4 * Copyright (c) 2017 Samsung Electronics Co., Ltd. All rights reserved.
6 * Contact: Sangchul Lee <sc11.lee@samsung.com>
8 * Licensed under the Apache License, Version 2.0 (the "License");
9 * you may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
12 * http://www.apache.org/licenses/LICENSE-2.0
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
35 #include "include/mm_sound_focus_private.h"
37 focus_sound_info_t g_focus_sound_handle[FOCUS_HANDLE_MAX];
39 static void unlink_if_symbolic_link(const char *path)
42 char *resolved_path = NULL;
47 /* return if it does not exist */
48 if ((ret = access(path, F_OK)))
51 if ((resolved_path = realpath(path, NULL))) {
52 /* assume that the path paramether is an absolute path */
53 if (strcmp(path, resolved_path)) {
54 debug_warning("unexpected symbolic link!, unlink the symbolic link(%s) to the resolved path(%s)", path, resolved_path);
60 strerror_r(errno, str_error, sizeof(str_error));
61 debug_warning("failed to realpath() for path:%s, err:%s", path, str_error);
65 static gpointer _focus_thread_func(gpointer data)
67 unsigned int thread_id = (unsigned int)pthread_self();
68 GMainLoop *focus_loop = (GMainLoop*)data;
70 debug_warning(">>> thread id(%u), mainloop[%p]", thread_id, focus_loop);
72 g_main_loop_run(focus_loop);
73 debug_warning("<<< quit : thread id(%u), mainloop[%p]", thread_id, focus_loop);
78 static gboolean _focus_fd_prepare(GSource *source, gint *timeout)
81 debug_warning("[ PREPARE : %p, (%p, %d)", source, timeout, timeout ? *timeout : -1);
86 static gboolean _focus_fd_check(GSource * source)
88 FocusSource* fsource = (FocusSource *)source;
91 debug_error("GSource is null");
95 debug_warning("CHECK : %p, 0x%x ]", source, fsource->pollfd.revents);
97 if (fsource->poll_fd.revents & (POLLIN | POLLPRI))
103 static gboolean _focus_fd_dispatch(GSource *source, GSourceFunc callback, gpointer user_data)
105 debug_warning("*** DISPATCH : %p, (%p, %p)", source, callback, user_data);
106 return callback(user_data);
109 static void _focus_fd_finalize(GSource *source)
111 debug_warning("### FINALIZE : %p", source);
114 static gboolean _focus_callback_handler(gpointer user_data)
116 focus_sound_info_t *focus_handle = (focus_sound_info_t *)user_data;
120 focus_cb_data_lib cb_data;
122 debug_log(">>> thread id(%u)", (unsigned int)pthread_self());
125 debug_error("focus_handle is null");
126 return G_SOURCE_CONTINUE;
128 poll_fd = &focus_handle->fsrc->poll_fd;
129 debug_log("focus_handle(%p), poll_fd(%p)", focus_handle, poll_fd);
131 memset(&cb_data, 0, sizeof(focus_cb_data_lib));
133 if (poll_fd->revents & (POLLIN | POLLPRI)) {
134 int changed_state = -1;
136 count = read(poll_fd->fd, &cb_data, sizeof(cb_data));
139 strerror_r(errno, str_error, sizeof(str_error));
140 debug_error("GpollFD read fail, errno=%d(%s)", errno, str_error);
141 return G_SOURCE_CONTINUE;
143 changed_state = cb_data.state;
145 g_mutex_lock(&focus_handle->focus_lock);
147 tid = focus_handle->focus_pid;
149 if (changed_state != -1) {
150 debug_msg("Got and start CB : TID(%d), handle(%d), type(%d), state(%d,(DEACTIVATED(0)/ACTIVATED(1)), trigger(%s)",
151 tid, cb_data.handle, cb_data.type, cb_data.state, cb_data.stream_type);
152 if (focus_handle->focus_callback == NULL) {
153 debug_error("focus callback is null..");
