void
toolbar_client_show(Client *c)
{
Wm *w = c->wm;
long win_state;
c->mapped = True;
if (w->stack_top_app
&& (w->stack_top_app->flags & CLIENT_FULLSCREEN_FLAG))
main_client_manage_toolbars_for_fullscreen(c, True);
win_state = client_get_state(c);
if (win_state == WithdrawnState) /* initial show() state */
{
client_set_state(c,NormalState);
wm_update_layout(c->wm, c, - c->height);
}
else if (win_state == IconicState) /* minimised, set maximised */
{
client_set_state(c,NormalState);
/* Make sure desktop flag is unset */
c->flags &= ~CLIENT_IS_MINIMIZED;
wm_update_layout(c->wm, c, -(c->height - toolbar_win_offset(c)));
if (c->flags & CLIENT_TITLE_HIDDEN_FLAG)
{
c->x = wm_get_offsets_size(c->wm, WEST, NULL, False);
}
else
{
c->x = theme_frame_defined_width_get(w->mbtheme,
FRAME_UTILITY_MAX )
+ wm_get_offsets_size(c->wm, WEST, NULL, False);
c->y = c->y - ( c->height - toolbar_win_offset(c));
}
/* destroy buttons so they get recreated ok */
client_buttons_delete_all(c);
toolbar_client_move_resize(c);
toolbar_client_redraw(c, False);
}
stack_move_client_above_type(c, MBCLIENT_TYPE_APP|MBCLIENT_TYPE_DESKTOP);
XMapSubwindows(w->dpy, c->frame);
XMapWindow(w->dpy, c->frame);
comp_engine_client_show(w, c);
}
Client*
toolbar_client_new(Wm *w, Window win)
{
Client *c = base_client_new(w, win);
if (!c) return NULL;
/* If theres not room for the toolbar, just make it an app window */
/* In practise one would expect this to never happen */
if ((c->height) > w->dpy_height - (theme_frame_defined_height_get(w->mbtheme, FRAME_MAIN)*2) )
{
dbg("%s() not enough room for toolbar client\n", __func__);
base_client_destroy(c);
return main_client_new(w, win);
}
c->type = MBCLIENT_TYPE_TOOLBAR;
c->configure = &toolbar_client_configure;
c->reparent = &toolbar_client_reparent;
c->button_press = &toolbar_client_button_press;
c->redraw = &toolbar_client_redraw;
c->hide = &toolbar_client_hide;
c->iconize = &toolbar_client_hide;
c->show = &toolbar_client_show;
c->move_resize = &toolbar_client_move_resize;
c->get_coverage = &toolbar_client_get_coverage;
c->destroy = &toolbar_client_destroy;
client_set_state(c,WithdrawnState); /* set initially to signal show() */
return c;
}
static void connection_handler(IOCHAN iochan, int event)
{
struct connection *co = iochan_getdata(iochan);
struct client *cl;
struct host *host = co->host;
yaz_mutex_enter(host->mutex);
cl = co->client;
if (!cl)
{
/* no client associated with it.. We are probably getting
a closed connection from the target.. Or, perhaps, an unexpected
package.. We will just close the connection */
yaz_log(YLOG_LOG, "timeout connection %p event=%d", co, event);
remove_connection_from_host(co);
yaz_mutex_leave(host->mutex);
connection_destroy(co);
}
else if (event & EVENT_TIMEOUT)
{
if (co->state == Conn_Connecting)
{
yaz_log(YLOG_WARN, "%p connect timeout %s", co, client_get_id(cl));
client_set_state(cl, Client_Error);
remove_connection_from_host(co);
yaz_mutex_leave(host->mutex);
connection_destroy(co);
}
else
{
yaz_log(YLOG_LOG, "%p Connection idle timeout %s", co, client_get_id(cl));
remove_connection_from_host(co);
yaz_mutex_leave(host->mutex);
connection_destroy(co);
}
}
else
{
