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author | Joel Sherrill <joel.sherrill@OARcorp.com> | 2008-01-09 22:08:31 +0000 |
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committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 2008-01-09 22:08:31 +0000 |
commit | 4d3200628dc294e793b5a7512141de4c1f09649c (patch) | |
tree | 4e6d12167019f6de6fb1f6cbf330911911db4671 /cpukit/posix/src/mutexget.c | |
parent | 2008-01-09 Joel Sherrill <joel.sherrill@oarcorp.com> (diff) | |
download | rtems-4d3200628dc294e793b5a7512141de4c1f09649c.tar.bz2 |
2008-01-09 Joel Sherrill <joel.sherrill@OARcorp.com>
* posix/Makefile.am, posix/include/rtems/posix/cond.h,
posix/include/rtems/posix/mutex.h, posix/inline/rtems/posix/cond.inl,
posix/inline/rtems/posix/mutex.inl: Do not include POSIX Mutex or
Condition Variable object get helpers because they are more
complicated than the norm. They can implicitly perform a create. They
cross the line as being too complex and large to inline since they
negatively impact size and binary test coverage.
* posix/src/condget.c, posix/src/mutexget.c: New files.
Diffstat (limited to 'cpukit/posix/src/mutexget.c')
-rw-r--r-- | cpukit/posix/src/mutexget.c | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/cpukit/posix/src/mutexget.c b/cpukit/posix/src/mutexget.c new file mode 100644 index 0000000000..4a05ddd9a2 --- /dev/null +++ b/cpukit/posix/src/mutexget.c @@ -0,0 +1,84 @@ +/* + * Convert POSIX Mutex ID to local object pointer + * + * COPYRIGHT (c) 1989-2007. + * On-Line Applications Research Corporation (OAR). + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.com/license/LICENSE. + * + * $Id$ + */ + +#if HAVE_CONFIG_H +#include "config.h" +#endif + +#include <errno.h> +#include <pthread.h> + +#include <rtems/system.h> +#include <rtems/score/coremutex.h> +#if defined(RTEMS_MULTIPROCESSING) +#include <rtems/score/mpci.h> +#endif +#include <rtems/posix/mutex.h> + + +/* + * _POSIX_Mutex_Get_support + * + * 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( (pthread_mutex_t *)_id, 0 ); \ + if ( _status ) { \ + *_location = OBJECTS_ERROR; \ + return (POSIX_Mutex_Control *) 0; \ + } \ + } \ + } while (0) + +POSIX_Mutex_Control *_POSIX_Mutex_Get ( + pthread_mutex_t *mutex, + Objects_Locations *location +) +{ + Objects_Id *id = (Objects_Id *)mutex; + + ___POSIX_Mutex_Get_support( id, location ); + + return (POSIX_Mutex_Control *) + _Objects_Get( &_POSIX_Mutex_Information, *id, location ); +} + +POSIX_Mutex_Control *_POSIX_Mutex_Get_interrupt_disable ( + pthread_mutex_t *mutex, + Objects_Locations *location, + ISR_Level *level +) +{ + Objects_Id *id = (Objects_Id *)mutex; + + ___POSIX_Mutex_Get_support( id, location ); + + return (POSIX_Mutex_Control *) + _Objects_Get_isr_disable( &_POSIX_Mutex_Information, *id, location, level ); +} |