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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chromecast/crash/linux/crash_util.h"
#include "base/bind.h"
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/threading/thread_restrictions.h"
#include "base/time/time.h"
#include "chromecast/base/path_utils.h"
#include "chromecast/base/version.h"
#include "chromecast/crash/app_state_tracker.h"
#include "chromecast/crash/linux/dummy_minidump_generator.h"
#include "chromecast/crash/linux/minidump_writer.h"
namespace chromecast {
namespace {
// This can be set to a callback for testing. This allows us to inject a fake
// dumpstate routine to avoid calling an executable during an automated test.
// This value should not be mutated through any other function except
// CrashUtil::SetDumpStateCbForTest().
static base::Callback<int(const std::string&)>* g_dumpstate_cb = nullptr;
} // namespace
// static
uint64_t CrashUtil::GetCurrentTimeMs() {
return (base::TimeTicks::Now() - base::TimeTicks()).InMilliseconds();
}
// static
bool CrashUtil::RequestUploadCrashDump(
const std::string& existing_minidump_path,
const std::string& crashed_process_name,
uint64_t crashed_process_start_time_ms) {
// Remove IO restrictions from this thread. Chromium IO functions must be used
// to access the file system and upload information to the crash server.
const bool io_allowed = base::ThreadRestrictions::SetIOAllowed(true);
LOG(INFO) << "Request to upload crash dump " << existing_minidump_path
<< " for process " << crashed_process_name;
uint64_t uptime_ms = GetCurrentTimeMs() - crashed_process_start_time_ms;
MinidumpParams params(crashed_process_name,
uptime_ms,
"", // suffix
AppStateTracker::GetPreviousApp(),
AppStateTracker::GetCurrentApp(),
AppStateTracker::GetLastLaunchedApp(),
CAST_BUILD_RELEASE,
CAST_BUILD_INCREMENTAL,
"" /* reason */);
DummyMinidumpGenerator minidump_generator(existing_minidump_path);
base::FilePath filename = base::FilePath(existing_minidump_path).BaseName();
std::unique_ptr<MinidumpWriter> writer;
if (g_dumpstate_cb) {
writer.reset(new MinidumpWriter(
&minidump_generator, filename.value(), params, *g_dumpstate_cb));
} else {
writer.reset(
new MinidumpWriter(&minidump_generator, filename.value(), params));
}
bool success = false;
writer->set_non_blocking(false);
success = (0 == writer->Write()); // error already logged.
// In case the file is still in $TEMP, remove it. Note that DeleteFile() will
// return true if |existing_minidump_path| has already been moved.
if (!base::DeleteFile(base::FilePath(existing_minidump_path), false)) {
LOG(ERROR) << "Unable to delete temp minidump file "
<< existing_minidump_path;
success = false;
}
// Use std::endl to flush the log stream in case this process exits.
LOG(INFO) << "Request to upload crash dump finished. "
<< "Exit now if it is main process that crashed." << std::endl;
// Restore the original IO restrictions on the thread, if there were any.
base::ThreadRestrictions::SetIOAllowed(io_allowed);
return success;
}
void CrashUtil::SetDumpStateCbForTest(
const base::Callback<int(const std::string&)>& cb) {
DCHECK(!g_dumpstate_cb);
g_dumpstate_cb = new base::Callback<int(const std::string&)>(cb);
}
} // namespace chromecast
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