/*
* Mapper function is used to avoid multiple connections for each session
* write or read requests. After processing the request, it does not close
* the connection, but waits for the next request.
*/
static int
on_mp_write_session_mapper(struct query_state *qstate)
{
ssize_t result;
int elem_type;
TRACE_IN(on_mp_write_session_mapper);
if (qstate->kevent_watermark == 0) {
qstate->kevent_watermark = sizeof(int);
} else {
result = qstate->read_func(qstate, &elem_type, sizeof(int));
if (result != sizeof(int)) {
LOG_ERR_3("on_mp_write_session_mapper",
"read failed");
TRACE_OUT(on_mp_write_session_mapper);
return (-1);
}
switch (elem_type) {
case CET_MP_WRITE_SESSION_WRITE_REQUEST:
qstate->kevent_watermark = sizeof(size_t);
qstate->process_func =
on_mp_write_session_write_request_read1;
break;
case CET_MP_WRITE_SESSION_ABANDON_NOTIFICATION:
qstate->kevent_watermark = 0;
qstate->process_func =
on_mp_write_session_abandon_notification;
break;
case CET_MP_WRITE_SESSION_CLOSE_NOTIFICATION:
qstate->kevent_watermark = 0;
qstate->process_func =
on_mp_write_session_close_notification;
break;
default:
qstate->kevent_watermark = 0;
qstate->process_func = NULL;
LOG_ERR_2("on_mp_write_session_mapper",
"unknown element type");
TRACE_OUT(on_mp_write_session_mapper);
return (-1);
}
}
TRACE_OUT(on_mp_write_session_mapper);
return (0);
}
static int
on_transform_request_process(struct query_state *qstate)
{
struct cache_transform_request *transform_request;
struct cache_transform_response *transform_response;
struct configuration_entry *config_entry;
size_t i, size;
TRACE_IN(on_transform_request_process);
init_comm_element(&qstate->response, CET_TRANSFORM_RESPONSE);
transform_response = get_cache_transform_response(&qstate->response);
transform_request = get_cache_transform_request(&qstate->request);
switch (transform_request->transformation_type) {
case TT_USER:
if (transform_request->entry == NULL) {
size = configuration_get_entries_size(s_configuration);
for (i = 0; i < size; ++i) {
config_entry = configuration_get_entry(
s_configuration, i);
if (config_entry->perform_actual_lookups == 0)
clear_config_entry_part(config_entry,
qstate->eid_str, qstate->eid_str_length);
}
} else {
qstate->config_entry = configuration_find_entry(
s_configuration, transform_request->entry);
if (qstate->config_entry == NULL) {
LOG_ERR_2("transform_request",
"can't find configuration"
" entry '%s'. aborting request",
transform_request->entry);
transform_response->error_code = -1;
goto fin;
}
if (qstate->config_entry->perform_actual_lookups != 0) {
LOG_ERR_2("transform_request",
"can't transform the cache entry %s"
", because it ised for actual lookups",
transform_request->entry);
transform_response->error_code = -1;
goto fin;
}
clear_config_entry_part(qstate->config_entry,
qstate->eid_str, qstate->eid_str_length);
}
break;
case TT_ALL:
if (qstate->euid != 0)
transform_response->error_code = -1;
else {
if (transform_request->entry == NULL) {
size = configuration_get_entries_size(
s_configuration);
for (i = 0; i < size; ++i) {
clear_config_entry(
configuration_get_entry(
s_configuration, i));
}
} else {
qstate->config_entry = configuration_find_entry(
s_configuration,
transform_request->entry);
if (qstate->config_entry == NULL) {
LOG_ERR_2("transform_request",
"can't find configuration"
" entry '%s'. aborting request",
