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); }