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boinc/client/client_state.C

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// 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.,
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#include "cpp.h"
#ifdef _WIN32
#include "boinc_win.h"
#else
#include "config.h"
#include <unistd.h>
#include <csignal>
#include <cstdio>
#include <cstdlib>
#include <ctime>
#include <cstdarg>
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#endif
#include "parse.h"
#include "util.h"
#include "error_numbers.h"
#include "filesys.h"
#include "file_names.h"
#include "hostinfo.h"
#include "hostinfo_network.h"
#include "network.h"
#include "http_curl.h"
#include "client_msgs.h"
#include "client_state.h"
using std::max;
CLIENT_STATE gstate;
CLIENT_STATE::CLIENT_STATE() {
http_ops = new HTTP_OP_SET();
file_xfers = new FILE_XFER_SET(http_ops);
pers_file_xfers = new PERS_FILE_XFER_SET(file_xfers);
scheduler_op = new SCHEDULER_OP(http_ops);
client_state_dirty = false;
exit_when_idle = false;
check_all_logins = false;
allow_remote_gui_rpc = false;
cmdline_gui_rpc_port = 0;
run_cpu_benchmarks = false;
skip_cpu_benchmarks = false;
file_xfer_giveup_period = PERS_GIVEUP;
contacted_sched_server = false;
tasks_suspended = false;
network_suspended = false;
suspend_reason = 0;
network_suspend_reason = 0;
core_client_major_version = BOINC_MAJOR_VERSION;
core_client_minor_version = BOINC_MINOR_VERSION;
core_client_release = BOINC_RELEASE;
platform_name = HOSTTYPE;
exit_after_app_start_secs = 0;
app_started = 0;
exit_before_upload = false;
proxy_info.clear();
show_projects = false;
strcpy(detach_project_url, "");
strcpy(main_host_venue, "");
strcpy(attach_project_url, "");
strcpy(attach_project_auth, "");
run_mode.set(RUN_MODE_AUTO, 0);
network_mode.set(RUN_MODE_AUTO, 0);
started_by_screensaver = false;
requested_exit = false;
master_fetch_period = MASTER_FETCH_PERIOD;
retry_cap = RETRY_CAP;
master_fetch_retry_cap = MASTER_FETCH_RETRY_CAP;
master_fetch_interval = MASTER_FETCH_INTERVAL;
sched_retry_delay_min = SCHED_RETRY_DELAY_MIN;
sched_retry_delay_max = SCHED_RETRY_DELAY_MAX;
pers_retry_delay_min = PERS_RETRY_DELAY_MIN;
pers_retry_delay_max = PERS_RETRY_DELAY_MAX;
pers_giveup = PERS_GIVEUP;
executing_as_daemon = false;
redirect_io = false;
disable_graphics = false;
work_fetch_no_new_work = false;
debt_interval_start = 0;
total_wall_cpu_time_this_debt_interval = 0;
must_schedule_cpus = true;
must_enforce_cpu_schedule = true;
no_gui_rpc = false;
new_version_check_time = 0;
detach_console = false;
#ifdef SANDBOX
g_use_sandbox = true; // User can override with -insecure command-line arg
#else
g_use_sandbox = false;
#endif
initialized = false;
}
void CLIENT_STATE::show_host_info() {
char buf[256], buf2[256];
msg_printf(NULL, MSG_INFO,
"Processor: %d %s %s",
host_info.p_ncpus, host_info.p_vendor, host_info.p_model
);
nbytes_to_string(host_info.m_nbytes, 0, buf, sizeof(buf));
nbytes_to_string(host_info.m_swap, 0, buf2, sizeof(buf2));
msg_printf(NULL, MSG_INFO,
"Memory: %s physical, %s virtual",
buf, buf2
);
nbytes_to_string(host_info.d_total, 0, buf, sizeof(buf));
nbytes_to_string(host_info.d_free, 0, buf2, sizeof(buf2));
msg_printf(NULL, MSG_INFO, "Disk: %s total, %s free", buf, buf2);
}
int CLIENT_STATE::init() {
int retval;
unsigned int i;
char buf[256];
PROJECT* p;
srand((unsigned int)time(0));
now = dtime();
scheduler_op->url_random = drand();
const char* debug_str="";
#ifdef _DEBUG
debug_str = " (DEBUG)";
#endif
msg_printf(
NULL, MSG_INFO, "Starting BOINC client version %d.%d.%d for %s%s",
core_client_major_version, core_client_minor_version,
core_client_release, platform_name, debug_str
);
log_flags.show();
msg_printf(NULL, MSG_INFO, "Libraries: %s", curl_version());
if (executing_as_daemon) {
msg_printf(NULL, MSG_INFO, "Executing as a daemon");
}
relative_to_absolute("", buf);
msg_printf(NULL, MSG_INFO, "Data directory: %s", buf);
// if we are running as anybody other than localsystem
// and executing as a daemon then app graphics won't work.
