From e6eb6c7fe421abe1fa6d2ca0934847cf326fa222 Mon Sep 17 00:00:00 2001
From: John Firebaugh <john.firebaugh@gmail.com>
Date: Wed, 13 May 2015 11:50:16 -0700
Subject: Use uv::async

---
 src/mbgl/storage/request.cpp | 38 +++++++-------------------------------
 1 file changed, 7 insertions(+), 31 deletions(-)

(limited to 'src/mbgl/storage')

diff --git a/src/mbgl/storage/request.cpp b/src/mbgl/storage/request.cpp
index 53a882f2a6..a6d845ce4a 100644
--- a/src/mbgl/storage/request.cpp
+++ b/src/mbgl/storage/request.cpp
@@ -5,9 +5,7 @@
 
 #include <mbgl/util/util.hpp>
 #include <mbgl/util/std.hpp>
-#include <mbgl/util/uv.hpp>
-
-#include <uv.h>
+#include <mbgl/util/uv_detail.hpp>
 
 #include <cassert>
 #include <functional>
@@ -18,18 +16,9 @@ struct Request::Canceled { std::mutex mutex; bool confirmed = false; };
 
 // Note: This requires that loop is running in the current thread (or not yet running).
 Request::Request(const Resource &resource_, uv_loop_t *loop, Callback callback_)
-    : callback(callback_), resource(resource_) {
-    // When there is no loop supplied (== nullptr), the callback will be fired in an arbitrary
-    // thread (the thread notify() is called from) rather than kicking back to the calling thread.
-    if (loop) {
-        async = new uv_async_t;
-        async->data = this;
-#if UV_VERSION_MAJOR == 0 && UV_VERSION_MINOR <= 10
-        uv_async_init(loop, async, [](uv_async_t *a, int) { reinterpret_cast<Request *>(a->data)->notifyCallback(); });
-#else
-        uv_async_init(loop, async, [](uv_async_t *a) { reinterpret_cast<Request *>(a->data)->notifyCallback(); });
-#endif
-    }
+    : async(util::make_unique<uv::async>(loop, [this] { notifyCallback(); })),
+      callback(callback_),
+      resource(resource_) {
 }
 
 // Called in the originating thread.
@@ -59,27 +48,14 @@ void Request::invoke() {
     delete this;
 }
 
-Request::~Request() {
-    if (async) {
-        uv_close(reinterpret_cast<uv_handle_t*>(async), [](uv_handle_t* handle) {
-            delete reinterpret_cast<uv_async_t*>(handle);
-        });
-    }
-}
+Request::~Request() = default;
 
 // Called in the FileSource thread.
 void Request::notify(const std::shared_ptr<const Response> &response_) {
     assert(!response);
     response = response_;
     assert(response);
-
-    if (async) {
-        uv_async_send(async);
-    } else {
-        // This request is not cancelable. This means that the callback will be executed in an
-        // arbitrary thread (== FileSource thread).
-        invoke();
-    }
+    async->send();
 }
 
 // Called in the originating thread.
@@ -97,7 +73,7 @@ void Request::destruct() {
     assert(canceled);
     std::unique_lock<std::mutex> lock(canceled->mutex);
     canceled->confirmed = true;
-    uv_async_send(async);
+    async->send();
     // after this method returns, the FileSource thread has no knowledge of
     // this object anymore.
 }
-- 
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