Jonathan R. Madsen
99 lines
3.0 KiB
C++
99 lines
3.0 KiB
C++
// MIT License
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//
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// Copyright (c) 2022 Advanced Micro Devices, Inc. All Rights Reserved.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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#pragma once
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#include <cstdio>
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#include <cstdlib>
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#include <cstring>
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#include <iostream>
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#include <string>
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#include <string_view>
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namespace omnitrace
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{
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inline namespace common
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{
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namespace
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{
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inline std::string
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get_env(std::string_view env_id, std::string_view _default)
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{
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if(env_id.empty()) return std::string{ _default };
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char* env_var = ::std::getenv(env_id.data());
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if(env_var) return std::string{ env_var };
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return std::string{ _default };
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}
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inline std::string
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get_env(std::string_view env_id, const char* _default)
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{
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return get_env(env_id, std::string_view{ _default });
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}
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inline int
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get_env(std::string_view env_id, int _default)
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{
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if(env_id.empty()) return _default;
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char* env_var = ::std::getenv(env_id.data());
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if(env_var)
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{
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try
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{
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return std::stoi(env_var);
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} catch(std::exception& _e)
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{
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fprintf(stderr,
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"[omnitrace][get_env] Exception thrown converting getenv(\"%s\") = "
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"%s to integer :: %s. Using default value of %i\n",
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env_id.data(), env_var, _e.what(), _default);
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}
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return _default;
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}
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return _default;
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}
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inline bool
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get_env(std::string_view env_id, bool _default)
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{
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if(env_id.empty()) return _default;
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char* env_var = ::std::getenv(env_id.data());
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if(env_var)
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{
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if(std::string_view{ env_var }.find_first_not_of("0123456789") ==
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std::string_view::npos)
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return static_cast<bool>(std::stoi(env_var));
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else
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{
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for(size_t i = 0; i < strlen(env_var); ++i)
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env_var[i] = tolower(env_var[i]);
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for(const auto& itr : { "off", "false", "no", "n", "f", "0" })
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if(strcmp(env_var, itr) == 0) return false;
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}
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return true;
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}
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return _default;
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}
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} // namespace
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} // namespace common
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} // namespace omnitrace
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