1 /**
2 * collectd - src/utils_cms_listval.c
3 * Copyright (C) 2008 Florian octo Forster
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; only version 2 of the License is applicable.
8 *
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
17 *
18 * Author:
19 * Florian octo Forster <octo at verplant.org>
20 **/
22 #include "collectd.h"
23 #include "common.h"
24 #include "plugin.h"
26 #include "utils_cmd_listval.h"
27 #include "utils_cache.h"
28 #include "utils_parse_option.h"
30 #define free_everything_and_return(status) do { \
31 size_t j; \
32 for (j = 0; j < number; j++) { \
33 sfree(names[j]); \
34 names[j] = NULL; \
35 } \
36 sfree(names); \
37 sfree(times); \
38 return (status); \
39 } while (0)
41 #define print_to_socket(fh, ...) \
42 do { \
43 if (fprintf (fh, __VA_ARGS__) < 0) { \
44 char errbuf[1024]; \
45 WARNING ("handle_listval: failed to write to socket #%i: %s", \
46 fileno (fh), sstrerror (errno, errbuf, sizeof (errbuf))); \
47 free_everything_and_return (-1); \
48 } \
49 fflush(fh); \
50 } while (0)
52 int handle_listval (FILE *fh, char *buffer)
53 {
54 char *command;
55 char **names = NULL;
56 cdtime_t *times = NULL;
57 size_t number = 0;
58 size_t i;
59 int status;
61 DEBUG ("utils_cmd_listval: handle_listval (fh = %p, buffer = %s);",
62 (void *) fh, buffer);
64 command = NULL;
65 status = parse_string (&buffer, &command);
66 if (status != 0)
67 {
68 print_to_socket (fh, "-1 Cannot parse command.\n");
69 free_everything_and_return (-1);
70 }
71 assert (command != NULL);
73 if (strcasecmp ("LISTVAL", command) != 0)
74 {
75 print_to_socket (fh, "-1 Unexpected command: `%s'.\n", command);
76 free_everything_and_return (-1);
77 }
79 if (*buffer != 0)
80 {
81 print_to_socket (fh, "-1 Garbage after end of command: %s\n", buffer);
82 free_everything_and_return (-1);
83 }
85 status = uc_get_names (&names, ×, &number);
86 if (status != 0)
87 {
88 DEBUG ("command listval: uc_get_names failed with status %i", status);
89 print_to_socket (fh, "-1 uc_get_names failed.\n");
90 free_everything_and_return (-1);
91 }
93 print_to_socket (fh, "%i Value%s found\n",
94 (int) number, (number == 1) ? "" : "s");
95 for (i = 0; i < number; i++)
96 print_to_socket (fh, "%.3f %s\n", CDTIME_T_TO_DOUBLE (times[i]),
97 names[i]);
99 free_everything_and_return (0);
100 } /* int handle_listval */
102 /* vim: set sw=2 sts=2 ts=8 : */