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Explain to the compiler why the aliasing we're doing is OK.

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MFC after:	1 week
This commit is contained in:
Dag-Erling Smørgrav 2009-06-13 01:22:56 +00:00
parent 51d6ddb5d1
commit 27f2bc9e1b
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=194097
7 changed files with 33 additions and 38 deletions
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16
usr.sbin/nscd/cachelib.c
View File

@ -565,13 +565,13 @@ register_cache_entry(struct cache_ *the_cache,
new_common_entry->params =
(struct cache_entry_params *)&new_common_entry->common_params;
new_common_entry->common_params.entry_name = (char *)calloc(1,
new_common_entry->common_params.cep.entry_name = (char *)calloc(1,
entry_name_size);
assert(new_common_entry->common_params.entry_name != NULL);
strlcpy(new_common_entry->common_params.entry_name,
assert(new_common_entry->common_params.cep.entry_name != NULL);
strlcpy(new_common_entry->common_params.cep.entry_name,
params->entry_name, entry_name_size);
new_common_entry->name =
new_common_entry->common_params.entry_name;
new_common_entry->common_params.cep.entry_name;
HASHTABLE_INIT(&(new_common_entry->items),
struct cache_ht_item_data_, data,
@ -619,12 +619,12 @@ register_cache_entry(struct cache_ *the_cache,
new_mp_entry->params =
(struct cache_entry_params *)&new_mp_entry->mp_params;
new_mp_entry->mp_params.entry_name = (char *)calloc(1,
new_mp_entry->mp_params.cep.entry_name = (char *)calloc(1,
entry_name_size);
assert(new_mp_entry->mp_params.entry_name != NULL);
strlcpy(new_mp_entry->mp_params.entry_name, params->entry_name,
assert(new_mp_entry->mp_params.cep.entry_name != NULL);
strlcpy(new_mp_entry->mp_params.cep.entry_name, params->entry_name,
entry_name_size);
new_mp_entry->name = new_mp_entry->mp_params.entry_name;
new_mp_entry->name = new_mp_entry->mp_params.cep.entry_name;
TAILQ_INIT(&new_mp_entry->ws_head);
TAILQ_INIT(&new_mp_entry->rs_head);

9
usr.sbin/nscd/cachelib.h
View File

@ -87,11 +87,8 @@ struct cache_entry_params
/* params, used for most entries */
struct common_cache_entry_params
{
/* inherited fields */
enum cache_entry_t entry_type;
struct cache_entry_params cep;
/* unique fields */
char *entry_name;
size_t cache_entries_size;
size_t max_elemsize; /* if 0 then no check is made */
@ -105,9 +102,7 @@ struct common_cache_entry_params
/* params, used for multipart entries */
struct mp_cache_entry_params
{
/* inherited fields */
enum cache_entry_t entry_type;
char *entry_name;
struct cache_entry_params cep;
/* unique fields */
size_t max_elemsize; /* if 0 then no check is made */

22
usr.sbin/nscd/config.c
View File

@ -176,14 +176,14 @@ create_configuration_entry(const char *name,
memcpy(&retval->mp_query_timeout, mp_timeout,
sizeof(struct timeval));
asprintf(&retval->positive_cache_params.entry_name, "%s+", name);
assert(retval->positive_cache_params.entry_name != NULL);
asprintf(&retval->positive_cache_params.cep.entry_name, "%s+", name);
assert(retval->positive_cache_params.cep.entry_name != NULL);
asprintf(&retval->negative_cache_params.entry_name, "%s-", name);
assert(retval->negative_cache_params.entry_name != NULL);
asprintf(&retval->negative_cache_params.cep.entry_name, "%s-", name);
assert(retval->negative_cache_params.cep.entry_name != NULL);
asprintf(&retval->mp_cache_params.entry_name, "%s*", name);
assert(retval->mp_cache_params.entry_name != NULL);
asprintf(&retval->mp_cache_params.cep.entry_name, "%s*", name);
assert(retval->mp_cache_params.cep.entry_name != NULL);
TRACE_OUT(create_configuration_entry);
return (retval);
@ -204,7 +204,7 @@ create_def_configuration_entry(const char *name)
TRACE_IN(create_def_configuration_entry);
memset(&positive_params, 0,
sizeof(struct common_cache_entry_params));
positive_params.entry_type = CET_COMMON;
positive_params.cep.entry_type = CET_COMMON;
positive_params.cache_entries_size = DEFAULT_CACHE_HT_SIZE;
positive_params.max_elemsize = DEFAULT_POSITIVE_ELEMENTS_SIZE;
positive_params.satisf_elemsize = DEFAULT_POSITIVE_ELEMENTS_SIZE / 2;
@ -226,7 +226,7 @@ create_def_configuration_entry(const char *name)
memset(&mp_params, 0,
sizeof(struct mp_cache_entry_params));
mp_params.entry_type = CET_MULTIPART;
mp_params.cep.entry_type = CET_MULTIPART;
mp_params.max_elemsize = DEFAULT_MULTIPART_ELEMENTS_SIZE;
mp_params.max_sessions = DEFAULT_MULITPART_SESSIONS_SIZE;
mp_params.max_lifetime.tv_sec = DEFAULT_MULITPART_LIFETIME;
@ -248,9 +248,9 @@ destroy_configuration_entry(struct configuration_entry *entry)
pthread_mutex_destroy(&entry->negative_cache_lock);
pthread_mutex_destroy(&entry->mp_cache_lock);
free(entry->name);
free(entry->positive_cache_params.entry_name);
free(entry->negative_cache_params.entry_name);
free(entry->mp_cache_params.entry_name);
free(entry->positive_cache_params.cep.entry_name);
free(entry->negative_cache_params.cep.entry_name);
free(entry->mp_cache_params.cep.entry_name);
free(entry->mp_cache_entries);
free(entry);
TRACE_OUT(destroy_configuration_entry);

