[macruby-changes] [1923] MacRuby/branches/experimental/thread_pthread.c

24 Jun 2009

Revision: 1923
          http://trac.macosforge.org/projects/ruby/changeset/1923
Author:   lsansonetti@apple.com
Date:     2009-06-24 12:12:37 -0700 (Wed, 24 Jun 2009)
Log Message:
-----------
this file is not needed here

Removed Paths:
-------------
    MacRuby/branches/experimental/thread_pthread.c

Deleted: MacRuby/branches/experimental/thread_pthread.c
===================================================================

--- MacRuby/branches/experimental/thread_pthread.c	2009-06-24 12:49:05 UTC (rev 1922)
+++ MacRuby/branches/experimental/thread_pthread.c	2009-06-24 19:12:37 UTC (rev 1923)
@@ -1,620 +0,0 @@
-/* -*-c-*- */
-/**********************************************************************
-
-  thread_pthread.c -
-
-  $Author: nobu $
-
-  Copyright (C) 2004-2007 Koichi Sasada
-
-**********************************************************************/
-
-#ifdef THREAD_SYSTEM_DEPENDENT_IMPLEMENTATION
-
-void native_mutex_lock(pthread_mutex_t *lock);
-void native_mutex_unlock(pthread_mutex_t *lock);
-static int native_mutex_trylock(pthread_mutex_t *lock);
-static void native_mutex_initialize(pthread_mutex_t *lock);
-static void native_mutex_destroy(pthread_mutex_t *lock);
-
-static void native_cond_signal(pthread_cond_t *cond);
-static void native_cond_broadcast(pthread_cond_t *cond);
-static void native_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex);
-static void native_cond_initialize(pthread_cond_t *cond);
-static void native_cond_destroy(pthread_cond_t *cond);
-
-void
-native_mutex_lock(pthread_mutex_t *lock)
-{
-    int r;
-    if ((r = pthread_mutex_lock(lock)) != 0) {
-	rb_bug("pthread_mutex_lock: %d", r);
-    }
-}
-
-void
-native_mutex_unlock(pthread_mutex_t *lock)
-{
-    int r;
-    if ((r = pthread_mutex_unlock(lock)) != 0) {
-	rb_bug("native_mutex_unlock return non-zero: %d", r);
-    }
-}
-
-static inline int
-native_mutex_trylock(pthread_mutex_t *lock)
-{
-    int r;
-    if ((r = pthread_mutex_trylock(lock)) != 0) {
-	if (r == EBUSY) {
-	    return EBUSY;
-	}
-	else {
-	    rb_bug("native_mutex_trylock return non-zero: %d", r);
-	}
-    }
-    return 0;
-}
-
-static void
-native_mutex_initialize(pthread_mutex_t *lock)
-{
-    int r = pthread_mutex_init(lock, 0);
-    if (r != 0) {
-	rb_bug("native_mutex_initialize return non-zero: %d", r);
-    }
-}
-
-static void
-native_mutex_destroy(pthread_mutex_t *lock)
-{
-    int r = pthread_mutex_destroy(lock);
-    if (r != 0) {
-	rb_bug("native_mutex_destroy return non-zero: %d", r);
-    }
-}
-
-static void
-native_cond_initialize(pthread_cond_t *cond)
-{
-    int r = pthread_cond_init(cond, 0);
-    if (r != 0) {
-	rb_bug("native_cond_initialize return non-zero: %d", r);
-    }
-}
-
-static void
-native_cond_destroy(pthread_cond_t *cond)
-{
-    int r = pthread_cond_destroy(cond);
-    if (r != 0) {
-	rb_bug("native_cond_destroy return non-zero: %d", r);
-    }
-}
-
-static void
-native_cond_signal(pthread_cond_t *cond)
-{
-    pthread_cond_signal(cond);
-}
-
-#if 0
-static void
