Add m-esr52 at 52.6.0

1 files changed, 71 insertions, 0 deletions

diff --git a/js/src/jsapi-tests/testGCChunkPool.cpp b/js/src/jsapi-tests/testGCChunkPool.cpp
new file mode 100644
index 000000000..68faa3150
--- /dev/null
+++ b/js/src/jsapi-tests/testGCChunkPool.cpp
@@ -0,0 +1,71 @@
+/* -*- 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/Move.h"
+
+#include "gc/GCRuntime.h"
+#include "gc/Heap.h"
+
+#include "jsapi-tests/tests.h"
+
+BEGIN_TEST(testGCChunkPool)
+{
+    const int N = 10;
+    js::gc::ChunkPool pool;
+
+    // Create.
+    for (int i = 0; i < N; ++i) {
+        js::gc::Chunk* chunk = js::gc::Chunk::allocate(cx);
+        CHECK(chunk);
+        pool.push(chunk);
+    }
+    MOZ_ASSERT(pool.verify());
+
+    // Iterate.
+    uint32_t i = 0;
+    for (js::gc::ChunkPool::Iter iter(pool); !iter.done(); iter.next(), ++i)
+        CHECK(iter.get());
+    CHECK(i == pool.count());
+    MOZ_ASSERT(pool.verify());
+
+    // Push/Pop.
+    for (int i = 0; i < N; ++i) {
+        js::gc::Chunk* chunkA = pool.pop();
+        js::gc::Chunk* chunkB = pool.pop();
+        js::gc::Chunk* chunkC = pool.pop();
+        pool.push(chunkA);
+        pool.push(chunkB);
+        pool.push(chunkC);
+    }
+    MOZ_ASSERT(pool.verify());
+
+    // Remove.
+    js::gc::Chunk* chunk = nullptr;
+    int offset = N / 2;
+    for (js::gc::ChunkPool::Iter iter(pool); !iter.done(); iter.next(), --offset) {
+        if (offset == 0) {
+            chunk = pool.remove(iter.get());
+            break;
+        }
+    }
+    CHECK(chunk);
+    MOZ_ASSERT(!pool.contains(chunk));
+    MOZ_ASSERT(pool.verify());
+    pool.push(chunk);
+
+    // Destruct.
+    js::AutoLockGC lock(cx);
+    for (js::gc::ChunkPool::Iter iter(pool); !iter.done();) {
+        js::gc::Chunk* chunk = iter.get();
+        iter.next();
+        pool.remove(chunk);
+        js::gc::UnmapPages(chunk, js::gc::ChunkSize);
+    }
+
+    return true;
+}
+END_TEST(testGCChunkPool)