Asterisk
/
asterisk
mirror of https://github.com/asterisk/asterisk
1
0
Fork 0
Code Issues Releases Wiki Activity
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
Branches Tags
${ item.name }
Create tag ${ searchTerm }
Create branch ${ searchTerm }
from 'b0ac62573a'
${ noResults }
asterisk/res/res_smdi.c

781 lines
22 KiB
Raw Blame History

/*
* Asterisk -- A telephony toolkit for Linux.
*
* Copyright (C) 2005-2006, Digium, Inc.
*
* Matthew A. Nicholson <mnicholson@digium.com>
*
* See http://www.asterisk.org for more information about
* the Asterisk project. Please do not directly contact
* any of the maintainers of this project for assistance;
* the project provides a web site, mailing lists and IRC
* channels for your use.
*
* This program is free software, distributed under the terms of
* the GNU General Public License Version 2. See the LICENSE file
* at the top of the source tree.
*/
/*!
* \file
* \brief SMDI support for Asterisk.
* \author Matthew A. Nicholson <mnicholson@digium.com>
*/
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <termios.h>
#include <sys/time.h>
#include <time.h>
#include <ctype.h>
#include "asterisk.h"
ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#include "asterisk/module.h"
#include "asterisk/lock.h"
#include "asterisk/utils.h"
#include "asterisk/smdi.h"
#include "asterisk/config.h"
#include "asterisk/astobj.h"
#include "asterisk/io.h"
#include "asterisk/logger.h"
#include "asterisk/utils.h"
#include "asterisk/options.h"
/* Message expiry time in milliseconds */
#define SMDI_MSG_EXPIRY_TIME 30000 /* 30 seconds */
static const char tdesc[] = "Asterisk Simplified Message Desk Interface (SMDI) Module";
static const char config_file[] = "smdi.conf";
static void ast_smdi_md_message_push(struct ast_smdi_interface *iface, struct ast_smdi_md_message *msg);
static void ast_smdi_mwi_message_push(struct ast_smdi_interface *iface, struct ast_smdi_mwi_message *msg);
static void *smdi_read(void *iface_p);
static int smdi_load(int reload);
/* Use count stuff */
AST_MUTEX_DEFINE_STATIC(localuser_lock);
static int localusecnt = 0;
/*! \brief SMDI interface container. */
struct ast_smdi_interface_container {
ASTOBJ_CONTAINER_COMPONENTS(struct ast_smdi_interface);
} smdi_ifaces;
/*!
* \internal
* \brief Push an SMDI message to the back of an interface's message queue.
* \param iface a pointer to the interface to use.
* \param md_msg a pointer to the message to use.
*/
static void ast_smdi_md_message_push(struct ast_smdi_interface *iface, struct ast_smdi_md_message *md_msg)
{
ASTOBJ_CONTAINER_LINK_END(&iface->md_q, md_msg);
}
/*!
* \internal
* \brief Push an SMDI message to the back of an interface's message queue.
* \param iface a pointer to the interface to use.
* \param mwi_msg a pointer to the message to use.
*/
static void ast_smdi_mwi_message_push(struct ast_smdi_interface *iface, struct ast_smdi_mwi_message *mwi_msg)
{
ASTOBJ_CONTAINER_LINK_END(&iface->mwi_q, mwi_msg);
}
/*!
* \brief Set the MWI indicator for a mailbox.
* \param iface the interface to use.
* \param mailbox the mailbox to use.
*/
int ast_smdi_mwi_set(struct ast_smdi_interface *iface, const char *mailbox)
{
FILE *file;
int i;
file = fopen(iface->name, "w");
if(!file) {
ast_log(LOG_ERROR, "Error opening SMDI interface %s (%s) for writing\n", iface->name, strerror(errno));
return 1;
}
ASTOBJ_WRLOCK(iface);
fprintf(file, "OP:MWI ");
for(i = 0; i < iface->msdstrip; i++)
fprintf(file, "0");
fprintf(file, "%s!\x04", mailbox);
fclose(file);
ASTOBJ_UNLOCK(iface);
ast_log(LOG_DEBUG, "Sent MWI set message for %s on %s\n", mailbox, iface->name);
return 0;
}
/*!
* \brief Unset the MWI indicator for a mailbox.
* \param iface the interface to use.
* \param mailbox the mailbox to use.
