mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
9e66910b3b
We need another native thread to call some unblocking functions which aren't RUBY_UBF_IO or RUBY_UBF_PROCESS. Instead of a permanent thread in <= 2.5, we can now rely on the thread cache feature to perform interrupts. [ruby-core:90865] [Bug #15499] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66708 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
845 lines
19 KiB
C
845 lines
19 KiB
C
/* -*-c-*- */
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/**********************************************************************
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thread_win32.c -
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$Author$
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Copyright (C) 2004-2007 Koichi Sasada
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**********************************************************************/
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#ifdef THREAD_SYSTEM_DEPENDENT_IMPLEMENTATION
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#include <process.h>
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#define TIME_QUANTUM_USEC (10 * 1000)
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#define RB_CONDATTR_CLOCK_MONOTONIC 1 /* no effect */
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#undef Sleep
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#define native_thread_yield() Sleep(0)
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#define unregister_ubf_list(th)
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#define ubf_wakeup_all_threads() do {} while (0)
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#define ubf_threads_empty() (1)
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#define ubf_timer_disarm() do {} while (0)
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#define ubf_list_atfork() do {} while (0)
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static volatile DWORD ruby_native_thread_key = TLS_OUT_OF_INDEXES;
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static int w32_wait_events(HANDLE *events, int count, DWORD timeout, rb_thread_t *th);
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void rb_native_mutex_lock(rb_nativethread_lock_t *lock);
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void rb_native_mutex_unlock(rb_nativethread_lock_t *lock);
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static void
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w32_error(const char *func)
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{
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LPVOID lpMsgBuf;
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DWORD err = GetLastError();
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if (FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
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FORMAT_MESSAGE_FROM_SYSTEM |
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FORMAT_MESSAGE_IGNORE_INSERTS,
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NULL,
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err,
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MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_US),
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(LPTSTR) & lpMsgBuf, 0, NULL) == 0)
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FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
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FORMAT_MESSAGE_FROM_SYSTEM |
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FORMAT_MESSAGE_IGNORE_INSERTS,
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NULL,
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err,
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MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
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(LPTSTR) & lpMsgBuf, 0, NULL);
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rb_bug("%s: %s", func, (char*)lpMsgBuf);
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}
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static int
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w32_mutex_lock(HANDLE lock)
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{
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DWORD result;
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while (1) {
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thread_debug("rb_native_mutex_lock: %p\n", lock);
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result = w32_wait_events(&lock, 1, INFINITE, 0);
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switch (result) {
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case WAIT_OBJECT_0:
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/* get mutex object */
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thread_debug("acquire mutex: %p\n", lock);
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return 0;
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case WAIT_OBJECT_0 + 1:
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/* interrupt */
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errno = EINTR;
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thread_debug("acquire mutex interrupted: %p\n", lock);
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return 0;
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case WAIT_TIMEOUT:
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thread_debug("timeout mutex: %p\n", lock);
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break;
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case WAIT_ABANDONED:
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rb_bug("win32_mutex_lock: WAIT_ABANDONED");
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break;
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default:
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rb_bug("win32_mutex_lock: unknown result (%ld)", result);
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break;
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}
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}