4
usr.sbin/nscd/mp_rs_query.c
View File

@ -198,7 +198,7 @@ on_mp_read_session_request_process(struct query_state *qstate)
if (qstate->config_entry->perform_actual_lookups != 0)
dec_cache_entry_name = strdup(
qstate->config_entry->mp_cache_params.entry_name);
qstate->config_entry->mp_cache_params.cep.entry_name);
else {
#ifdef NS_NSCD_EID_CHECKING
if (check_query_eids(qstate) != 0) {
@ -208,7 +208,7 @@ on_mp_read_session_request_process(struct query_state *qstate)
#endif
asprintf(&dec_cache_entry_name, "%s%s", qstate->eid_str,
qstate->config_entry->mp_cache_params.entry_name);
qstate->config_entry->mp_cache_params.cep.entry_name);
}
assert(dec_cache_entry_name != NULL);

8
usr.sbin/nscd/mp_ws_query.c
View File

@ -216,7 +216,7 @@ on_mp_write_session_request_process(struct query_state *qstate)
* cache entries - each with its own decorated name.
*/
asprintf(&dec_cache_entry_name, "%s%s", qstate->eid_str,
qstate->config_entry->mp_cache_params.entry_name);
qstate->config_entry->mp_cache_params.cep.entry_name);
assert(dec_cache_entry_name != NULL);
configuration_lock_rdlock(s_configuration);
@ -522,12 +522,12 @@ cache_entry register_new_mp_cache_entry(struct query_state *qstate,
configuration_lock_entry(qstate->config_entry, CELT_MULTIPART);
configuration_lock_wrlock(s_configuration);
en_bkp = qstate->config_entry->mp_cache_params.entry_name;
qstate->config_entry->mp_cache_params.entry_name =
en_bkp = qstate->config_entry->mp_cache_params.cep.entry_name;
qstate->config_entry->mp_cache_params.cep.entry_name =
(char *)dec_cache_entry_name;
register_cache_entry(s_cache, (struct cache_entry_params *)
&qstate->config_entry->mp_cache_params);
qstate->config_entry->mp_cache_params.entry_name = en_bkp;
qstate->config_entry->mp_cache_params.cep.entry_name = en_bkp;
configuration_unlock(s_configuration);
configuration_lock_rdlock(s_configuration);

4
usr.sbin/nscd/nscd.c
View File

@ -123,14 +123,14 @@ init_cache_(struct configuration *config)
res = register_cache_entry(retval, (struct cache_entry_params *)
&config_entry->positive_cache_params);
config_entry->positive_cache_entry = find_cache_entry(retval,
config_entry->positive_cache_params.entry_name);
config_entry->positive_cache_params.cep.entry_name);
assert(config_entry->positive_cache_entry !=
INVALID_CACHE_ENTRY);
res = register_cache_entry(retval, (struct cache_entry_params *)
&config_entry->negative_cache_params);
config_entry->negative_cache_entry = find_cache_entry(retval,
config_entry->negative_cache_params.entry_name);
config_entry->negative_cache_params.cep.entry_name);
assert(config_entry->negative_cache_entry !=
INVALID_CACHE_ENTRY);
}

8
usr.sbin/nscd/query.c
View File

@ -437,7 +437,7 @@ on_write_request_process(struct query_state *qstate)
configuration_lock_rdlock(s_configuration);
c_entry = find_cache_entry(s_cache,
qstate->config_entry->positive_cache_params.entry_name);
qstate->config_entry->positive_cache_params.cep.entry_name);
configuration_unlock(s_configuration);
if (c_entry != NULL) {
configuration_lock_entry(qstate->config_entry, CELT_POSITIVE);
@ -518,7 +518,7 @@ on_negative_write_request_process(struct query_state *qstate)
configuration_lock_rdlock(s_configuration);
c_entry = find_cache_entry(s_cache,
qstate->config_entry->negative_cache_params.entry_name);
qstate->config_entry->negative_cache_params.cep.entry_name);
configuration_unlock(s_configuration);
if (c_entry != NULL) {
configuration_lock_entry(qstate->config_entry, CELT_NEGATIVE);
@ -710,9 +710,9 @@ on_read_request_process(struct query_state *qstate)
configuration_lock_rdlock(s_configuration);
c_entry = find_cache_entry(s_cache,
qstate->config_entry->positive_cache_params.entry_name);
qstate->config_entry->positive_cache_params.cep.entry_name);
neg_c_entry = find_cache_entry(s_cache,
qstate->config_entry->negative_cache_params.entry_name);
qstate->config_entry->negative_cache_params.cep.entry_name);
configuration_unlock(s_configuration);
if ((c_entry != NULL) && (neg_c_entry != NULL)) {
configuration_lock_entry(qstate->config_entry, CELT_POSITIVE);