transform_request->entry);
transform_response->error_code = -1;
goto fin;
}
clear_config_entry(qstate->config_entry);
}
}
break;
default:
transform_response->error_code = -1;
}
fin:
qstate->kevent_watermark = 0;
qstate->process_func = on_transform_response_write1;
TRACE_OUT(on_transform_request_process);
return (0);
}
static int
on_read_request_process(struct query_state *qstate)
{
struct cache_read_request *read_request;
struct cache_read_response *read_response;
cache_entry c_entry, neg_c_entry;
struct agent *lookup_agent;
struct common_agent *c_agent;
int res;
TRACE_IN(on_read_request_process);
init_comm_element(&qstate->response, CET_READ_RESPONSE);
read_response = get_cache_read_response(&qstate->response);
read_request = get_cache_read_request(&qstate->request);
qstate->config_entry = configuration_find_entry(
s_configuration, read_request->entry);
if (qstate->config_entry == NULL) {
read_response->error_code = ENOENT;
LOG_ERR_2("read_request",
"can't find configuration "
"entry '%s'. aborting request", read_request->entry);
goto fin;
}
if (qstate->config_entry->enabled == 0) {
read_response->error_code = EACCES;
LOG_ERR_2("read_request",
"configuration entry '%s' is disabled",
read_request->entry);
goto fin;
}
/*
* if we perform lookups by ourselves, then we don't need to separate
* cache entries by euid and egid
*/
if (qstate->config_entry->perform_actual_lookups != 0)
memset(read_request->cache_key, 0, qstate->eid_str_length);
else {
#ifdef NS_NSCD_EID_CHECKING
if (check_query_eids(qstate) != 0) {
/* if the lookup is not self-performing, we check for clients euid/egid */
read_response->error_code = EPERM;
goto fin;
}
#endif
}
configuration_lock_rdlock(s_configuration);
c_entry = find_cache_entry(s_cache,
qstate->config_entry->positive_cache_params.entry_name);
neg_c_entry = find_cache_entry(s_cache,
qstate->config_entry->negative_cache_params.entry_name);
configuration_unlock(s_configuration);
if ((c_entry != NULL) && (neg_c_entry != NULL)) {
configuration_lock_entry(qstate->config_entry, CELT_POSITIVE);
qstate->config_entry->positive_cache_entry = c_entry;
read_response->error_code = cache_read(c_entry,
read_request->cache_key,
read_request->cache_key_size, NULL,
&read_response->data_size);
if (read_response->error_code == -2) {
read_response->data = (char *)malloc(
read_response->data_size);
assert(read_response != NULL);
read_response->error_code = cache_read(c_entry,
read_request->cache_key,
read_request->cache_key_size,
read_response->data,
&read_response->data_size);
}
configuration_unlock_entry(qstate->config_entry, CELT_POSITIVE);
configuration_lock_entry(qstate->config_entry, CELT_NEGATIVE);
qstate->config_entry->negative_cache_entry = neg_c_entry;
if (read_response->error_code == -1) {
read_response->error_code = cache_read(neg_c_entry,
read_request->cache_key,
read_request->cache_key_size, NULL,
&read_response->data_size);
if (read_response->error_code == -2) {
read_response->error_code = 0;
read_response->data = NULL;
read_response->data_size = 0;
}
}
configuration_unlock_entry(qstate->config_entry, CELT_NEGATIVE);
if ((read_response->error_code == -1) &&
(qstate->config_entry->perform_actual_lookups != 0)) {
free(read_response->data);
read_response->data = NULL;
read_response->data_size = 0;
lookup_agent = find_agent(s_agent_table,
read_request->entry, COMMON_AGENT);
