context.IntA1);
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GC_push_one ((word) thread_table[i].context.IntA2);
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GC_push_one ((word) thread_table[i].context.IntA3);
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GC_push_one ((word) thread_table[i].context.IntA4);
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GC_push_one ((word) thread_table[i].context.IntA5);
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GC_push_one ((word) thread_table[i].context.IntT8);
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GC_push_one ((word) thread_table[i].context.IntT9);
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GC_push_one ((word) thread_table[i].context.IntT10);
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GC_push_one ((word) thread_table[i].context.IntT11);
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GC_push_one ((word) thread_table[i].context.IntT12);
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GC_push_one ((word) thread_table[i].context.IntAt);
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GC_push_all_stack((char *) thread_table[i].context.IntSp,
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thread_table[i].stack);
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# else
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--> architecture not supported
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# endif /* !ALPHA */
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# endif /* !PPC */
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# endif /* !MIPS */
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# endif /* !SHx */
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# endif /* !ARM32 */
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# endif /* !I386 */
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}
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}
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}
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void GC_get_next_stack(char *start, char **lo, char **hi)
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{
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int i;
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# define ADDR_LIMIT (char *)(-1L)
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char * current_min = ADDR_LIMIT;
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for (i = 0; i < MAX_THREADS; i++) {
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char * s = (char *)thread_table[i].stack;
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if (0 != s && s > start && s < current_min) {
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current_min = s;
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}
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}
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*hi = current_min;
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if (current_min == ADDR_LIMIT) {
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*lo = ADDR_LIMIT;
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return;
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}
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*lo = GC_get_lo_stack_addr(current_min);
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if (*lo < start) *lo = start;
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}
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#if !defined(MSWINCE) && !(defined(__MINGW32__) && !defined(_DLL))
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HANDLE WINAPI GC_CreateThread(
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LPSECURITY_ATTRIBUTES lpThreadAttributes,
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DWORD dwStackSize, LPTHREAD_START_ROUTINE lpStartAddress,
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LPVOID lpParameter, DWORD dwCreationFlags, LPDWORD lpThreadId )
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{
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return CreateThread(lpThreadAttributes, dwStackSize, lpStartAddress,
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lpParameter, dwCreationFlags, lpThreadId);
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}
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#else /* !defined(MSWINCE) && !(defined(__MINGW32__) && !defined(_DLL)) */
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typedef struct {
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HANDLE child_ready_h, parent_ready_h;
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volatile struct thread_entry * entry;
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LPTHREAD_START_ROUTINE start;
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LPVOID param;
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} thread_args;
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DWORD WINAPI thread_start(LPVOID arg);
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HANDLE WINAPI GC_CreateThread(
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LPSECURITY_ATTRIBUTES lpThreadAttributes,
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DWORD dwStackSize, LPTHREAD_START_ROUTINE lpStartAddress,
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LPVOID lpParameter, DWORD dwCreationFlags, LPDWORD lpThreadId )
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{
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HANDLE thread_h = NULL;
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HANDLE child_ready_h, parent_ready_h;
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int i;
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thread_args args;
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/* allocate thread slot */
