summaryrefslogtreecommitdiffstats
path: root/cpukit/posix/include/rtems/posix/condimpl.h
diff options
context:
space:
mode:
authorSebastian Huber <sebastian.huber@embedded-brains.de>2013-07-19 12:08:02 +0200
committerSebastian Huber <sebastian.huber@embedded-brains.de>2013-07-22 16:57:22 +0200
commit35210b128c28c1edd6b35aa97a949abf683f113a (patch)
treed421248270dbbd44c3ee1cf33d66e657569471ba /cpukit/posix/include/rtems/posix/condimpl.h
parentcpuuse: Add SMP support (diff)
downloadrtems-35210b128c28c1edd6b35aa97a949abf683f113a.tar.bz2
posix: Create condition variable impl header
Move implementation specific parts of cond.h and cond.inl into new header file condimpl.h. The cond.h contains now only the application visible API.
Diffstat (limited to 'cpukit/posix/include/rtems/posix/condimpl.h')
-rw-r--r--cpukit/posix/include/rtems/posix/condimpl.h202
1 files changed, 202 insertions, 0 deletions
diff --git a/cpukit/posix/include/rtems/posix/condimpl.h b/cpukit/posix/include/rtems/posix/condimpl.h
new file mode 100644
index 0000000000..0e6d3409c1
--- /dev/null
+++ b/cpukit/posix/include/rtems/posix/condimpl.h
@@ -0,0 +1,202 @@
+/**
+ * @file rtems/posix/cond.inl
+ *
+ * This include file contains the static inline implementation of the private
+ * inlined routines for POSIX condition variables.
+ */
+
+/*
+ * COPYRIGHT (c) 1989-2011.
+ * 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.
+ */
+
+#ifndef _RTEMS_POSIX_CONDIMPL_H
+#define _RTEMS_POSIX_CONDIMPL_H
+
+#include <rtems/posix/cond.h>
+#include <rtems/score/watchdog.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * Constant to indicate condition variable does not currently have
+ * a mutex assigned to it.
+ */
+
+#define POSIX_CONDITION_VARIABLES_NO_MUTEX 0
+
+/*
+ * The following defines the information control block used to manage
+ * this class of objects.
+ */
+
+POSIX_EXTERN Objects_Information _POSIX_Condition_variables_Information;
+
+/*
+ * The default condition variable attributes structure.
+ */
+
+extern const pthread_condattr_t _POSIX_Condition_variables_Default_attributes;
+
+/*
+ * @brief Initialization Necessary for this Manager
+ *
+ * _POSIX_Condition_variables_Manager_initialization
+ *
+ * DESCRIPTION:
+ *
+ * This routine performs the initialization necessary for this manager.
+ */
+
+void _POSIX_Condition_variables_Manager_initialization(void);
+
+/*
+ * _POSIX_Condition_variables_Allocate
+ *
+ * DESCRIPTION:
+ *
+ * This function allocates a condition variable control block from
+ * the inactive chain of free condition variable control blocks.
+ */
+
+RTEMS_INLINE_ROUTINE POSIX_Condition_variables_Control *
+ _POSIX_Condition_variables_Allocate( void );
+
+/*
+ * _POSIX_Condition_variables_Free
+ *
+ * DESCRIPTION:
+ *
+ * This routine frees a condition variable control block to the
+ * inactive chain of free condition variable control blocks.
+ */
+
+RTEMS_INLINE_ROUTINE void _POSIX_Condition_variables_Free (
+ POSIX_Condition_variables_Control *the_condition_variable
+);
+
+/*
+ * _POSIX_Condition_variables_Get
+ *
+ * DESCRIPTION:
+ *
+ * This function maps condition variable IDs to condition variable control
+ * blocks. If ID corresponds to a local condition variable, then it returns
+ * the_condition variable control pointer which maps to ID and location
+ * is set to OBJECTS_LOCAL. if the condition variable ID is global and
+ * resides on a remote node, then location is set to OBJECTS_REMOTE,
+ * and the_condition variable is undefined. Otherwise, location is set
+ * to OBJECTS_ERROR and the_condition variable is undefined.
+ */
+
+#if 0
+RTEMS_INLINE_ROUTINE POSIX_Condition_variables_Control *_POSIX_Condition_variables_Get (
+ Objects_Id *id,
+ Objects_Locations *location
+);
+#endif
+
+/*
+ * _POSIX_Condition_variables_Is_null
+ *
+ * DESCRIPTION:
+ *
+ * This function returns TRUE if the_condition variable is NULL
+ * and FALSE otherwise.
+ */
+
+RTEMS_INLINE_ROUTINE bool _POSIX_Condition_variables_Is_null (
+ POSIX_Condition_variables_Control *the_condition_variable
+);
+
+/**
+ * @brief Implements wake up version of the "signal" operation.
+ *
+ * DESCRIPTION:
+ *
+ * A support routine which implements guts of the broadcast and single task
+ * wake up version of the "signal" operation.
+ */
+int _POSIX_Condition_variables_Signal_support(
+ pthread_cond_t *cond,
+ bool is_broadcast
+);
+
+/**
+ * @brief POSIX condition variables wait support.
+ *
+ * DESCRIPTION:
+ *
+ * A support routine which implements guts of the blocking, non-blocking, and
+ * timed wait version of condition variable wait routines.
+ */
+int _POSIX_Condition_variables_Wait_support(
+ pthread_cond_t *cond,
+ pthread_mutex_t *mutex,
+ Watchdog_Interval timeout,
+ bool already_timedout
+);
+
+/*
+ * _POSIX_Condition_variables_Get
+ *
+ * DESCRIPTION:
+ *
+ * A support routine which translates the condition variable id into
+ * a local pointer. As a side-effect, it may create the condition
+ * variable.
+ */
+
+POSIX_Condition_variables_Control *_POSIX_Condition_variables_Get (
+ pthread_cond_t *cond,
+ Objects_Locations *location
+);
+
+/*
+ * _POSIX_Condition_variables_Allocate
+ */
+
+RTEMS_INLINE_ROUTINE POSIX_Condition_variables_Control
+ *_POSIX_Condition_variables_Allocate( void )
+{
+ return (POSIX_Condition_variables_Control *)
+ _Objects_Allocate( &_POSIX_Condition_variables_Information );
+}
+
+/*
+ * _POSIX_Condition_variables_Free
+ */
+
+RTEMS_INLINE_ROUTINE void _POSIX_Condition_variables_Free (
+ POSIX_Condition_variables_Control *the_condition_variable
+)
+{
+ _Objects_Free(
+ &_POSIX_Condition_variables_Information,
+ &the_condition_variable->Object
+ );
+}
+
+/*
+ * _POSIX_Condition_variables_Is_null
+ */
+
+RTEMS_INLINE_ROUTINE bool _POSIX_Condition_variables_Is_null (
+ POSIX_Condition_variables_Control *the_condition_variable
+)
+{
+ return !the_condition_variable;
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+/* end of include file */