r51270 - tags/mono-1-1-9-2/mono/mono/io-layer

[Miguel de Icaza (miguel@novell.com)]

Author: miguel
Date: 2005-10-05 11:03:23 -0400 (Wed, 05 Oct 2005)
New Revision: 51270

Removed:
tags/mono-1-1-9-2/mono/mono/io-layer/threads.c
Log:
Remove to put in tag

Deleted: tags/mono-1-1-9-2/mono/mono/io-layer/threads.c
===================================================================
--- tags/mono-1-1-9-2/mono/mono/io-layer/threads.c 2005-10-05 15:01:58 UTC (rev 51269)
+++ tags/mono-1-1-9-2/mono/mono/io-layer/threads.c 2005-10-05 15:03:23 UTC (rev 51270)
@@ -1,1096 +0,0 @@
-/*
- * threads.c: Thread handles
- *
- * Author:
- * Dick Porter (di...@ximian.com)
- *
- * (C) 2002 Ximian, Inc.
- */
-
-#include <config.h>
-#include <stdio.h>
-#include <glib.h>
-#include <string.h>
-#include <pthread.h>
-#include <signal.h>
-#include <sched.h>
-#include <sys/time.h>
-#include <errno.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-#include <mono/io-layer/wapi.h>
-#include <mono/io-layer/wapi-private.h>
-#include <mono/io-layer/timed-thread.h>
-#include <mono/io-layer/handles-private.h>
-#include <mono/io-layer/misc-private.h>
-#include <mono/io-layer/mono-mutex.h>
-#include <mono/io-layer/thread-private.h>
-#include <mono/io-layer/mono-spinlock.h>
-#include <mono/io-layer/mutex-private.h>
-
-#if HAVE_VALGRIND_MEMCHECK_H
-#include <valgrind/memcheck.h>
-#endif
-
-#undef DEBUG
-#undef TLS_DEBUG
-
-
-/* Hash threads with tids. I thought of using TLS for this, but that
- * would have to set the data in the new thread, which is more hassle
- */
-static mono_once_t thread_hash_once = MONO_ONCE_INIT;
-static mono_mutex_t thread_hash_mutex = MONO_MUTEX_INITIALIZER;
-static GHashTable *thread_hash=NULL;
-
-static void thread_close (gpointer handle, gpointer data);
-static gboolean thread_own (gpointer handle);
-
-struct _WapiHandleOps _wapi_thread_ops = {
- thread_close, /* close */
- NULL, /* signal */
- thread_own, /* own */
- NULL, /* is_owned */
-};
-
-static mono_once_t thread_ops_once=MONO_ONCE_INIT;
-
-#ifdef WITH_INCLUDED_LIBGC
-static void gc_init (void);
-#endif
-
-static void thread_ops_init (void)
-{
- _wapi_handle_register_capabilities (WAPI_HANDLE_THREAD,
- WAPI_HANDLE_CAP_WAIT);
-
-#ifdef WITH_INCLUDED_LIBGC
- gc_init ();
-#endif
-}
-
-static void thread_close (gpointer handle, gpointer data)
-{
- struct _WapiHandle_thread *thread_handle = (struct _WapiHandle_thread *)data;
-
-#ifdef DEBUG
- g_message ("%s: closing thread handle %p", __func__, handle);
-#endif
-
- g_ptr_array_free (thread_handle->owned_mutexes, TRUE);
-}
-
-static gboolean thread_own (gpointer handle)
-{
- struct _WapiHandle_thread *thread_handle;
- gboolean ok;
-
-#ifdef DEBUG
- g_message ("%s: owning thread handle %p", __func__, handle);
-#endif
-
- ok = _wapi_lookup_handle (handle, WAPI_HANDLE_THREAD,
- (gpointer *)&thread_handle);
- if (ok == FALSE) {
- g_warning ("%s: error looking up thread handle %p", __func__,
- handle);
- return(FALSE);
- }
-
- if (thread_handle->joined == FALSE) {
- _wapi_timed_thread_join (thread_handle->thread, NULL, NULL);
- thread_handle->joined = TRUE;
- }
-
- return(TRUE);
-}
-
-static void thread_exit(guint32 exitstatus, gpointer handle)
-{
- struct _WapiHandle_thread *thread_handle;
- gboolean ok;
- int thr_ret;
- int i;
-
- pthread_cleanup_push ((void(*)(void *))_wapi_handle_unlock_handle,
- handle);
- thr_ret = _wapi_handle_lock_handle (handle);
- g_assert (thr_ret == 0);
-
- ok = _wapi_lookup_handle (handle, WAPI_HANDLE_THREAD,
- (gpointer *)&thread_handle);
- if (ok == FALSE) {
- g_warning ("%s: error looking up thread handle %p", __func__,
- handle);
- return;
- }
-
- for (i = 0; i < thread_handle->owned_mutexes->len; i++) {
- _wapi_mutex_abandon (g_ptr_array_index (thread_handle->owned_mutexes, i), getpid (), thread_handle->thread->id);
- }
-
-#ifdef DEBUG
