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-rw-r--r--funcs/func_sysinfo.c122
1 files changed, 122 insertions, 0 deletions
diff --git a/funcs/func_sysinfo.c b/funcs/func_sysinfo.c
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+++ b/funcs/func_sysinfo.c
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+/*
+ * Asterisk -- An open source telephony toolkit.
+ *
+ * Copyright (C) 2007, Digium, Inc.
+ *
+ * See http://www.asterisk.org for more information about
+ * the Asterisk project. Please do not directly contact
+ * any of the maintainers of this project for assistance;
+ * the project provides a web site, mailing lists and IRC
+ * channels for your use.
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License Version 2. See the LICENSE file
+ * at the top of the source tree.
+ */
+
+/*! \file
+ *
+ * SYSINFO function to return various system data.
+ *
+ * \note Inspiration and Guidance from Russell
+ *
+ * \author Jeff Peeler
+ *
+ * \ingroup functions
+ */
+
+#include "asterisk.h"
+
+ASTERISK_FILE_VERSION(__FILE__, "$Revision: 87233 $")
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#if defined(HAVE_SYSINFO)
+#include <sys/sysinfo.h>
+#endif
+
+#include "asterisk/module.h"
+#include "asterisk/channel.h"
+#include "asterisk/pbx.h"
+#include "asterisk/logger.h"
+#include "asterisk/utils.h"
+#include "asterisk/app.h"
+
+static int sysinfo_helper(struct ast_channel *chan, const char *cmd, char *data,
+ char *buf, size_t len)
+{
+#if defined(HAVE_SYSINFO)
+ struct sysinfo sys_info;
+ if (sysinfo(&sys_info)) {
+ ast_log(LOG_ERROR, "FAILED to retrieve system information\n");
+ return -1;
+ }
+#endif
+ if (ast_strlen_zero(data)) {
+ ast_log(LOG_WARNING, "Syntax: ${SYSINFO(<parameter>)} - missing argument!)\n");
+ return -1;
+ } else if (!strcasecmp("loadavg", data)) {
+ double curloadavg;
+ getloadavg(&curloadavg, 1);
+ snprintf(buf, len, "%f", curloadavg);
+ } else if (!strcasecmp("numcalls", data)) {
+ snprintf(buf, len, "%d", ast_active_calls());
+ }
+#if defined(HAVE_SYSINFO)
+ else if (!strcasecmp("uptime", data)) { /* in hours */
+ snprintf(buf, len, "%ld", sys_info.uptime/3600);
+ } else if (!strcasecmp("totalram", data)) { /* in KiB */
+ snprintf(buf, len, "%ld",(sys_info.totalram / sys_info.mem_unit)/1024);
+ } else if (!strcasecmp("freeram", data)) { /* in KiB */
+ snprintf(buf, len, "%ld",(sys_info.freeram / sys_info.mem_unit)/1024);
+ } else if (!strcasecmp("bufferram", data)) { /* in KiB */
+ snprintf(buf, len, "%ld",(sys_info.bufferram / sys_info.mem_unit)/1024);
+ } else if (!strcasecmp("totalswap", data)) { /* in KiB */
+ snprintf(buf, len, "%ld",(sys_info.totalswap / sys_info.mem_unit)/1024);
+ } else if (!strcasecmp("freeswap", data)) { /* in KiB */
+ snprintf(buf, len, "%ld",(sys_info.freeswap / sys_info.mem_unit)/1024);
+ } else if (!strcasecmp("numprocs", data)) {
+ snprintf(buf, len, "%d", sys_info.procs);
+ }
+#endif
+ else {
+ ast_log(LOG_ERROR, "Unknown sysinfo parameter type '%s'.\n", data);
+ return -1;
+ }
+
+ return 0;
+}
+
+static struct ast_custom_function sysinfo_function = {
+ .name = "SYSINFO",
+ .synopsis = "Returns system information specified by parameter.",
+ .syntax = "SYSINFO(<parameter>)",
+ .read = sysinfo_helper,
+ .desc =
+"Returns information from a given parameter\n"
+" Options:\n"
+" loadavg - system load average from past minute\n"
+" numcalls - number of active calls currently in progress\n"
+" uptime - system uptime in hours\n"
+" totalram - total usable main memory size in KiB\n"
+" freeram - available memory size in KiB\n"
+" bufferram - memory used by buffers in KiB\n"
+" totalswap - total swap space size in KiB\n"
+" freeswap - free swap space still available in KiB\n"
+" numprocs - number of current processes\n",
+};
+
+static int unload_module(void)
+{
+ return ast_custom_function_unregister(&sysinfo_function);
+}
+
+static int load_module(void)
+{
+ return ast_custom_function_register(&sysinfo_function);
+}
+
+AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "System information related functions");
+