1 files changed, 100 insertions, 0 deletions
diff --git a/gd/os/host/parameter_provider.cc b/gd/os/host/parameter_provider.cc
new file mode 100644
index 000000000..2220f940e
--- /dev/null
+++ b/gd/os/host/parameter_provider.cc
@@ -0,0 +1,100 @@
+/*
+ * Copyright 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "os/parameter_provider.h"
+
+#include <unistd.h>
+
+#include <cerrno>
+#include <mutex>
+#include <string>
+
+#include "os/log.h"
+
+namespace bluetooth {
+namespace os {
+
+namespace {
+std::mutex parameter_mutex;
+std::string config_file_path;
+std::string snoop_log_file_path;
+std::string snooz_log_file_path;
+}  // namespace
+
+// Write to $PWD/bt_stack.conf if $PWD can be found, otherwise, write to $HOME/bt_stack.conf
+std::string ParameterProvider::ConfigFilePath() {
+  {
+    std::lock_guard<std::mutex> lock(parameter_mutex);
+    if (!config_file_path.empty()) {
+      return config_file_path;
+    }
+  }
+  char cwd[PATH_MAX] = {};
+  if (getcwd(cwd, sizeof(cwd)) == nullptr) {
+    LOG_ERROR("Failed to get current working directory due to \"%s\", returning default", strerror(errno));
+    return "bt_config.conf";
+  }
+  return std::string(cwd) + "/bt_config.conf";
+}
+
+void ParameterProvider::OverrideConfigFilePath(const std::string& path) {
+  std::lock_guard<std::mutex> lock(parameter_mutex);
+  config_file_path = path;
+}
+
+std::string ParameterProvider::SnoopLogFilePath() {
+  {
+    std::lock_guard<std::mutex> lock(parameter_mutex);
+    if (!snoop_log_file_path.empty()) {
+      return snoop_log_file_path;
+    }
+  }
+  char cwd[PATH_MAX] = {};
+  if (getcwd(cwd, sizeof(cwd)) == nullptr) {
+    LOG_ERROR("Failed to get current working directory due to \"%s\", returning default", strerror(errno));
+    return "btsnoop_hci.log";
+  }
+  return std::string(cwd) + "/btsnoop_hci.log";
+}
+
+void ParameterProvider::OverrideSnoopLogFilePath(const std::string& path) {
+  std::lock_guard<std::mutex> lock(parameter_mutex);
+  snoop_log_file_path = path;
+}
+
+// Return the path to the default snooz log file location
+std::string ParameterProvider::SnoozLogFilePath() {
+  {
+    std::lock_guard<std::mutex> lock(parameter_mutex);
+    if (!snooz_log_file_path.empty()) {
+      return snooz_log_file_path;
+    }
+  }
+  char cwd[PATH_MAX] = {};
+  if (getcwd(cwd, sizeof(cwd)) == nullptr) {
+    LOG_ERROR("Failed to get current working directory due to \"%s\", returning default", strerror(errno));
+    return "bt_config.conf";
+  }
+  return std::string(cwd) + "/btsnooz_hci.log";
+}
+
+void ParameterProvider::OverrideSnoozLogFilePath(const std::string& path) {
+  std::lock_guard<std::mutex> lock(parameter_mutex);
+  snooz_log_file_path = path;
+}
+
+}  // namespace os
+}  // namespace bluetooth
+\ No newline at end of file