if ((lookup_agent != NULL) &&
(lookup_agent->type == COMMON_AGENT)) {
c_agent = (struct common_agent *)lookup_agent;
res = c_agent->lookup_func(
read_request->cache_key +
qstate->eid_str_length,
read_request->cache_key_size -
qstate->eid_str_length,
&read_response->data,
&read_response->data_size);
if (res == NS_SUCCESS) {
read_response->error_code = 0;
configuration_lock_entry(
qstate->config_entry,
CELT_POSITIVE);
cache_write(c_entry,
read_request->cache_key,
read_request->cache_key_size,
read_response->data,
read_response->data_size);
configuration_unlock_entry(
qstate->config_entry,
CELT_POSITIVE);
} else if ((res == NS_NOTFOUND) ||
(res == NS_RETURN)) {
configuration_lock_entry(
qstate->config_entry,
CELT_NEGATIVE);
cache_write(neg_c_entry,
read_request->cache_key,
read_request->cache_key_size,
negative_data,
sizeof(negative_data));
configuration_unlock_entry(
qstate->config_entry,
CELT_NEGATIVE);
read_response->error_code = 0;
read_response->data = NULL;
read_response->data_size = 0;
}
}
}
if ((qstate->config_entry->common_query_timeout.tv_sec != 0) ||
(qstate->config_entry->common_query_timeout.tv_usec != 0))
memcpy(&qstate->timeout,
&qstate->config_entry->common_query_timeout,
sizeof(struct timeval));
} else
read_response->error_code = -1;
fin:
qstate->kevent_filter = EVFILT_WRITE;
if (read_response->error_code == 0)
qstate->kevent_watermark = sizeof(int) + sizeof(size_t);
else
qstate->kevent_watermark = sizeof(int);
qstate->process_func = on_read_response_write1;
TRACE_OUT(on_read_request_process);
return (0);
}
static int
on_negative_write_request_process(struct query_state *qstate)
{
struct cache_write_request *write_request;
struct cache_write_response *write_response;
cache_entry c_entry;
TRACE_IN(on_negative_write_request_process);
init_comm_element(&qstate->response, CET_WRITE_RESPONSE);
write_response = get_cache_write_response(&qstate->response);
write_request = get_cache_write_request(&qstate->request);
qstate->config_entry = configuration_find_entry(
s_configuration, write_request->entry);
if (qstate->config_entry == NULL) {
write_response->error_code = ENOENT;
LOG_ERR_2("negative_write_request",
"can't find configuration"
" entry '%s'. aborting request", write_request->entry);
goto fin;
}
if (qstate->config_entry->enabled == 0) {
write_response->error_code = EACCES;
LOG_ERR_2("negative_write_request",
"configuration entry '%s' is disabled",
write_request->entry);
goto fin;
}
if (qstate->config_entry->perform_actual_lookups != 0) {
write_response->error_code = EOPNOTSUPP;
LOG_ERR_2("negative_write_request",
"entry '%s' performs lookups by itself: "
"can't write to it", write_request->entry);
goto fin;
} else {
#ifdef NS_NSCD_EID_CHECKING
if (check_query_eids(qstate) != 0) {
write_response->error_code = EPERM;
goto fin;
}
#endif
}
configuration_lock_rdlock(s_configuration);
c_entry = find_cache_entry(s_cache,
qstate->config_entry->negative_cache_params.entry_name);
configuration_unlock(s_configuration);
if (c_entry != NULL) {
configuration_lock_entry(qstate->config_entry, CELT_NEGATIVE);
qstate->config_entry->negative_cache_entry = c_entry;
write_response->error_code = cache_write(c_entry,
write_request->cache_key,
write_request->cache_key_size,
negative_data,
sizeof(negative_data));
configuration_unlock_entry(qstate->config_entry, CELT_NEGATIVE);
