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7e74c21873
Change #if DAWN_PLATFORM_XXX to #if DAWN_PLATFORM_IS(XXX) To prevent #ifdef usage and reference without including dawn/common/Platform.h Also change #if DAWN_COMPILER_XXX to # if DAWN_COMPILER_IS(XXX) Bug: dawn:1447 Change-Id: If6c9dab15fd2676f9a087507f5efcceeff468d33 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/92625 Commit-Queue: Shrek Shao <shrekshao@google.com> Reviewed-by: Corentin Wallez <cwallez@chromium.org>
59 lines
2.1 KiB
C++
59 lines
2.1 KiB
C++
// Copyright 2019 The Dawn Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef SRC_DAWN_COMMON_SYSTEMUTILS_H_
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#define SRC_DAWN_COMMON_SYSTEMUTILS_H_
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#include <optional>
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#include <string>
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#include <utility>
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#include "dawn/common/Platform.h"
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const char* GetPathSeparator();
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// Returns a pair of the environment variable's value, and a boolean indicating whether the variable
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// was present.
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std::pair<std::string, bool> GetEnvironmentVar(const char* variableName);
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bool SetEnvironmentVar(const char* variableName, const char* value);
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// Directories are always returned with a trailing path separator.
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// May return std::nullopt if the path is too long, there is no current
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// module (statically linked into executable), or the function is not
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// implemented on the platform.
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std::optional<std::string> GetExecutableDirectory();
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std::optional<std::string> GetModuleDirectory();
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#if DAWN_PLATFORM_IS(MACOS)
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void GetMacOSVersion(int32_t* majorVersion, int32_t* minorVersion = nullptr);
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bool IsMacOSVersionAtLeast(uint32_t majorVersion, uint32_t minorVersion = 0);
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#endif
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class ScopedEnvironmentVar {
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public:
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ScopedEnvironmentVar();
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ScopedEnvironmentVar(const char* variableName, const char* value);
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~ScopedEnvironmentVar();
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ScopedEnvironmentVar(const ScopedEnvironmentVar& rhs) = delete;
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ScopedEnvironmentVar& operator=(const ScopedEnvironmentVar& rhs) = delete;
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bool Set(const char* variableName, const char* value);
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private:
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std::string mName;
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std::pair<std::string, bool> mOriginalValue;
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bool mIsSet = false;
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};
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#endif // SRC_DAWN_COMMON_SYSTEMUTILS_H_
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