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authorJoel Sherrill <joel.sherrill@OARcorp.com>1999-11-02 18:46:30 +0000
committerJoel Sherrill <joel.sherrill@OARcorp.com>1999-11-02 18:46:30 +0000
commit43ed93524d8cdd91ded531e0f657f42d2bd0d780 (patch)
tree390912b9dc73bb643f937f5108df9880d43c4809 /cpukit/posix/src/condinit.c
parentSplit key.c into multiple files. (diff)
downloadrtems-43ed93524d8cdd91ded531e0f657f42d2bd0d780.tar.bz2
Missed these in the initial split up.
Diffstat (limited to 'cpukit/posix/src/condinit.c')
-rw-r--r--cpukit/posix/src/condinit.c101
1 files changed, 101 insertions, 0 deletions
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;
+}