- Added a new block_size arg to map_file(). Use it to set the

[rsync/rsync.git] / generator.c

diff --git a/generator.c b/generator.c
index 84958b8..b431cb7 100644 (file)
--- a/generator.c
+++ b/generator.c
@@ -46,13 +46,13 @@ extern char *compare_dest;
 extern int link_dest;
 extern int whole_file;
 extern int local_server;
-extern int read_batch;
-extern int write_batch;
 extern int list_only;
+extern int read_batch;
 extern int only_existing;
 extern int orig_umask;
 extern int safe_symlinks;
 extern unsigned int block_size;
+extern unsigned int max_map_size;
 
 extern struct exclude_list_struct server_exclude_list;
 
@@ -163,7 +163,9 @@ static void sum_sizes_sqroot(struct sum_struct *sum, uint64 len)
                        c >>= 1;
                } while (c >= 8);       /* round to multiple of 8 */
                blength = MAX(blength, BLOCK_SIZE);
+               blength = MIN(blength, MAX_MAP_SIZE);
        }
+       max_map_size = MAX(MAX_MAP_SIZE, blength * 32);
 
        if (protocol_version < 27) {
                s2length = csum_length;
@@ -201,31 +203,13 @@ static void sum_sizes_sqroot(struct sum_struct *sum, uint64 len)
        }
 }
 
-/**
- * Perhaps we want to just send an empty checksum set for this file,
- * which will force the whole thing to be literally transferred.
- *
- * When do we do this?  If the user's explicitly said they
- * want the whole thing, or if { they haven't explicitly
- * requested a delta, and it's local but not batch mode.}
- *
- * Whew. */
-static BOOL disable_deltas_p(void)
-{
-       if (whole_file > 0)
-               return True;
-       if (whole_file == 0 || write_batch || read_batch)
-               return False;
-       return local_server;
-}
-
 
 /*
  * Generate and send a stream of signatures/checksums that describe a buffer
  *
  * Generate approximately one checksum every block_len bytes.
  */
-static void generate_and_send_sums(struct map_struct *buf, size_t len, int f_out)
+static void generate_and_send_sums(struct map_struct *buf, OFF_T len, int f_out)
 {
        size_t i;
        struct sum_struct sum;
@@ -258,15 +242,16 @@ static void generate_and_send_sums(struct map_struct *buf, size_t len, int f_out
 
 
 
-/**
+/*
  * Acts on file number @p i from @p flist, whose name is @p fname.
  *
  * First fixes up permissions, then generates checksums for the file.
  *
  * @note This comment was added later by mbp who was trying to work it
  * out.  It might be wrong.
- **/
-void recv_generator(char *fname, struct file_struct *file, int i, int f_out)
+ */
+static void recv_generator(char *fname, struct file_struct *file, int i,
+                          int f_out)
 {
        int fd;
        STRUCT_STAT st;
@@ -413,6 +398,9 @@ void recv_generator(char *fname, struct file_struct *file, int i, int f_out)
        }
 #endif
 
+       if (read_batch)
+               return;
+
        if (preserve_hard_links && hard_link_check(file, HL_CHECK_MASTER))
                return;
 
@@ -500,7 +488,7 @@ void recv_generator(char *fname, struct file_struct *file, int i, int f_out)
                return;
        }
 
-       if (disable_deltas_p()) {
+       if (whole_file > 0) {
                write_int(f_out,i);
                write_sum_head(f_out, NULL);
                return;
@@ -542,10 +530,10 @@ void recv_generator(char *fname, struct file_struct *file, int i, int f_out)
 }
 
 
-void generate_files(int f, struct file_list *flist, char *local_name)
+void generate_files(int f_out, struct file_list *flist, char *local_name)
 {
        int i;
-       int phase=0;
+       int phase = 0;
        char fbuf[MAXPATHLEN];
 
        if (verbose > 2) {
@@ -555,7 +543,7 @@ void generate_files(int f, struct file_list *flist, char *local_name)
 
        if (verbose >= 2) {
                rprintf(FINFO,
-                       disable_deltas_p()
+                       whole_file > 0
                        ? "delta-transmission disabled for local transfer or --whole-file\n"
                        : "delta transmission enabled\n");
        }
@@ -583,31 +571,31 @@ void generate_files(int f, struct file_list *flist, char *local_name)
                }
 
                recv_generator(local_name ? local_name : f_name_to(file, fbuf),
-                              file, i, f);
+                              file, i, f_out);
        }
 
        phase++;
        csum_length = SUM_LENGTH;
-       ignore_times=1;
+       ignore_times = 1;
 
        if (verbose > 2)
                rprintf(FINFO,"generate_files phase=%d\n",phase);
 
-       write_int(f,-1);
+       write_int(f_out, -1);
 
        /* files can cycle through the system more than once
         * to catch initial checksum errors */
        while ((i = get_redo_num()) != -1) {
                struct file_struct *file = flist->files[i];
                recv_generator(local_name ? local_name : f_name_to(file, fbuf),
-                              file, i, f);
+                              file, i, f_out);
        }
 
        phase++;
        if (verbose > 2)
                rprintf(FINFO,"generate_files phase=%d\n",phase);
 
-       write_int(f,-1);
+       write_int(f_out, -1);
 
        if (preserve_hard_links)
                do_hard_links();