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LOCK();
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for (i = 0; i != MAX_THREADS && thread_table[i].in_use; i++)
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;
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if (i != MAX_THREADS) {
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thread_table[i].in_use = TRUE;
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}
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UNLOCK();
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if (i != MAX_THREADS) {
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/* create unnamed unsignalled events */
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if (child_ready_h = CreateEvent(NULL, FALSE, FALSE, NULL)) {
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if (parent_ready_h = CreateEvent(NULL, FALSE, FALSE, NULL)) {
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/* set up thread arguments */
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args.child_ready_h = child_ready_h;
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args.parent_ready_h = parent_ready_h;
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args.entry = &thread_table[i];
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args.start = lpStartAddress;
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args.param = lpParameter;
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thread_h = CreateThread(lpThreadAttributes,
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dwStackSize, thread_start,
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&args,
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dwCreationFlags & ~CREATE_SUSPENDED,
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lpThreadId);
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if (thread_h) {
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/* fill in ID and handle; tell child this is done */
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thread_table[i].id = *lpThreadId;
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thread_table[i].handle = thread_h;
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SetEvent (parent_ready_h);
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/* wait for child to fill in stack and copy args */
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WaitForSingleObject (child_ready_h, INFINITE);
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/* suspend the child if requested */
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if (dwCreationFlags & CREATE_SUSPENDED)
|
|
SuspendThread (thread_h);
|
|
|
|
/* let child call given function now (or when resumed) */
|
|
SetEvent (parent_ready_h);
|
|
|
|
} else {
|
|
CloseHandle (parent_ready_h);
|
|
}
|
|
}
|
|
}
|
|
|
|
CloseHandle (child_ready_h);
|
|
|
|
if (thread_h == NULL)
|
|
thread_table[i].in_use = FALSE;
|
|
|
|
} else { /* no thread slot found */
|
|
SetLastError (ERROR_TOO_MANY_TCBS);
|
|
}
|
|
|
|
return thread_h;
|
|
}
|
|
|
|
static DWORD WINAPI thread_start(LPVOID arg)
|
|
{
|
|
DWORD ret = 0;
|
|
thread_args args = *(thread_args *)arg;
|
|
|
|
/* wait for parent to fill in ID and handle */
|
|
WaitForSingleObject (args.parent_ready_h, INFINITE);
|
|
ResetEvent (args.parent_ready_h);
|
|
|
|
/* fill in stack; tell parent this is done */
|
|
args.entry->stack = GC_get_stack_base();
|
|
SetEvent (args.child_ready_h);
|
|
|
|
/* wait for parent to tell us to go (in case it needs to suspend us) */
|
|
WaitForSingleObject (args.parent_ready_h, INFINITE);
|
|
CloseHandle (args.parent_ready_h);
|
|
|
|
/* Clear the thread entry even if we exit with an exception. */
|
|
/* This is probably pointless, since an uncaught exception is */
|
|
/* supposed to result in the process being killed. */
|
|
#ifndef __GNUC__
|
|
__try {
|
|
#endif /* __GNUC__ */
|
|
ret = args.start (args.param);
|
|
#ifndef __GNUC__
|
|
} __finally {
|
|
#endif /* __GNUC__ */
|
|
LOCK();
|
|
args.entry->stack = 0;
|
|
args.entry->in_use = FALSE;
|
|
/* cast away volatile qualifier */
|
|
BZERO((void *) &args.entry->context, sizeof(CONTEXT));
|
|
UNLOCK();
|
|
#ifndef __GNUC__
|
|
}
|
|
#endif /* __GNUC__ */
|
|
|
|
return ret;
|
|
}
|
|
#endif /* !defined(MSWINCE) && !(defined(__MINGW32__) && !defined(_DLL)) */
|
|
|
|
#ifdef MSWINCE
|
|
|
|
typedef struct {
|
|
HINSTANCE hInstance;
|
|
HINSTANCE hPrevInstance;
|
|
LPWSTR lpCmdLine;
|
|
int nShowCmd;
|
|
} main_thread_args;
|
|
|
|
DWORD WINAPI main_thread_start(LPVOID arg);
|
|
|
|
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
|
|
LPWSTR lpCmdLine, int nShowCmd)
|
|
{
|
|
DWORD exit_code = 1;
|
|
|
|
main_thread_args args = {
|
|
hInstance, hPrevInstance, lpCmdLine, nShowCmd
|
|
};
|
|
HANDLE thread_h;
|
|
DWORD thread_id;
|
|
|
|
/* initialize everything */
|
|
InitializeCriticalSection(&GC_allocate_ml);
|
|
GC_init();
|
|
|
|
/* start the main thread */
|
|
thread_h = GC_CreateThread(
|
|
NULL, 0, main_thread_start, &args, 0, &thread_id);
|
|
|
|
if (thread_h != NULL)
|
|
{
|
|
WaitForSingleObject (thread_h, INFINITE);
|
|
GetExitCodeThread (thread_h, &exit_code);
|
|
CloseHandle (thread_h);
|
|
}
|
|
|
|
GC_deinit();
|
|
DeleteCriticalSection(&GC_allocate_ml);
|
|
|
|
return (int) exit_code;
|
|
}
|
|
|
|
DWORD WINAPI main_thread_start(LPVOID arg)
|
|
{
|
|
main_thread_args * args = (main_thread_args *) arg;
|
|
|
|
return (DWORD) GC_WinMain (args->hInstance, args->hPrevInstance,
|
|
args->lpCmdLine, args->nShowCmd);
|
|
}
|
|
|
|
# else /* !MSWINCE */
|
|
|
|
LONG WINAPI GC_write_fault_handler(struct _EXCEPTION_POINTERS *exc_info);
|
|
|
|
/*
|
|
* This isn't generally safe, since DllMain is not premptible.
|
|
* If another thread holds the lock while this runs we're in trouble.
