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[/] [or1k/] [trunk/] [newlib/] [newlib/] [libc/] [reent/] [writer.c] - Blame information for rev 1765

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1 39 lampret
/* Reentrant versions of write system call. */
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#include <reent.h>
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#include <unistd.h>
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#include <_syslist.h>
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/* Some targets provides their own versions of this functions.  Those
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   targets should define REENTRANT_SYSCALLS_PROVIDED in TARGET_CFLAGS.  */
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#ifdef _REENT_ONLY
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#ifndef REENTRANT_SYSCALLS_PROVIDED
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#define REENTRANT_SYSCALLS_PROVIDED
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#endif
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#endif
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#ifndef REENTRANT_SYSCALLS_PROVIDED
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/* We use the errno variable used by the system dependent layer.  */
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#undef errno
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extern int errno;
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/*
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FUNCTION
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        <<_write_r>>---Reentrant version of write
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INDEX
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        _write_r
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ANSI_SYNOPSIS
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        #include <reent.h>
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        long _write_r(struct _reent *<[ptr]>,
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                      int <[fd]>, const void *<[buf]>, size_t <[cnt]>);
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TRAD_SYNOPSIS
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        #include <reent.h>
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        long _write_r(<[ptr]>, <[fd]>, <[buf]>, <[cnt]>)
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        struct _reent *<[ptr]>;
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        int <[fd]>;
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        char *<[buf]>;
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        size_t <[cnt]>;
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DESCRIPTION
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        This is a reentrant version of <<write>>.  It
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        takes a pointer to the global data block, which holds
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        <<errno>>.
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*/
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long
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_write_r (ptr, fd, buf, cnt)
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     struct _reent *ptr;
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     int fd;
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     _CONST _PTR buf;
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     size_t cnt;
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{
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  long ret;
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  errno = 0;
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  if ((ret = _write (fd, buf, cnt)) == -1 && errno != 0)
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    ptr->_errno = errno;
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  return ret;
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}
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#endif /* ! defined (REENTRANT_SYSCALLS_PROVIDED) */

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