diff --git a/cib/notify.c b/cib/notify.c index 8a752cbefc..9440ac84f0 100644 --- a/cib/notify.c +++ b/cib/notify.c @@ -1,389 +1,389 @@ /* * Copyright (C) 2004 Andrew Beekhof * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This software is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include int pending_updates = 0; extern GHashTable *client_list; gboolean cib_notify_client(gpointer key, gpointer value, gpointer user_data); void attach_cib_generation(xmlNode *msg, const char *field, xmlNode *a_cib); void do_cib_notify( int options, const char *op, xmlNode *update, enum cib_errors result, xmlNode *result_data, const char *msg_type); static void need_pre_notify(gpointer key, gpointer value, gpointer user_data) { cib_client_t *client = value; if(client->pre_notify) { gboolean *needed = user_data; *needed = TRUE; } } static void need_post_notify(gpointer key, gpointer value, gpointer user_data) { cib_client_t *client = value; if(client->post_notify) { gboolean *needed = user_data; *needed = TRUE; } } gboolean cib_notify_client(gpointer key, gpointer value, gpointer user_data) { int qlen = 0; int max_qlen = 500; const char *type = NULL; gboolean do_send = FALSE; gboolean do_remote = FALSE; IPC_Channel *ipc_client = NULL; cib_client_t *client = value; xmlNode *update_msg = user_data; CRM_CHECK(client != NULL, return TRUE); CRM_CHECK(update_msg != NULL, return TRUE); if(client == NULL) { crm_warn("Skipping NULL client"); return TRUE; } else if(client->channel == NULL) { crm_warn("Skipping client with NULL channel"); return TRUE; } else if(client->name == NULL) { crm_debug_2("Skipping unnammed client / comamnd channel"); return TRUE; } type = crm_element_value(update_msg, F_SUBTYPE); ipc_client = client->channel; do_remote = crm_str_eq(client->channel_name, "remote", FALSE); if (do_remote == FALSE) { qlen = ipc_client->send_queue->current_qlen; max_qlen = ipc_client->send_queue->max_qlen; } CRM_LOG_ASSERT(type != NULL); if(client->diffs && safe_str_eq(type, T_CIB_DIFF_NOTIFY)) { do_send = TRUE; } else if(client->replace && safe_str_eq(type, T_CIB_REPLACE_NOTIFY)) { do_send = TRUE; } else if(client->confirmations && safe_str_eq(type, T_CIB_UPDATE_CONFIRM)) { do_send = TRUE; } else if(client->pre_notify && safe_str_eq(type, T_CIB_PRE_NOTIFY)) { if(qlen < (int)(0.4 * max_qlen)) { do_send = TRUE; } else { crm_warn("Throttling pre-notifications due to" " high load: queue=%d (max=%d)", qlen, max_qlen); } } else if(client->post_notify && safe_str_eq(type, T_CIB_POST_NOTIFY)) { if(qlen < (int)(0.7 * max_qlen)) { do_send = TRUE; } else { crm_warn("Throttling post-notifications due to" " extreme load: queue=%d (max=%d)", qlen, max_qlen); } } if(do_send) { if (do_remote) { crm_debug("Sent %s notification to client %s/%s", type, client->name, client->id); cib_send_remote_msg(client->channel, update_msg, client->encrypted); } else if(ipc_client->send_queue->current_qlen >= ipc_client->send_queue->max_qlen) { /* We never want the CIB to exit because our client is slow */ crm_crit("%s-notification of client %s/%s failed - queue saturated", type, client->name, client->id); } else if(send_ipc_message(ipc_client, update_msg) == FALSE) { crm_warn("Notification of client %s/%s failed", client->name, client->id); - return TRUE; + return FALSE; } } return FALSE; } void cib_pre_notify( int options, const char *op, xmlNode *existing, xmlNode *update) { xmlNode *update_msg = NULL; const char *type = NULL; const char *id = NULL; gboolean needed = FALSE; g_hash_table_foreach(client_list, need_pre_notify, &needed); if(needed == FALSE) { return; } /* TODO: consider pre-notification for removal */ update_msg = create_xml_node(NULL, "pre-notify"); if(update != NULL) { id = crm_element_value(update, XML_ATTR_ID); } crm_xml_add(update_msg, F_TYPE, T_CIB_NOTIFY); crm_xml_add(update_msg, F_SUBTYPE, T_CIB_PRE_NOTIFY); crm_xml_add(update_msg, F_CIB_OPERATION, op); if(id != NULL) { crm_xml_add(update_msg, F_CIB_OBJID, id); } if(update != NULL) { crm_xml_add(update_msg, F_CIB_OBJTYPE, crm_element_name(update)); } else if(existing != NULL) { crm_xml_add(update_msg, F_CIB_OBJTYPE, crm_element_name(existing)); } type = crm_element_value(update_msg, F_CIB_OBJTYPE); attach_cib_generation(update_msg, "cib_generation", the_cib); if(existing != NULL) { add_message_xml(update_msg, F_CIB_EXISTING, existing); } if(update != NULL) { add_message_xml(update_msg, F_CIB_UPDATE, update); } g_hash_table_foreach_remove(client_list, cib_notify_client, update_msg); if(update == NULL) { crm_debug_2("Performing operation %s (on section=%s)", op, type); } else { crm_debug_2("Performing %s on <%s%s%s>", op, type, id?" id=":"", id?id:""); } free_xml(update_msg); } void cib_post_notify(int options, const char *op, xmlNode *update, enum cib_errors result, xmlNode *new_obj) { gboolean needed = FALSE; g_hash_table_foreach(client_list, need_post_notify, &needed); if(needed == FALSE) { return; } do_cib_notify( options, op, update, result, new_obj, T_CIB_UPDATE_CONFIRM); } void cib_diff_notify( int options, const char *client, const char *call_id, const char *op, xmlNode *update, enum cib_errors result, xmlNode *diff) { int add_updates = 0; int add_epoch = 0; int add_admin_epoch = 0; int del_updates = 0; int del_epoch = 0; int del_admin_epoch = 0; int log_level = LOG_DEBUG_2; if(diff == NULL) { return; } if(result != cib_ok) { log_level = LOG_WARNING; } cib_diff_version_details( diff, &add_admin_epoch, &add_epoch, &add_updates, &del_admin_epoch, &del_epoch, &del_updates); if(add_updates != del_updates) { do_crm_log(log_level, "Update (client: %s%s%s): %d.%d.%d -> %d.%d.%d (%s)", client, call_id?", call:":"", call_id?call_id:"", del_admin_epoch, del_epoch, del_updates, add_admin_epoch, add_epoch, add_updates, cib_error2string(result)); } else if(diff != NULL) { do_crm_log(log_level, "Local-only Change (client:%s%s%s): %d.%d.%d (%s)", client, call_id?", call: ":"", call_id?call_id:"", add_admin_epoch, add_epoch, add_updates, cib_error2string(result)); } do_cib_notify(options, op, update, result, diff, T_CIB_DIFF_NOTIFY); } void do_cib_notify( int options, const char *op, xmlNode *update, enum cib_errors result, xmlNode *result_data, const char *msg_type) { xmlNode *update_msg = NULL; const char *id = NULL; update_msg = create_xml_node(NULL, "notify"); if(result_data != NULL) { id = crm_element_value(result_data, XML_ATTR_ID); } crm_xml_add(update_msg, F_TYPE, T_CIB_NOTIFY); crm_xml_add(update_msg, F_SUBTYPE, msg_type); crm_xml_add(update_msg, F_CIB_OPERATION, op); crm_xml_add_int(update_msg, F_CIB_RC, result); if(id != NULL) { crm_xml_add(update_msg, F_CIB_OBJID, id); } if(update != NULL) { crm_debug_4("Setting type to update->name: %s", crm_element_name(update)); crm_xml_add(update_msg, F_CIB_OBJTYPE, crm_element_name(update)); } else if(result_data != NULL) { crm_debug_4("Setting type to new_obj->name: %s", crm_element_name(result_data)); crm_xml_add(update_msg, F_CIB_OBJTYPE, crm_element_name(result_data)); } else { crm_debug_4("Not Setting type"); } attach_cib_generation(update_msg, "cib_generation", the_cib); if(update != NULL) { add_message_xml(update_msg, F_CIB_UPDATE, update); } if(result_data != NULL) { add_message_xml(update_msg, F_CIB_UPDATE_RESULT, result_data); } crm_debug_3("Notifying clients"); g_hash_table_foreach_remove(client_list, cib_notify_client, update_msg); free_xml(update_msg); crm_debug_3("Notify complete"); } void attach_cib_generation(xmlNode *msg, const char *field, xmlNode *a_cib) { xmlNode *generation = create_xml_node( NULL, XML_CIB_TAG_GENERATION_TUPPLE); if(a_cib != NULL) { copy_in_properties(generation, a_cib); } add_message_xml(msg, field, generation); free_xml(generation); } void cib_replace_notify(const char *origin, xmlNode *update, enum cib_errors result, xmlNode *diff) { xmlNode *replace_msg = NULL; int add_updates = 0; int add_epoch = 0; int add_admin_epoch = 0; int del_updates = 0; int del_epoch = 0; int del_admin_epoch = 0; if(diff == NULL) { return; } cib_diff_version_details( diff, &add_admin_epoch, &add_epoch, &add_updates, &del_admin_epoch, &del_epoch, &del_updates); if(add_updates != del_updates) { crm_info("Replaced: %d.%d.%d -> %d.%d.%d from %s", del_admin_epoch, del_epoch, del_updates, add_admin_epoch, add_epoch, add_updates, crm_str(origin)); } else if(diff != NULL) { crm_info("Local-only Replace: %d.%d.%d from %s", add_admin_epoch, add_epoch, add_updates, crm_str(origin)); } replace_msg = create_xml_node(NULL, "notify-replace"); crm_xml_add(replace_msg, F_TYPE, T_CIB_NOTIFY); crm_xml_add(replace_msg, F_SUBTYPE, T_CIB_REPLACE_NOTIFY); crm_xml_add(replace_msg, F_CIB_OPERATION, CIB_OP_REPLACE); crm_xml_add_int(replace_msg, F_CIB_RC, result); attach_cib_generation(replace_msg, "cib-replace-generation", update); crm_log_xml(LOG_DEBUG_2,"CIB Replaced", replace_msg); g_hash_table_foreach_remove(client_list, cib_notify_client, replace_msg); free_xml(replace_msg); }