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libxbps: do not insert/delete while traversing a (double) locked iterator.

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This commit is contained in:
Juan RP 2012-11-30 10:04:36 +01:00
parent b9136c61c9
commit 731c903026
1 changed files with 12 additions and 25 deletions
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37
lib/transaction_package_replace.c
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@ -39,44 +39,33 @@ xbps_transaction_package_replace(struct xbps_handle *xhp)
prop_array_t replaces, instd_reqby, unsorted;
prop_dictionary_t instd, reppkgd, filesd;
prop_object_t obj, obj2;
prop_object_iterator_t iter, iter2;
prop_object_iterator_t iter;
const char *pattern, *pkgname, *curpkgname, *pkgver, *curpkgver;
char *buf;
bool instd_auto, sr;
size_t i;
unsorted = prop_dictionary_get(xhp->transd, "unsorted_deps");
iter = prop_array_iterator(unsorted);
assert(iter);
while ((obj = prop_object_iterator_next(iter))) {
for (i = 0; i < prop_array_count(unsorted); i++) {
obj = prop_array_get(unsorted, i);
replaces = prop_dictionary_get(obj, "replaces");
if (replaces == NULL || prop_array_count(replaces) == 0)
continue;
iter2 = prop_array_iterator(replaces);
if (iter2 == NULL) {
prop_object_iterator_release(iter);
return ENOMEM;
}
iter = prop_array_iterator(replaces);
assert(iter);
while ((obj2 = prop_object_iterator_next(iter2)) != NULL) {
while ((obj2 = prop_object_iterator_next(iter)) != NULL) {
pattern = prop_string_cstring_nocopy(obj2);
assert(pattern != NULL);
/*
* Find the installed package that matches the pattern
* to be replaced.
*/
instd = xbps_pkgdb_get_pkg(xhp, pattern);
if (instd == NULL) {
/*
* No package installed has been matched,
* try looking for a virtual package.
*/
instd = xbps_pkgdb_get_virtualpkg(xhp, pattern);
if (instd == NULL)
continue;
}
if (((instd = xbps_pkgdb_get_pkg(xhp, pattern)) == NULL) &&
((instd = xbps_pkgdb_get_virtualpkg(xhp, pattern)) == NULL))
continue;
prop_dictionary_get_cstring_nocopy(obj,
"pkgname", &pkgname);
prop_dictionary_get_cstring_nocopy(obj,
@ -171,7 +160,6 @@ xbps_transaction_package_replace(struct xbps_handle *xhp)
free(buf);
prop_object_release(filesd);
prop_object_iterator_release(iter);
prop_object_iterator_release(iter2);
return errno;
}
prop_object_release(filesd);
@ -185,9 +173,8 @@ xbps_transaction_package_replace(struct xbps_handle *xhp)
"transaction", "remove");
prop_array_add(unsorted, instd);
}
prop_object_iterator_release(iter2);
prop_object_iterator_release(iter);
}
prop_object_iterator_release(iter);
return 0;
}