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add copy_file_range system call wrapper

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Árni Dagur 2019-08-19 23:41:14 +00:00 committed by Rich Felker
parent 6ad514e4e2
commit f76e183111
2 changed files with 9 additions and 0 deletions
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1
include/unistd.h
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@ -188,6 +188,7 @@ char *get_current_dir_name(void);
int syncfs(int);
int euidaccess(const char *, int);
int eaccess(const char *, int);
ssize_t copy_file_range(int, off_t *, int, off_t *, size_t, unsigned);
#endif
#if defined(_LARGEFILE64_SOURCE) || defined(_GNU_SOURCE)

8
src/linux/copy_file_range.c Normal file
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@ -0,0 +1,8 @@
#define _GNU_SOURCE
#include <unistd.h>
#include "syscall.h"
ssize_t copy_file_range(int fd_in, off_t *off_in, int fd_out, off_t *off_out, size_t len, unsigned flags)
{
return syscall(SYS_copy_file_range, fd_in, off_in, fd_out, off_out, len, flags);
}