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librazor/merger.c
author J. Ali Harlow <ali@juiblex.co.uk>
Sat Oct 04 18:12:58 2014 +0100 (2014-10-04)
changeset 454 56ff755c268c
parent 403 e63951c1d0f8
child 458 3f841a46eab5
permissions -rw-r--r--
Only export symbols starting with razor_ in dynamic library.

Apart from being good practice to avoid clashes with higher-level
libraries and the application, this also fixes an obscure bug: The
gnulib library is used both by librazor (the dynamic library) and
by razor (the executable). In doing so, we want to have two separate
copies of the library despite the code duplication this involves.
Without the explicit limit to export only razor_ symbols, the razor
executable under mingw64 was picking up the getopt_long function
from librazor and the optind variable from libgnu which meant that
it did not see optind changing. Hiding librazor's copy of getopt
causes the linker to find libgnu's copy and everything works.

Note that under mingw librazor-#.dll still contains undocumented
(private) razor_ symbols but these will do no harm as long as nobody
tries to use them. 
     1 /*

     2  * Copyright (C) 2008  Kristian Høgsberg <krh@redhat.com>

     3  * Copyright (C) 2008  Red Hat, Inc

     4  * Copyright (C) 2009-2011  J. Ali Harlow <ali@juiblex.co.uk>

     5  *

     6  * This program is free software; you can redistribute it and/or modify

     7  * it under the terms of the GNU General Public License as published by

     8  * the Free Software Foundation; either version 2 of the License, or

     9  * (at your option) any later version.

    10  *

    11  * This program is distributed in the hope that it will be useful,

    12  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    14  * GNU General Public License for more details.

    15  *

    16  * You should have received a copy of the GNU General Public License along

    17  * with this program; if not, write to the Free Software Foundation, Inc.,

    18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

    19  */

    20 

    21 #include "config.h"

    22 #include <string.h>

    23 #include <assert.h>

    24 #include "razor-internal.h"

    25 #include "razor.h"

    26 

    27 #define UPSTREAM_SOURCE 0x80

    28 

    29 struct source {

    30 	struct razor_set *set;

    31 	uint32_t *property_map;

    32 	uint32_t *file_map;

    33 };

    34 

    35 struct razor_merger {

    36 	int committed;

    37 	struct razor_set *set;

    38 	struct hashtable table;

    39 	struct hashtable file_table;

    40 	struct hashtable details_table;

    41 	struct source source1;

    42 	struct source source2;

    43 };

    44 

    45 struct razor_merger *

    46 razor_merger_create(struct razor_set *set1, struct razor_set *set2)

    47 {

    48 	struct razor_merger *merger;

    49 	int count;

    50 	size_t size;

    51 	uint32_t header_version;

    52 

    53 	merger = zalloc(sizeof *merger);

    54 	merger->set = razor_set_create();

    55 	if (set1->packages.size) {

    56 		header_version = razor_set_get_header_version(set1);

    57 		if (set2->packages.size &&

    58 		    razor_set_get_header_version(set2) > header_version)

    59 			header_version = razor_set_get_header_version(set2);

    60 	} else

    61 		header_version = razor_set_get_header_version(set2);

    62 	razor_set_set_header_version(merger->set, header_version);

    63 	hashtable_init(&merger->table, &merger->set->string_pool);

    64 	hashtable_init(&merger->file_table, &merger->set->file_string_pool);

    65 	hashtable_init(&merger->details_table,

    66 		       &merger->set->details_string_pool);

    67 

    68 	merger->source1.set = set1;

    69 	count = set1->properties.size / sizeof (struct razor_property);

    70 	size = count * sizeof merger->source1.property_map[0];

    71 	merger->source1.property_map = zalloc(size);

    72 	count = set1->files.size / sizeof (struct razor_entry);

    73 	size = count * sizeof merger->source1.file_map[0];

    74 	merger->source1.file_map = zalloc(size);

    75 

    76 	merger->source2.set = set2;

    77 	count = set2->properties.size / sizeof (struct razor_property);

    78 	size = count * sizeof merger->source2.property_map[0];

    79 	merger->source2.property_map = zalloc(size);

    80 	count = set2->files.size / sizeof (struct razor_entry);

    81 	size = count * sizeof merger->source2.file_map[0];

    82 	merger->source2.file_map = zalloc(size);

