// Berkeley Open Infrastructure for Network Computing // http://boinc.berkeley.edu // Copyright (C) 2005 University of California // // This is free software; you can redistribute it and/or // modify it under the terms of the GNU Lesser 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 Lesser General Public License for more details. // // To view the GNU Lesser General Public License visit // http://www.gnu.org/copyleft/lesser.html // or write to the Free Software Foundation, Inc., // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA #ifdef _WIN32 #include "boinc_win.h" #endif #ifndef _WIN32 #include "config.h" #include #include #include #include #endif #include "str_util.h" #include "util.h" #include "parse.h" #include "error_numbers.h" #include "filesys.h" #include "client_state.h" #include "client_types.h" #include "client_msgs.h" #include "file_names.h" #include "log_flags.h" #include "main.h" #include "scheduler_op.h" //#define ENABLE_AUTO_UPDATE using std::vector; SCHEDULER_OP::SCHEDULER_OP(HTTP_OP_SET* h) { cur_proj = NULL; state = SCHEDULER_OP_STATE_IDLE; http_op.http_op_state = HTTP_STATE_IDLE; http_ops = h; } // See if there's a pending master file fetch. // If so, start it and return true. // bool SCHEDULER_OP::check_master_fetch_start() { int retval; PROJECT* p = gstate.next_project_master_pending(); if (!p) return false; retval = init_master_fetch(p); if (retval) { msg_printf(p, MSG_INTERNAL_ERROR, "Couldn't start download of scheduler list: %s", boincerror(retval) ); p->master_fetch_failures++; backoff(p, "scheduler list fetch failed\n"); return false; } msg_printf(p, MSG_INFO, "Fetching scheduler list"); return true; } // Try to get work from eligible project with biggest long term debt // PRECONDITION: compute_work_requests() has been called // to fill in PROJECT::work_request // and CLIENT_STATE::overall_work_fetch_urgency // int SCHEDULER_OP::init_get_work() { int retval; PROJECT* p = gstate.next_project_need_work(); if (p) { retval = init_op_project(p, RPC_REASON_NEED_WORK); if (retval) { return retval; } } return 0; } // try to initiate an RPC to the given project. // If there are multiple schedulers, start with a random one. // User messages and backoff() is done at this level. // int SCHEDULER_OP::init_op_project(PROJECT* p, int r) { int retval; char err_msg[256]; reason = r; if (log_flags.sched_op_debug) { msg_printf(p, MSG_INFO, "[sched_op_debug] Starting scheduler request" ); } // if project has no schedulers, // skip everything else and just get its master file. // if (p->scheduler_urls.size() == 0) { retval = init_master_fetch(p); if (retval) { sprintf(err_msg, "Scheduler list fetch initialization failed: %d\n", retval ); backoff(p, err_msg); } return retval; } if (reason == RPC_REASON_INIT) { p->work_request = 1; if (!gstate.cpu_benchmarks_done()) { gstate.cpu_benchmarks_set_defaults(); } } url_index = 0; retval = gstate.make_scheduler_request(p); if (!retval) { retval = start_rpc(p); } if (retval) { sprintf(err_msg, "scheduler request to %s failed: %s\n", p->get_scheduler_url(url_index, url_random), boincerror(retval) ); backoff(p, err_msg); } else { // RPC started OK, so we must have network connectivity. // Now's a good time to check for new BOINC versions // and project list // gstate.new_version_check(); gstate.all_projects_list_check(); } return retval; } // One of the following errors occurred: // - connection failure in fetching master file // - connection failure in scheduler RPC // - got master file, but it didn't have any elements // - tried all schedulers, none responded // - sent nonzero work request, got a reply with no work // // Back off contacting this project's schedulers, // and output an error msg if needed // void SCHEDULER_OP::backoff(PROJECT* p, const char *reason_msg) { char buf[1024]; if (p->master_fetch_failures >= gstate.master_fetch_retry_cap) { sprintf(buf, "%d consecutive failures