*/
int ast_smdi_mwi_unset(struct ast_smdi_interface *iface, const char *mailbox)
{
FILE *file;
int i;
file = fopen(iface->name, "w");
if(!file) {
ast_log(LOG_ERROR, "Error opening SMDI interface %s (%s) for writing\n", iface->name, strerror(errno));
return 1;
}
ASTOBJ_WRLOCK(iface);
fprintf(file, "RMV:MWI ");
for(i = 0; i < iface->msdstrip; i++)
fprintf(file, "0");
fprintf(file, "%s!\x04", mailbox);
fclose(file);
ASTOBJ_UNLOCK(iface);
ast_log(LOG_DEBUG, "Sent MWI unset message for %s on %s", mailbox, iface->name);
return 0;
}
/*!
* \brief Put an SMDI message back in the front of the queue.
* \param iface a pointer to the interface to use.
* \param msg a pointer to the message to use.
*
* This function puts a message back in the front of the specified queue. It
* should be used if a message was popped but is not going to be processed for
* some reason, and the message needs to be returned to the queue.
*/
void ast_smdi_md_message_putback(struct ast_smdi_interface *iface, struct ast_smdi_md_message *md_msg)
{
ASTOBJ_CONTAINER_LINK_START(&iface->md_q, md_msg);
}
/*!
* \brief Put an SMDI message back in the front of the queue.
* \param iface a pointer to the interface to use.
* \param msg a pointer to the message to use.
*
* This function puts a message back in the front of the specified queue. It
* should be used if a message was popped but is not going to be processed for
* some reason, and the message needs to be returned to the queue.
*/
void ast_smdi_mwi_message_putback(struct ast_smdi_interface *iface, struct ast_smdi_mwi_message *mwi_msg)
{
ASTOBJ_CONTAINER_LINK_START(&iface->mwi_q, mwi_msg);
}
/*!
* \brief Get the next SMDI message from the queue.
* \param iface a pointer to the interface to use.
*
* This function pulls the first unexpired message from the SMDI message queue
* on the specified interface. It will purge all expired SMDI messages before
* returning.
*
* \return the next SMDI message, or NULL if there were no pending messages.
*/
struct ast_smdi_md_message *ast_smdi_md_message_pop(struct ast_smdi_interface *iface)
{
struct ast_smdi_md_message *md_msg = ASTOBJ_CONTAINER_UNLINK_START(&iface->md_q);
struct timeval now;
long elapsed = 0;
/* purge old messages */
now = ast_tvnow();
while (md_msg) {
elapsed = ast_tvdiff_ms(now, md_msg->timestamp);
if (elapsed > iface->msg_expiry) {
/* found an expired message */
ASTOBJ_UNREF(md_msg, ast_smdi_md_message_destroy);
ast_log(LOG_NOTICE, "Purged expired message from %s SMDI MD message queue. Message was %ld milliseconds too old.",
iface->name, elapsed - iface->msg_expiry);
md_msg = ASTOBJ_CONTAINER_UNLINK_START(&iface->md_q);
}
else {
/* good message, return it */
break;
}
}
return md_msg;
}
/*!
* \brief Get the next SMDI message from the queue.
* \param iface a pointer to the interface to use.
* \param timeout the time to wait before returning in milliseconds.
*
* This function pulls a message from the SMDI message queue on the specified
* interface. If no message is available this function will wait the specified
* amount of time before returning.
*
* \return the next SMDI message, or NULL if there were no pending messages and
* the timeout has expired.
*/
extern struct ast_smdi_md_message *ast_smdi_md_message_wait(struct ast_smdi_interface *iface, int timeout)
{
struct timeval start;
long diff = 0;
struct ast_smdi_md_message *msg;
start = ast_tvnow();
while (diff < timeout) {
if ((msg = ast_smdi_md_message_pop(iface)))
return msg;
/* check timeout */
diff = ast_tvdiff_ms(ast_tvnow(), start);
}
return (ast_smdi_md_message_pop(iface));
}
/*!
* \brief Get the next SMDI message from the queue.
* \param iface a pointer to the interface to use.
*
* This function pulls the first unexpired message from the SMDI message queue
* on the specified interface. It will purge all expired SMDI messages before
* returning.
*
* \return the next SMDI message, or NULL if there were no pending messages.
