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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /parser/html/nsHtml5OwningUTF16Buffer.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'parser/html/nsHtml5OwningUTF16Buffer.cpp')
-rw-r--r--parser/html/nsHtml5OwningUTF16Buffer.cpp86
1 files changed, 86 insertions, 0 deletions
diff --git a/parser/html/nsHtml5OwningUTF16Buffer.cpp b/parser/html/nsHtml5OwningUTF16Buffer.cpp
new file mode 100644
index 000000000..213e40209
--- /dev/null
+++ b/parser/html/nsHtml5OwningUTF16Buffer.cpp
@@ -0,0 +1,86 @@
+/* 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 "nsHtml5OwningUTF16Buffer.h"
+
+nsHtml5OwningUTF16Buffer::nsHtml5OwningUTF16Buffer(char16_t* aBuffer)
+ : nsHtml5UTF16Buffer(aBuffer, 0),
+ next(nullptr),
+ key(nullptr)
+{
+ MOZ_COUNT_CTOR(nsHtml5OwningUTF16Buffer);
+}
+
+nsHtml5OwningUTF16Buffer::nsHtml5OwningUTF16Buffer(void* aKey)
+ : nsHtml5UTF16Buffer(nullptr, 0),
+ next(nullptr),
+ key(aKey)
+{
+ MOZ_COUNT_CTOR(nsHtml5OwningUTF16Buffer);
+}
+
+nsHtml5OwningUTF16Buffer::~nsHtml5OwningUTF16Buffer()
+{
+ MOZ_COUNT_DTOR(nsHtml5OwningUTF16Buffer);
+ DeleteBuffer();
+
+ // This is to avoid dtor recursion on 'next', bug 706932.
+ RefPtr<nsHtml5OwningUTF16Buffer> tail;
+ tail.swap(next);
+ while (tail && tail->mRefCnt == 1) {
+ RefPtr<nsHtml5OwningUTF16Buffer> tmp;
+ tmp.swap(tail->next);
+ tail.swap(tmp);
+ }
+}
+
+// static
+already_AddRefed<nsHtml5OwningUTF16Buffer>
+nsHtml5OwningUTF16Buffer::FalliblyCreate(int32_t aLength)
+{
+ char16_t* newBuf = new (mozilla::fallible) char16_t[aLength];
+ if (!newBuf) {
+ return nullptr;
+ }
+ RefPtr<nsHtml5OwningUTF16Buffer> newObj =
+ new (mozilla::fallible) nsHtml5OwningUTF16Buffer(newBuf);
+ if (!newObj) {
+ delete[] newBuf;
+ return nullptr;
+ }
+ return newObj.forget();
+}
+
+void
+nsHtml5OwningUTF16Buffer::Swap(nsHtml5OwningUTF16Buffer* aOther)
+{
+ nsHtml5UTF16Buffer::Swap(aOther);
+}
+
+
+// Not using macros for AddRef and Release in order to be able to refcount on
+// and create on different threads.
+
+nsrefcnt
+nsHtml5OwningUTF16Buffer::AddRef()
+{
+ NS_PRECONDITION(int32_t(mRefCnt) >= 0, "Illegal refcount.");
+ ++mRefCnt;
+ NS_LOG_ADDREF(this, mRefCnt, "nsHtml5OwningUTF16Buffer", sizeof(*this));
+ return mRefCnt;
+}
+
+nsrefcnt
+nsHtml5OwningUTF16Buffer::Release()
+{
+ NS_PRECONDITION(0 != mRefCnt, "Release without AddRef.");
+ --mRefCnt;
+ NS_LOG_RELEASE(this, mRefCnt, "nsHtml5OwningUTF16Buffer");
+ if (mRefCnt == 0) {
+ mRefCnt = 1; /* stabilize */
+ delete this;
+ return 0;
+ }
+ return mRefCnt;
+}