4 * Copyright (c) 2012 - 2016 Samsung Electronics Co., Ltd. All rights reserved.
6 * Licensed under the Apache License, Version 2.0 (the License);
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an AS IS BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
23 #include <sys/types.h>
24 #include <sys/socket.h>
25 #include <sys/eventfd.h>
29 #include "pims-internal.h"
30 #include "pims-ipc-data-internal.h"
31 #include "pims-ipc-data.h"
32 #include "pims-socket.h"
33 #include "pims-ipc-utils.h"
34 #include "pims-ipc-worker.h"
36 #define PIMS_IPC_WORKER_THREAD_WAIT_TIME 100 /* milliseconds */
39 pims_ipc_svc_client_disconnected_cb callback;
41 } pims_ipc_svc_client_disconnected_cb_t;
43 /* idle_worker_pool SHOULD handle on main thread */
44 static GList *idle_worker_pool;
45 static GHashTable *worker_cb_table; /* call_id, cb_data */
46 static __thread pims_ipc_svc_client_disconnected_cb_t _client_disconnected_cb = {NULL, NULL};
48 static int unique_sequence_number;
49 static GHashTable *worker_client_info_map; /* key : worker_id, data : pims_ipc_client_info_s* */
51 int worker_wait_idle_worker_ready(pims_ipc_worker_data_s *worker_data)
53 struct timespec timeout = {0};
55 clock_gettime(CLOCK_REALTIME, &timeout);
56 timeout.tv_nsec += PIMS_IPC_WORKER_THREAD_WAIT_TIME * 1000000;
57 timeout.tv_sec += timeout.tv_nsec / 1000000000L;
58 timeout.tv_nsec = timeout.tv_nsec % 1000000000L;
60 pthread_mutex_lock(&worker_data->ready_mutex);
62 if (!worker_data->fd) {
63 WARN("worker fd is null, wait until worker thread create done.");
64 if (pthread_cond_timedwait(&worker_data->ready, &worker_data->ready_mutex, &timeout)) {
65 ERR("Get idle worker timeout Fail!");
66 pthread_mutex_unlock(&worker_data->ready_mutex);
71 pthread_mutex_unlock(&worker_data->ready_mutex);
75 pims_ipc_worker_data_s* worker_get_idle_worker(pims_ipc_svc_s *ipc_svc,
76 const char *client_id)
78 pims_ipc_worker_data_s *worker_data;
80 RETV_IF(NULL == client_id, NULL);
81 RETVM_IF(NULL == idle_worker_pool, NULL, "There is no idle worker");
83 worker_data = g_hash_table_lookup(ipc_svc->client_worker_map, client_id);
87 worker_data = idle_worker_pool->data;
89 idle_worker_pool = g_list_delete_link(idle_worker_pool, idle_worker_pool);
92 g_hash_table_insert(ipc_svc->client_worker_map, g_strdup(client_id), worker_data);
97 pims_ipc_worker_data_s* worker_find(pims_ipc_svc_s *ipc_svc, const char *client_id)
99 pims_ipc_worker_data_s *worker_data;
101 RETV_IF(NULL == client_id, NULL);
103 if (FALSE == g_hash_table_lookup_extended(ipc_svc->client_worker_map, client_id,
104 NULL, (gpointer*)&worker_data)) {
105 ERR("g_hash_table_lookup_extended(%s) Fail", client_id);
112 void worker_stop_client_worker(pims_ipc_svc_s *ipc_svc, const char *client_id)
114 pims_ipc_worker_data_s *worker_data;
116 worker_data = worker_find(ipc_svc, client_id);
118 /* remove client_fd */
119 g_hash_table_remove(ipc_svc->client_worker_map, client_id);
121 /* stop worker thread */
123 worker_data->stop_thread = TRUE;
124 worker_data->client_fd = -1;
125 write_command(worker_data->fd, 1);
126 DBG("write command to worker terminate(worker_fd:%d)", worker_data->fd);
131 void worker_free_raw_data(void *data)
133 pims_ipc_raw_data_s *raw_data = data;
135 if (NULL == raw_data)
138 free(raw_data->client_id);
139 free(raw_data->call_id);
140 free(raw_data->data);
144 void worker_free_data(gpointer data)
146 pims_ipc_worker_data_s *worker_data = data;
148 pthread_mutex_lock(&worker_data->queue_mutex);
149 if (worker_data->list)
150 g_list_free_full(worker_data->list, worker_free_raw_data);
151 pthread_mutex_unlock(&worker_data->queue_mutex);
153 pthread_cond_destroy(&worker_data->ready);
154 pthread_mutex_destroy(&worker_data->ready_mutex);
160 int worker_push_raw_data(pims_ipc_worker_data_s *worker_data, int client_fd,