- g_message ("%s: Recording thread handle %p exit status", __func__,
- handle);
-#endif
-
- thread_handle->exitstatus = exitstatus;
- thread_handle->state = THREAD_STATE_EXITED;
-
- _wapi_handle_set_signal_state (handle, TRUE, TRUE);
-
- thr_ret = _wapi_handle_unlock_handle (handle);
- g_assert (thr_ret == 0);
- pthread_cleanup_pop (0);
-
-#ifdef DEBUG
- g_message("%s: Recording thread handle %p id %ld status as %d",
- __func__, handle, thread_handle->thread->id, exitstatus);
-#endif
-
- /* Remove this thread from the hash */
- pthread_cleanup_push ((void(*)(void *))mono_mutex_unlock_in_cleanup,
- (void *)&thread_hash_mutex);
- thr_ret = mono_mutex_lock(&thread_hash_mutex);
- g_assert (thr_ret == 0);
-
- g_hash_table_remove (thread_hash, (gpointer)(thread_handle->thread->id));
-
- thr_ret = mono_mutex_unlock(&thread_hash_mutex);
- g_assert (thr_ret == 0);
- pthread_cleanup_pop (0);
-
- /* The thread is no longer active, so unref it */
- _wapi_handle_unref (handle);
-}
-
-static void thread_hash_init(void)
-{
- thread_hash = g_hash_table_new (NULL, NULL);
-}
-
-/**
- * CreateThread:
- * @security: Ignored for now.
- * @stacksize: the size in bytes of the new thread's stack. Use 0 to
- * default to the normal stack size. (Ignored for now).
- * @start: The function that the new thread should start with
- * @param: The parameter to give to @start.
- * @create: If 0, the new thread is ready to run immediately. If
- * %CREATE_SUSPENDED, the new thread will be in the suspended state,
- * requiring a ResumeThread() call to continue running.
- * @tid: If non-NULL, the ID of the new thread is stored here. NB
- * this is defined as a DWORD (ie 32bit) in the MS API, but we need to
- * cope with 64 bit IDs for s390x and amd64.
- *
- * Creates a new threading handle.
- *
- * Return value: a new handle, or NULL
- */
-gpointer CreateThread(WapiSecurityAttributes *security G_GNUC_UNUSED, guint32 stacksize,
- WapiThreadStart start, gpointer param, guint32 create,
- gsize *tid)
-{
- struct _WapiHandle_thread thread_handle = {0}, *thread_handle_p;
- pthread_attr_t attr;
- gpointer handle;
- gboolean ok;
- int ret;
- int thr_ret;
- int i, unrefs = 0;
- gpointer ct_ret = NULL;
-
- mono_once (&thread_hash_once, thread_hash_init);
- mono_once (&thread_ops_once, thread_ops_init);
-
- if (start == NULL) {
- return(NULL);
- }
-
- thread_handle.state = THREAD_STATE_START;
- thread_handle.owner_pid = getpid ();
- thread_handle.owned_mutexes = g_ptr_array_new ();
-
- handle = _wapi_handle_new (WAPI_HANDLE_THREAD, &thread_handle);
- if (handle == _WAPI_HANDLE_INVALID) {
- g_warning ("%s: error creating thread handle", __func__);
- SetLastError (ERROR_GEN_FAILURE);
-
- return (NULL);
- }
-
- pthread_cleanup_push ((void(*)(void *))_wapi_handle_unlock_handle,
- handle);
- thr_ret = _wapi_handle_lock_handle (handle);
- g_assert (thr_ret == 0);
-
- ok = _wapi_lookup_handle (handle, WAPI_HANDLE_THREAD,
- (gpointer *)&thread_handle_p);
- if (ok == FALSE) {
- g_warning ("%s: error looking up thread handle %p", __func__,
- handle);
- SetLastError (ERROR_GEN_FAILURE);
-
- goto cleanup;
- }
-
- /* Hold a reference while the thread is active, because we use
- * the handle to store thread exit information
- */
- _wapi_handle_ref (handle);
-
- /* Lock around the thread create, so that the new thread cant
- * race us to look up the thread handle in GetCurrentThread()
- */
- pthread_cleanup_push ((void(*)(void *))mono_mutex_unlock_in_cleanup,
- (void *)&thread_hash_mutex);
- thr_ret = mono_mutex_lock(&thread_hash_mutex);
- g_assert (thr_ret == 0);
-
- /* Set a 2M stack size. This is the default on Linux, but BSD
- * needs it. (The original bug report from Martin Dvorak <m...@9ll.cz>
- * set the size to 2M-4k. I don't know why it's short by 4k, so
- * I'm leaving it as 2M until I'm told differently.)
