client/ctsvc_client_service_helper.c

   1 /*
   2  * Contacts Service
   3  *
   4  * Copyright (c) 2010 - 2015 Samsung Electronics Co., Ltd. All rights reserved.
   5  *
   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
   9  *
  10  * http://www.apache.org/licenses/LICENSE-2.0
  11  *
  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.
  17  *
  18  */
  19 #include <errno.h>
  20 #include <sys/socket.h>
  21 #include <sys/un.h>
  22 #include <unistd.h>
  23
  24 #include "contacts.h"
  25 #include "ctsvc_internal.h"
  26 #include "ctsvc_socket.h"
  27 #include "ctsvc_mutex.h"
  28 #include "ctsvc_inotify.h"
  29 #include "ctsvc_client_ipc.h"
  30 #include "ctsvc_client_utils.h"
  31 #include "ctsvc_client_handle.h"
  32 #include "ctsvc_client_service_helper.h"
  33
  34 static int _ctsvc_connection = 0;
  35 static __thread int _ctsvc_connection_on_thread = 0;
  36
  37 int ctsvc_client_get_thread_connection_count()
  38 {
  39         return _ctsvc_connection_on_thread;
  40 }
  41
  42 int ctsvc_client_connect_with_flags(contacts_h contact, unsigned int flags)
  43 {
  44         CTS_FN_CALL;
  45         int ret = CONTACTS_ERROR_NONE;
  46
  47         /* If new flag is defined, errer check should be updated */
  48         RETVM_IF(flags & 0x11111110, CONTACTS_ERROR_INVALID_PARAMETER, "flags is invalid");
  49
  50         ret = ctsvc_client_connect(contact);
  51         if (ret == CONTACTS_ERROR_PERMISSION_DENIED)
  52                 return ret;
  53         else if (ret == CONTACTS_ERROR_NONE)
  54                 return ret;
  55
  56         if (flags & CONTACTS_CONNECT_FLAG_RETRY) {
  57                 int i;
  58                 int waiting_time = 500;
  59                 for (i = 0; i < 9; i++) {
  60                         usleep(waiting_time * 1000);
  61                         DBG("retry cnt=%d, ret=%x, %d", (i+1), ret, waiting_time);
  62                         ret = ctsvc_client_connect(contact);
  63                         if (ret == CONTACTS_ERROR_NONE)
  64                                 break;
  65                         if (6 < i)
  66                                 waiting_time += 30000;
  67                         else
  68                                 waiting_time *= 2;
  69                 }
  70         }
  71
  72         return ret;
  73 }
  74
  75 /* LCOV_EXCL_START */
  76 static void _ctsvc_ipc_initialized_cb(void *user_data)
  77 {
  78         CTS_FN_CALL;
  79         if (true == ctsvc_ipc_get_disconnected()) {
  80                 ctsvc_ipc_set_disconnected(false);
  81                 ctsvc_ipc_recovery();
  82                 ctsvc_ipc_recover_for_change_subscription();
  83         }
  84 }
  85 /* LCOV_EXCL_STOP */
  86
  87 int ctsvc_client_connect(contacts_h contact)
  88 {
  89         CTS_FN_CALL;
  90         int ret;
  91         ctsvc_base_s *base = (ctsvc_base_s*)contact;
  92         RETV_IF(NULL == base, CONTACTS_ERROR_INVALID_PARAMETER);
  93
  94         ctsvc_mutex_lock(CTS_MUTEX_CONNECTION);
  95         if (0 == base->connection_count) {
  96                 WARN("Contacts service connect(%d)", _ctsvc_connection );
  97                 ret = ctsvc_ipc_connect(contact, ctsvc_client_get_pid());
  98                 if (ret != CONTACTS_ERROR_NONE) {
  99                         /* LCOV_EXCL_START */
 100                         ERR("ctsvc_ipc_connect() Fail(%d)", ret);
 101                         ctsvc_mutex_unlock(CTS_MUTEX_CONNECTION);
 102                         return ret;
 103                         /* LCOV_EXCL_STOP */
 104                 }
 105         }
 106         base->connection_count++;
 107
 108         if (0 == _ctsvc_connection) {
 109                 ret = ctsvc_socket_init();
 110                 if (ret != CONTACTS_ERROR_NONE) {
 111                         /* LCOV_EXCL_START */
 112                         ERR("ctsvc_socket_init() Fail(%d)", ret);
