- Handle the new incremental-recursion mode.
[rsync/rsync.git] / sender.c
index 688dff6..3808cda 100644 (file)
--- a/sender.c
+++ b/sender.c
@@ -1,33 +1,49 @@
 /*
-   Copyright (C) Andrew Tridgell 1996
-   Copyright (C) Paul Mackerras 1996
-
-   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
-   the Free Software Foundation; either version 2 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   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.
-*/
+ * Routines only used by the sending process.
+ *
+ * Copyright (C) 1996 Andrew Tridgell
+ * Copyright (C) 1996 Paul Mackerras
+ * 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
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * 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.,
+ * 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
+ */
 
 #include "rsync.h"
 
 extern int verbose;
-extern int csum_length;
-extern struct stats stats;
-extern int io_error;
-extern int dry_run;
+extern int do_xfers;
 extern int am_server;
 extern int am_daemon;
+extern int log_before_transfer;
+extern int stdout_format_has_i;
+extern int logfile_format_has_i;
+extern int csum_length;
+extern int append_mode;
+extern int io_error;
+extern int allowed_lull;
 extern int protocol_version;
+extern int remove_source_files;
+extern int updating_basis_file;
+extern int make_backups;
+extern int do_progress;
+extern int inplace;
+extern int batch_fd;
+extern int write_batch;
 extern struct stats stats;
+extern struct file_list *the_file_list;
+extern char *stdout_format;
 
 
 /**
@@ -37,22 +53,6 @@ extern struct stats stats;
  * and transmits them to the receiver.  The sender process runs on the
  * machine holding the source files.
  **/
-void read_sum_head(int f, struct sum_struct *sum)
-{
-       sum->count = read_int(f);
-       sum->blength = read_int(f);
-       if (protocol_version < 27) {
-               sum->s2length = csum_length;
-       } else {
-               sum->s2length = read_int(f);
-               if (sum->s2length > MD4_SUM_LENGTH) {
-                       rprintf(FERROR, "Invalid checksum length %ld\n",
-                           (long)sum->s2length);
-                       exit_cleanup(RERR_PROTOCOL);
-               }
-       }
-       sum->remainder = read_int(f);
-}
 
 /**
  * Receive the checksums for a buffer
@@ -60,7 +60,8 @@ void read_sum_head(int f, struct sum_struct *sum)
 static struct sum_struct *receive_sums(int f)
 {
        struct sum_struct *s;
-       int i;
+       int32 i;
+       int lull_mod = allowed_lull * 5;
        OFF_T offset = 0;
 
        if (!(s = new(struct sum_struct)))
@@ -71,8 +72,15 @@ static struct sum_struct *receive_sums(int f)
        s->sums = NULL;
 
        if (verbose > 3) {
-               rprintf(FINFO, "count=%ld n=%u rem=%u\n",
-                       (long)s->count, s->blength, s->remainder);
+               rprintf(FINFO, "count=%.0f n=%ld rem=%ld\n",
+                       (double)s->count, (long)s->blength, (long)s->remainder);
+       }
+
+       if (append_mode) {
+               s->flength = (OFF_T)s->count * s->blength;
+               if (s->remainder)
+                       s->flength -= s->blength - s->remainder;
+               return s;
        }
 
        if (s->count == 0)
@@ -81,19 +89,22 @@ static struct sum_struct *receive_sums(int f)
        if (!(s->sums = new_array(struct sum_buf, s->count)))
                out_of_memory("receive_sums");
 
-       for (i = 0; i < (int)s->count; i++) {
+       for (i = 0; i < s->count; i++) {
                s->sums[i].sum1 = read_int(f);
                read_buf(f, s->sums[i].sum2, s->s2length);
 
                s->sums[i].offset = offset;
                s->sums[i].flags = 0;
 
-               if (i == (int)s->count-1 && s->remainder != 0)
+               if (i == s->count-1 && s->remainder != 0)
                        s->sums[i].len = s->remainder;
                else
                        s->sums[i].len = s->blength;
                offset += s->sums[i].len;
 
+               if (allowed_lull && !(i % lull_mod))
+                       maybe_send_keepalive();
+
                if (verbose > 3) {
                        rprintf(FINFO,
                                "chunk[%d] len=%d offset=%.0f sum1=%08x\n",
@@ -107,7 +118,43 @@ static struct sum_struct *receive_sums(int f)
        return s;
 }
 
