diff options
author | Joel Sherrill <joel.sherrill@OARcorp.com> | 1999-11-02 18:46:30 +0000 |
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committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 1999-11-02 18:46:30 +0000 |
commit | 43ed93524d8cdd91ded531e0f657f42d2bd0d780 (patch) | |
tree | 390912b9dc73bb643f937f5108df9880d43c4809 /cpukit/posix/src | |
parent | Split key.c into multiple files. (diff) | |
download | rtems-43ed93524d8cdd91ded531e0f657f42d2bd0d780.tar.bz2 |
Missed these in the initial split up.
Diffstat (limited to 'cpukit/posix/src')
-rw-r--r-- | cpukit/posix/src/conddestroy.c | 76 | ||||
-rw-r--r-- | cpukit/posix/src/condinit.c | 101 |
2 files changed, 177 insertions, 0 deletions
diff --git a/cpukit/posix/src/conddestroy.c b/cpukit/posix/src/conddestroy.c new file mode 100644 index 0000000000..abfe07fc74 --- /dev/null +++ b/cpukit/posix/src/conddestroy.c @@ -0,0 +1,76 @@ +/* + * $Id$ + */ + +#include <pthread.h> +#include <errno.h> + +#include <rtems/system.h> +#include <rtems/score/object.h> +#include <rtems/score/states.h> +#include <rtems/score/watchdog.h> +#include <rtems/posix/cond.h> +#include <rtems/posix/time.h> +#include <rtems/posix/mutex.h> + +/*PAGE + * + * 11.4.2 Initializing and Destroying a Condition Variable, + * P1003.1c/Draft 10, p. 87 + */ + +int pthread_cond_destroy( + pthread_cond_t *cond +) +{ + register POSIX_Condition_variables_Control *the_cond; + Objects_Locations location; + + the_cond = _POSIX_Condition_variables_Get( cond, &location ); + switch ( location ) { + case OBJECTS_REMOTE: +#if defined(RTEMS_MULTIPROCESSING) + _Thread_Dispatch(); + return POSIX_MP_NOT_IMPLEMENTED(); + return EINVAL; +#endif + + case OBJECTS_ERROR: + return EINVAL; + + + case OBJECTS_LOCAL: + + if ( _Thread_queue_First( &the_cond->Wait_queue ) ) { + _Thread_Enable_dispatch(); + return EBUSY; + } + + _Objects_Close( + &_POSIX_Condition_variables_Information, + &the_cond->Object + ); + + _POSIX_Condition_variables_Free( the_cond ); + +#if defined(RTEMS_MULTIPROCESSING) + if ( the_cond->process_shared == PTHREAD_PROCESS_SHARED ) { + + _Objects_MP_Close( + &_POSIX_Condition_variables_Information, + the_cond->Object.id + ); + + _POSIX_Condition_variables_MP_Send_process_packet( + POSIX_CONDITION_VARIABLES_MP_ANNOUNCE_DELETE, + the_cond->Object.id, + 0, /* Not used */ + 0 /* Not used */ + ); + } +#endif + _Thread_Enable_dispatch(); + return 0; + } + return POSIX_BOTTOM_REACHED(); +} diff --git a/cpukit/posix/src/condinit.c b/cpukit/posix/src/condinit.c new file mode 100644 index 0000000000..37b11878b0 --- /dev/null +++ b/cpukit/posix/src/condinit.c @@ -0,0 +1,101 @@ +/* + * $Id$ + */ + +#include <pthread.h> +#include <errno.h> + +#include <rtems/system.h> +#include <rtems/score/object.h> +#include <rtems/score/states.h> +#include <rtems/score/watchdog.h> +#include <rtems/posix/cond.h> +#include <rtems/posix/time.h> +#include <rtems/posix/mutex.h> + +/*PAGE + * + * 11.4.2 Initializing and Destroying a Condition Variable, + * P1003.1c/Draft 10, p. 87 + */ + +int pthread_cond_init( + pthread_cond_t *cond, + const pthread_condattr_t *attr +) +{ + POSIX_Condition_variables_Control *the_cond; + const pthread_condattr_t *the_attr; + + if ( attr ) the_attr = attr; + else the_attr = &_POSIX_Condition_variables_Default_attributes; + + /* + * XXX: Be careful about attributes when global!!! + */ + + if ( the_attr->process_shared == PTHREAD_PROCESS_SHARED ) + return POSIX_MP_NOT_IMPLEMENTED(); + + if ( !the_attr->is_initialized ) + return EINVAL; + + _Thread_Disable_dispatch(); + + the_cond = _POSIX_Condition_variables_Allocate(); + + if ( !the_cond ) { + _Thread_Enable_dispatch(); + return ENOMEM; + } + +#if defined(RTEMS_MULTIPROCESSING) + if ( the_attr->process_shared == PTHREAD_PROCESS_SHARED && + !( _Objects_MP_Allocate_and_open( &_POSIX_Condition_variables_Information, + 0, the_cond->Object.id, FALSE ) ) ) { + _POSIX_Condition_variables_Free( the_cond ); + _Thread_Enable_dispatch(); + return EAGAIN; + } +#endif + + the_cond->process_shared = the_attr->process_shared; + + the_cond->Mutex = POSIX_CONDITION_VARIABLES_NO_MUTEX; + +/* XXX some more initialization might need to go here */ + _Thread_queue_Initialize( + &the_cond->Wait_queue, + OBJECTS_POSIX_CONDITION_VARIABLES, + THREAD_QUEUE_DISCIPLINE_FIFO, + STATES_WAITING_FOR_CONDITION_VARIABLE, +#if defined(RTEMS_MULTIPROCESSING) + _POSIX_Condition_variables_MP_Send_extract_proxy, +#else + NULL, +#endif + ETIMEDOUT + ); + + _Objects_Open( + &_POSIX_Condition_variables_Information, + &the_cond->Object, + 0 + ); + + *cond = the_cond->Object.id; + +#if defined(RTEMS_MULTIPROCESSING) + if ( the_attr->process_shared == PTHREAD_PROCESS_SHARED ) + _POSIX_Condition_variables_MP_Send_process_packet( + POSIX_CONDITION_VARIABLES_MP_ANNOUNCE_CREATE, + the_cond->Object.id, + 0, /* Name not used */ + 0 /* Not used */ + ); +#endif + + _Thread_Enable_dispatch(); + + return 0; +} |