// display a note at startup reminding user of that.
//
#ifdef _WIN32
DWORD buf_size = sizeof(buf);
LPTSTR pbuf = buf;
GetUserName(pbuf, &buf_size);
if (executing_as_daemon && (0 != strcmp("SYSTEM", pbuf))) {
msg_printf(NULL, MSG_INFO,
"BOINC is running as a service and as a non-system user."
);
msg_printf(NULL, MSG_INFO,
"No application graphics will be available."
);
disable_graphics = true;
}
#endif
#ifdef __APPLE__
if (executing_as_daemon) {
msg_printf(NULL, MSG_INFO,
"BOINC is running as a daemon."
);
msg_printf(NULL, MSG_INFO,
"No application graphics will be available."
);
disable_graphics = true;
}
#endif
parse_account_files();
parse_statistics_files();
// check for app_info.xml file in project dirs.
// If find, read app info from there, set project.anonymous_platform
//
check_anonymous();
// Parse the client state file,
// ignoring any <project> tags (and associated stuff)
// for projects with no account file
//
host_info.clear_host_info();
parse_state_file();
parse_account_files_venue();
host_info.get_host_info();
set_ncpus();
show_host_info();
// Check to see if we can write the state file.
//
retval = write_state_file();
if (retval) {
msg_printf(NULL, MSG_ERROR, "Couldn't write state file");
msg_printf(NULL, MSG_ERROR,
"Make sure you have permissions set correctly"
);
return retval;
}
// scan user prefs; create file records
//
parse_preferences_for_user_files();
print_summary();
do_cmdline_actions();
if ((core_client_major_version != old_major_version)
|| (core_client_minor_version != old_minor_version)
|| (core_client_release != old_release)
) {
msg_printf(NULL, MSG_INFO,
"Version change (%d.%d.%d -> %d.%d.%d); running CPU benchmarks\n",
old_major_version, old_minor_version, old_release,
core_client_major_version, core_client_minor_version,
core_client_release
);
run_cpu_benchmarks = true;
}
// show host IDs and venues on various projects
//
for (i=0; i<projects.size(); i++) {
p = projects[i];
if (p->hostid) {
sprintf(buf, "%d", p->hostid);
} else {
strcpy(buf, "not assigned yet");
}
msg_printf(p, MSG_INFO,
"URL: %s; Computer ID: %s; location: %s; project prefs: %s",
p->master_url,
buf, strlen(p->host_venue)?p->host_venue:"(none)",
p->using_venue_specific_prefs?p->host_venue:"default"
);
}
read_global_prefs();
// do CPU scheduler and work fetch
//
request_schedule_cpus("Startup");
request_work_fetch("Startup");
debt_interval_start = now;
// set up the project and slot directories
//
delete_old_slot_dirs();
retval = make_project_dirs();
if (retval) return retval;
active_tasks.init();
active_tasks.report_overdue();
active_tasks.handle_upload_files();
// Just to be on the safe side; something may have been modified
//
set_client_state_dirty("init");
// initialize GUI RPC data structures before we start accepting
// GUI RPC's.
//
acct_mgr_info.init();
project_init.init();
if (!no_gui_rpc) {
// When we're running at boot time,
// it may be a few seconds before we can socket/bind/listen.
// So retry a few times.
//
for (i=0; i<30; i++) {
retval = gui_rpcs.init();
if (!retval) break;
boinc_sleep(1.0);
}
if (retval) return retval;
}
// Has platform name changed? If so reset all.
// This could happen e.g. if user copies files from PPC to Intel Mac
//
if (statefile_platform_name.size() && strcmp(platform_name, statefile_platform_name.c_str())) {
msg_printf(NULL, MSG_INFO,
"Platform changed from %s to %s - resetting projects",
statefile_platform_name.c_str(), platform_name
);
for (i=0; i<projects.size(); i++) {
p = projects[i];
reset_project(p);
}
}
#if (defined(SANDBOX) && ! defined(_WIN32))
if (g_use_sandbox) {
#ifdef _DEBUG
boinc_project_gid = getegid();
#else
retval = lookup_group(BOINC_PROJECT_GROUP_NAME, boinc_project_gid);
if (retval) return retval;
#endif // _DEBUG
} else {
boinc_project_gid = 0;
}
#endif
check_file_existence();
initialized = true;
return 0;
}
static void double_to_timeval(double x, timeval& t) {
t.tv_sec = (int)x;
t.tv_usec = (int)(1000000*(x - (int)x));
}
FDSET_GROUP curl_fds;
FDSET_GROUP gui_rpc_fds;
FDSET_GROUP all_fds;
// Spend x seconds either doing I/O (if possible) or sleeping.
