forked from Imagelibrary/rtems
abff6d226a
Jennifer Averett <jennifer.averett@oarcorp.com> Add RTEMS Scheduler Simulator. This is the shell scripting portion. * .cvsignore, ChangeLog, Makefile.am, schedsim_priority/.cvsignore, schedsim_priority/Makefile.am, schedsim_priority/config.c, schedsim_priority/printheir_executing.c, schedsim_priority/schedsim.cc, schedsim_priority/wrap_thread_dispatch.c, scripts/script01, scripts/script02, scripts/script03, scripts/script04, scripts/script05, scripts/script06, shared/.cvsignore, shared/Makefile.am, shared/commands.c, shared/getopt.c, shared/lookup_semaphore.c, shared/lookup_task.c, shared/main_clocktick.c, shared/main_echo.c, shared/main_executing.c, shared/main_heir.c, shared/main_help.c, shared/main_rtemsinit.c, shared/main_semcreate.c, shared/main_semdelete.c, shared/main_semflush.c, shared/main_semobtain.c, shared/main_semrelease.c, shared/main_taskcreate.c, shared/main_taskdelete.c, shared/main_taskmode.c, shared/main_taskpriority.c, shared/main_taskresume.c, shared/main_tasksuspend.c, shared/main_taskwakeafter.c, shared/schedsim_shell.h, shared/shell_cmdset.c, shared/shell_makeargs.c, shared/include/shell.h, shared/include/newlib/_ansi.h, shared/include/newlib/getopt.h: New files.
86 lines
2.1 KiB
C
86 lines
2.1 KiB
C
/*
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* Task Delete Shell Command Implmentation
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*
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* COPYRIGHT (c) 1989-2010.
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* On-Line Applications Research Corporation (OAR).
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.com/license/LICENSE.
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*
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* $Id$
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdio.h>
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#include <rtems.h>
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#include "shell.h"
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#include <rtems/stringto.h>
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#include <schedsim_shell.h>
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#include <rtems/error.h>
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int rtems_shell_main_semaphore_obtain(
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int argc,
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char *argv[]
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)
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{
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rtems_id id;
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rtems_status_code status;
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long tmp;
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rtems_interval ticks;
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Thread_Control *caller;
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/* XXX for now, do not support polling */
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if (argc != 3) {
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fprintf( stderr, "%s: Usage name|id timeout\n", argv[0] );
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return -1;
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}
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if ( lookup_semaphore( argv[1], &id ) )
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return -1;
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if ( rtems_string_to_long(argv[2], &tmp, NULL, 0) ) {
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printf( "Ceiling argument (%s) is not a number\n", argv[1] );
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return -1;
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}
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ticks = tmp;
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/*
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* Now obtain the semaphore
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*
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* If the calling thread blocks, we will return as another thread
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* but with a "unsatisfied" return code. So we check that we did
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* a thread switch inside the semaphore obtain. If we did, then
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* just return successfully.
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*/
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caller = _Thread_Executing;
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printf("Obtain semaphore (0x%08x) with timeout %d\n", id, ticks );
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status = rtems_semaphore_obtain( id, RTEMS_DEFAULT_OPTIONS, ticks );
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if ( caller == _Thread_Executing ) {
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if ( status != RTEMS_SUCCESSFUL ) {
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fprintf(
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stderr,
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"Semaphore obtain(%s) returned %s\n",
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argv[1],
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rtems_status_text( status )
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);
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return -1;
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}
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}
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return 0;
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}
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rtems_shell_cmd_t rtems_shell_SEMAPHORE_OBTAIN_Command = {
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"semaphore_obtain", /* name */
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"semaphore_obtain name ticks", /* usage */
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"rtems", /* topic */
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rtems_shell_main_semaphore_obtain, /* command */
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NULL, /* alias */
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NULL /* next */
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};
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