fetching scheduler list", p->master_fetch_failures ); p->master_url_fetch_pending = true; p->set_min_rpc_time(gstate.now + gstate.master_fetch_interval, buf); return; } // if nrpc failures is master_fetch_period, // then set master_url_fetch_pending and initialize again // if (p->nrpc_failures == gstate.master_fetch_period) { p->master_url_fetch_pending = true; p->min_rpc_time = 0; p->nrpc_failures = 0; p->master_fetch_failures++; } // if network is down, don't count it as RPC failure // if (!net_status.need_physical_connection) { p->nrpc_failures++; } //msg_printf(p, MSG_INFO, "nrpc_failures %d need_conn %d", p->nrpc_failures, gstate.need_physical_connection); int n = p->nrpc_failures; if (n > gstate.retry_cap) n = gstate.retry_cap; double exp_backoff = calculate_exponential_backoff( n, gstate.sched_retry_delay_min, gstate.sched_retry_delay_max ); //msg_printf(p, MSG_INFO, "simulating backoff of %f", exp_backoff); p->set_min_rpc_time(gstate.now + exp_backoff, reason_msg); } // low-level routine to initiate an RPC // If successful, creates an HTTP_OP that must be polled // PRECONDITION: the request file has been created // int SCHEDULER_OP::start_rpc(PROJECT* p) { int retval; char request_file[1024], reply_file[1024]; // if requesting work, round up to 1 sec // if (p->work_request>0 && p->work_request<1) { p->work_request = 1; } safe_strcpy(scheduler_url, p->get_scheduler_url(url_index, url_random)); if (log_flags.sched_ops) { msg_printf(p, MSG_INFO, "Sending scheduler request: %s. Requesting %.0f seconds of work, reporting %d completed tasks", rpc_reason_string(reason), p->work_request, p->nresults_returned ); } get_sched_request_filename(*p, request_file, sizeof(request_file)); get_sched_reply_filename(*p, reply_file, sizeof(reply_file)); http_op.set_proxy(&gstate.proxy_info); retval = http_op.init_post(scheduler_url, request_file, reply_file); if (retval) { if (log_flags.sched_ops) { msg_printf(p, MSG_INFO, "Scheduler request failed: %s", boincerror(retval) ); } backoff(cur_proj, "scheduler request failed"); return retval; } retval = http_ops->insert(&http_op); if (retval) { if (log_flags.sched_ops) { msg_printf(p, MSG_INFO, "Scheduler request failed: %s", boincerror(retval) ); } backoff(cur_proj, "scheduler request failed"); return retval; } p->rpc_seqno++; cur_proj = p; // remember what project we're talking to state = SCHEDULER_OP_STATE_RPC; return 0; } // initiate a fetch of a project's master URL file // int SCHEDULER_OP::init_master_fetch(PROJECT* p) { int retval; char master_filename[256]; get_master_filename(*p, master_filename, sizeof(master_filename)); if (log_flags.sched_op_debug) { msg_printf(p, MSG_INFO, "[sched_op_debug] Fetching master file"); } http_op.set_proxy(&gstate.proxy_info); retval = http_op.init_get(p->master_url, master_filename, true); if (retval) return retval; retval = http_ops->insert(&http_op); if (retval) return retval; cur_proj = p; state = SCHEDULER_OP_STATE_GET_MASTER; return 0; } // parse a master file. // int SCHEDULER_OP::parse_master_file(PROJECT* p, vector &urls) { char buf[256], buf2[256]; char master_filename[256]; std::string str; FILE* f; int n; get_master_filename(*p, master_filename, sizeof(master_filename)); f = boinc_fopen(master_filename, "r"); if (!f) { msg_printf(p, MSG_INTERNAL_ERROR, "Can't open scheduler list file"); return ERR_FOPEN; } p->scheduler_urls.clear(); while (fgets(buf, 256, f)) { // allow for the possibility of > 1 tag per line here // (UMTS may collapse lines) // char* q = buf; while (q && parse_str(q, "", str)) { push_unique(str, urls); q = strstr(q, ""); if (q) q += strlen(""); } // check for new syntax: // q = buf; while (q) { n = sscanf(q, "'); if (q) q = strchr(q, '<'); } } fclose(f); if (log_flags.sched_op_debug) { msg_printf(p, MSG_INFO, "[sched_op_debug] Found %d scheduler URLs in master file\n", (int)urls.size() ); } // couldn't find any scheduler URLs in the