if ((qstate->config_entry->common_query_timeout.tv_sec != 0) ||
(qstate->config_entry->common_query_timeout.tv_usec != 0))
memcpy(&qstate->timeout,
&qstate->config_entry->common_query_timeout,
sizeof(struct timeval));
} else
write_response->error_code = -1;
fin:
qstate->kevent_filter = EVFILT_WRITE;
qstate->kevent_watermark = sizeof(int);
qstate->process_func = on_write_response_write1;
TRACE_OUT(on_negative_write_request_process);
return (0);
}
static int
on_mp_write_session_request_process(struct query_state *qstate)
{
struct cache_mp_write_session_request *c_mp_ws_request;
struct cache_mp_write_session_response *c_mp_ws_response;
cache_mp_write_session ws;
cache_entry c_entry;
char *dec_cache_entry_name;
TRACE_IN(on_mp_write_session_request_process);
init_comm_element(&qstate->response, CET_MP_WRITE_SESSION_RESPONSE);
c_mp_ws_response = get_cache_mp_write_session_response(
&qstate->response);
c_mp_ws_request = get_cache_mp_write_session_request(&qstate->request);
qstate->config_entry = configuration_find_entry(
s_configuration, c_mp_ws_request->entry);
if (qstate->config_entry == NULL) {
c_mp_ws_response->error_code = ENOENT;
LOG_ERR_2("write_session_request",
"can't find configuration entry '%s'. "
"aborting request", c_mp_ws_request->entry);
goto fin;
}
if (qstate->config_entry->enabled == 0) {
c_mp_ws_response->error_code = EACCES;
LOG_ERR_2("write_session_request",
"configuration entry '%s' is disabled",
c_mp_ws_request->entry);
goto fin;
}
if (qstate->config_entry->perform_actual_lookups != 0) {
c_mp_ws_response->error_code = EOPNOTSUPP;
LOG_ERR_2("write_session_request",
"entry '%s' performs lookups by itself: "
"can't write to it", c_mp_ws_request->entry);
goto fin;
} else {
#ifdef NS_NSCD_EID_CHECKING
if (check_query_eids(qstate) != 0) {
c_mp_ws_response->error_code = EPERM;
goto fin;
}
#endif
}
/*
* All multipart entries are separated by their name decorations.
* For one configuration entry there will be a lot of multipart
* cache entries - each with its own decorated name.
*/
asprintf(&dec_cache_entry_name, "%s%s", qstate->eid_str,
qstate->config_entry->mp_cache_params.cep.entry_name);
assert(dec_cache_entry_name != NULL);
configuration_lock_rdlock(s_configuration);
c_entry = find_cache_entry(s_cache,
dec_cache_entry_name);
configuration_unlock(s_configuration);
if (c_entry == INVALID_CACHE_ENTRY)
c_entry = register_new_mp_cache_entry(qstate,
dec_cache_entry_name);
free(dec_cache_entry_name);
assert(c_entry != NULL);
configuration_lock_entry(qstate->config_entry, CELT_MULTIPART);
ws = open_cache_mp_write_session(c_entry);
if (ws == INVALID_CACHE_MP_WRITE_SESSION)
c_mp_ws_response->error_code = -1;
else {
qstate->mdata = ws;
qstate->destroy_func = on_mp_write_session_destroy;
if ((qstate->config_entry->mp_query_timeout.tv_sec != 0) ||
(qstate->config_entry->mp_query_timeout.tv_usec != 0))
memcpy(&qstate->timeout,
&qstate->config_entry->mp_query_timeout,
sizeof(struct timeval));
}
configuration_unlock_entry(qstate->config_entry, CELT_MULTIPART);
fin:
qstate->process_func = on_mp_write_session_response_write1;
qstate->kevent_watermark = sizeof(int);
qstate->kevent_filter = EVFILT_WRITE;
TRACE_OUT(on_mp_write_session_request_process);
return (0);
}
/*
* The main configuration routine. Its implementation is hugely inspired by the
* the same routine implementation in Solaris NSCD.
