[Freeswitch-svn] [commit] r8250 - freeswitch/trunk/src/mod/endpoints/mod_reference
Freeswitch SVN
anthm at freeswitch.org
Fri May 2 13:51:48 EDT 2008
Author: anthm
Date: Fri May 2 13:51:48 2008
New Revision: 8250
Added:
freeswitch/trunk/src/mod/endpoints/mod_reference/
freeswitch/trunk/src/mod/endpoints/mod_reference/Makefile
freeswitch/trunk/src/mod/endpoints/mod_reference/mod_reference.c
Log:
add
Added: freeswitch/trunk/src/mod/endpoints/mod_reference/Makefile
==============================================================================
--- (empty file)
+++ freeswitch/trunk/src/mod/endpoints/mod_reference/Makefile Fri May 2 13:51:48 2008
@@ -0,0 +1,2 @@
+MODNAME=mod_conference
+include ../../../../build/modmake.rules
Added: freeswitch/trunk/src/mod/endpoints/mod_reference/mod_reference.c
==============================================================================
--- (empty file)
+++ freeswitch/trunk/src/mod/endpoints/mod_reference/mod_reference.c Fri May 2 13:51:48 2008
@@ -0,0 +1,603 @@
+/*
+ * FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
+ * Copyright (C) 2005/2006, Anthony Minessale II <anthmct at yahoo.com>
+ *
+ * Version: MPL 1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
+ *
+ * The Initial Developer of the Original Code is
+ * Anthony Minessale II <anthmct at yahoo.com>
+ * Portions created by the Initial Developer are Copyright (C)
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Anthony Minessale II <anthmct at yahoo.com>
+ *
+ *
+ * mod_reference.c -- REFERENCE Endpoint Module
+ *
+ */
+#include <switch.h>
+
+SWITCH_MODULE_LOAD_FUNCTION(mod_reference_load);
+SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_reference_shutdown);
+//SWITCH_MODULE_RUNTIME_FUNCTION(mod_reference_runtime);
+SWITCH_MODULE_DEFINITION(mod_reference, mod_reference_load, mod_reference_shutdown, NULL);//mod_reference_runtime);
+
+
+switch_endpoint_interface_t *reference_endpoint_interface;
+static switch_memory_pool_t *module_pool = NULL;
+static int running = 1;
+
+
+typedef enum {
+ TFLAG_IO = (1 << 0),
+ TFLAG_INBOUND = (1 << 1),
+ TFLAG_OUTBOUND = (1 << 2),
+ TFLAG_DTMF = (1 << 3),
+ TFLAG_VOICE = (1 << 4),
+ TFLAG_HANGUP = (1 << 5),
+ TFLAG_LINEAR = (1 << 6),
+ TFLAG_CODEC = (1 << 7),
+ TFLAG_BREAK = (1 << 8)
+} TFLAGS;
+
+typedef enum {
+ GFLAG_MY_CODEC_PREFS = (1 << 0)
+} GFLAGS;
+
+
+static struct {
+ int debug;
+ char *ip;
+ int port;
+ char *dialplan;
+ char *codec_string;
+ char *codec_order[SWITCH_MAX_CODECS];
+ int codec_order_last;
+ char *codec_rates_string;
+ char *codec_rates[SWITCH_MAX_CODECS];
+ int codec_rates_last;
+ unsigned int flags;
+ int calls;
+ switch_mutex_t *mutex;
+} globals;
+
+struct private_object {
+ unsigned int flags;
+ switch_codec_t read_codec;
+ switch_codec_t write_codec;
+ switch_frame_t read_frame;
+ unsigned char databuf[SWITCH_RECOMMENDED_BUFFER_SIZE];
+ switch_core_session_t *session;
+ switch_caller_profile_t *caller_profile;
+ switch_mutex_t *mutex;
+ switch_mutex_t *flag_mutex;
+ //switch_thread_cond_t *cond;
+};
+
+typedef struct private_object private_t;
+
+
+SWITCH_DECLARE_GLOBAL_STRING_FUNC(set_global_dialplan, globals.dialplan);
+SWITCH_DECLARE_GLOBAL_STRING_FUNC(set_global_codec_string, globals.codec_string);
+SWITCH_DECLARE_GLOBAL_STRING_FUNC(set_global_codec_rates_string, globals.codec_rates_string);
+SWITCH_DECLARE_GLOBAL_STRING_FUNC(set_global_ip, globals.ip);
+
+
+
+static switch_status_t channel_on_init(switch_core_session_t *session);
+static switch_status_t channel_on_hangup(switch_core_session_t *session);
+static switch_status_t channel_on_ring(switch_core_session_t *session);
+static switch_status_t channel_on_loopback(switch_core_session_t *session);