- */
- thr_ret = pthread_attr_init(&attr);
- g_assert (thr_ret == 0);
-
- /* defaults of 2Mb for 32bits and 4Mb for 64bits */
- /* temporarily changed to use 1 MB: this allows more threads
- * to be used, as well as using less virtual memory and so
- * more is available for the GC heap.
- */
- if (stacksize == 0){
-#if HAVE_VALGRIND_MEMCHECK_H
- if (RUNNING_ON_VALGRIND) {
- stacksize = 1 << 20;
- } else {
- stacksize = (SIZEOF_VOID_P / 4) * 1024 * 1024;
- }
-#else
- stacksize = (SIZEOF_VOID_P / 4) * 1024 * 1024;
-#endif
- }
-
-#ifdef HAVE_PTHREAD_ATTR_SETSTACKSIZE
- thr_ret = pthread_attr_setstacksize(&attr, stacksize);
- g_assert (thr_ret == 0);
-#endif
-
- ret = _wapi_timed_thread_create (&thread_handle_p->thread, &attr,
- create, start, thread_exit, param,
- handle);
- if (ret != 0) {
-#ifdef DEBUG
- g_message ("%s: Thread create error: %s", __func__,
- strerror(ret));
-#endif
-
- /* Two, because of the reference we took above */
- unrefs = 2;
-
- goto thread_hash_cleanup;
- }
- ct_ret = handle;
-
- g_hash_table_insert (thread_hash,
- (gpointer)(thread_handle_p->thread->id),
- handle);
-
-#ifdef DEBUG
- g_message("%s: Started thread handle %p thread %p ID %ld", __func__,
- handle, thread_handle_p->thread,
- thread_handle_p->thread->id);
-#endif
-
- if (tid != NULL) {
-#ifdef PTHREAD_POINTER_ID
- /* Don't use GPOINTER_TO_UINT here, it can't cope with
- * sizeof(void *) > sizeof(uint) when a cast to uint
- * would overflow
- */
- *tid = (gsize)(thread_handle_p->thread->id);
-#else
- *tid = thread_handle_p->thread->id;
-#endif
- }
-
-thread_hash_cleanup:
- thr_ret = mono_mutex_unlock (&thread_hash_mutex);
- g_assert (thr_ret == 0);
- pthread_cleanup_pop (0);
-
-cleanup:
- thr_ret = _wapi_handle_unlock_handle (handle);
- g_assert (thr_ret == 0);
- pthread_cleanup_pop (0);
-
- /* Must not call _wapi_handle_unref() with the handle already
- * locked
- */
- for (i = 0; i < unrefs; i++) {
- _wapi_handle_unref (handle);
- }
-
- return(ct_ret);
-}
-
-gpointer _wapi_thread_handle_from_id (pthread_t tid)
-{
- gpointer ret=NULL;
- int thr_ret;
-
- pthread_cleanup_push ((void(*)(void *))mono_mutex_unlock_in_cleanup,
- (void *)&thread_hash_mutex);
- thr_ret = mono_mutex_lock(&thread_hash_mutex);
- g_assert (thr_ret == 0);
-
- ret = g_hash_table_lookup (thread_hash, (gpointer)(tid));
-
- thr_ret = mono_mutex_unlock(&thread_hash_mutex);
- g_assert (thr_ret == 0);
- pthread_cleanup_pop (0);
-
- return(ret);
-}
-
-/* NB tid is 32bit in MS API, but we need 64bit on amd64 and s390x
- * (and probably others)
- */
-gpointer OpenThread (guint32 access G_GNUC_UNUSED, gboolean inherit G_GNUC_UNUSED, gsize tid)
-{
- gpointer ret=NULL;
-
- mono_once (&thread_hash_once, thread_hash_init);
- mono_once (&thread_ops_once, thread_ops_init);
-
-#ifdef DEBUG
- g_message ("%s: looking up thread %"G_GSIZE_FORMAT, __func__, tid);
-#endif
-
- ret = _wapi_thread_handle_from_id ((pthread_t)tid);
- if(ret!=NULL) {
- _wapi_handle_ref (ret);
- }
-
-#ifdef DEBUG
- g_message ("%s: returning thread handle %p", __func__, ret);
-#endif
-
- return(ret);
-}
-
-/**
- * ExitThread:
- * @exitcode: Sets the thread's exit code, which can be read from
- * another thread with GetExitCodeThread().
