Split up the ifuncs.h file into 3 .h files.

[rsync/rsync.git] / hlink.c

diff --git a/hlink.c b/hlink.c
index c5a4fef..5f0f5a6 100644 (file)
--- a/hlink.c
+++ b/hlink.c
@@ -21,6 +21,7 @@
  */
 
 #include "rsync.h"
+#include "inums.h"
 
 extern int dry_run;
 extern int list_only;
@@ -35,8 +36,8 @@ extern int remove_source_files;
 extern int stdout_format_has_i;
 extern int maybe_ATTRS_REPORT;
 extern int unsort_ndx;
-extern char *basis_dir[];
-extern struct file_list *cur_flist, *first_flist;
+extern char *basis_dir[MAX_BASIS_DIRS+1];
+extern struct file_list *cur_flist;
 
 #ifdef SUPPORT_HARD_LINKS
 
@@ -70,10 +71,10 @@ struct ht_int64_node *idev_find(int64 dev, int64 ino)
                dev_node = hashtable_find(dev_tbl, dev, 1);
                if (!(tbl = dev_node->data)) {
                        tbl = dev_node->data = hashtable_create(512, SIZEOF_INT64 == 8);
-                       if (DEBUG_GTE(HLINK, 1)) {
+                       if (DEBUG_GTE(HLINK, 3)) {
                                rprintf(FINFO,
-                                   "created inode hashtable for dev %s\n",
-                                   big_num(dev, 0));
+                                   "[%s] created hashtable for dev %s\n",
+                                   who_am_i(), big_num(dev));
                        }
                }
        } else
@@ -124,14 +125,15 @@ static void match_gnums(int32 *ndx_list, int ndx_count)
                if (inc_recurse) {
                        node = hashtable_find(prior_hlinks, gnum, 1);
                        if (!node->data) {
-                               node->data = new_array0(char, 5);
+                               if (!(node->data = new_array0(char, 5)))
+                                       out_of_memory("match_gnums");
                                assert(gnum >= hlink_flist->ndx_start);
                                file->flags |= FLAG_HLINK_FIRST;
                                prev = -1;
                        } else if (CVAL(node->data, 0) == 0) {
                                struct file_list *flist;
                                prev = IVAL(node->data, 1);
-                               flist = flist_for_ndx(prev);
+                               flist = flist_for_ndx(prev, NULL);
                                if (flist)
                                        flist->files[prev - flist->ndx_start]->flags &= ~FLAG_HLINK_LAST;
                                else {
@@ -184,7 +186,7 @@ static void match_gnums(int32 *ndx_list, int ndx_count)
  * to first when we're done. */
 void match_hard_links(struct file_list *flist)
 {
-       if (!list_only) {
+       if (!list_only && flist->used) {
                int i, ndx_count = 0;
                int32 *ndx_list;
 
@@ -260,7 +262,7 @@ static char *check_prior(struct file_struct *file, int gnum,
        while (1) {
                struct file_list *flist;
                if (prev_ndx < 0
-                || (flist = flist_for_ndx(prev_ndx)) == NULL)
+                || (flist = flist_for_ndx(prev_ndx, NULL)) == NULL)
                        break;
                fp = flist->files[prev_ndx - flist->ndx_start];
                if (!(fp->flags & FLAG_SKIP_HLINK)) {
@@ -309,6 +311,10 @@ int hard_link_check(struct file_struct *file, int ndx, const char *fname,
                if (!flist) {
                        /* The previous file was skipped, so this one is
                         * treated as if it were the first in its group. */
+                       if (DEBUG_GTE(HLINK, 2)) {
+                               rprintf(FINFO, "hlink for %d (%s,%d): virtual first\n",
+                                       ndx, f_name(file, NULL), gnum);
+                       }
                        return 0;
                }
 
@@ -325,8 +331,16 @@ int hard_link_check(struct file_struct *file, int ndx, const char *fname,
                                F_HL_PREV(prev_file) = ndx;
                                file->flags |= FLAG_FILE_SENT;
                                cur_flist->in_progress++;
+                               if (DEBUG_GTE(HLINK, 2)) {
+                                       rprintf(FINFO, "hlink for %d (%s,%d): waiting for %d\n",
+                                               ndx, f_name(file, NULL), gnum, F_HL_PREV(file));
+                               }
                                return 1;
                        }
+                       if (DEBUG_GTE(HLINK, 2)) {
+                               rprintf(FINFO, "hlink for %d (%s,%d): looking for a leader\n",
+                                       ndx, f_name(file, NULL), gnum);
+                       }
                        return 0;
                }
 
@@ -334,7 +348,6 @@ int hard_link_check(struct file_struct *file, int ndx, const char *fname,
                if (!(prev_file->flags & FLAG_HLINK_FIRST)) {
                        /* The previous previous is FIRST when prev is not. */
                        prev_name = realname = check_prior(prev_file, gnum, &prev_ndx, &flist);
-                       assert(prev_name != NULL || flist != NULL);
                        /* Update our previous pointer to point to the FIRST. */
                        F_HL_PREV(file) = prev_ndx;
                }
@@ -342,9 +355,14 @@ int hard_link_check(struct file_struct *file, int ndx, const char *fname,
                if (!prev_name) {
                        int alt_dest;
 
+                       assert(flist != NULL);
                        prev_file = flist->files[prev_ndx - flist->ndx_start];
                        /* F_HL_PREV() is alt_dest value when DONE && FIRST. */
                        alt_dest = F_HL_PREV(prev_file);
+                       if (DEBUG_GTE(HLINK, 2)) {
+                               rprintf(FINFO, "hlink for %d (%s,%d): found flist match (alt %d)\n",
+                                       ndx, f_name(file, NULL), gnum, alt_dest);
+                       }
 
                        if (alt_dest >= 0 && dry_run) {
                                pathjoin(namebuf, MAXPATHLEN, basis_dir[alt_dest],
@@ -358,6 +376,11 @@ int hard_link_check(struct file_struct *file, int ndx, const char *fname,
                }
        }
 
+       if (DEBUG_GTE(HLINK, 2)) {
+               rprintf(FINFO, "hlink for %d (%s,%d): leader is %d (%s)\n",
+                       ndx, f_name(file, NULL), gnum, prev_ndx, prev_name);
+       }
+
        if (link_stat(prev_name, &prev_st, 0) < 0) {
                rsyserr(FERROR_XFER, errno, "stat %s failed",
                        full_fname(prev_name));
@@ -482,16 +505,7 @@ void finish_hard_link(struct file_struct *file, const char *fname, int fin_ndx,
 
        while ((ndx = prev_ndx) >= 0) {
                int val;
-               flist = flist_for_ndx(ndx);
-               if (flist == NULL) {
-                       int start1 = first_flist ? first_flist->ndx_start : 0;
-                       int start2 = first_flist ? first_flist->prev->ndx_start : 0;
-                       int used = first_flist ? first_flist->prev->used : 0;
-                       rprintf(FERROR,
-                               "File index not found: %d (%d - %d)\n",
-                               ndx, start1 - 1, start2 + used - 1);
-                       exit_cleanup(RERR_PROTOCOL);
-               }
+               flist = flist_for_ndx(ndx, "finish_hard_link");
                file = flist->files[ndx - flist->ndx_start];
                file->flags = (file->flags & ~FLAG_HLINK_FIRST) | FLAG_HLINK_DONE;
                prev_ndx = F_HL_PREV(file);