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Remove one level of indirection in FileWrite.

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This commit is contained in:
Bartosz Taudul 2018-04-30 02:29:05 +02:00
parent fd46651c32
commit b1a440647d
1 changed files with 9 additions and 7 deletions
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16
server/TracyFileWrite.hpp
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@ -47,15 +47,16 @@ private:
FileWrite( FILE* f ) FileWrite( FILE* f )
: m_stream( LZ4_createStream() ) : m_stream( LZ4_createStream() )
, m_file( f ) , m_file( f )
, m_buf( m_bufData[0] )
, m_second( m_bufData[1] )
, m_offset( 0 ) , m_offset( 0 )
, m_active( 0 )
{ {
fwrite( Lz4Header, 1, sizeof( Lz4Header ), m_file ); fwrite( Lz4Header, 1, sizeof( Lz4Header ), m_file );
} }
tracy_force_inline void WriteSmall( const void* ptr, size_t size ) tracy_force_inline void WriteSmall( const void* ptr, size_t size )
{ {
memcpy( m_buf[m_active] + m_offset, ptr, size ); memcpy( m_buf + m_offset, ptr, size );
m_offset += size; m_offset += size;
} }
@ -65,7 +66,7 @@ private:
while( size > 0 ) while( size > 0 )
{ {
const auto sz = std::min( size, BufSize - m_offset ); const auto sz = std::min( size, BufSize - m_offset );
memcpy( m_buf[m_active] + m_offset, src, sz ); memcpy( m_buf + m_offset, src, sz );
m_offset += sz; m_offset += sz;
src += sz; src += sz;
size -= sz; size -= sz;
@ -80,11 +81,11 @@ private:
void WriteLz4Block() void WriteLz4Block()
{ {
char lz4[LZ4Size]; char lz4[LZ4Size];
const uint32_t sz = LZ4_compress_fast_continue( m_stream, m_buf[m_active], lz4, m_offset, LZ4Size, 1 ); const uint32_t sz = LZ4_compress_fast_continue( m_stream, m_buf, lz4, m_offset, LZ4Size, 1 );
fwrite( &sz, 1, sizeof( sz ), m_file ); fwrite( &sz, 1, sizeof( sz ), m_file );
fwrite( lz4, 1, sz, m_file ); fwrite( lz4, 1, sz, m_file );
m_offset = 0; m_offset = 0;
m_active = 1 - m_active; std::swap( m_buf, m_second );
} }
enum { BufSize = 64 * 1024 }; enum { BufSize = 64 * 1024 };
@ -92,9 +93,10 @@ private:
LZ4_stream_t* m_stream; LZ4_stream_t* m_stream;
FILE* m_file; FILE* m_file;
char m_buf[2][BufSize]; char m_bufData[2][BufSize];
char* m_buf;
char* m_second;
size_t m_offset; size_t m_offset;
uint8_t m_active;
}; };
} }