yaz_mutex_leave(host->mutex);
client_lock(cl);
non_block_events(co);
ZOOM_connection_fire_event_socket(co->link, event);
non_block_events(co);
client_unlock(cl);
if (co->link)
{
iochan_setflags(iochan, ZOOM_connection_get_mask(co->link));
iochan_setfd(iochan, ZOOM_connection_get_socket(co->link));
}
}
}
void
handler_unmapnotify(XEvent *ev)
{
struct client *c;
XUnmapEvent *uev = &ev->xunmap;
dbg_print(__func__);
if ((c = find_client_by_window(mons, uev->window))) {
if(uev->send_event)
client_set_state(c, WithdrawnState);
else
remove_client(c, false);
}
}
void
dialog_client_show(Client *c)
{
Wm *w = c->wm;
Client *highest_client = NULL;
MBList *transient_list = NULL, *list_item = NULL;
dbg("%s() called for %s\n", __func__, c->name);
if (!c->mapped)
{
if (c->flags & CLIENT_IS_MINIMIZED)
{
Client *p = NULL;
client_set_state(c, NormalState);
c->flags &= ~CLIENT_IS_MINIMIZED;
/* Make sure any transients are un minimized too */
stack_enumerate(w, p)
if (p->trans == c)
{
p->show(p);
XMapSubwindows(w->dpy, p->frame);
XMapWindow(w->dpy, p->frame);
}
if (c->flags & CLIENT_IS_MODAL_FLAG)
c->wm->n_modals_present++;
}
if (c->win_modal_blocker)
{
XMapWindow(w->dpy, c->win_modal_blocker);
dbg("%s() blocker win mapped for '%s'\n", __func__, c->name);
}
/* Set flag below to delay actual mapping of window
* till *after* we've synced the stack. This hacky
* solution avoids problem of dialogs mapping for
* clients below and causing flicker.
*
* Note could still cause issues with transients and remmapping
* them if minimised..
*/
c->flags |= CLIENT_DELAY_MAPPING;
}
static int get_server_state(AvahiClient *client, int *ret_error) {
DBusMessage *message = NULL, *reply = NULL;
DBusError error;
int32_t state;
int e = AVAHI_ERR_NO_MEMORY;
assert(client);
dbus_error_init(&error);
if (!(message = dbus_message_new_method_call(AVAHI_DBUS_NAME, AVAHI_DBUS_PATH_SERVER, AVAHI_DBUS_INTERFACE_SERVER, "GetState")))
goto fail;
reply = dbus_connection_send_with_reply_and_block (client->bus, message, -1, &error);
if (!reply || dbus_error_is_set (&error))
goto fail;
if (!dbus_message_get_args(reply, &error, DBUS_TYPE_INT32, &state, DBUS_TYPE_INVALID) ||
dbus_error_is_set (&error))
goto fail;
client_set_state(client, (AvahiClientState) state);
dbus_message_unref(message);
dbus_message_unref(reply);
return AVAHI_OK;
fail:
if (dbus_error_is_set(&error)) {
e = avahi_error_dbus_to_number (error.name);
dbus_error_free(&error);
}
if (ret_error)
*ret_error = e;
if (message)
dbus_message_unref(message);
if (reply)
dbus_message_unref(reply);
return e;
}
void client_unmanage(Client *c, bool destroyed) {
Monitor *m = c->mon;
/* The server grab construct avoids race conditions. */
client_detach(c);
client_detach_stack(c);
printf("unmanage %i, %i\n", destroyed, c->win);
if(!destroyed) {
uint32_t values[] = { c->oldbw };
xcb_grab_server(conn);
xcb_configure_window_checked(conn, c->win,
XCB_CONFIG_WINDOW_BORDER_WIDTH, values);
xcb_ungrab_button_checked(conn, XCB_BUTTON_INDEX_ANY, c->win,
XCB_GRAB_ANY);
client_set_state(c, XCB_ICCCM_WM_STATE_WITHDRAWN);
xcb_flush(conn);
xcb_ungrab_server(conn);
}
free(c);
client_focus(NULL);
arrange(m);
}
void
toolbar_client_hide(Client *c)
