Files
fastfetch/src/detection/cpuusage/cpuusage_linux.c
T
2023-10-10 18:46:59 +08:00

38 lines
1.2 KiB
C

#include "fastfetch.h"
#include "detection/cpuusage/cpuusage.h"
#include "common/io/io.h"
#include <stdio.h>
#include <inttypes.h>
const char* ffGetCpuUsageInfo(FFlist* cpuTimes)
{
FF_AUTO_CLOSE_FILE FILE* procStat = fopen("/proc/stat", "r");
if(procStat == NULL)
{
#ifdef __ANDROID__
return "Accessing \"/proc/stat\" is restricted on Android O+";
#else
return "fopen(\"""/proc/stat\", \"r\") == NULL";
#endif
}
// Skip first line
if (fscanf(procStat, "cpu%*[^\n]\n") < 0)
return "fscanf() first line failed";
uint64_t user = 0, nice = 0, system = 0, idle = 0, iowait = 0, irq = 0, softirq = 0;
while (fscanf(procStat, "cpu%*d%" PRIu64 "%" PRIu64 "%" PRIu64 "%" PRIu64 "%" PRIu64 "%" PRIu64 "%" PRIu64 "%*[^\n]\n", &user, &nice, &system, &idle, &iowait, &irq, &softirq) == 7)
{
uint64_t inUse = user + nice + system;
uint64_t total = inUse + idle + iowait + irq + softirq;
FFCpuUsageInfo* info = (FFCpuUsageInfo*) ffListAdd(cpuTimes);
*info = (FFCpuUsageInfo) {
.inUseAll = (uint64_t)inUse,
.totalAll = (uint64_t)total,
};
}
return NULL;
}