154 g_mutex_unlock(&focus_handle->focus_lock);
155 return G_SOURCE_CONTINUE;
157 debug_msg("[CALLBACK(%p) START]", focus_handle->focus_callback);
158 (focus_handle->focus_callback)(cb_data.handle, cb_data.type, cb_data.state, cb_data.stream_type,
159 cb_data.option, cb_data.ext_info, focus_handle->user_data);
160 debug_msg("[CALLBACK END]");
165 unsigned int buf = 0;
166 char *filename2 = g_strdup_printf("/tmp/FOCUS.%d.%dr", focus_handle->focus_pid, cb_data.handle);
168 unlink_if_symbolic_link(filename2);
169 tmpfd = open(filename2, O_WRONLY | O_NONBLOCK);
172 strerror_r(errno, str_error, sizeof(str_error));
173 debug_warning("[RETCB][Failed(May Server Close First)]tid(%d) fd(%d) %s errno=%d(%s)",
174 tid, tmpfd, filename2, errno, str_error);
176 g_mutex_unlock(&focus_handle->focus_lock);
177 return G_SOURCE_CONTINUE;
179 /* buf contains data as below,
180 * |<--12bits--><--4bits (reacquisition)--><--16bits (handle)-->| */
181 buf = (unsigned int)((0x0000ffff & cb_data.handle) | (focus_handle->auto_reacquire << 16));
182 rett = write(tmpfd, &buf, sizeof(buf));
185 debug_msg("[RETCB] tid(%d) finishing CB (write=%d)", tid, rett);
189 g_mutex_unlock(&focus_handle->focus_lock);
193 return G_SOURCE_CONTINUE;
196 static gboolean _focus_watch_callback_handler(gpointer user_data)
198 focus_sound_info_t *focus_handle = (focus_sound_info_t *)user_data;
202 focus_cb_data_lib cb_data;
204 debug_log(">>> thread id(%u)", (unsigned int)pthread_self());
207 debug_error("focus_handle is null");
208 return G_SOURCE_CONTINUE;
210 poll_fd = &focus_handle->fsrc->poll_fd;
211 debug_log("focus_handle(%p), poll_fd(%p)", focus_handle, poll_fd);
213 memset(&cb_data, 0, sizeof(focus_cb_data_lib));
215 if (poll_fd->revents & (POLLIN | POLLPRI)) {
216 count = read(poll_fd->fd, &cb_data, sizeof(cb_data));
219 strerror_r(errno, str_error, sizeof(str_error));
220 debug_error("GpollFD read fail, errno=%d(%s)", errno, str_error);
221 return G_SOURCE_CONTINUE;
224 if (!focus_handle->is_used) {
225 debug_warning("unsetting watch calllback has been already requested");
226 goto SKIP_CB_AND_RET;
229 g_mutex_lock(&focus_handle->focus_lock);
231 tid = focus_handle->focus_pid;
233 debug_msg("Got and start CB : TID(%d), handle(%d), type(%d), state(%d,(DEACTIVATED(0)/ACTIVATED(1)), trigger(%s)",
234 tid, cb_data.handle, cb_data.type, cb_data.state, cb_data.stream_type);
236 if (focus_handle->watch_callback == NULL) {
237 debug_warning("watch callback is null..");
238 goto SKIP_CB_AND_RET;
240 if (focus_handle->unset_watch_callback_requested == true) {
241 debug_warning("unset_watch_callback_requested..");
242 goto SKIP_CB_AND_RET;
245 debug_msg("[CALLBACK(%p) START]", focus_handle->watch_callback);
246 (focus_handle->watch_callback)(cb_data.handle, cb_data.type, cb_data.state, cb_data.stream_type,
247 cb_data.ext_info, focus_handle->user_data);
248 debug_msg("[CALLBACK END]");
255 char *filename2 = g_strdup_printf("/tmp/FOCUS.%d.%d.wchr", focus_handle->focus_pid, cb_data.handle);
257 unlink_if_symbolic_link(filename2);
258 tmpfd = open(filename2, O_WRONLY | O_NONBLOCK);
261 strerror_r(errno, str_error, sizeof(str_error));
262 debug_warning("[RETCB][Failed(May Server Close First)]tid(%d) fd(%d) %s errno=%d(%s)",
263 tid, tmpfd, filename2, errno, str_error);