{
Wm *w = c->wm;
if (c->flags & CLIENT_IS_MINIMIZED || client_get_state(c) == IconicState)
return;
client_set_state(c,IconicState);
c->flags |= CLIENT_IS_MINIMIZED;
c->ignore_unmap++;
XUnmapWindow(w->dpy, c->window);
if (c->flags & CLIENT_TITLE_HIDDEN_FLAG)
{
XUnmapWindow(w->dpy, c->frame);
}
else
{
client_buttons_delete_all(c);
c->x = wm_get_offsets_size(c->wm, WEST, NULL, False);
c->y = c->y + c->height
- theme_frame_defined_height_get(c->wm->mbtheme, FRAME_UTILITY_MIN);
}
toolbar_client_move_resize(c);
toolbar_client_redraw(c, False);
dbg("hiding toolbar y is now %i", c->y);
wm_update_layout(c->wm, c, c->height - toolbar_win_offset(c));
}
AvahiClient *avahi_client_new(const AvahiPoll *poll_api, AvahiClientFlags flags, AvahiClientCallback callback, void *userdata, int *ret_error) {
AvahiClient *client = NULL;
DBusError error;
DBusMessage *message = NULL, *reply = NULL;
avahi_init_i18n();
dbus_error_init(&error);
if (!(client = avahi_new(AvahiClient, 1))) {
if (ret_error)
*ret_error = AVAHI_ERR_NO_MEMORY;
goto fail;
}
client->poll_api = poll_api;
client->error = AVAHI_OK;
client->callback = callback;
client->userdata = userdata;
client->state = (AvahiClientState) -1;
client->flags = flags;
client->host_name = NULL;
client->host_name_fqdn = NULL;
client->domain_name = NULL;
client->version_string = NULL;
client->local_service_cookie_valid = 0;
AVAHI_LLIST_HEAD_INIT(AvahiEntryGroup, client->groups);
AVAHI_LLIST_HEAD_INIT(AvahiDomainBrowser, client->domain_browsers);
AVAHI_LLIST_HEAD_INIT(AvahiServiceBrowser, client->service_browsers);
AVAHI_LLIST_HEAD_INIT(AvahiServiceTypeBrowser, client->service_type_browsers);
AVAHI_LLIST_HEAD_INIT(AvahiServiceResolver, client->service_resolvers);
AVAHI_LLIST_HEAD_INIT(AvahiHostNameResolver, client->host_name_resolvers);
AVAHI_LLIST_HEAD_INIT(AvahiAddressResolver, client->address_resolvers);
AVAHI_LLIST_HEAD_INIT(AvahiRecordBrowser, client->record_browsers);
if (!(client->bus = avahi_dbus_bus_get(&error)) || dbus_error_is_set(&error)) {
if (ret_error)
*ret_error = AVAHI_ERR_DBUS_ERROR;
goto fail;
}
if (avahi_dbus_connection_glue(client->bus, poll_api) < 0) {
if (ret_error)
*ret_error = AVAHI_ERR_NO_MEMORY; /* Not optimal */
goto fail;
}
if (!dbus_connection_add_filter(client->bus, filter_func, client, NULL)) {
if (ret_error)
*ret_error = AVAHI_ERR_NO_MEMORY;
goto fail;
}
dbus_bus_add_match(
client->bus,
"type='signal', "
"interface='" AVAHI_DBUS_INTERFACE_SERVER "', "
"sender='" AVAHI_DBUS_NAME "', "
"path='" AVAHI_DBUS_PATH_SERVER "'",
&error);
if (dbus_error_is_set(&error))
goto fail;
dbus_bus_add_match (
client->bus,
"type='signal', "
"interface='" DBUS_INTERFACE_DBUS "', "
"sender='" DBUS_SERVICE_DBUS "', "
"path='" DBUS_PATH_DBUS "'",
&error);
if (dbus_error_is_set(&error))
goto fail;
dbus_bus_add_match(
client->bus,
"type='signal', "
"interface='" DBUS_INTERFACE_LOCAL "'",
&error);
if (dbus_error_is_set(&error))
goto fail;
if (!(message = dbus_message_new_method_call(AVAHI_DBUS_NAME, AVAHI_DBUS_PATH_SERVER, "org.freedesktop.DBus.Peer", "Ping")))
goto fail;
reply = dbus_connection_send_with_reply_and_block (client->bus, message, -1, &error);
