2 * Copyright (c) 2011 Samsung Electronics Co., Ltd All Rights Reserved
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 * @file plugin-utils.cpp
20 * @brief Header file for plugin util
24 #include "plugin_utils.h"
25 #include <dpl/exception.h>
26 #include <dpl/log/log.h>
27 #include <dpl/wrt-dao-ro/global_config.h>
30 using namespace WrtDB;
32 namespace PluginUtils {
33 const char* PLUGIN_INSTALL_LOCK_FILE = "/tmp/.wrt_plugin_install_lock";
35 static int s_plugin_install_lock_fd = -1;
37 bool lockPluginInstallation(bool isPreload)
40 fprintf(stderr, "Skip create lock file.. \n");
46 LogInfo("Try to lock for plugins installation.");
48 s_plugin_install_lock_fd =
49 open(PLUGIN_INSTALL_LOCK_FILE, O_RDONLY | O_CREAT, 0666);
51 if (s_plugin_install_lock_fd == -1) {
52 LogError("Lock file open failed!");
57 ret = flock(s_plugin_install_lock_fd, LOCK_EX); //lock with waiting
60 LogError("Lock failed!");
62 close(s_plugin_install_lock_fd);
63 s_plugin_install_lock_fd = -1;
71 bool unlockPluginInstallation(bool isPreload)
73 LogInfo("Unlock for plugins installation.");
75 fprintf(stderr, "Skip plugin unlock.. \n");
79 if (s_plugin_install_lock_fd != -1) {
82 ret = flock(s_plugin_install_lock_fd, LOCK_UN); //unlock
85 LogError("Unlock failed!");
88 close(s_plugin_install_lock_fd);
89 s_plugin_install_lock_fd = -1;
93 LogError("Lock file was not created!");
99 bool checkPluginInstallationRequired()
101 std::string installRequest =
102 std::string(GlobalConfig::GetPluginInstallInitializerName());
104 FileState::Type installationRequest =
105 checkFile(installRequest);
107 switch (installationRequest) {
108 case FileState::FILE_EXISTS:
110 case FileState::FILE_NOT_EXISTS:
113 LogWarning("Opening installation request file failed");
118 bool removeInstallationRequiredFlag()
120 std::string installRequest =
121 std::string(GlobalConfig::GetPluginInstallInitializerName());
123 return removeFile(installRequest);
126 //checks if file exists and is regular file
127 FileState::Type checkFile(const std::string& filename)
131 if (-1 == stat(filename.c_str(), &tmp)) {
132 if (ENOENT == errno) {
133 return FileState::FILE_NOT_EXISTS;
135 return FileState::FILE_READ_DATA_ERROR;
136 } else if (!S_ISREG(tmp.st_mode)) {
137 return FileState::FILE_EXISTS_NOT_REGULAR;
139 return FileState::FILE_EXISTS;
142 bool removeFile(const std::string& filename)
144 if (0 != unlink(filename.c_str())) {
150 } //namespace PluginUtils