X-Git-Url: https://gerrit.automotivelinux.org/gerrit/gitweb?p=staging%2Fsoundmanager.git;a=blobdiff_plain;f=libsoundmanager%2Flibsoundmanager.cpp;fp=libsoundmanager%2Flibsoundmanager.cpp;h=9f77723925e8500835d464d40fc6c0e996364f98;hp=0000000000000000000000000000000000000000;hb=2e602801b372b0b68111316b89f567213e3ea378;hpb=f743c3428f41b8d127e538ea8a6505a0c882cdb2 diff --git a/libsoundmanager/libsoundmanager.cpp b/libsoundmanager/libsoundmanager.cpp new file mode 100644 index 0000000..9f77723 --- /dev/null +++ b/libsoundmanager/libsoundmanager.cpp @@ -0,0 +1,447 @@ +/* + * Copyright (c) 2017 TOYOTA MOTOR CORPORATION + * + * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include +#include +#include +#include +#include +#include +#include + +#define ELOG(args,...) _ELOG(__FUNCTION__,__LINE__,args,##__VA_ARGS__) +#define DLOG(args,...) _DLOG(__FUNCTION__,__LINE__,args,##__VA_ARGS__) + +using namespace std; + +static void _DLOG(const char* func, const int line, const char* log, ...); +static void _ELOG(const char* func, const int line, const char* log, ...); +static bool has_verb(const string& verb); +static const char API[] = "soundmanager"; + +static void _on_hangup_static(void *closure, struct afb_wsj1 *wsj) +{ + static_cast(closure)->on_hangup(NULL,wsj); +} + +static void _on_call_static(void *closure, const char *api, const char *verb, struct afb_wsj1_msg *msg) +{ + /* LibSoundmanager is not called from other process */ +} + +static void _on_event_static(void* closure, const char* event, struct afb_wsj1_msg *msg) +{ + static_cast(closure)->on_event(NULL,event,msg); +} + +static void _on_reply_static(void *closure, struct afb_wsj1_msg *msg) +{ + static_cast(closure)->on_reply(NULL,msg); +} + + +/** + * This function is constructor + * + * #### Parameters + * - port [in] : This argument should be specified to the port number to be used for websocket + * - token [in] : This argument should be specified to the token to be used for websocket + * + * #### Rreturn + * Nothing + * + * #### Note + * Use this constructor + * + */ +LibSoundmanager::LibSoundmanager(const int port, const string& token) +{ + int ret; + if(port > 0 && token.size() > 0) + { + mport = port; + mtoken = token; + } + else + { + ELOG("port and token should be > 0, Initial port and token uses."); + } + + ret = initialize_websocket(); + if(ret != 0 ) + { + ELOG("Failed to initialize websocket"); + } + else{ + DLOG("Initialized"); + } +} + +LibSoundmanager::~LibSoundmanager() +{ + if(mploop) + { + sd_event_unref(mploop); + } + if(sp_websock != NULL) + { + free(sp_websock); + } +} + +/** + * This function register callback function for reply/event message from sound manager + * + * #### Parameters + * - event_cb [in] : This argument should be specified to the callback for subscribed event + * - reply_cb [in] : This argument should be specified to the reply callback for call function + * + * #### Rreturn + * - Returns 0 on success or -1 in case of error. + * + * #### Note + * Event callback is invoked by sound manager for event you subscribed. + * If you would like to get event, please call subscribe function before/after this function + */ +void LibSoundmanager::register_callback( + void (*event_cb)(const std::string& event, struct json_object* event_contents), + void (*reply_cb)(struct json_object* reply_contents), + void (*hangup_cb)(void)) +{ + onEvent = event_cb; + onReply = reply_cb; + onHangup = hangup_cb; +} + +int LibSoundmanager::initialize_websocket() +{ + mploop = NULL; + onEvent = nullptr; + onReply = nullptr; + int ret = sd_event_default(&mploop); + if(ret < 0) + { + ELOG("Failed to create event loop"); + goto END; + } + /* Initialize interface from websocket */ + + minterface.on_hangup = _on_hangup_static; + minterface.on_call = _on_call_static; /* Is this necessary? */ + minterface.on_event = _on_event_static; + muri += "ws://localhost:" + to_string(mport) + "/api?token=" + mtoken; /*To be modified*/ + sp_websock = afb_ws_client_connect_wsj1(mploop, muri.c_str(), &minterface, this); + if(sp_websock == NULL) + { + ELOG("Failed to create websocket connection"); + goto END; + } + + /* creates the evsrc */ + //ret = sd_event_add_io(mploop,&mevent_src, sp_websock->fd, EPOLLIN, event_callback, NULL); + + return 0; +END: + if(mploop) + { + sd_event_unref(mploop); + } + return -1; +} + +static void *event_loop_run(void *args) +{ + struct sd_event* loop = (struct sd_event*)(args); + DLOG("start eventloop"); + for(;;) + sd_event_run(loop, 30000000); +} + +/** + * This function start receiving the reply/event message from sound manager + * + * #### Parameters + * Nothing + * #### Rreturn + * - Returns thread_id on success or -1 in case of error. + * + * #### Note + * + */ +int LibSoundmanager::run_eventloop() +{ + if(mploop && sp_websock) + { + pthread_t thread_id; + int ret = pthread_create(&thread_id, NULL, event_loop_run, mploop); + if(ret != 0) + { + ELOG("Cannot run eventloop due to error:%d", errno); + return -1; + } + else + return thread_id; + } + else + { + ELOG("Connecting is not established yet"); + return -1; + } +} + +/** + * This function calls the API of Audio Manager via WebSocket + * + * #### Parameters + * - verb [in] : This argument should be specified to the API name (e.g. "connect") + * - arg [in] : This argument should be specified to the argument of API. And this argument expects JSON object + * + * #### Rreturn + * - Returns 0 on success or -1 in case of error. + * + * #### Note + * To call Audio Manager's APIs, the application should set its function name, arguments to JSON format. + * + */ +int LibSoundmanager::call(const string& verb, struct json_object* arg) +{ + int ret; + if(!sp_websock) + { + return -1; + } + if (!has_verb(verb)) + { + ELOG("verb doesn't exit"); + return -1; + } + ret = afb_wsj1_call_j(sp_websock, API, verb.c_str(), arg, _on_reply_static, this); + if (ret < 0) { + ELOG("Failed to call verb:%s",verb.c_str()); + } + return ret; +} + +/** + * This function calls the API of Audio Manager via WebSocket + * This function is overload function of "call" + * + * #### Parameters + * - verb [in] : This argument should be specified to the API name (e.g. "connect") + * - arg [in] : This argument should be specified to the argument of API. And this argument expects JSON object + * + * #### Rreturn + * - Returns 0 on success or -1 in case of error. + * + * #### Note + * To call Audio Manager's APIs, the application should set its function name, arguments to JSON format. + * + */ +int LibSoundmanager::call(const char* verb, struct json_object* arg) +{ + int ret; + if(!sp_websock) + { + return -1; + } + if (!has_verb(string(verb))) + { + ELOG("verb doesn't exit"); + return -1; + } + ret = afb_wsj1_call_j(sp_websock, API, verb, arg, _on_reply_static, this); + if (ret < 0) { + ELOG("Failed to call verb:%s",verb); + } + return ret; +} + +/** + * Register callback function for each event + * + * #### Parameters + * - event_name [in] : This argument should be specified to the event name + * + * #### Rreturn + * - Returns 0 on success or -1 in case of error. + * + * #### Note + * This function enables to get an event to your callback function. + * Regarding the list of event name, please refer to CommandSender API and RountingSender API. + * + */ +int LibSoundmanager::subscribe(const string& event_name) +{ + if(!sp_websock) + { + return -1; + } + struct json_object* j_obj = json_object_new_object(); + json_object_object_add(j_obj, "event", json_object_new_string(event_name.c_str())); + + int ret = afb_wsj1_call_j(sp_websock, API, "subscribe", j_obj, _on_reply_static, this); + if (ret < 0) { + ELOG("Failed to