223 lines
6.9 KiB
C
223 lines
6.9 KiB
C
/****************************************************************************
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* examples/nsh/nsh_proccmds.c
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*
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* Copyright (C) 2007-2009 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <sched.h>
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#include "nsh.h"
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/****************************************************************************
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* Definitions
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****************************************************************************/
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/****************************************************************************
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* Private Types
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****************************************************************************/
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/* The returned value should be zero for sucess or TRUE or non zero for
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* failure or FALSE.
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*/
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typedef int (*exec_t)(void);
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/****************************************************************************
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* Private Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Private Data
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****************************************************************************/
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static const char *g_statenames[] =
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{
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"INVALID ",
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"PENDING ",
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"READY ",
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"RUNNING ",
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"INACTIVE",
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"WAITSEM ",
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#ifndef CONFIG_DISABLE_MQUEUE
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"WAITSIG ",
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#endif
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#ifndef CONFIG_DISABLE_MQUEUE
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"MQNEMPTY",
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"MQNFULL "
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#endif
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};
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/****************************************************************************
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* Public Data
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****************************************************************************/
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: ps_task
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****************************************************************************/
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#ifndef CONFIG_EXAMPLES_NSH_DISABLE_PS
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static void ps_task(FAR _TCB *tcb, FAR void *arg)
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{
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struct nsh_vtbl_s *vtbl = (struct nsh_vtbl_s*)arg;
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int i;
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/* Show task status */
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nsh_output(vtbl, "%5d %3d %4s %7s%c%c %8s ",
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tcb->pid, tcb->sched_priority,
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tcb->flags & TCB_FLAG_ROUND_ROBIN ? "RR " : "FIFO",
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tcb->flags & TCB_FLAG_PTHREAD ? "PTHREAD" : "TASK ",
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tcb->flags & TCB_FLAG_NONCANCELABLE ? 'N' : ' ',
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tcb->flags & TCB_FLAG_CANCEL_PENDING ? 'P' : ' ',
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g_statenames[tcb->task_state]);
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/* Show task name and arguments */
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nsh_output(vtbl, "%s(", tcb->argv[0]);
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/* Special case 1st argument (no comma) */
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if (tcb->argv[1])
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{
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nsh_output(vtbl, "%p", tcb->argv[1]);
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}
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/* Then any additional arguments */
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#if CONFIG_MAX_TASK_ARGS > 2
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for (i = 2; i <= CONFIG_MAX_TASK_ARGS && tcb->argv[i]; i++)
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{
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nsh_output(vtbl, ", %p", tcb->argv[i]);
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}
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#endif
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nsh_output(vtbl, ")\n");
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}
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#endif
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: cmd_exec
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****************************************************************************/
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#ifndef CONFIG_EXAMPLES_NSH_DISABLE_EXEC
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int cmd_exec(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
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{
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char *endptr;
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long addr;
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addr = strtol(argv[1], &endptr, 0);
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if (!addr || endptr == argv[1] || *endptr != '\0')
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{
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nsh_output(vtbl, g_fmtarginvalid, argv[0]);
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return ERROR;
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}
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nsh_output(vtbl, "Calling %p\n", (exec_t)addr);
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return ((exec_t)addr)();
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}
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#endif
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/****************************************************************************
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* Name: cmd_ps
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****************************************************************************/
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#ifndef CONFIG_EXAMPLES_NSH_DISABLE_PS
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int cmd_ps(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
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{
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nsh_output(vtbl, "PID PRI SCHD TYPE NP STATE NAME\n");
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sched_foreach(ps_task, vtbl);
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return OK;
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}
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#endif
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/****************************************************************************
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* Name: cmd_sleep
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****************************************************************************/
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#ifndef CONFIG_DISABLE_SIGNALS
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#ifndef CONFIG_EXAMPLES_NSH_DISABLE_SLEEP
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int cmd_sleep(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
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{
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char *endptr;
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long secs;
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secs = strtol(argv[1], &endptr, 0);
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if (!secs || endptr == argv[1] || *endptr != '\0')
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{
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nsh_output(vtbl, g_fmtarginvalid, argv[0]);
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return ERROR;
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}
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sleep(secs);
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return OK;
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}
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#endif
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#endif
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/****************************************************************************
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* Name: cmd_usleep
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****************************************************************************/
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#ifndef CONFIG_DISABLE_SIGNALS
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#ifndef CONFIG_EXAMPLES_NSH_DISABLE_USLEEP
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int cmd_usleep(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
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{
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char *endptr;
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long usecs;
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usecs = strtol(argv[1], &endptr, 0);
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if (!usecs || endptr == argv[1] || *endptr != '\0')
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{
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nsh_output(vtbl, g_fmtarginvalid, argv[0]);
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return ERROR;
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}
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usleep(usecs);
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return OK;
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}
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#endif
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#endif
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