From 6244e502cc12a7b8c5698740d3b5b355c1695e37 Mon Sep 17 00:00:00 2001
From: ko1 <ko1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Mon, 27 Aug 2007 16:48:14 +0000
Subject: * thread.c: fix Mutex to be interruptable lock. * thread_win32.ci,
 thread_win32.h, thread_pthread.ci, thread_pthread.h:   prepare
 native_cond_*() which are based on pthread_cond_*() spec. * prelude.rb: fix
 Mutex#synchronize method. * vm_core.h, include/ruby/intern.h: change unblock
 function interface   (to pass some user data). * file.c, process.c: ditto. *
 benchmark/bm_vm2_mutex.rb: add a benchmark for mutex. *
 benchmark/bm_vm3_thread_mutex.rb: add a benchmark for mutex   with
 contension. * benchmark/run.rb: fix to remove ENV['RUBYLIB'] for matzruby. *
 test/ruby/test_thread.rb: add a test. * common.mk: fix benchmark options.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@13290 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 thread_win32.ci | 89 ++++++++++++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 85 insertions(+), 4 deletions(-)

(limited to 'thread_win32.ci')

diff --git a/thread_win32.ci b/thread_win32.ci
index 3bdb2e4276..46adc01028 100644
--- a/thread_win32.ci
+++ b/thread_win32.ci
@@ -122,7 +122,7 @@ w32_wait_events(HANDLE *events, int count, DWORD timeout, rb_thread_t *th)
     return ret;
 }
 
-static void ubf_handle(rb_thread_t *th);
+static void ubf_handle(rb_thread_t *th, void *ptr);
 #define ubf_select ubf_handle
 
 int
@@ -136,7 +136,7 @@ rb_w32_wait_events(HANDLE *events, int num, DWORD timeout)
 {
     int ret;
 
-    BLOCKING_REGION(ret = rb_w32_wait_events_blocking(events, num, timeout), ubf_handle);
+    BLOCKING_REGION(ret = rb_w32_wait_events_blocking(events, num, timeout), ubf_handle, 0);
     return ret;
 }
 
@@ -187,7 +187,7 @@ rb_w32_Sleep(unsigned long msec)
 {
     int ret;
 
-    BLOCKING_REGION(ret = rb_w32_sleep(msec), ubf_handle);
+    BLOCKING_REGION(ret = rb_w32_sleep(msec), ubf_handle, 0);
     return ret;
 }
 
@@ -309,6 +309,87 @@ native_mutex_destroy(rb_thread_lock_t *lock)
 #endif
 }
 
+struct cond_event_entry {
+    struct cond_event_entry* next;
+    HANDLE event;
+};
+
+struct rb_thread_cond_struct {
+    struct cond_event_entry *next;
+    struct cond_event_entry *last;
+};
+
+void
+native_cond_signal(rb_thread_cond_t *cond)
+{
+    /* cond is guarded by mutex */
+    struct cond_event_entry *e = cond->next;
+
+    if (e) {
+	cond->next = e->next;
+	SetEvent(e->event);
+    }
+    else {
+	rb_bug("native_cond_signal: no pending threads");
+    }
+}
+
+void
+native_cond_broadcast(rb_thread_cond_t *cond)
+{
+    /* cond is guarded by mutex */
+    struct cond_event_entry *e = cond->next;
+    cond->next = 0;
+
+    while (e) {
+	SetEvent(e->event);
+	e = e->next;
+    }
+}
+
+void
+native_cond_wait(rb_thread_cond_t *cond, rb_thread_lock_t *mutex)
+{
+    DWORD r;
+    struct cond_event_entry entry;
+
+    entry.next = 0;
+    entry.event = CreateEvent(0, FALSE, FALSE, 0);
+
+    /* cond is guarded by mutex */
+    if (cond->next) {
+	cond->last->next = &entry;
+	cond->last = &entry;
+    }
+    else {
+	cond->next = &entry;
+	cond->last = &entry;
+    }
+
+    native_mutex_unlock(mutex);
+    {
+	r = WaitForSingleObject(entry.event, INFINITE);
+	if (r != WAIT_OBJECT_0) {
+	    rb_bug("native_cond_wait: WaitForSingleObject returns %d", r);
+	}
+    }
+    native_mutex_lock(mutex);
+
+    w32_close_handle(entry.event);
+}
+
+void
+native_cond_initialize(rb_thread_cond_t *cond)
+{
+    cond->next = 0;
+    cond->last = 0;
+}
+
+void
+native_cond_destroy(rb_thread_cond_t *cond)
+{
+    /* */
+}
 
 static void
 native_thread_destroy(rb_thread_t *th)
@@ -384,7 +465,7 @@ native_thread_apply_priority(rb_thread_t *th)
 }
 
 static void
-ubf_handle(rb_thread_t *th)
+ubf_handle(rb_thread_t *th, void *ptr)
 {
     thread_debug("ubf_handle: %p\n", th);
     w32_set_event(th->native_thread_data.interrupt_event);
-- 
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