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-rw-r--r--cpukit/score/src/thread.c123
1 files changed, 123 insertions, 0 deletions
diff --git a/cpukit/score/src/thread.c b/cpukit/score/src/thread.c
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+++ b/cpukit/score/src/thread.c
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+/*
+ * Thread Handler
+ *
+ *
+ * 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.
+ *
+ * $Id$
+ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <rtems/system.h>
+#include <rtems/config.h>
+#include <rtems/score/apiext.h>
+#include <rtems/score/context.h>
+#include <rtems/score/interr.h>
+#include <rtems/score/isr.h>
+#include <rtems/score/object.h>
+#include <rtems/score/priority.h>
+#include <rtems/score/scheduler.h>
+#include <rtems/score/states.h>
+#include <rtems/score/sysstate.h>
+#include <rtems/score/thread.h>
+#include <rtems/score/threadq.h>
+#include <rtems/score/userext.h>
+#include <rtems/score/wkspace.h>
+#include <rtems/config.h>
+
+#if defined(RTEMS_SMP)
+ #include <rtems/bspsmp.h>
+#endif
+
+/*
+ * _Thread_Handler_initialization
+ *
+ * This routine initializes all thread manager related data structures.
+ *
+ * Input parameters: NONE
+ *
+ * Output parameters: NONE
+ */
+
+void _Thread_Handler_initialization(void)
+{
+ uint32_t ticks_per_timeslice;
+ uint32_t maximum_extensions;
+ uint32_t maximum_internal_threads;
+ #if defined(RTEMS_MULTIPROCESSING)
+ uint32_t maximum_proxies;
+ #endif
+
+ ticks_per_timeslice = Configuration.ticks_per_timeslice;
+ maximum_extensions = Configuration.maximum_extensions;
+ #if defined(RTEMS_MULTIPROCESSING)
+ maximum_proxies = _Configuration_MP_table->maximum_proxies;
+ #endif
+ /*
+ * BOTH stacks hooks must be set or both must be NULL.
+ * Do not allow mixture.
+ */
+ if ( !( (!Configuration.stack_allocate_hook)
+ == (!Configuration.stack_free_hook) ) )
+ _Internal_error_Occurred(
+ INTERNAL_ERROR_CORE,
+ true,
+ INTERNAL_ERROR_BAD_STACK_HOOK
+ );
+
+ _Thread_Dispatch_necessary = false;
+ _Thread_Executing = NULL;
+ _Thread_Heir = NULL;
+#if ( CPU_HARDWARE_FP == TRUE ) || ( CPU_SOFTWARE_FP == TRUE )
+ _Thread_Allocated_fp = NULL;
+#endif
+
+ _Thread_Maximum_extensions = maximum_extensions;
+
+ _Thread_Ticks_per_timeslice = ticks_per_timeslice;
+
+ #if defined(RTEMS_MULTIPROCESSING)
+ _Thread_MP_Handler_initialization( maximum_proxies );
+ #endif
+
+ /*
+ * Initialize the internal class of threads. We need an IDLE thread
+ * per CPU in an SMP system. In addition, if this is a loosely
+ * coupled multiprocessing system, account for the MPCI Server Thread.
+ */
+ #if defined(RTEMS_SMP)
+ maximum_internal_threads = rtems_smp_maximum_processors;
+ #else
+ maximum_internal_threads = 1;
+ #endif
+
+ #if defined(RTEMS_MULTIPROCESSING)
+ if ( _System_state_Is_multiprocessing )
+ maximum_internal_threads += 1;
+ #endif
+
+ _Objects_Initialize_information(
+ &_Thread_Internal_information,
+ OBJECTS_INTERNAL_API,
+ OBJECTS_INTERNAL_THREADS,
+ maximum_internal_threads,
+ sizeof( Thread_Control ),
+ /* size of this object's control block */
+ false, /* true if names for this object are strings */
+ 8 /* maximum length of each object's name */
+ #if defined(RTEMS_MULTIPROCESSING)
+ ,
+ false, /* true if this is a global object class */
+ NULL /* Proxy extraction support callout */
+ #endif
+ );
+
+}