blob: e0a3decd5fa41b0b49f14e7cbfa21ef3c8eab424 [file] [log] [blame]
// 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 <string>
#include "base/bind.h"
#include "base/files/file_enumerator.h"
#include "base/files/file_util.h"
#include "base/logging.h"
#include "base/threading/thread_restrictions.h"
#include "base/time/time.h"
#include "chromecast/base/path_utils.h"
#include "chromecast/base/process_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 {
const char kDumpStateSuffix[] = ".txt.gz";
const char kMinidumpsDir[] = "minidumps";
const size_t kMaxFilesInMinidumpsDir = 22; // 10 crashes
// 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::OnceCallback<int(const std::string&)>* g_dumpstate_cb = nullptr;
} // namespace
// static
bool CrashUtil::HasSpaceToCollectCrash() {
// Normally the path is protected by a file lock, but we don't need to acquire
// that just to make an estimate of the space consumed.
base::FilePath dump_dir(GetHomePathASCII(kMinidumpsDir));
base::FileEnumerator file_enumerator(dump_dir, false /* recursive */,
base::FileEnumerator::FILES);
size_t total = 0;
for (base::FilePath name = file_enumerator.Next(); !name.empty();
name = file_enumerator.Next()) {
total++;
}
return total <= kMaxFilesInMinidumpsDir;
}
// static
bool CrashUtil::CollectDumpstate(const base::FilePath& minidump_path,
base::FilePath* dumpstate_path) {
std::vector<std::string> argv = {
chromecast::GetBinPathASCII("dumpstate").value(),
"-w",
"crash-request",
"-z",
"-o",
minidump_path.value() /* dumpstate appends ".txt.gz" to the filename */
};
std::string log;
if (!chromecast::GetAppOutput(argv, &log)) {
LOG(ERROR) << "failed to execute dumpstate";
return false;
}
*dumpstate_path = minidump_path.AddExtensionASCII(kDumpStateSuffix);
return true;
}
// static
uint64_t CrashUtil::GetCurrentTimeMs() {
return (base::TimeTicks::Now() - base::TimeTicks()).InMilliseconds();
}
// static
bool CrashUtil::RequestUploadCrashDump(
const std::string& existing_minidump_path,
uint64_t crashed_pid,
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_pid;
uint64_t uptime_ms = GetCurrentTimeMs() - crashed_process_start_time_ms;
MinidumpParams params(
uptime_ms,
"", // suffix
AppStateTracker::GetPreviousApp(), AppStateTracker::GetCurrentApp(),
AppStateTracker::GetLastLaunchedApp(), CAST_BUILD_RELEASE,
CAST_BUILD_INCREMENTAL, "", /* reason */
AppStateTracker::GetStadiaSessionId());
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, std::move(*g_dumpstate_cb)));
} else {
writer.reset(
new MinidumpWriter(&minidump_generator, filename.value(), params));
}
bool success = 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))) {
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(
base::OnceCallback<int(const std::string&)> cb) {
DCHECK(!g_dumpstate_cb);
g_dumpstate_cb =
new base::OnceCallback<int(const std::string&)>(std::move(cb));
}
} // namespace chromecast