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Count line of processor in /proc/cpuinfo on linux, that matches #4512

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Count line of processor in /proc/cpuinfo on linux, that matches #4512

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13 changes: 13 additions & 0 deletions programs/util.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1593,6 +1593,7 @@ int UTIL_countCores(int logical)

int siblings = 0;
int cpu_cores = 0;
int procs = 0;
int ratio = 1;

if (cpuinfo == NULL) {
Expand Down Expand Up @@ -1622,6 +1623,15 @@ int UTIL_countCores(int logical)

cpu_cores = atoi(sep + 1);
}
if (strncmp(buff, "processor", 9) == 0) {
const char* const sep = strchr(buff, ':');
if (sep == NULL || *sep == '\0') {
/* formatting was broken? */
goto failed;
}

procs++;
}
} else if (ferror(cpuinfo)) {
/* fall back on the sysconf value */
goto failed;
Expand All @@ -1633,6 +1643,9 @@ int UTIL_countCores(int logical)
if (ratio && numCores > ratio && !logical) {
numCores = numCores / ratio;
}
if (procs) {
numCores = procs;
}

failed:
fclose(cpuinfo);
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