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- // Copyright (c) 2012 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 "base/debug/crash_logging.h"
- #include "base/strings/string_piece.h"
- #include "build/build_config.h"
- namespace base::debug {
- namespace {
- CrashKeyImplementation* g_crash_key_impl = nullptr;
- } // namespace
- CrashKeyString* AllocateCrashKeyString(const char name[],
- CrashKeySize value_length) {
- if (!g_crash_key_impl)
- return nullptr;
- // TODO(https://crbug.com/1341077): It would be great if the DCHECKs below
- // could also be enabled on Android, but debugging tryjob failures was a bit
- // difficult... :-/
- #if DCHECK_IS_ON() && !BUILDFLAG(IS_ANDROID)
- base::StringPiece name_piece = name;
- // Some `CrashKeyImplementation`s reserve certain characters and disallow
- // using them in crash key names. See also https://crbug.com/1341077.
- DCHECK_EQ(base::StringPiece::npos, name_piece.find(':'))
- << "; name_piece = " << name_piece;
- // Some `CrashKeyImplementation`s support only short crash key names (e.g. see
- // the DCHECK in crash_reporter::internal::CrashKeyStringImpl::Set).
- // Enforcing this restrictions here ensures that crash keys will work for all
- // `CrashKeyStringImpl`s.
- DCHECK_LT(name_piece.size(), 40u);
- #endif
- return g_crash_key_impl->Allocate(name, value_length);
- }
- void SetCrashKeyString(CrashKeyString* crash_key, base::StringPiece value) {
- if (!g_crash_key_impl || !crash_key)
- return;
- g_crash_key_impl->Set(crash_key, value);
- }
- void ClearCrashKeyString(CrashKeyString* crash_key) {
- if (!g_crash_key_impl || !crash_key)
- return;
- g_crash_key_impl->Clear(crash_key);
- }
- void OutputCrashKeysToStream(std::ostream& out) {
- if (!g_crash_key_impl)
- return;
- g_crash_key_impl->OutputCrashKeysToStream(out);
- }
- ScopedCrashKeyString::ScopedCrashKeyString(CrashKeyString* crash_key,
- base::StringPiece value)
- : crash_key_(crash_key) {
- SetCrashKeyString(crash_key_, value);
- }
- ScopedCrashKeyString::ScopedCrashKeyString(ScopedCrashKeyString&& other)
- : crash_key_(std::exchange(other.crash_key_, nullptr)) {}
- ScopedCrashKeyString::~ScopedCrashKeyString() {
- ClearCrashKeyString(crash_key_);
- }
- void SetCrashKeyImplementation(std::unique_ptr<CrashKeyImplementation> impl) {
- delete g_crash_key_impl;
- g_crash_key_impl = impl.release();
- }
- } // namespace base::debug
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