if (!reply || dbus_error_is_set (&error)) {
/* We free the error so its not set, that way the fail target
* will return the NO_DAEMON error rather than a DBUS error */
dbus_error_free(&error);
if (!(flags & AVAHI_CLIENT_NO_FAIL)) {
if (ret_error)
*ret_error = AVAHI_ERR_NO_DAEMON;
goto fail;
}
/* The user doesn't want this call to fail if the daemon is not
* available, so let's return succesfully */
client_set_state(client, AVAHI_CLIENT_CONNECTING);
} else {
if (init_server(client, ret_error) < 0)
goto fail;
}
dbus_message_unref(message);
if (reply)
dbus_message_unref(reply);
return client;
fail:
if (message)
dbus_message_unref(message);
if (reply)
dbus_message_unref(reply);
if (client)
avahi_client_free(client);
if (dbus_error_is_set(&error)) {
if (ret_error) {
if (strcmp(error.name, DBUS_ERROR_FILE_NOT_FOUND) == 0)
/* DBUS returns this error when the DBUS daemon is not running */
*ret_error = AVAHI_ERR_NO_DAEMON;
else
*ret_error = avahi_error_dbus_to_number(error.name);
}
dbus_error_free(&error);
}
return NULL;
}
static DBusHandlerResult filter_func(DBusConnection *bus, DBusMessage *message, void *userdata) {
AvahiClient *client = (AvahiClient *)userdata;
DBusError error;
assert(bus);
assert(message);
dbus_error_init(&error);
/* fprintf(stderr, "dbus: interface=%s, path=%s, member=%s\n", */
/* dbus_message_get_interface (message), */
/* dbus_message_get_path (message), */
/* dbus_message_get_member (message)); */
if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
/* The DBUS server died or kicked us */
avahi_client_set_errno(client, AVAHI_ERR_DISCONNECTED);
goto fail;
} else if (dbus_message_is_signal(message, DBUS_INTERFACE_DBUS, "NameAcquired")) {
/* Ignore this message */
} else if (dbus_message_is_signal(message, DBUS_INTERFACE_DBUS, "NameOwnerChanged")) {
char *name, *old, *newname;
if (!dbus_message_get_args(
message, &error,
DBUS_TYPE_STRING, &name,
DBUS_TYPE_STRING, &old,
DBUS_TYPE_STRING, &newname,
DBUS_TYPE_INVALID) || dbus_error_is_set(&error)) {
fprintf(stderr, "WARNING: Failed to parse NameOwnerChanged signal: %s\n", error.message);
avahi_client_set_errno(client, AVAHI_ERR_DBUS_ERROR);
goto fail;
}
if (strcmp(name, AVAHI_DBUS_NAME) == 0) {
if (old[0] &&
avahi_client_is_connected(client)) {
/* Regardless if the server lost its name or
* if the name was transfered: our services are no longer
* available, so we disconnect ourselves */
avahi_client_set_errno(client, AVAHI_ERR_DISCONNECTED);
goto fail;
} else if (client->state == AVAHI_CLIENT_CONNECTING && (!old || *old == 0)) {
int ret;
/* Server appeared */
if ((ret = init_server(client, NULL)) < 0) {
avahi_client_set_errno(client, ret);
goto fail;
}
}
}
} else if (!avahi_client_is_connected(client)) {
/* Ignore messages we get in unconnected state */
} else if (dbus_message_is_signal (message, AVAHI_DBUS_INTERFACE_SERVER, "StateChanged")) {
int32_t state;
char *e = NULL;
int c;
if (!dbus_message_get_args(
message, &error,
DBUS_TYPE_INT32, &state,
DBUS_TYPE_STRING, &e,
DBUS_TYPE_INVALID) || dbus_error_is_set (&error)) {
fprintf(stderr, "WARNING: Failed to parse Server.StateChanged signal: %s\n", error.message);
avahi_client_set_errno(client, AVAHI_ERR_DBUS_ERROR);
