1 files changed, 0 insertions, 369 deletions
diff --git a/1.4.23-rc4/main/devicestate.c b/1.4.23-rc4/main/devicestate.c
deleted file mode 100644
index f84c87df7..000000000
--- a/1.4.23-rc4/main/devicestate.c
+++ /dev/null
@@ -1,369 +0,0 @@
-/*
- * Asterisk -- An open source telephony toolkit.
- *
- * Copyright (C) 1999 - 2006, Digium, Inc.
- *
- * Mark Spencer <markster@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 Device state management
- *
- * \author Mark Spencer <markster@digium.com> 
- */
-
-#include "asterisk.h"
-
-ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
-
-#include <sys/types.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-
-#include "asterisk/channel.h"
-#include "asterisk/utils.h"
-#include "asterisk/lock.h"
-#include "asterisk/linkedlists.h"
-#include "asterisk/logger.h"
-#include "asterisk/devicestate.h"
-#include "asterisk/pbx.h"
-#include "asterisk/app.h"
-#include "asterisk/options.h"
-
-/*! \brief Device state strings for printing */
-static const char *devstatestring[] = {
-	/* 0 AST_DEVICE_UNKNOWN */	"Unknown",	/*!< Valid, but unknown state */
-	/* 1 AST_DEVICE_NOT_INUSE */	"Not in use",	/*!< Not used */
-	/* 2 AST_DEVICE IN USE */	"In use",	/*!< In use */
-	/* 3 AST_DEVICE_BUSY */		"Busy",		/*!< Busy */
-	/* 4 AST_DEVICE_INVALID */	"Invalid",	/*!< Invalid - not known to Asterisk */
-	/* 5 AST_DEVICE_UNAVAILABLE */	"Unavailable",	/*!< Unavailable (not registred) */
-	/* 6 AST_DEVICE_RINGING */	"Ringing",	/*!< Ring, ring, ring */
-	/* 7 AST_DEVICE_RINGINUSE */	"Ring+Inuse",	/*!< Ring and in use */
-	/* 8 AST_DEVICE_ONHOLD */	"On Hold"	/*!< On Hold */
-};
-
-/*! \brief  A device state provider (not a channel) */
-struct devstate_prov {
-	char label[40];
-	ast_devstate_prov_cb_type callback;
-	AST_LIST_ENTRY(devstate_prov) list;
-};
-
-/*! \brief A list of providers */
-static AST_LIST_HEAD_STATIC(devstate_provs, devstate_prov);
-
-/*! \brief  A device state watcher (callback) */
-struct devstate_cb {
-	void *data;
-	ast_devstate_cb_type callback;
-	AST_LIST_ENTRY(devstate_cb) list;
-};
-
-/*! \brief A device state watcher list */
-static AST_LIST_HEAD_STATIC(devstate_cbs, devstate_cb);
-
-struct state_change {
-	AST_LIST_ENTRY(state_change) list;
-	char device[1];
-};
-
-/*! \brief The state change queue. State changes are queued
-	for processing by a separate thread */
-static AST_LIST_HEAD_STATIC(state_changes, state_change);
-
-/*! \brief The device state change notification thread */
-static pthread_t change_thread = AST_PTHREADT_NULL;
-
-/*! \brief Flag for the queue */
-static ast_cond_t change_pending;
-
-/* Forward declarations */
-static int getproviderstate(const char *provider, const char *address);
-
-/*! \brief Find devicestate as text message for output */
-const char *devstate2str(int devstate) 
-{
-	return devstatestring[devstate];
-}
-
-/*! \brief Find out if device is active in a call or not 
-	\note find channels with the device's name in it
-	This function is only used for channels that does not implement 
-	devicestate natively
-*/
-int ast_parse_device_state(const char *device)
-{
-	struct ast_channel *chan;
-	char match[AST_CHANNEL_NAME];
-	int res;
-
-	ast_copy_string(match, device, sizeof(match)-1);
-	strcat(match, "-");
-	chan = ast_get_channel_by_name_prefix_locked(match, strlen(match));
-
-	if (!chan)
-		return AST_DEVICE_UNKNOWN;
-
-	if (chan->_state == AST_STATE_RINGING)
-		res = AST_DEVICE_RINGING;
-	else
-		res = AST_DEVICE_INUSE;
