func_sysinfo.c File Reference

#include "asterisk.h"
#include <sys/sysinfo.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)
struct ast_module *	AST_MODULE_SELF_SYM (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 = ASTERISK_GPL_KEY , .buildopt_sum = AST_BUILDOPT_SUM, .load = load_module, .unload = unload_module, .load_pri = AST_MODPRI_DEFAULT, .support_level = AST_MODULE_SUPPORT_CORE, }
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

__reg_module()

static void __reg_module ( void  )

static

Definition at line 156 of file func_sysinfo.c.

__unreg_module()

static void __unreg_module ( void  )

static

Definition at line 156 of file func_sysinfo.c.

AST_MODULE_SELF_SYM()

struct ast_module * AST_MODULE_SELF_SYM

(

void

)

Definition at line 156 of file func_sysinfo.c.

load_module()

static int load_module ( void  )

static

Definition at line 151 of file func_sysinfo.c.

{
    return ast_custom_function_register(&sysinfo_function);
}

References ast_custom_function_register, and sysinfo_function.

sysinfo_helper()

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

static

Definition at line 95 of file func_sysinfo.c.

{
#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, "%lu",(sys_info.totalram * sys_info.mem_unit)/1024);
    } else if (!strcasecmp("freeram", data)) {          /* in KiB */
        snprintf(buf, len, "%lu",(sys_info.freeram * sys_info.mem_unit)/1024);
    } else if (!strcasecmp("bufferram", data)) {        /* in KiB */
        snprintf(buf, len, "%lu",(sys_info.bufferram * sys_info.mem_unit)/1024);
    } else if (!strcasecmp("totalswap", data)) {        /* in KiB */
        snprintf(buf, len, "%lu",(sys_info.totalswap * sys_info.mem_unit)/1024);
    } else if (!strcasecmp("freeswap", data)) {         /* in KiB */
        snprintf(buf, len, "%lu",(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;
}

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

unload_module()

static int unload_module ( void  )

static

Definition at line 146 of file func_sysinfo.c.

{
    return ast_custom_function_unregister(&sysinfo_function);
}

References ast_custom_function_unregister(), and sysinfo_function.

Variable Documentation

__mod_info

struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "System information related functions" , .key = ASTERISK_GPL_KEY , .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 156 of file func_sysinfo.c.

ast_module_info

const struct ast_module_info* ast_module_info = &__mod_info

static

Definition at line 156 of file func_sysinfo.c.

sysinfo_function

struct ast_custom_function sysinfo_function

static

Initial value:

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

Definition at line 140 of file func_sysinfo.c.

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

Referenced by load_module(), and unload_module().