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Use ReadFile and atoi

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This commit is contained in:
Clément Grégoire
2026-04-20 18:05:31 +02:00
parent 8f208d732a
commit cb9ef7814e
1 changed files with 4 additions and 5 deletions
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9
public/client/TracySysTrace.cpp
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@@ -657,16 +657,15 @@ bool SysTraceStart( int64_t& samplingPeriod )
int samplingFrequency = GetSamplingFrequency();
if( samplingFrequency > 0 )
{
FILE* f = fopen( "/proc/sys/kernel/perf_event_max_sample_rate", "r" );
if( f )
const auto maxSampleRateStr = ReadFile( "/proc/sys/kernel/perf_event_max_sample_rate" );
if( maxSampleRateStr )
{
int sysMax;
if( fscanf( f, "%d", &sysMax ) == 1 && samplingFrequency > sysMax )
const int sysMax = atoi( maxSampleRateStr );
if( sysMax > 0 && sysMax < samplingFrequency )
{
TracyDebug( "Requested sampling frequency %d Hz is higher than system maximum of %d Hz, reducing to system maximum.", samplingFrequency, sysMax );
samplingFrequency = sysMax;
}
fclose( f );
}
}
samplingPeriod = SamplingFrequencyToPeriodNs( samplingFrequency );