265 g_mutex_unlock(&focus_handle->focus_lock);
266 return G_SOURCE_CONTINUE;
268 buf = cb_data.handle;
269 rett = write(tmpfd, &buf, sizeof(buf));
272 debug_msg("[RETCB] tid(%d) finishing CB (write=%d)", tid, rett);
276 if (focus_handle->is_used) {
277 debug_msg("unlock focus_lock = %p", &focus_handle->focus_lock);
278 g_mutex_unlock(&focus_handle->focus_lock);
283 return G_SOURCE_CONTINUE;
286 #define INTERVAL_MS 20
287 static int _focus_loop_is_running_timed_wait(GMainLoop *focus_loop, int timeout_ms)
289 int reduced_time_ms = timeout_ms;
290 if (!focus_loop || timeout_ms < 0) {
291 debug_error("invalid argument, focus_loop(%p), timeout_ms(%d)", focus_loop, timeout_ms);
292 return MM_ERROR_INVALID_ARGUMENT;
296 if (g_main_loop_is_running(focus_loop))
297 return MM_ERROR_NONE;
299 usleep(INTERVAL_MS * 1000);
300 if (reduced_time_ms < timeout_ms)
301 debug_warning("reduced_time_ms(%d)", reduced_time_ms);
302 } while ((reduced_time_ms -= INTERVAL_MS) >= 0);
304 debug_error("focus_loop is not running for timeout_ms(%d), focus_loop(%p) ", timeout_ms, focus_loop);
306 return MM_ERROR_SOUND_INTERNAL;
309 static void _focus_open_callback(int index, bool is_for_watching)
316 if (index < 0 || index >= FOCUS_HANDLE_MAX) {
317 debug_error("Invalid focus handle index [%d]", index);
321 if (is_for_watching) {
322 filename = g_strdup_printf("/tmp/FOCUS.%d.%d.wch",
323 g_focus_sound_handle[index].focus_pid,
324 g_focus_sound_handle[index].handle);
326 filename = g_strdup_printf("/tmp/FOCUS.%d.%d",
327 g_focus_sound_handle[index].focus_pid,
328 g_focus_sound_handle[index].handle);
330 unlink_if_symbolic_link(filename);
332 if (mknod(filename, S_IFIFO|0666, 0))
333 debug_error("mknod() failure, errno(%d)", errno);
335 g_focus_sound_handle[index].focus_fd = open(filename, O_RDWR|O_NONBLOCK);
336 if (g_focus_sound_handle[index].focus_fd == -1) {
337 debug_error("Open fail : index(%d), file open error(%d)", index, errno);
339 debug_log("Open success : index(%d), filename(%s), fd(%d)",
340 index, filename, g_focus_sound_handle[index].focus_fd);
345 if (is_for_watching) {
346 filename = g_strdup_printf("/tmp/FOCUS.%d.%d.wchr",
347 g_focus_sound_handle[index].focus_pid,
348 g_focus_sound_handle[index].handle);
350 filename = g_strdup_printf("/tmp/FOCUS.%d.%dr",
351 g_focus_sound_handle[index].focus_pid,
352 g_focus_sound_handle[index].handle);
355 if (mknod(filename, S_IFIFO | 0666, 0))
356 debug_error("mknod() failure, errno(%d)", errno);
364 void _focus_close_callback(int index, bool is_for_watching)
366 char *filename = NULL;
370 if (index < 0 || index >= FOCUS_HANDLE_MAX) {
371 debug_error("Invalid focus handle index [%d]", index);
375 if (g_focus_sound_handle[index].focus_fd < 0) {
376 debug_error("Close fail : index(%d)", index);
378 close(g_focus_sound_handle[index].focus_fd);
379 debug_log("Close Success : index(%d)", index);
382 if (is_for_watching) {
383 filename = g_strdup_printf("/tmp/FOCUS.%d.%d.wch",
384 g_focus_sound_handle[index].focus_pid,
385 g_focus_sound_handle[index].handle);
387 filename = g_strdup_printf("/tmp/FOCUS.%d.%d",
388 g_focus_sound_handle[index].focus_pid,
389 g_focus_sound_handle[index].handle);
391 if (remove(filename)) {
392 debug_warning("remove(%s) failure (focus_server probably removed it in advance), errno(%d)",