161 pims_ipc_raw_data_s *data)
163 pthread_mutex_lock(&worker_data->queue_mutex);
164 worker_data->list = g_list_append(worker_data->list, data);
165 worker_data->client_fd = client_fd;
166 pthread_mutex_unlock(&worker_data->queue_mutex);
171 static gboolean worker_pop_raw_data(pims_ipc_worker_data_s *worker,
172 pims_ipc_raw_data_s **data)
177 pthread_mutex_lock(&worker->queue_mutex);
179 pthread_mutex_unlock(&worker->queue_mutex);
184 *data = g_list_first(worker->list)->data;
185 worker->list = g_list_delete_link(worker->list, g_list_first(worker->list));
186 pthread_mutex_unlock(&worker->queue_mutex);
191 int worker_set_callback(char *call_id, pims_ipc_svc_cb_s *cb_data)
193 return g_hash_table_insert(worker_cb_table, call_id, cb_data);
197 static void __run_callback(int client_pid, char *call_id, pims_ipc_data_h dhandle_in,
198 pims_ipc_data_h *dhandle_out)
200 pims_ipc_svc_cb_s *cb_data = NULL;
202 VERBOSE("Call id [%s]", call_id);
204 cb_data = g_hash_table_lookup(worker_cb_table, call_id);
205 if (cb_data == NULL) {
206 VERBOSE("No Data for %s", call_id);
210 /* TODO: client_pid is not valide pims_ipc_h */
211 cb_data->callback((pims_ipc_h)client_pid, dhandle_in, dhandle_out, cb_data->user_data);
214 static void __make_raw_data(const char *call_id, int seq_no, pims_ipc_data_h data,
215 pims_ipc_raw_data_s **out)
217 pims_ipc_data_s *data_in = data;
218 pims_ipc_raw_data_s *raw_data = NULL;
221 RET_IF(NULL == call_id);
223 raw_data = calloc(1, sizeof(pims_ipc_raw_data_s));
224 if (NULL == raw_data) {
225 ERR("calloc() Fail(%d)", errno);
229 raw_data->call_id = g_strdup(call_id);
230 raw_data->call_id_len = strlen(raw_data->call_id);
231 raw_data->seq_no = seq_no;
233 if (data_in && 0 < data_in->buf_size) {
234 raw_data->has_data = TRUE;
235 raw_data->data = calloc(1, data_in->buf_size+1);
236 if (NULL == raw_data->data) {
237 ERR("calloc() Fail");
238 free(raw_data->call_id);
242 memcpy(raw_data->data, data_in->buf, data_in->buf_size);
243 raw_data->data_len = data_in->buf_size;
245 raw_data->has_data = FALSE;
246 raw_data->data_len = 0;
247 raw_data->data = NULL;
253 static int __send_raw_data(int fd, const char *client_id, pims_ipc_raw_data_s *data)
256 unsigned int len, total_len, client_id_len;
258 RETV_IF(NULL == data, -1);
259 RETV_IF(NULL == client_id, -1);
261 client_id_len = strlen(client_id);
263 len = sizeof(total_len) + sizeof(client_id_len) + client_id_len + sizeof(data->seq_no)
264 + data->call_id_len + sizeof(data->call_id) + sizeof(data->has_data);
267 if (data->has_data) {
268 len += sizeof(data->data_len);
269 total_len = len + data->data_len;
272 INFO("client_id: %s, call_id : %s, seq no :%d, len:%d, total len :%d", client_id,
273 data->call_id, data->seq_no, len, total_len);
277 memset(buf, 0x0, len+1);
279 memcpy(buf, &total_len, sizeof(total_len));
280 length += sizeof(total_len);
282 memcpy(buf+length, &client_id_len, sizeof(client_id_len));
283 length += sizeof(client_id_len);
284 memcpy(buf+length, client_id, client_id_len);
285 length += client_id_len;
287 memcpy(buf+length, &(data->seq_no), sizeof(data->seq_no));
288 length += sizeof(data->seq_no);
290 memcpy(buf+length, &(data->call_id_len), sizeof(data->call_id_len));
291 length += sizeof(data->call_id_len);
292 memcpy(buf+length, data->call_id, data->call_id_len);
293 length += data->call_id_len;
295 memcpy(buf+length, &(data->has_data), sizeof(data->has_data));
296 length += sizeof(data->has_data);
298 if (data->has_data) {
299 memcpy(buf+length, &(data->data_len), sizeof(data->data_len));
300 length += sizeof(data->data_len);
301 ret = socket_send(fd, buf, length);
305 ret += socket_send_data(fd, data->data, data->data_len);
307 ret = socket_send(fd, buf, length);
313 static int _get_pid_from_fd(int fd)
316 socklen_t uc_len = sizeof(uc);
318 if (getsockopt(fd, SOL_SOCKET, SO_PEERCRED, &uc, &uc_len) < 0)
