command parser: Add support for parser options.

[collectd.git] / src / utils_cmd_listval.c

diff --git a/src/utils_cmd_listval.c b/src/utils_cmd_listval.c
index c5f71a3..27b88cb 100644 (file)
--- a/src/utils_cmd_listval.c
+++ b/src/utils_cmd_listval.c
@@ -33,9 +33,23 @@
 #include "utils_cache.h"
 #include "utils_parse_option.h"
 
+cmd_status_t cmd_parse_listval (size_t argc, char **argv,
+    cmd_listval_t *ret_listval __attribute__((unused)),
+    const cmd_options_t *opts __attribute__((unused)),
+    cmd_error_handler_t *err)
+{
+  if (argc != 0)
+  {
+    cmd_error (CMD_PARSE_ERROR, err,
+       "Garbage after end of command: `%s'.", argv[0]);
+    return (CMD_PARSE_ERROR);
+  }
+
+  return (CMD_OK);
+} /* cmd_status_t cmd_parse_listval */
+
 #define free_everything_and_return(status) do { \
-    size_t j; \
-    for (j = 0; j < number; j++) { \
+    for (size_t j = 0; j < number; j++) { \
       sfree(names[j]); \
       names[j] = NULL; \
     } \
@@ -50,59 +64,53 @@
       char errbuf[1024]; \
       WARNING ("handle_listval: failed to write to socket #%i: %s", \
           fileno (fh), sstrerror (errno, errbuf, sizeof (errbuf))); \
-      free_everything_and_return (-1); \
+      free_everything_and_return (CMD_ERROR); \
     } \
     fflush(fh); \
   } while (0)
 
-int handle_listval (FILE *fh, char *buffer)
+cmd_status_t cmd_handle_listval (FILE *fh, char *buffer)
 {
-  char *command;
+  cmd_error_handler_t err = { cmd_error_fh, fh };
+  cmd_status_t status;
+  cmd_t cmd;
+
   char **names = NULL;
   cdtime_t *times = NULL;
   size_t number = 0;
-  size_t i;
-  int status;
 
   DEBUG ("utils_cmd_listval: handle_listval (fh = %p, buffer = %s);",
       (void *) fh, buffer);
 
-  command = NULL;
-  status = parse_string (&buffer, &command);
-  if (status != 0)
+  if ((status = cmd_parse (buffer, &cmd, NULL, &err)) != CMD_OK)
+    return (status);
+  if (cmd.type != CMD_LISTVAL)
   {
-    print_to_socket (fh, "-1 Cannot parse command.\n");
-    free_everything_and_return (-1);
-  }
-  assert (command != NULL);
-
-  if (strcasecmp ("LISTVAL", command) != 0)
-  {
-    print_to_socket (fh, "-1 Unexpected command: `%s'.\n", command);
-    free_everything_and_return (-1);
-  }
-
-  if (*buffer != 0)
-  {
-    print_to_socket (fh, "-1 Garbage after end of command: %s\n", buffer);
-    free_everything_and_return (-1);
+    cmd_error (CMD_UNKNOWN_COMMAND, &err,
+       "Unexpected command: `%s'.", CMD_TO_STRING (cmd.type));
+    free_everything_and_return (CMD_UNKNOWN_COMMAND);
   }
 
   status = uc_get_names (&names, &times, &number);
   if (status != 0)
   {
     DEBUG ("command listval: uc_get_names failed with status %i", status);
-    print_to_socket (fh, "-1 uc_get_names failed.\n");
-    free_everything_and_return (-1);
+    cmd_error (CMD_ERROR, &err, "uc_get_names failed.");
+    free_everything_and_return (CMD_ERROR);
   }
 
   print_to_socket (fh, "%i Value%s found\n",
       (int) number, (number == 1) ? "" : "s");
-  for (i = 0; i < number; i++)
+  for (size_t i = 0; i < number; i++)
     print_to_socket (fh, "%.3f %s\n", CDTIME_T_TO_DOUBLE (times[i]),
                names[i]);
 
-  free_everything_and_return (0);
-} /* int handle_listval */
+  free_everything_and_return (CMD_OK);
+} /* cmd_status_t cmd_handle_listval */
+
+void cmd_destroy_listval (cmd_listval_t *listval __attribute__((unused)))
+{
+  /* nothing to do */
+} /* void cmd_destroy_listval */
 
 /* vim: set sw=2 sts=2 ts=8 : */