- *
- * Terminates the calling thread. A thread can also exit by returning
- * from its start function. When the last thread in a process
- * terminates, the process itself terminates.
- */
-void ExitThread(guint32 exitcode)
-{
- _wapi_timed_thread_exit(exitcode);
-}
-
-/**
- * GetExitCodeThread:
- * @handle: The thread handle to query
- * @exitcode: The thread @handle exit code is stored here
- *
- * Finds the exit code of @handle, and stores it in @exitcode. If the
- * thread @handle is still running, the value stored is %STILL_ACTIVE.
- *
- * Return value: %TRUE, or %FALSE on error.
- */
-gboolean GetExitCodeThread(gpointer handle, guint32 *exitcode)
-{
- struct _WapiHandle_thread *thread_handle;
- gboolean ok;
-
- ok = _wapi_lookup_handle (handle, WAPI_HANDLE_THREAD,
- (gpointer *)&thread_handle);
- if (ok == FALSE) {
- g_warning ("%s: error looking up thread handle %p", __func__,
- handle);
- return (FALSE);
- }
-
-#ifdef DEBUG
- g_message ("%s: Finding exit status for thread handle %p id %ld",
- __func__, handle, thread_handle->thread->id);
-#endif
-
- if (exitcode == NULL) {
-#ifdef DEBUG
- g_message ("%s: Nowhere to store exit code", __func__);
-#endif
- return(FALSE);
- }
-
- if (thread_handle->state != THREAD_STATE_EXITED) {
-#ifdef DEBUG
- g_message ("%s: Thread still active (state %d, exited is %d)",
- __func__, thread_handle->state,
- THREAD_STATE_EXITED);
-#endif
- *exitcode = STILL_ACTIVE;
- return(TRUE);
- }
-
- *exitcode = thread_handle->exitstatus;
-
- return(TRUE);
-}
-
-/**
- * GetCurrentThreadId:
- *
- * Looks up the thread ID of the current thread. This ID can be
- * passed to OpenThread() to create a new handle on this thread.
- *
- * Return value: the thread ID. NB this is defined as DWORD (ie 32
- * bit) in the MS API, but we need to cope with 64 bit IDs for s390x
- * and amd64. This doesn't really break the API, it just embraces and
- * extends it on 64bit platforms :)
- */
-gsize GetCurrentThreadId(void)
-{
- pthread_t tid = pthread_self();
-
-#ifdef PTHREAD_POINTER_ID
- /* Don't use GPOINTER_TO_UINT here, it can't cope with
- * sizeof(void *) > sizeof(uint) when a cast to uint would
- * overflow
- */
- return((gsize)tid);
-#else
- return(tid);
-#endif
-}
-
-static gpointer thread_attach(gsize *tid)
-{
- struct _WapiHandle_thread thread_handle = {0}, *thread_handle_p;
- gpointer handle;
- gboolean ok;
- int ret;
- int thr_ret;
- int i, unrefs = 0;
- gpointer ta_ret = NULL;
-
- mono_once (&thread_hash_once, thread_hash_init);
- mono_once (&thread_ops_once, thread_ops_init);
-
- thread_handle.state = THREAD_STATE_START;
- thread_handle.owner_pid = getpid ();
- thread_handle.owned_mutexes = g_ptr_array_new ();
-
- handle = _wapi_handle_new (WAPI_HANDLE_THREAD, &thread_handle);
- if (handle == _WAPI_HANDLE_INVALID) {
- g_warning ("%s: error creating thread handle", __func__);
-
- SetLastError (ERROR_GEN_FAILURE);
- return (NULL);
- }
-
- pthread_cleanup_push ((void(*)(void *))_wapi_handle_unlock_handle,
- handle);
- thr_ret = _wapi_handle_lock_handle (handle);
- g_assert (thr_ret == 0);
-
- ok = _wapi_lookup_handle (handle, WAPI_HANDLE_THREAD,
- (gpointer *)&thread_handle_p);
- if (ok == FALSE) {
- g_warning ("%s: error looking up thread handle %p", __func__,
- handle);
-
- SetLastError (ERROR_GEN_FAILURE);
- goto cleanup;
- }
-
- /* Hold a reference while the thread is active, because we use
- * the handle to store thread exit information
- */
- _wapi_handle_ref (handle);
-
- /* Lock around the thread create, so that the new thread cant
