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| author | Benjamin Barenblat <bbaren@google.com> | 2020-09-25 17:10:06 -0400 |
|---|---|---|
| committer | Benjamin Barenblat <bbaren@google.com> | 2020-09-25 17:10:06 -0400 |
| commit | 4e1c98fe594d99494ce26e94a77f0358705f227c (patch) | |
| tree | a07e9daefa3b5acf716ce89fa1a1c9b500fde795 /absl/base/internal/sysinfo.h | |
| parent | 7a1e14d0d29736ba9c2884d0ce81fc0af92f6ab3 (diff) | |
| parent | b56cbdd23834a65682c0b46f367f8679e83bc894 (diff) | |
| download | abseil-4e1c98fe594d99494ce26e94a77f0358705f227c.tar.gz abseil-4e1c98fe594d99494ce26e94a77f0358705f227c.tar.bz2 abseil-4e1c98fe594d99494ce26e94a77f0358705f227c.zip | |
Merge new upstream LTS 20200923
Diffstat (limited to 'absl/base/internal/sysinfo.h')
| -rw-r--r-- | absl/base/internal/sysinfo.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/absl/base/internal/sysinfo.h b/absl/base/internal/sysinfo.h index 7246d5dd..119cf1f0 100644 --- a/absl/base/internal/sysinfo.h +++ b/absl/base/internal/sysinfo.h @@ -30,6 +30,7 @@ #include <cstdint> +#include "absl/base/config.h" #include "absl/base/port.h" namespace absl { @@ -59,6 +60,13 @@ using pid_t = uint32_t; #endif pid_t GetTID(); +// Like GetTID(), but caches the result in thread-local storage in order +// to avoid unnecessary system calls. Note that there are some cases where +// one must call through to GetTID directly, which is why this exists as a +// separate function. For example, GetCachedTID() is not safe to call in +// an asynchronous signal-handling context nor right after a call to fork(). +pid_t GetCachedTID(); + } // namespace base_internal ABSL_NAMESPACE_END } // namespace absl |