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ntdll: Throw STATUS_RESOURCE_NOT_OWNED when it's impossible to acquire/release the SRWLock.

This commit is contained in:
Sebastian Lackner 2014-01-21 22:04:20 +01:00 committed by Alexandre Julliard
parent 77f871ab7c
commit 8ca96a9de0
1 changed files with 10 additions and 0 deletions
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10
dlls/ntdll/sync.c
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@ -1435,6 +1435,14 @@ DWORD WINAPI RtlRunOnceExecuteOnce( RTL_RUN_ONCE *once, PRTL_RUN_ONCE_INIT_FN fu
#define srwlock_key_shared(lock) (&lock->Ptr) #define srwlock_key_shared(lock) (&lock->Ptr)
#endif #endif
static inline void srwlock_check_invalid( unsigned int val )
{
/* Throw exception if it's impossible to acquire/release this lock. */
if ((val & SRWLOCK_MASK_EXCLUSIVE_QUEUE) == SRWLOCK_MASK_EXCLUSIVE_QUEUE ||
(val & SRWLOCK_MASK_SHARED_QUEUE) == SRWLOCK_MASK_SHARED_QUEUE)
RtlRaiseStatus(STATUS_RESOURCE_NOT_OWNED);
}
static inline unsigned int srwlock_lock_exclusive( unsigned int *dest, int incr ) static inline unsigned int srwlock_lock_exclusive( unsigned int *dest, int incr )
{ {
unsigned int val, tmp; unsigned int val, tmp;
@ -1445,6 +1453,7 @@ static inline unsigned int srwlock_lock_exclusive( unsigned int *dest, int incr
for (val = *dest;; val = tmp) for (val = *dest;; val = tmp)
{ {
tmp = val + incr; tmp = val + incr;
srwlock_check_invalid( tmp );
if ((tmp & SRWLOCK_MASK_EXCLUSIVE_QUEUE) && !(tmp & SRWLOCK_MASK_SHARED_QUEUE)) if ((tmp & SRWLOCK_MASK_EXCLUSIVE_QUEUE) && !(tmp & SRWLOCK_MASK_SHARED_QUEUE))
tmp |= SRWLOCK_MASK_IN_EXCLUSIVE; tmp |= SRWLOCK_MASK_IN_EXCLUSIVE;
if ((tmp = interlocked_cmpxchg( (int *)dest, tmp, val )) == val) if ((tmp = interlocked_cmpxchg( (int *)dest, tmp, val )) == val)
@ -1463,6 +1472,7 @@ static inline unsigned int srwlock_unlock_exclusive( unsigned int *dest, int inc
for (val = *dest;; val = tmp) for (val = *dest;; val = tmp)
{ {
tmp = val + incr; tmp = val + incr;
srwlock_check_invalid( tmp );
if (!(tmp & SRWLOCK_MASK_EXCLUSIVE_QUEUE)) if (!(tmp & SRWLOCK_MASK_EXCLUSIVE_QUEUE))
tmp &= SRWLOCK_MASK_SHARED_QUEUE; tmp &= SRWLOCK_MASK_SHARED_QUEUE;
if ((tmp = interlocked_cmpxchg( (int *)dest, tmp, val )) == val) if ((tmp = interlocked_cmpxchg( (int *)dest, tmp, val )) == val)