319 ERR("getsockopt() Failed(%d)", errno);
321 DBG("Client PID(%d)", uc.pid);
325 static int __worker_loop_handle_raw_data(pims_ipc_worker_data_s *worker_data)
327 int disconnected = FALSE;
328 pims_ipc_data_h data_in = NULL;
329 pims_ipc_data_h data_out = NULL;
330 pims_ipc_raw_data_s *result = NULL;
331 pims_ipc_raw_data_s *raw_data = NULL;
333 if (FALSE == worker_pop_raw_data(worker_data, &raw_data))
336 int client_pid = _get_pid_from_fd(worker_data->client_fd);
338 if (UTILS_STR_EQUAL == strcmp(PIMS_IPC_CALL_ID_CREATE, raw_data->call_id)) {
339 client_register_info(worker_data->client_fd, client_pid);
341 } else if (UTILS_STR_EQUAL == strcmp(PIMS_IPC_CALL_ID_DESTROY, raw_data->call_id)) {
344 data_in = pims_ipc_data_steal_unmarshal(raw_data->data, raw_data->data_len);
346 __run_callback(client_pid, raw_data->call_id, data_in, &data_out);
347 pims_ipc_data_destroy(data_in);
351 __make_raw_data(raw_data->call_id, raw_data->seq_no, data_out, &result);
352 pims_ipc_data_destroy(data_out);
354 __make_raw_data(raw_data->call_id, raw_data->seq_no, NULL, &result);
356 if (worker_data->client_fd != -1)
357 __send_raw_data(worker_data->client_fd, raw_data->client_id, result);
358 worker_free_raw_data(raw_data);
359 worker_free_raw_data(result);
364 static void* __worker_loop(void *data)
369 int disconnected = FALSE;
370 pims_ipc_worker_data_s *worker_data = data;
372 RETV_IF(NULL == data, NULL);
374 worker_fd = eventfd(0, 0);
378 INFO("worker Created ********** worker_fd = %d ***********", worker_fd);
380 pid = pthread_self();
381 worker_data->client_fd = -1;
382 worker_data->stop_thread = FALSE;
383 pthread_mutex_lock(&worker_data->ready_mutex);
384 worker_data->fd = worker_fd;
385 pthread_cond_signal(&worker_data->ready);
386 pthread_mutex_unlock(&worker_data->ready_mutex);
388 struct pollfd pollfds[1];
389 pollfds[0].fd = worker_fd;
390 pollfds[0].events = POLLIN;
392 while (!worker_data->stop_thread) {
393 ret = poll(pollfds, 1, 3000); /* waiting command from router */
396 ERR("poll() Fail(%d)", errno);
399 if (worker_data->stop_thread)
405 if (pollfds[0].revents & POLLIN) {
407 read_command(pollfds[0].fd, &dummy);
409 disconnected = __worker_loop_handle_raw_data(worker_data);
414 ERR("client fd closed, worker_fd : %d", worker_fd);
415 INFO("task thread terminated --------------------------- (worker_fd : %d)", worker_fd);
417 int client_pid = _get_pid_from_fd(worker_data->client_fd);
419 worker_free_data(worker_data);
422 /* pthread_mutex_lock(&worker_data->client_mutex); */
423 g_hash_table_remove(worker_client_info_map, GINT_TO_POINTER(client_pid));
424 DBG("----------------removed(%d)", client_pid);
425 /* pthread_mutex_unlock(&worker_data->client_mutex); */
427 if (_client_disconnected_cb.callback)
428 _client_disconnected_cb.callback((pims_ipc_h)pid, _client_disconnected_cb.user_data);
433 void worker_start_idle_worker(pims_ipc_svc_s *ipc_data)
436 pims_ipc_worker_data_s *worker_data;
438 for (i = g_list_length(idle_worker_pool); i < ipc_data->workers_max_count; i++) {
439 worker_data = calloc(1, sizeof(pims_ipc_worker_data_s));
440 if (NULL == worker_data) {
441 ERR("calloc() Fail(%d)", errno);
444 pthread_mutex_init(&worker_data->queue_mutex, 0);
445 pthread_mutex_init(&worker_data->ready_mutex, NULL);
446 pthread_cond_init(&worker_data->ready, NULL);
447 /* pthread_mutex_init(&worker_data->client_mutex, 0); */
449 utils_launch_thread(__worker_loop, worker_data);
450 idle_worker_pool = g_list_append(idle_worker_pool, worker_data);
454 void worker_stop_idle_worker()
457 pims_ipc_worker_data_s *worker_data;
459 cursor = idle_worker_pool;
461 worker_data = cursor->data;
462 worker_data->stop_thread = TRUE;
463 write_command(worker_data->fd, 1);
464 cursor = cursor->next;
470 worker_cb_table = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, g_free);
