feat Create workers

1 files changed, 61 insertions, 0 deletions

diff --git a/src/job_queue.cpp b/src/job_queue.cpp
new file mode 100644
index 0000000..49bf34f
--- /dev/null
+++ b/src/job_queue.cpp
@@ -0,0 +1,61 @@
+/*
+ * Copyright 2022 Frederico de Oliveira Linhares
+ *
+ * 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 "job_queue.hpp"
+
+#include <chrono>
+
+JobQueue::JobQueue():
+  jobs{},
+  _stop{false}
+{
+}
+
+void
+JobQueue::stop()
+{
+  using namespace std::chrono_literals;
+
+  while(!this->jobs.empty()) std::this_thread::sleep_for(1000ms);
+  this->_stop = true;
+  this->condition.notify_all();
+}
+
+void
+JobQueue::push(Job job)
+{
+  std::unique_lock<std::mutex> lock{this->access};
+  this->jobs.push_back(job);
+  this->condition.notify_one();
+}
+
+Job
+JobQueue::pop()
+{
+  std::unique_lock<std::mutex> lock{this->access};
+  this->condition.wait(lock, [this]{
+    return !this->jobs.empty() || this->_stop;});
+  if(!this->jobs.empty())
+  {
+    auto job{std::move(this->jobs.front())};
+    this->jobs.pop_front();
+    return job;
+  }
+  else
+  {
+    return Job{nullptr};
+  }
+}