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/* 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/. */
#ifndef mozilla_ipc_CrashReporterHelper_h
#define mozilla_ipc_CrashReporterHelper_h
#include "CrashReporterHost.h"
#include "mozilla/UniquePtr.h"
#include "nsExceptionHandler.h"
#include "nsICrashService.h"
#include "nsPrintfCString.h"
namespace mozilla {
namespace ipc {
/**
* This class encapsulates the common elements of crash report handling for
* toplevel protocols representing processes. To use this class, you should:
*
* 1. Declare a method to initialize the crash reporter in your IPDL:
* `async InitCrashReporter(NativeThreadId threadId)`
*
* 2. Inherit from this class, providing the appropriate `GeckoProcessType`
* enum value for the template parameter PT.
*
* 3. When your protocol actor is destroyed with a reason of `AbnormalShutdown`,
* you should call `GenerateCrashReport(OtherPid())`. If you need the crash
* report ID it will be copied in the second optional parameter upon
* successful crash report generation.
*/
template <GeckoProcessType PT>
class CrashReporterHelper {
public:
CrashReporterHelper() : mCrashReporter(nullptr) {}
IPCResult RecvInitCrashReporter(const CrashReporter::ThreadId& aThreadId) {
mCrashReporter = MakeUnique<ipc::CrashReporterHost>(PT, aThreadId);
return IPC_OK();
}
protected:
void GenerateCrashReport(base::ProcessId aPid,
nsString* aMinidumpId = nullptr) {
nsAutoString minidumpId;
if (!mCrashReporter) {
HandleOrphanedMinidump(aPid, minidumpId);
} else if (mCrashReporter->GenerateCrashReport(aPid)) {
minidumpId = mCrashReporter->MinidumpID();
}
if (aMinidumpId) {
*aMinidumpId = minidumpId;
}
mCrashReporter = nullptr;
}
private:
void HandleOrphanedMinidump(base::ProcessId aPid, nsString& aMinidumpId) {
if (CrashReporter::FinalizeOrphanedMinidump(aPid, PT, &aMinidumpId)) {
CrashReporterHost::RecordCrash(PT, nsICrashService::CRASH_TYPE_CRASH,
aMinidumpId);
} else {
NS_WARNING(nsPrintfCString("child process pid = %d crashed without "
"leaving a minidump behind",
aPid)
.get());
}
}
protected:
UniquePtr<ipc::CrashReporterHost> mCrashReporter;
};
} // namespace ipc
} // namespace mozilla
#endif // mozilla_ipc_CrashReporterHelper_h