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e4ced412bb
This has a few semi-interdependent pieces: * Factoring out the file opening/closing/renaming from the GC/CC logging. * Using IPC to have the child log to files that the parent opened. * Changing nsIMemoryInfoDumper.dumpGCAndCCLogsToFile to report completion of child process logging (which was impossible before this, and which is needed to have a meaningful test case). * Changing about:memory to dump logs for child processes, matching the behavior of the "Measure" button, because it can tell the user where they are now. * Add a test for multiprocess GC/CC log dumping (only of the XPCOM interface, not by clicking buttons and scraping the about:memory page, but done as a chrome mochitest to start remote browsers); based on test_memoryReporters2.xul in the same directory.
61 lines
1.6 KiB
C++
61 lines
1.6 KiB
C++
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_ipc_FileDescriptorUtils_h
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#define mozilla_ipc_FileDescriptorUtils_h
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#include "mozilla/Attributes.h"
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#include "mozilla/ipc/FileDescriptor.h"
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#include "nsIRunnable.h"
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#include <stdio.h>
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namespace mozilla {
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namespace ipc {
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// When Dispatch() is called (from main thread) this class arranges to close the
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// provided FileDescriptor on one of the socket transport service threads (to
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// avoid main thread I/O).
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class CloseFileRunnable MOZ_FINAL : public nsIRunnable
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{
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typedef mozilla::ipc::FileDescriptor FileDescriptor;
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FileDescriptor mFileDescriptor;
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public:
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CloseFileRunnable(const FileDescriptor& aFileDescriptor)
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#ifdef DEBUG
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;
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#else
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: mFileDescriptor(aFileDescriptor)
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{ }
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#endif
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NS_DECL_THREADSAFE_ISUPPORTS
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NS_DECL_NSIRUNNABLE
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void Dispatch();
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private:
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~CloseFileRunnable();
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void CloseFile();
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};
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// On failure, FileDescriptorToFILE closes the given descriptor; on
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// success, fclose()ing the returned FILE* will close the handle.
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// This is meant for use with FileDescriptors received over IPC.
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FILE* FileDescriptorToFILE(const FileDescriptor& aDesc,
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const char* aOpenMode);
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// FILEToFileDescriptor does not consume the given FILE*; it must be
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// fclose()d as normal, and this does not invalidate the returned
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// FileDescriptor.
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FileDescriptor FILEToFileDescriptor(FILE* aStream);
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} // namespace ipc
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} // namespace mozilla
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#endif // mozilla_ipc_FileDescriptorUtils_h
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