summaryrefslogtreecommitdiffstats
path: root/cpukit/include/rtems/posix/timerimpl.h
diff options
context:
space:
mode:
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/posix/timerimpl.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/posix/timerimpl.h')
-rw-r--r--cpukit/include/rtems/posix/timerimpl.h134
1 files changed, 134 insertions, 0 deletions
diff --git a/cpukit/include/rtems/posix/timerimpl.h b/cpukit/include/rtems/posix/timerimpl.h
new file mode 100644
index 0000000000..42a814c992
--- /dev/null
+++ b/cpukit/include/rtems/posix/timerimpl.h
@@ -0,0 +1,134 @@
+/**
+ * @file
+ *
+ * @brief Inlined Routines from the POSIX Timer Manager
+ *
+ * This file contains the static inline implementation of the inlined routines
+ * from the POSIX Timer Manager.
+ */
+
+/*
+ * COPYRIGHT (c) 1989-2013.
+ * 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_POSIX_TIMERIMPL_H
+#define _RTEMS_POSIX_TIMERIMPL_H
+
+#include <rtems/posix/timer.h>
+#include <rtems/score/objectimpl.h>
+#include <rtems/score/watchdogimpl.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** Timer is free */
+#define POSIX_TIMER_STATE_FREE 0x01
+
+/** Created timer but not running */
+#define POSIX_TIMER_STATE_CREATE_NEW 0x02
+
+/** Created timer and running */
+#define POSIX_TIMER_STATE_CREATE_RUN 0x03
+
+/** Created, ran and stopped timer */
+#define POSIX_TIMER_STATE_CREATE_STOP 0x04
+
+/** Indicates that the fire time is relative to the current one */
+#define POSIX_TIMER_RELATIVE 0
+
+/*
+ * POSIX defines TIMER_ABSTIME but no constant for relative. So
+ * we have one internally but we need to be careful it has a different
+ * value.
+ */
+#if (POSIX_TIMER_RELATIVE == TIMER_ABSTIME)
+#error "POSIX_TIMER_RELATIVE == TIMER_ABSTIME"
+#endif
+
+/**
+ * The following defines the information control block used to manage
+ * this class of objects.
+ */
+extern Objects_Information _POSIX_Timer_Information;
+
+/**
+ * @brief POSIX Timer Allocate
+ *
+ * This function allocates a timer control block from
+ * the inactive chain of free timer control blocks.
+ */
+RTEMS_INLINE_ROUTINE POSIX_Timer_Control *_POSIX_Timer_Allocate( void )
+{
+ return (POSIX_Timer_Control *) _Objects_Allocate( &_POSIX_Timer_Information );
+}
+
+/**
+ * @brief POSIX Timer Free
+ *
+ * This routine frees a timer control block to the
+ * inactive chain of free timer control blocks.
+ */
+RTEMS_INLINE_ROUTINE void _POSIX_Timer_Free (
+ POSIX_Timer_Control *the_timer
+)
+{
+ _Objects_Free( &_POSIX_Timer_Information, &the_timer->Object );
+}
+
+void _POSIX_Timer_TSR( Watchdog_Control *the_watchdog );
+
+/**
+ * @brief POSIX Timer Get
+ *
+ * This function maps timer IDs to timer control blocks.
+ * If ID corresponds to a local timer, then it returns
+ * the timer control pointer which maps to ID and location
+ * is set to OBJECTS_LOCAL. Otherwise, location is set
+ * to OBJECTS_ERROR and the returned value is undefined.
+ */
+RTEMS_INLINE_ROUTINE POSIX_Timer_Control *_POSIX_Timer_Get (
+ timer_t id,
+ ISR_lock_Context *lock_context
+)
+{
+ return (POSIX_Timer_Control *) _Objects_Get(
+ (Objects_Id) id,
+ lock_context,
+ &_POSIX_Timer_Information
+ );
+}
+
+RTEMS_INLINE_ROUTINE Per_CPU_Control *_POSIX_Timer_Acquire_critical(
+ POSIX_Timer_Control *ptimer,
+ ISR_lock_Context *lock_context
+)
+{
+ Per_CPU_Control *cpu;
+
+ cpu = _Watchdog_Get_CPU( &ptimer->Timer );
+ _Watchdog_Per_CPU_acquire_critical( cpu, lock_context );
+
+ return cpu;
+}
+
+RTEMS_INLINE_ROUTINE void _POSIX_Timer_Release(
+ Per_CPU_Control *cpu,
+ ISR_lock_Context *lock_context
+)
+{
+ _Watchdog_Per_CPU_release_critical( cpu, lock_context );
+ _ISR_lock_ISR_enable( lock_context );
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+/* end of include file */