mirror of
https://github.com/c3lang/c3c.git
synced 2026-02-27 20:11:17 +00:00
65bea1cb2d
* lib/std/collections: fix tab indentation Signed-off-by: Pierre Curto <pierre.curto@gmail.com> * lib/std/threads: add ThreadPool Signed-off-by: Pierre Curto <pierre.curto@gmail.com> * ats/lib/threads: add num_cpu() Signed-off-by: Pierre Curto <pierre.curto@gmail.com> --------- Signed-off-by: Pierre Curto <pierre.curto@gmail.com>
69 lines
2.3 KiB
C
69 lines
2.3 KiB
C
// https://www.cprogramming.com/snippets/source-code/find-the-number-of-cpu-cores-for-windows-mac-or-linux
|
|
|
|
module std::thread::cpu @if(env::DARWIN);
|
|
import libc;
|
|
|
|
const CTL_UNSPEC = 0; /* unused */
|
|
const CTL_KERN = 1; /* "high kernel": proc, limits */
|
|
const CTL_VM = 2; /* virtual memory */
|
|
const CTL_VFS = 3; /* file system, mount type is next */
|
|
const CTL_NET = 4; /* network, see socket.h */
|
|
const CTL_DEBUG = 5; /* debugging parameters */
|
|
const CTL_HW = 6; /* generic cpu/io */
|
|
const CTL_MACHDEP = 7; /* machine dependent */
|
|
const CTL_USER = 8; /* user-level */
|
|
const CTL_MAXID = 9; /* number of valid top-level ids */
|
|
|
|
const HW_MACHINE = 1; /* string: machine class */
|
|
const HW_MODEL = 2; /* string: specific machine model */
|
|
const HW_NCPU = 3; /* int: number of cpus */
|
|
const HW_BYTEORDER = 4; /* int: machine byte order */
|
|
const HW_PHYSMEM = 5; /* int: total memory */
|
|
const HW_USERMEM = 6; /* int: non-kernel memory */
|
|
const HW_PAGESIZE = 7; /* int: software page size */
|
|
const HW_DISKNAMES = 8; /* strings: disk drive names */
|
|
const HW_DISKSTATS = 9; /* struct: diskstats[] */
|
|
const HW_EPOCH = 10; /* int: 0 for Legacy, else NewWorld */
|
|
const HW_FLOATINGPT = 11; /* int: has HW floating point? */
|
|
const HW_MACHINE_ARCH = 12; /* string: machine architecture */
|
|
const HW_VECTORUNIT = 13; /* int: has HW vector unit? */
|
|
const HW_BUS_FREQ = 14; /* int: Bus Frequency */
|
|
const HW_CPU_FREQ = 15; /* int: CPU Frequency */
|
|
const HW_CACHELINE = 16; /* int: Cache Line Size in Bytes */
|
|
const HW_L1ICACHESIZE = 17; /* int: L1 I Cache Size in Bytes */
|
|
const HW_L1DCACHESIZE = 18; /* int: L1 D Cache Size in Bytes */
|
|
const HW_L2SETTINGS = 19; /* int: L2 Cache Settings */
|
|
const HW_L2CACHESIZE = 20; /* int: L2 Cache Size in Bytes */
|
|
const HW_L3SETTINGS = 21; /* int: L3 Cache Settings */
|
|
const HW_L3CACHESIZE = 22; /* int: L3 Cache Size in Bytes */
|
|
const HW_MAXID = 23; /* number of valid hw ids */
|
|
|
|
fn uint native_cpu()
|
|
{
|
|
int[2] nm;
|
|
usz len = 4;
|
|
uint count;
|
|
|
|
nm = { CTL_HW, HW_NCPU };
|
|
libc::sysctl(&nm, 2, &count, &len, null, 0);
|
|
if (count < 1) count = 1;
|
|
return count;
|
|
}
|
|
|
|
module std::thread::cpu @if(env::LINUX);
|
|
import libc;
|
|
|
|
fn uint native_cpu()
|
|
{
|
|
return libc::get_nprocs_conf();
|
|
}
|
|
|
|
module std::thread::cpu @if(env::WIN32);
|
|
import libc;
|
|
|
|
fn uint native_cpu()
|
|
{
|
|
SystemInfo info;
|
|
libc::get_system_info(&info);
|
|
return info.dwNumberOfProcessors;
|
|
} |