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perf: cache the result of thread_current_id() (#4425)

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Charles Kerr
2022-12-20 14:59:02 -06:00
committed by GitHub
parent ebc93788ce
commit 1e734f36b1
1 changed files with 2 additions and 1 deletions
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3
libtransmission/session-thread.cc
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@@ -107,7 +107,8 @@ int cond_wait(void* vcond, void* vlock, struct timeval const* tv)
unsigned long thread_current_id() unsigned long thread_current_id()
{ {
return std::hash<std::thread::id>()(std::this_thread::get_id()); thread_local auto const hashed = std::hash<std::thread::id>()(std::this_thread::get_id());
return hashed;
} }
void initEvthreadsOnce() void initEvthreadsOnce()