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FSCORE-606 (Win) bridge fails because session read lock failure

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This commit is contained in:
Jeff Lenk 2010-05-20 08:05:28 -05:00
parent e15abcf9aa
commit f8f91362f0
2 changed files with 19 additions and 5 deletions
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1
libs/apr/include/arch/win32/apr_arch_thread_rwlock.h
View File

@ -24,6 +24,7 @@ struct apr_thread_rwlock_t {
HANDLE write_mutex; HANDLE write_mutex;
HANDLE read_event; HANDLE read_event;
LONG readers; LONG readers;
CRITICAL_SECTION read_section;
}; };
#endif /* THREAD_RWLOCK_H */ #endif /* THREAD_RWLOCK_H */

21
libs/apr/locks/win32/thread_rwlock.c
View File

@ -28,6 +28,8 @@ static apr_status_t thread_rwlock_cleanup(void *data)
if (! CloseHandle(rwlock->read_event)) if (! CloseHandle(rwlock->read_event))
return apr_get_os_error(); return apr_get_os_error();
DeleteCriticalSection(&rwlock->read_section);
if (! CloseHandle(rwlock->write_mutex)) if (! CloseHandle(rwlock->write_mutex))
return apr_get_os_error(); return apr_get_os_error();
@ -53,6 +55,8 @@ APR_DECLARE(apr_status_t)apr_thread_rwlock_create(apr_thread_rwlock_t **rwlock,
return apr_get_os_error(); return apr_get_os_error();
} }
InitializeCriticalSection(&(*rwlock)->read_section);
apr_pool_cleanup_register(pool, *rwlock, thread_rwlock_cleanup, apr_pool_cleanup_register(pool, *rwlock, thread_rwlock_cleanup,
apr_pool_cleanup_null); apr_pool_cleanup_null);
@ -62,10 +66,14 @@ APR_DECLARE(apr_status_t)apr_thread_rwlock_create(apr_thread_rwlock_t **rwlock,
static apr_status_t apr_thread_rwlock_rdlock_core(apr_thread_rwlock_t *rwlock, static apr_status_t apr_thread_rwlock_rdlock_core(apr_thread_rwlock_t *rwlock,
DWORD milliseconds) DWORD milliseconds)
{ {
DWORD code = WaitForSingleObject(rwlock->write_mutex, milliseconds); DWORD code;
EnterCriticalSection(&rwlock->read_section);
code = WaitForSingleObject(rwlock->write_mutex, milliseconds);
if (code == WAIT_FAILED || code == WAIT_TIMEOUT) if (code == WAIT_FAILED || code == WAIT_TIMEOUT) {
LeaveCriticalSection(&rwlock->read_section);
return APR_FROM_OS_ERROR(code); return APR_FROM_OS_ERROR(code);
}
/* We've successfully acquired the writer mutex, we can't be locked /* We've successfully acquired the writer mutex, we can't be locked
* for write, so it's OK to add the reader lock. The writer mutex * for write, so it's OK to add the reader lock. The writer mutex
@ -73,12 +81,17 @@ static apr_status_t apr_thread_rwlock_rdlock_core(apr_thread_rwlock_t *rwlock,
*/ */
InterlockedIncrement(&rwlock->readers); InterlockedIncrement(&rwlock->readers);
if (! ResetEvent(rwlock->read_event)) if (! ResetEvent(rwlock->read_event)) {
LeaveCriticalSection(&rwlock->read_section);
return apr_get_os_error(); return apr_get_os_error();
}
if (! ReleaseMutex(rwlock->write_mutex)) if (! ReleaseMutex(rwlock->write_mutex)) {
LeaveCriticalSection(&rwlock->read_section);
return apr_get_os_error(); return apr_get_os_error();
}
LeaveCriticalSection(&rwlock->read_section);
return APR_SUCCESS; return APR_SUCCESS;
} }