goto fail;
}
if ((c = avahi_error_dbus_to_number(e)) != AVAHI_OK)
avahi_client_set_errno(client, c);
client_set_state(client, (AvahiClientState) state);
} else if (dbus_message_is_signal (message, AVAHI_DBUS_INTERFACE_ENTRY_GROUP, "StateChanged")) {
const char *path;
AvahiEntryGroup *g;
path = dbus_message_get_path(message);
for (g = client->groups; g; g = g->groups_next){
if (strcmp(g->path, path) == 0)
break;
}
if (g) {
int32_t state;
char *e;
int c;
if (!dbus_message_get_args(
message, &error,
DBUS_TYPE_INT32, &state,
DBUS_TYPE_STRING, &e,
DBUS_TYPE_INVALID) ||
dbus_error_is_set(&error)) {
fprintf(stderr, "WARNING: Failed to parse EntryGroup.StateChanged signal: %s\n", error.message);
avahi_client_set_errno(client, AVAHI_ERR_DBUS_ERROR);
goto fail;
}
if ((c = avahi_error_dbus_to_number(e)) != AVAHI_OK)
avahi_client_set_errno(client, c);
avahi_entry_group_set_state(g, (AvahiEntryGroupState)state);
}
return avahi_domain_browser_event(client, AVAHI_BROWSER_NEW, message);
}
else if (dbus_message_is_signal (message, AVAHI_DBUS_INTERFACE_DOMAIN_BROWSER, "ItemRemove"))
return avahi_domain_browser_event(client, AVAHI_BROWSER_REMOVE, message);
else if (dbus_message_is_signal (message, AVAHI_DBUS_INTERFACE_DOMAIN_BROWSER, "CacheExhausted"))
return avahi_domain_browser_event(client, AVAHI_BROWSER_CACHE_EXHAUSTED, message);
else if (dbus_message_is_signal (message, AVAHI_DBUS_INTERFACE_DOMAIN_BROWSER, "AllForNow"))
return avahi_domain_browser_event(client, AVAHI_BROWSER_ALL_FOR_NOW, message);
else if (dbus_message_is_signal (message, AVAHI_DBUS_INTERFACE_DOMAIN_BROWSER, "Failure"))
return avahi_domain_browser_event(client, AVAHI_BROWSER_FAILURE, message);
else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_TYPE_BROWSER, "ItemNew"))
return avahi_service_type_browser_event (client, AVAHI_BROWSER_NEW, message);
else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_TYPE_BROWSER, "ItemRemove"))
return avahi_service_type_browser_event (client, AVAHI_BROWSER_REMOVE, message);
else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_TYPE_BROWSER, "CacheExhausted"))
return avahi_service_type_browser_event (client, AVAHI_BROWSER_CACHE_EXHAUSTED, message);
else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_TYPE_BROWSER, "AllForNow"))
return avahi_service_type_browser_event (client, AVAHI_BROWSER_ALL_FOR_NOW, message);
else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_TYPE_BROWSER, "Failure"))
return avahi_service_type_browser_event (client, AVAHI_BROWSER_FAILURE, message);
else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_BROWSER, "ItemNew"))
return avahi_service_browser_event (client, AVAHI_BROWSER_NEW, message);
else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_BROWSER, "ItemRemove"))
return avahi_service_browser_event (client, AVAHI_BROWSER_REMOVE, message);
else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_BROWSER, "CacheExhausted"))
return avahi_service_browser_event (client, AVAHI_BROWSER_CACHE_EXHAUSTED, message);
else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_BROWSER, "AllForNow"))
return avahi_service_browser_event (client, AVAHI_BROWSER_ALL_FOR_NOW, message);
