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Code Issues Releases Wiki Activity

Destroy wait conditions before exiting

Browse source 
We already do this for locks. Also rename SitIdleEvent
in WaitCond to be uniform with Lunix naming.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba 2010-10-17 08:16:46 +01:00
parent 1fdb436e78
commit 3a564ed5db
2 changed files with 14 additions and 17 deletions
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7
src/lock.h
View file

@ -27,12 +27,13 @@
# include <pthread.h>
typedef pthread_mutex_t Lock;
typedef pthread_cond_t WaitCondition;
# define lock_init(x) pthread_mutex_init(x, NULL)
# define lock_grab(x) pthread_mutex_lock(x)
# define lock_release(x) pthread_mutex_unlock(x)
# define lock_destroy(x) pthread_mutex_destroy(x)
# define cond_destroy(x) pthread_cond_destroy(x);
#else
@ -41,11 +42,13 @@ typedef pthread_mutex_t Lock;
#undef WIN32_LEAN_AND_MEAN
typedef CRITICAL_SECTION Lock;
typedef HANDLE WaitCondition;
# define lock_init(x) InitializeCriticalSection(x)
# define lock_grab(x) EnterCriticalSection(x)
# define lock_release(x) LeaveCriticalSection(x)
# define lock_destroy(x) DeleteCriticalSection(x)
# define cond_destroy(x) CloseHandle(*x);
#endif

24
src/search.cpp
View file

@ -96,15 +96,8 @@ namespace {
int ActiveThreads;
volatile bool AllThreadsShouldExit, AllThreadsShouldSleep;
Thread threads[MAX_THREADS];
Lock MPLock, WaitLock;
#if !defined(_MSC_VER)
pthread_cond_t WaitCond[MAX_THREADS];
#else
HANDLE SitIdleEvent[MAX_THREADS];
#endif
WaitCondition WaitCond[MAX_THREADS];
};
@ -2243,7 +2236,7 @@ split_point_start: // At split points actual search starts from here
pthread_cond_wait(&WaitCond[threadID], &WaitLock);
lock_release(&WaitLock);
#else
WaitForSingleObject(SitIdleEvent[threadID], INFINITE);
WaitForSingleObject(WaitCond[threadID], INFINITE);
#endif
}
@ -2306,10 +2299,6 @@ split_point_start: // At split points actual search starts from here
volatile int i;
bool ok;
#if !defined(_MSC_VER)
pthread_t pthread[1];
#endif
// Initialize global locks
lock_init(&MPLock);
lock_init(&WaitLock);
@ -2318,7 +2307,7 @@ split_point_start: // At split points actual search starts from here
#if !defined(_MSC_VER)
pthread_cond_init(&WaitCond[i], NULL);
#else
SitIdleEvent[i] = CreateEvent(0, FALSE, FALSE, 0);
WaitCond[i] = CreateEvent(0, FALSE, FALSE, 0);
#endif
// Initialize splitPoints[] locks
@ -2343,6 +2332,7 @@ split_point_start: // At split points actual search starts from here
{
#if !defined(_MSC_VER)
pthread_t pthread[1];
ok = (pthread_create(pthread, NULL, init_thread, (void*)(&i)) == 0);
#else
ok = (CreateThread(NULL, 0, init_thread, (LPVOID)(&i), 0, NULL) != NULL);
@ -2382,6 +2372,10 @@ split_point_start: // At split points actual search starts from here
lock_destroy(&WaitLock);
lock_destroy(&MPLock);
// Now we can safely destroy the wait conditions
for (int i = 0; i < MAX_THREADS; i++)
cond_destroy(&WaitCond[i]);
}
@ -2579,7 +2573,7 @@ split_point_start: // At split points actual search starts from here
pthread_cond_signal(&WaitCond[threadID]);
pthread_mutex_unlock(&WaitLock);
#else
SetEvent(SitIdleEvent[threadID]);
SetEvent(WaitCond[threadID]);
#endif
}