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Proper mmap failure detection.

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This commit is contained in:
Bartosz Taudul 2021-12-04 18:58:17 +01:00
parent 22284d57e7
commit 6a0d233613
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1 changed files with 4 additions and 1 deletions
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5
client/TracyRingBuffer.hpp
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@ -1,3 +1,5 @@
#include <errno.h>
namespace tracy
{
@ -14,8 +16,9 @@ public:
assert( __builtin_popcount( Size ) == 1 );
m_mapSize = Size + pageSize;
auto mapAddr = mmap( nullptr, m_mapSize, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0 );
if( !mapAddr )
if( mapAddr == MAP_FAILED )
{
TracyDebug( "mmap failed: errno %i (%s)\n", errno, strerror( errno ) );
m_fd = 0;
m_metadata = nullptr;
close( fd );