//
void CLIENT_STATE::do_io_or_sleep(double x) {
int n;
struct timeval tv;
now = dtime();
double end_time = now + x;
int loops = 0;
while (1) {
curl_fds.zero();
gui_rpc_fds.zero();
http_ops->get_fdset(curl_fds);
all_fds = curl_fds;
gui_rpcs.get_fdset(gui_rpc_fds, all_fds);
double_to_timeval(x, tv);
n = select(
all_fds.max_fd+1,
&all_fds.read_fds, &all_fds.write_fds, &all_fds.exc_fds,
&tv
);
//printf("select in %d out %d\n", all_fds.max_fd, n);
// Note: curl apparently likes to have curl_multi_perform()
// (called from net_xfers->got_select())
// called pretty often, even if no descriptors are enabled.
// So do the "if (n==0) break" AFTER the got_selects().
http_ops->got_select(all_fds, x);
gui_rpcs.got_select(all_fds);
if (n==0) break;
// Limit number of times thru this loop. Can get
// stuck in while loop, if network isn't available,
// DNS lookups tend to eat CPU cycles.
//
if (loops++ > 99) {
boinc_sleep(.01);
break;
}
now = dtime();
if (now > end_time) break;
x = end_time - now;
}
}
#define POLL_ACTION(name, func) \
do { if (func()) { \
++actions; \
if (log_flags.poll_debug) { \
msg_printf(0, MSG_INFO, "[poll_debug] CLIENT_STATE::poll_slow_events(): " #name "\n"); \
} \
} } while(0)
// Poll the client's finite-state machines
// possibly triggering state transitions.
// Returns true if something happened
// (in which case should call this again immediately)
//
bool CLIENT_STATE::poll_slow_events() {
int actions = 0, retval;
static int last_suspend_reason=0;
static bool tasks_restarted = false;
now = dtime();
if (should_run_cpu_benchmarks() && !are_cpu_benchmarks_running() && have_nontentative_project()) {
run_cpu_benchmarks = false;
start_cpu_benchmarks();
}
check_suspend_activities(suspend_reason);
// suspend or resume activities (but only if already did startup)
//
if (tasks_restarted) {
if (suspend_reason) {
if (!tasks_suspended) {
suspend_tasks(suspend_reason);
}
last_suspend_reason = suspend_reason;
} else {
if (tasks_suspended) {
resume_tasks(last_suspend_reason);
}
}
}
tasks_suspended = (suspend_reason != 0);
// if we're doing CPU benchmarks, don't do much else
//
if (suspend_reason & SUSPEND_REASON_BENCHMARKS) {
cpu_benchmarks_poll();
// besides waiting for applications to become suspended
//
if (active_tasks.is_task_executing()) {
POLL_ACTION(active_tasks, active_tasks.poll);
}
}
check_suspend_network(network_suspend_reason);
// if a recent GUI RPC needs network access, allow it
//
if (gui_rpcs.recent_rpc_needs_network(300)) {
network_suspend_reason = 0;
}
if (network_suspend_reason) {
if (!network_suspended) {
suspend_network(network_suspend_reason);
network_suspended = true;
}
} else {
if (network_suspended) {
resume_network();
network_suspended = false;
}
}
// NOTE:
// The order of calls in the following lists generally doesn't matter,
// except for the following:
// must have:
// active_tasks_poll
// handle_finished_apps
// possibly_schedule_cpus
// enforce_schedule
// in that order (active_tasks_poll() sets must_schedule_cpus,
// and handle_finished_apps() must be done before possibly_schedule_cpus()
ss_logic.poll();
check_project_timeout();
POLL_ACTION(active_tasks , active_tasks.poll );
POLL_ACTION(garbage_collect , garbage_collect );
POLL_ACTION(update_results , update_results );
POLL_ACTION(gui_http , gui_http.poll );
if (!network_suspended) {
net_stats.poll(*file_xfers, *http_ops);
POLL_ACTION(acct_mgr , acct_mgr_info.poll );
POLL_ACTION(file_xfers , file_xfers->poll );
POLL_ACTION(pers_file_xfers , pers_file_xfers->poll );
POLL_ACTION(handle_pers_file_xfers , handle_pers_file_xfers );
}
POLL_ACTION(handle_finished_apps , handle_finished_apps );
if (!tasks_suspended) {
POLL_ACTION(possibly_schedule_cpus, possibly_schedule_cpus );
POLL_ACTION(enforce_schedule , enforce_schedule );
tasks_restarted = true;
}
if (!tasks_suspended && !network_suspended) {
POLL_ACTION(compute_work_requests, compute_work_requests );
}
if (!network_suspended) {
POLL_ACTION(scheduler_rpc , scheduler_rpc_poll );
}
retval = write_state_file_if_needed();
if (retval) {
msg_printf(NULL, MSG_ERROR,
"Couldn't write state file: %s", boincerror(retval)
);
boinc_sleep(60.0);
// if we can't write the state file twice in a row, something's hosed;
// better to not keep trying
//
retval = write_state_file_if_needed();
if (retval) {
msg_printf(NULL, MSG_ERROR,
"Couldn't write state file: %s; giving up", boincerror(retval)
);
exit(retval);
}
}
if (log_flags.poll_debug) {
msg_printf(0, MSG_INFO,
"[poll_debug] CLIENT_STATE::do_something(): End poll: %d tasks active\n", actions
);
}
if (actions > 0) {
return true;
} else {
time_stats.update(!tasks_suspended);
// on some systems, gethostbyname() only starts working
// a few minutes after system boot.