*/
int
parse_config_file(struct configuration *config,
const char *fname, char const **error_str, int *error_line)
{
FILE *fin;
char buffer[255];
char *fields[128];
int field_count, line_num, value;
int res;
TRACE_IN(parse_config_file);
assert(config != NULL);
assert(fname != NULL);
fin = fopen(fname, "r");
if (fin == NULL) {
TRACE_OUT(parse_config_file);
return (-1);
}
res = 0;
line_num = 0;
memset(buffer, 0, sizeof(buffer));
while ((res == 0) && (fgets(buffer, sizeof(buffer) - 1, fin) != NULL)) {
field_count = strbreak(buffer, fields, sizeof(fields));
++line_num;
if (field_count == 0)
continue;
switch (fields[0][0]) {
case '#':
case '\0':
continue;
case 'e':
if ((field_count == 3) &&
(strcmp(fields[0], "enable-cache") == 0) &&
(check_cachename(fields[1]) == 0) &&
((value = get_yesno(fields[2])) != -1)) {
enable_cache(config, fields[1], value);
continue;
}
break;
case 'd':
if ((field_count == 2) &&
(strcmp(fields[0], "debug-level") == 0) &&
((value = get_number(fields[1], 0, 10)) != -1)) {
continue;
}
break;
case 'p':
if ((field_count == 3) &&
(strcmp(fields[0], "positive-time-to-live") == 0) &&
(check_cachename(fields[1]) == 0) &&
((value = get_number(fields[2], 0, -1)) != -1)) {
set_positive_time_to_live(config,
fields[1], value);
continue;
} else if ((field_count == 3) &&
(strcmp(fields[0], "positive-confidence-threshold") == 0) &&
((value = get_number(fields[2], 1, -1)) != -1)) {
set_positive_confidence_threshold(config,
fields[1], value);
continue;
} else if ((field_count == 3) &&
(strcmp(fields[0], "positive-policy") == 0) &&
(check_cachename(fields[1]) == 0) &&
((value = get_policy(fields[2])) != -1)) {
set_positive_policy(config, fields[1], value);
continue;
} else if ((field_count == 3) &&
(strcmp(fields[0], "perform-actual-lookups") == 0) &&
(check_cachename(fields[1]) == 0) &&
((value = get_yesno(fields[2])) != -1)) {
set_perform_actual_lookups(config, fields[1],
value);
continue;
}
break;
case 'n':
if ((field_count == 3) &&
(strcmp(fields[0], "negative-time-to-live") == 0) &&
(check_cachename(fields[1]) == 0) &&
((value = get_number(fields[2], 0, -1)) != -1)) {
set_negative_time_to_live(config,
fields[1], value);
continue;
} else if ((field_count == 3) &&
(strcmp(fields[0], "negative-confidence-threshold") == 0) &&
((value = get_number(fields[2], 1, -1)) != -1)) {
set_negative_confidence_threshold(config,
fields[1], value);
continue;
} else if ((field_count == 3) &&
(strcmp(fields[0], "negative-policy") == 0) &&
(check_cachename(fields[1]) == 0) &&
((value = get_policy(fields[2])) != -1)) {
set_negative_policy(config,
fields[1], value);
continue;
}
break;
case 's':
if ((field_count == 3) &&
(strcmp(fields[0], "suggested-size") == 0) &&
(check_cachename(fields[1]) == 0) &&
((value = get_number(fields[2], 1, -1)) != -1)) {
set_suggested_size(config, fields[1], value);
continue;
}
break;
case 't':
if ((field_count == 2) &&
(strcmp(fields[0], "threads") == 0) &&
((value = get_number(fields[1], 1, -1)) != -1)) {
set_threads_num(config, value);
continue;
}
break;
case 'k':
if ((field_count == 3) &&
(strcmp(fields[0], "keep-hot-count") == 0) &&
(check_cachename(fields[1]) == 0) &&
((value = get_number(fields[2], 0, -1)) != -1)) {
set_keep_hot_count(config,
fields[1], value);
continue;
}
break;
case 'c':
if ((field_count == 3) &&
(strcmp(fields[0], "check-files") == 0) &&
(check_cachename(fields[1]) == 0) &&
((value = get_yesno(fields[2])) != -1)) {
check_files(config,