    83 

    84 	return merger;

    85 }

    86 

    87 void

    88 razor_merger_add_package(struct razor_merger *merger,

    89 			 struct razor_package *package)

    90 {

    91 	char *pool, *details_pool, *s;

    92 	struct list *r;

    93 	struct razor_package *p;

    94 	struct razor_set *set1;

    95 	struct source *source;

    96 	uint32_t flags, *prefix;

    97 	struct array install_prefixes;

    98 

    99 	assert(merger->committed == 0);

   100 

   101 	set1 = merger->source1.set;

   102 	if (set1->packages.data <= (void *) package &&

   103 	    (void *) package < set1->packages.data + set1->packages.size) {

   104 		source = &merger->source1;

   105 		flags = 0;

   106 	} else {

   107 		source = &merger->source2;

   108 		flags = UPSTREAM_SOURCE;

   109 	}

   110 

   111 	pool = source->set->string_pool.data;

   112 	details_pool = source->set->details_string_pool.data;

   113 	p = array_add(&merger->set->packages, sizeof *p);

   114 	p->name = hashtable_tokenize(&merger->table, &pool[package->name]);

   115 	p->flags = flags;

   116 	p->version = hashtable_tokenize(&merger->table,

   117 					&pool[package->version]);

   118 	p->arch = hashtable_tokenize(&merger->table,

   119 				     &pool[package->arch]);

   120 	if (source->set->details_string_pool.size) {

   121 		p->summary = hashtable_tokenize(&merger->details_table,

   122 						&details_pool[package->summary]);

   123 		p->description = hashtable_tokenize(&merger->details_table,

   124 						    &details_pool[package->description]);

   125 		p->url = hashtable_tokenize(&merger->details_table,

   126 					    &details_pool[package->url]);

   127 		p->license = hashtable_tokenize(&merger->details_table,

   128 						&details_pool[package->license]);

   129 	} else {

   130 		p->summary = hashtable_tokenize(&merger->details_table, "");

   131 		p->description = hashtable_tokenize(&merger->details_table, "");

   132 		p->url = hashtable_tokenize(&merger->details_table, "");

   133 		p->license = hashtable_tokenize(&merger->details_table, "");

   134 	}

   135 

   136 	p->properties = package->properties;

   137 	r = list_first(&package->properties, &source->set->property_pool);

   138 	while (r) {

   139 		source->property_map[r->data] = 1;

   140 		r = list_next(r);

   141 	}

   142 

   143 	p->files = package->files;

   144 	r = list_first(&package->files, &source->set->file_pool);

   145 	while (r) {

   146 		source->file_map[r->data] = 1;

   147 		r = list_next(r);

   148 	}

   149 

   150 	array_init(&install_prefixes);

   151 	r = list_first(&package->install_prefixes, &source->set->prefix_pool);

   152 	while (r) {

   153 		s = (char *)source->set->string_pool.data + r->data;

   154 		prefix = array_add(&install_prefixes, sizeof *prefix);

   155 		*prefix = hashtable_tokenize(&merger->table, s);

   156 		r = list_next(r);

   157 	}

   158 	list_set_array(&p->install_prefixes, &merger->set->prefix_pool,

   159                        &install_prefixes, 0);

   160 	array_release(&install_prefixes);

   161 

   162 	p->preun.program = hashtable_tokenize(&merger->table,

   163 					      &pool[package->preun.program]);

   164 	p->preun.body = hashtable_tokenize(&merger->table,

   165 					   &pool[package->preun.body]);

   166 	p->postun.program = hashtable_tokenize(&merger->table,

   167 					       &pool[package->postun.program]);

   168 	p->postun.body = hashtable_tokenize(&merger->table,

   169 					    &pool[package->postun.body]);

   170 }

   171 

   172 static uint32_t

   173 add_property(struct razor_merger *merger,

   174 	     const char *name, uint32_t flags, const char *version)

   175 {

   176 	struct razor_property *p;

   177 

   178 	p = array_add(&merger->set->properties, sizeof *p);

   179 	p->name = hashtable_tokenize(&merger->table, name);

   180 	p->flags = flags;

   181 	p->version = hashtable_tokenize(&merger->table, version);

   182 

   183 	return p - (struct razor_property *) merger->set->properties.data;

