Wed Oct 28 11:46:10 2009

Asterisk developer's documentation


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_DEFAULT , .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, }
static const struct
ast_module_info
ast_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 115 of file func_sysinfo.c.

static void __unreg_module ( void   )  [static]

Definition at line 115 of file func_sysinfo.c.

static int load_module ( void   )  [static]

Definition at line 110 of file func_sysinfo.c.

References ast_custom_function_register.

00111 {
00112    return ast_custom_function_register(&sysinfo_function);
00113 }

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

Definition at line 39 of file func_sysinfo.c.

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

00041 {
00042 #if defined(HAVE_SYSINFO)
00043    struct sysinfo sys_info;
00044    if (sysinfo(&sys_info)) {
00045       ast_log(LOG_ERROR, "FAILED to retrieve system information\n");
00046       return -1;
00047    }
00048 #endif
00049    if (ast_strlen_zero(data)) {
00050       ast_log(LOG_WARNING, "Syntax: ${SYSINFO(<parameter>)} - missing argument!)\n");
00051       return -1;
00052    } else if (!strcasecmp("loadavg", data)) {
00053       double curloadavg;
00054       getloadavg(&curloadavg, 1);
00055       snprintf(buf, len, "%f", curloadavg);
00056    } else if (!strcasecmp("numcalls", data)) {
00057       snprintf(buf, len, "%d", ast_active_calls());
00058    }
00059 #if defined(HAVE_SYSINFO)
00060    else if (!strcasecmp("uptime", data)) {             /* in hours */
00061       snprintf(buf, len, "%ld", sys_info.uptime/3600);
00062    } else if (!strcasecmp("totalram", data)) {         /* in KiB */
00063       snprintf(buf, len, "%ld",(sys_info.totalram * sys_info.mem_unit)/1024);
00064    } else if (!strcasecmp("freeram", data)) {          /* in KiB */
00065       snprintf(buf, len, "%ld",(sys_info.freeram * sys_info.mem_unit)/1024);
00066    } else if (!strcasecmp("bufferram", data)) {        /* in KiB */
00067       snprintf(buf, len, "%ld",(sys_info.bufferram * sys_info.mem_unit)/1024);
00068    } else if (!strcasecmp("totalswap", data)) {        /* in KiB */
00069       snprintf(buf, len, "%ld",(sys_info.totalswap * sys_info.mem_unit)/1024);
00070    } else if (!strcasecmp("freeswap", data)) {         /* in KiB */
00071       snprintf(buf, len, "%ld",(sys_info.freeswap * sys_info.mem_unit)/1024);
00072    } else if (!strcasecmp("numprocs", data)) {
00073       snprintf(buf, len, "%d", sys_info.procs);
00074    }
00075 #endif
00076    else {
00077       ast_log(LOG_ERROR, "Unknown sysinfo parameter type '%s'.\n", data);
00078       return -1;
00079    }
00080       
00081    return 0;
00082 }

static int unload_module ( void   )  [static]

Definition at line 105 of file func_sysinfo.c.

References ast_custom_function_unregister().

00106 {
00107    return ast_custom_function_unregister(&sysinfo_function);
00108 }


Variable Documentation

struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_DEFAULT , .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, } [static]

Definition at line 115 of file func_sysinfo.c.

const struct ast_module_info* ast_module_info = &__mod_info [static]

Definition at line 115 of file func_sysinfo.c.

Definition at line 84 of file func_sysinfo.c.


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