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getpid.c
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1#include <stdio.h>
2#include <sys/io.h>
3
4#include "user/common/syscalls.h"
5
6pid_t getpid(void)
7{
8 pid_t result = _syscall_getpid();
9 if (result == ERR)
10 {
11 errno = _syscall_errno();
12 }
13 return result;
14}
errno
#define errno
Error number variable.
Definition errno.h:27
getpid
pid_t getpid(void)
System call to retrieve the current pid.
Definition getpid.c:6
ERR
#define ERR
Integer error value.
Definition ERR.h:17
pid_t
__UINT64_TYPE__ pid_t
Process Identifier.
Definition pid_t.h:11
_syscall_getpid
static pid_t _syscall_getpid(void)
Definition syscalls.h:123
_syscall_errno
static errno_t _syscall_errno(void)
Definition syscalls.h:118