// If it didn't work before, try it again.
//
if (!strlen(host_info.domain_name)) {
host_info.get_local_network_info();
}
return false;
}
}
// See if the project specified by master_url already exists
// in the client state record. Ignore any trailing "/" characters
//
PROJECT* CLIENT_STATE::lookup_project(const char* master_url) {
int len1, len2;
char *mu;
len1 = (int)strlen(master_url);
if (master_url[strlen(master_url)-1] == '/') len1--;
for (unsigned int i=0; i<projects.size(); i++) {
mu = projects[i]->master_url;
len2 = (int)strlen(mu);
if (mu[strlen(mu)-1] == '/') len2--;
if (!strncmp(master_url, projects[i]->master_url, max(len1,len2))) {
return projects[i];
}
}
return 0;
}
APP* CLIENT_STATE::lookup_app(PROJECT* p, const char* name) {
for (unsigned int i=0; i<apps.size(); i++) {
APP* app = apps[i];
if (app->project == p && !strcmp(name, app->name)) return app;
}
return 0;
}
RESULT* CLIENT_STATE::lookup_result(PROJECT* p, const char* name) {
for (unsigned int i=0; i<results.size(); i++) {
RESULT* rp = results[i];
if (rp->project == p && !strcmp(name, rp->name)) return rp;
}
return 0;
}
WORKUNIT* CLIENT_STATE::lookup_workunit(PROJECT* p, const char* name) {
for (unsigned int i=0; i<workunits.size(); i++) {
WORKUNIT* wup = workunits[i];
if (wup->project == p && !strcmp(name, wup->name)) return wup;
}
return 0;
}
APP_VERSION* CLIENT_STATE::lookup_app_version(APP* app, int version_num) {
for (unsigned int i=0; i<app_versions.size(); i++) {
APP_VERSION* avp = app_versions[i];
if (avp->app == app && version_num==avp->version_num) {
return avp;
}
}
return 0;
}
FILE_INFO* CLIENT_STATE::lookup_file_info(PROJECT* p, const char* name) {
for (unsigned int i=0; i<file_infos.size(); i++) {
FILE_INFO* fip = file_infos[i];
if (fip->project == p && !strcmp(fip->name, name)) {
return fip;
}
}
return 0;
}
// Find the active task for a given result
//
ACTIVE_TASK* CLIENT_STATE::lookup_active_task_by_result(RESULT* rep) {
for (unsigned int i = 0; i < active_tasks.active_tasks.size(); i ++) {
if (active_tasks.active_tasks[i]->result == rep) {
return active_tasks.active_tasks[i];
}
}
return NULL;
}
// functions to create links between state objects
// (which, in their XML form, reference one another by name)
// Return nonzero if already in client state.