 113                         ctsvc_mutex_unlock(CTS_MUTEX_CONNECTION);
 114                         return ret;
 115                         /* LCOV_EXCL_STOP */
 116                 }
 117
 118                 ret = ctsvc_inotify_init();
 119                 if (ret != CONTACTS_ERROR_NONE) {
 120                         /* LCOV_EXCL_START */
 121                         ERR("ctsvc_inotify_init() Fail(%d)", ret);
 122                         ctsvc_socket_final();
 123                         ctsvc_mutex_unlock(CTS_MUTEX_CONNECTION);
 124                         return ret;
 125                         /* LCOV_EXCL_STOP */
 126                 }
 127                 ctsvc_view_uri_init();
 128         } else {
 129                 DBG("Contacts service has been already connected(%d)", _ctsvc_connection + 1);
 130         }
 131
 132         if (1 == base->connection_count)
 133                 ctsvc_inotify_subscribe_ipc_ready(_ctsvc_ipc_initialized_cb, NULL);
 134
 135         _ctsvc_connection++;
 136         ctsvc_mutex_unlock(CTS_MUTEX_CONNECTION);
 137
 138         return CONTACTS_ERROR_NONE;
 139 }
 140
 141 int ctsvc_client_disconnect(contacts_h contact)
 142 {
 143         CTS_FN_CALL;
 144         int ret;
 145         ctsvc_base_s *base = (ctsvc_base_s*)contact;
 146         RETV_IF(NULL == base, CONTACTS_ERROR_INVALID_PARAMETER);
 147
 148         ctsvc_mutex_lock(CTS_MUTEX_CONNECTION);
 149
 150         if (1 == base->connection_count) {
 151                 ret = ctsvc_ipc_disconnect(contact, ctsvc_client_get_pid(), _ctsvc_connection);
 152                 if (ret != CONTACTS_ERROR_NONE) {
 153                         /* LCOV_EXCL_START */
 154                         ctsvc_mutex_unlock(CTS_MUTEX_CONNECTION);
 155                         ERR("ctsvc_ipc_disconnect() Fail(%d)", ret);
 156                         return ret;
 157                         /* LCOV_EXCL_STOP */
 158                 }
 159                 ctsvc_inotify_unsubscribe_ipc_ready();
 160         }
 161         base->connection_count--;
 162
 163         if (1 == _ctsvc_connection) {
 164                 ctsvc_ipc_destroy_for_change_subscription(true);
 165                 ctsvc_view_uri_deinit();
 166                 ctsvc_inotify_close();
 167                 ctsvc_socket_final();
 168
 169         } else if (1 < _ctsvc_connection) {
 170                 DBG("connection count is %d", _ctsvc_connection);
 171         } else {
 172                 /* LCOV_EXCL_START */
 173                 DBG("call contacts_connect(), connection count is %d", _ctsvc_connection);
 174                 ctsvc_mutex_unlock(CTS_MUTEX_CONNECTION);
 175                 return CONTACTS_ERROR_DB;
 176                 /* LCOV_EXCL_STOP */
 177         }
 178
 179         _ctsvc_connection--;
 180
 181         if (0 == base->connection_count) {
 182                 INFO("connection_count is 0. remove handle");
 183                 ret = ctsvc_client_handle_remove(ctsvc_client_get_pid(), contact);
 184                 WARN_IF(CONTACTS_ERROR_NONE != ret, "ctsvc_client_handle_remove() Fail(%d)", ret);
 185         }
 186         ctsvc_mutex_unlock(CTS_MUTEX_CONNECTION);
 187
 188         return CONTACTS_ERROR_NONE;
 189 }
 190
 191 int ctsvc_client_connect_on_thread(contacts_h contact)
 192 {
 193         int ret;
 194         ctsvc_base_s *base = (ctsvc_base_s*)contact;
 195         RETV_IF(NULL == base, CONTACTS_ERROR_INVALID_PARAMETER);
 196
 197         ctsvc_mutex_lock(CTS_MUTEX_CONNECTION);
 198
 199         if (0 == base->connection_count) {
 200                 ret = ctsvc_ipc_connect(contact, ctsvc_client_get_tid());
 201                 if (ret != CONTACTS_ERROR_NONE) {
 202                         /* LCOV_EXCL_START */
 203                         ERR("ctsvc_ipc_connect() Fail(%d)", ret);
 204                         ctsvc_mutex_unlock(CTS_MUTEX_CONNECTION);
 205                         return ret;
