-/* -*- c-file-style: "linux" -*-
+/*
+ * Socket and pipe I/O utilities used in rsync.
*
- * Copyright (C) 1996-2001 by Andrew Tridgell
- * Copyright (C) Paul Mackerras 1996
- * Copyright (C) 2001, 2002 by Martin Pool <mbp@samba.org>
+ * Copyright (C) 1996-2001 Andrew Tridgell
+ * Copyright (C) 1996 Paul Mackerras
+ * Copyright (C) 2001, 2002 Martin Pool <mbp@samba.org>
+ * Copyright (C) 2003, 2004, 2005, 2006 Wayne Davison
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
*/
-/**
- * @file io.c
- *
- * Socket and pipe I/O utilities used in rsync.
- *
- * rsync provides its own multiplexing system, which is used to send
- * stderr and stdout over a single socket. We need this because
- * stdout normally carries the binary data stream, and stderr all our
- * error messages.
+/* Rsync provides its own multiplexing system, which is used to send
+ * stderr and stdout over a single socket.
*
* For historical reasons this is off during the start of the
* connection, but it's switched on quite early using
- * io_start_multiplex_out() and io_start_multiplex_in().
- **/
+ * io_start_multiplex_out() and io_start_multiplex_in(). */
#include "rsync.h"
int batch_fd = -1;
int batch_gen_fd = -1;
-/**
- * The connection might be dropped at some point; perhaps because the
- * remote instance crashed. Just giving the offset on the stream is
- * not very helpful. So instead we try to make io_phase_name point to
- * something useful.
- *
- * For buffered/multiplexed I/O these names will be somewhat
- * approximate; perhaps for ease of support we would rather make the
- * buffer always flush when a single application-level I/O finishes.
- *
- * @todo Perhaps we want some simple stack functionality, but there's
- * no need to overdo it.
- **/
-const char *io_write_phase = phase_unknown;
-const char *io_read_phase = phase_unknown;
-
/* Ignore an EOF error if non-zero. See whine_about_eof(). */
int kluge_around_eof = 0;
exit_cleanup(RERR_STREAMIO);
}
read_loop(fd, buf, len);
- if (defer_forwarding_messages)
- msg_list_add(&msg2sndr, MSG_DELETED, buf, len);
- else
- io_multiplex_write(MSG_DELETED, buf, len);
+ send_msg(MSG_DELETED, buf, len);
break;
case MSG_SUCCESS:
if (len != 4 || !am_generator) {
read_loop(fd, buf, len);
if (remove_sent_files) {
decrement_active_files(IVAL(buf,0));
- if (defer_forwarding_messages)
- msg_list_add(&msg2sndr, MSG_SUCCESS, buf, len);
- else
- io_multiplex_write(MSG_SUCCESS, buf, len);
+ send_msg(MSG_SUCCESS, buf, len);
}
if (preserve_hard_links)
flist_ndx_push(&hlink_list, IVAL(buf,0));
if (n >= sizeof buf)
n = sizeof buf - 1;
read_loop(fd, buf, n);
- if (am_generator && am_server && defer_forwarding_messages)
- msg_list_add(&msg2sndr, tag, buf, n);
- else
- rwrite((enum logcode)tag, buf, n);
+ rwrite(tag, buf, n);
len -= n;
}
break;
return 1;
}
-void send_msg(enum msgcode code, char *buf, int len)
+int send_msg(enum msgcode code, char *buf, int len)
{
if (msg_fd_out < 0) {
- io_multiplex_write(code, buf, len);
- return;
+ if (!defer_forwarding_messages)
+ return io_multiplex_write(code, buf, len);
+ if (!io_multiplexing_out)
+ return 0;
+ msg_list_add(&msg2sndr, code, buf, len);
+ return 1;
}
msg_list_add(&msg2genr, code, buf, len);
msg2genr_flush(NORMAL_FLUSH);
+ return 1;
}
int get_redo_num(int itemizing, enum logcode code)
static void sleep_for_bwlimit(int bytes_written)
{
static struct timeval prior_tv;
- static long total_written = 0;
+ static long total_written = 0;
struct timeval tv, start_tv;
long elapsed_usec, sleep_usec;
if (!bwlimit_writemax)
return;
- total_written += bytes_written;
+ total_written += bytes_written;
gettimeofday(&start_tv, NULL);
if (prior_tv.tv_sec) {
if (fd == sock_f_out)
close_multiplexing_out();
rsyserr(FERROR, errno,
- "writefd_unbuffered failed to write %ld bytes: phase \"%s\" [%s]",
- (long)len, io_write_phase, who_am_i());
+ "writefd_unbuffered failed to write %ld bytes [%s]",
+ (long)len, who_am_i());
/* If the other side is sending us error messages, try
* to grab any messages they sent before they died. */
while (fd == sock_f_out && io_multiplexing_in) {
writefd(f,b,4);
}
-void write_int_named(int f, int32 x, const char *phase)
-{
- io_write_phase = phase;
- write_int(f, x);
- io_write_phase = phase_unknown;
-}
-
/*
* Note: int64 may actually be a 32-bit type if ./configure couldn't find any
* 64-bit types on this platform.
Matt McCutchen's Web Site / rsync / rsync.git / blobdiff