Abseil Common Libraries (C++) (grcp 依赖)
https://abseil.io/
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
53 lines
1.6 KiB
53 lines
1.6 KiB
// |
|
// Copyright 2019 The Abseil Authors. |
|
// |
|
// Licensed under the Apache License, Version 2.0 (the "License"); |
|
// you may not use this file except in compliance with the License. |
|
// You may obtain a copy of the License at |
|
// |
|
// https://www.apache.org/licenses/LICENSE-2.0 |
|
// |
|
// Unless required by applicable law or agreed to in writing, software |
|
// distributed under the License is distributed on an "AS IS" BASIS, |
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
|
// See the License for the specific language governing permissions and |
|
// limitations under the License. |
|
|
|
#include "absl/flags/internal/program_name.h" |
|
|
|
#include <string> |
|
|
|
#include "absl/flags/internal/path_util.h" |
|
#include "absl/synchronization/mutex.h" |
|
|
|
namespace absl { |
|
namespace flags_internal { |
|
|
|
ABSL_CONST_INIT static absl::Mutex program_name_guard(absl::kConstInit); |
|
ABSL_CONST_INIT static std::string* program_name |
|
ABSL_GUARDED_BY(program_name_guard) = nullptr; |
|
|
|
std::string ProgramInvocationName() { |
|
absl::MutexLock l(&program_name_guard); |
|
|
|
return program_name ? *program_name : "UNKNOWN"; |
|
} |
|
|
|
std::string ShortProgramInvocationName() { |
|
absl::MutexLock l(&program_name_guard); |
|
|
|
return program_name ? std::string(flags_internal::Basename(*program_name)) |
|
: "UNKNOWN"; |
|
} |
|
|
|
void SetProgramInvocationName(absl::string_view prog_name_str) { |
|
absl::MutexLock l(&program_name_guard); |
|
|
|
if (!program_name) |
|
program_name = new std::string(prog_name_str); |
|
else |
|
program_name->assign(prog_name_str.data(), prog_name_str.size()); |
|
} |
|
|
|
} // namespace flags_internal |
|
} // namespace absl
|
|
|