X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=src%2Futils_cmd_flush.c;fp=src%2Futils_cmd_flush.c;h=089ab7065e360f3acdbcbdec3e59ce3107832931;hb=1cf67d3e29da8ce7bdb29bc2fb8b1f0c1ca96e39;hp=0000000000000000000000000000000000000000;hpb=9caf56be59e558bc2fc4eaee3178580910fed869;p=pkg-collectd.git

diff --git a/src/utils_cmd_flush.c b/src/utils_cmd_flush.c
new file mode 100644
index 0000000..089ab70
--- /dev/null
+++ b/src/utils_cmd_flush.c
@@ -0,0 +1,189 @@
+/**
+ * collectd - src/utils_cmd_flush.c
+ * Copyright (C) 2008       Sebastian Harl
+ * Copyright (C) 2008       Florian Forster
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *   Sebastian "tokkee" Harl <sh at tokkee.org>
+ *   Florian "octo" Forster <octo at collectd.org>
+ **/
+
+#include "collectd.h"
+#include "common.h"
+#include "plugin.h"
+#include "utils_parse_option.h"
+
+#define print_to_socket(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))); \
+			return -1; \
+		} \
+		fflush(fh); \
+	} while (0)
+
+static int add_to_array (char ***array, int *array_num, char *value)
+{
+	char **temp;
+
+	temp = (char **) realloc (*array, sizeof (char *) * (*array_num + 1));
+	if (temp == NULL)
+		return (-1);
+
+	*array = temp;
+	(*array)[*array_num] = value;
+	(*array_num)++;
+
+	return (0);
+} /* int add_to_array */
+
+int handle_flush (FILE *fh, char *buffer)
+{
+	int success = 0;
+	int error   = 0;
+
+	double timeout = 0.0;
+	char **plugins = NULL;
+	int plugins_num = 0;
+	char **identifiers = NULL;
+	int identifiers_num = 0;
+
+	int i;
+
+	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)
+	{
+		print_to_socket (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_socket (fh, "-1 Parsing options failed.\n");
+			sfree (plugins);
+			sfree (identifiers);
+			return (-1);
+		}
+
+		if (strcasecmp ("plugin", opt_key) == 0)
+		{
+			add_to_array (&plugins, &plugins_num, opt_value);
+		}
+		else if (strcasecmp ("identifier", opt_key) == 0)
+		{
+			add_to_array (&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_socket (fh, "-1 Invalid value for option `timeout': "
+						"%s\n", opt_value);
+				sfree (plugins);
+				sfree (identifiers);
+				return (-1);
+			}
+			else if (timeout < 0.0)
+			{
+				timeout = 0.0;
+			}
+		}
+		else
+		{
+			print_to_socket (fh, "-1 Cannot parse option %s\n", opt_key);
+			sfree (plugins);
+			sfree (identifiers);
+			return (-1);
+		}
+	} /* while (*buffer != 0) */
+
+	/* Add NULL entries for `any plugin' and/or `any value' if nothing was
+	 * specified. */
+	if (plugins_num == 0)
+		add_to_array (&plugins, &plugins_num, NULL);
+
+	if (identifiers_num == 0)
+		add_to_array (&identifiers, &identifiers_num, NULL);
+
+	for (i = 0; i < plugins_num; i++)
+	{
+		char *plugin;
+		int j;
+
+		plugin = plugins[i];
+
+		for (j = 0; j < identifiers_num; j++)
+		{
+			char *identifier;
+			int status;
+
+			identifier = identifiers[j];
+			status = plugin_flush (plugin,
+					DOUBLE_TO_CDTIME_T (timeout),
+					identifier);
+			if (status == 0)
+				success++;
+			else
+				error++;
+		}
+	}
+
+	if ((success + error) > 0)
+	{
+		print_to_socket (fh, "0 Done: %i successful, %i errors\n",
+				success, error);
+	}
+	else
+	{
+		plugin_flush (NULL, DOUBLE_TO_CDTIME_T (timeout), NULL);
+		print_to_socket (fh, "0 Done\n");
+	}
+
+	sfree (plugins);
+	sfree (identifiers);
+	return (0);
+} /* int handle_flush */
+
+/* vim: set sw=4 ts=4 tw=78 noexpandtab : */
+