+static switch_status_t channel_on_transmit(switch_core_session_t *session);
+static switch_call_cause_t channel_outgoing_channel(switch_core_session_t *session,
+ switch_caller_profile_t *outbound_profile,
+ switch_core_session_t **new_session, switch_memory_pool_t **pool, switch_originate_flag_t flags);
+static switch_status_t channel_read_frame(switch_core_session_t *session, switch_frame_t **frame, int timeout, switch_io_flag_t flags, int stream_id);
+static switch_status_t channel_write_frame(switch_core_session_t *session, switch_frame_t *frame, int timeout, switch_io_flag_t flags, int stream_id);
+static switch_status_t channel_kill_channel(switch_core_session_t *session, int sig);
+
+
+
+static void tech_init(private_t * tech_pvt, switch_core_session_t *session)
+{
+ tech_pvt->read_frame.data = tech_pvt->databuf;
+ tech_pvt->read_frame.buflen = sizeof(tech_pvt->databuf);
+ switch_mutex_init(&tech_pvt->mutex, SWITCH_MUTEX_NESTED, switch_core_session_get_pool(session));
+ switch_mutex_init(&tech_pvt->flag_mutex, SWITCH_MUTEX_NESTED, switch_core_session_get_pool(session));
+ switch_core_session_set_private(session, tech_pvt);
+ tech_pvt->session = session;
+}
+
+/*
+ State methods they get called when the state changes to the specific state
+ returning SWITCH_STATUS_SUCCESS tells the core to execute the standard state method next
+ so if you fully implement the state you can return SWITCH_STATUS_FALSE to skip it.
+*/
+static switch_status_t channel_on_init(switch_core_session_t *session)
+{
+ switch_channel_t *channel;
+ private_t *tech_pvt = NULL;
+
+ tech_pvt = switch_core_session_get_private(session);
+ assert(tech_pvt != NULL);
+
+ channel = switch_core_session_get_channel(session);
+ assert(channel != NULL);
+ switch_set_flag_locked(tech_pvt, TFLAG_IO);
+
+ /* Move Channel's State Machine to RING */
+ switch_channel_set_state(channel, CS_RING);
+ switch_mutex_lock(globals.mutex);
+ globals.calls++;
+ switch_mutex_unlock(globals.mutex);
+
+ return SWITCH_STATUS_SUCCESS;
+}
+
+static switch_status_t channel_on_ring(switch_core_session_t *session)
+{
+ switch_channel_t *channel = NULL;
+ private_t *tech_pvt = NULL;
+
+ channel = switch_core_session_get_channel(session);
+ assert(channel != NULL);
+
+ tech_pvt = switch_core_session_get_private(session);
+ assert(tech_pvt != NULL);
+
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "%s CHANNEL RING\n", switch_channel_get_name(channel));
+
+ return SWITCH_STATUS_SUCCESS;
+}
+
+static switch_status_t channel_on_execute(switch_core_session_t *session)
+{
+
+ switch_channel_t *channel = NULL;
+ private_t *tech_pvt = NULL;
+
+ channel = switch_core_session_get_channel(session);
+ assert(channel != NULL);
+
+ tech_pvt = switch_core_session_get_private(session);
+ assert(tech_pvt != NULL);
+
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "%s CHANNEL EXECUTE\n", switch_channel_get_name(channel));
+
+
+ return SWITCH_STATUS_SUCCESS;
+}
+
+static switch_status_t channel_on_hangup(switch_core_session_t *session)
+{
+ switch_channel_t *channel = NULL;
+ private_t *tech_pvt = NULL;
+
+ channel = switch_core_session_get_channel(session);
+ assert(channel != NULL);
+
+ tech_pvt = switch_core_session_get_private(session);
+ assert(tech_pvt != NULL);
+
+ switch_clear_flag_locked(tech_pvt, TFLAG_IO);
+ switch_clear_flag_locked(tech_pvt, TFLAG_VOICE);
+ //switch_thread_cond_signal(tech_pvt->cond);
+
+ if (tech_pvt->read_codec.implementation) {
+ switch_core_codec_destroy(&tech_pvt->read_codec);
+ }
+
+ if (tech_pvt->write_codec.implementation) {
+ switch_core_codec_destroy(&tech_pvt->write_codec);
+ }
+
+
