Changeset 3d367ee2 in mainline for uspace/app/bdsh/cmds/modules/sleep/sleep.c

Timestamp:

2012-04-01T19:38:04Z (12 years ago)

Author:

Sean Bartell <wingedtachikoma@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

e4fbccd

Parents:

d9faae91

Message:

Implement the `sleep' command.

File:

• uspace/app/bdsh/cmds/modules/sleep/sleep.c (modified) (3 diffs)

uspace/app/bdsh/cmds/modules/sleep/sleep.c

@@ -27 +27 @@
  */
 
+#include <errno.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <unistd.h>
 #include "config.h"
 #include "util.h"
@@ -41 +43 @@
 void help_cmd_sleep(unsigned int level)
 {
-        printf("This is the %s help for '%s'.\n",
-                level ? EXT_HELP : SHORT_HELP, cmdname);
+        if (level == HELP_SHORT) {
+                printf("`%s' pauses for a given time interval\n", cmdname);
+        } else {
+                help_cmd_sleep(HELP_SHORT);
+                printf(
+                "Usage:  %s <duration>\n"
+                "The duration is an integer number of seconds.\n",
+                cmdname);
+        }
+
         return;
 }
@@ -49 +59 @@
 int cmd_sleep(char **argv)
 {
+        int ret;
         unsigned int argc;
-        unsigned int i;
+        uint32_t duration;
 
         /* Count the arguments */
-        for (argc = 0; argv[argc] != NULL; argc ++);
+        argc = cli_count_args(argv);
 
-        printf("%s %s\n", TEST_ANNOUNCE, cmdname);
-        printf("%d arguments passed to %s", argc - 1, cmdname);
-
-        if (argc < 2) {
-                printf("\n");
-                return CMD_SUCCESS;
+        if (argc != 2) {
+                printf("%s - incorrect number of arguments. Try `help %s'\n",
+                        cmdname, cmdname);
+                return CMD_FAILURE;
         }
 
-        printf(":\n");
-        for (i = 1; i < argc; i++)
-                printf("[%d] -> %s\n", i, argv[i]);
+        ret = str_uint32_t(argv[1], NULL, 10, true, &duration);
+        if (ret != EOK) {
+                printf("%s - invalid duration.\n", cmdname);
+                return CMD_FAILURE;
+        }
+
+        (void) usleep((useconds_t)duration * 1000000);
 
         return CMD_SUCCESS;