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- /*
- * Copyright 2019 Google LLC
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
- #ifndef SkThreadAnnotations_DEFINED
- #define SkThreadAnnotations_DEFINED
- // The bulk of this code is cribbed from:
- // http://clang.llvm.org/docs/ThreadSafetyAnalysis.html
- #if defined(__clang__) && (!defined(SWIG))
- #define SK_THREAD_ANNOTATION_ATTRIBUTE(x) __attribute__((x))
- #else
- #define SK_THREAD_ANNOTATION_ATTRIBUTE(x) // no-op
- #endif
- #define SK_CAPABILITY(x) \
- SK_THREAD_ANNOTATION_ATTRIBUTE(capability(x))
- #define SK_SCOPED_CAPABILITY \
- SK_THREAD_ANNOTATION_ATTRIBUTE(scoped_lockable)
- #define SK_GUARDED_BY(x) \
- SK_THREAD_ANNOTATION_ATTRIBUTE(guarded_by(x))
- #define SK_PT_GUARDED_BY(x) \
- SK_THREAD_ANNOTATION_ATTRIBUTE(pt_guarded_by(x))
- #define SK_ACQUIRED_BEFORE(...) \
- SK_THREAD_ANNOTATION_ATTRIBUTE(acquired_before(__VA_ARGS__))
- #define SK_ACQUIRED_AFTER(...) \
- SK_THREAD_ANNOTATION_ATTRIBUTE(acquired_after(__VA_ARGS__))
- #define SK_REQUIRES(...) \
- SK_THREAD_ANNOTATION_ATTRIBUTE(requires_capability(__VA_ARGS__))
- #define SK_REQUIRES_SHARED(...) \
- SK_THREAD_ANNOTATION_ATTRIBUTE(requires_shared_capability(__VA_ARGS__))
- #define SK_ACQUIRE(...) \
- SK_THREAD_ANNOTATION_ATTRIBUTE(acquire_capability(__VA_ARGS__))
- #define SK_ACQUIRE_SHARED(...) \
- SK_THREAD_ANNOTATION_ATTRIBUTE(acquire_shared_capability(__VA_ARGS__))
- // Would be SK_RELEASE, but that is already in use by SkPostConfig.
- #define SK_RELEASE_CAPABILITY(...) \
- SK_THREAD_ANNOTATION_ATTRIBUTE(release_capability(__VA_ARGS__))
- // For symmetry with SK_RELEASE_CAPABILITY.
- #define SK_RELEASE_SHARED_CAPABILITY(...) \
- SK_THREAD_ANNOTATION_ATTRIBUTE(release_shared_capability(__VA_ARGS__))
- #define SK_TRY_ACQUIRE(...) \
- SK_THREAD_ANNOTATION_ATTRIBUTE(try_acquire_capability(__VA_ARGS__))
- #define SK_TRY_ACQUIRE_SHARED(...) \
- SK_THREAD_ANNOTATION_ATTRIBUTE(try_acquire_shared_capability(__VA_ARGS__))
- #define SK_EXCLUDES(...) \
- SK_THREAD_ANNOTATION_ATTRIBUTE(locks_excluded(__VA_ARGS__))
- #define SK_ASSERT_CAPABILITY(x) \
- SK_THREAD_ANNOTATION_ATTRIBUTE(assert_capability(x))
- #define SK_ASSERT_SHARED_CAPABILITY(x) \
- SK_THREAD_ANNOTATION_ATTRIBUTE(assert_shared_capability(x))
- #define SK_RETURN_CAPABILITY(x) \
- SK_THREAD_ANNOTATION_ATTRIBUTE(lock_returned(x))
- #define SK_NO_THREAD_SAFETY_ANALYSIS \
- SK_THREAD_ANNOTATION_ATTRIBUTE(no_thread_safety_analysis)
- #endif // SkThreadAnnotations_DEFINED
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