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Reduce memory requirements of allocated call stacks.

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This commit is contained in:
Bartosz Taudul
2020-07-05 17:33:29 +02:00
parent f718761905
commit 384e2e3fa1
4 changed files with 25 additions and 22 deletions
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TracyLua.hpp
+12 -10
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@@ -150,9 +150,9 @@ static tracy_force_inline void SendLuaCallstack( lua_State* L, uint32_t depth )
const char* func[64];
uint32_t fsz[64];
uint32_t ssz[64];
uint32_t spaceNeeded = 4; // cnt
uint16_t spaceNeeded = 2; // cnt
uint32_t cnt;
uint8_t cnt;
for( cnt=0; cnt<depth; cnt++ )
{
if( lua_getstack( L, cnt+1, dbg+cnt ) == 0 ) break;
@@ -162,22 +162,24 @@ static tracy_force_inline void SendLuaCallstack( lua_State* L, uint32_t depth )
ssz[cnt] = uint32_t( strlen( dbg[cnt].source ) );
spaceNeeded += fsz[cnt] + ssz[cnt];
}
spaceNeeded += cnt * ( 4 + 4 + 4 ); // source line, function string length, source string length
spaceNeeded += cnt * ( 4 + 2 + 2 ); // source line, function string length, source string length
auto ptr = (char*)tracy_malloc( spaceNeeded + 4 );
auto ptr = (char*)tracy_malloc( spaceNeeded + 2 );
auto dst = ptr;
memcpy( dst, &spaceNeeded, 4 ); dst += 4;
memcpy( dst, &cnt, 4 ); dst += 4;
for( uint32_t i=0; i<cnt; i++ )
memcpy( dst, &spaceNeeded, 2 ); dst += 2;
memcpy( dst, &cnt, 1 ); dst++;
for( uint8_t i=0; i<cnt; i++ )
{
const uint32_t line = dbg[i].currentline;
memcpy( dst, &line, 4 ); dst += 4;
memcpy( dst, fsz+i, 4 ); dst += 4;
assert( fsz[i] <= std::numeric_limits<uint16_t>::max() );
memcpy( dst, fsz+i, 2 ); dst += 2;
memcpy( dst, func[i], fsz[i] ); dst += fsz[i];
memcpy( dst, ssz+i, 4 ); dst += 4;
assert( ssz[i] <= std::numeric_limits<uint16_t>::max() );
memcpy( dst, ssz+i, 2 ); dst += 2;
memcpy( dst, dbg[i].source, ssz[i] ), dst += ssz[i];
}
assert( dst - ptr == spaceNeeded + 4 );
assert( dst - ptr == spaceNeeded + 2 );
TracyLfqPrepare( QueueType::CallstackAlloc );
MemWrite( &item->callstackAlloc.ptr, (uint64_t)ptr );