Make the directory hashtable optional and controled via restore -H
[dump.git] / restore / symtab.c
index 06548bcee6e5a84c7bbd0e8eae6c614eb877b57d..7e5605730db48ce73ca6472178b1bcd6f5b668cd 100644 (file)
@@ -37,7 +37,7 @@
 
 #ifndef lint
 static const char rcsid[] =
-       "$Id: symtab.c,v 1.26 2005/07/07 08:47:16 stelian Exp $";
+       "$Id: symtab.c,v 1.27 2005/07/07 09:16:08 stelian Exp $";
 #endif /* not lint */
 
 /*
@@ -118,7 +118,7 @@ dir_hash(char *name)
                hash1 = hash0;
                hash0 = hash; 
        }       
-       return hash0 % DIRHASH_SIZE;
+       return hash0 % dirhash_size;
 }
 
 /*
@@ -220,7 +220,7 @@ lookupname(char *name)
                        /* search all hash lists for renamed inodes */
                        if (ep == NULL) {
                                int j;
-                               for (j = 0; j < DIRHASH_SIZE; j++) {
+                               for (j = 0; j < dirhash_size; j++) {
                                        ep = oldep->e_entries[j];
                                        for ( ; ep != NULL; ep = ep->e_sibling)
                                                if (strcmp(ep->e_name, buf) == 0)
@@ -307,7 +307,7 @@ addentry(char *name, dump_ino_t inum, int type)
        }
        np->e_type = type & ~LINK;
        if (type & NODE) {
-               np->e_entries = calloc(1, DIRHASH_SIZE * sizeof(struct entry *));
+               np->e_entries = calloc(1, dirhash_size * sizeof(struct entry *));
                if (np->e_entries == NULL)
                        panic("unable to allocate directory entries\n");
        }
@@ -357,7 +357,7 @@ freeentry(struct entry *ep)
                        badentry(ep, "freeing referenced directory");
                if (ep->e_entries != NULL) {
                        int i;
-                       for (i = 0; i < DIRHASH_SIZE; i++) {
+                       for (i = 0; i < dirhash_size; i++) {
                                if (ep->e_entries[i] != NULL) 
                                        badentry(ep, "freeing non-empty directory");
                        }
@@ -439,7 +439,7 @@ removeentry(struct entry *ep)
 
                        /* search all hash lists for renamed inodes */
                        int j;
-                       for (j = 0; j < DIRHASH_SIZE; j++) {
+                       for (j = 0; j < dirhash_size; j++) {
                                np = ep->e_parent;
                                entry = np->e_entries[j];
                                if (entry == ep) {
@@ -550,7 +550,7 @@ dumpsymtable(char *filename, long checkpt)
        long mynum = 1, stroff = 0, hashoff = 0;
        FILE *fd;
        struct symtableheader hdr;
-       struct entry *temphash[DIRHASH_SIZE];
+       struct entry **temphash;
 
        Vprintf(stdout, "Check pointing the restore\n");
        if (Nflag)
@@ -575,19 +575,24 @@ dumpsymtable(char *filename, long checkpt)
        /*
         * Write out e_entries tables
         */
+       temphash = calloc(1, dirhash_size * sizeof(struct entry *));
+       if (temphash == NULL)
+               errx(1, "no memory for saving hashtable");
        for (i = WINO; i <= maxino; i++) {
                for (ep = lookupino(i); ep != NULL; ep = ep->e_links) {
                        if (ep->e_entries != NULL) {
                                int j;
-                               memcpy(temphash, ep->e_entries, DIRHASH_SIZE * sizeof(struct entry *));
-                               for (j = 0; j < DIRHASH_SIZE; j++) {
+                               memcpy(temphash, ep->e_entries, dirhash_size * sizeof(struct entry *));
+                               for (j = 0; j < dirhash_size; j++) {
                                        if (temphash[j])
                                                temphash[j] = (struct entry *)ep->e_entries[j]->e_index;
                                }
-                               fwrite(temphash, DIRHASH_SIZE, sizeof(struct entry *), fd);
+                               fwrite(temphash, dirhash_size, sizeof(struct entry *), fd);
                        }
                }
        }
+       free(temphash);
+
        /*
         * Convert pointers to indexes, and output
         */
@@ -608,7 +613,7 @@ dumpsymtable(char *filename, long checkpt)
                                        (struct entry *)ep->e_sibling->e_index;
                        if (ep->e_entries != NULL) {
                                tep->e_entries = (struct entry **)hashoff;
-                               hashoff += DIRHASH_SIZE * sizeof(struct entry *);
+                               hashoff += dirhash_size * sizeof(struct entry *);
                        }
                        if (ep->e_next != NULL)
                                tep->e_next =
@@ -737,7 +742,7 @@ initsymtable(char *filename)
                if (ep->e_type == NODE) {
                        int i;
                        ep->e_entries = (struct entry **)(base + hdr.stringsize + (long)ep->e_entries);
-                       for (i = 0; i < DIRHASH_SIZE; i++) {
+                       for (i = 0; i < dirhash_size; i++) {
                                if (ep->e_entries[i])
                                        ep->e_entries[i] = &baseep[(long)ep->e_entries[i]];
                        }