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file on [!RTLD_STAT64]. * sysdeps/mach/hurd/fxstat64.c: Likewise. * sysdeps/mach/hurd/tmpfile.c (tmpfile64): Define as alias of tmpfile. (__fdopen): Use INTUSE. * sysdeps/mach/hurd/tmpfile64.c: New file, empty placeholder. * stdio-common/tmpfile64.c: File removed. * sysdeps/generic/tmpfile64.c: New file. * sysdeps/generic/tmpfile.c (GEN_THIS): New macro, define to __GT_FILE if not already defined. (tmpfile): Use it in place of __GT_FILE. * include/unistd.h: Declare __chown_internal. * sysdeps/mach/hurd/sendfile64.c (sendfile64): Do real work here. * sysdeps/mach/hurd/sendfile.c (sendfile): Call that. 2002-06-09 Roland McGrath <roland@frob.com> Update to new Hurd RPC interfaces supporting 64-bit file sizes. * sysdeps/mach/hurd/configure.in: Check for <hurd/version.h> with value of HURD_INTERFACE_VERSION >= 20020609. * sysdeps/mach/hurd/configure: Regenerated. * shlib-versions (.*-.*-gnu-gnu.*): Set libhurduser=0.3. * sysdeps/mach/hurd/xstatconv.c (xstat64_conv): Rewritten to convert a struct stat64 into a struct stat and return 0 or -1 with errno set to EOVERFLOW. * sysdeps/mach/hurd/statfsconv.c (statfs64_conv): Likewise for struct statfs64 to struct statfs. * sysdeps/mach/hurd/xstat.c (__xstat): Use converter and call ... * sysdeps/mach/hurd/xstat64.c (__xstat64): ... this, real work here. * sysdeps/mach/hurd/fxstat.c (__fxstat): Likewise. * sysdeps/mach/hurd/fxstat64.c (__fxstat64): Likewise. * sysdeps/mach/hurd/lxstat.c (__lxstat): Likewise. * sysdeps/mach/hurd/lxstat64.c (__lxstat64): Likewise. * sysdeps/mach/hurd/statfs.c (__statfs): Likewise. * sysdeps/mach/hurd/statfs64.c (__statfs64): Likewise. * sysdeps/mach/hurd/fstatfs.c (__fstatfs): Likewise. * sysdeps/mach/hurd/fstatfs64.c (__fstatfs64): Likewise. * sysdeps/mach/hurd/pwrite64.c (__libc_pwrite64): Do real work here. * sysdeps/mach/hurd/pwrite.c (__libc_pwrite): Call that. * sysdeps/mach/hurd/pread64.c (__libc_pread64): Do real work here. * sysdeps/mach/hurd/pread.c (__libc_pread): Call that. * sysdeps/mach/hurd/lseek64.c (__libc_lseek64): Do real work here. * sysdeps/mach/hurd/lseek.c (__libc_lseek): Call that. * sysdeps/mach/hurd/readdir64.c (__readdir64): Do real work here. * sysdeps/mach/hurd/readdir.c (__readdir): Call that. * sysdeps/mach/hurd/readdir64_r.c (__readdir64_r): Do real work here. * sysdeps/mach/hurd/readdir_r.c (__readdir64_r): Call that. * hurd/lookup-retry.c (__hurd_file_name_lookup_retry): Use struct stat64 for io_stat argument. * sysdeps/mach/hurd/readlink.c (__readlink): Likewise. * hurd/fopenport.c (seekio): Remove EOVERFLOW check, pass POS directly to io_seek. * hurd/fd-read.c (_hurd_fd_read): Use loff_t for OFFSET argument. * hurd/fd-write.c (_hurd_fd_write): Likewise. * hurd/hurd/fd.h: Update decls. * sysdeps/mach/hurd/getcwd.c (_hurd_canonicalize_directory_name_internal): Use ino64_t and struct dirent64. * sysdeps/mach/hurd/dl-sysdep.c (open_file): Use struct stat64. (__xstat): Renamed to __xstat64, use struct stat64 for argument. (__fxstat): Renamed to __fxstat64, use struct stat64 for argument. (__lseek): Renamed to __libc_lseek64, use off64_t for argument. 2002-06-08 Roland McGrath <roland@frob.com> * sysdeps/mach/hurd/dirstream.h (struct __dirstream): Use size_t instead of unsigned long int for __allocation and __size members. 2002-05-19 Ulrich Drepper <drepper@redhat.com>
61 lines
2.1 KiB
C
61 lines
2.1 KiB
C
/* sendfile -- copy data directly from one file descriptor to another
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Copyright (C) 2002 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <sys/sendfile.h>
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#include <hurd.h>
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#include <hurd/fd.h>
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#include <sys/mman.h>
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/* Send COUNT bytes from file associated with IN_FD starting at OFFSET to
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descriptor OUT_FD. */
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ssize_t
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sendfile64 (int out_fd, int in_fd, off64_t *offset, size_t count)
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{
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/* We just do a vanilla io_read followed by a vanilla io_write here.
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In theory the IN_FD filesystem can return us out-of-line data that
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we then send out-of-line to the OUT_FD filesystem and no copying
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takes place until those pages need to be flushed or packaged by
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that filesystem (e.g. packetized by a network socket). However,
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we momentarily consume COUNT bytes of our local address space,
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which might blow if it's huge or address space is real tight. */
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char *data = 0;
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size_t datalen = 0;
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error_t err = HURD_DPORT_USE (in_fd,
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__io_read (port, &data, &datalen,
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offset ? *offset : (off_t) -1,
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count));
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if (err == 0)
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{
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size_t nwrote;
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if (datalen == 0)
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return 0;
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err = HURD_DPORT_USE (out_fd, __io_write (port, data, datalen,
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(off_t) -1, &nwrote));
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munmap (data, datalen);
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if (err == 0)
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{
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if (offset)
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*offset += datalen;
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return nwrote;
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}
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}
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return __hurd_fail (err);
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}
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