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authorKonstantin Käfer <mail@kkaefer.com>2018-12-13 18:45:29 +0100
committerKonstantin Käfer <mail@kkaefer.com>2018-12-14 11:03:03 +0100
commit1d8235f5b899a2cd8414522b2d72b96fab91577b (patch)
tree2ab56dce064de872525db7f24ba150a9065c4757 /platform/default/src/mbgl/util/default_thread_pool.cpp
parentc2a4a8822ce9577c972975da61034a30fb0fe3e9 (diff)
downloadqtlocation-mapboxgl-1d8235f5b899a2cd8414522b2d72b96fab91577b.tar.gz
[build] rework platform/default directory and add -files.txt for vendored libs
Diffstat (limited to 'platform/default/src/mbgl/util/default_thread_pool.cpp')
-rw-r--r--platform/default/src/mbgl/util/default_thread_pool.cpp57
1 files changed, 57 insertions, 0 deletions
diff --git a/platform/default/src/mbgl/util/default_thread_pool.cpp b/platform/default/src/mbgl/util/default_thread_pool.cpp
new file mode 100644
index 0000000000..d3950bb8aa
--- /dev/null
+++ b/platform/default/src/mbgl/util/default_thread_pool.cpp
@@ -0,0 +1,57 @@
+#include <mbgl/util/default_thread_pool.hpp>
+#include <mbgl/actor/mailbox.hpp>
+#include <mbgl/util/platform.hpp>
+#include <mbgl/util/string.hpp>
+
+namespace mbgl {
+
+ThreadPool::ThreadPool(std::size_t count) {
+ threads.reserve(count);
+ for (std::size_t i = 0; i < count; ++i) {
+ threads.emplace_back([this, i]() {
+ platform::setCurrentThreadName(std::string{ "Worker " } + util::toString(i + 1));
+
+ while (true) {
+ std::unique_lock<std::mutex> lock(mutex);
+
+ cv.wait(lock, [this] {
+ return !queue.empty() || terminate;
+ });
+
+ if (terminate) {
+ return;
+ }
+
+ auto mailbox = queue.front();
+ queue.pop();
+ lock.unlock();
+
+ Mailbox::maybeReceive(mailbox);
+ }
+ });
+ }
+}
+
+ThreadPool::~ThreadPool() {
+ {
+ std::lock_guard<std::mutex> lock(mutex);
+ terminate = true;
+ }
+
+ cv.notify_all();
+
+ for (auto& thread : threads) {
+ thread.join();
+ }
+}
+
+void ThreadPool::schedule(std::weak_ptr<Mailbox> mailbox) {
+ {
+ std::lock_guard<std::mutex> lock(mutex);
+ queue.push(mailbox);
+ }
+
+ cv.notify_one();
+}
+
+} // namespace mbgl