Add IdentifySamples flag to the protocol.

On Windows there is no way to distinguish callstack data coming from random
sampling and from context switches. Each callstack timestamp has to be matched
against the context switch data in order to decide its origin. This is
obviously non-trivial.

On some other platforms, the origin information may be available right away,
in which case the process of matching against the context switch data, which
possibly includes postponing callstacks for processing in the future, may be
completely omitted.

1 files changed, 2 insertions, 1 deletions

diff --git a/common/TracyProtocol.hpp b/common/TracyProtocol.hpp
index e7ab86ad..1cd46346 100644
--- a/common/TracyProtocol.hpp
+++ b/common/TracyProtocol.hpp
@@ -9,7 +9,7 @@ namespace tracy
 
 constexpr unsigned Lz4CompressBound( unsigned isize ) { return isize + ( isize / 255 ) + 16; }
 
-enum : uint32_t { ProtocolVersion = 53 };
+enum : uint32_t { ProtocolVersion = 54 };
 enum : uint16_t { BroadcastVersion = 2 };
 
 using lz4sz_t = uint32_t;
@@ -86,6 +86,7 @@ struct WelcomeFlag
         IsApple         = 1 << 1,
         CodeTransfer    = 1 << 2,
         CombineSamples  = 1 << 3,
+        IdentifySamples = 1 << 4,
     };
 };