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "%s CHANNEL HANGUP\n", switch_channel_get_name(channel));
+ switch_mutex_lock(globals.mutex);
+ globals.calls--;
+ if (globals.calls < 0) {
+ globals.calls = 0;
+ }
+ switch_mutex_unlock(globals.mutex);
+
+ return SWITCH_STATUS_SUCCESS;
+}
+
+static switch_status_t channel_kill_channel(switch_core_session_t *session, int sig)
+{
+ switch_channel_t *channel = NULL;
+ private_t *tech_pvt = NULL;
+
+ channel = switch_core_session_get_channel(session);
+ assert(channel != NULL);
+
+ tech_pvt = switch_core_session_get_private(session);
+ assert(tech_pvt != NULL);
+
+ switch (sig) {
+ case SWITCH_SIG_KILL:
+ switch_clear_flag_locked(tech_pvt, TFLAG_IO);
+ switch_clear_flag_locked(tech_pvt, TFLAG_VOICE);
+ switch_channel_hangup(channel, SWITCH_CAUSE_NORMAL_CLEARING);
+ //switch_thread_cond_signal(tech_pvt->cond);
+ break;
+ case SWITCH_SIG_BREAK:
+ switch_set_flag_locked(tech_pvt, TFLAG_BREAK);
+ break;
+ default:
+ break;
+ }
+
+ return SWITCH_STATUS_SUCCESS;
+}
+
+static switch_status_t channel_on_loopback(switch_core_session_t *session)
+{
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "CHANNEL LOOPBACK\n");
+ return SWITCH_STATUS_SUCCESS;
+}
+
+static switch_status_t channel_on_transmit(switch_core_session_t *session)
+{
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "CHANNEL TRANSMIT\n");
+ return SWITCH_STATUS_SUCCESS;
+}
+
+static switch_status_t channel_waitfor_read(switch_core_session_t *session, int ms, int stream_id)
+{
+ private_t *tech_pvt = NULL;
+
+ tech_pvt = switch_core_session_get_private(session);
+ assert(tech_pvt != NULL);
+
+ return SWITCH_STATUS_SUCCESS;
+}
+
+static switch_status_t channel_waitfor_write(switch_core_session_t *session, int ms, int stream_id)
+{
+ private_t *tech_pvt = NULL;
+
+ tech_pvt = switch_core_session_get_private(session);
+ assert(tech_pvt != NULL);
+
+ return SWITCH_STATUS_SUCCESS;
+
+}
+
+static switch_status_t channel_send_dtmf(switch_core_session_t *session, const switch_dtmf_t *dtmf)
+{
+ private_t *tech_pvt = switch_core_session_get_private(session);
+ switch_assert(tech_pvt != NULL);
+
+ return SWITCH_STATUS_SUCCESS;
+}
+
+static switch_status_t channel_read_frame(switch_core_session_t *session, switch_frame_t **frame, int timeout, switch_io_flag_t flags, int stream_id)
+{
+ switch_channel_t *channel = NULL;
+ private_t *tech_pvt = NULL;
+ switch_time_t started = switch_time_now();
+ unsigned int elapsed;
+ switch_byte_t *data;
+
+ channel = switch_core_session_get_channel(session);
+ assert(channel != NULL);
+
+ tech_pvt = switch_core_session_get_private(session);
+ assert(tech_pvt != NULL);
+ tech_pvt->read_frame.flags = SFF_NONE;
+ *frame = NULL;
+
+ while (switch_test_flag(tech_pvt, TFLAG_IO)) {
+
+ if (switch_test_flag(tech_pvt, TFLAG_BREAK)) {
+ switch_clear_flag(tech_pvt, TFLAG_BREAK);
+ goto cng;
+ }
+
+ if (!switch_test_flag(tech_pvt, TFLAG_IO)) {
+ return SWITCH_STATUS_FALSE;
+ }
+
+ if (switch_test_flag(tech_pvt, TFLAG_IO) && switch_test_flag(tech_pvt, TFLAG_VOICE)) {
+ switch_clear_flag_locked(tech_pvt, TFLAG_VOICE);
+ if (!tech_pvt->read_frame.datalen) {
+ continue;
+ }
+ *frame = &tech_pvt->read_frame;
+ return SWITCH_STATUS_SUCCESS;
+ }
+
+ if (timeout > -1) {
+ elapsed = (unsigned int) ((switch_time_now() - started) / 1000);
+ if (elapsed >= (unsigned int) timeout) {
+ return SWITCH_STATUS_SUCCESS;
+ }
+ }
+
+
+ switch_yield(1000);
+ }
+
+
+ return SWITCH_STATUS_FALSE;
+
+ cng:
+ data = (switch_byte_t *) tech_pvt->read_frame.data;
+ data[0] = 65;
+ data[1] = 0;
+ tech_pvt->read_frame.datalen = 2;
+ tech_pvt->read_frame.flags = SFF_CNG;
+ *frame = &tech_pvt->read_frame;
+ return SWITCH_STATUS_SUCCESS;
+
+}
+
