Mention the latest configure fixes.
[rsync/rsync.git] / receiver.c
index da90b5b..1aba494 100644 (file)
@@ -3,7 +3,7 @@
  *
  * Copyright (C) 1996-2000 Andrew Tridgell
  * Copyright (C) 1996 Paul Mackerras
- * 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
@@ -59,6 +59,7 @@ extern struct filter_list_struct daemon_filter_list;
 
 static struct bitbag *delayed_bits = NULL;
 static int phase = 0, redoing = 0;
+static flist_ndx_list batch_redo_list;
 /* We're either updating the basis file or an identical copy: */
 static int updating_basis_or_equiv;
 
@@ -284,8 +285,11 @@ static int receive_data(int f_in, char *fname_r, int fd_r, OFF_T size_r,
                goto report_write_error;
 
 #ifdef HAVE_FTRUNCATE
-       if (inplace && fd != -1)
-               ftruncate(fd, offset);
+       if (inplace && fd != -1
+        && ftruncate(fd, offset) < 0) {
+               rsyserr(FERROR_XFER, errno, "ftruncate failed on %s",
+                       full_fname(fname));
+       }
 #endif
 
        if (do_progress)
@@ -348,25 +352,68 @@ static void handle_delayed_updates(char *local_name)
        }
 }
 
-static int get_next_gen_ndx(int fd, int next_gen_ndx, int desired_ndx)
+static void no_batched_update(int ndx, BOOL is_redo)
 {
-       while (next_gen_ndx < desired_ndx) {
-               if (next_gen_ndx >= 0) {
-                       struct file_struct *file = cur_flist->files[next_gen_ndx];
-                       rprintf(FERROR_XFER,
-                               "(No batched update for%s \"%s\")\n",
-                               file->flags & FLAG_FILE_SENT ? " resend of" : "",
-                               f_name(file, NULL));
-               }
-               next_gen_ndx = read_int(fd);
-               if (next_gen_ndx == -1) {
-                       if (inc_recurse)
-                               next_gen_ndx = first_flist->prev->used + first_flist->prev->ndx_start;
-                       else
-                               next_gen_ndx = cur_flist->used;
+       struct file_list *flist = flist_for_ndx(ndx, "no_batched_update");
+       struct file_struct *file = flist->files[ndx - flist->ndx_start];
+
+       rprintf(FERROR_XFER, "(No batched update for%s \"%s\")\n",
+               is_redo ? " resend of" : "", f_name(file, NULL));
+
+       if (inc_recurse)
+               send_msg_int(MSG_NO_SEND, ndx);
+}
+
+static int we_want_redo(int desired_ndx)
+{
+       static int redo_ndx = -1;
+
+       while (redo_ndx < desired_ndx) {
+               if (redo_ndx >= 0)
+                       no_batched_update(redo_ndx, True);
+               if ((redo_ndx = flist_ndx_pop(&batch_redo_list)) < 0)
+                       return 0;
+       }
+
+       if (redo_ndx == desired_ndx) {
+               redo_ndx = -1;
+               return 1;
+       }
+
+       return 0;
+}
+
+static int gen_wants_ndx(int desired_ndx)
+{
+       static int next_ndx = -1;
+       static int done_cnt = 0;
+       static BOOL got_eof = False;
+       int flist_num = first_flist->flist_num;
+
+       if (got_eof)
+               return 0;
+
+       while (next_ndx < desired_ndx) {
+               if (inc_recurse && flist_num <= done_cnt)
+                       return 0;
+               if (next_ndx >= 0)
+                       no_batched_update(next_ndx, False);
+               if ((next_ndx = read_int(batch_gen_fd)) < 0) {
+                       if (inc_recurse) {
+                               done_cnt++;
+                               continue;
+                       }
+                       got_eof = True;
+                       return 0;
                }
        }
-       return next_gen_ndx;
+
+       if (next_ndx == desired_ndx) {
+               next_ndx = -1;
+               return 1;
+       }
+
+       return 0;
 }
 