//
int CLIENT_STATE::link_app(PROJECT* p, APP* app) {
if (lookup_app(p, app->name)) return ERR_NOT_UNIQUE;
app->project = p;
return 0;
}
int CLIENT_STATE::link_file_info(PROJECT* p, FILE_INFO* fip) {
if (lookup_file_info(p, fip->name)) return ERR_NOT_UNIQUE;
fip->project = p;
return 0;
}
int CLIENT_STATE::link_app_version(PROJECT* p, APP_VERSION* avp) {
APP* app;
FILE_INFO* fip;
unsigned int i;
avp->project = p;
app = lookup_app(p, avp->app_name);
if (!app) {
msg_printf(p, MSG_ERROR,
"State file error: bad application name %s",
avp->app_name
);
return ERR_NOT_FOUND;
}
avp->app = app;
if (lookup_app_version(app, avp->version_num)) return ERR_NOT_UNIQUE;
for (i=0; i<avp->app_files.size(); i++) {
FILE_REF& file_ref = avp->app_files[i];
fip = lookup_file_info(p, file_ref.file_name);
if (!fip) {
msg_printf(p, MSG_ERROR,
"State file error: missing application file %s",
file_ref.file_name
);
return ERR_NOT_FOUND;
}
// any file associated with an app version must be signed
//
fip->signature_required = true;
file_ref.file_info = fip;
}
return 0;
}
int CLIENT_STATE::link_file_ref(PROJECT* p, FILE_REF* file_refp) {
FILE_INFO* fip;
fip = lookup_file_info(p, file_refp->file_name);
if (!fip) {
msg_printf(p, MSG_ERROR,
"State file error: missing file %s",
file_refp->file_name
);
return ERR_NOT_FOUND;
}
file_refp->file_info = fip;
return 0;
}
int CLIENT_STATE::link_workunit(PROJECT* p, WORKUNIT* wup) {
APP* app;
APP_VERSION* avp;
unsigned int i;
int retval;
app = lookup_app(p, wup->app_name);
if (!app) {
msg_printf(p, MSG_ERROR,
"State file error: missing application %s",
wup->app_name
);
return ERR_NOT_FOUND;
}
avp = lookup_app_version(app, wup->version_num);
if (!avp) {
msg_printf(p, MSG_ERROR,
"State file error: no application version %s %d\n",
wup->app_name, wup->version_num
);
return ERR_NOT_FOUND;
}
wup->project = p;
wup->app = app;
wup->avp = avp;
for (i=0; i<wup->input_files.size(); i++) {
retval = link_file_ref(p, &wup->input_files[i]);
if (retval) {
msg_printf(p, MSG_ERROR,
"State file error: missing input file %s\n",
wup->input_files[i].file_name
);
return retval;
}
}
return 0;
}
int CLIENT_STATE::link_result(PROJECT* p, RESULT* rp) {
WORKUNIT* wup;
unsigned int i;
int retval;
wup = lookup_workunit(p, rp->wu_name);
if (!wup) {
msg_printf(p, MSG_ERROR,
"State file error: missing task %s\n", rp->wu_name
);
return ERR_NOT_FOUND;
}
rp->project = p;
rp->wup = wup;
rp->app = wup->app;
for (i=0; i<rp->output_files.size(); i++) {
retval = link_file_ref(p, &rp->output_files[i]);
if (retval) return retval;
}
return 0;
}
// Print debugging information about how many projects/files/etc
// are currently in the client state record
//
void CLIENT_STATE::print_summary() {
unsigned int i;
double t;
if (!log_flags.state_debug) return;
msg_printf(0, MSG_INFO, "[state_debug] CLIENT_STATE::print_summary(): Client state summary:\n");
msg_printf(0, MSG_INFO, "%d projects:\n", (int)projects.size());
for (i=0; i<projects.size(); i++) {
t = projects[i]->min_rpc_time;
if (t) {
msg_printf(0, MSG_INFO, " %s min RPC %f.0 seconds from now\n", projects[i]->master_url, t-now);
} else {
msg_printf(0, MSG_INFO, " %s\n", projects[i]->master_url);
}
}
msg_printf(0, MSG_INFO, "%d file_infos:\n", (int)file_infos.size());
for (i=0; i<file_infos.size(); i++) {
msg_printf(0, MSG_INFO, " %s status:%d %s\n", file_infos[i]->name, file_infos[i]->status, file_infos[i]->pers_file_xfer?"active":"inactive");
}
msg_printf(0, MSG_INFO, "%d app_versions\n", (int)app_versions.size());
for (i=0; i<app_versions.size(); i++) {
msg_printf(0, MSG_INFO, " %s %d\n", app_versions[i]->app_name, app_versions[i]->version_num);
}
msg_printf(0, MSG_INFO, "%d workunits\n", (int)workunits.size());
for (i=0; i<workunits.size(); i++) {
msg_printf(0, MSG_INFO, " %s\n", workunits[i]->name);
}
msg_printf(0, MSG_INFO, "%d results\n", (int)results.size());
for (i=0; i<results.size(); i++) {
msg_printf(0, MSG_INFO, " %s state:%d\n", results[i]->name, results[i]->state);
}
msg_printf(0, MSG_INFO, "%d persistent file xfers\n", (int)pers_file_xfers->pers_file_xfers.size());
