Add m-esr52 at 52.6.0

1 files changed, 103 insertions, 0 deletions

diff --git a/js/src/jsapi-tests/testThreadingThread.cpp b/js/src/jsapi-tests/testThreadingThread.cpp
new file mode 100644
index 000000000..ead2e8909
--- /dev/null
+++ b/js/src/jsapi-tests/testThreadingThread.cpp
@@ -0,0 +1,103 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+* vim: set ts=8 sts=4 et sw=4 tw=99:
+*/
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "mozilla/Atomics.h"
+#include "mozilla/IntegerRange.h"
+#include "mozilla/Move.h"
+#include "mozilla/Vector.h"
+
+#include "jsalloc.h"
+
+#include "jsapi-tests/tests.h"
+#include "threading/Thread.h"
+
+BEGIN_TEST(testThreadingThreadJoin)
+{
+    bool flag = false;
+    js::Thread thread;
+    CHECK(thread.init([](bool* flagp){*flagp = true;}, &flag));
+    CHECK(thread.joinable());
+    thread.join();
+    CHECK(flag);
+    CHECK(!thread.joinable());
+    return true;
+}
+END_TEST(testThreadingThreadJoin)
+
+BEGIN_TEST(testThreadingThreadDetach)
+{
+    // We are going to detach this thread. Unlike join, we can't have it pointing at the stack
+    // because it might do the write after we have returned and pushed a new frame.
+    bool* flag = js_new<bool>(false);
+    js::Thread thread;
+    CHECK(thread.init([](bool* flag){*flag = true; js_delete(flag);}, mozilla::Move(flag)));
+    CHECK(thread.joinable());
+    thread.detach();
+    CHECK(!thread.joinable());
+
+    return true;
+}
+END_TEST(testThreadingThreadDetach)
+
+BEGIN_TEST(testThreadingThreadSetName)
+{
+    js::Thread thread;
+    CHECK(thread.init([](){js::ThisThread::SetName("JSAPI Test Thread");}));
+    thread.detach();
+    return true;
+}
+END_TEST(testThreadingThreadSetName)
+
+BEGIN_TEST(testThreadingThreadId)
+{
+    CHECK(js::Thread::Id() == js::Thread::Id());
+    js::Thread::Id fromOther;
+    js::Thread thread;
+    CHECK(thread.init([](js::Thread::Id* idp){*idp = js::ThisThread::GetId();}, &fromOther));
+    js::Thread::Id fromMain = thread.get_id();
+    thread.join();
+    CHECK(fromOther == fromMain);
+    return true;
+}
+END_TEST(testThreadingThreadId)
+
+BEGIN_TEST(testThreadingThreadVectorMoveConstruct)
+{
+    const static size_t N = 10;
+    mozilla::Atomic<int> count(0);
+    mozilla::Vector<js::Thread, 0, js::SystemAllocPolicy> v;
+    for (auto i : mozilla::MakeRange(N)) {
+        CHECK(v.emplaceBack());
+        CHECK(v.back().init([](mozilla::Atomic<int>* countp){(*countp)++;}, &count));
+        CHECK(v.length() == i + 1);
+    }
+    for (auto& th : v)
+        th.join();
+    CHECK(count == 10);
+    return true;
+}
+END_TEST(testThreadingThreadVectorMoveConstruct)
+
+// This test is checking that args are using "decay" copy, per spec. If we do
+// not use decay copy properly, the rvalue reference |bool&& b| in the
+// constructor will automatically become an lvalue reference |bool& b| in the
+// trampoline, causing us to read through the reference when passing |bool bb|
+// from the trampoline. If the parent runs before the child, the bool may have
+// already become false, causing the trampoline to read the changed value, thus
+// causing the child's assertion to fail.
+BEGIN_TEST(testThreadingThreadArgCopy)
+{
+    for (size_t i = 0; i < 10000; ++i) {
+        bool b = true;
+        js::Thread thread;
+        CHECK(thread.init([](bool bb){MOZ_RELEASE_ASSERT(bb);}, b));
+        b = false;
+        thread.join();
+    }
+    return true;
+}
+END_TEST(testThreadingThreadArgCopy)