398 if (is_for_watching) {
399 filename = g_strdup_printf("/tmp/FOCUS.%d.%d.wchr",
400 g_focus_sound_handle[index].focus_pid,
401 g_focus_sound_handle[index].handle);
403 filename = g_strdup_printf("/tmp/FOCUS.%d.%dr",
404 g_focus_sound_handle[index].focus_pid,
405 g_focus_sound_handle[index].handle);
407 if (remove(filename)) {
408 debug_warning("remove(%s) failure (focus_server probably removed it in advance), errno(%d)",
417 static GSourceFuncs event_funcs = {
418 .prepare = _focus_fd_prepare,
419 .check = _focus_fd_check,
420 .dispatch = _focus_fd_dispatch,
421 .finalize = _focus_fd_finalize,
424 static bool _focus_add_sound_callback(int index, focus_callback_handler_t focus_cb_handler)
426 FocusSource *fsrc = NULL;
432 g_mutex_init(&g_focus_sound_handle[index].focus_lock);
434 src = g_source_new(&event_funcs, sizeof(FocusSource));
436 debug_error("failed to g_source_new for focus source");
440 fsrc = (FocusSource*) src;
442 fsrc->poll_fd.fd = g_focus_sound_handle[index].focus_fd;
443 fsrc->poll_fd.events = (gushort)(POLLIN | POLLPRI);
444 g_source_add_poll(src, &fsrc->poll_fd);
446 g_source_set_callback(src, focus_cb_handler, (gpointer)&g_focus_sound_handle[index], NULL);
448 debug_warning("fsrc(%p), src_funcs(%p), pollfd(%p), fd(%d)",
449 fsrc, &event_funcs, &fsrc->poll_fd, fsrc->poll_fd.fd);
451 fsrc_id = g_source_attach(src, g_main_loop_get_context(g_focus_sound_handle[index].focus_loop));
453 debug_error("failed to attach the source to context");
458 g_focus_sound_handle[index].fsrc = fsrc;
470 static bool _focus_remove_sound_callback(int index)
472 focus_sound_info_t *h = NULL;
476 if (index < 0 || index >= FOCUS_HANDLE_MAX) {
477 debug_error("Invalid focus handle index [%d]", index);
481 h = &g_focus_sound_handle[index];
483 g_source_destroy((GSource *)h->fsrc);
487 h->focus_callback = NULL;
488 h->watch_callback = NULL;
490 g_mutex_clear(&h->focus_lock);
497 static void _focus_add_callback(int index, bool is_for_watching)
501 if (index < 0 || index >= FOCUS_HANDLE_MAX) {
502 debug_error("Invalid focus handle index [%d]", index);
506 if (!is_for_watching) {
507 if (!_focus_add_sound_callback(index, _focus_callback_handler))
508 debug_error("failed to _focus_add_sound_callback(%p)", _focus_callback_handler);
510 if (!_focus_add_sound_callback(index, _focus_watch_callback_handler))
511 debug_error("failed to _focus_add_sound_callback(%p)", _focus_watch_callback_handler);
516 static void _focus_remove_callback(int index)
519 if (!_focus_remove_sound_callback(index))
520 debug_error("failed to __focus_remove_sound_callback()");
524 int focus_find_empty_index(int *index)
531 for (i = 0; i < FOCUS_HANDLE_MAX; i++) {
532 if (g_focus_sound_handle[i].is_used == false) {
533 g_focus_sound_handle[i].is_used = true;
534 debug_log("use index[%d]", i);
538 if (i == FOCUS_HANDLE_MAX) {
539 debug_error("could not find empty slot, it is full");
548 int focus_find_index_by_handle(int handle)
551 for (i = 0; i < FOCUS_HANDLE_MAX; i++) {
552 if (g_focus_sound_handle[i].focus_callback && handle == g_focus_sound_handle[i].handle) {
553 /* debug_msg("found index(%d) for handle(%d)", i, handle);*/
554 return (handle == FOCUS_HANDLE_INIT_VAL) ? -1 : i;
560 int focus_watch_find_index_by_handle(int handle)
563 for (i = 0; i < FOCUS_HANDLE_MAX; i++) {