   184 }

   185 

   186 static void

   187 merge_properties(struct razor_merger *merger)

   188 {

   189 	struct razor_property *p1, *p2;

   190 	struct razor_set *set1, *set2;

   191 	uint32_t *map1, *map2;

   192 	int i, j, cmp, count1, count2;

   193 	char *pool1, *pool2;

   194 

   195 	set1 = merger->source1.set;

   196 	set2 = merger->source2.set;

   197 	map1 = merger->source1.property_map;

   198 	map2 = merger->source2.property_map;

   199 

   200 	i = 0;

   201 	j = 0;

   202 	pool1 = set1->string_pool.data;

   203 	pool2 = set2->string_pool.data;

   204 

   205 	count1 = set1->properties.size / sizeof *p1;

   206 	count2 = set2->properties.size / sizeof *p2;

   207 	while (i < count1 || j < count2) {

   208 		if (i < count1 && map1[i] == 0) {

   209 			i++;

   210 			continue;

   211 		}

   212 		if (j < count2 && map2[j] == 0) {

   213 			j++;

   214 			continue;

   215 		}

   216 		p1 = (struct razor_property *) set1->properties.data + i;

   217 		p2 = (struct razor_property *) set2->properties.data + j;

   218 		if (i < count1 && j < count2)

   219 			cmp = strcmp(&pool1[p1->name], &pool2[p2->name]);

   220 		else if (i < count1)

   221 			cmp = -1;

   222 		else

   223 			cmp = 1;

   224 		if (cmp == 0)

   225 			cmp = p1->flags - p2->flags;

   226 		if (cmp == 0)

   227 			cmp = razor_versioncmp(&pool1[p1->version],

   228 					       &pool2[p2->version]);

   229 		if (cmp < 0) {

   230 			map1[i++] = add_property(merger,

   231 						 &pool1[p1->name],

   232 						 p1->flags,

   233 						 &pool1[p1->version]);

   234 		} else if (cmp > 0) {

   235 			map2[j++] = add_property(merger,

   236 						 &pool2[p2->name],

   237 						 p2->flags,

   238 						 &pool2[p2->version]);

   239 		} else  {

   240 			map1[i++] = map2[j++] =

   241 				add_property(merger,

   242 					     &pool1[p1->name],

   243 					     p1->flags,

   244 					     &pool1[p1->version]);

   245 		}

   246 	}

   247 }

   248 

   249 static void

   250 emit_properties(struct list_head *properties, struct array *source_pool,

   251 		uint32_t *map, struct array *pool)

   252 {

   253 	uint32_t r;

   254 	struct list *p, *q;

   255 

   256 	r = pool->size / sizeof *q;

   257 	p = list_first(properties, source_pool);

   258 	while (p) {

   259 		q = array_add(pool, sizeof *q);

   260 		q->data = map[p->data];

   261 		q->flags = p->flags;

   262 		p = list_next(p);

   263 	}

   264 

   265 	list_set_ptr(properties, r);

   266 }

   267 

   268 static uint32_t

   269 add_file(struct razor_merger *merger, const char *name)

   270 {

   271 	struct razor_entry *e;

   272 

   273 	e = array_add(&merger->set->files, sizeof *e);

   274 	e->name = hashtable_tokenize(&merger->file_table, name);

   275 	e->flags = 0;

   276 	e->start = 0;

   277 

   278 	return e - (struct razor_entry *)merger->set->files.data;

   279 }

   280 

   281 /* FIXME. Blah */

   282 static int

   283 fix_file_map(uint32_t *map,

   284 	     struct razor_entry *files,

   285 	     struct razor_entry *top)

   286 {

   287 	uint32_t e;

   288 	int found_file = 0;

   289 

   290 	e = top - files;

   291 	do {

   292 		if (files[e].start &&

   293 		    fix_file_map(map, files, &files[files[e].start]))

   294 			map[e] = 1;

   295 		if (map[e])

   296 			found_file = 1;

   297 	} while (!(files[e++].flags & RAZOR_ENTRY_LAST));

   298 

   299 	return found_file;

   300 }

   301 

   302 struct merge_directory {

   303 	uint32_t merged, dir1, dir2;

   304 };

   305 

   306 static void

   307 merge_one_directory(struct razor_merger *merger, struct merge_directory *md)