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return 0;
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}
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static HANDLE
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w32_mutex_create(void)
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{
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HANDLE lock = CreateMutex(NULL, FALSE, NULL);
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if (lock == NULL) {
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w32_error("rb_native_mutex_initialize");
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}
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return lock;
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}
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#define GVL_DEBUG 0
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static void
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gvl_acquire(rb_vm_t *vm, rb_thread_t *th)
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{
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w32_mutex_lock(vm->gvl.lock);
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if (GVL_DEBUG) fprintf(stderr, "gvl acquire (%p): acquire\n", th);
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}
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static void
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gvl_release(rb_vm_t *vm)
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{
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ReleaseMutex(vm->gvl.lock);
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}
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static void
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gvl_yield(rb_vm_t *vm, rb_thread_t *th)
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{
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gvl_release(th->vm);
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native_thread_yield();
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gvl_acquire(vm, th);
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}
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static void
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gvl_init(rb_vm_t *vm)
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{
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if (GVL_DEBUG) fprintf(stderr, "gvl init\n");
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vm->gvl.lock = w32_mutex_create();
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}
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static void
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gvl_destroy(rb_vm_t *vm)
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{
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if (GVL_DEBUG) fprintf(stderr, "gvl destroy\n");
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CloseHandle(vm->gvl.lock);
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}
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static rb_thread_t *
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ruby_thread_from_native(void)
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{
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return TlsGetValue(ruby_native_thread_key);
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}
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static int
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ruby_thread_set_native(rb_thread_t *th)
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{
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return TlsSetValue(ruby_native_thread_key, th);
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}
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void
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Init_native_thread(rb_thread_t *th)
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{
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ruby_native_thread_key = TlsAlloc();
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ruby_thread_set_native(th);
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DuplicateHandle(GetCurrentProcess(),
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GetCurrentThread(),
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GetCurrentProcess(),
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&th->thread_id, 0, FALSE, DUPLICATE_SAME_ACCESS);
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th->native_thread_data.interrupt_event = CreateEvent(0, TRUE, FALSE, 0);
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thread_debug("initial thread (th: %p, thid: %p, event: %p)\n",
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th, GET_THREAD()->thread_id,
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th->native_thread_data.interrupt_event);
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}
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static int
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w32_wait_events(HANDLE *events, int count, DWORD timeout, rb_thread_t *th)
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{
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HANDLE *targets = events;
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HANDLE intr;
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const int initcount = count;
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DWORD ret;
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thread_debug(" w32_wait_events events:%p, count:%d, timeout:%ld, th:%p\n",
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events, count, timeout, th);
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if (th && (intr = th->native_thread_data.interrupt_event)) {
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if (ResetEvent(intr) && (!RUBY_VM_INTERRUPTED(th->ec) || SetEvent(intr))) {
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targets = ALLOCA_N(HANDLE, count + 1);
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memcpy(targets, events, sizeof(HANDLE) * count);
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targets[count++] = intr;
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thread_debug(" * handle: %p (count: %d, intr)\n", intr, count);
