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Linux: allocate cpuData before reading cpu count.

This commit is contained in:
er-azh 2022-03-26 17:27:36 +04:30
parent 3f0c172a60
commit ba4c67942c
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GPG Key ID: 933E21B9BA43FAAB
1 changed files with 10 additions and 3 deletions
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13
linux/LinuxProcessList.c
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@ -174,16 +174,19 @@ static void LinuxProcessList_updateCPUcount(ProcessList* super) {
LinuxProcessList* this = (LinuxProcessList*) super; LinuxProcessList* this = (LinuxProcessList*) super;
unsigned int existing = 0, active = 0; unsigned int existing = 0, active = 0;
DIR* dir = opendir("/sys/devices/system/cpu"); // Initialize the cpuData array before anything else.
if (!dir) { if (!this->cpuData) {
this->cpuData = xReallocArrayZero(this->cpuData, super->existingCPUs ? (super->existingCPUs + 1) : 0, 2, sizeof(CPUData)); this->cpuData = xReallocArrayZero(this->cpuData, super->existingCPUs ? (super->existingCPUs + 1) : 0, 2, sizeof(CPUData));
this->cpuData[0].online = true; /* average is always "online" */ this->cpuData[0].online = true; /* average is always "online" */
this->cpuData[1].online = true; this->cpuData[1].online = true;
super->activeCPUs = 1; super->activeCPUs = 1;
super->existingCPUs = 1; super->existingCPUs = 1;
return;
} }
DIR* dir = opendir("/sys/devices/system/cpu");
if (!dir)
return;
unsigned int currExisting = super->existingCPUs; unsigned int currExisting = super->existingCPUs;
const struct dirent* entry; const struct dirent* entry;
@ -233,6 +236,10 @@ static void LinuxProcessList_updateCPUcount(ProcessList* super) {
closedir(dir); closedir(dir);
// return if no CPU is found
if (existing < 1)
return;
#ifdef HAVE_SENSORS_SENSORS_H #ifdef HAVE_SENSORS_SENSORS_H
/* When started with offline CPUs, libsensors does not monitor those, /* When started with offline CPUs, libsensors does not monitor those,
* even when they become online. */ * even when they become online. */