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claim.c
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1#include <errno.h>
2#include <sys/io.h>
3
4#include "user/common/syscalls.h"
5
6fd_t claim(key_t* key)
7{
8 fd_t fd = _syscall_claim(key);
9 if (fd == ERR)
10 {
11 errno = _syscall_errno();
12 return ERR;
13 }
14 return fd;
15}
errno
#define errno
Error number variable.
Definition errno.h:27
claim
fd_t claim(key_t *key)
System call for claiming a shared file descriptor.
Definition claim.c:6
ERR
#define ERR
Integer error value.
Definition ERR.h:17
fd_t
__UINT64_TYPE__ fd_t
A file descriptor.
Definition fd_t.h:12
_syscall_claim
static fd_t _syscall_claim(key_t *key)
Definition syscalls.h:253
_syscall_errno
static errno_t _syscall_errno(void)
Definition syscalls.h:118
key_t
Key type.
Definition io.h:503