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}
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else if (intr == th->native_thread_data.interrupt_event) {
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w32_error("w32_wait_events");
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}
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}
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thread_debug(" WaitForMultipleObjects start (count: %d)\n", count);
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ret = WaitForMultipleObjects(count, targets, FALSE, timeout);
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thread_debug(" WaitForMultipleObjects end (ret: %lu)\n", ret);
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if (ret == (DWORD)(WAIT_OBJECT_0 + initcount) && th) {
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errno = EINTR;
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}
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if (ret == WAIT_FAILED && THREAD_DEBUG) {
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int i;
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DWORD dmy;
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for (i = 0; i < count; i++) {
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thread_debug(" * error handle %d - %s\n", i,
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GetHandleInformation(targets[i], &dmy) ? "OK" : "NG");
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}
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}
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return ret;
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}
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static void ubf_handle(void *ptr);
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#define ubf_select ubf_handle
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int
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rb_w32_wait_events_blocking(HANDLE *events, int num, DWORD timeout)
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{
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return w32_wait_events(events, num, timeout, ruby_thread_from_native());
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}
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int
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rb_w32_wait_events(HANDLE *events, int num, DWORD timeout)
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{
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int ret;
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rb_thread_t *th = GET_THREAD();
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BLOCKING_REGION(th, ret = rb_w32_wait_events_blocking(events, num, timeout),
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ubf_handle, ruby_thread_from_native(), FALSE);
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return ret;
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}
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static void
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w32_close_handle(HANDLE handle)
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{
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if (CloseHandle(handle) == 0) {
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w32_error("w32_close_handle");
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}
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}
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static void
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w32_resume_thread(HANDLE handle)
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{
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if (ResumeThread(handle) == (DWORD)-1) {
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w32_error("w32_resume_thread");
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}
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}
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#ifdef _MSC_VER
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#define HAVE__BEGINTHREADEX 1
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#else
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#undef HAVE__BEGINTHREADEX
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#endif
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#ifdef HAVE__BEGINTHREADEX
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#define start_thread (HANDLE)_beginthreadex
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#define thread_errno errno
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typedef unsigned long (__stdcall *w32_thread_start_func)(void*);
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#else
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#define start_thread CreateThread
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#define thread_errno rb_w32_map_errno(GetLastError())
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typedef LPTHREAD_START_ROUTINE w32_thread_start_func;
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#endif
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static HANDLE
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w32_create_thread(DWORD stack_size, w32_thread_start_func func, void *val)
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{
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return start_thread(0, stack_size, func, val, CREATE_SUSPENDED, 0);
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}
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int
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rb_w32_sleep(unsigned long msec)
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{
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return w32_wait_events(0, 0, msec, ruby_thread_from_native());
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}
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int WINAPI
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rb_w32_Sleep(unsigned long msec)
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{
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int ret;
