Move NSH to apps/ as library

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3393 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 297 insertions, 0 deletions

diff --git a/apps/nshlib/nsh_proccmds.c b/apps/nshlib/nsh_proccmds.c
new file mode 100644
index 000000000..b49e114ae
--- /dev/null
+++ b/apps/nshlib/nsh_proccmds.c
@@ -0,0 +1,297 @@
+/****************************************************************************
+ * apps/nshlib/nsh_proccmds.c
+ *
+ *   Copyright (C) 2007-2009, 2011 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sched.h>
+#include <errno.h>
+
+#include "nsh.h"
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/* The returned value should be zero for sucess or TRUE or non zero for
+ * failure or FALSE.
+ */
+
+typedef int (*exec_t)(void);
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+static const char *g_statenames[] =
+{
+  "INVALID ",
+  "PENDING ",
+  "READY   ", 
+  "RUNNING ", 
+  "INACTIVE", 
+  "WAITSEM ", 
+#ifndef CONFIG_DISABLE_MQUEUE
+  "WAITSIG ", 
+#endif
+#ifndef CONFIG_DISABLE_MQUEUE
+  "MQNEMPTY", 
+  "MQNFULL "
+#endif
+};
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: ps_task
+ ****************************************************************************/
+
+#ifndef CONFIG_EXAMPLES_NSH_DISABLE_PS
+static void ps_task(FAR _TCB *tcb, FAR void *arg)
+{
+  struct nsh_vtbl_s *vtbl = (struct nsh_vtbl_s*)arg;
+  int i;
+
+  /* Show task status */
+
+  nsh_output(vtbl, "%5d %3d %4s %7s%c%c %8s ",
+             tcb->pid, tcb->sched_priority,
+             tcb->flags & TCB_FLAG_ROUND_ROBIN ? "RR  " : "FIFO",
+             tcb->flags & TCB_FLAG_PTHREAD ? "PTHREAD" : "TASK   ",
+             tcb->flags & TCB_FLAG_NONCANCELABLE ? 'N' : ' ',
+             tcb->flags & TCB_FLAG_CANCEL_PENDING ? 'P' : ' ',
+             g_statenames[tcb->task_state]);
+
+  /* Show task name and arguments */
+
+  nsh_output(vtbl, "%s(", tcb->argv[0]);
+
+  /* Special case 1st argument (no comma) */
+
+  if (tcb->argv[1])
+    {
+     nsh_output(vtbl, "%p", tcb->argv[1]);
+    }
+
+  /* Then any additional arguments */
+
+#if CONFIG_MAX_TASK_ARGS > 2
+  for (i = 2; i <= CONFIG_MAX_TASK_ARGS && tcb->argv[i]; i++)
+    {
+      nsh_output(vtbl, ", %p", tcb->argv[i]);
+     }
+#endif
+  nsh_output(vtbl, ")\n");
+}
+#endif
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: cmd_exec
+ ****************************************************************************/
+
+#ifndef CONFIG_EXAMPLES_NSH_DISABLE_EXEC
+int cmd_exec(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
+{
+  char *endptr;
+  long addr;
+
+  addr = strtol(argv[1], &endptr, 0);
+  if (!addr || endptr == argv[1] || *endptr != '\0')
+    {
+       nsh_output(vtbl, g_fmtarginvalid, argv[0]);
+       return ERROR;
+    }
+
+  nsh_output(vtbl, "Calling %p\n", (exec_t)addr);
+  return ((exec_t)addr)();
+}
+#endif
+
+/****************************************************************************
+ * Name: cmd_ps
+ ****************************************************************************/
+
+#ifndef CONFIG_EXAMPLES_NSH_DISABLE_PS
+int cmd_ps(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
+{
+  nsh_output(vtbl, "PID   PRI SCHD TYPE   NP STATE    NAME\n");
+  sched_foreach(ps_task, vtbl);
+  return OK;
+}
+#endif
+
+/****************************************************************************
+ * Name: cmd_kill
+ ****************************************************************************/
+
+#ifndef CONFIG_DISABLE_SIGNALS
+#ifndef CONFIG_EXAMPLES_NSH_DISABLE_KILL
+int cmd_kill(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
+{
+  char *ptr;
+  char *endptr;
+  long signal;
+  long pid;
+
+  /* Check incoming parameters.  The first parameter should be "-<signal>" */
+
+  ptr = argv[1];
+  if (*ptr != '-' || ptr[1] < '0' || ptr[1] > '9')
+    {
+      goto invalid_arg;
+    }
+
+  /* Extract the signal number */
+
+  signal = strtol(&ptr[1], &endptr, 0);
+
+  /* The second parameter should be <pid>  */
+
+  ptr = argv[2];
+  if (*ptr < '0' || *ptr > '9')
+    {
+      goto invalid_arg;
+    }
+
+  /* Extract athe pid */
+
+  pid = strtol(ptr, &endptr, 0);
+
+  /* Send the signal.  Kill return values:
+   *
+   *   EINVAL An invalid signal was specified.
+   *   EPERM  The process does not have permission to send the signal to any
+   *          of the target processes.
+   *   ESRCH  The pid or process group does not exist.
+   *   ENOSYS Do not support sending signals to process groups.
+   */
+
+  if (kill((pid_t)pid, (int)signal) == 0)
+    {
+      return OK;
+    }
+
+  switch (errno)
+    {
+    case EINVAL:
+      goto invalid_arg;
+
+    case ESRCH:
+      nsh_output(vtbl, g_fmtnosuch, argv[0], "task", argv[2]);
+      return ERROR;
+
+    case EPERM:
+    case ENOSYS:
+    default:
+      nsh_output(vtbl, g_fmtcmdfailed, argv[0], "kill", NSH_ERRNO);
+      return ERROR;
+    }
+
+invalid_arg:
+  nsh_output(vtbl, g_fmtarginvalid, argv[0]);
+  return ERROR;
+}
+#endif
+#endif
+
+/****************************************************************************
+ * Name: cmd_sleep
+ ****************************************************************************/
+
+#ifndef CONFIG_DISABLE_SIGNALS
+#ifndef CONFIG_EXAMPLES_NSH_DISABLE_SLEEP
+int cmd_sleep(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
+{
+  char *endptr;
+  long secs;
+
+  secs = strtol(argv[1], &endptr, 0);
+  if (!secs || endptr == argv[1] || *endptr != '\0')
+    {
+       nsh_output(vtbl, g_fmtarginvalid, argv[0]);
+       return ERROR;
+    }
+  sleep(secs);
+  return OK;
+}
+#endif
+#endif
+
+/****************************************************************************
+ * Name: cmd_usleep
+ ****************************************************************************/
+
+#ifndef CONFIG_DISABLE_SIGNALS
+#ifndef CONFIG_EXAMPLES_NSH_DISABLE_USLEEP
+int cmd_usleep(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
+{
+  char *endptr;
+  long usecs;
+
+  usecs = strtol(argv[1], &endptr, 0);
+  if (!usecs || endptr == argv[1] || *endptr != '\0')
+    {
+       nsh_output(vtbl, g_fmtarginvalid, argv[0]);
+       return ERROR;
+    }
+  usleep(usecs);
+  return OK;
+}
+#endif
+#endif