mirror of https://github.com/xzeldon/htop.git
72 lines
2.0 KiB
C
72 lines
2.0 KiB
C
/*
|
|
htop - darwin/PlatformHelpers.c
|
|
(C) 2018 Pierre Malhaire, 2020-2021 htop dev team, 2021 Alexander Momchilov
|
|
Released under the GNU GPLv2+, see the COPYING file
|
|
in the source distribution for its full text.
|
|
*/
|
|
|
|
#include "darwin/PlatformHelpers.h"
|
|
|
|
#include <errno.h>
|
|
#include <unistd.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <sys/sysctl.h>
|
|
|
|
#include "CRT.h"
|
|
|
|
#ifdef HAVE_MACH_MACH_TIME_H
|
|
#include <mach/mach_time.h>
|
|
#endif
|
|
|
|
|
|
void Platform_GetKernelVersion(KernelVersion* k) {
|
|
static KernelVersion cachedKernelVersion;
|
|
|
|
if (!cachedKernelVersion.major) {
|
|
// just in case it fails someday
|
|
cachedKernelVersion = (KernelVersion) { -1, -1, -1 };
|
|
char str[256] = {0};
|
|
size_t size = sizeof(str);
|
|
int ret = sysctlbyname("kern.osrelease", str, &size, NULL, 0);
|
|
if (ret == 0) {
|
|
sscanf(str, "%hd.%hd.%hd", &cachedKernelVersion.major, &cachedKernelVersion.minor, &cachedKernelVersion.patch);
|
|
}
|
|
}
|
|
memcpy(k, &cachedKernelVersion, sizeof(cachedKernelVersion));
|
|
}
|
|
|
|
int Platform_CompareKernelVersion(KernelVersion v) {
|
|
struct KernelVersion actualVersion;
|
|
Platform_GetKernelVersion(&actualVersion);
|
|
|
|
if (actualVersion.major != v.major) {
|
|
return actualVersion.major - v.major;
|
|
}
|
|
if (actualVersion.minor != v.minor) {
|
|
return actualVersion.minor - v.minor;
|
|
}
|
|
if (actualVersion.patch != v.patch) {
|
|
return actualVersion.patch - v.patch;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
bool Platform_KernelVersionIsBetween(KernelVersion lowerBound, KernelVersion upperBound) {
|
|
return 0 <= Platform_CompareKernelVersion(lowerBound)
|
|
&& Platform_CompareKernelVersion(upperBound) < 0;
|
|
}
|
|
|
|
double Platform_calculateNanosecondsPerMachTick() {
|
|
// Check if we can determine the timebase used on this system.
|
|
// If the API is unavailable assume we get our timebase in nanoseconds.
|
|
#ifdef HAVE_MACH_TIMEBASE_INFO
|
|
mach_timebase_info_data_t info;
|
|
mach_timebase_info(&info);
|
|
return (double)info.numer / (double)info.denom;
|
|
#else
|
|
return 1.0;
|
|
#endif
|
|
}
|