fields[1], value);
continue;
}
break;
default:
break;
}
LOG_ERR_2("config file parser", "error in file "
"%s on line %d", fname, line_num);
*error_str = "syntax error";
*error_line = line_num;
res = -1;
}
fclose(fin);
TRACE_OUT(parse_config_file);
return (res);
}
static struct configuration_entry *
create_configuration_entry(const char *name,
struct timeval const *common_timeout,
struct timeval const *mp_timeout,
struct common_cache_entry_params const *positive_params,
struct common_cache_entry_params const *negative_params,
struct mp_cache_entry_params const *mp_params)
{
struct configuration_entry *retval;
size_t size;
int res;
TRACE_IN(create_configuration_entry);
assert(name != NULL);
assert(positive_params != NULL);
assert(negative_params != NULL);
assert(mp_params != NULL);
retval = calloc(1,
sizeof(*retval));
assert(retval != NULL);
res = pthread_mutex_init(&retval->positive_cache_lock, NULL);
if (res != 0) {
free(retval);
LOG_ERR_2("create_configuration_entry",
"can't create positive cache lock");
TRACE_OUT(create_configuration_entry);
return (NULL);
}
res = pthread_mutex_init(&retval->negative_cache_lock, NULL);
if (res != 0) {
pthread_mutex_destroy(&retval->positive_cache_lock);
free(retval);
LOG_ERR_2("create_configuration_entry",
"can't create negative cache lock");
TRACE_OUT(create_configuration_entry);
return (NULL);
}
res = pthread_mutex_init(&retval->mp_cache_lock, NULL);
if (res != 0) {
pthread_mutex_destroy(&retval->positive_cache_lock);
pthread_mutex_destroy(&retval->negative_cache_lock);
free(retval);
LOG_ERR_2("create_configuration_entry",
"can't create negative cache lock");
TRACE_OUT(create_configuration_entry);
return (NULL);
}
memcpy(&retval->positive_cache_params, positive_params,
sizeof(struct common_cache_entry_params));
memcpy(&retval->negative_cache_params, negative_params,
sizeof(struct common_cache_entry_params));
memcpy(&retval->mp_cache_params, mp_params,
sizeof(struct mp_cache_entry_params));
size = strlen(name);
retval->name = calloc(1, size + 1);
assert(retval->name != NULL);
memcpy(retval->name, name, size);
memcpy(&retval->common_query_timeout, common_timeout,
sizeof(struct timeval));
memcpy(&retval->mp_query_timeout, mp_timeout,
sizeof(struct timeval));
asprintf(&retval->positive_cache_params.cep.entry_name, "%s+", name);
assert(retval->positive_cache_params.cep.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.cep.entry_name, "%s*", name);
assert(retval->mp_cache_params.cep.entry_name != NULL);
TRACE_OUT(create_configuration_entry);
return (retval);
}
static int
on_mp_read_session_request_process(struct query_state *qstate)
{
struct cache_mp_read_session_request *c_mp_rs_request;
struct cache_mp_read_session_response *c_mp_rs_response;
cache_mp_read_session rs;
cache_entry c_entry;
char *dec_cache_entry_name;
char *buffer;
size_t buffer_size;
cache_mp_write_session ws;
struct agent *lookup_agent;
struct multipart_agent *mp_agent;
void *mdata;
int res;
TRACE_IN(on_mp_read_session_request_process);
init_comm_element(&qstate->response, CET_MP_READ_SESSION_RESPONSE);
c_mp_rs_response = get_cache_mp_read_session_response(
&qstate->response);
c_mp_rs_request = get_cache_mp_read_session_request(&qstate->request);
qstate->config_entry = configuration_find_entry(
s_configuration, c_mp_rs_request->entry);
if (qstate->config_entry == NULL) {
c_mp_rs_response->error_code = ENOENT;
LOG_ERR_2("read_session_request",
"can't find configuration entry '%s'."
