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#include "linux_version.h"
#include <util/generic/yexception.h>
#include <util/system/platform.h>
#ifdef _linux_
# include <sys/utsname.h>
#endif
namespace NYql {
std::tuple<int, int, int> DetectLinuxKernelVersion3() {
#ifdef _linux_
// see https://github.com/torvalds/linux/blob/master/Makefile
// version is composed as follows:
// VERSION = 4
// PATCHLEVEL = 18
// SUBLEVEL = 0
// EXTRAVERSION = -rc4
// KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
utsname buf = {};
if (uname(&buf)) {
ythrow TSystemError() << "uname call failed";
}
int v = 0;
int p = 0;
int s = 0;
if (sscanf(buf.release, "%d.%d.%d", &v, &p, &s) != 3) {
ythrow yexception() << "Failed to parse linux kernel version " << buf.release;
}
return std::make_tuple(v, p, s);
#else
return {};
#endif
}
std::pair<int, int> DetectLinuxKernelVersion2() {
auto v = DetectLinuxKernelVersion3();
return std::make_pair(std::get<0>(v), std::get<1>(v));
}
bool IsLinuxKernelBelow4_3() {
return DetectLinuxKernelVersion2() < std::make_pair(4, 3);
}
}
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