*/
extern struct ast_smdi_mwi_message *ast_smdi_mwi_message_pop(struct ast_smdi_interface *iface)
{
struct ast_smdi_mwi_message *mwi_msg = ASTOBJ_CONTAINER_UNLINK_START(&iface->mwi_q);
struct timeval now;
long elapsed = 0;
/* purge old messages */
now = ast_tvnow();
while (mwi_msg) {
elapsed = ast_tvdiff_ms(now, mwi_msg->timestamp);
if (elapsed > iface->msg_expiry) {
/* found an expired message */
ASTOBJ_UNREF(mwi_msg, ast_smdi_mwi_message_destroy);
ast_log(LOG_NOTICE, "Purged expired message from %s SMDI MWI message queue. Message was %ld milliseconds too old.",
iface->name, elapsed - iface->msg_expiry);
mwi_msg = ASTOBJ_CONTAINER_UNLINK_START(&iface->mwi_q);
}
else {
/* good message, return it */
break;
}
}
return mwi_msg;
}
/*!
* \brief Get the next SMDI message from the queue.
* \param iface a pointer to the interface to use.
* \param timeout the time to wait before returning in milliseconds.
*
* This function pulls a message from the SMDI message queue on the specified
* interface. If no message is available this function will wait the specified
* amount of time before returning.
*
* \return the next SMDI message, or NULL if there were no pending messages and
* the timeout has expired.
*/
extern struct ast_smdi_mwi_message *ast_smdi_mwi_message_wait(struct ast_smdi_interface *iface, int timeout)
{
struct timeval start;
long diff = 0;
struct ast_smdi_mwi_message *msg;
start = ast_tvnow();
while (diff < timeout) {
if ((msg = ast_smdi_mwi_message_pop(iface)))
return msg;
/* check timeout */
diff = ast_tvdiff_ms(ast_tvnow(), start);
}
return (ast_smdi_mwi_message_pop(iface));
}
/*!
* \brief Find an SMDI interface with the specified name.
* \param iface_name the name/port of the interface to search for.
*
* \return a pointer to the interface located or NULL if none was found. This
* actually returns an ASTOBJ reference and should be released using
* #ASTOBJ_UNREF(iface, ast_smdi_interface_destroy).
*/
extern struct ast_smdi_interface *ast_smdi_interface_find(const char *iface_name)
{
return (ASTOBJ_CONTAINER_FIND(&smdi_ifaces, iface_name));
}
/*! \brief Read an SMDI message.
*
* \param iface the SMDI interface to read from.
*
* This function loops and reads from and SMDI interface. It must be stopped
* using pthread_cancel().
*/
static void *smdi_read(void *iface_p)
{
struct ast_smdi_interface *iface = iface_p;
struct ast_smdi_md_message *md_msg;
struct ast_smdi_mwi_message *mwi_msg;
char c = '\0';
char *cp = NULL;
int i;
int start = 0;
/* read an smdi message */
while ((c = fgetc(iface->file))) {
/* check if this is the start of a message */
if (!start) {
if (c == 'M')
start = 1;
}
else { /* Determine if this is a MD or MWI message */
if(c == 'D') { /* MD message */
start = 0;
if (!(md_msg = ast_calloc(1, sizeof(*md_msg)))) {
ASTOBJ_UNREF(iface,ast_smdi_interface_destroy);
return NULL;
}
ASTOBJ_INIT(md_msg);
/* read the message desk number */
for(i = 0; i < SMDI_MESG_DESK_NUM_LEN; i++)
md_msg->mesg_desk_num[i] = fgetc(iface->file);
md_msg->mesg_desk_num[SMDI_MESG_DESK_NUM_LEN] = '\0';
/* read the message desk terminal number */
for(i = 0; i < SMDI_MESG_DESK_TERM_LEN; i++)
md_msg->mesg_desk_term[i] = fgetc(iface->file);
md_msg->mesg_desk_term[SMDI_MESG_DESK_TERM_LEN] = '\0';
/* read the message type */
md_msg->type = fgetc(iface->file);
/* read the forwarding station number (may be blank) */
cp = &md_msg->fwd_st[0];
for (i = 0; i < SMDI_MAX_STATION_NUM_LEN + 1; i++) {
if((c = fgetc(iface->file)) == ' ') {
