collectd.conf.pod: fix minor typos in ntpd plugin section

[collectd.git] / src / utils_cmd_flush.c

diff --git a/src/utils_cmd_flush.c b/src/utils_cmd_flush.c
index e7737a0..087fee3 100644 (file)
--- a/src/utils_cmd_flush.c
+++ b/src/utils_cmd_flush.c
@@ -1,6 +1,7 @@
 /**
  * collectd - src/utils_cmd_flush.c
  * Copyright (C) 2008  Sebastian Harl
+ * Copyright (C) 2008  Florian Forster
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
@@ -15,37 +16,140 @@
  * with this program; if not, write to the Free Software Foundation, Inc.,
  * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  *
- * Author:
+ * Authors:
  *   Sebastian "tokkee" Harl <sh at tokkee.org>
+ *   Florian "octo" Forster <octo at verplant.org>
  **/
 
 #include "collectd.h"
+#include "common.h"
 #include "plugin.h"
+#include "utils_parse_option.h"
+#include "utils_cmd_flush.h"
 
-int handle_flush (FILE *fh, char **fields, int fields_num)
+int handle_flush (FILE *fh, char *buffer)
 {
-       int timeout = -1;
+       int success = 0;
+       int error   = 0;
 
-       if ((fields_num != 1) && (fields_num != 2))
+       double timeout = 0.0;
+       char **plugins = NULL;
+       size_t plugins_num = 0;
+       char **identifiers = NULL;
+       size_t identifiers_num = 0;
+
+       size_t i;
+
+#define PRINT_TO_SOCK(fh, ...) \
+       do { \
+               if (fprintf (fh, __VA_ARGS__) < 0) { \
+                       char errbuf[1024]; \
+                       WARNING ("handle_flush: failed to write to socket #%i: %s", \
+                                       fileno (fh), sstrerror (errno, errbuf, sizeof (errbuf))); \
+                       strarray_free (plugins, plugins_num); \
+                       strarray_free (identifiers, identifiers_num); \
+                       return -1; \
+               } \
+               fflush(fh); \
+       } while (0)
+
+       if ((fh == NULL) || (buffer == NULL))
+               return (-1);
+
+       DEBUG ("utils_cmd_flush: handle_flush (fh = %p, buffer = %s);",
+                       (void *) fh, buffer);
+
+       if (strncasecmp ("FLUSH", buffer, strlen ("FLUSH")) != 0)
        {
-               DEBUG ("unixsock plugin: us_handle_flush: "
-                               "Wrong number of fields: %i", fields_num);
-               fprintf (fh, "-1 Wrong number of fields: Got %i, expected 1 or 2.\n",
-                               fields_num);
-               fflush (fh);
+               PRINT_TO_SOCK (fh, "-1 Cannot parse command.\n");
                return (-1);
        }
+       buffer += strlen ("FLUSH");
+
+       while (*buffer != 0)
+       {
+               char *opt_key;
+               char *opt_value;
+               int status;
+
+               opt_key = NULL;
+               opt_value = NULL;
+               status = parse_option (&buffer, &opt_key, &opt_value);
+               if (status != 0)
+               {
+                       PRINT_TO_SOCK (fh, "-1 Parsing options failed.\n");
+                       strarray_free (plugins, plugins_num);
+                       strarray_free (identifiers, identifiers_num);
+                       return (-1);
+               }
 
-       if (fields_num == 2)
-               timeout = atoi (fields[1]);
+               if (strcasecmp ("plugin", opt_key) == 0)
+                       strarray_add (&plugins, &plugins_num, opt_value);
+               else if (strcasecmp ("identifier", opt_key) == 0)
+                       strarray_add (&identifiers, &identifiers_num, opt_value);
+               else if (strcasecmp ("timeout", opt_key) == 0)
+               {
+                       char *endptr;
+
+                       errno = 0;
+                       endptr = NULL;
+                       timeout = strtod (opt_value, &endptr);
+
+                       if ((endptr == opt_value) || (errno != 0) || (!isfinite (timeout)))
+                       {
+                               PRINT_TO_SOCK (fh, "-1 Invalid value for option `timeout': "
+                                               "%s\n", opt_value);
+                               strarray_free (plugins, plugins_num);
+                               strarray_free (identifiers, identifiers_num);
+                               return (-1);
+                       }
+                       else if (timeout < 0.0)
+                       {
+                               timeout = 0.0;
+                       }
+               }
+               else
+               {
+                       PRINT_TO_SOCK (fh, "-1 Cannot parse option %s\n", opt_key);
+                       strarray_free (plugins, plugins_num);
+                       strarray_free (identifiers, identifiers_num);
+                       return (-1);
+               }
+       } /* while (*buffer != 0) */
+
+       for (i = 0; (i == 0) || (i < plugins_num); i++)
+       {
+               char *plugin = NULL;
+               int j;
+
+               if (plugins_num != 0)
+                       plugin = plugins[i];
+
+               for (j = 0; (j == 0) || (j < identifiers_num); j++)
+               {
+                       char *identifier = NULL;
+                       int status;
+
+                       if (identifiers_num != 0)
+                               identifier = identifiers[j];
+
+                       status = plugin_flush (plugin,
+                                       DOUBLE_TO_CDTIME_T (timeout),
+                                       identifier);
+                       if (status == 0)
+                               success++;
+                       else
+                               error++;
+               }
+       }
 
-       INFO ("unixsock plugin: flushing all data");
-       plugin_flush_all (timeout);
-       INFO ("unixsock plugin: finished flushing all data");
+       PRINT_TO_SOCK (fh, "0 Done: %i successful, %i errors\n",
+                       success, error);
 
-       fprintf (fh, "0 Done\n");
-       fflush (fh);
+       strarray_free (plugins, plugins_num);
+       strarray_free (identifiers, identifiers_num);
        return (0);
+#undef PRINT_TO_SOCK
 } /* int handle_flush */
 
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