for (i=0; i<pers_file_xfers->pers_file_xfers.size(); i++) {
msg_printf(0, MSG_INFO, " %s http op state: %d\n", pers_file_xfers->pers_file_xfers[i]->fip->name, (pers_file_xfers->pers_file_xfers[i]->fxp?pers_file_xfers->pers_file_xfers[i]->fxp->http_op_state:-1));
}
msg_printf(0, MSG_INFO, "%d active tasks\n", (int)active_tasks.active_tasks.size());
for (i=0; i<active_tasks.active_tasks.size(); i++) {
msg_printf(0, MSG_INFO, " %s\n", active_tasks.active_tasks[i]->result->name);
}
}
bool CLIENT_STATE::garbage_collect() {
static double last_time=0;
if (gstate.now - last_time < 1.0) return false;
last_time = gstate.now;
return garbage_collect_always();
}
// delete unneeded records and files
//
bool CLIENT_STATE::garbage_collect_always() {
unsigned int i, j;
int failnum;
FILE_INFO* fip;
RESULT* rp;
WORKUNIT* wup;
APP_VERSION* avp, *avp2;
vector<RESULT*>::iterator result_iter;
vector<WORKUNIT*>::iterator wu_iter;
vector<FILE_INFO*>::iterator fi_iter;
vector<APP_VERSION*>::iterator avp_iter;
bool action = false, found;
string error_msgs;
PROJECT* project;
// zero references counts on WUs, FILE_INFOs and APP_VERSIONs
for (i=0; i<workunits.size(); i++) {
wup = workunits[i];
wup->ref_cnt = 0;
}
for (i=0; i<file_infos.size(); i++) {
fip = file_infos[i];
fip->ref_cnt = 0;
}
for (i=0; i<app_versions.size(); i++) {
avp = app_versions[i];
avp->ref_cnt = 0;
}
// reference-count user and project files
//
for (i=0; i<projects.size(); i++) {
project = projects[i];
for (j=0; j<project->user_files.size(); j++) {
project->user_files[j].file_info->ref_cnt++;
}
for (j=0; j<project->project_files.size(); j++) {
project->project_files[j].file_info->ref_cnt++;
}
}
// Scan through RESULTs.
// delete RESULTs that have been reported and acked.
// Check for results whose WUs had download failures
// Check for results that had upload failures
// Reference-count output files
// Reference-count WUs
//
result_iter = results.begin();
while (result_iter != results.end()) {
rp = *result_iter;
if (rp->got_server_ack) {
if (log_flags.state_debug) {
msg_printf(0, MSG_INFO,
"[state_debug] CLIENT_STATE::garbage_collect(): deleting result %s\n",
rp->name
);
}
delete rp;
result_iter = results.erase(result_iter);
action = true;
continue;
}
// See if the files for this result's workunit had
// any errors (download failure, MD5, RSA, etc)
// and we don't already have an error for this result
//
if (!rp->ready_to_report) {
wup = rp->wup;
if (wup->had_download_failure(failnum)) {
wup->get_file_errors(error_msgs);
report_result_error(
*rp, "WU download error: %s", error_msgs.c_str()
);
} else if (wup->avp && wup->avp->had_download_failure(failnum)) {
wup->avp->get_file_errors(error_msgs);
report_result_error(
*rp, "app_version download error: %s", error_msgs.c_str()
);
}
}
bool found_error = false;
string error_str;
for (i=0; i<rp->output_files.size(); i++) {
// If one of the output files had an upload failure,
// mark the result as done and report the error.
// The result, workunits, and file infos
// will be cleaned up after the server is notified
//
if (!rp->ready_to_report) {
fip = rp->output_files[i].file_info;
if (fip->had_failure(failnum)) {
string msg;
fip->failure_message(msg);
found_error = true;
error_str += msg;
}
}
rp->output_files[i].file_info->ref_cnt++;
}
if (found_error) {
report_result_error(*rp, error_str.c_str());
}
rp->wup->ref_cnt++;
result_iter++;
}
// delete WORKUNITs not referenced by any in-progress result;
// reference-count files and APP_VERSIONs referred to by other WUs
//
wu_iter = workunits.begin();
while (wu_iter != workunits.end()) {
wup = *wu_iter;
if (wup->ref_cnt == 0) {
if (log_flags.state_debug) {
msg_printf(0, MSG_INFO,
"[state_debug] CLIENT_STATE::garbage_collect(): deleting workunit %s\n",
wup->name
);
}
delete wup;
wu_iter = workunits.erase(wu_iter);
action = true;
} else {
for (i=0; i<wup->input_files.size(); i++) {
wup->input_files[i].file_info->ref_cnt++;
}
wup->avp->ref_cnt++;
wu_iter++;
}
}
// go through APP_VERSIONs;
// delete any not referenced by any WORKUNIT
// and superceded by a more recent version.
