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Protect against object being cleaned while waiting for a query response

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svn path=/trunk/netsurf/; revision=11894
This commit is contained in:
John Mark Bell 2011-03-03 00:40:50 +00:00
parent cfe6b8cc66
commit 60b5039c33
1 changed files with 15 additions and 3 deletions
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18
content/llcache.c
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@ -84,6 +84,8 @@ typedef struct {
uint32_t redirect_count; /**< Count of redirects followed */
bool tried_with_auth; /**< Whether we've tried with auth */
bool outstanding_query; /**< Waiting for a query response */
} llcache_fetch_ctx;
typedef enum {
@ -1634,7 +1636,8 @@ nserror llcache_clean(void)
/* The candidate count of uncacheable objects is always 0 */
if (object->users == NULL && object->candidate_count == 0 &&
object->fetch.fetch == NULL) {
object->fetch.fetch == NULL &&
object->fetch.outstanding_query == false) {
#ifdef LLCACHE_TRACE
LOG(("Found victim %p", object));
#endif
@ -1652,7 +1655,8 @@ nserror llcache_clean(void)
if (object->users == NULL && object->candidate_count == 0 &&
llcache_object_is_fresh(object) == false &&
object->fetch.fetch == NULL) {
object->fetch.fetch == NULL &&
object->fetch.outstanding_query == false) {
#ifdef LLCACHE_TRACE
LOG(("Found victim %p", object));
#endif
@ -1673,7 +1677,9 @@ nserror llcache_clean(void)
if (object->users == NULL &&
object->candidate_count == 0 &&
object->fetch.fetch == NULL) {
object->fetch.fetch == NULL &&
object->fetch.outstanding_query ==
false) {
#ifdef LLCACHE_TRACE
LOG(("Found victim %p", object));
#endif
@ -1747,6 +1753,8 @@ nserror llcache_query_handle_response(bool proceed, void *cbpw)
llcache_event event;
llcache_object *object = cbpw;
object->fetch.outstanding_query = false;
/* Refetch, using existing fetch parameters, if client allows us to */
if (proceed)
return llcache_object_refetch(object);
@ -2451,6 +2459,8 @@ nserror llcache_fetch_auth(llcache_object *object, const char *realm)
query.url = object->url;
query.data.auth.realm = realm;
object->fetch.outstanding_query = true;
error = query_cb(&query, query_cb_pw,
llcache_query_handle_response, object);
} else {
@ -2504,6 +2514,8 @@ nserror llcache_fetch_cert_error(llcache_object *object,
query.data.ssl.certs = certs;
query.data.ssl.num = num;
object->fetch.outstanding_query = true;
error = query_cb(&query, query_cb_pw,
llcache_query_handle_response, object);
} else {