* Copyright (C) 1996-2001 Andrew Tridgell
* Copyright (C) 1996 Paul Mackerras
* Copyright (C) 2001, 2002 Martin Pool <mbp@samba.org>
- * Copyright (C) 2003-2008 Wayne Davison
+ * Copyright (C) 2003-2009 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
#include "rsync.h"
#include "ifuncs.h"
+#include "inums.h"
/** If no timeout is specified then use a 60 second select timeout */
#define SELECT_TIMEOUT 60
extern int bwlimit;
extern size_t bwlimit_writemax;
extern int io_timeout;
-extern int allowed_lull;
extern int am_server;
extern int am_daemon;
extern int am_sender;
extern int io_error;
extern int eol_nulls;
extern int flist_eof;
+extern int file_total;
+extern int file_old_total;
extern int list_only;
extern int read_batch;
-extern int csum_length;
extern int protect_args;
extern int checksum_seed;
extern int protocol_version;
extern iconv_t ic_send, ic_recv;
#endif
-const char phase_unknown[] = "unknown";
+int csum_length = SHORT_SUM_LENGTH; /* initial value */
+int allowed_lull = 0;
int ignore_timeout = 0;
int batch_fd = -1;
int msgdone_cnt = 0;
#ifdef ICONV_OPTION
static xbuf iconv_buf = EMPTY_XBUF;
#endif
-static int defer_forwarding_messages = 0, defer_forwarding_keep = 0;
+static int defer_forwarding_messages = 0, keep_defer_forwarding = 0;
static int select_timeout = SELECT_TIMEOUT;
static int active_filecnt = 0;
static OFF_T active_bytecnt = 0;
static void writefd_unbuffered(int fd, const char *buf, size_t len);
static void mplex_write(int fd, enum msgcode code, const char *buf, size_t len, int convert);
-struct flist_ndx_item {
- struct flist_ndx_item *next;
- int ndx;
-};
-
-struct flist_ndx_list {
- struct flist_ndx_item *head, *tail;
-};
-
-static struct flist_ndx_list redo_list, hlink_list;
+static flist_ndx_list redo_list, hlink_list;
struct msg_list_item {
struct msg_list_item *next;
static struct msg_list msg_queue;
-static void flist_ndx_push(struct flist_ndx_list *lp, int ndx)
-{
- struct flist_ndx_item *item;
-
- if (!(item = new(struct flist_ndx_item)))
- out_of_memory("flist_ndx_push");
- item->next = NULL;
- item->ndx = ndx;
- if (lp->tail)
- lp->tail->next = item;
- else
- lp->head = item;
- lp->tail = item;
-}
-
-static int flist_ndx_pop(struct flist_ndx_list *lp)
-{
- struct flist_ndx_item *next;
- int ndx;
-
- if (!lp->head)
- return -1;
-
- ndx = lp->head->ndx;
- next = lp->head->next;
- free(lp->head);
- lp->head = next;
- if (!next)
- lp->tail = NULL;
-
- return ndx;
-}
-
static void got_flist_entry_status(enum festatus status, const char *buf)
{
int ndx = IVAL(buf, 0);
- struct file_list *flist = flist_for_ndx(ndx);
-
- assert(flist != NULL);
+ struct file_list *flist = flist_for_ndx(ndx, "got_flist_entry_status");
if (remove_source_files) {
active_filecnt--;
}
break;
case FES_REDO:
+ if (read_batch) {
+ if (inc_recurse)
+ flist->in_progress++;
+ break;
+ }
if (inc_recurse)
flist->to_redo++;
flist_ndx_push(&redo_list, ndx);
lst->tail = m;
}
+static inline int flush_a_msg(int fd)
+{
+ struct msg_list_item *m = msg_queue.head;
+ int len = IVAL(m->buf, 0) & 0xFFFFFF;
+ int tag = *((uchar*)m->buf+3) - MPLEX_BASE;
+
+ if (!(msg_queue.head = m->next))
+ msg_queue.tail = NULL;
+