else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_BROWSER, "Failure"))
return avahi_service_browser_event (client, AVAHI_BROWSER_FAILURE, message);
else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_RESOLVER, "Found"))
return avahi_service_resolver_event (client, AVAHI_RESOLVER_FOUND, message);
else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_RESOLVER, "Failure"))
return avahi_service_resolver_event (client, AVAHI_RESOLVER_FAILURE, message);
else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_HOST_NAME_RESOLVER, "Found"))
return avahi_host_name_resolver_event (client, AVAHI_RESOLVER_FOUND, message);
else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_HOST_NAME_RESOLVER, "Failure"))
return avahi_host_name_resolver_event (client, AVAHI_RESOLVER_FAILURE, message);
else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_ADDRESS_RESOLVER, "Found"))
return avahi_address_resolver_event (client, AVAHI_RESOLVER_FOUND, message);
else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_ADDRESS_RESOLVER, "Failure"))
return avahi_address_resolver_event (client, AVAHI_RESOLVER_FAILURE, message);
else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_RECORD_BROWSER, "ItemNew"))
return avahi_record_browser_event (client, AVAHI_BROWSER_NEW, message);
else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_RECORD_BROWSER, "ItemRemove"))
return avahi_record_browser_event (client, AVAHI_BROWSER_REMOVE, message);
else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_RECORD_BROWSER, "CacheExhausted"))
return avahi_record_browser_event (client, AVAHI_BROWSER_CACHE_EXHAUSTED, message);
else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_RECORD_BROWSER, "AllForNow"))
return avahi_record_browser_event (client, AVAHI_BROWSER_ALL_FOR_NOW, message);
else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_RECORD_BROWSER, "Failure"))
return avahi_record_browser_event (client, AVAHI_BROWSER_FAILURE, message);
else {
fprintf(stderr, "WARNING: Unhandled message: interface=%s, path=%s, member=%s\n",
dbus_message_get_interface(message),
dbus_message_get_path(message),
dbus_message_get_member(message));
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
}
return DBUS_HANDLER_RESULT_HANDLED;
fail:
if (dbus_error_is_set(&error)) {
avahi_client_set_errno(client, avahi_error_dbus_to_number(error.name));
dbus_error_free(&error);
}
client_set_state(client, AVAHI_CLIENT_FAILURE);
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
}
// Ensure that client has a connection associated
int client_prep_connection(struct client *cl,
int operation_timeout, int session_timeout,
iochan_man_t iochan_man,
const struct timeval *abstime)
{
struct connection *co;
struct session_database *sdb = client_get_database(cl);
const char *zproxy = session_setting_oneval(sdb, PZ_ZPROXY);
const char *url = session_setting_oneval(sdb, PZ_URL);
const char *sru = session_setting_oneval(sdb, PZ_SRU);
struct host *host = 0;
int default_port = *sru ? 80 : 210;
if (zproxy && zproxy[0] == '\0')
zproxy = 0;
if (!url || !*url)
url = sdb->database->id;
host = find_host(client_get_session(cl)->service->server->database_hosts,