+void successful_send(int ndx)
+{
+       char fname[MAXPATHLEN];
+       struct file_struct *file;
+       unsigned int offset;
+
+       if (ndx < 0 || ndx >= the_file_list->count)
+               return;
+
+       file = the_file_list->files[ndx];
+       if (F_ROOTDIR(file)) {
+               offset = stringjoin(fname, sizeof fname,
+                                   F_ROOTDIR(file), "/", NULL);
+       } else
+               offset = 0;
+       f_name(file, fname + offset);
+       if (remove_source_files) {
+               if (do_unlink(fname) == 0) {
+                       if (verbose > 1)
+                               rprintf(FINFO, "sender removed %s\n", fname + offset);
+               } else
+                       rsyserr(FERROR, errno, "sender failed to remove %s", fname + offset);
+       }
+}
 
+void write_ndx_and_attrs(int f_out, int ndx, int iflags,
+                        uchar fnamecmp_type, char *buf, int len)
+{
+       write_int(f_out, ndx);
+       if (protocol_version < 29)
+               return;
+       write_shortint(f_out, iflags);
+       if (iflags & ITEM_BASIS_TYPE_FOLLOWS)
+               write_byte(f_out, fnamecmp_type);
+       if (iflags & ITEM_XNAME_FOLLOWS)
+               write_vstring(f_out, buf, len);
+}
 
 void send_files(struct file_list *flist, int f_out, int f_in)
 {
@@ -115,12 +162,18 @@ void send_files(struct file_list *flist, int f_out, int f_in)
        struct sum_struct *s;
        struct map_struct *mbuf = NULL;
        STRUCT_STAT st;
-       char fname[MAXPATHLEN];
-       int i;
+       char *fname2, fname[MAXPATHLEN];
+       char xname[MAXPATHLEN];
+       uchar fnamecmp_type;
+       int iflags, xlen;
        struct file_struct *file;
-       int phase = 0;
+       int phase = 0, max_phase = protocol_version >= 29 ? 2 : 1;
        struct stats initial_stats;
-       int j;
+       int save_make_backups = make_backups;
+       int itemizing = am_server ? logfile_format_has_i : stdout_format_has_i;
+       enum logcode log_code = log_before_transfer ? FLOG : FINFO;
+       int f_xfer = write_batch < 0 ? batch_fd : f_out;
+       int i, j;
 
        if (verbose > 2)
                rprintf(FINFO, "send_files starting\n");
@@ -129,54 +182,66 @@ void send_files(struct file_list *flist, int f_out, int f_in)
                unsigned int offset;
 
                i = read_int(f_in);
-               if (i == -1) {
-                       if (phase == 0) {
-                               phase++;
-                               csum_length = SUM_LENGTH;
-                               write_int(f_out, -1);
-                               if (verbose > 2)
-                                       rprintf(FINFO, "send_files phase=%d\n", phase);
-                               continue;
-                       }
-                       break;
+               if (i == NDX_DONE) {
+                       if (++phase > max_phase)
+                               break;
+                       csum_length = SUM_LENGTH;
+                       if (verbose > 2)
+                               rprintf(FINFO, "send_files phase=%d\n", phase);
+                       write_int(f_out, NDX_DONE);
+                       /* For inplace: redo phase turns off the backup
+                        * flag so that we do a regular inplace send. */
+                       make_backups = 0;
+                       append_mode = 0;
+                       continue;
                }
 
-               if (i < 0 || i >= flist->count) {
-                       rprintf(FERROR, "Invalid file index %d (count=%d)\n",
-                               i, flist->count);
-                       exit_cleanup(RERR_PROTOCOL);
-               }
+               iflags = read_item_attrs(f_in, f_out, i, &fnamecmp_type,
+                                        xname, &xlen);
+               if (iflags == ITEM_IS_NEW) /* no-op packet */
+                       continue;
 
                file = flist->files[i];
-
-               stats.current_file_index = i;
-               stats.num_transferred_files++;
-               stats.total_transferred_size += file->length;
-
-               if (file->basedir) {
+               if (F_ROOTDIR(file)) {
                        /* N.B. We're sure that this fits, so offset is OK. */
-                       offset = strlcpy(fname, file->basedir, sizeof fname);
+                       offset = strlcpy(fname, F_ROOTDIR(file), sizeof fname);
                        if (!offset || fname[offset-1] != '/')
                                fname[offset++] = '/';
                } else
                        offset = 0;
-               f_name_to(file, fname + offset);
+               fname2 = f_name(file, fname + offset);
 
                if (verbose > 2)
                        rprintf(FINFO, "send_files(%d, %s)\n", i, fname);
 