- * race us to look up the thread handle in GetCurrentThread()
- */
- pthread_cleanup_push ((void(*)(void *))mono_mutex_unlock_in_cleanup,
- (void *)&thread_hash_mutex);
- thr_ret = mono_mutex_lock(&thread_hash_mutex);
- g_assert (thr_ret == 0);
-
- ret = _wapi_timed_thread_attach (&thread_handle_p->thread, thread_exit,
- handle);
- if (ret != 0) {
-#ifdef DEBUG
- g_message ("%s: Thread attach error: %s", __func__,
- strerror(ret));
-#endif
-
- /* Two, because of the reference we took above */
- unrefs = 2;
-
- goto thread_hash_cleanup;
- }
- ta_ret = handle;
-
- g_hash_table_insert (thread_hash,
- (gpointer)(thread_handle_p->thread->id),
- handle);
-
-#ifdef DEBUG
- g_message("%s: Attached thread handle %p thread %p ID %ld", __func__,
- handle, thread_handle_p->thread,
- thread_handle_p->thread->id);
-#endif
-
- if (tid != NULL) {
-#ifdef PTHREAD_POINTER_ID
- /* Don't use GPOINTER_TO_UINT here, it can't cope with
- * sizeof(void *) > sizeof(uint) when a cast to uint
- * would overflow
- */
- *tid = (gsize)(thread_handle_p->thread->id);
-#else
- *tid = thread_handle_p->thread->id;
-#endif
- }
-
-thread_hash_cleanup:
- thr_ret = mono_mutex_unlock (&thread_hash_mutex);
- g_assert (thr_ret == 0);
- pthread_cleanup_pop (0);
-
-cleanup:
- thr_ret = _wapi_handle_unlock_handle (handle);
- g_assert (thr_ret == 0);
- pthread_cleanup_pop (0);
-
- /* Must not call _wapi_handle_unref() with the handle already
- * locked
- */
- for (i = 0; i < unrefs; i++) {
- _wapi_handle_unref (handle);
- }
-
- return(ta_ret);
-}
-
-/**
- * GetCurrentThread:
- *
- * Looks up the handle associated with the current thread. Under
- * Windows this is a pseudohandle, and must be duplicated with
- * DuplicateHandle() for some operations.
- *
- * Return value: The current thread handle, or %NULL on failure.
- * (Unknown whether Windows has a possible failure here. It may be
- * necessary to implement the pseudohandle-constant behaviour).
- */
-gpointer GetCurrentThread(void)
-{
- gpointer ret=NULL;
- gsize tid;
-
- mono_once(&thread_hash_once, thread_hash_init);
- mono_once (&thread_ops_once, thread_ops_init);
-
- tid = GetCurrentThreadId();
-
- ret = _wapi_thread_handle_from_id ((pthread_t)tid);
- if (!ret) {
- ret = thread_attach (NULL);
- }
-
- return(ret);
-}
-
-/**
- * ResumeThread:
- * @handle: the thread handle to resume
- *
- * Decrements the suspend count of thread @handle. A thread can only
- * run if its suspend count is zero.
- *
- * Return value: the previous suspend count, or 0xFFFFFFFF on error.
- */
-guint32 ResumeThread(gpointer handle)
-{
- struct _WapiHandle_thread *thread_handle;
- gboolean ok;
-
- ok = _wapi_lookup_handle (handle, WAPI_HANDLE_THREAD,
- (gpointer *)&thread_handle);
- if (ok == FALSE) {
- g_warning ("%s: error looking up thread handle %p", __func__,
- handle);
-
- return (0xFFFFFFFF);
- }
-
- if (thread_handle->thread == NULL) {
- return(0xFFFFFFFF);
- }
-
-#ifdef WITH_INCLUDED_LIBGC
- if (thread_handle->thread->suspend_count <= 1)
- _wapi_timed_thread_resume (thread_handle->thread);
-
- return (--thread_handle->thread->suspend_count));
-#else
- /* This is still a kludge that only copes with starting a
- * thread that was suspended on create, so don't bother with
- * the suspend count crap yet
- */
- _wapi_timed_thread_resume (thread_handle->thread);
- return(0xFFFFFFFF);
-#endif
-}
-
-/**
- * SuspendThread:
- * @handle: the thread handle to suspend
- *
- * Increments the suspend count of thread @handle. A thread can only
- * run if its suspend count is zero.
