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Split FileRead::Skip into small and big part.

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This commit is contained in:
Bartosz Taudul 2018-04-30 02:31:03 +02:00
parent b1a440647d
commit b598300186
1 changed files with 23 additions and 18 deletions
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41
server/TracyFileRead.hpp
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@ -42,7 +42,7 @@ public:
} }
} }
void Skip( size_t size ) tracy_force_inline void Skip( size_t size )
{ {
if( size <= BufSize - m_offset ) if( size <= BufSize - m_offset )
{ {
@ -50,23 +50,7 @@ public:
} }
else else
{ {
char m_lz4buf[LZ4Size]; SkipBig( size );
while( size > 0 )
{
if( m_offset == BufSize )
{
std::swap( m_buf, m_second );
m_offset = 0;
uint32_t sz;
fread( &sz, 1, sizeof( sz ), m_file );
fread( m_lz4buf, 1, sz, m_file );
m_lastBlock = LZ4_decompress_safe_continue( m_stream, m_lz4buf, m_buf, sz, BufSize );
}
const auto sz = std::min( size, BufSize - m_offset );
m_offset += sz;
size -= sz;
}
} }
} }
@ -132,6 +116,27 @@ private:
} }
} }
void SkipBig( size_t size )
{
char m_lz4buf[LZ4Size];
while( size > 0 )
{
if( m_offset == BufSize )
{
std::swap( m_buf, m_second );
m_offset = 0;
uint32_t sz;
fread( &sz, 1, sizeof( sz ), m_file );
fread( m_lz4buf, 1, sz, m_file );
m_lastBlock = LZ4_decompress_safe_continue( m_stream, m_lz4buf, m_buf, sz, BufSize );
}
const auto sz = std::min( size, BufSize - m_offset );
m_offset += sz;
size -= sz;
}
}
enum { BufSize = 64 * 1024 }; enum { BufSize = 64 * 1024 };
enum { LZ4Size = LZ4_COMPRESSBOUND( BufSize ) }; enum { LZ4Size = LZ4_COMPRESSBOUND( BufSize ) };