-               if (dry_run) {
-                       if (!am_server && verbose) {
-                               rprintf(FINFO, "%s\n", fname+offset);
-                       }
-                       write_int(f_out, i);
+               if (!(iflags & ITEM_TRANSFER)) {
+                       maybe_log_item(file, iflags, itemizing, xname);
+                       continue;
+               }
+               if (phase == 2) {
+                       rprintf(FERROR,
+                               "got transfer request in phase 2 [%s]\n",
+                               who_am_i());
+                       exit_cleanup(RERR_PROTOCOL);
+               }
+
+               updating_basis_file = inplace && (protocol_version >= 29
+                       ? fnamecmp_type == FNAMECMP_FNAME : !make_backups);
+
+               stats.current_file_index = i;
+               stats.num_transferred_files++;
+               stats.total_transferred_size += F_LENGTH(file);
+
+               if (!do_xfers) { /* log the transfer */
+                       log_item(FCLIENT, file, &stats, iflags, NULL);
+                       write_ndx_and_attrs(f_out, i, iflags, fnamecmp_type,
+                                           xname, xlen);
                        continue;
                }
 
                initial_stats = stats;
 
-               s = receive_sums(f_in);
-               if (!s) {
+               if (!(s = receive_sums(f_in))) {
                        io_error |= IOERR_GENERAL;
                        rprintf(FERROR, "receive_sums failed\n");
                        return;
@@ -210,27 +275,36 @@ void send_files(struct file_list *flist, int f_out, int f_in)
                        return;
                }
 
-               mbuf = st.st_size ? map_file(fd, st.st_size) : NULL;
+               if (st.st_size) {
+                       int32 read_size = MAX(s->blength * 3, MAX_MAP_SIZE);
+                       mbuf = map_file(fd, st.st_size, read_size, s->blength);
+               } else
+                       mbuf = NULL;
 
                if (verbose > 2) {
                        rprintf(FINFO, "send_files mapped %s of size %.0f\n",
                                fname, (double)st.st_size);
                }
 
-               write_int(f_out, i);
-               write_sum_head(f_out, s);
+               write_ndx_and_attrs(f_out, i, iflags, fnamecmp_type,
+                                   xname, xlen);
+               write_sum_head(f_xfer, s);
 
                if (verbose > 2)
                        rprintf(FINFO, "calling match_sums %s\n", fname);
 
-               if (!am_server && verbose) {
-                       rprintf(FINFO, "%s\n", fname+offset);
-               }
+               if (log_before_transfer)
+                       log_item(FCLIENT, file, &initial_stats, iflags, NULL);
+               else if (!am_server && verbose && do_progress)
+                       rprintf(FCLIENT, "%s\n", fname2);
 
                set_compression(fname);
 
-               match_sums(f_out, s, mbuf, st.st_size);
-               log_send(file, &initial_stats);
+               match_sums(f_xfer, s, mbuf, st.st_size);
+               if (do_progress)
+                       end_progress(st.st_size);
+
+               log_item(log_code, file, &initial_stats, iflags, NULL);
 
                if (mbuf) {
                        j = unmap_file(mbuf);
@@ -247,12 +321,16 @@ void send_files(struct file_list *flist, int f_out, int f_in)
 
                if (verbose > 2)
                        rprintf(FINFO, "sender finished %s\n", fname);
+
+               /* Flag that we actually sent this entry. */
+               file->flags |= FLAG_SENT;
        }
+       make_backups = save_make_backups;
 
        if (verbose > 2)
                rprintf(FINFO, "send files finished\n");
 
        match_report();
 
-       write_int(f_out, -1);
+       write_int(f_out, NDX_DONE);
 }