471 WARN_IF(NULL == worker_cb_table, "worker cb table is NULL");
476 g_list_free(idle_worker_pool);
477 idle_worker_pool = NULL;
479 g_hash_table_destroy(worker_cb_table);
480 worker_cb_table = NULL;
483 API void pims_ipc_svc_set_client_disconnected_cb(
484 pims_ipc_svc_client_disconnected_cb callback, void *user_data)
486 if (_client_disconnected_cb.callback) {
487 ERR("already registered");
490 _client_disconnected_cb.callback = callback;
491 _client_disconnected_cb.user_data = user_data;
494 void client_destroy_info(gpointer p)
496 pims_ipc_client_info_s *client_info = p;
498 if (NULL == client_info)
500 free(client_info->smack);
501 free(client_info->uid);
502 free(client_info->client_session);
506 void client_init(void)
508 unique_sequence_number = 0;
509 worker_client_info_map = g_hash_table_new_full(g_direct_hash, g_direct_equal, NULL,
510 client_destroy_info);
513 void client_deinit(void)
515 DBG("----------destroied");
516 g_hash_table_destroy(worker_client_info_map);
519 static int _create_client_info(int fd, pims_ipc_client_info_s **p_client_info)
523 char errmsg[1024] = {0};
525 pims_ipc_client_info_s *client_info = calloc(1, sizeof(pims_ipc_client_info_s));
526 if (NULL == client_info) {
527 ERR("calloc() return NULL");
531 ret = cynara_creds_socket_get_client(fd, CLIENT_METHOD_SMACK, &(client_info->smack));
532 if (CYNARA_API_SUCCESS != ret) {
533 cynara_strerror(ret, errmsg, sizeof(errmsg));
534 ERR("cynara_creds_socket_get_client() Fail(%d,%s)", ret, errmsg);
535 client_destroy_info(client_info);
539 ret = cynara_creds_socket_get_user(fd, USER_METHOD_UID, &(client_info->uid));
540 if (CYNARA_API_SUCCESS != ret) {
541 cynara_strerror(ret, errmsg, sizeof(errmsg));
542 ERR("cynara_creds_socket_get_user() Fail(%d,%s)", ret, errmsg);
543 client_destroy_info(client_info);
547 ret = cynara_creds_socket_get_pid(fd, &pid);
548 if (CYNARA_API_SUCCESS != ret) {
549 cynara_strerror(ret, errmsg, sizeof(errmsg));
550 ERR("cynara_creds_socket_get_pid() Fail(%d,%s)", ret, errmsg);
551 client_destroy_info(client_info);
555 client_info->client_session = cynara_session_from_pid(pid);
556 if (NULL == client_info->client_session) {
557 ERR("cynara_session_from_pid() return NULL");
558 client_destroy_info(client_info);
561 *p_client_info = client_info;
566 int client_register_info(int client_fd, int client_pid)
568 pims_ipc_client_info_s *client_info = NULL;
571 ret = _create_client_info(client_fd, &client_info);
573 ERR("_create_client_info() Fail(%d)", ret);
576 g_hash_table_insert(worker_client_info_map, GINT_TO_POINTER(client_pid), client_info);
577 DBG("-------inserted:pid(%d), info(%p)", client_pid, client_info);
582 int client_get_unique_sequence_number(void)
584 return unique_sequence_number++;
587 pims_ipc_client_info_s* client_clone_info(pims_ipc_client_info_s *client_info)
589 if (NULL == client_info) {
590 ERR("client_info is NULL");
594 pims_ipc_client_info_s *clone = calloc(1, sizeof(pims_ipc_client_info_s));
596 ERR("calloc() Fail");
600 if (client_info->smack) {
601 clone->smack = strdup(client_info->smack);
602 if (NULL == clone->smack) {
603 ERR("strdup() Fail");
604 client_destroy_info(clone);
609 if (client_info->uid) {
610 clone->uid = strdup(client_info->uid);
611 if (NULL == clone->uid) {
612 ERR("strdup() Fail");
613 client_destroy_info(clone);
618 if (client_info->client_session) {
619 clone->client_session = strdup(client_info->client_session);
620 if (NULL == clone->client_session) {
621 ERR("strdup() Fail");
622 client_destroy_info(clone);
630 pims_ipc_client_info_s* client_get_info(int client_pid)
632 pims_ipc_client_info_s *client_info = NULL;
634 client_info = g_hash_table_lookup(worker_client_info_map, GINT_TO_POINTER(client_pid));
635 DBG("---------------get client_pid(%d)", client_pid);