master file? // if ((int) urls.size() == 0) { return ERR_XML_PARSE; } return 0; } // A master file has just been read. // transfer scheduler URLs to project. // Return true if any of them is new // bool SCHEDULER_OP::update_urls(PROJECT* p, vector &urls) { unsigned int i, j; bool found, any_new; any_new = false; for (i=0; ischeduler_urls.size(); j++) { if (urls[i] == p->scheduler_urls[j]) { found = true; break; } } if (!found) any_new = true; } p->scheduler_urls.clear(); for (i=0; ischeduler_urls.push_back(urls[i]); } return any_new; } // poll routine. If an operation is in progress, check for completion // bool SCHEDULER_OP::poll() { int retval, nresults; vector urls; bool changed, scheduler_op_done; switch(state) { case SCHEDULER_OP_STATE_GET_MASTER: // here we're fetching the master file for a project // if (http_op.http_op_state == HTTP_STATE_DONE) { state = SCHEDULER_OP_STATE_IDLE; cur_proj->master_url_fetch_pending = false; http_ops->remove(&http_op); gstate.set_client_state_dirty("master URL fetch done"); if (http_op.http_op_retval == 0) { if (log_flags.sched_op_debug) { msg_printf(cur_proj, MSG_INFO, "[sched_op_debug] Got master file; parsing" ); } retval = parse_master_file(cur_proj, urls); if (retval || (urls.size()==0)) { // master file parse failed. // cur_proj->master_fetch_failures++; backoff(cur_proj, "Couldn't parse scheduler list"); } else { // parse succeeded // msg_printf(cur_proj, MSG_INFO, "Master file download succeeded"); cur_proj->master_fetch_failures = 0; changed = update_urls(cur_proj, urls); // reenable scheduler RPCs if have new URLs // if (changed) { cur_proj->min_rpc_time = 0; cur_proj->nrpc_failures = 0; } } } else { // master file fetch failed. // char buf[256]; sprintf(buf, "Scheduler list fetch failed: %s", boincerror(http_op.http_op_retval) ); cur_proj->master_fetch_failures++; backoff(cur_proj, buf); } gstate.request_work_fetch("Master fetch complete"); cur_proj = NULL; return true; } break; case SCHEDULER_OP_STATE_RPC: // here we're doing a scheduler RPC // scheduler_op_done = false; if (http_op.http_op_state == HTTP_STATE_DONE) { state = SCHEDULER_OP_STATE_IDLE; http_ops->remove(&http_op); if (http_op.http_op_retval) { if (log_flags.sched_ops) { msg_printf(cur_proj, MSG_INFO, "Scheduler request failed: %s", http_op.error_msg ); } // scheduler RPC failed. Try another scheduler if one exists // while (1) { url_index++; if (url_index == (int)cur_proj->scheduler_urls.size()) { break; } retval = start_rpc(cur_proj); if (!retval) return true; } if (url_index == (int) cur_proj->scheduler_urls.size()) { backoff(cur_proj, "scheduler request failed"); scheduler_op_done = true; // if project suspended, don't retry failed RPC // if (cur_proj->suspended_via_gui) { cur_proj->sched_rpc_pending = 0; } } } else { retval = gstate.handle_scheduler_reply(cur_proj, scheduler_url, nresults); switch (retval) { case 0: break; case ERR_PROJECT_DOWN: backoff(cur_proj, "project is down"); break; default: backoff(cur_proj, "can't parse scheduler reply"); break; } cur_proj->work_request = 0; // don't ask again right away } cur_proj = NULL; gstate.request_work_fetch("RPC complete"); return true; } } return false; } void SCHEDULER_OP::abort(PROJECT* p) { if (state != SCHEDULER_OP_STATE_IDLE && cur_proj == p) { gstate.http_ops->remove(&http_op); state = SCHEDULER_OP_STATE_IDLE; cur_proj = NULL; } } SCHEDULER_REPLY::SCHEDULER_REPLY() { global_prefs_xml = 0; project_prefs_xml = 0; code_sign_key = 0; code_sign_key_signature = 0; } SCHEDULER_REPLY::~SCHEDULER_REPLY() { if (global_prefs_xml) free(global_prefs_xml); if (project_prefs_xml) free(project_prefs_xml); if (code_sign_key) free(code_sign_key); if (code_sign_key_signature) free(code_sign_key_signature); } // parse a scheduler reply. // Some of the items go into the SCHEDULER_REPLY object. // Others are copied straight to the PROJECT // int SCHEDULER_REPLY::parse(FILE* in, PROJECT* project) { char