static void show_records_ready(void *data)
{
struct http_channel *c = (struct http_channel *) data;
struct http_session *s = locate_session(c);
if (s) {
yaz_log(c->http_sessions->log_level, "Session %u: show watch released", s->session_id);
show_records(c, s, -1);
}
else {
/* some error message */
}
release_session(c,s);
}
/*
* Searches for a inventory item based on that item's name. The search is
* performed using the item name secondary database. Displays all
* inventory items that use the specified name, as well as the vendor
* associated with that inventory item.
*
* If no item name is provided, then all inventory items are displayed.
*/
int
main(int argc, char *argv[])
{
STOCK_DBS my_stock;
int ch, ret;
char *itemname;
/* Initialize the STOCK_DBS struct */
initialize_stockdbs(&my_stock);
/* Parse the command line arguments */
itemname = NULL;
while ((ch = getopt(argc, argv, "h:i:?")) != EOF)
switch (ch) {
case 'h':
if (optarg[strlen(optarg)-1] != '/' &&
optarg[strlen(optarg)-1] != '\\')
return (usage());
my_stock.db_home_dir = optarg;
break;
case 'i':
itemname = optarg;
break;
case '?':
default:
return (usage());
}
/* Identify the files that hold our databases */
set_db_filenames(&my_stock);
/* Open all databases */
ret = databases_setup(&my_stock, "example_database_read", stderr);
if (ret != 0) {
fprintf(stderr, "Error opening databases\n");
databases_close(&my_stock);
return (ret);
}
if (itemname == NULL)
ret = show_all_records(&my_stock);
else
ret = show_records(&my_stock, itemname);
/* close our databases */
databases_close(&my_stock);
return (ret);
}
static void cmd_show(struct http_channel *c)
{
struct http_request *rq = c->request;
struct http_response *rs = c->response;
struct http_session *s = locate_session(c);
const char *block = http_argbyname(rq, "block");
const char *sort = http_argbyname(rq, "sort");
const char *block_error = http_argbyname(rq, "report");
struct conf_service *service = 0;
struct reclist_sortparms *sp;
int status;
int report_error = 0;
if (block_error && !strcmp("1", block_error)) {
report_error = 1;
}
if (!s)
return;
service = s->psession->service;
if (!sort) {
sort = service->default_sort;
}
if (!(sp = reclist_parse_sortparms(c->nmem, sort, service)))
{
error(c->response, PAZPAR2_MALFORMED_PARAMETER_VALUE, "sort");
release_session(c, s);
return;
}
session_sort(s->psession, sp);
status = session_active_clients(s->psession);
if (block)
{
if (!strcmp(block, "preferred") && !session_is_preferred_clients_ready(s->psession) && reclist_get_num_records(s->psession->reclist) == 0)
{
// if there is already a watch/block. we do not block this one
if (session_set_watch(s->psession, SESSION_WATCH_SHOW_PREF,
show_records_ready, c, c) == 0)
{
yaz_log(c->http_sessions->log_level,
"Session %u: Blocking on command show (preferred targets)", s->session_id);
release_session(c, s);
return;
}
else
{
yaz_log(YLOG_WARN, "Session %u: Attempt to block multiple times on show (preferred targets) block. Not supported!",
s->session_id);
if (report_error) {
error(rs, PAZPAR2_ALREADY_BLOCKED, "show (preferred targets)");
release_session(c, s);
return;
}
else {
yaz_log(YLOG_WARN, "Session %u: Ignoring show(preferred) block. Returning current result.", s->session_id);
}
}
}
else if (status)
{
// if there is already a watch/block. we do not block this one
if (session_set_watch(s->psession, SESSION_WATCH_SHOW,
show_records_ready, c, c) != 0)
{
yaz_log(YLOG_WARN, "Session %u: Attempt to block multiple times on show block. Not supported!", s->session_id);
if (report_error) {
error(rs, PAZPAR2_ALREADY_BLOCKED, "show");
release_session(c, s);
return;
}
else {
yaz_log(YLOG_WARN, "Session %u: Ignoring show block. Returning current result.", s->session_id);
}
}
else
{
yaz_log(c->http_sessions->log_level, "Session %u: Blocking on command show", s->session_id);
release_session(c, s);
return;
}
}
}
show_records(c, s, status);
release_session(c, s);
}
