1 /**
2 * collectd - src/utils_cmd_flush.c
3 * Copyright (C) 2008 Sebastian Harl
4 * Copyright (C) 2008 Florian Forster
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 *
24 * Authors:
25 * Sebastian "tokkee" Harl <sh at tokkee.org>
26 * Florian "octo" Forster <octo at collectd.org>
27 **/
29 #include "collectd.h"
31 #include "common.h"
32 #include "plugin.h"
33 #include "utils_cmd_flush.h"
34 #include "utils_parse_option.h"
36 int handle_flush(FILE *fh, char *buffer) {
37 int success = 0;
38 int error = 0;
40 double timeout = 0.0;
41 char **plugins = NULL;
42 size_t plugins_num = 0;
43 char **identifiers = NULL;
44 size_t identifiers_num = 0;
46 #define PRINT_TO_SOCK(fh, ...) \
47 do { \
48 if (fprintf(fh, __VA_ARGS__) < 0) { \
49 char errbuf[1024]; \
50 WARNING("handle_flush: failed to write to socket #%i: %s", fileno(fh), \
51 sstrerror(errno, errbuf, sizeof(errbuf))); \
52 strarray_free(plugins, plugins_num); \
53 strarray_free(identifiers, identifiers_num); \
54 return -1; \
55 } \
56 fflush(fh); \
57 } while (0)
59 if ((fh == NULL) || (buffer == NULL))
60 return (-1);
62 DEBUG("utils_cmd_flush: handle_flush (fh = %p, buffer = %s);", (void *)fh,
63 buffer);
65 if (strncasecmp("FLUSH", buffer, strlen("FLUSH")) != 0) {
66 PRINT_TO_SOCK(fh, "-1 Cannot parse command.\n");
67 return (-1);
68 }
69 buffer += strlen("FLUSH");
71 while (*buffer != 0) {
72 char *opt_key;
73 char *opt_value;
74 int status;
76 opt_key = NULL;
77 opt_value = NULL;
78 status = parse_option(&buffer, &opt_key, &opt_value);
79 if (status != 0) {
80 PRINT_TO_SOCK(fh, "-1 Parsing options failed.\n");
81 strarray_free(plugins, plugins_num);
82 strarray_free(identifiers, identifiers_num);
83 return (-1);
84 }
86 if (strcasecmp("plugin", opt_key) == 0)
87 strarray_add(&plugins, &plugins_num, opt_value);
88 else if (strcasecmp("identifier", opt_key) == 0)
89 strarray_add(&identifiers, &identifiers_num, opt_value);
90 else if (strcasecmp("timeout", opt_key) == 0) {
91 char *endptr;
93 errno = 0;
94 endptr = NULL;
95 timeout = strtod(opt_value, &endptr);
97 if ((endptr == opt_value) || (errno != 0) || (!isfinite(timeout))) {
98 PRINT_TO_SOCK(fh, "-1 Invalid value for option `timeout': "
99 "%s\n",
100 opt_value);
101 strarray_free(plugins, plugins_num);
102 strarray_free(identifiers, identifiers_num);
103 return (-1);
104 } else if (timeout < 0.0) {
105 timeout = 0.0;
106 }
107 } else {
108 PRINT_TO_SOCK(fh, "-1 Cannot parse option %s\n", opt_key);
109 strarray_free(plugins, plugins_num);
110 strarray_free(identifiers, identifiers_num);
111 return (-1);
112 }
113 } /* while (*buffer != 0) */
115 for (size_t i = 0; (i == 0) || (i < plugins_num); i++) {
116 char *plugin = NULL;
118 if (plugins_num != 0)
119 plugin = plugins[i];
121 for (size_t j = 0; (j == 0) || (j < identifiers_num); j++) {
122 char *identifier = NULL;
123 int status;
125 if (identifiers_num != 0)
126 identifier = identifiers[j];
128 status = plugin_flush(plugin, DOUBLE_TO_CDTIME_T(timeout), identifier);
129 if (status == 0)
130 success++;
131 else
132 error++;
133 }
134 }
136 PRINT_TO_SOCK(fh, "0 Done: %i successful, %i errors\n", success, error);
138 strarray_free(plugins, plugins_num);
139 strarray_free(identifiers, identifiers_num);
140 return (0);
141 #undef PRINT_TO_SOCK
142 } /* int handle_flush */
144 /* vim: set sw=4 ts=4 tw=78 noexpandtab : */