- *
- * Return value: the previous suspend count, or 0xFFFFFFFF on error.
- */
-guint32 SuspendThread(gpointer handle)
-{
-#ifdef WITH_INCLUDED_LIBGC
- struct _WapiHandle_thread *thread_handle;
- gpointer current;
- gboolean ok;
-
- current = GetCurrentThread ();
- ok = _wapi_lookup_handle (handle, WAPI_HANDLE_THREAD,
- (gpointer *)&thread_handle);
- if (ok == FALSE) {
- g_warning ("%s: error looking up thread handle %p", __func__,
- handle);
- return (0xFFFFFFFF);
- }
-
- if (thread_handle->thread == NULL) {
- return(0xFFFFFFFF);
- }
-
- if (!thread_handle->thread->suspend_count) {
- if (handle == current)
- _wapi_timed_thread_suspend (thread_handle->thread);
- else {
- pthread_kill (thread_handle->thread->id, SIGPWR);
- while (MONO_SEM_WAIT (&thread_handle->thread->suspended_sem) != 0) {
- if (errno != EINTR) {
- return(0xFFFFFFFF);
- }
- }
- }
- }
-
- return (thread_handle->thread->suspend_count++);
-#else
- return(0xFFFFFFFF);
-#endif
-}
-
-/*
- * We assume here that TLS_MINIMUM_AVAILABLE is less than
- * PTHREAD_KEYS_MAX, allowing enough overhead for a few TLS keys for
- * library usage.
- *
- * Currently TLS_MINIMUM_AVAILABLE is 64 and _POSIX_THREAD_KEYS_MAX
- * (the minimum value for PTHREAD_KEYS_MAX) is 128, so we should be
- * fine.
- */
-
-static pthread_key_t TLS_keys[TLS_MINIMUM_AVAILABLE];
-static gboolean TLS_used[TLS_MINIMUM_AVAILABLE]={FALSE};
-static guint32 TLS_spinlock=0;
-
-guint32
-mono_pthread_key_for_tls (guint32 idx)
-{
- return (guint32)TLS_keys [idx];
-}
-
-/**
- * TlsAlloc:
- *
- * Allocates a Thread Local Storage (TLS) index. Any thread in the
- * same process can use this index to store and retrieve values that
- * are local to that thread.
- *
- * Return value: The index value, or %TLS_OUT_OF_INDEXES if no index
- * is available.
- */
-guint32 TlsAlloc(void)
-{
- guint32 i;
- int thr_ret;
-
- MONO_SPIN_LOCK (TLS_spinlock);
-
- for(i=0; i<TLS_MINIMUM_AVAILABLE; i++) {
- if(TLS_used[i]==FALSE) {
- TLS_used[i]=TRUE;
- thr_ret = pthread_key_create(&TLS_keys[i], NULL);
- g_assert (thr_ret == 0);
-
- MONO_SPIN_UNLOCK (TLS_spinlock);
-
-#ifdef TLS_DEBUG
- g_message ("%s: returning key %d", __func__, i);
-#endif
-
- return(i);
- }
- }
-
- MONO_SPIN_UNLOCK (TLS_spinlock);
-
-#ifdef TLS_DEBUG
- g_message ("%s: out of indices", __func__);
-#endif
-
-
- return(TLS_OUT_OF_INDEXES);
-}
-
-#define MAKE_GC_ID(idx) (GUINT_TO_POINTER((idx)|(GetCurrentThreadId()<<8)))
-
-/**
- * TlsFree:
- * @idx: The TLS index to free
- *
- * Releases a TLS index, making it available for reuse. This call
- * will delete any TLS data stored under index @idx in all threads.
- *
- * Return value: %TRUE on success, %FALSE otherwise.
- */
-gboolean TlsFree(guint32 idx)
-{
- int thr_ret;
-
-#ifdef TLS_DEBUG
- g_message ("%s: freeing key %d", __func__, idx);
-#endif
-
- MONO_SPIN_LOCK (TLS_spinlock);
-
- if(TLS_used[idx]==FALSE) {
- MONO_SPIN_UNLOCK (TLS_spinlock);
-
- return(FALSE);
- }
-
- TLS_used[idx]=FALSE;
- thr_ret = pthread_key_delete(TLS_keys[idx]);
- g_assert (thr_ret == 0);
-
- MONO_SPIN_UNLOCK (TLS_spinlock);
-
- return(TRUE);
-}
-
-/**
- * TlsGetValue:
- * @idx: The TLS index to retrieve
- *
- * Retrieves the TLS data stored under index @idx.
