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only write SysTime::used if fscanf succeeds

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This commit is contained in:
Graydon Hoare 2020-06-03 11:11:47 -07:00
parent 93b7b5a8e7
commit 28a29d071f
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GPG Key ID: 69824B014EE65219
1 changed files with 5 additions and 2 deletions
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7
client/TracySysTime.cpp
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@ -47,9 +47,12 @@ void SysTime::ReadTimes()
FILE* f = fopen( "/proc/stat", "r" );
if( f )
{
fscanf( f, "cpu %" PRIu64 " %" PRIu64 " %" PRIu64" %" PRIu64, &user, &nice, &system, &idle );
int read = fscanf( f, "cpu %" PRIu64 " %" PRIu64 " %" PRIu64" %" PRIu64, &user, &nice, &system, &idle );
fclose( f );
used = user + nice + system;
if (read == 4)
{
used = user + nice + system;
}
}
}