+ defer_forwarding_messages++;
+ mplex_write(fd, tag, m->buf + 4, len, m->convert);
+ defer_forwarding_messages--;
+
+ free(m);
+
+ return len;
+}
+
static void msg_flush(void)
{
if (am_generator) {
- while (msg_queue.head && io_multiplexing_out) {
- struct msg_list_item *m = msg_queue.head;
- int len = IVAL(m->buf, 0) & 0xFFFFFF;
- int tag = *((uchar*)m->buf+3) - MPLEX_BASE;
- if (!(msg_queue.head = m->next))
- msg_queue.tail = NULL;
- stats.total_written += len + 4;
- defer_forwarding_messages++;
- mplex_write(sock_f_out, tag, m->buf + 4, len, m->convert);
- defer_forwarding_messages--;
- free(m);
- }
+ while (msg_queue.head && io_multiplexing_out)
+ stats.total_written += flush_a_msg(sock_f_out) + 4;
} else {
- while (msg_queue.head) {
- struct msg_list_item *m = msg_queue.head;
- int len = IVAL(m->buf, 0) & 0xFFFFFF;
- int tag = *((uchar*)m->buf+3) - MPLEX_BASE;
- if (!(msg_queue.head = m->next))
- msg_queue.tail = NULL;
- defer_forwarding_messages++;
- mplex_write(msg_fd_out, tag, m->buf + 4, len, m->convert);
- defer_forwarding_messages--;
- free(m);
- }
+ while (msg_queue.head)
+ (void)flush_a_msg(msg_fd_out);
}
}
got_flist_entry_status(FES_NO_SEND, buf);
break;
case MSG_ERROR_SOCKET:
+ case MSG_ERROR_UTF8:
case MSG_CLIENT:
if (!am_generator)
goto invalid_msg;
* this, sender-side deletions were mostly happening at the end. */
void increment_active_files(int ndx, int itemizing, enum logcode code)
{
- /* TODO: tune these limits? */
- while (active_filecnt >= (active_bytecnt >= 128*1024 ? 10 : 50)) {
+ while (1) {
+ /* TODO: tune these limits? */
+ int limit = active_bytecnt >= 128*1024 ? 10 : 50;
+ if (active_filecnt < limit)
+ break;
check_for_finished_files(itemizing, code, 0);
+ if (active_filecnt < limit)
+ break;
if (iobuf_out_cnt)
io_flush(NORMAL_FLUSH);
else
xbuf outbuf, inbuf;
INIT_XBUF(outbuf, buffer + 4, 0, sizeof buffer - 4);
- INIT_XBUF(inbuf, (char*)buf, len, -1);
+ INIT_XBUF(inbuf, (char*)buf, len, (size_t)-1);
iconvbufs(ic_send, &inbuf, &outbuf,
ICB_INCLUDE_BAD | ICB_INCLUDE_INCOMPLETE);
SIVAL(buffer, 0, ((MPLEX_BASE + (int)code)<<24) + len);
- defer_forwarding_keep = 1; /* defer_forwarding_messages++ on return */
+ keep_defer_forwarding++; /* defer_forwarding_messages++ on return */
writefd_unbuffered(fd, buffer, n+4);
- defer_forwarding_keep = 0;
+ keep_defer_forwarding--;
if (len > n)
writefd_unbuffered(fd, buf+n, len-n);
void wait_for_receiver(void)
{
- if (iobuf_out_cnt)
- io_flush(NORMAL_FLUSH);
- else
- read_msg_fd();
+ if (io_flush(FULL_FLUSH))
+ return;
+ read_msg_fd();
}
int get_redo_num(void)
rprintf(FERROR, RSYNC_NAME ": connection unexpectedly closed "
"(%s bytes received so far) [%s]\n",
- big_num(stats.total_read, 0), who_am_i());
+ big_num(stats.total_read), who_am_i());
exit_cleanup(RERR_STREAMIO);
}
maxfd = new_fd;
}
- tv.tv_sec = select_timeout;
+ if (am_sender && inc_recurse && !flist_eof && !defer_forwarding_messages && !cnt
+ && file_total - file_old_total < MAX_FILECNT_LOOKAHEAD
+ && file_total - file_old_total >= MIN_FILECNT_LOOKAHEAD)
+ tv.tv_sec = 0;
+ else
+ tv.tv_sec = select_timeout;
tv.tv_usec = 0;
errno = 0;
defer_forwarding_messages = 0;
exit_cleanup(RERR_SOCKETIO);
}