*cp = '\0';
break;
}
/* store c in md_msg->fwd_st */
if( i >= iface->msdstrip)
*cp++ = c;
}
/* make sure the value is null terminated, even if this truncates it */
md_msg->fwd_st[SMDI_MAX_STATION_NUM_LEN] = '\0';
cp = NULL;
/* read the calling station number (may be blank) */
cp = &md_msg->calling_st[0];
for (i = 0; i < SMDI_MAX_STATION_NUM_LEN + 1; i++) {
if (!isdigit((c = fgetc(iface->file)))) {
*cp = '\0';
break;
}
/* store c in md_msg->calling_st */
if (i >= iface->msdstrip)
*cp++ = c;
}
/* make sure the value is null terminated, even if this truncates it */
md_msg->calling_st[SMDI_MAX_STATION_NUM_LEN] = '\0';
cp = NULL;
/* add the message to the message queue */
md_msg->timestamp = ast_tvnow();
ast_smdi_md_message_push(iface, md_msg);
ast_log(LOG_DEBUG, "Recieved SMDI MD message on %s\n", iface->name);
ASTOBJ_UNREF(md_msg, ast_smdi_md_message_destroy);
} else if(c == 'W') { /* MWI message */
start = 0;
if (!(mwi_msg = ast_calloc(1, sizeof(*mwi_msg)))) {
ASTOBJ_UNREF(iface,ast_smdi_interface_destroy);
return NULL;
}
ASTOBJ_INIT(mwi_msg);
/* discard the 'I' (from 'MWI') */
fgetc(iface->file);
/* read the forwarding station number (may be blank) */
cp = &mwi_msg->fwd_st[0];
for (i = 0; i < SMDI_MAX_STATION_NUM_LEN + 1; i++) {
if ((c = fgetc(iface->file)) == ' ') {
*cp = '\0';
break;
}
/* store c in md_msg->fwd_st */
if (i >= iface->msdstrip)
*cp++ = c;
}
/* make sure the station number is null terminated, even if this will truncate it */
mwi_msg->fwd_st[SMDI_MAX_STATION_NUM_LEN] = '\0';
cp = NULL;
/* read the mwi failure cause */
for (i = 0; i < SMDI_MWI_FAIL_CAUSE_LEN; i++)
mwi_msg->cause[i] = fgetc(iface->file);
mwi_msg->cause[SMDI_MWI_FAIL_CAUSE_LEN] = '\0';
/* add the message to the message queue */
mwi_msg->timestamp = ast_tvnow();
ast_smdi_mwi_message_push(iface, mwi_msg);
ast_log(LOG_DEBUG, "Recieved SMDI MWI message on %s\n", iface->name);
ASTOBJ_UNREF(mwi_msg, ast_smdi_mwi_message_destroy);
} else {
ast_log(LOG_ERROR, "Unknown SMDI message type recieved on %s (M%c).\n", iface->name, c);
start = 0;
}
}
}
ast_log(LOG_ERROR, "Error reading from SMDI interface %s, stopping listener thread\n", iface->name);
ASTOBJ_UNREF(iface,ast_smdi_interface_destroy);
return NULL;
}
/*! \brief ast_smdi_md_message destructor. */
void ast_smdi_md_message_destroy(struct ast_smdi_md_message *msg)
{
free(msg);
}
/*! \brief ast_smdi_mwi_message destructor. */
void ast_smdi_mwi_message_destroy(struct ast_smdi_mwi_message *msg)
{
free(msg);
}
/*! \brief ast_smdi_interface destructor. */
void ast_smdi_interface_destroy(struct ast_smdi_interface *iface)
{
if (iface->thread != AST_PTHREADT_NULL && iface->thread != AST_PTHREADT_STOP) {
pthread_cancel(iface->thread);
pthread_join(iface->thread, NULL);
}
iface->thread = AST_PTHREADT_STOP;
if(iface->file)
fclose(iface->file);
ASTOBJ_CONTAINER_DESTROYALL(&iface->md_q, ast_smdi_md_message_destroy);
ASTOBJ_CONTAINER_DESTROYALL(&iface->mwi_q, ast_smdi_mwi_message_destroy);
ASTOBJ_CONTAINER_DESTROY(&iface->md_q);
ASTOBJ_CONTAINER_DESTROY(&iface->mwi_q);
free(iface);
ast_mutex_lock(&localuser_lock);
localusecnt--;
ast_mutex_unlock(&localuser_lock);
ast_update_use_count();
}
/*!
* \internal
* \brief Load and reload SMDI configuration.
* \param reload this should be 1 if we are reloading and 0 if not.
*
* This function loads/reloads the SMDI configuration and starts and stops
* interfaces accordingly.
*
* \return zero on success, -1 on failure, and 1 if no smdi interfaces were started.
