diff options
Diffstat (limited to 'src/runxdg.cpp')
| -rw-r--r-- | src/runxdg.cpp | 621 |
1 files changed, 621 insertions, 0 deletions
diff --git a/src/runxdg.cpp b/src/runxdg.cpp new file mode 100644 index 0000000..5553ff5 --- /dev/null +++ b/src/runxdg.cpp @@ -0,0 +1,621 @@ +/* + * Copyright (c) 2017 Panasonic Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <stdarg.h> +#include <sys/stat.h> +#include <sys/time.h> +#include <sys/wait.h> + +#include <cstdio> + +#include "cpptoml/cpptoml.h" + +#include "runxdg.hpp" + +#define RUNXDG_CONFIG "runxdg.toml" + +void fatal(const char* format, ...) +{ + va_list va_args; + va_start(va_args, format); + vfprintf(stderr, format, va_args); + va_end(va_args); + + exit(EXIT_FAILURE); +} + +void warn(const char* format, ...) +{ + va_list va_args; + va_start(va_args, format); + vfprintf(stderr, format, va_args); + va_end(va_args); +} + +void debug(const char* format, ...) +{ + va_list va_args; + va_start(va_args, format); + vfprintf(stderr, format, va_args); + va_end(va_args); +} + +void RunXDG::notify_ivi_control_cb (ilmObjectType object, t_ilm_uint id, + t_ilm_bool created) +{ + if (object == ILM_SURFACE) { + struct ilmSurfaceProperties surf_props; + + ilm_getPropertiesOfSurface(id, &surf_props); + pid_t surf_pid = surf_props.creatorPid; + + if (!created) { + AGL_DEBUG("ivi surface (id=%d, pid=%d) destroyed.", id, surf_pid); + m_launcher->unregister_surfpid(surf_pid); + m_surfaces.erase(surf_pid); + return; + } + + AGL_DEBUG("ivi surface (id=%d, pid=%d) is created.", id, surf_pid); + + m_launcher->register_surfpid(surf_pid); + if (m_launcher->m_rid && + surf_pid == m_launcher->find_surfpid_by_rid(m_launcher->m_rid)) { + setup_surface(id); + } + m_surfaces[surf_pid] = id; + } else if (object == ILM_LAYER) { + if (created) + AGL_DEBUG("ivi layer: %d created.", id); + else + AGL_DEBUG("ivi layer: %d destroyed.", id); + } +} + +void RunXDG::notify_ivi_control_cb_static (ilmObjectType object, t_ilm_uint id, + t_ilm_bool created, void *user_data) +{ + RunXDG *runxdg = static_cast<RunXDG*>(user_data); + runxdg->notify_ivi_control_cb(object, id, created); +} + +int POSIXLauncher::launch (std::string& name) +{ + pid_t pid; + + pid = fork(); + if (pid < 0) { + AGL_DEBUG("cannot fork()"); + return -1; + } + + if (pid == 0) { + // child + const char **argv = new const char * [m_args_v.size() + 1]; + for (unsigned int i = 0; i < m_args_v.size(); ++i) { + argv[i] = m_args_v[i].c_str(); + } + argv[m_args_v.size()] = NULL; + + execv(argv[0], (char **)argv); + + AGL_FATAL("fail to execve(%s)", argv[0]); + } + // parent + + return pid; +} + +void POSIXLauncher::loop (volatile sig_atomic_t& e_flag) +{ + int status; + pid_t ret; + + while (!e_flag) { + ret = waitpid(m_rid, &status, 0); + if (ret < 0) { + if (errno == EINTR) { + AGL_DEBUG("catch EINTR while waitpid()"); + continue; + } + break; + } + } + + if (ret > 0) { + if (WIFEXITED(status)) { + AGL_DEBUG("%s terminated, return %d", m_args_v[0].c_str(), + WEXITSTATUS(status)); + } + if (WIFSIGNALED(status)) { + AGL_DEBUG("%s terminated by signal %d", m_args_v[0].c_str(), + WTERMSIG(status)); + } + } + + if (e_flag) { + /* parent killed by someone, so need to kill children */ + AGL_DEBUG("killpg(0, SIGTERM)"); + killpg(0, SIGTERM); + } +} + +int AFMDBusLauncher::get_dbus_message_bus (GBusType bus_type, + GDBusConnection * &conn) +{ + GError* err = NULL; + + conn = g_bus_get_sync(bus_type, NULL, &err); + if (err) { + AGL_WARN("Failed to get session bus: %s", err->message); + g_clear_error (&err); + return -1; + } + + return 0; +} + +int AFMDBusLauncher::launch (std::string &name) +{ + GDBusMessage* msg; + GDBusMessage* re; + GDBusConnection* conn; + GError* err = NULL; + GVariant* body; + char* val; + const char* xdg_app = name.c_str(); + + if (get_dbus_message_bus(G_BUS_TYPE_SESSION, conn)) { + return -1; + } + + msg = g_dbus_message_new_method_call ( + DBUS_SERVICE, + DBUS_PATH, + DBUS_INTERFACE, + "start"); + + if (msg == NULL) { + AGL_WARN("Failed to allocate the dbus message"); + g_object_unref(conn); + return -1; + } + + g_dbus_message_set_body(msg, g_variant_new("(s)", xdg_app)); + + re = g_dbus_connection_send_message_with_reply_sync ( + conn, msg, G_DBUS_SEND_MESSAGE_FLAGS_NONE, -1, NULL, NULL, &err); + + if (err != NULL) { + AGL_WARN("unable to send message: %s", err->message); + g_clear_error(&err); + g_object_unref(conn); + g_object_unref(msg); + return -1; + } + + g_dbus_connection_flush_sync(conn, NULL, &err); + if (err != NULL) { + AGL_WARN("unable to flush message queue: %s", err->message); + g_object_unref(conn); + g_object_unref(msg); + g_object_unref(re); + return -1; + } + + body = g_dbus_message_get_body(re); + g_variant_get(body, "(&s)", &val); + + AGL_DEBUG("dbus message get (%s)", val); + + pid_t rid = std::stol(std::string(val)); + AGL_DEBUG("RID = %d", rid); + + g_object_unref(conn); + g_object_unref(msg); + g_object_unref(re); + + return rid; +} + +volatile sig_atomic_t e_flag = 0; + +static void sigterm_handler (int signum) +{ + e_flag = 1; +} + +static void init_signal (void) +{ + struct sigaction act, info; + + /* Setup signal for SIGTERM */ + if (!sigaction(SIGTERM, NULL, &info)) { + if (info.sa_handler == SIG_IGN) { + AGL_DEBUG("SIGTERM being ignored."); + } else if (info.sa_handler == SIG_DFL) { + AGL_DEBUG("SIGTERM being defaulted."); + } + } + + act.sa_handler = &sigterm_handler; + if (sigemptyset(&act.sa_mask) != 0) { + AGL_FATAL("Cannot initialize sigaction"); + } + act.sa_flags = 0; + + if (sigaction(SIGTERM, &act, &info) != 0) { + AGL_FATAL("Cannot register signal handler for SIGTERM"); + } +} + +int RunXDG::init_wm (void) +{ + m_wm = new LibWindowmanager(); + if (m_wm->init(m_port, m_token.c_str())) { + AGL_DEBUG("cannot initialize windowmanager"); + return -1; + } + + std::function< void(json_object*) > h_active = [](json_object* object) { + AGL_DEBUG("Got Event_Active"); + }; + + std::function< void(json_object*) > h_inactive = [](json_object* object) { + AGL_DEBUG("Got Event_Inactive"); + }; + + std::function< void(json_object*) > h_visible = [](json_object* object) { + AGL_DEBUG("Got Event_Visible"); + }; + + std::function< void(json_object*) > h_invisible = [](json_object* object) { + AGL_DEBUG("Got Event_Invisible"); + }; + + std::function< void(json_object*) > h_syncdraw = + [this](json_object* object) { + AGL_DEBUG("Got Event_SyncDraw"); + json_object* obj = json_object_new_object(); + json_object_object_add(obj, this->m_wm->kKeyDrawingName, + json_object_new_string(this->m_role.c_str())); + this->m_wm->endDraw(obj); + }; + + std::function< void(json_object*) > h_flushdraw= [](json_object* object) { + AGL_DEBUG("Got Event_FlushDraw"); + }; + + m_wm->set_event_handler(LibWindowmanager::Event_Active, h_active); + m_wm->set_event_handler(LibWindowmanager::Event_Inactive, h_inactive); + m_wm->set_event_handler(LibWindowmanager::Event_Visible, h_visible); + m_wm->set_event_handler(LibWindowmanager::Event_Invisible, h_invisible); + m_wm->set_event_handler(LibWindowmanager::Event_SyncDraw, h_syncdraw); + m_wm->set_event_handler(LibWindowmanager::Event_FlushDraw, h_flushdraw); + + return 0; +} + +int RunXDG::init_hs (void) +{ + m_hs = new LibHomeScreen(); + if (m_hs->init(m_port, m_token.c_str())) { + AGL_DEBUG("cannot initialize homescreen"); + return -1; + } + + std::function< void(json_object*) > handler = [this] (json_object* object) { + json_object *val; + + if (json_object_object_get_ex(object, "application_name", &val)) { + const char *name = json_object_get_string(val); + + AGL_DEBUG("Event_TapShortcut <%s>", name); + + if (strcmp(name, this->m_role.c_str()) == 0) { + // check app exist and re-launch if needed + AGL_DEBUG("Activesurface %s ", this->m_role.c_str()); + + json_object *obj = json_object_new_object(); + json_object_object_add(obj, this->m_wm->kKeyDrawingName, + json_object_new_string(this->m_role.c_str())); + json_object_object_add(obj, this->m_wm->kKeyDrawingArea, + json_object_new_string("normal.full")); + + this->m_wm->activateSurface(obj); + } + } + }; + m_hs->set_event_handler(LibHomeScreen::Event_TapShortcut, handler); + + std::function< void(json_object*) > h_default= [](json_object* object) { + const char *j_str = json_object_to_json_string(object); + AGL_DEBUG("Got event [%s]", j_str); + }; + m_hs->set_event_handler(LibHomeScreen::Event_OnScreenMessage, h_default); + + return 0; +} + +int RunXDG::parse_config (const char *path_to_config) +{ + auto config = cpptoml::parse_file(path_to_config); + + if (config == nullptr) { + AGL_DEBUG("cannot parse %s", path_to_config); + return -1; + } + + AGL_DEBUG("[%s] parsed", path_to_config); + + auto app = config->get_table("application"); + if (app == nullptr) { + AGL_DEBUG("cannto find [application]"); + return -1; + } + + m_role = *(app->get_as<std::string>("role")); + m_path = *(app->get_as<std::string>("path")); + if (m_role.empty() || m_path.empty()) { + AGL_FATAL("No name or path defined in config"); + } + + std::string method = *(app->get_as<std::string>("method")); + if (method.empty()) { + method = std::string("POSIX"); + } + + POSIXLauncher *pl; + + /* Setup API of launcher */ + if (method == "POSIX") { + pl = new POSIXLauncher(); + m_launcher = pl; + } else if (method == "AFM_DBUS") { + m_launcher = new AFMDBusLauncher(); + return 0; + } else if (method == "AFM_WEBSOCKET") { + m_launcher = new AFMWebSocketLauncher(); + return 0; + } else { + AGL_FATAL("Unknown type of launcher"); + } + + // setup argv[0] + pl->m_args_v.push_back(m_path); + + // setup argv[1..n] + auto params = app->get_array_of<std::string>("params"); + for (const auto& param : *params) + { + pl->m_args_v.push_back(param); + AGL_DEBUG("params[%s]", param.c_str()); + } + + return 0; +} + +RunXDG::RunXDG (int port, const char* token, const char* id) +{ + m_id = std::string(id); + m_port = port; + m_token = std::string(token); + + + auto path = std::string(getenv("AFM_APP_INSTALL_DIR")); + path = path + "/" + RUNXDG_CONFIG; + + // Parse config file of runxdg + if (parse_config(path.c_str())) { + AGL_FATAL("Error in config"); + } + + AGL_DEBUG("id=[%s], name=[%s], path=[%s], port=%lu, token=[%s]", + m_id.c_str(), m_role.c_str(), m_path.c_str(), + m_port, m_token.c_str()); + + // Setup HomeScreen/WindowManager API + if (init_wm()) + AGL_FATAL("cannot setup wm API"); + + if (init_hs()) + AGL_FATAL("cannot setup hs API"); + + // Setup ilmController API + m_ic = new ILMControl(notify_ivi_control_cb_static, this); + + AGL_DEBUG("RunXDG created."); +} + +void RunXDG::setup_surface (int id) +{ + std::string sid = std::to_string(id); + + // This surface is mine, register pair app_name and ivi id. + json_object *obj = json_object_new_object(); + json_object_object_add(obj, m_wm->kKeyDrawingName, + json_object_new_string(m_role.c_str())); + json_object_object_add(obj, m_wm->kKeyIviId, + json_object_new_string(sid.c_str())); + + AGL_DEBUG("requestSurfaceXDG(%s,%s)", m_role.c_str(), sid.c_str()); + m_wm->requestSurfaceXDG(obj); + + if (m_pending_create) { + // Recovering 1st time tap_shortcut is dropped because + // the application has not been run yet (1st time launch) + m_pending_create = false; + + json_object *obj = json_object_new_object(); + json_object_object_add(obj, m_wm->kKeyDrawingName, + json_object_new_string(m_role.c_str())); + json_object_object_add(obj, m_wm->kKeyDrawingArea, + json_object_new_string("normal.full")); + m_wm->activateSurface(obj); + } +} + +void POSIXLauncher::register_surfpid (pid_t surf_pid) +{ + if (surf_pid == m_rid) { + if (!std::count(m_pid_v.begin(), m_pid_v.end(), surf_pid)) { + AGL_DEBUG("surface creator(pid=%d) registered", surf_pid); + m_pid_v.push_back(surf_pid); + AGL_DEBUG("m_pid_v.count(%d) = %d", surf_pid, + std::count(m_pid_v.begin(), m_pid_v.end(), surf_pid)); + } + } +} + +void POSIXLauncher::unregister_surfpid (pid_t surf_pid) +{ + auto itr = m_pid_v.begin(); + while (itr != m_pid_v.end()) { + if (*itr == surf_pid) { + m_pid_v.erase(itr++); + } else { + ++itr; + } + } +} + +pid_t POSIXLauncher::find_surfpid_by_rid (pid_t rid) +{ + AGL_DEBUG("find surfpid by rid(%d)", rid); + if (std::count(m_pid_v.begin(), m_pid_v.end(), rid)) { + AGL_DEBUG("found return(%d)", rid); + return rid; + } + + return -1; +} + +void AFMLauncher::register_surfpid (pid_t surf_pid) +{ + pid_t pgid = 0; + + pgid = getpgid(surf_pid); + + if (pgid < 0) { + AGL_DEBUG("fail to get process group id"); + return; + } + + AGL_DEBUG("Surface creator is pid=%d, pgid=%d", surf_pid, pgid); + + if (!m_pgids.count(pgid)) { + m_pgids[pgid] = surf_pid; + } +} + +void AFMLauncher::unregister_surfpid (pid_t surf_pid) +{ + auto itr = m_pgids.begin(); + while (itr != m_pgids.end()) { + if (itr->second == surf_pid) { + m_pgids.erase(itr++); + } else { + ++itr; + } + } +} + +pid_t AFMLauncher::find_surfpid_by_rid (pid_t rid) +{ + auto itr = m_pgids.find(rid); + if (itr != m_pgids.end()) + return itr->second; + + return -1; +} + +void RunXDG::start (void) +{ + // Initialize SIGTERM handler + init_signal(); + + /* Launch XDG application */ + m_launcher->m_rid = m_launcher->launch(m_id); + if (m_launcher->m_rid < 0) { + AGL_FATAL("cannot launch XDG app (%s)", m_id); + } + + // take care 1st time launch + AGL_DEBUG("waiting for notification: surafce created"); + m_pending_create = true; + + // in case, target app has already run + if (m_launcher->m_rid) { + pid_t surf_pid = m_launcher->find_surfpid_by_rid(m_launcher->m_rid); + if (surf_pid > 0) { + AGL_DEBUG("match: surf:pid=%d, afm:rid=%d", surf_pid, + m_launcher->m_rid); + auto itr = m_surfaces.find(surf_pid); + if (itr != m_surfaces.end()) { + int id = itr->second; + AGL_DEBUG("surface %d for <%s> already exists", id, + m_role.c_str()); + setup_surface(id); + } + } + } + m_launcher->loop(e_flag); +} + +int main (int argc, const char* argv[]) +{ + // Set debug flags + // setenv("USE_HMI_DEBUG", "5", 1); + // setenv("WAYLAND_DEBUG", "1", 1); + + // Parse args + int port; + const char *token; + + if (argc < 3) { + AGL_FATAL("Missing port and token"); + } + + // Get app id + const char *afm_id = getenv("AFM_ID"); + if (afm_id == NULL || !afm_id[0]) { + afm_id = argv[0]; + } + + try { + port = std::stol(argv[1]); + token = argv[2]; + } catch (const std::invalid_argument& e) { + AGL_FATAL("Invalid argument"); + } catch (const std::out_of_range& e) { + AGL_FATAL("Out of range"); + } + + RunXDG runxdg(port, token, afm_id); + + runxdg.start(); + + return 0; +} |