//
avp_iter = app_versions.begin();
while (avp_iter != app_versions.end()) {
avp = *avp_iter;
if (avp->ref_cnt == 0) {
found = false;
for (j=0; j<app_versions.size(); j++) {
avp2 = app_versions[j];
if (avp2->app==avp->app && avp2->version_num>avp->version_num) {
found = true;
break;
}
}
if (found) {
delete avp;
avp_iter = app_versions.erase(avp_iter);
action = true;
} else {
avp_iter++;
}
} else {
avp_iter++;
}
}
// Then go through remaining APP_VERSIONs,
// bumping refcnt of associated files.
//
for (i=0; i<app_versions.size(); i++) {
avp = app_versions[i];
for (j=0; j<avp->app_files.size(); j++) {
avp->app_files[j].file_info->ref_cnt++;
}
}
// reference count files involved in PERS_FILE_XFER or FILE_XFER
// (this seems redundant, but apparently not)
//
for (i=0; i<file_xfers->file_xfers.size(); i++) {
file_xfers->file_xfers[i]->fip->ref_cnt++;
}
for (i=0; i<pers_file_xfers->pers_file_xfers.size(); i++) {
pers_file_xfers->pers_file_xfers[i]->fip->ref_cnt++;
}
// delete FILE_INFOs (and corresponding files) that are not referenced
// Don't do this if sticky and not marked for delete
//
fi_iter = file_infos.begin();
while (fi_iter != file_infos.end()) {
fip = *fi_iter;
bool exempt = fip->sticky;
if (fip->status < 0) exempt = false;
if (fip->marked_for_delete) exempt = false;
if (fip->ref_cnt==0 && !exempt) {
if (fip->pers_file_xfer) {
pers_file_xfers->remove(fip->pers_file_xfer);
delete fip->pers_file_xfer;
fip->pers_file_xfer = 0;
}
fip->delete_file();
if (log_flags.state_debug) {
msg_printf(0, MSG_INFO,
"[state_debug] CLIENT_STATE::garbage_collect(): deleting file %s\n",
fip->name
);
}
delete fip;
fi_iter = file_infos.erase(fi_iter);
action = true;
} else {
fi_iter++;
}
}
if (action) {
print_summary();
}
return action;
}
// For results that are waiting for file transfer,
// check if the transfer is done,
// and if so switch to new state and take other actions.
// Also set some fields for newly-aborted results.
//
bool CLIENT_STATE::update_results() {
RESULT* rp;
vector<RESULT*>::iterator result_iter;
bool action = false;
static double last_time=0;
int retval;
if (gstate.now - last_time < 1.0) return false;
last_time = gstate.now;
result_iter = results.begin();
while (result_iter != results.end()) {
rp = *result_iter;
switch (rp->state) {
case RESULT_NEW:
rp->state = RESULT_FILES_DOWNLOADING;
action = true;
break;
case RESULT_FILES_DOWNLOADING:
retval = input_files_available(rp, false);
if (!retval) {
rp->state = RESULT_FILES_DOWNLOADED;
if (rp->wup->avp->app_files.size()==0) {
// if this is a file-transfer app, start the upload phase
//
rp->state = RESULT_FILES_UPLOADING;
rp->clear_uploaded_flags();
} else {
// else try to start the computation
//
request_schedule_cpus("files downloaded");
}
action = true;
}
break;
case RESULT_FILES_UPLOADING:
if (rp->is_upload_done()) {
rp->ready_to_report = true;
rp->completed_time = gstate.now;
rp->state = RESULT_FILES_UPLOADED;
action = true;
}
break;
case RESULT_FILES_UPLOADED:
break;
case RESULT_ABORTED:
if (!rp->ready_to_report) {
rp->ready_to_report = true;
rp->completed_time = now;
action = true;
}
break;
}
result_iter++;
}
return action;
}
// Returns true if client should exit because of debugging criteria
// (timeout or idle)
//
bool CLIENT_STATE::time_to_exit() {
if (!exit_when_idle && !exit_after_app_start_secs) return false;
if (exit_after_app_start_secs
&& (app_started>0)
&& ((now - app_started) >= exit_after_app_start_secs)
) {
msg_printf(NULL, MSG_INFO,
"Exiting because time is up: %d", exit_after_app_start_secs
);
return true;
}
if (exit_when_idle && (results.size() == 0) && contacted_sched_server) {
msg_printf(NULL, MSG_INFO, "exiting because no more results");
return true;
}
return false;
}
// Call this when a result has a nonrecoverable error.
// - back off on contacting the project's scheduler
// (so don't crash over and over)
// - Append a description of the error to result.stderr_out
// - If result state is FILES_DOWNLOADED, change it to COMPUTE_ERROR
// so that we don't try to run it again.