-	
-	ast_channel_unlock(chan);
-
-	return res;
-}
-
-/*! \brief Check device state through channel specific function or generic function */
-int ast_device_state(const char *device)
-{
-	char *buf;
-	char *number;
-	const struct ast_channel_tech *chan_tech;
-	int res = 0;
-	/*! \brief Channel driver that provides device state */
-	char *tech;
-	/*! \brief Another provider of device state */
-	char *provider = NULL;
-	
-	buf = ast_strdupa(device);
-	tech = strsep(&buf, "/");
-	number = buf;
-	if (!number) {
-		provider = strsep(&tech, ":");
-		if (!provider)
-			return AST_DEVICE_INVALID;
-		/* We have a provider */
-		number = tech;
-		tech = NULL;
-	}
-
-	if (provider)  {
-		if(option_debug > 2)
-			ast_log(LOG_DEBUG, "Checking if I can find provider for \"%s\" - number: %s\n", provider, number);
-		return getproviderstate(provider, number);
-	}
-	if (option_debug > 3)
-		ast_log(LOG_DEBUG, "No provider found, checking channel drivers for %s - %s\n", tech, number);
-
-	chan_tech = ast_get_channel_tech(tech);
-	if (!chan_tech)
-		return AST_DEVICE_INVALID;
-
-	if (!chan_tech->devicestate) 	/* Does the channel driver support device state notification? */
-		return ast_parse_device_state(device);	/* No, try the generic function */
-	else {
-		res = chan_tech->devicestate(number);	/* Ask the channel driver for device state */
-		if (res == AST_DEVICE_UNKNOWN) {
-			res = ast_parse_device_state(device);
-			/* at this point we know the device exists, but the channel driver
-			   could not give us a state; if there is no channel state available,
-			   it must be 'not in use'
-			*/
-			if (res == AST_DEVICE_UNKNOWN)
-				res = AST_DEVICE_NOT_INUSE;
-			return res;
-		} else
-			return res;
-	}
-}
-
-/*! \brief Add device state provider */
-int ast_devstate_prov_add(const char *label, ast_devstate_prov_cb_type callback)
-{
-	struct devstate_prov *devprov;
-
-	if (!callback || !(devprov = ast_calloc(1, sizeof(*devprov))))
-		return -1;
-
-	devprov->callback = callback;
-	ast_copy_string(devprov->label, label, sizeof(devprov->label));
-
-	AST_LIST_LOCK(&devstate_provs);
-	AST_LIST_INSERT_HEAD(&devstate_provs, devprov, list);
-	AST_LIST_UNLOCK(&devstate_provs);
-
-	return 0;
-}
-
-/*! \brief Remove device state provider */
-void ast_devstate_prov_del(const char *label)
-{
-	struct devstate_prov *devcb;
-
-	AST_LIST_LOCK(&devstate_provs);
-	AST_LIST_TRAVERSE_SAFE_BEGIN(&devstate_provs, devcb, list) {
-		if (!strcasecmp(devcb->label, label)) {
-			AST_LIST_REMOVE_CURRENT(&devstate_provs, list);
-			free(devcb);
-			break;
-		}
-	}
-	AST_LIST_TRAVERSE_SAFE_END;
-	AST_LIST_UNLOCK(&devstate_provs);
-}
-
-/*! \brief Get provider device state */
-static int getproviderstate(const char *provider, const char *address)
-{
-	struct devstate_prov *devprov;
-	int res = AST_DEVICE_INVALID;
-
-
-	AST_LIST_LOCK(&devstate_provs);
-	AST_LIST_TRAVERSE_SAFE_BEGIN(&devstate_provs, devprov, list) {
-		if(option_debug > 4)
-			ast_log(LOG_DEBUG, "Checking provider %s with %s\n", devprov->label, provider);
-
-		if (!strcasecmp(devprov->label, provider)) {
-			res = devprov->callback(address);
-			break;
-		}
-	}
-	AST_LIST_TRAVERSE_SAFE_END;
-	AST_LIST_UNLOCK(&devstate_provs);
-	return res;
-}
-
-/*! \brief Add device state watcher */
-int ast_devstate_add(ast_devstate_cb_type callback, void *data)
-{
-	struct devstate_cb *devcb;
-
-	if (!callback || !(devcb = ast_calloc(1, sizeof(*devcb))))
-		return -1;
-
-	devcb->data = data;