call verb:%s",__FUNCTION__); + } + return ret; +} + +/** + * Unregister callback function for each event + * + * #### Parameters + * - event_name [in] : This argument should be specified to the event name + * + * #### Rreturn + * - Returns 0 on success or -1 in case of error. + * + * #### Note + * This function disables to get an event to your callback function. + * + */ +int LibSoundmanager::unsubscribe(const string& event_name) +{ + if(!sp_websock) + { + return -1; + } + struct json_object* j_obj = json_object_new_object(); + json_object_object_add(j_obj, "event", json_object_new_string(event_name.c_str())); + + int ret = afb_wsj1_call_j(sp_websock, API, "unsubscribe", j_obj, _on_reply_static, this); + if (ret < 0) { + ELOG("Failed to call verb:%s",__FUNCTION__); + } + return ret; +} + +am_Error_e LibSoundmanager::connect(const am_sourceID_t sourceID, const am_sinkID_t sinkID, am_mainConnectionID_t& mainConnectionID) +{ + /*int ret; + char *key; + rc = asprintf(&key, "%d:%s/%s", ++num, api, "connect"); + ret = afb_wsj1_call_s(wsj1, api, verb, object, on_reply, key); + if(ret < 0) + { + fprintf(stderr, "calling %s/%s(%s) failed: %m\n", api, verb, object); + + }*/ + /* open the json scripts */ + // get mainconnedction ID */ + //mainConnectionID = xx; + return E_OK; +} + +am_Error_e LibSoundmanager::disconnect(const am_mainConnectionID_t mainConnectionID) +{ + return E_OK; +} + +/*const struct afb_wsj1* LibSoundmanager::get_websocket_handler() +{ + if(sp_websock) + { + return sp_websock; + } + return nullptr; +} + +const struct sd_event* LibSoundmanager::get_sd_event() +{ + if(mploop) + { + return mploop; + } + return nullptr; +}*/ + +/************* Callback Function *************/ + +void LibSoundmanager::on_hangup(void *closure, struct afb_wsj1 *wsj) +{ + DLOG("%s called", __FUNCTION__); + if(onHangup != nullptr) + { + onHangup(); + } +} + +void LibSoundmanager::on_call(void *closure, const char *api, const char *verb, struct afb_wsj1_msg *msg) +{ +} + +/* +* event is like "soundmanager/newMainConnection" +* msg is like {"event":"soundmanager\/newMainConnection","data":{"mainConnectionID":3,"sourceID":101,"sinkID":100,"delay":0,"connectionState":4},"jtype":"afb-event"})} +* ^key^ ^^^^^^^^^^^^ value ^^^^^^^^^^^^ +* so you can get + event name : struct json_object obj = json_object_object_get(msg,"event") +*/ +void LibSoundmanager::on_event(void *closure, const char *event, struct afb_wsj1_msg *msg) +{ + cout << "ON-EVENT:" << event << "(" << afb_wsj1_msg_object_s(msg) << ")" << endl; + if(onEvent != nullptr) + { + const string ev(event); + struct json_object* ev_contents = afb_wsj1_msg_object_j(msg); + onEvent(ev, ev_contents); + } +} + +void LibSoundmanager::on_reply(void *closure, struct afb_wsj1_msg *msg) +{ + cout << "ON-REPLY:" << "(" << afb_wsj1_msg_object_s(msg) << ")" << endl; + if(onReply != nullptr) + { + struct json_object* reply = afb_wsj1_msg_object_j(msg); + onReply(reply); + } +} + +/* Internal Function in libsoundmanager */ + +static void _ELOG(const char* func, const int line, const char* log, ...) +{ + char *message; + va_list args; + va_start(args, log); + if (log == NULL || vasprintf(&message, log, args) < 0) + message = NULL; + cout << "[ERROR]" << func << "(" << line << "):" << message << endl; + va_end(args); + free(message); +} + +static void _DLOG(const char* func, const int line, const char* log, ...) +{ + char *message; + va_list args; + va_start(args, log); + if (log == NULL || vasprintf(&message, log, args) < 0) + message = NULL; + cout << "[DEBUG]" << func << "(" << line << "):" << message << endl; + va_end(args); + free(message); +} + +static bool has_verb(const string& verb) +{ + DLOG("verb is %s", verb.c_str()); + if(find(api_list.begin(), api_list.end(), verb) != api_list.end()) + return true; + else + return false; +}