+static switch_status_t channel_write_frame(switch_core_session_t *session, switch_frame_t *frame, int timeout, switch_io_flag_t flags, int stream_id)
+{
+ switch_channel_t *channel = NULL;
+ private_t *tech_pvt = NULL;
+ //switch_frame_t *pframe;
+
+ channel = switch_core_session_get_channel(session);
+ assert(channel != NULL);
+
+ tech_pvt = switch_core_session_get_private(session);
+ assert(tech_pvt != NULL);
+
+ if (!switch_test_flag(tech_pvt, TFLAG_IO)) {
+ return SWITCH_STATUS_FALSE;
+ }
+#ifdef BIGENDIAN
+ if (switch_test_flag(tech_pvt, TFLAG_LINEAR)) {
+ switch_swap_linear(frame->data, (int) frame->datalen / 2);
+ }
+#endif
+
+
+ return SWITCH_STATUS_SUCCESS;
+
+}
+
+static switch_status_t channel_answer_channel(switch_core_session_t *session)
+{
+ private_t *tech_pvt;
+ switch_channel_t *channel = NULL;
+
+ channel = switch_core_session_get_channel(session);
+ assert(channel != NULL);
+
+ tech_pvt = switch_core_session_get_private(session);
+ assert(tech_pvt != NULL);
+
+
+ return SWITCH_STATUS_SUCCESS;
+}
+
+
+static switch_status_t channel_receive_message(switch_core_session_t *session, switch_core_session_message_t *msg)
+{
+ switch_channel_t *channel;
+ private_t *tech_pvt;
+
+ channel = switch_core_session_get_channel(session);
+ assert(channel != NULL);
+
+ tech_pvt = (private_t *) switch_core_session_get_private(session);
+ assert(tech_pvt != NULL);
+
+ switch (msg->message_id) {
+ case SWITCH_MESSAGE_INDICATE_ANSWER:
+ {
+ channel_answer_channel(session);
+ }
+ break;
+ default:
+ break;
+ }
+
+ return SWITCH_STATUS_SUCCESS;
+}
+
+/* Make sure when you have 2 sessions in the same scope that you pass the appropriate one to the routines
+ that allocate memory or you will have 1 channel with memory allocated from another channel's pool!
+*/
+static switch_call_cause_t channel_outgoing_channel(switch_core_session_t *session,
+ switch_caller_profile_t *outbound_profile,
+ switch_core_session_t **new_session, switch_memory_pool_t **pool, switch_originate_flag_t flags)
+{
+ if ((*new_session = switch_core_session_request(reference_endpoint_interface, pool)) != 0) {
+ private_t *tech_pvt;
+ switch_channel_t *channel;
+ switch_caller_profile_t *caller_profile;
+
+ switch_core_session_add_stream(*new_session, NULL);
+ if ((tech_pvt = (private_t *) switch_core_session_alloc(*new_session, sizeof(private_t))) != 0) {
+ channel = switch_core_session_get_channel(*new_session);
+ tech_init(tech_pvt, *new_session);
+ } else {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Hey where is my memory pool?\n");
+ switch_core_session_destroy(new_session);
+ return SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER;
+ }
+
+ if (outbound_profile) {
+ char name[128];
+
+ snprintf(name, sizeof(name), "REFERENCE/%s", outbound_profile->destination_number);
+ switch_channel_set_name(channel, name);
+
+ caller_profile = switch_caller_profile_clone(*new_session, outbound_profile);
+ switch_channel_set_caller_profile(channel, caller_profile);
+ tech_pvt->caller_profile = caller_profile;
+ } else {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Doh! no caller profile\n");
+ switch_core_session_destroy(new_session);
+ return SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER;
+ }
+
+
+
+ switch_channel_set_flag(channel, CF_OUTBOUND);
+ switch_set_flag_locked(tech_pvt, TFLAG_OUTBOUND);
+ switch_channel_set_state(channel, CS_INIT);
+ return SWITCH_CAUSE_SUCCESS;
+ }
+
+ return SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER;
+
+}
+
+static switch_status_t channel_receive_event(switch_core_session_t *session, switch_event_t *event)
+{
+ struct private_object *tech_pvt = switch_core_session_get_private(session);
+ char *body = switch_event_get_body(event);
