[A]add sdk_core.

sdk_core/src/base/thread_base.cpp

@@ -0,0 +1,71 @@
+//
+// The MIT License (MIT)
+//
+// Copyright (c) 2019 Livox. All rights reserved.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+//
+
+#include "thread_base.h"
+
+namespace livox {
+static void *APR_THREAD_FUNC ClassThreadHelperFunc(apr_thread_t *thd, void *data) {
+  ThreadBase *caller = static_cast<ThreadBase *>(data);
+  if (caller == NULL) {
+    return NULL;
+  }
+  caller->ThreadFunc();
+  apr_thread_exit(thd, APR_SUCCESS);
+  return NULL;
+}
+
+ThreadBase::ThreadBase() : thread_(NULL), quit_(false), pool_(NULL) {}
+
+bool ThreadBase::Start() {
+  quit_ = false;
+  apr_threadattr_t *thread_attr = NULL;
+  apr_status_t rv = APR_SUCCESS;
+  rv = apr_threadattr_create(&thread_attr, pool_);
+  if (rv != APR_SUCCESS) {
+    return false;
+  }
+  rv = apr_thread_create(&thread_, thread_attr, ClassThreadHelperFunc, this, pool_);
+  return rv == APR_SUCCESS;
+}
+
+void ThreadBase::Join() {
+  apr_status_t rv = APR_SUCCESS;
+  if (thread_) {
+    apr_thread_join(&rv, thread_);
+    thread_ = NULL;
+  }
+}
+
+bool ThreadBase::Init() {
+  return apr_pool_create(&pool_, NULL) == APR_SUCCESS;
+}
+
+void ThreadBase::Uninit() {
+  if (pool_) {
+    apr_pool_destroy(pool_);
+    pool_ = NULL;
+  }
+}
+
+}  // namespace livox