Added regexp-re2 library to external.
Change-Id: I54e60045f0fee91b64e4d7291e5bb6c6cffb4562
diff --git a/util/thread.cc b/util/thread.cc
new file mode 100644
index 0000000..7349991
--- /dev/null
+++ b/util/thread.cc
@@ -0,0 +1,44 @@
+// Copyright 2009 The RE2 Authors. All Rights Reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+#include <pthread.h>
+
+#include "util/util.h"
+#include "util/thread.h"
+
+Thread::Thread() {
+ pid_ = 0;
+ running_ = 0;
+ joinable_ = 0;
+}
+
+Thread::~Thread() {
+}
+
+void *startThread(void *v) {
+ Thread* t = (Thread*)v;
+ t->Run();
+ return 0;
+}
+
+void Thread::Start() {
+ CHECK(!running_);
+ pthread_create(&pid_, 0, startThread, this);
+ running_ = true;
+ if (!joinable_)
+ pthread_detach(pid_);
+}
+
+void Thread::Join() {
+ CHECK(running_);
+ CHECK(joinable_);
+ void *val;
+ pthread_join(pid_, &val);
+ running_ = 0;
+}
+
+void Thread::SetJoinable(bool j) {
+ CHECK(!running_);
+ joinable_ = j;
+}