564 if (g_focus_sound_handle[i].watch_callback && handle == g_focus_sound_handle[i].handle) {
565 /* debug_msg("found index(%d) for watch handle(%d)", i, handle);*/
566 return (handle == FOCUS_HANDLE_INIT_VAL) ? -1 : i;
572 #define LOOP_RUNNING_WAIT_TIME_MS 2500
573 int focus_init_context(int index)
575 int ret = MM_ERROR_NONE;
576 GMainContext *focus_context;
580 if (index < 0 || index >= FOCUS_HANDLE_MAX) {
581 debug_error("index(%d) is not valid", index);
582 return MM_ERROR_INVALID_ARGUMENT;
585 focus_context = g_main_context_new();
586 g_focus_sound_handle[index].focus_loop = g_main_loop_new(focus_context, FALSE);
587 g_main_context_unref(focus_context); /* FYI, this context resource will be released when calling g_main_loop_unref() */
588 if (g_focus_sound_handle[index].focus_loop == NULL) {
589 debug_error("could not create mainloop..");
593 g_focus_sound_handle[index].focus_cb_thread = g_thread_new("focus-cb-thread",
595 g_focus_sound_handle[index].focus_loop);
596 if (g_focus_sound_handle[index].focus_cb_thread == NULL) {
597 debug_error("could not create thread..");
601 debug_warning("focus cb thread[%p] with mainloop[%p] is created for index(%d)",
602 g_focus_sound_handle[index].focus_cb_thread, g_focus_sound_handle[index].focus_loop, index);
604 if ((ret = _focus_loop_is_running_timed_wait(g_focus_sound_handle[index].focus_loop, LOOP_RUNNING_WAIT_TIME_MS))) {
605 debug_error("failed to _focus_loop_is_running_timed_wait(), ret[0x%x]", ret);
611 return MM_ERROR_NONE;
614 if (g_focus_sound_handle[index].focus_loop) {
615 if (g_focus_sound_handle[index].focus_cb_thread) {
616 g_main_loop_quit(g_focus_sound_handle[index].focus_loop);
617 g_thread_join(g_focus_sound_handle[index].focus_cb_thread);
618 debug_warning("after thread join, thread[%p], mainloop[%p] for index(%d)",
619 g_focus_sound_handle[index].focus_cb_thread, g_focus_sound_handle[index].focus_loop, index);
620 g_focus_sound_handle[index].focus_cb_thread = NULL;
622 g_main_loop_unref(g_focus_sound_handle[index].focus_loop);
623 g_focus_sound_handle[index].focus_loop = NULL;
625 return MM_ERROR_SOUND_INTERNAL;
628 void focus_deinit_context(int index)
632 if (index < 0 || index >= FOCUS_HANDLE_MAX) {
633 debug_error("index(%d) is not valid", index);
637 if (!g_focus_sound_handle[index].focus_loop || !g_focus_sound_handle[index].focus_cb_thread) {
638 debug_error("focus_loop[%p] or focus_cb_thread[%p] is null",
639 g_focus_sound_handle[index].focus_loop, g_focus_sound_handle[index].focus_cb_thread);
643 g_main_loop_quit(g_focus_sound_handle[index].focus_loop);
644 g_thread_join(g_focus_sound_handle[index].focus_cb_thread);
645 debug_warning("after thread join, thread[%p], mainloop[%p] for index(%d)",
646 g_focus_sound_handle[index].focus_cb_thread, g_focus_sound_handle[index].focus_loop, index);
647 g_main_loop_unref(g_focus_sound_handle[index].focus_loop);
648 g_focus_sound_handle[index].focus_loop = NULL;
649 g_focus_sound_handle[index].focus_cb_thread = NULL;
654 void focus_init_callback(int index, bool is_for_watching)
657 _focus_open_callback(index, is_for_watching);
658 _focus_add_callback(index, is_for_watching);
662 void focus_deinit_callback(int index, bool is_for_watching)
665 _focus_remove_callback(index);
666 _focus_close_callback(index, is_for_watching);