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rb_thread_t *th = GET_THREAD();
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BLOCKING_REGION(th, ret = rb_w32_sleep(msec),
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ubf_handle, ruby_thread_from_native(), FALSE);
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return ret;
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}
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static DWORD
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hrtime2msec(rb_hrtime_t hrt)
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{
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return (DWORD)hrt / (DWORD)RB_HRTIME_PER_MSEC;
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}
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static void
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native_sleep(rb_thread_t *th, rb_hrtime_t *rel)
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{
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const volatile DWORD msec = rel ? hrtime2msec(*rel) : INFINITE;
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GVL_UNLOCK_BEGIN(th);
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{
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DWORD ret;
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rb_native_mutex_lock(&th->interrupt_lock);
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th->unblock.func = ubf_handle;
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th->unblock.arg = th;
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rb_native_mutex_unlock(&th->interrupt_lock);
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if (RUBY_VM_INTERRUPTED(th->ec)) {
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/* interrupted. return immediate */
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}
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else {
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thread_debug("native_sleep start (%lu)\n", msec);
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ret = w32_wait_events(0, 0, msec, th);
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thread_debug("native_sleep done (%lu)\n", ret);
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}
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rb_native_mutex_lock(&th->interrupt_lock);
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th->unblock.func = 0;
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th->unblock.arg = 0;
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rb_native_mutex_unlock(&th->interrupt_lock);
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}
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GVL_UNLOCK_END(th);
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}
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void
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rb_native_mutex_lock(rb_nativethread_lock_t *lock)
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{
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#if USE_WIN32_MUTEX
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w32_mutex_lock(lock->mutex);
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#else
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EnterCriticalSection(&lock->crit);
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#endif
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}
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void
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rb_native_mutex_unlock(rb_nativethread_lock_t *lock)
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{
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#if USE_WIN32_MUTEX
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thread_debug("release mutex: %p\n", lock->mutex);
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ReleaseMutex(lock->mutex);
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#else
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LeaveCriticalSection(&lock->crit);
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#endif
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}
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static int
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native_mutex_trylock(rb_nativethread_lock_t *lock)
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{
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#if USE_WIN32_MUTEX
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int result;
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thread_debug("native_mutex_trylock: %p\n", lock->mutex);
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result = w32_wait_events(&lock->mutex, 1, 1, 0);
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thread_debug("native_mutex_trylock result: %d\n", result);
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switch (result) {
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case WAIT_OBJECT_0:
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return 0;
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case WAIT_TIMEOUT:
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return EBUSY;
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}
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return EINVAL;
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#else
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return TryEnterCriticalSection(&lock->crit) == 0;
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#endif
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}
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void
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rb_native_mutex_initialize(rb_nativethread_lock_t *lock)
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{
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#if USE_WIN32_MUTEX
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lock->mutex = w32_mutex_create();
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/* thread_debug("initialize mutex: %p\n", lock->mutex); */
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#else
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InitializeCriticalSection(&lock->crit);
