func_sysinfo.c File Reference

#include "asterisk.h"
#include "asterisk/module.h"
#include "asterisk/pbx.h"

Include dependency graph for func_sysinfo.c:

Go to the source code of this file.

Functions

static void __reg_module (void)
static void __unreg_module (void)
static int load_module (void)
static int sysinfo_helper (struct ast_channel *chan, const char *cmd, char *data, char *buf, size_t len)
static int unload_module (void)

Variables

static struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "System information related functions" , .key = "This paragraph is copyright (c) 2006 by Digium, Inc. \In order for your module to load, it must return this \key via a function called \"key\". Any code which \includes this paragraph must be licensed under the GNU \General Public License version 2 or later (at your \option). In addition to Digium's general reservations \of rights, Digium expressly reserves the right to \allow other parties to license this paragraph under \different terms. Any use of Digium, Inc. trademarks or \logos (including \"Asterisk\" or \"Digium\") without \express written permission of Digium, Inc. is prohibited.\n" , .buildopt_sum = AST_BUILDOPT_SUM, .load = load_module, .unload = unload_module, .load_pri = AST_MODPRI_DEFAULT, .support_level = AST_MODULE_SUPPORT_CORE, }
static struct ast_module_infoast_module_info = &__mod_info
static struct ast_custom_function sysinfo_function


Detailed Description

SYSINFO function to return various system data.

Note:
Inspiration and Guidance from Russell
Author:
Jeff Peeler

Definition in file func_sysinfo.c.


Function Documentation

static void __reg_module ( void   )  [static]

Definition at line 155 of file func_sysinfo.c.

static void __unreg_module ( void   )  [static]

Definition at line 155 of file func_sysinfo.c.

static int load_module ( void   )  [static]

Definition at line 150 of file func_sysinfo.c.

References ast_custom_function_register.

00151 {
00152    return ast_custom_function_register(&sysinfo_function);
00153 }

static int sysinfo_helper ( struct ast_channel chan,
const char *  cmd,
char *  data,
char *  buf,
size_t  len 
) [static]

Definition at line 94 of file func_sysinfo.c.

References ast_active_calls(), ast_log, ast_strlen_zero, getloadavg(), LOG_ERROR, and LOG_WARNING.

00096 {
00097 #if defined(HAVE_SYSINFO)
00098    struct sysinfo sys_info;
00099    if (sysinfo(&sys_info)) {
00100       ast_log(LOG_ERROR, "FAILED to retrieve system information\n");
00101       return -1;
00102    }
00103 #endif
00104    if (ast_strlen_zero(data)) {
00105       ast_log(LOG_WARNING, "Syntax: ${SYSINFO(<parameter>)} - missing argument!)\n");
00106       return -1;
00107    } else if (!strcasecmp("loadavg", data)) {
00108       double curloadavg;
00109       getloadavg(&curloadavg, 1);
00110       snprintf(buf, len, "%f", curloadavg);
00111    } else if (!strcasecmp("numcalls", data)) {
00112       snprintf(buf, len, "%d", ast_active_calls());
00113    }
00114 #if defined(HAVE_SYSINFO)
00115    else if (!strcasecmp("uptime", data)) {             /* in hours */
00116       snprintf(buf, len, "%ld", sys_info.uptime/3600);
00117    } else if (!strcasecmp("totalram", data)) {         /* in KiB */
00118       snprintf(buf, len, "%lu",(sys_info.totalram * sys_info.mem_unit)/1024);
00119    } else if (!strcasecmp("freeram", data)) {          /* in KiB */
00120       snprintf(buf, len, "%lu",(sys_info.freeram * sys_info.mem_unit)/1024);
00121    } else if (!strcasecmp("bufferram", data)) {        /* in KiB */
00122       snprintf(buf, len, "%lu",(sys_info.bufferram * sys_info.mem_unit)/1024);
00123    } else if (!strcasecmp("totalswap", data)) {        /* in KiB */
00124       snprintf(buf, len, "%lu",(sys_info.totalswap * sys_info.mem_unit)/1024);
00125    } else if (!strcasecmp("freeswap", data)) {         /* in KiB */
00126       snprintf(buf, len, "%lu",(sys_info.freeswap * sys_info.mem_unit)/1024);
00127    } else if (!strcasecmp("numprocs", data)) {
00128       snprintf(buf, len, "%d", sys_info.procs);
00129    }
00130 #endif
00131    else {
00132       ast_log(LOG_ERROR, "Unknown sysinfo parameter type '%s'.\n", data);
00133       return -1;
00134    }
00135       
00136    return 0;
00137 }

static int unload_module ( void   )  [static]

Definition at line 145 of file func_sysinfo.c.

References ast_custom_function_unregister().

00146 {
00147    return ast_custom_function_unregister(&sysinfo_function);
00148 }


Variable Documentation

struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "System information related functions" , .key = "This paragraph is copyright (c) 2006 by Digium, Inc. \In order for your module to load, it must return this \key via a function called \"key\". Any code which \includes this paragraph must be licensed under the GNU \General Public License version 2 or later (at your \option). In addition to Digium's general reservations \of rights, Digium expressly reserves the right to \allow other parties to license this paragraph under \different terms. Any use of Digium, Inc. trademarks or \logos (including \"Asterisk\" or \"Digium\") without \express written permission of Digium, Inc. is prohibited.\n" , .buildopt_sum = AST_BUILDOPT_SUM, .load = load_module, .unload = unload_module, .load_pri = AST_MODPRI_DEFAULT, .support_level = AST_MODULE_SUPPORT_CORE, } [static]

Definition at line 155 of file func_sysinfo.c.

Definition at line 155 of file func_sysinfo.c.

Initial value:

 {
   .name = "SYSINFO",
   .read = sysinfo_helper,
   .read_max = 22,
}

Definition at line 139 of file func_sysinfo.c.


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