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()
41 LogInfo("Try to lock for plugins installation.");
43 s_plugin_install_lock_fd =
44 open(PLUGIN_INSTALL_LOCK_FILE, O_RDONLY | O_CREAT, 0666);
46 if (s_plugin_install_lock_fd == -1) {
47 LogError("Lock file open failed!");
52 ret = flock(s_plugin_install_lock_fd, LOCK_EX); //lock with waiting
55 LogError("Lock failed!");
57 close(s_plugin_install_lock_fd);
58 s_plugin_install_lock_fd = -1;
66 bool unlockPluginInstallation()
68 LogInfo("Unlock for plugins installation.");
70 if (s_plugin_install_lock_fd != -1) {
73 ret = flock(s_plugin_install_lock_fd, LOCK_UN); //unlock
76 LogError("Unlock failed!");
79 close(s_plugin_install_lock_fd);
80 s_plugin_install_lock_fd = -1;
84 LogError("Lock file was not created!");
90 bool checkPluginInstallationRequired()
92 std::string installRequest =
93 std::string(GlobalConfig::GetPluginInstallInitializerName());
95 FileState::Type installationRequest =
96 checkFile(installRequest);
98 switch (installationRequest) {
99 case FileState::FILE_EXISTS:
101 case FileState::FILE_NOT_EXISTS:
104 LogWarning("Opening installation request file failed");
109 bool removeInstallationRequiredFlag()
111 std::string installRequest =
112 std::string(GlobalConfig::GetPluginInstallInitializerName());
114 return removeFile(installRequest);
117 //checks if file exists and is regular file
118 FileState::Type checkFile(const std::string& filename)
122 if (-1 == stat(filename.c_str(), &tmp)) {
123 if (ENOENT == errno) {
124 return FileState::FILE_NOT_EXISTS;
126 return FileState::FILE_READ_DATA_ERROR;
127 } else if (!S_ISREG(tmp.st_mode)) {
128 return FileState::FILE_EXISTS_NOT_REGULAR;
130 return FileState::FILE_EXISTS;
133 bool removeFile(const std::string& filename)
135 if (0 != unlink(filename.c_str())) {
141 } //namespace PluginUtils