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#endif
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}
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void
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rb_native_mutex_destroy(rb_nativethread_lock_t *lock)
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{
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#if USE_WIN32_MUTEX
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w32_close_handle(lock->mutex);
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#else
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DeleteCriticalSection(&lock->crit);
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#endif
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}
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struct cond_event_entry {
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struct cond_event_entry* next;
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struct cond_event_entry* prev;
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HANDLE event;
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};
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void
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rb_native_cond_signal(rb_nativethread_cond_t *cond)
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{
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/* cond is guarded by mutex */
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struct cond_event_entry *e = cond->next;
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struct cond_event_entry *head = (struct cond_event_entry*)cond;
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if (e != head) {
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struct cond_event_entry *next = e->next;
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struct cond_event_entry *prev = e->prev;
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prev->next = next;
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next->prev = prev;
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e->next = e->prev = e;
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SetEvent(e->event);
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}
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}
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void
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rb_native_cond_broadcast(rb_nativethread_cond_t *cond)
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{
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/* cond is guarded by mutex */
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struct cond_event_entry *e = cond->next;
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struct cond_event_entry *head = (struct cond_event_entry*)cond;
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while (e != head) {
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struct cond_event_entry *next = e->next;
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struct cond_event_entry *prev = e->prev;
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SetEvent(e->event);
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prev->next = next;
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next->prev = prev;
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e->next = e->prev = e;
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e = next;
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}
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}
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static int
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native_cond_timedwait_ms(rb_nativethread_cond_t *cond, rb_nativethread_lock_t *mutex, unsigned long msec)
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{
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DWORD r;
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struct cond_event_entry entry;
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struct cond_event_entry *head = (struct cond_event_entry*)cond;
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entry.event = CreateEvent(0, FALSE, FALSE, 0);
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/* cond is guarded by mutex */
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entry.next = head;
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entry.prev = head->prev;
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head->prev->next = &entry;
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head->prev = &entry;
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rb_native_mutex_unlock(mutex);
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{
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r = WaitForSingleObject(entry.event, msec);
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if ((r != WAIT_OBJECT_0) && (r != WAIT_TIMEOUT)) {
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rb_bug("rb_native_cond_wait: WaitForSingleObject returns %lu", r);
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}
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}
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rb_native_mutex_lock(mutex);
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entry.prev->next = entry.next;
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entry.next->prev = entry.prev;
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w32_close_handle(entry.event);
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return (r == WAIT_OBJECT_0) ? 0 : ETIMEDOUT;
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}
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void
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rb_native_cond_wait(rb_nativethread_cond_t *cond, rb_nativethread_lock_t *mutex)
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{
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native_cond_timedwait_ms(cond, mutex, INFINITE);
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}
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#if 0
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static unsigned long
