blob: dcc2338a75d0cf6ea8108618d132c45e4be6cb46 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
|
//===-- Implementation of sched_getcpucount -------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "src/sched/sched_getcpucount.h"
#include "src/__support/CPP/bit.h"
#include "src/__support/common.h"
#include "src/__support/macros/config.h"
#include "hdr/types/cpu_set_t.h"
#include "hdr/types/size_t.h"
#include <stddef.h>
namespace LIBC_NAMESPACE_DECL {
LLVM_LIBC_FUNCTION(int, __sched_getcpucount,
(size_t cpuset_size, const cpu_set_t *mask)) {
int result = 0;
for (size_t i = 0; i < cpuset_size / sizeof(long); ++i) {
result += cpp::popcount(mask->__mask[i]);
}
return result;
}
} // namespace LIBC_NAMESPACE_DECL
|
