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write.c
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1#include <stdarg.h>
2#include <stdio.h>
3#include <stdlib.h>
4#include <sys/io.h>
5
6#include "common/print.h"
7#include "user/common/syscalls.h"
8
9uint64_t write(fd_t fd, const void* buffer, uint64_t count)
10{
11 uint64_t result = _syscall_write(fd, buffer, count);
12 if (result == ERR)
13 {
14 errno = _syscall_errno();
15 }
16 return result;
17}
errno
#define errno
Error number variable.
Definition errno.h:27
write
uint64_t write(fd_t fd, const void *buffer, uint64_t count)
System call for writing to files.
Definition write.c:9
ERR
#define ERR
Integer error value.
Definition ERR.h:17
fd_t
__UINT64_TYPE__ fd_t
A file descriptor.
Definition fd_t.h:12
buffer
EFI_PHYSICAL_ADDRESS buffer
Definition mem.c:15
count
static atomic_long count
Definition main.c:9
_syscall_write
static uint64_t _syscall_write(fd_t fd, const void *buffer, uint64_t count)
Definition syscalls.h:163
_syscall_errno
static errno_t _syscall_errno(void)
Definition syscalls.h:118
uint64_t
__UINT64_TYPE__ uint64_t
Definition stdint.h:17