-native_cond_broadcast(pthread_cond_t *cond)
-{
-    pthread_cond_broadcast(cond);
-}
-#endif
-
-static void
-native_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex)
-{
-    pthread_cond_wait(cond, mutex);
-}
-
-
-#define native_cleanup_push pthread_cleanup_push
-#define native_cleanup_pop  pthread_cleanup_pop
-#define native_thread_yield() sched_yield()
-
-#ifndef __CYGWIN__
-static void add_signal_thread_list(rb_thread_t *th);
-#endif
-//static void remove_signal_thread_list(rb_thread_t *th);
-
-static rb_thread_lock_t signal_thread_list_lock;
-
-static pthread_key_t ruby_native_thread_key;
-
-static void
-null_func(int i)
-{
-    /* null */
-}
-
-static rb_thread_t *
-ruby_thread_from_native(void)
-{
-    return pthread_getspecific(ruby_native_thread_key);
-}
-
-static int
-ruby_thread_set_native(rb_thread_t *th)
-{
-    return pthread_setspecific(ruby_native_thread_key, th) == 0;
-}
-
-static void
-Init_native_thread(void)
-{
-    rb_thread_t *th = GET_THREAD();
-
-    pthread_key_create(&ruby_native_thread_key, NULL);
-    th->thread_id = pthread_self();
-    native_cond_initialize(&th->native_thread_data.sleep_cond);
-    ruby_thread_set_native(th);
-    native_mutex_initialize(&signal_thread_list_lock);
-    posix_signal(SIGVTALRM, null_func);
-}
-
-static void
-native_thread_destroy(rb_thread_t *th)
-{
-    pthread_mutex_destroy(&th->interrupt_lock);
-    pthread_cond_destroy(&th->native_thread_data.sleep_cond);
-}
-
-#define USE_THREAD_CACHE 0
-
-static void *
-thread_start_func_1(void *th_ptr)
-{
-#if WITH_OBJC
-    rb_objc_gc_register_thread();
-    rb_objc_release((void *)th_ptr);
-#endif
-#if USE_THREAD_CACHE
-  thread_start:
-#endif
-    {
-	rb_thread_t *th = th_ptr;
-	VALUE stack_start;
-
-	/* run */
-	thread_start_func_2(th, &stack_start, rb_ia64_bsp());
-    }
-#if USE_THREAD_CACHE
-    if (1) {
-	/* cache thread */
-	rb_thread_t *th;
-	static rb_thread_t *register_cached_thread_and_wait(void);
-	if ((th = register_cached_thread_and_wait()) != 0) {
-	    th_ptr = (void *)th;
-	    th->thread_id = pthread_self();
-	    goto thread_start;
-	}
-    }
-#endif
-#if WITH_OBJC
-    rb_objc_gc_unregister_thread();
-#endif
-    return 0;
-}
-
-void rb_thread_create_control_thread(void);
-
-struct cached_thread_entry {
-    volatile rb_thread_t **th_area;
-    pthread_cond_t *cond;
-    struct cached_thread_entry *next;
-};
-
-
-#if USE_THREAD_CACHE
-static pthread_mutex_t thread_cache_lock = PTHREAD_MUTEX_INITIALIZER;
-struct cached_thread_entry *cached_thread_root;
-
-static rb_thread_t *
-register_cached_thread_and_wait(void)
-{
-    pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
-    volatile rb_thread_t *th_area = 0;
-    struct cached_thread_entry *entry =
-      (struct cached_thread_entry *)malloc(sizeof(struct cached_thread_entry));
-
-    struct timeval tv;
-    struct timespec ts;
-    gettimeofday(&tv, 0);
-    ts.tv_sec = tv.tv_sec + 60;
-    ts.tv_nsec = tv.tv_usec * 1000;
-
-    pthread_mutex_lock(&thread_cache_lock);
-    {
-	entry->th_area = &th_area;
-	entry->cond = &cond;
-	entry->next = cached_thread_root;
