Add ___tracy_init_thread function

This function needs to be called for each non-main thread before calling
the `___tracy_alloc_` functions.

Alternative way to achieve this could be initializing the allocator
transparently in the `___tracy_alloc_*` calls.
This commit is contained in:
Simonas Kazlauskas 2020-06-20 04:17:31 +03:00
parent cbcf393332
commit a110b42011
3 changed files with 11 additions and 0 deletions

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@ -81,6 +81,7 @@ struct ___tracy_c_zone_context
// This struct, as visible to user, is immutable, so treat it as if const was declared here.
typedef /*const*/ struct ___tracy_c_zone_context TracyCZoneCtx;
TRACY_API void ___tracy_init_thread(void);
TRACY_API uint64_t ___tracy_alloc_srcloc( uint32_t line, const char* source, const char* function );
TRACY_API uint64_t ___tracy_alloc_srcloc_name( uint32_t line, const char* source, const char* function, const char* name, size_t nameSz );

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@ -3068,6 +3068,13 @@ TRACY_API void ___tracy_emit_message_appinfo( const char* txt, size_t size ) { t
TRACY_API uint64_t ___tracy_alloc_srcloc( uint32_t line, const char* source, const char* function ) { return tracy::Profiler::AllocSourceLocation( line, source, function ); }
TRACY_API uint64_t ___tracy_alloc_srcloc_name( uint32_t line, const char* source, const char* function, const char* name, size_t nameSz ) { return tracy::Profiler::AllocSourceLocation( line, source, function, name, nameSz ); }
// thread_locals are not initialized on thread creation. At least on GNU/Linux. Instead they are
// initialized on their first ODR-use. This means that the allocator is not automagically
// initialized every time a thread is created. As thus, expose to the C API users a simple API to
// call every time they create a thread. Here we can then put all sorts of per-thread
// initialization.
TRACY_API void ___tracy_init_thread(void) { (void)tracy::s_rpmalloc_thread_init; }
#ifdef __cplusplus
}
#endif

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@ -1477,6 +1477,9 @@ couleur=black!5,
logo=\bcbombe
]{Important}
Since you are directly calling the profiler functions here, you will need to take care of manually disabling the code, if the \texttt{TRACY\_ENABLE} macro is not defined.
Additionally, make sure you have called \texttt{\_\_\_tracy\_init\_thread} before calling the
\textttt{alloc} functions for the first time on a new non-main thread.
\end{bclogo}
\subsubsection{Memory profiling}