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-rw-r--r--dom/heapsnapshot/HeapSnapshotTempFileHelperParent.cpp53
1 files changed, 53 insertions, 0 deletions
diff --git a/dom/heapsnapshot/HeapSnapshotTempFileHelperParent.cpp b/dom/heapsnapshot/HeapSnapshotTempFileHelperParent.cpp
new file mode 100644
index 000000000..7246a9daa
--- /dev/null
+++ b/dom/heapsnapshot/HeapSnapshotTempFileHelperParent.cpp
@@ -0,0 +1,53 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* vim: set sw=4 ts=8 et tw=80 : */
+/* 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/devtools/HeapSnapshot.h"
+#include "mozilla/devtools/HeapSnapshotTempFileHelperParent.h"
+#include "mozilla/ErrorResult.h"
+#include "private/pprio.h"
+
+#include "nsIFile.h"
+
+namespace mozilla {
+namespace devtools {
+
+using ipc::FileDescriptor;
+
+static bool
+openFileFailure(ErrorResult& rv,
+ OpenHeapSnapshotTempFileResponse* outResponse)
+{
+ *outResponse = rv.StealNSResult();
+ return true;
+}
+
+bool
+HeapSnapshotTempFileHelperParent::RecvOpenHeapSnapshotTempFile(
+ OpenHeapSnapshotTempFileResponse* outResponse)
+{
+ auto start = TimeStamp::Now();
+ ErrorResult rv;
+ nsAutoString filePath;
+ nsCOMPtr<nsIFile> file = HeapSnapshot::CreateUniqueCoreDumpFile(rv,
+ start,
+ filePath);
+ if (NS_WARN_IF(rv.Failed()))
+ return openFileFailure(rv, outResponse);
+
+ PRFileDesc* prfd;
+ rv = file->OpenNSPRFileDesc(PR_WRONLY, 0, &prfd);
+ if (NS_WARN_IF(rv.Failed()))
+ return openFileFailure(rv, outResponse);
+
+ FileDescriptor::PlatformHandleType handle =
+ FileDescriptor::PlatformHandleType(PR_FileDesc2NativeHandle(prfd));
+ FileDescriptor fd(handle);
+ *outResponse = OpenedFile(filePath, fd);
+ return true;
+}
+
+} // namespace devtools
+} // namespace mozilla