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authorSebastian Huber <sebastian.huber@embedded-brains.de>2018-09-13 06:19:05 +0200
committerSebastian Huber <sebastian.huber@embedded-brains.de>2018-10-04 08:02:28 +0200
commit242887bc5698ac84261625013cc39112d2ce38eb (patch)
tree45ae83c2e2aa28fcfdb4a8a62f04c7b0504f8e31 /cpukit/posix/src/psxtimercreate.c
parentbsps/mips: Remove unused command line defines (diff)
downloadrtems-242887bc5698ac84261625013cc39112d2ce38eb.tar.bz2
Rename files to make them unique within cpukit
This allows to build librtemscpu.a in one rush in the future.
Diffstat (limited to 'cpukit/posix/src/psxtimercreate.c')
-rw-r--r--cpukit/posix/src/psxtimercreate.c101
1 files changed, 101 insertions, 0 deletions
diff --git a/cpukit/posix/src/psxtimercreate.c b/cpukit/posix/src/psxtimercreate.c
new file mode 100644
index 0000000000..5123071d99
--- /dev/null
+++ b/cpukit/posix/src/psxtimercreate.c
@@ -0,0 +1,101 @@
+/**
+ * @file
+ *
+ * @brief Create a Per-Process Timer
+ * @ingroup POSIX_PRIV_TIMERS Timers
+ */
+
+/*
+ * 14.2.2 Create a Per-Process Timer, P1003.1b-1993, p. 264
+ *
+ * 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.org/license/LICENSE.
+ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <time.h>
+#include <errno.h>
+#include <signal.h>
+
+#include <rtems/system.h>
+#include <rtems/seterr.h>
+#include <rtems/score/thread.h>
+#include <rtems/posix/sigset.h>
+#include <rtems/posix/timerimpl.h>
+#include <rtems/score/watchdogimpl.h>
+
+int timer_create(
+ clockid_t clock_id,
+ struct sigevent *__restrict evp,
+ timer_t *__restrict timerid
+)
+{
+ POSIX_Timer_Control *ptimer;
+
+ if ( clock_id != CLOCK_REALTIME )
+ rtems_set_errno_and_return_minus_one( EINVAL );
+
+ if ( !timerid )
+ rtems_set_errno_and_return_minus_one( EINVAL );
+
+ /*
+ * The data of the structure evp are checked in order to verify if they
+ * are coherent.
+ */
+
+ if (evp != NULL) {
+ /* The structure has data */
+ if ( ( evp->sigev_notify != SIGEV_NONE ) &&
+ ( evp->sigev_notify != SIGEV_SIGNAL ) ) {
+ /* The value of the field sigev_notify is not valid */
+ rtems_set_errno_and_return_minus_one( EINVAL );
+ }
+
+ if ( !evp->sigev_signo )
+ rtems_set_errno_and_return_minus_one( EINVAL );
+
+ if ( !is_valid_signo(evp->sigev_signo) )
+ rtems_set_errno_and_return_minus_one( EINVAL );
+ }
+
+ /*
+ * Allocate a timer
+ */
+ ptimer = _POSIX_Timer_Allocate();
+ if ( !ptimer ) {
+ _Objects_Allocator_unlock();
+ rtems_set_errno_and_return_minus_one( EAGAIN );
+ }
+
+ /* The data of the created timer are stored to use them later */
+
+ ptimer->state = POSIX_TIMER_STATE_CREATE_NEW;
+ ptimer->thread_id = _Thread_Get_executing()->Object.id;
+
+ if ( evp != NULL ) {
+ ptimer->inf.sigev_notify = evp->sigev_notify;
+ ptimer->inf.sigev_signo = evp->sigev_signo;
+ ptimer->inf.sigev_value = evp->sigev_value;
+ }
+
+ ptimer->overrun = 0;
+ ptimer->timer_data.it_value.tv_sec = 0;
+ ptimer->timer_data.it_value.tv_nsec = 0;
+ ptimer->timer_data.it_interval.tv_sec = 0;
+ ptimer->timer_data.it_interval.tv_nsec = 0;
+
+ _Watchdog_Preinitialize( &ptimer->Timer, _Per_CPU_Get_snapshot() );
+ _Watchdog_Initialize( &ptimer->Timer, _POSIX_Timer_TSR );
+ _Objects_Open_u32(&_POSIX_Timer_Information, &ptimer->Object, 0);
+
+ *timerid = ptimer->Object.id;
+ _Objects_Allocator_unlock();
+ return 0;
+}