 206                         /* LCOV_EXCL_STOP */
 207                 }
 208         }
 209         base->connection_count++;
 210
 211         if (0 == _ctsvc_connection_on_thread) {
 212                 ret = ctsvc_socket_init();
 213                 if (ret != CONTACTS_ERROR_NONE) {
 214                         /* LCOV_EXCL_START */
 215                         ERR("ctsvc_socket_init() Fail(%d)", ret);
 216                         ctsvc_mutex_unlock(CTS_MUTEX_CONNECTION);
 217                         return ret;
 218                         /* LCOV_EXCL_STOP */
 219                 }
 220
 221                 ret = ctsvc_inotify_init();
 222                 if (ret != CONTACTS_ERROR_NONE) {
 223                         /* LCOV_EXCL_START */
 224                         ERR("ctsvc_inotify_init() Fail(%d)", ret);
 225                         ctsvc_socket_final();
 226                         ctsvc_mutex_unlock(CTS_MUTEX_CONNECTION);
 227                         return ret;
 228                         /* LCOV_EXCL_STOP */
 229                 }
 230                 ctsvc_view_uri_init();
 231         } else if (0 < _ctsvc_connection_on_thread) {
 232                 DBG("System : Contacts service has been already connected");
 233         }
 234
 235         if (1 == base->connection_count)
 236                 ctsvc_inotify_subscribe_ipc_ready(_ctsvc_ipc_initialized_cb, NULL);
 237
 238         _ctsvc_connection_on_thread++;
 239
 240         ctsvc_mutex_unlock(CTS_MUTEX_CONNECTION);
 241
 242         return CONTACTS_ERROR_NONE;
 243 }
 244
 245 int ctsvc_client_disconnect_on_thread(contacts_h contact)
 246 {
 247         int ret;
 248         ctsvc_base_s *base = (ctsvc_base_s*)contact;
 249         RETV_IF(NULL == base, CONTACTS_ERROR_INVALID_PARAMETER);
 250
 251         ctsvc_mutex_lock(CTS_MUTEX_CONNECTION);
 252
 253         if (1 == base->connection_count) {
 254                 ret = ctsvc_ipc_disconnect(contact, ctsvc_client_get_tid(),
 255                                 _ctsvc_connection_on_thread);
 256                 if (ret != CONTACTS_ERROR_NONE) {
 257                         /* LCOV_EXCL_START */
 258                         ERR("ctsvc_ipc_disconnect() Fail(%d)", ret);
 259                         ctsvc_mutex_unlock(CTS_MUTEX_CONNECTION);
 260                         return ret;
 261                         /* LCOV_EXCL_STOP */
 262                 }
 263                 ctsvc_inotify_unsubscribe_ipc_ready();
 264         }
 265         base->connection_count--;
 266
 267         if (1 == _ctsvc_connection_on_thread) {
 268                 if (0 == _ctsvc_connection)
 269                         ctsvc_ipc_destroy_for_change_subscription(true);
 270                 ctsvc_view_uri_deinit();
 271                 ctsvc_inotify_close();
 272                 ctsvc_socket_final();
 273                 DBG("System : connection_on_thread was destroyed successfully");
 274         } else if (1 < _ctsvc_connection_on_thread) {
 275                 DBG("connection count is %d", _ctsvc_connection_on_thread);
 276         } else {
 277                 /* LCOV_EXCL_START */
 278                 DBG("call contacts_connect_on_thread(), connection count is %d",
 279                                 _ctsvc_connection_on_thread);
 280                 ctsvc_mutex_unlock(CTS_MUTEX_CONNECTION);
 281                 return CONTACTS_ERROR_DB;
 282                 /* LCOV_EXCL_STOP */
 283         }
 284
 285         _ctsvc_connection_on_thread--;
 286
 287         if (0 == base->connection_count) {
 288                 INFO("connection_count is 0. remove handle");
 289                 ret = ctsvc_client_handle_remove(ctsvc_client_get_tid(), contact);
 290                 WARN_IF(CONTACTS_ERROR_NONE != ret, "ctsvc_client_handle_remove() Fail(%d)", ret);
 291         }
 292         ctsvc_mutex_unlock(CTS_MUTEX_CONNECTION);
 293
 294         return CONTACTS_ERROR_NONE;
 295 }
 296