buf[256], msg_buf[1024], pri_buf[256]; int retval; MIOFILE mf; std::string delete_file_name; mf.init_file(in); bool found_start_tag = false; double cpid_time = 0; hostid = 0; request_delay = 0; next_rpc_delay = 0; global_prefs_xml = 0; project_prefs_xml = 0; strcpy(host_venue, ""); strcpy(master_url, ""); code_sign_key = 0; code_sign_key_signature = 0; message_ack = false; project_is_down = false; send_file_list = false; send_time_stats_log = 0; send_job_log = 0; messages.clear(); scheduler_version = 0; // First line should either be tag (HTTP 1.0) or // hex length of response (HTTP 1.1) // while (fgets(buf, 256, in)) { if (!found_start_tag) { if (match_tag(buf, "")) { // update statistics after parsing the scheduler reply // add new record if vector is empty or we have a new day // if (project->statistics.empty() || project->statistics.back().day!=dday()) { // delete old stats while (!project->statistics.empty()) { DAILY_STATS& ds = project->statistics[0]; if (dday() - ds.day > config.save_stats_days*86400) { project->statistics.erase(project->statistics.begin()); } else { break; } } DAILY_STATS nds; project->statistics.push_back(nds); } DAILY_STATS& ds = project->statistics.back(); ds.day=dday(); ds.user_total_credit=project->user_total_credit; ds.user_expavg_credit=project->user_expavg_credit; ds.host_total_credit=project->host_total_credit; ds.host_expavg_credit=project->host_expavg_credit; project->write_statistics_file(); if (cpid_time) { project->cpid_time = cpid_time; } else { project->cpid_time = project->user_create_time; } return 0; } else if (parse_str(buf, "", project->project_name, sizeof(project->project_name))) { continue; } else if (parse_str(buf, "", master_url, sizeof(master_url))) { continue; } else if (parse_str(buf, "", project->symstore, sizeof(project->symstore))) continue; else if (parse_str(buf, "", project->user_name, sizeof(project->user_name))) continue; else if (parse_double(buf, "", project->user_total_credit)) continue; else if (parse_double(buf, "", project->user_expavg_credit)) continue; else if (parse_double(buf, "", project->user_create_time)) continue; else if (parse_double(buf, "", cpid_time)) continue; else if (parse_str(buf, "", project->team_name, sizeof(project->team_name))) continue; else if (parse_int(buf, "", hostid)) continue; else if (parse_double(buf, "", project->host_total_credit)) continue; else if (parse_double(buf, "", project->host_expavg_credit)) continue; else if (parse_str(buf, "", host_venue, sizeof(host_venue))) continue; else if (parse_double(buf, "", project->host_create_time)) continue; else if (parse_double(buf, "", request_delay)) continue; else if (parse_double(buf, "", next_rpc_delay)) continue; else if (match_tag(buf, "")) { retval = dup_element_contents( in, "", &global_prefs_xml ); if (retval) { msg_printf(project, MSG_INTERNAL_ERROR, "Can't parse global prefs in scheduler reply: %s", boincerror(retval) ); return retval; } } else if (match_tag(buf, "")) { retval = dup_element_contents( in, "", &project_prefs_xml ); if (retval) { msg_printf(project, MSG_INTERNAL_ERROR, "Can't parse project prefs in scheduler reply: %s", boincerror(retval) ); return retval; } } else if (match_tag(buf, "")) { std::string foo; retval = copy_element_contents(in, "", foo); if (retval) { msg_printf(project, MSG_INTERNAL_ERROR, "Can't parse GUI URLs in scheduler reply: %s", boincerror(retval) ); return retval; } project->gui_urls = "\n"+foo+"\n"; continue; } else if (match_tag(buf, "")) { retval = dup_element_contents( in, "", &code_sign_key ); if (retval) { msg_printf(project, MSG_INTERNAL_ERROR, "Can't parse code sign key in scheduler reply: %s", boincerror(retval) ); return ERR_XML_PARSE; } } else if (match_tag(buf, "")) { retval = dup_element_contents( in, "", &code_sign_key_signature ); if (retval) { msg_printf(project, MSG_INTERNAL_ERROR, "Can't parse code sign key signature in scheduler