diff options
Diffstat (limited to 'src/google/protobuf/stubs/common.h')
| -rw-r--r-- | src/google/protobuf/stubs/common.h | 31 |
1 files changed, 29 insertions, 2 deletions
diff --git a/src/google/protobuf/stubs/common.h b/src/google/protobuf/stubs/common.h index 3f002373..848ec3ab 100644 --- a/src/google/protobuf/stubs/common.h +++ b/src/google/protobuf/stubs/common.h @@ -171,7 +171,13 @@ static const int64 kint64min = -kint64max - 1; static const uint32 kuint32max = 0xFFFFFFFFu; static const uint64 kuint64max = GOOGLE_ULONGLONG(0xFFFFFFFFFFFFFFFF); -#undef GOOGLE_ATTRIBUTE_ALWAYS_INLINE +// ------------------------------------------------------------------- +// Annotations: Some parts of the code have been annotated in ways that might +// be useful to some compilers or tools, but are not supported universally. +// You can #define these annotations yourself if the default implementation +// is not right for you. + +#ifndef GOOGLE_ATTRIBUTE_ALWAYS_INLINE #if defined(__GNUC__) && (__GNUC__ > 3 ||(__GNUC__ == 3 && __GNUC_MINOR__ >= 1)) // For functions we want to force inline. // Introduced in gcc 3.1. @@ -180,14 +186,35 @@ static const uint64 kuint64max = GOOGLE_ULONGLONG(0xFFFFFFFFFFFFFFFF); // Other compilers will have to figure it out for themselves. #define GOOGLE_ATTRIBUTE_ALWAYS_INLINE #endif +#endif -#undef GOOGLE_ATTRIBUTE_DEPRECATED +#ifndef GOOGLE_ATTRIBUTE_DEPRECATED #ifdef __GNUC__ // If the method/variable/type is used anywhere, produce a warning. #define GOOGLE_ATTRIBUTE_DEPRECATED __attribute__((deprecated)) #else #define GOOGLE_ATTRIBUTE_DEPRECATED #endif +#endif + +#ifndef GOOGLE_PREDICT_TRUE +#ifdef __GNUC__ +// Provided at least since GCC 3.0. +#define GOOGLE_PREDICT_TRUE(x) (__builtin_expect(!!(x), 1)) +#else +#define GOOGLE_PREDICT_TRUE +#endif +#endif + +// Delimits a block of code which may write to memory which is simultaneously +// written by other threads, but which has been determined to be thread-safe +// (e.g. because it is an idempotent write). +#ifndef GOOGLE_SAFE_CONCURRENT_WRITES_BEGIN +#define GOOGLE_SAFE_CONCURRENT_WRITES_BEGIN() +#endif +#ifndef GOOGLE_SAFE_CONCURRENT_WRITES_END +#define GOOGLE_SAFE_CONCURRENT_WRITES_END() +#endif // =================================================================== // from google3/base/basictypes.h |