Added the --append option.

[rsync/rsync.git] / receiver.c

diff --git a/receiver.c b/receiver.c
index d7c6f59..abe1f66 100644 (file)
--- a/receiver.c
+++ b/receiver.c
@@ -21,7 +21,7 @@
 #include "rsync.h"
 
 extern int verbose;
-extern int dry_run;
+extern int do_xfers;
 extern int am_daemon;
 extern int am_server;
 extern int do_progress;
@@ -30,6 +30,7 @@ extern int log_format_has_i;
 extern int daemon_log_format_has_i;
 extern int csum_length;
 extern int read_batch;
+extern int write_batch;
 extern int batch_gen_fd;
 extern int protocol_version;
 extern int relative_paths;
@@ -53,7 +54,7 @@ extern char *log_format;
 extern char *tmpdir;
 extern char *partial_dir;
 extern char *basis_dir[];
-
+extern struct file_list *the_file_list;
 extern struct filter_list_struct server_filter_list;
 
 #define SLOT_SIZE      (16*1024)       /* Desired size in bytes */
@@ -62,6 +63,7 @@ extern struct filter_list_struct server_filter_list;
 
 static uint32 **delayed_bits = NULL;
 static int delayed_slot_cnt = 0;
+static int phase = 0;
 
 static void init_delayed_bits(int max_ndx)
 {
@@ -266,7 +268,7 @@ static int receive_data(int f_in, char *fname_r, int fd_r, OFF_T size_r,
                                continue;
                        }
                }
-               if (fd != -1 && write_file(fd, map, len) != (int)len)
+               if (fd != -1 && map && write_file(fd, map, len) != (int)len)
                        goto report_write_error;
                offset += len;
        }
@@ -343,6 +345,22 @@ static void handle_delayed_updates(struct file_list *flist, char *local_name)
        }
 }
 
+static int get_next_gen_i(int batch_gen_fd, int next_gen_i, int desired_i)
+{
+       while (next_gen_i < desired_i) {
+               if (next_gen_i >= 0) {
+                       rprintf(FINFO,
+                               "(No batched update for%s \"%s\")\n",
+                               phase ? " resend of" : "",
+                               safe_fname(f_name(the_file_list->files[next_gen_i])));
+               }
+               next_gen_i = read_int(batch_gen_fd);
+               if (next_gen_i == -1)
+                       next_gen_i = the_file_list->count;
+       }
+       return next_gen_i;
+}
+
 
 /**
  * main routine for receiver process.
@@ -365,7 +383,8 @@ int recv_files(int f_in, struct file_list *flist, char *local_name)
        int save_make_backups = make_backups;
        int itemizing = am_daemon ? daemon_log_format_has_i
                      : !am_server && log_format_has_i;
-       int i, recv_ok, phase = 0;
+       int max_phase = protocol_version >= 29 ? 2 : 1;
+       int i, recv_ok;
 
        if (verbose > 2)
                rprintf(FINFO,"recv_files(%d) starting\n",flist->count);
@@ -384,20 +403,17 @@ int recv_files(int f_in, struct file_list *flist, char *local_name)
                i = read_int(f_in);
                if (i == -1) {
                        if (read_batch) {
-                               if (next_gen_i != flist->count)
-                                       while (read_int(batch_gen_fd) != -1) {}
+                               get_next_gen_i(batch_gen_fd, next_gen_i,
+                                              flist->count);
                                next_gen_i = -1;
                        }
-                       if (phase)
+                       if (++phase > max_phase)
                                break;
-                       phase = 1;
                        csum_length = SUM_LENGTH;
                        if (verbose > 2)
                                rprintf(FINFO, "recv_files phase=%d\n", phase);
-                       if (delay_updates) {
+                       if (phase == 2 && delay_updates)
                                handle_delayed_updates(flist, local_name);
-                               delay_updates = 0;
-                       }
                        send_msg(MSG_DONE, "", 0);
                        if (keep_partial && !partial_dir)
                                make_backups = 0; /* prevents double backup */
@@ -419,6 +435,12 @@ int recv_files(int f_in, struct file_list *flist, char *local_name)
                        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);
+               }
 
                stats.current_file_index = i;
                stats.num_transferred_files++;
@@ -431,20 +453,24 @@ int recv_files(int f_in, struct file_list *flist, char *local_name)
                        exit_cleanup(RERR_PROTOCOL);
                }
 
-               if (dry_run) { /* log the transfer */
+               if (!do_xfers) { /* log the transfer */
                        if (!am_server && log_format)
                                log_item(file, &stats, iflags, NULL);
+                       if (read_batch)
+                               discard_receive_data(f_in, file->length);
+                       continue;
+               }
+               if (write_batch < 0) {
+                       log_item(file, &stats, iflags, NULL);
+                       if (!am_server)
+                               discard_receive_data(f_in, file->length);
                        continue;
                }
 
                if (read_batch) {
-                       while (i > next_gen_i) {
-                               next_gen_i = read_int(batch_gen_fd);
-                               if (next_gen_i == -1)
-                                       next_gen_i = flist->count;
-                       }
+                       next_gen_i = get_next_gen_i(batch_gen_fd, next_gen_i, i);
                        if (i < next_gen_i) {
-                               rprintf(FINFO, "skipping update for \"%s\"\n",
+                               rprintf(FINFO, "(Skipping batched update for \"%s\")\n",
                                        safe_fname(fname));
                                discard_receive_data(f_in, file->length);
                                continue;
@@ -680,6 +706,8 @@ int recv_files(int f_in, struct file_list *flist, char *local_name)
        }
        make_backups = save_make_backups;
 
+       if (phase == 2 && delay_updates) /* for protocol_version < 29 */
+               handle_delayed_updates(flist, local_name);
 
        if (verbose > 2)
                rprintf(FINFO,"recv_files finished\n");