-	cached_thread_root = entry;
-
-	pthread_cond_timedwait(&cond, &thread_cache_lock, &ts);
-
-	{
-	    struct cached_thread_entry *e = cached_thread_root;
-	    struct cached_thread_entry *prev = cached_thread_root;
-
-	    while (e) {
-		if (e == entry) {
-		    if (prev == cached_thread_root) {
-			cached_thread_root = e->next;
-		    }
-		    else {
-			prev->next = e->next;
-		    }
-		    break;
-		}
-		prev = e;
-		e = e->next;
-	    }
-	}
-
-	free(entry);
-	pthread_cond_destroy(&cond);
-    }
-    pthread_mutex_unlock(&thread_cache_lock);
-
-    return (rb_thread_t *)th_area;
-}
-#endif
-
-static int
-use_cached_thread(rb_thread_t *th)
-{
-    int result = 0;
-#if USE_THREAD_CACHE
-    struct cached_thread_entry *entry;
-
-    if (cached_thread_root) {
-	pthread_mutex_lock(&thread_cache_lock);
-	entry = cached_thread_root;
-	{
-	    if (cached_thread_root) {
-		cached_thread_root = entry->next;
-		*entry->th_area = th;
-		result = 1;
-	    }
-	}
-	if (result) {
-	    pthread_cond_signal(entry->cond);
-	}
-	pthread_mutex_unlock(&thread_cache_lock);
-    }
-#endif
-    return result;
-}
-
-#define CHECK_ERR(expr) \
-  { int err; if ((err = (expr)) != 0) { rb_bug("err: %d - %s", err, #expr); }}
-
-static int
-native_thread_create(rb_thread_t *th)
-{
-    int err = 0;
-
-    if (use_cached_thread(th)) {
-	thread_debug("create (use cached thread): %p\n", th);
-    }
-    else {
-	pthread_attr_t attr;
-	size_t stack_size = 512 * 1024; /* 512KB */
-        size_t space;
-
-#ifdef PTHREAD_STACK_MIN
-	if (stack_size < PTHREAD_STACK_MIN) {
-	    stack_size = PTHREAD_STACK_MIN * 2;
-	}
-#endif
-        space = stack_size/5;
-        if (space > 1024*1024) space = 1024*1024;
-        th->machine_stack_maxsize = stack_size - space;
-#ifdef __ia64
-        th->machine_stack_maxsize /= 2;
-        th->machine_register_stack_maxsize = th->machine_stack_maxsize;
-#endif
-
-	CHECK_ERR(pthread_attr_init(&attr));
-
-#ifdef PTHREAD_STACK_MIN
-	thread_debug("create - stack size: %lu\n", (unsigned long)stack_size);
-	CHECK_ERR(pthread_attr_setstacksize(&attr, stack_size));
-#endif
-
-	CHECK_ERR(pthread_attr_setinheritsched(&attr, PTHREAD_INHERIT_SCHED));
-	CHECK_ERR(pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED));
-
-	rb_objc_retain((void *)th);
-	err = pthread_create(&th->thread_id, &attr, thread_start_func_1, th);
-	thread_debug("create: %p (%d)", th, err);
-	CHECK_ERR(pthread_attr_destroy(&attr));
-
-	if (!err) {
-	    pthread_cond_init(&th->native_thread_data.sleep_cond, 0);
-	}
-	else {
-	    st_delete_wrap(th->vm->living_threads, th->self);
-	    th->status = THREAD_KILLED;
-	    rb_raise(rb_eThreadError, "can't create Thread (%d)", err);
-	}
-    }
-    return err;
-}
-
-static void
-native_thread_join(pthread_t th)
-{
-    int err = pthread_join(th, 0);
-    if (err) {
-	rb_raise(rb_eThreadError, "native_thread_join() failed (%d)", err);
-    }
-}
-
-static void
-native_thread_apply_priority(rb_thread_t *th)
-{
-#if defined(_POSIX_PRIORITY_SCHEDULING) && (_POSIX_PRIORITY_SCHEDULING > 0)
-    struct sched_param sp;
-    int policy;