   308 {

   309 	struct razor_entry *root1, *root2, *mroot, *e1, *e2;

   310 	struct razor_set *set1, *set2;

   311 	struct array merge_stack;

   312 	struct merge_directory *child_md, *end_md;

   313 	uint32_t *map1, *map2, start, last;

   314 	int cmp;

   315 	char *pool1, *pool2;

   316 

   317 	set1 = merger->source1.set;

   318 	set2 = merger->source2.set;

   319 	map1 = merger->source1.file_map;

   320 	map2 = merger->source2.file_map;

   321 	pool1 = set1->file_string_pool.data;

   322 	pool2 = set2->file_string_pool.data;

   323 	root1 = (struct razor_entry *) set1->files.data;

   324 	root2 = (struct razor_entry *) set2->files.data;

   325 

   326 	array_init(&merge_stack);

   327 

   328 	start = merger->set->files.size / sizeof (struct razor_entry);

   329 	last = 0xFFFFFFFF;

   330 	e1 = md->dir1 != 0xFFFFFFFF ? root1 + md->dir1 : NULL;

   331 	e2 = md->dir2 != 0xFFFFFFFF ? root2 + md->dir2 : NULL;

   332 	while (e1 || e2) {

   333 		if (!e2 && !map1[e1 - root1]) {

   334 			if ((e1++)->flags & RAZOR_ENTRY_LAST)

   335 				e1 = NULL;

   336 			continue;

   337 		}

   338 		if (!e1 && !map2[e2 - root2]) {

   339 			if ((e2++)->flags & RAZOR_ENTRY_LAST)

   340 				e2 = NULL;

   341 			continue;

   342 		}

   343 		if (e1 && !map1[e1 - root1] &&

   344 		    e2 && !map2[e2 - root2]) {

   345 			if ((e1++)->flags & RAZOR_ENTRY_LAST)

   346 				e1 = NULL;

   347 			if ((e2++)->flags & RAZOR_ENTRY_LAST)

   348 				e2 = NULL;

   349 			continue;

   350 		}

   351 

   352 		if (!e1)

   353 			cmp = 1;

   354 		else if (!e2)

   355 			cmp = -1;

   356 		else {

   357 			cmp = strcmp (&pool1[e1->name],

   358 				      &pool2[e2->name]);

   359 		}

   360 

   361 		if (cmp < 0) {

   362 			if (map1[e1 - root1]) {

   363 				map1[e1 - root1] = last =

   364 					add_file(merger, &pool1[e1->name]);

   365 				if (e1->start) {

   366 					child_md = array_add(&merge_stack, sizeof (struct merge_directory));

   367 					child_md->merged = last;

   368 					child_md->dir1 = e1->start;

   369 					child_md->dir2 = 0xFFFFFFFF;

   370 				}

   371 			}

   372 			if ((e1++)->flags & RAZOR_ENTRY_LAST)

   373 				e1 = NULL;

   374 		} else if (cmp > 0) {

   375 			if (map2[e2 - root2]) {

   376 				map2[e2 - root2] = last =

   377 					add_file(merger, &pool2[e2->name]);

   378 				if (e2->start) {

   379 					child_md = array_add(&merge_stack, sizeof (struct merge_directory));

   380 					child_md->merged = last;

   381 					child_md->dir1 = 0xFFFFFFFF;

   382 					child_md->dir2 = e2->start;

   383 				}

   384 			}

   385 			if ((e2++)->flags & RAZOR_ENTRY_LAST)

   386 				e2 = NULL;

   387 		} else {

   388 			map1[e1 - root1] = map2[e2- root2] = last =

   389 				add_file(merger, &pool1[e1->name]);

   390 			if (e1->start || e2->start) {

   391 				child_md = array_add(&merge_stack, sizeof (struct merge_directory));

   392 				child_md->merged = last;

   393 				child_md->dir1 = e1->start ? e1->start : 0xFFFFFFFF;

   394 				child_md->dir2 = e2->start ? e2->start : 0xFFFFFFFF;

   395 			}

   396 			if ((e1++)->flags & RAZOR_ENTRY_LAST)

   397 				e1 = NULL;

   398 			if ((e2++)->flags & RAZOR_ENTRY_LAST)

   399 				e2 = NULL;

   400 		}

   401 	}

   402 

   403 	mroot = (struct razor_entry *)merger->set->files.data;