- *
- * Return value: The value stored in the TLS index @idx in the current
- * thread, or %NULL on error. As %NULL can be a valid return value,
- * in this case GetLastError() returns %ERROR_SUCCESS.
- */
-gpointer TlsGetValue(guint32 idx)
-{
- gpointer ret;
-
-#ifdef TLS_DEBUG
- g_message ("%s: looking up key %d", __func__, idx);
-#endif
-
- ret=pthread_getspecific(TLS_keys[idx]);
-
-#ifdef TLS_DEBUG
- g_message ("%s: returning %p", __func__, ret);
-#endif
-
- return(ret);
-}
-
-/**
- * TlsSetValue:
- * @idx: The TLS index to store
- * @value: The value to store under index @idx
- *
- * Stores @value at TLS index @idx.
- *
- * Return value: %TRUE on success, %FALSE otherwise.
- */
-gboolean TlsSetValue(guint32 idx, gpointer value)
-{
- int ret;
-
-#ifdef TLS_DEBUG
- g_message ("%s: setting key %d to %p", __func__, idx, value);
-#endif
-
- MONO_SPIN_LOCK (TLS_spinlock);
-
- if(TLS_used[idx]==FALSE) {
-#ifdef TLS_DEBUG
- g_message ("%s: key %d unused", __func__, idx);
-#endif
-
- MONO_SPIN_UNLOCK (TLS_spinlock);
-
- return(FALSE);
- }
-
- ret=pthread_setspecific(TLS_keys[idx], value);
- if(ret!=0) {
-#ifdef TLS_DEBUG
- g_message ("%s: pthread_setspecific error: %s", __func__,
- strerror (ret));
-#endif
-
- MONO_SPIN_UNLOCK (TLS_spinlock);
-
- return(FALSE);
- }
-
- MONO_SPIN_UNLOCK (TLS_spinlock);
-
- return(TRUE);
-}
-
-/**
- * SleepEx:
- * @ms: The time in milliseconds to suspend for
- * @alertable: if TRUE, the wait can be interrupted by an APC call
- *
- * Suspends execution of the current thread for @ms milliseconds. A
- * value of zero causes the thread to relinquish its time slice. A
- * value of %INFINITE causes an infinite delay.
- */
-guint32 SleepEx(guint32 ms, gboolean alertable)
-{
- struct timespec req, rem;
- int ms_quot, ms_rem;
- int ret;
- gpointer current_thread = NULL;
-
-#ifdef DEBUG
- g_message("%s: Sleeping for %d ms", __func__, ms);
-#endif
-
- if (alertable) {
- current_thread = GetCurrentThread ();
- if (_wapi_thread_apc_pending (current_thread)) {
- _wapi_thread_dispatch_apc_queue (current_thread);
- return WAIT_IO_COMPLETION;
- }
- }
-
- if(ms==0) {
- sched_yield();
- return 0;
- }
-
- /* FIXME: check for INFINITE and sleep forever */
- ms_quot = ms / 1000;
- ms_rem = ms % 1000;
-
- req.tv_sec=ms_quot;
- req.tv_nsec=ms_rem*1000000;
-
-again:
- ret=nanosleep(&req, &rem);
-
- if (alertable && _wapi_thread_apc_pending (current_thread)) {
- _wapi_thread_dispatch_apc_queue (current_thread);
- return WAIT_IO_COMPLETION;
- }
-
- if(ret==-1) {
- /* Sleep interrupted with rem time remaining */
-#ifdef DEBUG
- guint32 rems=rem.tv_sec*1000 + rem.tv_nsec/1000000;
-
- g_message("%s: Still got %d ms to go", __func__, rems);
-#endif
- req=rem;
- goto again;
- }
-
- return 0;
-}
-
-void Sleep(guint32 ms)
-{
- SleepEx(ms, FALSE);
-}
-
-guint32 QueueUserAPC (WapiApcProc apc_callback, gpointer handle,
- gpointer param)
-{
- struct _WapiHandle_thread *thread_handle;
- gboolean ok;
-
- ok = _wapi_lookup_handle (handle, WAPI_HANDLE_THREAD,
- (gpointer *)&thread_handle);
- if (ok == FALSE) {
- g_warning ("%s: error looking up thread handle %p", __func__,
- handle);
- return (0);
- }
-
- _wapi_timed_thread_queue_apc (thread_handle->thread, apc_callback,
- param);
