static nxweb_result list_on_request(nxweb_http_server_connection* conn, nxweb_http_request* req, nxweb_http_response* resp)
{
nxweb_set_response_content_type(resp, "text/plain");
const char *name_space = nx_simple_map_get_nocase( req->parameters, "namespace" );
const char *prefix = nx_simple_map_get_nocase( req->parameters, "prefix" );
char kc_prefix[1024] = {0};
if( name_space ){
strncpy( kc_prefix, name_space, sizeof( kc_prefix )-3 );
strcat( kc_prefix, ":/" );
if (prefix){ strncat(kc_prefix, prefix, sizeof(kc_prefix)-strlen(kc_prefix)-1); }
}
printf("list prefix:%s\n", kc_prefix );
char *fnames[MAX_COUNT_PER_LIST] = {0};
int cnt = kcdbmatchprefix (g_kcdb, kc_prefix, fnames, MAX_COUNT_PER_LIST );
int i = 0;
while( i< cnt ){
nxweb_response_printf( resp, "%s\n", fnames[i] );
kcfree( fnames[i] );
fnames[i] = NULL;
i++;
}
return NXWEB_OK;
}
Datum kc_delete(PG_FUNCTION_ARGS) {
char *map_name = text_to_cstring(PG_GETARG_TEXT_PP(0));
char *start_time = text_to_cstring(PG_GETARG_TEXT_PP(1));
ArrayType *rids = PG_GETARG_ARRAYTYPE_P(2);
int i;
Datum *rid_datums;
bool *rid_nulls;
int rid_count;
char *next_rid;
KCDB *main_db;
char *vbuf;
size_t vsiz;
int64_t num_keys_to_run;
int64_t num_keys_deleted;
char **keys_to_use;
Cloudflare__ZoneTimeBucket *msg_new;
// Open our DB.
main_db = kcdbnew();
if (!open_db (main_db, map_name, start_time)) {
PG_RETURN_INT64(0);
}
kcdbbegintran (main_db, 0);
// Now run over the array.
deconstruct_array(rids, TEXTOID, -1, false, 'i',
&rid_datums, &rid_nulls, &rid_count);
if (ARR_HASNULL(rids)) {
ereport(ERROR,
(errcode(ERRCODE_ARRAY_ELEMENT_ERROR),
errmsg("cannot work with arrays containing NULLs")));
}
keys_to_use = (char **)palloc(KC_MAX_ENTRIES_PER_RID * sizeof(char));
num_keys_deleted = 0;
char prefixes_to_use[rid_count][KC_MAX_RID];
for (i = 0; i < rid_count; i++) {
next_rid = TextDatumGetCString(rid_datums[i]);
snprintf(prefixes_to_use[i], KC_MAX_RID, "%s%s", next_rid, CF_LABEL_SEP);
num_keys_to_run = kcdbmatchprefix (main_db, prefixes_to_use[i], keys_to_use, KC_MAX_ENTRIES_PER_RID);
if (num_keys_to_run != -1) {
num_keys_deleted += num_keys_to_run;
int next_key;
for (next_key=0; next_key < num_keys_to_run; next_key++) {
vbuf = kcdbget(main_db, keys_to_use[next_key], strlen(keys_to_use[next_key]), &vsiz);
if (vbuf) {
msg_new = cloudflare__zone_time_bucket__unpack(NULL, vsiz, (const uint8_t *)vbuf);
if (msg_new == NULL) { // Something failed
ereport(ERROR,
(errcode(ERRCODE_EXTERNAL_ROUTINE_EXCEPTION),
errmsg("error unpacking incoming message")));
} else {
if (msg_new->kv_map_file) {
unlink(msg_new->kv_map_file);
}
kcdbremove (main_db, keys_to_use[next_key], strlen(keys_to_use[next_key]));
}
cloudflare__zone_time_bucket__free_unpacked(msg_new, NULL);
kcfree(vbuf);
kcfree(keys_to_use[next_key]);
} else {
ereport(NOTICE,
(errcode(ERRCODE_EXTERNAL_ROUTINE_EXCEPTION),
errmsg("get error on %s -- %s", keys_to_use[next_key], kcecodename(kcdbecode(main_db)))));
}
}
} else {
ereport(NOTICE,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("prefix error on %s -- %s", prefixes_to_use[i], kcecodename(kcdbecode(main_db)))));
}
}
pfree(keys_to_use);
// Done!
kcdbendtran (main_db, 1);
if (!kcdbclose(main_db)) {
ereport(ERROR,
(errcode(ERRCODE_EXTERNAL_ROUTINE_EXCEPTION),
errmsg("Error Closeing db: \"%s\"", kcecodename(kcdbecode(main_db)))));
}
PG_RETURN_INT64(num_keys_deleted);
}