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Diffstat (limited to 'newlib/libc/sys/linux/pread64.c')
-rw-r--r-- | newlib/libc/sys/linux/pread64.c | 65 |
1 files changed, 0 insertions, 65 deletions
diff --git a/newlib/libc/sys/linux/pread64.c b/newlib/libc/sys/linux/pread64.c deleted file mode 100644 index c4bdca706..000000000 --- a/newlib/libc/sys/linux/pread64.c +++ /dev/null @@ -1,65 +0,0 @@ -/* -FUNCTION -<<pread64>>---read a large file from specified position - -INDEX - pread64 - -ANSI_SYNOPSIS - #include <unistd.h> - ssize_t pread64(int <[fd]>, void *<[buf]>, size_t <[n]>, loff_t <[off]>); - -TRAD_SYNOPSIS - #include <unistd.h> - ssize_t pread64(<[fd]>, <[buf]>, <[n]>, <[off]>) - int <[fd]>; - void *<[buf]>; - size_t <[n]>; - loff_t <[off]>; - -DESCRIPTION -The <<pread64>> function is similar to <<pread>>. The only difference is -that it operates on large files and so takes a 64-bit offset. Like <<pread>>>, -the file position is unchanged by the function (i.e. the file position -is the same before and after a call to <<pread>>). - -RETURNS -<<pread64>> returns the number of bytes read or <<-1>> if failure occurred. - -PORTABILITY -<<pread64>> is an EL/IX extension. - -Supporting OS subroutine required: <<read>>, <<lseek64>>. -*/ - -#include <_ansi.h> -#include <unistd.h> -#include <reent.h> -#include <machine/weakalias.h> - -ssize_t -_DEFUN (__libc_pread64, (fd, buf, n, off), - int fd _AND - _PTR buf _AND - size_t n _AND - loff_t off) -{ - loff_t cur_pos; - _READ_WRITE_RETURN_TYPE num_read; - - if ((cur_pos = lseek64 (fd, 0, SEEK_CUR)) == (loff_t)-1) - return -1; - - if (lseek64 (fd, off, SEEK_SET) == (loff_t)-1) - return -1; - - num_read = read (fd, buf, n); - - if (lseek64 (fd, cur_pos, SEEK_SET) == (loff_t)-1) - return -1; - - return (ssize_t)num_read; -} -weak_alias(__libc_pread64,pread64); -weak_alias(__libc_pread64,__pread64); - |