 /**
@@ -375,7 +422,6 @@ static int get_next_gen_ndx(int fd, int next_gen_ndx, int desired_ndx)
  * Receiver process runs on the same host as the generator process. */
 int recv_files(int f_in, char *local_name)
 {
-       int next_gen_ndx = -1;
        int fd1,fd2;
        STRUCT_STAT st;
        int iflags, xlen;
@@ -410,17 +456,13 @@ int recv_files(int f_in, char *local_name)
                                         xname, &xlen);
                if (ndx == NDX_DONE) {
                        if (inc_recurse && first_flist) {
+                               if (read_batch)
+                                       gen_wants_ndx(first_flist->used + first_flist->ndx_start);
                                flist_free(first_flist);
                                if (first_flist)
                                        continue;
-                       }
-                       if (read_batch && cur_flist) {
-                               int high = inc_recurse
-                                   ? first_flist->prev->used + first_flist->prev->ndx_start
-                                   : cur_flist->used;
-                               get_next_gen_ndx(batch_gen_fd, next_gen_ndx, high);
-                               next_gen_ndx = -1;
-                       }
+                       } else if (read_batch && first_flist)
+                               gen_wants_ndx(first_flist->used);
                        if (++phase > max_phase)
                                break;
                        if (verbose > 2)
@@ -490,7 +532,7 @@ int recv_files(int f_in, char *local_name)
                cleanup_got_literal = 0;
 
                if (daemon_filter_list.head
-                   && check_filter(&daemon_filter_list, fname, 0) < 0) {
+                   && check_filter(&daemon_filter_list, FLOG, fname, 0) < 0) {
                        rprintf(FERROR, "attempt to hack rsync failed.\n");
                        exit_cleanup(RERR_PROTOCOL);
                }
@@ -509,17 +551,15 @@ int recv_files(int f_in, char *local_name)
                }
 
                if (read_batch) {
-                       next_gen_ndx = get_next_gen_ndx(batch_gen_fd, next_gen_ndx, ndx);
-                       if (ndx < next_gen_ndx) {
+                       if (!(redoing ? we_want_redo(ndx) : gen_wants_ndx(ndx))) {
                                rprintf(FINFO,
-                                       "(Skipping batched update for \"%s\")\n",
+                                       "(Skipping batched update for%s \"%s\")\n",
+                                       redoing ? " resend of" : "",
                                        fname);
                                discard_receive_data(f_in, F_LENGTH(file));
-                               if (inc_recurse)
-                                       send_msg_int(MSG_NO_SEND, ndx);
+                               file->flags |= FLAG_FILE_SENT;
                                continue;
                        }
-                       next_gen_ndx = -1;
                }
 
                partialptr = partial_dir ? partial_dir_fname(fname) : fname;
@@ -556,7 +596,7 @@ int recv_files(int f_in, char *local_name)
                                break;
                        }
                        if (!fnamecmp || (daemon_filter_list.head
-                         && check_filter(&daemon_filter_list, fname, 0) < 0)) {
+                         && check_filter(&daemon_filter_list, FLOG, fname, 0) < 0)) {
                                fnamecmp = fname;
                                fnamecmp_type = FNAMECMP_FNAME;
                        }
@@ -698,23 +738,33 @@ int recv_files(int f_in, char *local_name)
                                do_unlink(partialptr);
                                handle_partial_dir(partialptr, PDIR_DELETE);
                        }
-               } else if (keep_partial && partialptr
-                   && handle_partial_dir(partialptr, PDIR_CREATE)) {
-                       if (!finish_transfer(partialptr, fnametmp, fnamecmp, NULL,
-                                            file, recv_ok, !partial_dir))
+               } else if (keep_partial && partialptr) {
+                       if (!handle_partial_dir(partialptr, PDIR_CREATE)) {
+                               rprintf(FERROR,
+                                   "Unable to create partial-dir for %s -- discarding %s.\n",
+                                   local_name ? local_name : f_name(file, NULL),
+                                   recv_ok ? "completed file" : "partial file");
+                               do_unlink(fnametmp);
+                               recv_ok = -1;
+                       } else if (!finish_transfer(partialptr, fnametmp, fnamecmp, NULL,
+                                                   file, recv_ok, !partial_dir))
                                recv_ok = -1;
                        else if (delay_updates && recv_ok) {
                                bitbag_set_bit(delayed_bits, ndx);
                                recv_ok = 2;
-                       }
-               } else {
-                       partialptr = NULL;
+                       } else
+                               partialptr = NULL;
+               } else
                        do_unlink(fnametmp);
-               }
 
                cleanup_disable();
 
+               if (read_batch)
+                       file->flags |= FLAG_FILE_SENT;
+
                switch (recv_ok) {
+               case 2:
+                       break;
                case 1:
                        if (remove_source_files || inc_recurse
                         || (preserve_hard_links && F_IS_HLINKED(file)))
@@ -744,6 +794,8 @@ int recv_files(int f_in, char *local_name)
                                        keptstr, redostr);
                        }
                        if (!redoing) {
+                               if (read_batch)
+                                       flist_ndx_push(&batch_redo_list, ndx);
                                send_msg_int(MSG_REDO, ndx);
                                file->flags |= FLAG_FILE_SENT;
                        } else if (inc_recurse)