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chan-capi/divaverbose/divaverbose.c

208 lines
4.7 KiB

/*
*
Copyright (c) Dialogic(R), 2011
*
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
*
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY OF ANY KIND WHATSOEVER INCLUDING ANY
implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
*
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
/*! \file
* \brief Implements interface to diva trace system
*/
#include <stdio.h>
#include "chan_capi20.h"
#include "chan_capi.h"
#ifdef CC_AST_HAS_VERSION_1_4
#include <asterisk.h>
#endif
#include <asterisk/logger.h>
#include <asterisk/module.h>
#include <asterisk/cli.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "divaverbose.h"
static int verbose_registered;
AST_MUTEX_DEFINE_STATIC(dbgIfcLock);
static volatile int divaDbgIfc = -1;
#ifdef CC_AST_HAS_VERSION_1_6
static
#endif
char capi_do_verbose_usage[] =
"Usage: " CC_MESSAGE_NAME " verbose\n"
" Connect to debug driver.\n";
#ifdef CC_AST_HAS_VERSION_1_6
static
#endif
char capi_no_verbose_usage[] =
"Usage: " CC_MESSAGE_NAME " no verbose\n"
" Disconnect from debug driver.\n";
static void open_diva_mnt(void)
{
cc_mutex_lock(&dbgIfcLock);
if (divaDbgIfc < 0) {
divaDbgIfc = open("/dev/DivasDBGIFC", O_WRONLY);
}
cc_mutex_unlock(&dbgIfcLock);
}
#if (!defined(CC_AST_HAS_VERSION_1_4) && !defined(CC_AST_HAS_VERSION_1_6) && !defined(CC_AST_HAS_VERSION_1_8))
static void diva_verbose_write (const char *info, int opos, int replacelast, int complete)
#else
static void diva_verbose_write (const char *info)
#endif
{
if (divaDbgIfc < 0) {
open_diva_mnt();
}
if (divaDbgIfc >= 0) {
write (divaDbgIfc, info, strlen(info));
}
}
static int diva_verbose_start(void)
{
if (verbose_registered == 0) {
verbose_registered = (ast_register_verbose(diva_verbose_write) == 0);
}
return ((verbose_registered != 0) ? 0 : -1);
}
static int diva_verbose_stop(void)
{
if (verbose_registered != 0) {
verbose_registered = !(ast_unregister_verbose(diva_verbose_write) == 0);
}
if ((verbose_registered == 0) && (divaDbgIfc >= 0)) {
close(divaDbgIfc);
divaDbgIfc = -1;
}
return ((verbose_registered == 0) ? 0 : -1);
}
/*
* enable debugging
*/
#ifdef CC_AST_HAS_VERSION_1_6
char *pbxcli_capi_do_verbose(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
#else
int pbxcli_capi_do_verbose(int fd, int argc, char *argv[])
#endif
{
int ret;
#ifdef CC_AST_HAS_VERSION_1_6
int fd = a->fd;
if (cmd == CLI_INIT) {
e->command = CC_MESSAGE_NAME " verbose";
e->usage = capi_do_verbose_usage;
return NULL;
} else if (cmd == CLI_GENERATE)
return NULL;
if (a->argc != e->args)
return CLI_SHOWUSAGE;
#else
if (argc != 2)
return RESULT_SHOWUSAGE;
#endif
ret = diva_verbose_start();
if (ret == 0) {
ast_cli(fd, CC_MESSAGE_BIGNAME " Message Verboser Enabled\n");
} else {
ast_cli(fd, CC_MESSAGE_BIGNAME " Failed to enable Message Verboser\n");
}
#ifdef CC_AST_HAS_VERSION_1_6
return ((ret == 0) ? CLI_SUCCESS : CLI_FAILURE);
#else
return ((ret == 0) ? RESULT_SUCCESS : RESULT_FAILURE);
#endif
}
/*
* disable debugging
*/
#ifdef CC_AST_HAS_VERSION_1_6
char *pbxcli_capi_no_verbose(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
#else
int pbxcli_capi_no_verbose(int fd, int argc, char *argv[])
#endif
{
int ret;
#ifdef CC_AST_HAS_VERSION_1_6
int fd = a->fd;
if (cmd == CLI_INIT) {
e->command = CC_MESSAGE_NAME " no verbose";
e->usage = capi_no_verbose_usage;
return NULL;
} else if (cmd == CLI_GENERATE)
return NULL;
if (a->argc != e->args)
return CLI_SHOWUSAGE;
#else
if (argc != 3)
return RESULT_SHOWUSAGE;
#endif
ret = diva_verbose_stop();
if (ret == 0) {
ast_cli(fd, CC_MESSAGE_BIGNAME " Message Verboser Disabled\n");
} else {
ast_cli(fd, CC_MESSAGE_BIGNAME " Failed to disable Message Verboser\n");
}
#ifdef CC_AST_HAS_VERSION_1_6
return ((ret == 0) ? CLI_SUCCESS : CLI_FAILURE);
#else
return ((ret == 0) ? RESULT_SUCCESS : RESULT_FAILURE);
#endif
}
void diva_verbose_load(void)
{
divaDbgIfc = -1;
open_diva_mnt();
if (divaDbgIfc >= 0) {
diva_verbose_start();
}
}
void diva_verbose_unload(void)
{
if (verbose_registered != 0) {
verbose_registered = !(ast_unregister_verbose(diva_verbose_write) == 0);
}
if (verbose_registered != 0)
cc_mutex_lock(&dbgIfcLock);
if (divaDbgIfc >= 0) {
close(divaDbgIfc);
divaDbgIfc = -1;
}
if (verbose_registered != 0)
cc_mutex_unlock(&dbgIfcLock);
}