-    int priority = 0 - th->priority;
-    int max, min;
-    pthread_getschedparam(th->thread_id, &policy, &sp);
-    max = sched_get_priority_max(policy);
-    min = sched_get_priority_min(policy);
-
-    if (min > priority) {
-	priority = min;
-    }
-    else if (max < priority) {
-	priority = max;
-    }
-
-    sp.sched_priority = priority;
-    pthread_setschedparam(th->thread_id, policy, &sp);
-#else
-    /* not touched */
-#endif
-}
-
-static void
-ubf_pthread_cond_signal(void *ptr)
-{
-    rb_thread_t *th = (rb_thread_t *)ptr;
-    thread_debug("ubf_pthread_cond_signal (%p)\n", th);
-    pthread_cond_signal(&th->native_thread_data.sleep_cond);
-}
-
-#ifndef __CYGWIN__
-static void
-ubf_select_each(rb_thread_t *th)
-{
-    thread_debug("ubf_select_each (%p)\n", (void *)th->thread_id);
-    if (th) {
-	pthread_kill(th->thread_id, SIGVTALRM);
-    }
-}
-
-static void
-ubf_select(void *ptr)
-{
-    rb_thread_t *th = (rb_thread_t *)ptr;
-    add_signal_thread_list(th);
-    ubf_select_each(th);
-}
-#else
-#define ubf_select 0
-#endif
-
-static void
-native_sleep(rb_thread_t *th, struct timeval *tv)
-{
-    int prev_status = th->status;
-    struct timespec ts;
-    struct timeval tvn;
-
-    if (tv) {
-	gettimeofday(&tvn, NULL);
-	ts.tv_sec = tvn.tv_sec + tv->tv_sec;
-	ts.tv_nsec = (tvn.tv_usec + tv->tv_usec) * 1000;
-        if (ts.tv_nsec >= 1000000000){
-	    ts.tv_sec += 1;
-	    ts.tv_nsec -= 1000000000;
-        }
-    }
-
-    th->status = THREAD_STOPPED;
-
-    thread_debug("native_sleep %ld\n", tv ? tv->tv_sec : -1);
-    GVL_UNLOCK_BEGIN();
-    {
-	pthread_mutex_lock(&th->interrupt_lock);
-	th->unblock.func = ubf_pthread_cond_signal;
-	th->unblock.arg = th;
-
-	if (RUBY_VM_INTERRUPTED(th)) {
-	    /* interrupted.  return immediate */
-	    thread_debug("native_sleep: interrupted before sleep\n");
-	}
-	else {
-	    if (tv == 0 || ts.tv_sec < tvn.tv_sec /* overflow */ ) {
-		int r;
-		thread_debug("native_sleep: pthread_cond_wait start\n");
-		r = pthread_cond_wait(&th->native_thread_data.sleep_cond,
-				  &th->interrupt_lock);
-                if (r) rb_bug("pthread_cond_wait: %d", r);
-		thread_debug("native_sleep: pthread_cond_wait end\n");
-	    }
-	    else {
-		int r;
-		thread_debug("native_sleep: pthread_cond_timedwait start (%ld, %ld)\n",
-			     (unsigned long)ts.tv_sec, ts.tv_nsec);
-		r = pthread_cond_timedwait(&th->native_thread_data.sleep_cond,
-					   &th->interrupt_lock, &ts);
-		if (r && r != ETIMEDOUT) rb_bug("pthread_cond_timedwait: %d", r);
-
-		thread_debug("native_sleep: pthread_cond_timedwait end (%d)\n", r);
-	    }
-	}
-	th->unblock.func = 0;
-	th->unblock.arg = 0;
-
-	pthread_mutex_unlock(&th->interrupt_lock);
-	th->status = prev_status;
-    }
-    GVL_UNLOCK_END();
-    RUBY_VM_CHECK_INTS();
-
-    thread_debug("native_sleep done\n");
-}
-
-struct signal_thread_list {
-    rb_thread_t *th;
-    struct signal_thread_list *prev;
-    struct signal_thread_list *next;
-};
-
-#ifndef __CYGWIN__
-static struct signal_thread_list signal_thread_list_anchor = {
-    0, 0, 0,
-};
-#endif
-