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abs_timespec_to_timeout_ms(const struct timespec *ts)
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{
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struct timeval tv;
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struct timeval now;
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gettimeofday(&now, NULL);
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tv.tv_sec = ts->tv_sec;
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tv.tv_usec = ts->tv_nsec / 1000;
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if (!rb_w32_time_subtract(&tv, &now))
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return 0;
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return (tv.tv_sec * 1000) + (tv.tv_usec / 1000);
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}
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static int
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native_cond_timedwait(rb_nativethread_cond_t *cond, rb_nativethread_lock_t *mutex, const struct timespec *ts)
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{
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unsigned long timeout_ms;
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timeout_ms = abs_timespec_to_timeout_ms(ts);
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if (!timeout_ms)
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return ETIMEDOUT;
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return native_cond_timedwait_ms(cond, mutex, timeout_ms);
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}
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static struct timespec
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native_cond_timeout(rb_nativethread_cond_t *cond, struct timespec timeout_rel)
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{
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int ret;
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struct timeval tv;
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struct timespec timeout;
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struct timespec now;
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ret = gettimeofday(&tv, 0);
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if (ret != 0)
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rb_sys_fail(0);
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now.tv_sec = tv.tv_sec;
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now.tv_nsec = tv.tv_usec * 1000;
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timeout.tv_sec = now.tv_sec;
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timeout.tv_nsec = now.tv_nsec;
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timeout.tv_sec += timeout_rel.tv_sec;
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timeout.tv_nsec += timeout_rel.tv_nsec;
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if (timeout.tv_nsec >= 1000*1000*1000) {
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timeout.tv_sec++;
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timeout.tv_nsec -= 1000*1000*1000;
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}
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if (timeout.tv_sec < now.tv_sec)
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timeout.tv_sec = TIMET_MAX;
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return timeout;
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}
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#endif
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void
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rb_native_cond_initialize(rb_nativethread_cond_t *cond)
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{
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cond->next = (struct cond_event_entry *)cond;
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cond->prev = (struct cond_event_entry *)cond;
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}
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void
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rb_native_cond_destroy(rb_nativethread_cond_t *cond)
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{
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/* */
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}
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|
|
void
|
|
ruby_init_stack(volatile VALUE *addr)
|
|
{
|
|
}
|
|
|
|
#define CHECK_ERR(expr) \
|
|
{if (!(expr)) {rb_bug("err: %lu - %s", GetLastError(), #expr);}}
|
|
|
|
static void
|
|
native_thread_init_stack(rb_thread_t *th)
|
|
{
|
|
MEMORY_BASIC_INFORMATION mi;
|
|
char *base, *end;
|
|
DWORD size, space;
|
|
|
|
CHECK_ERR(VirtualQuery(&mi, &mi, sizeof(mi)));
|
|
base = mi.AllocationBase;
|
|
end = mi.BaseAddress;
|
|
end += mi.RegionSize;
|
|
size = end - base;
|
|
space = size / 5;
|
|
if (space > 1024*1024) space = 1024*1024;
|
|
th->ec->machine.stack_start = (VALUE *)end - 1;
|
|
th->ec->machine.stack_maxsize = size - space;
|
|
}
|
|
|
|
#ifndef InterlockedExchangePointer
|
|
#define InterlockedExchangePointer(t, v) \
|
|
(void *)InterlockedExchange((long *)(t), (long)(v))
|
|
#endif
|
|
static void
|
|
native_thread_destroy(rb_thread_t *th)
|
|
{
|
|
HANDLE intr = InterlockedExchangePointer(&th->native_thread_data.interrupt_event, 0);
|
|
thread_debug("close handle - intr: %p, thid: %p\n", intr, th->thread_id);
|
|
w32_close_handle(intr);
|
|
}
|
|
|
|
static unsigned long __stdcall
|
|
thread_start_func_1(void *th_ptr)
|
|
{
|
|
rb_thread_t *th = th_ptr;
|
|
volatile HANDLE thread_id = th->thread_id;
|
|
|
|
native_thread_init_stack(th);
|
|
th->native_thread_data.interrupt_event = CreateEvent(0, TRUE, FALSE, 0);
|
|
|
|
/* run */
|
|
thread_debug("thread created (th: %p, thid: %p, event: %p)\n", th,
|
|
th->thread_id, th->native_thread_data.interrupt_event);
|
|
|
|
thread_start_func_2(th, th->ec->machine.stack_start, rb_ia64_bsp());
|
|
|
|
w32_close_handle(thread_id);
|
|
thread_debug("thread deleted (th: %p)\n", th);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
native_thread_create(rb_thread_t *th)
|
|
{
|
|
size_t stack_size = 4 * 1024; /* 4KB is the minimum commit size */
|
|
