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Added support for converting a mutex id to a pointer and returning

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with interrupts disabled.
This commit is contained in:
Joel Sherrill
2000-07-06 19:33:52 +00:00
parent 21e2b2b9be
commit 3ef54dcc4c
2 changed files with 80 additions and 44 deletions
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62
c/src/exec/posix/inline/rtems/posix/mutex.inl
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@@ -41,39 +41,57 @@ RTEMS_INLINE_ROUTINE void _POSIX_Mutex_Free (
/*PAGE
*
* _POSIX_Mutex_Get
*
* NOTE: The support macro makes it possible for both to use exactly
* the same code to check for NULL id pointer and
* PTHREAD_MUTEX_INITIALIZER without adding overhead.
*/
#define ___POSIX_Mutex_Get_support( _id, _location ) \
do { \
int _status; \
\
if ( !_id ) { \
*_location = OBJECTS_ERROR; \
return (POSIX_Mutex_Control *) 0; \
} \
\
if ( *_id == PTHREAD_MUTEX_INITIALIZER ) { \
/* \
* Do an "auto-create" here. \
*/ \
\
_status = pthread_mutex_init( _id, 0 ); \
if ( _status ) { \
*_location = OBJECTS_ERROR; \
return (POSIX_Mutex_Control *) 0; \
} \
} \
} while (0)
RTEMS_INLINE_ROUTINE POSIX_Mutex_Control *_POSIX_Mutex_Get (
Objects_Id *id,
Objects_Locations *location
)
{
int status;
if ( !id ) {
*location = OBJECTS_ERROR;
return (POSIX_Mutex_Control *) 0;
}
if ( *id == PTHREAD_MUTEX_INITIALIZER ) {
/*
* Do an "auto-create" here.
*/
status = pthread_mutex_init( id, 0 );
if ( status ) {
*location = OBJECTS_ERROR;
return (POSIX_Mutex_Control *) 0;
}
}
/*
* Now call Objects_Get()
*/
___POSIX_Mutex_Get_support( id, location );
return (POSIX_Mutex_Control *)
_Objects_Get( &_POSIX_Mutex_Information, *id, location );
}
RTEMS_INLINE_ROUTINE POSIX_Mutex_Control *_POSIX_Mutex_Get_interrupt_disable (
Objects_Id *id,
Objects_Locations *location,
ISR_Level *level
)
{
___POSIX_Mutex_Get_support( id, location );
return (POSIX_Mutex_Control *)
_Objects_Get_isr_disable( &_POSIX_Mutex_Information, *id, location, level );
}
/*PAGE
*