" aborting request", c_mp_rs_request->entry);
goto fin;
}
if (qstate->config_entry->enabled == 0) {
c_mp_rs_response->error_code = EACCES;
LOG_ERR_2("read_session_request",
"configuration entry '%s' is disabled",
c_mp_rs_request->entry);
goto fin;
}
if (qstate->config_entry->perform_actual_lookups != 0)
dec_cache_entry_name = strdup(
qstate->config_entry->mp_cache_params.cep.entry_name);
else {
#ifdef NS_NSCD_EID_CHECKING
if (check_query_eids(qstate) != 0) {
c_mp_rs_response->error_code = EPERM;
goto fin;
}
#endif
asprintf(&dec_cache_entry_name, "%s%s", qstate->eid_str,
qstate->config_entry->mp_cache_params.cep.entry_name);
}
assert(dec_cache_entry_name != NULL);
configuration_lock_rdlock(s_configuration);
c_entry = find_cache_entry(s_cache, dec_cache_entry_name);
configuration_unlock(s_configuration);
if ((c_entry == INVALID_CACHE) &&
(qstate->config_entry->perform_actual_lookups != 0))
c_entry = register_new_mp_cache_entry(qstate,
dec_cache_entry_name);
free(dec_cache_entry_name);
if (c_entry != INVALID_CACHE_ENTRY) {
configuration_lock_entry(qstate->config_entry, CELT_MULTIPART);
rs = open_cache_mp_read_session(c_entry);
configuration_unlock_entry(qstate->config_entry,
CELT_MULTIPART);
if ((rs == INVALID_CACHE_MP_READ_SESSION) &&
(qstate->config_entry->perform_actual_lookups != 0)) {
lookup_agent = find_agent(s_agent_table,
c_mp_rs_request->entry, MULTIPART_AGENT);
if ((lookup_agent != NULL) &&
(lookup_agent->type == MULTIPART_AGENT)) {
mp_agent = (struct multipart_agent *)
lookup_agent;
mdata = mp_agent->mp_init_func();
/*
* Multipart agents read the whole snapshot
* of the data at one time.
*/
configuration_lock_entry(qstate->config_entry,
CELT_MULTIPART);
ws = open_cache_mp_write_session(c_entry);
configuration_unlock_entry(qstate->config_entry,
CELT_MULTIPART);
if (ws != NULL) {
do {
buffer = NULL;
res = mp_agent->mp_lookup_func(&buffer,
&buffer_size,
mdata);
if ((res & NS_TERMINATE) &&
(buffer != NULL)) {
configuration_lock_entry(
qstate->config_entry,
CELT_MULTIPART);
if (cache_mp_write(ws, buffer,
buffer_size) != 0) {
abandon_cache_mp_write_session(ws);
ws = NULL;
}
configuration_unlock_entry(
qstate->config_entry,
CELT_MULTIPART);
free(buffer);
buffer = NULL;
} else {
configuration_lock_entry(
qstate->config_entry,
CELT_MULTIPART);
close_cache_mp_write_session(ws);
configuration_unlock_entry(
qstate->config_entry,
CELT_MULTIPART);
free(buffer);
buffer = NULL;
}
} while ((res & NS_TERMINATE) &&
(ws != NULL));
}
configuration_lock_entry(qstate->config_entry,
CELT_MULTIPART);
rs = open_cache_mp_read_session(c_entry);
configuration_unlock_entry(qstate->config_entry,
CELT_MULTIPART);
}
}
if (rs == INVALID_CACHE_MP_READ_SESSION)
c_mp_rs_response->error_code = -1;
else {
qstate->mdata = rs;
qstate->destroy_func = on_mp_read_session_destroy;
configuration_lock_entry(qstate->config_entry,
CELT_MULTIPART);
if ((qstate->config_entry->mp_query_timeout.tv_sec != 0) ||
(qstate->config_entry->mp_query_timeout.tv_usec != 0))
memcpy(&qstate->timeout,
&qstate->config_entry->mp_query_timeout,
sizeof(struct timeval));
configuration_unlock_entry(qstate->config_entry,
CELT_MULTIPART);
}
} else
c_mp_rs_response->error_code = -1;
fin:
qstate->process_func = on_mp_read_session_response_write1;
qstate->kevent_watermark = sizeof(int);
qstate->kevent_filter = EVFILT_WRITE;
TRACE_OUT(on_mp_read_session_request_process);
return (0);
}