*/
static int smdi_load(int reload)
{
struct ast_config *conf;
struct ast_variable *v;
struct ast_smdi_interface *iface = NULL;
int res = 0;
/* Config options */
speed_t baud_rate = B9600; /* 9600 baud rate */
tcflag_t paritybit = PARENB; /* even parity checking */
tcflag_t charsize = CS7; /* seven bit characters */
int stopbits = 0; /* One stop bit */
int msdstrip = 0; /* strip zero digits */
long msg_expiry = SMDI_MSG_EXPIRY_TIME;
conf = ast_config_load(config_file);
if (!conf) {
if (reload)
ast_log(LOG_NOTICE, "Unable to reload config %s: SMDI untouched\n", config_file);
else
ast_log(LOG_NOTICE, "Unable to load config %s: SMDI disabled\n", config_file);
return 1;
}
/* Mark all interfaces that we are listening on. We will unmark them
* as we find them in the config file, this way we know any interfaces
* still marked after we have finished parsing the config file should
* be stopped.
*/
if (reload)
ASTOBJ_CONTAINER_MARKALL(&smdi_ifaces);
for (v = ast_variable_browse(conf, "interfaces"); v; v = v->next) {
if (!strcasecmp(v->name, "baudrate")) {
if (!strcasecmp(v->value, "9600"))
baud_rate = B9600;
else if(!strcasecmp(v->value, "4800"))
baud_rate = B4800;
else if(!strcasecmp(v->value, "2400"))
baud_rate = B2400;
else if(!strcasecmp(v->value, "1200"))
baud_rate = B1200;
else {
ast_log(LOG_NOTICE, "Invalid baud rate '%s' specified in %s (line %d), using default\n", v->value, config_file, v->lineno);
baud_rate = B9600;
}
} else if (!strcasecmp(v->name, "msdstrip")) {
if (!sscanf(v->value, "%d", &msdstrip)) {
ast_log(LOG_NOTICE, "Invalid msdstrip value in %s (line %d), using default\n", config_file, v->lineno);
msdstrip = 0;
} else if (0 > msdstrip || msdstrip > 9) {
ast_log(LOG_NOTICE, "Invalid msdstrip value in %s (line %d), using default\n", config_file, v->lineno);
msdstrip = 0;
}
} else if (!strcasecmp(v->name, "msgexpirytime")) {
if (!sscanf(v->value, "%ld", &msg_expiry)) {
ast_log(LOG_NOTICE, "Invalid msgexpirytime value in %s (line %d), using default\n", config_file, v->lineno);
msg_expiry = SMDI_MSG_EXPIRY_TIME;
}
} else if (!strcasecmp(v->name, "paritybit")) {
if (!strcasecmp(v->value, "even"))
paritybit = PARENB;
else if (!strcasecmp(v->value, "odd"))
paritybit = PARENB | PARODD;
else if (!strcasecmp(v->value, "none"))
paritybit = ~PARENB;
else {
ast_log(LOG_NOTICE, "Invalid parity bit setting in %s (line %d), using default\n", config_file, v->lineno);
paritybit = PARENB;
}
} else if (!strcasecmp(v->name, "charsize")) {
if (!strcasecmp(v->value, "7"))
charsize = CS7;
else if (!strcasecmp(v->value, "8"))
charsize = CS8;
else {
ast_log(LOG_NOTICE, "Invalid character size setting in %s (line %d), using default\n", config_file, v->lineno);
charsize = CS7;
}
} else if (!strcasecmp(v->name, "twostopbits")) {
stopbits = ast_true(v->name);
} else if (!strcasecmp(v->name, "smdiport")) {
if (reload) {
/* we are reloading, check if we are already
* monitoring this interface, if we are we do
* not want to start it again. This also has
* the side effect of not updating different
* setting for the serial port, but it should
* be trivial to rewrite this section so that
* options on the port are changed without
* restarting the interface. Or the interface
* could be restarted with out emptying the
* queue. */
if ((iface = ASTOBJ_CONTAINER_FIND(&smdi_ifaces, v->value))) {
ast_log(LOG_NOTICE, "SMDI interface %s already running, not restarting\n", iface->name);
ASTOBJ_UNMARK(iface);
ASTOBJ_UNREF(iface, ast_smdi_interface_destroy);
continue;
}
}
iface = ast_calloc(1, sizeof(*iface));
ASTOBJ_INIT(iface);
ASTOBJ_CONTAINER_INIT(&iface->md_q);
ASTOBJ_CONTAINER_INIT(&iface->mwi_q);