- check_timeout();
+ if (am_sender && tv.tv_sec == 0)
+ send_extra_file_list(sock_f_out, -1);
+ else
+ check_timeout();
continue;
}
send_msg_int(MSG_IO_ERROR, IVAL(line, 0));
io_error |= IVAL(line, 0);
break;
+ case MSG_DEL_STATS:
+ if (msg_bytes)
+ goto invalid_msg;
+ read_del_stats(fd);
+ if (am_sender && am_server)
+ write_del_stats(sock_f_out);
+ break;
case MSG_DELETED:
if (msg_bytes >= sizeof line)
goto overflow;
xbuf outbuf, inbuf;
char ibuf[512];
int add_null = 0;
- int pos = 0;
INIT_CONST_XBUF(outbuf, line);
- INIT_XBUF(inbuf, ibuf, 0, -1);
+ INIT_XBUF(inbuf, ibuf, 0, (size_t)-1);
while (msg_bytes) {
inbuf.len = msg_bytes > sizeof ibuf
if (iconvbufs(ic_send, &inbuf, &outbuf,
ICB_INCLUDE_BAD | ICB_INCLUDE_INCOMPLETE) < 0)
goto overflow;
- pos = -1;
}
if (add_null) {
if (outbuf.len == outbuf.size)
total_written = (sleep_usec - elapsed_usec) * bwlimit / (ONE_SEC/1024);
}
+static const char *what_fd_is(int fd)
+{
+ static char buf[20];
+
+ if (fd == sock_f_out)
+ return "socket";
+ else if (fd == msg_fd_out)
+ return "message fd";
+ else if (fd == batch_fd)
+ return "batch file";
+ else {
+ snprintf(buf, sizeof buf, "fd %d", fd);
+ return buf;
+ }
+}
+
/* Write len bytes to the file descriptor fd, looping as necessary to get
* the job done and also (in certain circumstances) reading any data on
* msg_fd_in to avoid deadlock.
if (am_server && fd == msg_fd_out)
exit_cleanup(RERR_STREAMIO);
rsyserr(FERROR, errno,
- "writefd_unbuffered failed to write %ld bytes [%s]",
- (long)len, who_am_i());
+ "writefd_unbuffered failed to write %ld bytes to %s [%s]",
+ (long)len, what_fd_is(fd), who_am_i());
/* If the other side is sending us error messages, try
* to grab any messages they sent before they died. */
while (!am_server && fd == sock_f_out && io_multiplexing_in) {
}
no_flush--;
- defer_inc -= defer_forwarding_keep;
+ if (keep_defer_forwarding)
+ defer_inc--;
if (!(defer_forwarding_messages -= defer_inc) && !no_flush)
msg_flush();
}
-void io_flush(int flush_it_all)
+int io_flush(int flush_it_all)
{
- if (!iobuf_out_cnt || no_flush)
- return;
+ int flushed_something = 0;
- if (io_multiplexing_out)
- mplex_write(sock_f_out, MSG_DATA, iobuf_out, iobuf_out_cnt, 0);
- else
- writefd_unbuffered(iobuf_f_out, iobuf_out, iobuf_out_cnt);
- iobuf_out_cnt = 0;
+ if (no_flush)
+ return 0;
- if (flush_it_all && !defer_forwarding_messages)
+ if (iobuf_out_cnt) {
+ if (io_multiplexing_out)
+ mplex_write(sock_f_out, MSG_DATA, iobuf_out, iobuf_out_cnt, 0);
+ else
+ writefd_unbuffered(iobuf_f_out, iobuf_out, iobuf_out_cnt);
+ iobuf_out_cnt = 0;
+ flushed_something = 1;
+ }
+
+ if (flush_it_all && !defer_forwarding_messages && msg_queue.head) {
msg_flush();
+ flushed_something = 1;
+ }
+
+ return flushed_something;
}
static void writefd(int fd, const char *buf, size_t len)
if (fd == sock_f_out)
stats.total_written += len;
- if (fd == write_batch_monitor_out) {
- if ((size_t)write(batch_fd, buf, len) != len)
- exit_cleanup(RERR_FILEIO);
- }
+ if (fd == write_batch_monitor_out)
+ writefd_unbuffered(batch_fd, buf, len);
if (!iobuf_out || fd != iobuf_f_out) {
writefd_unbuffered(fd, buf, len);
Matt McCutchen's Web Site / rsync / rsync.git / blobdiff