url, zproxy, default_port, iochan_man);
yaz_log(YLOG_DEBUG, "client_prep_connection: target=%s url=%s",
client_get_id(cl), url);
if (!host)
return 0;
co = client_get_connection(cl);
if (co)
{
assert(co->host);
if (co->host == host && client_get_state(cl) == Client_Idle)
{
return 2;
}
client_incref(cl);
connection_release(co);
co = 0;
}
if (!co)
{
int max_connections = 0;
int reuse_connections = 1;
const char *v = session_setting_oneval(client_get_database(cl),
PZ_MAX_CONNECTIONS);
if (v && *v)
max_connections = atoi(v);
v = session_setting_oneval(client_get_database(cl),
PZ_REUSE_CONNECTIONS);
if (v && *v)
reuse_connections = atoi(v);
// See if someone else has an idle connection
// We should look at timestamps here to select the longest-idle connection
yaz_mutex_enter(host->mutex);
while (1)
{
int num_connections = 0;
for (co = host->connections; co; co = co->next)
num_connections++;
if (reuse_connections)
{
for (co = host->connections; co; co = co->next)
{
if (connection_is_idle(co) &&
(!co->client || client_get_state(co->client) == Client_Idle) &&
!strcmp(ZOOM_connection_option_get(co->link, "user"),
session_setting_oneval(client_get_database(cl),
PZ_AUTHENTICATION)))
{
if (zproxy == 0 && co->zproxy == 0)
break;
if (zproxy && co->zproxy && !strcmp(zproxy, co->zproxy))
break;
}
}
if (co)
{
yaz_log(YLOG_LOG, "num_connections = %d (reusing)", num_connections);
break;
}
}
if (max_connections <= 0 || num_connections < max_connections)
{
yaz_log(YLOG_LOG, "num_connections = %d (new); max = %d",
num_connections, max_connections);
break;
}
yaz_log(YLOG_LOG, "num_connections = %d (waiting) max = %d",
num_connections, max_connections);
if (yaz_cond_wait(host->cond_ready, host->mutex, abstime))
{
yaz_log(YLOG_LOG, "out of connections %s", client_get_id(cl));
client_set_state(cl, Client_Error);
yaz_mutex_leave(host->mutex);
return 0;
}
}
if (co)
{
yaz_log(YLOG_LOG, "%p Connection reuse. state: %d", co, co->state);
connection_release(co);
client_set_connection(cl, co);
co->client = cl;
/* ensure that connection is only assigned to this client
by marking the client non Idle */
client_set_state(cl, Client_Working);
yaz_mutex_leave(host->mutex);
co->operation_timeout = operation_timeout;
co->session_timeout = session_timeout;
/* tells ZOOM to reconnect if necessary. Disabled becuase
the ZOOM_connection_connect flushes the task queue */
ZOOM_connection_connect(co->link, 0, 0);
}
else
{
yaz_mutex_leave(host->mutex);
co = connection_create(cl, host, operation_timeout, session_timeout,
iochan_man);
}
assert(co->host);
}
if (co && co->link)
return 1;
else
return 0;
}
static int connection_connect(struct connection *con, iochan_man_t iochan_man)
{
struct host *host = connection_get_host(con);
ZOOM_options zoptions = ZOOM_options_create();
const char *auth;
const char *charset;
const char *sru;
const char *sru_version = 0;
struct session_database *sdb = client_get_database(con->client);
const char *apdulog = session_setting_oneval(sdb, PZ_APDULOG);
assert(con);
ZOOM_options_set(zoptions, "async", "1");
ZOOM_options_set(zoptions, "implementationName", PACKAGE_NAME);
ZOOM_options_set(zoptions, "implementationVersion", VERSION);