reply: %s", boincerror(retval) ); return ERR_XML_PARSE; } } else if (match_tag(buf, "")) { APP app; retval = app.parse(mf); if (retval) { msg_printf(project, MSG_INTERNAL_ERROR, "Can't parse application in scheduler reply: %s", boincerror(retval) ); } else { apps.push_back(app); } } else if (match_tag(buf, "")) { FILE_INFO file_info; retval = file_info.parse(mf, true); if (retval) { msg_printf(project, MSG_INTERNAL_ERROR, "Can't parse file info in scheduler reply: %s", boincerror(retval) ); } else { file_infos.push_back(file_info); } } else if (match_tag(buf, "")) { APP_VERSION av; retval = av.parse(mf); if (retval) { msg_printf(project, MSG_INTERNAL_ERROR, "Can't parse application version in scheduler reply: %s", boincerror(retval) ); } else { app_versions.push_back(av); } } else if (match_tag(buf, "")) { WORKUNIT wu; retval = wu.parse(mf); if (retval) { msg_printf(project, MSG_INTERNAL_ERROR, "Can't parse workunit in scheduler reply: %s", boincerror(retval) ); } else { workunits.push_back(wu); } } else if (match_tag(buf, "")) { RESULT result; // make sure this is here so constructor // gets called each time retval = result.parse_server(mf); if (retval) { msg_printf(project, MSG_INTERNAL_ERROR, "Can't parse task in scheduler reply: %s", boincerror(retval) ); } else { results.push_back(result); } } else if (match_tag(buf, "")) { RESULT result; retval = result.parse_name(in, ""); if (retval) { msg_printf(project, MSG_INTERNAL_ERROR, "Can't parse ack in scheduler reply: %s", boincerror(retval) ); } else { result_acks.push_back(result); } } else if (match_tag(buf, "")) { RESULT result; retval = result.parse_name(in, ""); if (retval) { msg_printf(project, MSG_INTERNAL_ERROR, "Can't parse result abort in scheduler reply: %s", boincerror(retval) ); } else { result_abort.push_back(result); } } else if (match_tag(buf, "")) { RESULT result; retval = result.parse_name(in, ""); if (retval) { msg_printf(project, MSG_INTERNAL_ERROR, "Can't parse result abort-if-not-started in scheduler reply: %s", boincerror(retval) ); } else { result_abort_if_not_started.push_back(result); } } else if (parse_str(buf, "", delete_file_name)) { file_deletes.push_back(delete_file_name); } else if (parse_str(buf, "")) { message_ack = true; } else if (match_tag(buf, "")) { project_is_down = true; } else if (parse_str(buf, "", project->email_hash, sizeof(project->email_hash))) { continue; } else if (parse_str(buf, "", project->cross_project_id, sizeof(project->cross_project_id))) { continue; } else if (match_tag(buf, "")) { retval = gstate.handle_trickle_down(project, in); if (retval) { msg_printf(project, MSG_INTERNAL_ERROR, "handle_trickle_down failed: %s", boincerror(retval) ); } continue; } else if (parse_bool(buf, "non_cpu_intensive", project->non_cpu_intensive)) { continue; } else if (parse_bool(buf, "ended", project->ended)) { continue; } else if (parse_bool(buf, "verify_files_on_app_start", project->verify_files_on_app_start)) { continue; } else if (match_tag(buf, "")) { send_file_list = true; } else if (parse_int(buf, "", send_time_stats_log)){ continue; } else if (parse_int(buf, "", send_job_log)) { continue; } else if (parse_int(buf, "", scheduler_version)) { continue; } else if (match_tag(buf, "")) { retval = project->parse_project_files(mf, true); #ifdef ENABLE_AUTO_UPDATE } else if (match_tag(buf, "")) { retval = auto_update.parse(mf); if (!retval) auto_update.present = true; #endif } else if (strlen(buf)>1){ if (log_flags.unparsed_xml) { msg_printf(0, MSG_INFO, "[unparsed_xml] SCHEDULER_REPLY::parse(): unrecognized %s\n", buf ); } } } if (found_start_tag) { msg_printf(project, MSG_INTERNAL_ERROR, "No close tag in scheduler reply"); } else { msg_printf(project, MSG_INTERNAL_ERROR, "No start tag in scheduler reply"); } return ERR_XML_PARSE; } USER_MESSAGE::USER_MESSAGE(char* m, char* p) { message = m; priority = p; } const char *BOINC_RCSID_11c806525b = "$Id$";