-#define FGLOCK(lock, body) do { \
-    native_mutex_lock(lock); \
-    { \
-	body; \
-    } \
-    native_mutex_unlock(lock); \
-} while (0)
-
-#if 0 /* for debug */
-static void
-print_signal_list(char *str)
-{
-    struct signal_thread_list *list =
-      signal_thread_list_anchor.next;
-    thread_debug("list (%s)> ", str);
-    while(list){
-	thread_debug("%p (%p), ", list->th, list->th->thread_id);
-	list = list->next;
-    }
-    thread_debug("\n");
-}
-#endif
-
-#ifndef __CYGWIN__
-static void
-add_signal_thread_list(rb_thread_t *th)
-{
-    if (!th->native_thread_data.signal_thread_list) {
-	FGLOCK(&signal_thread_list_lock, {
-	    struct signal_thread_list *list =
-	      malloc(sizeof(struct signal_thread_list));
-
-	    if (list == 0) {
-		fprintf(stderr, "[FATAL] failed to allocate memory\n");
-		exit(1);
-	    }
-
-	    list->th = th;
-
-	    list->prev = &signal_thread_list_anchor;
-	    list->next = signal_thread_list_anchor.next;
-	    if (list->next) {
-		list->next->prev = list;
-	    }
-	    signal_thread_list_anchor.next = list;
-	    th->native_thread_data.signal_thread_list = list;
-	});
-    }
-}
-#endif
-
-#if 0
-static void
-remove_signal_thread_list(rb_thread_t *th)
-{
-    if (th->native_thread_data.signal_thread_list) {
-	FGLOCK(&signal_thread_list_lock, {
-	    struct signal_thread_list *list =
-	      (struct signal_thread_list *)
-		th->native_thread_data.signal_thread_list;
-
-	    list->prev->next = list->next;
-	    if (list->next) {
-		list->next->prev = list->prev;
-	    }
-	    th->native_thread_data.signal_thread_list = 0;
-	    list->th = 0;
-	    free(list);
-	});
-    }
-    else {
-	/* */
-    }
-}
-#endif
-
-static pthread_t timer_thread_id;
-static void timer_thread_function(void);
-
-static void *
-thread_timer(void *dummy)
-{
-    while (system_working) {
-#ifdef HAVE_NANOSLEEP
-	struct timespec req, rem;
-	req.tv_sec = 0;
-	req.tv_nsec = 10 * 1000 * 1000;	/* 10 ms */
-	nanosleep(&req, &rem);
-#else
-	struct timeval tv;
-	tv.tv_sec = 0;
-	tv.tv_usec = 10000;     	/* 10 ms */
-	select(0, NULL, NULL, NULL, &tv);
-#endif
-#ifndef __CYGWIN__
-	if (signal_thread_list_anchor.next) {
-	    FGLOCK(&signal_thread_list_lock, {
-		struct signal_thread_list *list;
-		list = signal_thread_list_anchor.next;
-		while (list) {
-		    ubf_select_each(list->th);
-		    list = list->next;
-		}
-	    });
-	}
-#endif
-	timer_thread_function();
-    }
-    return NULL;
-}
-
-static void
-rb_thread_create_timer_thread(void)
-{
-    rb_enable_interrupt();
-
-    if (!timer_thread_id) {
-	pthread_attr_t attr;
-	int err;
-
-	pthread_attr_init(&attr);
-#ifdef PTHREAD_STACK_MIN
-	pthread_attr_setstacksize(&attr, PTHREAD_STACK_MIN);
-#endif
-	err = pthread_create(&timer_thread_id, &attr, thread_timer, 0);
-	if (err != 0) {
-	    rb_bug("rb_thread_create_timer_thread: return non-zero (%d)", err);
-	}
-    }
-    rb_disable_interrupt(); /* only timer thread recieve signal */
-}
-
-#endif /* THREAD_SYSTEM_DEPENDENT_IMPLEMENTATION */

    

[macruby-changes] [1923] MacRuby/branches/experimental/thread_pthread.c

source_changes＠macosforge.org