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authorJoel Sherrill <joel.sherrill@OARcorp.com>1999-05-17 23:15:20 +0000
committerJoel Sherrill <joel.sherrill@OARcorp.com>1999-05-17 23:15:20 +0000
commit842db5f391f323b49ff2fc6157f89135d4662506 (patch)
tree3a30015625c2caa01e470b72fd98874663c2485f /cpukit/rtems/src/partgetbuffer.c
parentSplit Timer Manager into one routine per file. (diff)
downloadrtems-842db5f391f323b49ff2fc6157f89135d4662506.tar.bz2
Split Partition Manager into one routine per file.
Diffstat (limited to 'cpukit/rtems/src/partgetbuffer.c')
-rw-r--r--cpukit/rtems/src/partgetbuffer.c80
1 files changed, 80 insertions, 0 deletions
diff --git a/cpukit/rtems/src/partgetbuffer.c b/cpukit/rtems/src/partgetbuffer.c
new file mode 100644
index 0000000000..d62647b3f8
--- /dev/null
+++ b/cpukit/rtems/src/partgetbuffer.c
@@ -0,0 +1,80 @@
+/*
+ * Partition Manager
+ *
+ *
+ * COPYRIGHT (c) 1989-1998.
+ * On-Line Applications Research Corporation (OAR).
+ * Copyright assigned to U.S. Government, 1994.
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.OARcorp.com/rtems/license.html.
+ *
+ * $Id$
+ */
+
+#include <rtems/system.h>
+#include <rtems/rtems/status.h>
+#include <rtems/rtems/support.h>
+#include <rtems/score/address.h>
+#include <rtems/score/object.h>
+#include <rtems/rtems/part.h>
+#include <rtems/score/thread.h>
+#include <rtems/score/sysstate.h>
+
+/*PAGE
+ *
+ * rtems_partition_get_buffer
+ *
+ * This directive will obtain a buffer from a buffer partition.
+ *
+ * Input parameters:
+ * id - partition id
+ * buffer - pointer to buffer address
+ *
+ * Output parameters:
+ * buffer - pointer to buffer address filled in
+ * RTEMS_SUCCESSFUL - if successful
+ * error code - if unsuccessful
+ */
+
+rtems_status_code rtems_partition_get_buffer(
+ Objects_Id id,
+ void **buffer
+)
+{
+ register Partition_Control *the_partition;
+ Objects_Locations location;
+ void *the_buffer;
+
+ the_partition = _Partition_Get( id, &location );
+ switch ( location ) {
+ case OBJECTS_REMOTE:
+#if defined(RTEMS_MULTIPROCESSING)
+ _Thread_Executing->Wait.return_argument = buffer;
+ return(
+ _Partition_MP_Send_request_packet(
+ PARTITION_MP_GET_BUFFER_REQUEST,
+ id,
+ 0 /* Not used */
+ )
+ );
+#endif
+
+ case OBJECTS_ERROR:
+ return RTEMS_INVALID_ID;
+
+ case OBJECTS_LOCAL:
+ the_buffer = _Partition_Allocate_buffer( the_partition );
+ if ( the_buffer ) {
+ the_partition->number_of_used_blocks += 1;
+ _Thread_Enable_dispatch();
+ *buffer = the_buffer;
+ return RTEMS_SUCCESSFUL;
+ }
+ _Thread_Enable_dispatch();
+ return RTEMS_UNSATISFIED;
+ }
+
+ return RTEMS_INTERNAL_ERROR; /* unreached - only to remove warnings */
+}