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authorChris Johns <chrisj@rtems.org>2017-12-23 18:18:56 +1100
committerSebastian Huber <sebastian.huber@embedded-brains.de>2018-01-25 08:45:26 +0100
commit2afb22b7e1ebcbe40373ff7e0efae7d207c655a9 (patch)
tree44759efe9374f13200a97e96d91bd9a2b7e5ce2a /cpukit/include/rtems/rtems/eventimpl.h
parentMAINTAINERS: Add myself to Write After Approval. (diff)
downloadrtems-2afb22b7e1ebcbe40373ff7e0efae7d207c655a9.tar.bz2
Remove make preinstall
A speciality of the RTEMS build system was the make preinstall step. It copied header files from arbitrary locations into the build tree. The header files were included via the -Bsome/build/tree/path GCC command line option. This has at least seven problems: * The make preinstall step itself needs time and disk space. * Errors in header files show up in the build tree copy. This makes it hard for editors to open the right file to fix the error. * There is no clear relationship between source and build tree header files. This makes an audit of the build process difficult. * The visibility of all header files in the build tree makes it difficult to enforce API barriers. For example it is discouraged to use BSP-specifics in the cpukit. * An introduction of a new build system is difficult. * Include paths specified by the -B option are system headers. This may suppress warnings. * The parallel build had sporadic failures on some hosts. This patch removes the make preinstall step. All installed header files are moved to dedicated include directories in the source tree. Let @RTEMS_CPU@ be the target architecture, e.g. arm, powerpc, sparc, etc. Let @RTEMS_BSP_FAMILIY@ be a BSP family base directory, e.g. erc32, imx, qoriq, etc. The new cpukit include directories are: * cpukit/include * cpukit/score/cpu/@RTEMS_CPU@/include * cpukit/libnetworking The new BSP include directories are: * bsps/include * bsps/@RTEMS_CPU@/include * bsps/@RTEMS_CPU@/@RTEMS_BSP_FAMILIY@/include There are build tree include directories for generated files. The include directory order favours the most general header file, e.g. it is not possible to override general header files via the include path order. The "bootstrap -p" option was removed. The new "bootstrap -H" option should be used to regenerate the "headers.am" files. Update #3254.
Diffstat (limited to 'cpukit/include/rtems/rtems/eventimpl.h')
-rw-r--r--cpukit/include/rtems/rtems/eventimpl.h146
1 files changed, 146 insertions, 0 deletions
diff --git a/cpukit/include/rtems/rtems/eventimpl.h b/cpukit/include/rtems/rtems/eventimpl.h
new file mode 100644
index 0000000000..933ea0fe2b
--- /dev/null
+++ b/cpukit/include/rtems/rtems/eventimpl.h
@@ -0,0 +1,146 @@
+/**
+ * @file
+ *
+ * @ingroup ClassicEventImpl
+ *
+ * @brief Classic Event Implementation
+ */
+
+/* COPYRIGHT (c) 1989-2008.
+ * 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.
+ */
+
+#ifndef _RTEMS_RTEMS_EVENTIMPL_H
+#define _RTEMS_RTEMS_EVENTIMPL_H
+
+#include <rtems/rtems/event.h>
+#include <rtems/score/thread.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @defgroup ClassicEventImpl Classic Event Implementation
+ *
+ * @ingroup ClassicEvent
+ *
+ * @{
+ */
+
+/**
+ * This constant is passed as the event_in to the
+ * rtems_event_receive directive to determine which events are pending.
+ */
+#define EVENT_CURRENT 0
+
+/**
+ * The following constant is the value of an event set which
+ * has no events pending.
+ */
+#define EVENT_SETS_NONE_PENDING 0
+
+rtems_status_code _Event_Seize(
+ rtems_event_set event_in,
+ rtems_option option_set,
+ rtems_interval ticks,
+ rtems_event_set *event_out,
+ Thread_Control *executing,
+ Event_Control *event,
+ Thread_Wait_flags wait_class,
+ States_Control block_state,
+ ISR_lock_Context *lock_context
+);
+
+rtems_status_code _Event_Surrender(
+ Thread_Control *the_thread,
+ rtems_event_set event_in,
+ Event_Control *event,
+ Thread_Wait_flags wait_class,
+ ISR_lock_Context *lock_context
+);
+
+/**
+ * @brief Timeout Event
+ */
+void _Event_Timeout(
+ Objects_Id id,
+ void *arg
+);
+
+RTEMS_INLINE_ROUTINE void _Event_Initialize( Event_Control *event )
+{
+ event->pending_events = EVENT_SETS_NONE_PENDING;
+}
+
+/**
+ * @brief Checks if on events are posted in the event_set.
+ *
+ * This function returns TRUE if on events are posted in the event_set,
+ * and FALSE otherwise.
+ */
+RTEMS_INLINE_ROUTINE bool _Event_sets_Is_empty(
+ rtems_event_set the_event_set
+)
+{
+ return ( the_event_set == 0 );
+}
+
+/**
+ * @brief Posts the given new_events into the event_set passed in.
+ *
+ * This routine posts the given new_events into the event_set
+ * passed in. The result is returned to the user in event_set.
+ */
+RTEMS_INLINE_ROUTINE void _Event_sets_Post(
+ rtems_event_set the_new_events,
+ rtems_event_set *the_event_set
+)
+{
+ *the_event_set |= the_new_events;
+}
+
+/**
+ * @brief Returns the events in event_condition that are set in event_set.
+ *
+ * This function returns the events in event_condition which are
+ * set in event_set.
+ */
+RTEMS_INLINE_ROUTINE rtems_event_set _Event_sets_Get(
+ rtems_event_set the_event_set,
+ rtems_event_set the_event_condition
+)
+{
+ return ( the_event_set & the_event_condition );
+}
+
+/**
+ * @brief Removes the events in mask from the event_set passed in.
+ *
+ * This function removes the events in mask from the event_set
+ * passed in. The result is returned to the user in event_set.
+ */
+RTEMS_INLINE_ROUTINE rtems_event_set _Event_sets_Clear(
+ rtems_event_set the_event_set,
+ rtems_event_set the_mask
+)
+{
+ return ( the_event_set & ~(the_mask) );
+}
+
+/**@}*/
+
+#ifdef __cplusplus
+}
+#endif
+
+#if defined(RTEMS_MULTIPROCESSING)
+#include <rtems/rtems/eventmp.h>
+#endif
+
+#endif
+/* end of include file */