program_name.h (1692B)
1 // 2 // Copyright 2019 The Abseil Authors. 3 // 4 // Licensed under the Apache License, Version 2.0 (the "License"); 5 // you may not use this file except in compliance with the License. 6 // You may obtain a copy of the License at 7 // 8 // https://www.apache.org/licenses/LICENSE-2.0 9 // 10 // Unless required by applicable law or agreed to in writing, software 11 // distributed under the License is distributed on an "AS IS" BASIS, 12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 // See the License for the specific language governing permissions and 14 // limitations under the License. 15 16 #ifndef ABSL_FLAGS_INTERNAL_PROGRAM_NAME_H_ 17 #define ABSL_FLAGS_INTERNAL_PROGRAM_NAME_H_ 18 19 #include <string> 20 21 #include "absl/base/config.h" 22 #include "absl/strings/string_view.h" 23 24 // -------------------------------------------------------------------- 25 // Program name 26 27 namespace absl { 28 ABSL_NAMESPACE_BEGIN 29 namespace flags_internal { 30 31 // Returns program invocation name or "UNKNOWN" if `SetProgramInvocationName()` 32 // is never called. At the moment this is always set to argv[0] as part of 33 // library initialization. 34 std::string ProgramInvocationName(); 35 36 // Returns base name for program invocation name. For example, if 37 // ProgramInvocationName() == "a/b/mybinary" 38 // then 39 // ShortProgramInvocationName() == "mybinary" 40 std::string ShortProgramInvocationName(); 41 42 // Sets program invocation name to a new value. Should only be called once 43 // during program initialization, before any threads are spawned. 44 void SetProgramInvocationName(absl::string_view prog_name_str); 45 46 } // namespace flags_internal 47 ABSL_NAMESPACE_END 48 } // namespace absl 49 50 #endif // ABSL_FLAGS_INTERNAL_PROGRAM_NAME_H_