|
|
* Pontus Rydin suggests wrapping the thread start routine instead.
|
|
*/
|
|
BOOL WINAPI DllMain(HINSTANCE inst, ULONG reason, LPVOID reserved)
|
|
{
|
|
switch (reason) {
|
|
case DLL_PROCESS_ATTACH:
|
|
InitializeCriticalSection(&GC_allocate_ml);
|
|
GC_init(); /* Force initialization before thread attach. */
|
|
/* fall through */
|
|
case DLL_THREAD_ATTACH:
|
|
{
|
|
int i;
|
|
/* It appears to be unsafe to acquire a lock here, since this */
|
|
/* code is apparently not preeemptible on some systems. */
|
|
/* (This is based on complaints, not on Microsoft's official */
|
|
/* documentation, which says this should perform "only simple */
|
|
/* inititalization tasks".) */
|
|
/* Hence we make do with nonblocking synchronization. */
|
|
|
|
/* The following should be a noop according to the win32 */
|
|
/* documentation. There is empirical evidence that it */
|
|
/* isn't. - HB */
|
|
# ifdef MPROTECT_VDB
|
|
if (GC_incremental) SetUnhandledExceptionFilter(GC_write_fault_handler);
|
|
# endif
|
|
|
|
for (i = 0;
|
|
/* cast away volatile qualifier */
|
|
InterlockedExchange((LPLONG) &thread_table[i].in_use, 1) != 0;
|
|
i++) {
|
|
/* Compare-and-swap would make this cleaner, but that's not */
|
|
/* supported before Windows 98 and NT 4.0. In Windows 2000, */
|
|
/* InterlockedExchange is supposed to be replaced by */
|
|
/* InterlockedExchangePointer, but that's not really what I */
|
|
/* want here. */
|
|
if (i == MAX_THREADS - 1)
|
|
ABORT("too many threads");
|
|
}
|
|
thread_table[i].id = GetCurrentThreadId();
|
|
if (!DuplicateHandle(GetCurrentProcess(),
|
|
GetCurrentThread(),
|
|
GetCurrentProcess(),
|
|
/* cast away volatile qualifier */
|
|
(HANDLE *) &thread_table[i].handle,
|
|
0,
|
|
0,
|
|
DUPLICATE_SAME_ACCESS)) {
|
|
DWORD last_error = GetLastError();
|
|
GC_printf1("Last error code: %lx\n", last_error);
|
|
ABORT("DuplicateHandle failed");
|
|
}
|
|
thread_table[i].stack = GC_get_stack_base();
|
|
/* If this thread is being created while we are trying to stop */
|
|
/* the world, wait here. Hopefully this can't happen on any */
|
|
/* systems that don't allow us to block here. */
|
|
while (GC_please_stop) Sleep(20);
|
|
}
|
|
break;
|
|
case DLL_THREAD_DETACH:
|
|
{
|
|
int i;
|
|
DWORD thread_id = GetCurrentThreadId();
|
|
LOCK();
|
|
for (i = 0;
|
|
i < MAX_THREADS &&
|
|
(thread_table[i].stack == 0 || thread_table[i].id != thread_id);
|
|
i++) {}
|
|
if (i >= MAX_THREADS) {
|
|
WARN("thread %ld not found on detach", (GC_word)thread_id);
|
|
} else {
|
|
thread_table[i].stack = 0;
|
|
thread_table[i].in_use = FALSE;
|
|
CloseHandle(thread_table[i].handle);
|
|
/* cast away volatile qualifier */
|
|
BZERO((void *) &thread_table[i].context, sizeof(CONTEXT));
|
|
}
|
|
UNLOCK();
|
|
}
|
|
break;
|
|
case DLL_PROCESS_DETACH:
|
|
{
|
|
int i;
|
|
|
|
LOCK();
|
|
for (i = 0; i < MAX_THREADS; ++i)
|
|
{
|
|
if (thread_table[i].in_use)
|
|
{
|
|
thread_table[i].stack = 0;
|
|
thread_table[i].in_use = FALSE;
|
|
CloseHandle(thread_table[i].handle);
|
|
BZERO((void *) &thread_table[i].context, sizeof(CONTEXT));
|
|
}
|
|
}
|
|
UNLOCK();
|
|
|
|
GC_deinit();
|
|
DeleteCriticalSection(&GC_allocate_ml);
|
|
}
|
|
break;
|
|
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
# endif /* !MSWINCE */
|
|
|
|
#endif /* GC_WIN32_THREADS */
|