-	devcb->callback = callback;
-
-	AST_LIST_LOCK(&devstate_cbs);
-	AST_LIST_INSERT_HEAD(&devstate_cbs, devcb, list);
-	AST_LIST_UNLOCK(&devstate_cbs);
-
-	return 0;
-}
-
-/*! \brief Remove device state watcher */
-void ast_devstate_del(ast_devstate_cb_type callback, void *data)
-{
-	struct devstate_cb *devcb;
-
-	AST_LIST_LOCK(&devstate_cbs);
-	AST_LIST_TRAVERSE_SAFE_BEGIN(&devstate_cbs, devcb, list) {
-		if ((devcb->callback == callback) && (devcb->data == data)) {
-			AST_LIST_REMOVE_CURRENT(&devstate_cbs, list);
-			free(devcb);
-			break;
-		}
-	}
-	AST_LIST_TRAVERSE_SAFE_END;
-	AST_LIST_UNLOCK(&devstate_cbs);
-}
-
-/*! \brief Notify callback watchers of change, and notify PBX core for hint updates
-	Normally executed within a separate thread
-*/
-static void do_state_change(const char *device)
-{
-	int state;
-	struct devstate_cb *devcb;
-
-	state = ast_device_state(device);
-	if (option_debug > 2)
-		ast_log(LOG_DEBUG, "Changing state for %s - state %d (%s)\n", device, state, devstate2str(state));
-
-	AST_LIST_LOCK(&devstate_cbs);
-	AST_LIST_TRAVERSE(&devstate_cbs, devcb, list)
-		devcb->callback(device, state, devcb->data);
-	AST_LIST_UNLOCK(&devstate_cbs);
-
-	ast_hint_state_changed(device);
-}
-
-int ast_device_state_changed_literal(const char *device)
-{
-	struct state_change *change;
-
-	if (option_debug > 2)
-		ast_log(LOG_DEBUG, "Notification of state change to be queued on device/channel %s\n", device);
-
-	if (change_thread == AST_PTHREADT_NULL || !(change = ast_calloc(1, sizeof(*change) + strlen(device)))) {
-		/* we could not allocate a change struct, or */
-		/* there is no background thread, so process the change now */
-		do_state_change(device);
-	} else {
-		/* queue the change */
-		strcpy(change->device, device);
-		AST_LIST_LOCK(&state_changes);
-		AST_LIST_INSERT_TAIL(&state_changes, change, list);
-		if (AST_LIST_FIRST(&state_changes) == change)
-			/* the list was empty, signal the thread */
-			ast_cond_signal(&change_pending);
-		AST_LIST_UNLOCK(&state_changes);
-	}
-
-	return 1;
-}
-
-/*! \brief Accept change notification, add it to change queue */
-int ast_device_state_changed(const char *fmt, ...) 
-{
-	char buf[AST_MAX_EXTENSION];
-	va_list ap;
-
-	va_start(ap, fmt);
-	vsnprintf(buf, sizeof(buf), fmt, ap);
-	va_end(ap);
-	return ast_device_state_changed_literal(buf);
-}
-
-/*! \brief Go through the dev state change queue and update changes in the dev state thread */
-static void *do_devstate_changes(void *data)
-{
-	struct state_change *cur;
-
-	AST_LIST_LOCK(&state_changes);
-	for(;;) {
-		/* the list lock will _always_ be held at this point in the loop */
-		cur = AST_LIST_REMOVE_HEAD(&state_changes, list);
-		if (cur) {
-			/* we got an entry, so unlock the list while we process it */
-			AST_LIST_UNLOCK(&state_changes);
-			do_state_change(cur->device);
-			free(cur);
-			AST_LIST_LOCK(&state_changes);
-		} else {
-			/* there was no entry, so atomically unlock the list and wait for
-			   the condition to be signalled (returns with the lock held) */
-			ast_cond_wait(&change_pending, &state_changes.lock);
-		}
-	}
-
-	return NULL;
-}
-
-/*! \brief Initialize the device state engine in separate thread */
-int ast_device_state_engine_init(void)
-{
-	ast_cond_init(&change_pending, NULL);
-	if (ast_pthread_create_background(&change_thread, NULL, do_devstate_changes, NULL) < 0) {
-		ast_log(LOG_ERROR, "Unable to start device state change thread.\n");
-		return -1;
-	}
-
-	return 0;
-}