   404 	if (last != 0xFFFFFFFF) {

   405 		mroot[last].flags = RAZOR_ENTRY_LAST;

   406 		mroot[md->merged].start = start;

   407 	}

   408 

   409 	end_md = merge_stack.data + merge_stack.size;

   410 	for (child_md = merge_stack.data; child_md < end_md; child_md++)

   411 		merge_one_directory(merger, child_md);

   412 	array_release(&merge_stack);

   413 }

   414 

   415 static void

   416 merge_files(struct razor_merger *merger)

   417 {

   418 	struct razor_entry *root;

   419 	struct merge_directory md;

   420 	uint32_t *map1, *map2;

   421 

   422 	map1 = merger->source1.file_map;

   423 	map2 = merger->source2.file_map;

   424 

   425 	md.merged = 0;

   426 

   427 	if (merger->source1.set->files.size) {

   428 		root = (struct razor_entry *) merger->source1.set->files.data;

   429 		if (root->start)

   430 			fix_file_map(map1, root, root);

   431 		md.dir1 = 0;

   432 	} else {

   433 		md.dir1 = 0xFFFFFFFF;

   434 	}

   435 

   436 	if (merger->source2.set->files.size) {

   437 		root = (struct razor_entry *) merger->source2.set->files.data;

   438 		if (root->start)

   439 			fix_file_map(map2, root, root);

   440 		md.dir2 = 0;

   441 	} else {

   442 		md.dir2 = 0xFFFFFFFF;

   443 	}

   444 

   445 	/* Remove the unnamed root which razor_set_create() added */

   446 	array_release(&merger->set->files);

   447 	array_init(&merger->set->files);

   448 

   449 	merge_one_directory(merger, &md);

   450 }

   451 

   452 static void

   453 emit_files(struct list_head *files, struct array *source_pool,

   454 	   uint32_t *map, struct array *pool)

   455 {

   456 	uint32_t r;

   457 	struct list *p, *q;

   458 

   459 	r = pool->size / sizeof *q;

   460 	p = list_first(files, source_pool);

   461 	while (p) {

   462 		q = array_add(pool, sizeof *q);

   463 		q->data = map[p->data];

   464 		q->flags = p->flags;

   465 		p = list_next(p);

   466 	}

   467 

   468 	list_set_ptr(files, r);

   469 }

   470 

   471 /* Rebuild property->packages maps.  We can't just remap these, as a

   472  * property may have lost or gained a number of packages.  Allocate an

   473  * array per property and loop through the packages and add them to

   474  * the arrays for their properties. */

   475 static void

   476 rebuild_property_package_lists(struct razor_set *set)

   477 {

   478 	struct array *pkgs, *a;

   479 	struct razor_package *pkg, *pkg_end;

   480 	struct razor_property *prop, *prop_end;

   481 	struct list *r;

   482 	uint32_t *q;

   483 	int count;

   484 

   485 	count = set->properties.size / sizeof (struct razor_property);

   486 	pkgs = zalloc(count * sizeof *pkgs);

   487 	pkg_end = set->packages.data + set->packages.size;

   488 

   489 	for (pkg = set->packages.data; pkg < pkg_end; pkg++) {

   490 		r = list_first(&pkg->properties, &set->property_pool);

   491 		while (r) {

   492 			q = array_add(&pkgs[r->data], sizeof *q);

   493 			*q = pkg - (struct razor_package *) set->packages.data;

   494 			r = list_next(r);

   495 		}

   496 	}

   497 

   498 	prop_end = set->properties.data + set->properties.size;

   499 	a = pkgs;

   500 	for (prop = set->properties.data; prop < prop_end; prop++, a++) {

   501 		list_set_array(&prop->packages, &set->package_pool, a, 0);

   502 		array_release(a);

   503 	}

   504 	free(pkgs);

   505 }

   506 

   507 static void

   508 rebuild_file_package_lists(struct razor_set *set)

   509 {

   510 	struct array *pkgs, *a;

   511 	struct razor_package *pkg, *pkg_end;

   512 	struct razor_entry *entry, *entry_end;

   513 	struct list *r;

   514 	uint32_t *q;

   515 	int count;

   516 

   517 	count = set->files.size / sizeof (struct razor_entry);

   518 	pkgs = zalloc(count * sizeof *pkgs);