th->thread_id = w32_create_thread(stack_size, thread_start_func_1, th);
|
|
|
|
if ((th->thread_id) == 0) {
|
|
return thread_errno;
|
|
}
|
|
|
|
w32_resume_thread(th->thread_id);
|
|
|
|
if (THREAD_DEBUG) {
|
|
Sleep(0);
|
|
thread_debug("create: (th: %p, thid: %p, intr: %p), stack size: %"PRIuSIZE"\n",
|
|
th, th->thread_id,
|
|
th->native_thread_data.interrupt_event, stack_size);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
native_thread_join(HANDLE th)
|
|
{
|
|
w32_wait_events(&th, 1, INFINITE, 0);
|
|
}
|
|
|
|
#if USE_NATIVE_THREAD_PRIORITY
|
|
|
|
static void
|
|
native_thread_apply_priority(rb_thread_t *th)
|
|
{
|
|
int priority = th->priority;
|
|
if (th->priority > 0) {
|
|
priority = THREAD_PRIORITY_ABOVE_NORMAL;
|
|
}
|
|
else if (th->priority < 0) {
|
|
priority = THREAD_PRIORITY_BELOW_NORMAL;
|
|
}
|
|
else {
|
|
priority = THREAD_PRIORITY_NORMAL;
|
|
}
|
|
|
|
SetThreadPriority(th->thread_id, priority);
|
|
}
|
|
|
|
#endif /* USE_NATIVE_THREAD_PRIORITY */
|
|
|
|
int rb_w32_select_with_thread(int, fd_set *, fd_set *, fd_set *, struct timeval *, void *); /* @internal */
|
|
|
|
static int
|
|
native_fd_select(int n, rb_fdset_t *readfds, rb_fdset_t *writefds, rb_fdset_t *exceptfds, struct timeval *timeout, rb_thread_t *th)
|
|
{
|
|
fd_set *r = NULL, *w = NULL, *e = NULL;
|
|
if (readfds) {
|
|
rb_fd_resize(n - 1, readfds);
|
|
r = rb_fd_ptr(readfds);
|
|
}
|
|
if (writefds) {
|
|
rb_fd_resize(n - 1, writefds);
|
|
w = rb_fd_ptr(writefds);
|
|
}
|
|
if (exceptfds) {
|
|
rb_fd_resize(n - 1, exceptfds);
|
|
e = rb_fd_ptr(exceptfds);
|
|
}
|
|
return rb_w32_select_with_thread(n, r, w, e, timeout, th);
|
|
}
|
|
|
|
/* @internal */
|
|
int
|
|
rb_w32_check_interrupt(rb_thread_t *th)
|
|
{
|
|
return w32_wait_events(0, 0, 0, th);
|
|
}
|
|
|
|
static void
|
|
ubf_handle(void *ptr)
|
|
{
|
|
rb_thread_t *th = (rb_thread_t *)ptr;
|
|
thread_debug("ubf_handle: %p\n", th);
|
|
|
|
if (!SetEvent(th->native_thread_data.interrupt_event)) {
|
|
w32_error("ubf_handle");
|
|
}
|
|
}
|
|
|
|
int rb_w32_set_thread_description(HANDLE th, const WCHAR *name);
|
|
int rb_w32_set_thread_description_str(HANDLE th, VALUE name);
|
|
#define native_set_another_thread_name rb_w32_set_thread_description_str
|
|
|
|
static struct {
|
|
HANDLE id;
|
|
HANDLE lock;
|
|
} timer_thread;
|
|
#define TIMER_THREAD_CREATED_P() (timer_thread.id != 0)
|
|
|
|
static unsigned long __stdcall
|
|
timer_thread_func(void *dummy)
|
|
{
|
|
rb_vm_t *vm = GET_VM();
|
|
thread_debug("timer_thread\n");
|
|
rb_w32_set_thread_description(GetCurrentThread(), L"ruby-timer-thread");
|
|
while (WaitForSingleObject(timer_thread.lock, TIME_QUANTUM_USEC/1000) ==
|
|
WAIT_TIMEOUT) {
|
|
timer_thread_function();
|
|
ruby_sigchld_handler(vm); /* probably no-op */
|
|
rb_threadptr_check_signal(vm->main_thread);
|
|
}
|
|
thread_debug("timer killed\n");
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
rb_thread_wakeup_timer_thread(int sig)
|
|
{
|
|
/* do nothing */
|
|
}
|
|
|
|
static VALUE
|
|
rb_thread_start_unblock_thread(void)
|
|
{
|
|
return Qfalse; /* no-op */
|
|
}
|
|
|
|
static void
|
|
rb_thread_create_timer_thread(void)
|
|
{
|
|
if (timer_thread.id == 0) {
|
|
if (!timer_thread.lock) {
|
|
timer_thread.lock = CreateEvent(0, TRUE, FALSE, 0);
|
|
}
|
|
timer_thread.id = w32_create_thread(1024 + (THREAD_DEBUG ? BUFSIZ : 0),
|
|
timer_thread_func, 0);
|
|
w32_resume_thread(timer_thread.id);
|
|
}
|
|
}
|
|
|
|
static int
|
|
native_stop_timer_thread(void)
|
|
{
|
|
int stopped = --system_working <= 0;
|
|
if (stopped) {
|
|
SetEvent(timer_thread.lock);
|
|
native_thread_join(timer_thread.id);
|
|
CloseHandle(timer_thread.lock);
|
|
timer_thread.lock = 0;
|
|
}
|
|
return stopped;
|
|
}
|
|
|
|
static void
|
|
native_reset_timer_thread(void)
|
|
{
|
|
if (timer_thread.id) {
|
|
CloseHandle(timer_thread.id);
|
|
timer_thread.id = 0;
|
|
}
|
|
}
|
|
|
|
int
|
|
ruby_stack_overflowed_p(const rb_thread_t *th, const void *addr)
|
|
{
|
|
return rb_ec_raised_p(th->ec, RAISED_STACKOVERFLOW);
|
|
}
|
|
|
|
#if defined(__MINGW32__)
|
|
LONG WINAPI
|
|
rb_w32_stack_overflow_handler(struct _EXCEPTION_POINTERS *exception)
|
|
{
|
|
if (exception->ExceptionRecord->ExceptionCode == EXCEPTION_STACK_OVERFLOW) {
|
|
rb_ec_raised_set(GET_EC(), RAISED_STACKOVERFLOW);
|
|
raise(SIGSEGV);
|
|
}
|
|
return EXCEPTION_CONTINUE_SEARCH;
|
|
}
|
|
#endif
|
|
|
|
#ifdef RUBY_ALLOCA_CHKSTK
|
|
void
|
|
ruby_alloca_chkstk(size_t len, void *sp)
|
|
{
|
|
if (ruby_stack_length(NULL) * sizeof(VALUE) >= len) {
|
|
rb_execution_context_t *ec = GET_EC();
|
|
if (!rb_ec_raised_p(ec, RAISED_STACKOVERFLOW)) {
|
|
rb_ec_raised_set(ec, RAISED_STACKOVERFLOW);
|
|
rb_exc_raise(sysstack_error);
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
int
|
|
rb_reserved_fd_p(int fd)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
rb_sigwait_fd_get(rb_thread_t *th)
|
|
{
|
|
return -1; /* TODO */
|
|
}
|
|
|
|
NORETURN(void rb_sigwait_fd_put(rb_thread_t *, int));
|
|
void
|
|
rb_sigwait_fd_put(rb_thread_t *th, int fd)
|
|
{
|
|
rb_bug("not implemented, should not be called");
|
|
}
|
|
|
|
NORETURN(void rb_sigwait_sleep(const rb_thread_t *, int, const rb_hrtime_t *));
|
|
void
|
|
rb_sigwait_sleep(const rb_thread_t *th, int fd, const rb_hrtime_t *rel)
|
|
{
|
|
rb_bug("not implemented, should not be called");
|
|
}
|
|
|
|
rb_nativethread_id_t
|
|
rb_nativethread_self(void)
|
|
{
|
|
return GetCurrentThread();
|
|
}
|
|
|
|
static void
|
|
native_set_thread_name(rb_thread_t *th)
|
|
{
|
|
}
|
|
|
|
#if USE_MJIT
|
|
static unsigned long __stdcall
|
|
mjit_worker(void *arg)
|
|
{
|
|
void (*worker_func)(void) = arg;
|
|
rb_w32_set_thread_description(GetCurrentThread(), L"ruby-mjitworker");
|
|
worker_func();
|
|
return 0;
|
|
}
|
|
|
|
/* Launch MJIT thread. Returns FALSE if it fails to create thread. */
|
|
int
|
|
rb_thread_create_mjit_thread(void (*worker_func)(void))
|
|
{
|
|
size_t stack_size = 4 * 1024; /* 4KB is the minimum commit size */
|
|
HANDLE thread_id = w32_create_thread(stack_size, mjit_worker, worker_func);
|
|
if (thread_id == 0) {
|
|
return FALSE;
|
|
}
|
|
|
|
w32_resume_thread(thread_id);
|
|
return TRUE;
|
|
}
|
|
#endif
|
|
|
|
#endif /* THREAD_SYSTEM_DEPENDENT_IMPLEMENTATION */
|