1 /*
2 * Copyright 2019 The Android Open Source Project
3 *
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
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
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.
15 */
16
17 #include "os/parameter_provider.h"
18
19 #include <unistd.h>
20
21 #include <cerrno>
22 #include <mutex>
23 #include <string>
24
25 #include "os/log.h"
26
27 namespace bluetooth {
28 namespace os {
29
30 namespace {
31 std::mutex parameter_mutex;
32 std::string config_file_path;
33 std::string snoop_log_file_path;
34 std::string snooz_log_file_path;
35 } // namespace
36
37 // Write to $PWD/bt_stack.conf if $PWD can be found, otherwise, write to $HOME/bt_stack.conf
ConfigFilePath()38 std::string ParameterProvider::ConfigFilePath() {
39 {
40 std::lock_guard<std::mutex> lock(parameter_mutex);
41 if (!config_file_path.empty()) {
42 return config_file_path;
43 }
44 }
45 char cwd[PATH_MAX] = {};
46 if (getcwd(cwd, sizeof(cwd)) == nullptr) {
47 LOG_ERROR("Failed to get current working directory due to \"%s\", returning default", strerror(errno));
48 return "bt_config.conf";
49 }
50 return std::string(cwd) + "/bt_config.conf";
51 }
52
OverrideConfigFilePath(const std::string & path)53 void ParameterProvider::OverrideConfigFilePath(const std::string& path) {
54 std::lock_guard<std::mutex> lock(parameter_mutex);
55 config_file_path = path;
56 }
57
SnoopLogFilePath()58 std::string ParameterProvider::SnoopLogFilePath() {
59 {
60 std::lock_guard<std::mutex> lock(parameter_mutex);
61 if (!snoop_log_file_path.empty()) {
62 return snoop_log_file_path;
63 }
64 }
65 char cwd[PATH_MAX] = {};
66 if (getcwd(cwd, sizeof(cwd)) == nullptr) {
67 LOG_ERROR("Failed to get current working directory due to \"%s\", returning default", strerror(errno));
68 return "btsnoop_hci.log";
69 }
70 return std::string(cwd) + "/btsnoop_hci.log";
71 }
72
OverrideSnoopLogFilePath(const std::string & path)73 void ParameterProvider::OverrideSnoopLogFilePath(const std::string& path) {
74 std::lock_guard<std::mutex> lock(parameter_mutex);
75 snoop_log_file_path = path;
76 }
77
78 // Return the path to the default snooz log file location
SnoozLogFilePath()79 std::string ParameterProvider::SnoozLogFilePath() {
80 {
81 std::lock_guard<std::mutex> lock(parameter_mutex);
82 if (!snooz_log_file_path.empty()) {
83 return snooz_log_file_path;
84 }
85 }
86 char cwd[PATH_MAX] = {};
87 if (getcwd(cwd, sizeof(cwd)) == nullptr) {
88 LOG_ERROR("Failed to get current working directory due to \"%s\", returning default", strerror(errno));
89 return "bt_config.conf";
90 }
91 return std::string(cwd) + "/btsnooz_hci.log";
92 }
93
OverrideSnoozLogFilePath(const std::string & path)94 void ParameterProvider::OverrideSnoozLogFilePath(const std::string& path) {
95 std::lock_guard<std::mutex> lock(parameter_mutex);
96 snooz_log_file_path = path;
97 }
98
99 } // namespace os
100 } // namespace bluetooth