if ((charset = session_setting_oneval(sdb, PZ_NEGOTIATION_CHARSET)))
ZOOM_options_set(zoptions, "charset", charset);
assert(host->ipport);
if (host->proxy)
{
yaz_log(YLOG_LOG, "proxy=%s", host->ipport);
ZOOM_options_set(zoptions, "proxy", host->ipport);
}
else
{
assert(host->tproxy);
yaz_log(YLOG_LOG, "tproxy=%s", host->ipport);
ZOOM_options_set(zoptions, "tproxy", host->ipport);
}
if (apdulog && *apdulog)
ZOOM_options_set(zoptions, "apdulog", apdulog);
if ((auth = session_setting_oneval(sdb, PZ_AUTHENTICATION)))
ZOOM_options_set(zoptions, "user", auth);
if ((sru = session_setting_oneval(sdb, PZ_SRU)) && *sru)
ZOOM_options_set(zoptions, "sru", sru);
if ((sru_version = session_setting_oneval(sdb, PZ_SRU_VERSION))
&& *sru_version)
ZOOM_options_set(zoptions, "sru_version", sru_version);
if (!(con->link = ZOOM_connection_create(zoptions)))
{
yaz_log(YLOG_FATAL|YLOG_ERRNO, "Failed to create ZOOM Connection");
ZOOM_options_destroy(zoptions);
return -1;
}
if (sru && *sru)
{
char http_hostport[512];
strcpy(http_hostport, "http://");
strcat(http_hostport, host->url);
yaz_log(YLOG_LOG, "SRU connect to : %s", http_hostport);
ZOOM_connection_connect(con->link, http_hostport, 0);
}
else
{
ZOOM_connection_connect(con->link, host->url, 0);
}
con->iochan = iochan_create(-1, connection_handler, 0, "connection_socket");
con->state = Conn_Connecting;
iochan_settimeout(con->iochan, con->operation_timeout);
iochan_setdata(con->iochan, con);
iochan_add(iochan_man, con->iochan);
client_set_state(con->client, Client_Connecting);
ZOOM_options_destroy(zoptions);
return 0;
}
static void non_block_events(struct connection *co)
{
int got_records = 0;
IOCHAN iochan = co->iochan;
ZOOM_connection link = co->link;
while (1)
{
struct client *cl = co->client;
int ev;
int r = ZOOM_event_nonblock(1, &link);
if (!r)
break;
if (!cl)
continue;
ev = ZOOM_connection_last_event(link);
#if 1
yaz_log(YLOG_DEBUG, "%p Connection ZOOM_EVENT_%s", co, ZOOM_get_event_str(ev));
#endif
switch (ev)
{
case ZOOM_EVENT_END:
{
const char *error, *addinfo;
int err;
if ((err = ZOOM_connection_error(link, &error, &addinfo)))
{
yaz_log(YLOG_LOG, "Error %s from %s",
error, client_get_id(cl));
client_set_diagnostic(cl, err, addinfo);
client_set_state(cl, Client_Error);
}
else
{
iochan_settimeout(iochan, co->session_timeout);
client_set_state(cl, Client_Idle);
}
yaz_cond_broadcast(co->host->cond_ready);
}
break;
case ZOOM_EVENT_SEND_DATA:
break;
case ZOOM_EVENT_RECV_DATA:
break;
case ZOOM_EVENT_UNKNOWN:
break;
case ZOOM_EVENT_SEND_APDU:
client_set_state(co->client, Client_Working);
iochan_settimeout(iochan, co->operation_timeout);
break;
case ZOOM_EVENT_RECV_APDU:
break;
case ZOOM_EVENT_CONNECT:
yaz_log(YLOG_LOG, "Connected to %s", client_get_id(cl));
co->state = Conn_Open;
break;
case ZOOM_EVENT_RECV_SEARCH:
client_search_response(cl);
break;
case ZOOM_EVENT_RECV_RECORD:
client_record_response(cl);
got_records = 1;
break;
default:
yaz_log(YLOG_LOG, "Unhandled event (%d) from %s",
ev, client_get_id(cl));
break;
}
}
if (got_records)
{
struct client *cl = co->client;
if (cl)
{
client_check_preferred_watch(cl);
client_got_records(cl);
}
}
}