+ switch_assert(tech_pvt != NULL);
+
+ if (!body) {
+ body = "";
+ }
+
+ return SWITCH_STATUS_SUCCESS;
+}
+
+
+
+switch_state_handler_table_t reference_state_handlers = {
+ /*.on_init */ channel_on_init,
+ /*.on_ring */ channel_on_ring,
+ /*.on_execute */ channel_on_execute,
+ /*.on_hangup */ channel_on_hangup,
+ /*.on_loopback */ channel_on_loopback,
+ /*.on_transmit */ channel_on_transmit
+};
+
+switch_io_routines_t reference_io_routines = {
+ /*.outgoing_channel */ channel_outgoing_channel,
+ /*.read_frame */ channel_read_frame,
+ /*.write_frame */ channel_write_frame,
+ /*.kill_channel */ channel_kill_channel,
+ /*.waitfor_read */ channel_waitfor_read,
+ /*.waitfor_write */ channel_waitfor_write,
+ /*.send_dtmf */ channel_send_dtmf,
+ /*.receive_message*/ channel_receive_message,
+ /*.receive_event */ channel_receive_event
+};
+
+static switch_status_t load_config(void)
+{
+ char *cf = "reference.conf";
+ switch_xml_t cfg, xml, settings, param;
+
+ memset(&globals, 0, sizeof(globals));
+ switch_mutex_init(&globals.mutex, SWITCH_MUTEX_NESTED, module_pool);
+ if (!(xml = switch_xml_open_cfg(cf, &cfg, NULL))) {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "open of %s failed\n", cf);
+ return SWITCH_STATUS_TERM;
+ }
+
+ if ((settings = switch_xml_child(cfg, "settings"))) {
+ for (param = switch_xml_child(settings, "param"); param; param = param->next) {
+ char *var = (char *) switch_xml_attr_soft(param, "name");
+ char *val = (char *) switch_xml_attr_soft(param, "value");
+
+ if (!strcmp(var, "debug")) {
+ globals.debug = atoi(val);
+ } else if (!strcmp(var, "port")) {
+ globals.port = atoi(val);
+ } else if (!strcmp(var, "ip")) {
+ set_global_ip(val);
+ } else if (!strcmp(var, "codec-master")) {
+ if (!strcasecmp(val, "us")) {
+ switch_set_flag(&globals, GFLAG_MY_CODEC_PREFS);
+ }
+ } else if (!strcmp(var, "dialplan")) {
+ set_global_dialplan(val);
+ } else if (!strcmp(var, "codec-prefs")) {
+ set_global_codec_string(val);
+ globals.codec_order_last = switch_separate_string(globals.codec_string, ',', globals.codec_order, SWITCH_MAX_CODECS);
+ } else if (!strcmp(var, "codec-rates")) {
+ set_global_codec_rates_string(val);
+ globals.codec_rates_last = switch_separate_string(globals.codec_rates_string, ',', globals.codec_rates, SWITCH_MAX_CODECS);
+ }
+ }
+ }
+
+ if (!globals.dialplan) {
+ set_global_dialplan("default");
+ }
+
+ if (!globals.port) {
+ globals.port = 4569;
+ }
+
+ switch_xml_free(xml);
+
+ return SWITCH_STATUS_SUCCESS;
+}
+
+SWITCH_MODULE_LOAD_FUNCTION(mod_reference_load)
+{
+
+ module_pool = pool;
+
+ load_config();
+
+ *module_interface = switch_loadable_module_create_module_interface(pool, modname);
+ reference_endpoint_interface = switch_loadable_module_create_interface(*module_interface, SWITCH_ENDPOINT_INTERFACE);
+ reference_endpoint_interface->interface_name = "reference";
+ reference_endpoint_interface->io_routines = &reference_io_routines;
+ reference_endpoint_interface->state_handler = &reference_state_handlers;
+
+
+
+ /* indicate that the module should continue to be loaded */
+ return SWITCH_STATUS_SUCCESS;
+}
+
+/*
+SWITCH_MODULE_RUNTIME_FUNCTION(mod_reference_runtime)
+{
+ return SWITCH_STATUS_TERM;
+}
+*/
+
+SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_reference_shutdown)
+{
+ int x = 0;
+
+ running = -1;
+
+ while (running) {
+ if (x++ > 100) {
+ break;
+ }
+ switch_yield(20000);
+ }
+ return SWITCH_STATUS_SUCCESS;
+}
+
+/* For Emacs:
+ * Local Variables:
+ * mode:c
+ * indent-tabs-mode:t
+ * tab-width:4
+ * c-basic-offset:4
+ * End:
+ * For VIM:
+ * vim:set softtabstop=4 shiftwidth=4 tabstop=4 expandtab:
+ */
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