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501915f0a9
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@89439 65c4cc65-6c06-0410-ace0-fbb531ad65f3
117 lines
3.6 KiB
C
117 lines
3.6 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 2007, Digium, Inc.
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*! \file
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*
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* SYSINFO function to return various system data.
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*
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* \note Inspiration and Guidance from Russell
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*
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* \author Jeff Peeler
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*
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* \ingroup functions
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*/
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#include "asterisk.h"
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ASTERISK_FILE_VERSION(__FILE__, "$Revision: 87233 $")
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#if defined(HAVE_SYSINFO)
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#include <sys/sysinfo.h>
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#endif
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#include "asterisk/module.h"
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#include "asterisk/pbx.h"
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static int sysinfo_helper(struct ast_channel *chan, const char *cmd, char *data,
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char *buf, size_t len)
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{
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#if defined(HAVE_SYSINFO)
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struct sysinfo sys_info;
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if (sysinfo(&sys_info)) {
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ast_log(LOG_ERROR, "FAILED to retrieve system information\n");
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return -1;
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}
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#endif
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if (ast_strlen_zero(data)) {
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ast_log(LOG_WARNING, "Syntax: ${SYSINFO(<parameter>)} - missing argument!)\n");
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return -1;
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} else if (!strcasecmp("loadavg", data)) {
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double curloadavg;
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getloadavg(&curloadavg, 1);
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snprintf(buf, len, "%f", curloadavg);
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} else if (!strcasecmp("numcalls", data)) {
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snprintf(buf, len, "%d", ast_active_calls());
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}
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#if defined(HAVE_SYSINFO)
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else if (!strcasecmp("uptime", data)) { /* in hours */
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snprintf(buf, len, "%ld", sys_info.uptime/3600);
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} else if (!strcasecmp("totalram", data)) { /* in KiB */
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snprintf(buf, len, "%ld",(sys_info.totalram / sys_info.mem_unit)/1024);
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} else if (!strcasecmp("freeram", data)) { /* in KiB */
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snprintf(buf, len, "%ld",(sys_info.freeram / sys_info.mem_unit)/1024);
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} else if (!strcasecmp("bufferram", data)) { /* in KiB */
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snprintf(buf, len, "%ld",(sys_info.bufferram / sys_info.mem_unit)/1024);
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} else if (!strcasecmp("totalswap", data)) { /* in KiB */
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snprintf(buf, len, "%ld",(sys_info.totalswap / sys_info.mem_unit)/1024);
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} else if (!strcasecmp("freeswap", data)) { /* in KiB */
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snprintf(buf, len, "%ld",(sys_info.freeswap / sys_info.mem_unit)/1024);
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} else if (!strcasecmp("numprocs", data)) {
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snprintf(buf, len, "%d", sys_info.procs);
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}
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#endif
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else {
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ast_log(LOG_ERROR, "Unknown sysinfo parameter type '%s'.\n", data);
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return -1;
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}
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return 0;
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}
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static struct ast_custom_function sysinfo_function = {
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.name = "SYSINFO",
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.synopsis = "Returns system information specified by parameter.",
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.syntax = "SYSINFO(<parameter>)",
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.read = sysinfo_helper,
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.desc =
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"Returns information from a given parameter\n"
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" Options:\n"
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" loadavg - system load average from past minute\n"
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" numcalls - number of active calls currently in progress\n"
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#if defined(HAVE_SYSINFO)
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" uptime - system uptime in hours\n"
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" totalram - total usable main memory size in KiB\n"
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" freeram - available memory size in KiB\n"
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" bufferram - memory used by buffers in KiB\n"
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" totalswap - total swap space size in KiB\n"
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" freeswap - free swap space still available in KiB\n"
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" numprocs - number of current processes\n",
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#endif /* HAVE_SYSINFO */
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};
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static int unload_module(void)
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{
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return ast_custom_function_unregister(&sysinfo_function);
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}
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static int load_module(void)
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{
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return ast_custom_function_register(&sysinfo_function);
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}
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AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "System information related functions");
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