extern int ignore_errors;
extern int numeric_ids;
extern int recurse;
+extern int use_qsort;
extern int xfer_dirs;
extern int filesfrom_fd;
extern int one_file_system;
extern iconv_t ic_send, ic_recv;
#endif
+#define PTR_SIZE (sizeof (struct file_struct *))
+
int io_error;
int checksum_len;
dev_t filesystem_dev; /* used to implement -x */
}
}
-static int file_compare(struct file_struct **file1, struct file_struct **file2)
+static int file_compare(const void *file1, const void *file2)
+{
+ return f_name_cmp(*(struct file_struct **)file1,
+ *(struct file_struct **)file2);
+}
+
+/* The guts of a merge sort algorithm. This was derived from the GNU C
+ * version, but I (Wayne) changed the merge code to do less copying and
+ * to require only half the amount of temporary memory. */
+static void fsort_tmp(struct file_struct **fp, size_t num,
+ struct file_struct **tmp)
+{
+ struct file_struct **f1, **f2, **t;
+ size_t n1, n2;
+
+ n1 = num / 2;
+ n2 = num - n1;
+ f1 = fp;
+ f2 = fp + n1;
+
+ if (n1 > 1)
+ fsort_tmp(f1, n1, tmp);
+ if (n2 > 1)
+ fsort_tmp(f2, n2, tmp);
+
+ while (f_name_cmp(*f1, *f2) <= 0) {
+ if (!--n1)
+ return;
+ f1++;
+ }
+
+ t = tmp;
+ memcpy(t, f1, n1 * PTR_SIZE);
+
+ *f1++ = *f2++, n2--;
+
+ while (n1 > 0 && n2 > 0) {
+ if (f_name_cmp(*t, *f2) <= 0)
+ *f1++ = *t++, n1--;
+ else
+ *f1++ = *f2++, n2--;
+ }
+
+ if (n1 > 0)
+ memcpy(f1, t, n1 * PTR_SIZE);
+}
+
+/* This file-struct sorting routine makes sure that any identical names in
+ * the file list stay in the same order as they were in the original list.
+ * This is particularly vital in inc_recurse mode where we expect a sort
+ * on the flist to match the exact order of a sort on the dir_flist. */
+static void fsort(struct file_struct **fp, size_t num)
{
- return f_name_cmp(*file1, *file2);
+ if (num <= 1)
+ return;
+
+ if (use_qsort)
+ qsort(fp, num, PTR_SIZE, file_compare);
+ else {
+ struct file_struct **tmp = new_array(struct file_struct *,
+ (num+1) / 2);
+ fsort_tmp(fp, num, tmp);
+ free(tmp);
+ }
}
/* We take an entire set of sibling dirs from the sorted flist and link them
future_cnt = 0;
while (future_cnt < at_least) {
struct file_struct *file = dir_flist->sorted[send_dir_ndx];
- int dstart = dir_count;
+ int dir_ndx, dstart = dir_count;
int32 *dp;
flist = flist_new(0, "send_extra_file_list");
start_write = stats.total_written;
- /* If this is the first of a set of duplicate dirs, we must
- * send all the dirs together in a single file-list. We must
- * also send the index of the last dir in the header. */
- if (file->flags & FLAG_DUPLICATE) {
- int dir_ndx, end_ndx = send_dir_ndx;
- struct file_struct *fp = file;
-
- while (1) {
- dp = F_DIRNODE_P(fp);
- end_ndx = DIR_NEXT_SIBLING(dp);
- fp = dir_flist->sorted[end_ndx];
- if (!(fp->flags & FLAG_DUPLICATE))
- break;
- }
-
#ifdef ICONV_OPTION
- if (ic_ndx)
- dir_ndx = F_NDX(fp);
- else
+ if (ic_ndx)
+ dir_ndx = F_NDX(file);
+ else
#endif
- dir_ndx = end_ndx;
- write_ndx(f, NDX_FLIST_OFFSET - dir_ndx);
+ dir_ndx = send_dir_ndx;
+ write_ndx(f, NDX_FLIST_OFFSET - dir_ndx);
- while (1) {
- send1extra(f, file, flist);
- if (send_dir_ndx == end_ndx)
- break;
- dp = F_DIRNODE_P(file);
- send_dir_ndx = DIR_NEXT_SIBLING(dp);
- file = dir_flist->sorted[send_dir_ndx];
- }
- } else {
- int dir_ndx;
-#ifdef ICONV_OPTION
- if (ic_ndx)
- dir_ndx = F_NDX(file);
- else
-#endif
- dir_ndx = send_dir_ndx;
- write_ndx(f, NDX_FLIST_OFFSET - dir_ndx);
+ send1extra(f, file, flist);
+ dp = F_DIRNODE_P(file);
+ /* If there are any duplicate directory names that follow, we
+ * send all the dirs together in one file-list. The dir_flist
+ * tree links all the child subdirs onto the last dup dir. */
+ while ((dir_ndx = DIR_NEXT_SIBLING(dp)) >= 0
+ && dir_flist->sorted[dir_ndx]->flags & FLAG_DUPLICATE) {
+ send_dir_ndx = dir_ndx;
+ file = dir_flist->sorted[dir_ndx];
send1extra(f, file, flist);
+ dp = F_DIRNODE_P(file);
}
+
write_byte(f, 0);
#ifdef ICONV_OPTION
if (verbose > 3)
output_flist(flist);
- dp = F_DIRNODE_P(file);
if (DIR_FIRST_CHILD(dp) >= 0) {
send_dir_ndx = DIR_FIRST_CHILD(dp);
send_dir_depth++;
dir_flist->count);
memcpy(dir_flist->sorted + dstart, dir_flist->files + dstart,
(dir_flist->count - dstart) * sizeof (struct file_struct*));
- qsort(dir_flist->sorted + dstart, dir_flist->count - dstart,
- sizeof (struct file_struct*), (int (*)())file_compare);
+ fsort(dir_flist->sorted + dstart, dir_flist->count - dstart);
}
} else
#endif
flist->sorted = flist->files;
if (inc_recurse && dir_flist->count > dstart) {
dir_flist->sorted = dir_flist->files;
- qsort(dir_flist->sorted + dstart, dir_flist->count - dstart,
- sizeof (struct file_struct*), (int (*)())file_compare);
+ fsort(dir_flist->sorted + dstart, dir_flist->count - dstart);
}
}
return;
}
- qsort(flist->sorted, flist->count,
- sizeof flist->sorted[0], (int (*)())file_compare);
+ fsort(flist->sorted, flist->count);
if (!am_sender || inc_recurse) {
for (i = prev_i = 0; i < flist->count; i++) {
} else
j = -1;
if (j >= 0) {
- struct file_struct *fp = flist->sorted[j];
int keep, drop;
/* If one is a dir and the other is not, we want to
* keep the dir because it might have contents in the
* list. */
- if (S_ISDIR(file->mode) != S_ISDIR(fp->mode)) {
- if (S_ISDIR(file->mode))
+ if (S_ISDIR(file->mode)) {
+ struct file_struct *fp = flist->sorted[j];
+ if (!S_ISDIR(fp->mode))
keep = i, drop = j;
else
keep = j, drop = i;
- } else if (protocol_version < 27)
+ } else
keep = j, drop = i;
- else
- keep = i, drop = j;
if (am_sender)
flist->sorted[drop]->flags |= FLAG_DUPLICATE;
Matt McCutchen's Web Site / rsync / rsync.git / blobdiff