ast_copy_string(iface->name, v->value, sizeof(iface->name));
if (!(iface->file = fopen(iface->name, "r"))) {
ast_log(LOG_ERROR, "Error opening SMDI interface %s (%s)\n", iface->name, strerror(errno));
ASTOBJ_UNREF(iface, ast_smdi_interface_destroy);
continue;
}
iface->fd = fileno(iface->file);
/* Set the proper attributes for our serial port. */
/* get the current attributes from the port */
if (tcgetattr(iface->fd, &iface->mode)) {
ast_log(LOG_ERROR, "Error getting atributes of %s (%s)\n", iface->name, strerror(errno));
ASTOBJ_UNREF(iface, ast_smdi_interface_destroy);
continue;
}
/* set the desired speed */
if (cfsetispeed(&iface->mode, baud_rate) || cfsetospeed(&iface->mode, baud_rate)) {
ast_log(LOG_ERROR, "Error setting baud rate on %s (%s)\n", iface->name, strerror(errno));
ASTOBJ_UNREF(iface, ast_smdi_interface_destroy);
continue;
}
/* set the stop bits */
if (stopbits)
iface->mode.c_cflag = iface->mode.c_cflag | CSTOPB; /* set two stop bits */
else
iface->mode.c_cflag = iface->mode.c_cflag & ~CSTOPB; /* set one stop bit */
/* set the parity */
iface->mode.c_cflag = (iface->mode.c_cflag & ~PARENB & ~PARODD) | paritybit;
/* set the character size */
iface->mode.c_cflag = (iface->mode.c_cflag & ~CSIZE) | charsize;
/* commit the desired attributes */
if (tcsetattr(iface->fd, TCSAFLUSH, &iface->mode)) {
ast_log(LOG_ERROR, "Error setting attributes on %s (%s)\n", iface->name, strerror(errno));
ASTOBJ_UNREF(iface, ast_smdi_interface_destroy);
continue;
}
/* set the msdstrip */
iface->msdstrip = msdstrip;
/* set the message expiry time */
iface->msg_expiry = msg_expiry;
/* start the listner thread */
if (option_verbose > 2)
ast_verbose(VERBOSE_PREFIX_3 "Starting SMDI monitor thread for %s\n", iface->name);
if (ast_pthread_create(&iface->thread, NULL, smdi_read, iface)) {
ast_log(LOG_ERROR, "Error starting SMDI monitor thread for %s\n", iface->name);
ASTOBJ_UNREF(iface, ast_smdi_interface_destroy);
continue;
}
ASTOBJ_CONTAINER_LINK(&smdi_ifaces, iface);
ASTOBJ_UNREF(iface, ast_smdi_interface_destroy);
ast_mutex_lock(&localuser_lock);
localusecnt++;
ast_mutex_unlock(&localuser_lock);
ast_update_use_count();
} else {
ast_log(LOG_NOTICE, "Ignoring unknown option %s in %s\n", v->name, config_file);
}
v = v->next;
}
ast_config_destroy(conf);
/* Prune any interfaces we should no longer monitor. */
if (reload)
ASTOBJ_CONTAINER_PRUNE_MARKED(&smdi_ifaces, ast_smdi_interface_destroy);
ASTOBJ_CONTAINER_RDLOCK(&smdi_ifaces);
/* TODO: this is bad, we need an ASTOBJ method for this! */
if (!smdi_ifaces.head)
res = 1;
ASTOBJ_CONTAINER_UNLOCK(&smdi_ifaces);
return res;
}
char *description(void)
{
return (char *) tdesc;
}
int load_module(void)
{
int res;
/* initialize our containers */
memset(&smdi_ifaces, 0, sizeof(smdi_ifaces));
ASTOBJ_CONTAINER_INIT(&smdi_ifaces);
/* load the config and start the listener threads*/
res = smdi_load(0);
if (res < 0) {
return res;
} else if (res == 1) {
ast_log(LOG_WARNING, "No SMDI interfaces are available to listen on, not starting SDMI listener.\n");
return 0;
} else
return 0;
}
int unload_module(void)
{
/* this destructor stops any running smdi_read threads */
ASTOBJ_CONTAINER_DESTROYALL(&smdi_ifaces, ast_smdi_interface_destroy);
ASTOBJ_CONTAINER_DESTROY(&smdi_ifaces);
return 0;
}
int reload(void)
{
int res;
res = smdi_load(1);
if (res < 0) {
return res;
} else if (res == 1) {
ast_log(LOG_WARNING, "No SMDI interfaces were specified to listen on, not starting SDMI listener.\n");
return 0;
} else
return 0;
}
int usecount(void)
{
int res;
STANDARD_USECOUNT(res);
return res;
}
char *key()
{
return ASTERISK_GPL_KEY;
}
Reference in new issue View Git Blame Copy Permalink