- return(1);
-}
-
-gboolean _wapi_thread_cur_apc_pending (void)
-{
- return(_wapi_thread_apc_pending (GetCurrentThread ()));
-}
-
-gboolean _wapi_thread_apc_pending (gpointer handle)
-{
- struct _WapiHandle_thread *thread_handle;
- gboolean ok;
-
- ok = _wapi_lookup_handle (handle, WAPI_HANDLE_THREAD,
- (gpointer *)&thread_handle);
- if (ok == FALSE) {
- g_warning ("%s: error looking up thread handle %p", __func__,
- handle);
- return (FALSE);
- }
-
- return(_wapi_timed_thread_apc_pending (thread_handle->thread));
-}
-
-gboolean _wapi_thread_dispatch_apc_queue (gpointer handle)
-{
- struct _WapiHandle_thread *thread_handle;
- gboolean ok;
-
- ok = _wapi_lookup_handle (handle, WAPI_HANDLE_THREAD,
- (gpointer *)&thread_handle);
- if (ok == FALSE) {
- g_warning ("%s: error looking up thread handle %p", __func__,
- handle);
- return (0);
- }
-
- _wapi_timed_thread_dispatch_apc_queue (thread_handle->thread);
- return(1);
-}
-
-void _wapi_thread_own_mutex (pthread_t tid, gpointer mutex)
-{
- struct _WapiHandle_thread *thread_handle;
- gboolean ok;
- gpointer thread;
-
- thread = _wapi_thread_handle_from_id (tid);
- if (thread == NULL) {
- g_warning ("%s: error looking up thread by ID", __func__);
- return;
- }
-
- ok = _wapi_lookup_handle (thread, WAPI_HANDLE_THREAD,
- (gpointer *)&thread_handle);
- if (ok == FALSE) {
- g_warning ("%s: error looking up thread handle %p", __func__,
- thread);
- return;
- }
-
- g_ptr_array_add (thread_handle->owned_mutexes, mutex);
-}
-
-void _wapi_thread_disown_mutex (pthread_t tid, gpointer mutex)
-{
- struct _WapiHandle_thread *thread_handle;
- gboolean ok;
- gpointer thread;
-
- thread = _wapi_thread_handle_from_id (tid);
- if (thread == NULL) {
- g_warning ("%s: error looking up thread by ID", __func__);
- return;
- }
-
- ok = _wapi_lookup_handle (thread, WAPI_HANDLE_THREAD,
- (gpointer *)&thread_handle);
- if (ok == FALSE) {
- g_warning ("%s: error looking up thread handle %p", __func__,
- thread);
- return;
- }
-
- g_ptr_array_remove (thread_handle->owned_mutexes, mutex);
-}
-
-
-
-#ifdef WITH_INCLUDED_LIBGC
-
-static void GC_suspend_handler (int sig)
-{
- struct _WapiHandle_thread *thread_handle;
- gpointer handle;
- gboolean ok;
-
- handle = GetCurrentThread ();
- ok = _wapi_lookup_handle (handle, WAPI_HANDLE_THREAD,
- (gpointer *)&thread_handle);
- if (ok == FALSE) {
- g_warning ("%s: error looking up thread handle %p", __func__,
- handle);
- return;
- }
-
- thread_handle->thread->stack_ptr = &ok;
- MONO_SEM_POST (&thread_handle->thread->suspended_sem);
-
- _wapi_timed_thread_suspend (thread_handle->thread);
-
- thread_handle->thread->stack_ptr = NULL;
-}
-
-static void gc_init (void)
-{
- struct sigaction act;
-
- act.sa_handler = GC_suspend_handler;
- g_assert (sigaction (SIGPWR, &act, NULL) == 0);
-}
-
-void mono_wapi_push_thread_stack (gpointer handle, gpointer stack_ptr)
-{
- struct _WapiHandle_thread *thread_handle;
- gboolean ok;
-
- ok = _wapi_lookup_handle (handle, WAPI_HANDLE_THREAD,
- (gpointer *)&thread_handle);
- if (ok == FALSE) {
- g_warning ("%s: error looking up thread handle %p", __func__,
- handle);
- return;
- }
-
- GC_push_all_stack (thread_handle->thread->stack_ptr, stack_ptr);
-}
-
-#endif /* WITH_INCLUDED_LIBGC */