   519 	pkg_end = set->packages.data + set->packages.size;

   520 

   521 	for (pkg = set->packages.data; pkg < pkg_end; pkg++) {

   522 		r = list_first(&pkg->files, &set->file_pool);

   523 		while (r) {

   524 			q = array_add(&pkgs[r->data], sizeof *q);

   525 			*q = pkg - (struct razor_package *) set->packages.data;

   526 			r = list_next(r);

   527 		}

   528 	}

   529 

   530 	entry_end = set->files.data + set->files.size;

   531 	a = pkgs;

   532 	for (entry = set->files.data; entry < entry_end; entry++, a++) {

   533 		list_set_array(&entry->packages, &set->package_pool, a, 0);

   534 		array_release(a);

   535 	}

   536 	free(pkgs);

   537 }

   538 

   539 struct razor_set *

   540 razor_merger_commit(struct razor_merger *merger)

   541 {

   542 	struct razor_package *p, *pend;

   543 

   544 	/* As we built the package list, we filled out a bitvector of

   545 	 * the properties that are referenced by the packages in the

   546 	 * new set.  Now we do a parallel loop through the properties

   547 	 * and emit those marked in the bit vector to the new set.  In

   548 	 * the process, we update the bit vector to actually map from

   549 	 * indices in the old property list to indices in the new

   550 	 * property list for both sets. */

   551 

   552 	merge_properties(merger);

   553 	merge_files(merger);

   554 

   555 	/* Now we loop through the packages again and emit the

   556 	 * property lists, remapped to point to the new properties. */

   557 

   558 	pend = merger->set->packages.data + merger->set->packages.size;

   559 	for (p = merger->set->packages.data; p < pend; p++) {

   560 		struct source *src;

   561 

   562 		if (p->flags & UPSTREAM_SOURCE)

   563 			src = &merger->source2;

   564 		else

   565 			src = &merger->source1;

   566 

   567 		emit_properties(&p->properties,

   568 				&src->set->property_pool,

   569 				src->property_map,

   570 				&merger->set->property_pool);

   571 		emit_files(&p->files,

   572 			   &src->set->file_pool,

   573 			   src->file_map,

   574 			   &merger->set->file_pool);

   575 		p->flags &= ~UPSTREAM_SOURCE;

   576 	}

   577 

   578 	rebuild_property_package_lists(merger->set);

   579 	rebuild_file_package_lists(merger->set);

   580 

   581 	merger->committed = 1;

   582 

   583 	return merger->set;

   584 }

   585 

   586 void

   587 razor_merger_package_add_script(struct razor_merger *merger,

   588 				struct razor_package *package,

   589 				enum razor_property_flags script,

   590 				const char *program, const char *body)

   591 {

   592 	uint32_t p, b;

   593 	char *pool;

   594 	struct razor_set *set = merger->set;

   595 	assert ((void *)package >= set->packages.data && \

   596 	    (void *)package < set->packages.data + set->packages.size);

   597 

   598 	p = hashtable_tokenize(&merger->table, program);

   599 	b = hashtable_tokenize(&merger->table, body);

   600 

   601 	pool = merger->set->string_pool.data;

   602 

   603 	switch (script) {

   604 	case RAZOR_PROPERTY_PREUN:

   605 		if (package->preun.program != p) {

   606 			assert(pool[package->preun.program] == '\0');

   607 			package->preun.program = p;

   608 		}

   609 		if (package->preun.body != b) {

   610 			assert(pool[package->preun.body] == '\0');

   611 			package->preun.body = b;

   612 		}

   613 		break;

   614 	case RAZOR_PROPERTY_POSTUN:

   615 		if (package->postun.program != p) {

   616 			assert(pool[package->postun.program] == '\0');

   617 			package->postun.program = p;

   618 		}

   619 		if (package->postun.body != b) {

   620 			assert(pool[package->postun.body] == '\0');

   621 			package->postun.body = b;

   622 		}

   623 		break;

   624 	default:

   625 		break;

   626 	}

   627 }

   628 

   629 void razor_merger_destroy(struct razor_merger *merger)

   630 {

   631 	hashtable_release(&merger->table);

   632 	hashtable_release(&merger->file_table);

   633 	hashtable_release(&merger->details_table);

   634 	free(merger);

   635 }
razor