//
int CLIENT_STATE::report_result_error(RESULT& res, const char* format, ...) {
char buf[4096], err_msg[4096];
// The above store 1-line messages and short XML snippets.
// Shouldn't exceed a few hundred bytes.
unsigned int i;
int failnum;
// only do this once per result
//
if (res.ready_to_report) {
return 0;
}
res.ready_to_report = true;
res.completed_time = now;
va_list va;
va_start(va, format);
vsnprintf(err_msg, sizeof(err_msg), format, va);
va_end(va);
sprintf(buf, "Unrecoverable error for result %s (%s)", res.name, err_msg);
scheduler_op->backoff(res.project, buf);
sprintf( buf, "<message>\n%s\n</message>\n", err_msg);
res.stderr_out.append(buf);
switch(res.state) {
case RESULT_NEW:
case RESULT_FILES_DOWNLOADING:
// called from:
// CLIENT_STATE::garbage_collect()
// if WU or app_version had a download failure
//
if (!res.exit_status) {
res.exit_status = ERR_RESULT_DOWNLOAD;
}
break;
case RESULT_FILES_DOWNLOADED:
// called from:
// ACTIVE_TASK::start (if couldn't start app)
// ACTIVE_TASK::restart (if files missing)
// ACITVE_TASK_SET::restart_tasks (catch other error returns)
// ACTIVE_TASK::handle_exited_app (on nonzero exit or signal)
// ACTIVE_TASK::abort_task (if exceeded resource limit)
// CLIENT_STATE::schedule_cpus (catch-all for resume/start errors)
//
res.state = RESULT_COMPUTE_ERROR;
if (!res.exit_status) {
res.exit_status = ERR_RESULT_START;
}
break;
case RESULT_FILES_UPLOADING:
// called from
// CLIENT_STATE::garbage_collect() if result had an upload error
//
for (i=0; i<res.output_files.size(); i++) {
if (res.output_files[i].file_info->had_failure(failnum)) {
sprintf(buf,
"<upload_error>\n"
" <file_name>%s</file_name>\n"
" <error_code>%d</error_code>\n"
"</upload_error>\n",
res.output_files[i].file_info->name, failnum
);
res.stderr_out.append(buf);
}
}
if (!res.exit_status) {
res.exit_status = ERR_RESULT_UPLOAD;
}
break;
case RESULT_FILES_UPLOADED:
msg_printf(res.project, MSG_ERROR,
"Error reported for completed task %s", res.name
);
break;
}
res.stderr_out = res.stderr_out.substr(0, MAX_STDERR_LEN);
return 0;
}
// "Reset" a project: (clear error conditions)
// - stop all active tasks
// - stop all file transfers
// - stop scheduler RPC if any
// - delete all workunits and results
// - delete all apps and app_versions
// - garbage collect to delete unneeded files
//
// Note: does NOT delete persistent files or user-supplied files;
// does not delete project dir
//
int CLIENT_STATE::reset_project(PROJECT* project) {
unsigned int i;
APP_VERSION* avp;
APP* app;
vector<APP*>::iterator app_iter;
vector<APP_VERSION*>::iterator avp_iter;
RESULT* rp;
PERS_FILE_XFER* pxp;
msg_printf(project, MSG_INFO, "Resetting project");
active_tasks.abort_project(project);
// TODO: close sockets and open FILEs; delete the various objects
//
for (i=0; i<pers_file_xfers->pers_file_xfers.size(); i++) {
pxp = pers_file_xfers->pers_file_xfers[i];
if (pxp->fip->project == project) {
if (pxp->fxp) {
file_xfers->remove(pxp->fxp);
}
pers_file_xfers->remove(pxp);
i--;
}
}
// if we're in the middle of a scheduler op to the project, abort it
//
scheduler_op->abort(project);
// mark results as server-acked.
// This will cause garbage_collect to delete them,
// and in turn their WUs will be deleted
//
for (i=0; i<results.size(); i++) {
rp = results[i];
if (rp->project == project) {
rp->got_server_ack = true;
}
}
project->user_files.clear();
project->project_files.clear();
garbage_collect_always();
// forcibly remove apps and app_versions
// (but not if anonymous platform)
//
if (!project->anonymous_platform) {
avp_iter = app_versions.begin();
while (avp_iter != app_versions.end()) {
avp = *avp_iter;
if (avp->project == project) {
avp_iter = app_versions.erase(avp_iter);
delete avp;
} else {
avp_iter++;
}
}
app_iter = apps.begin();
while (app_iter != apps.end()) {
app = *app_iter;
if (app->project == project) {
app_iter = apps.erase(app_iter);
delete app;
} else {
app_iter++;
}
}
garbage_collect_always();
}
project->duration_correction_factor = 1;
project->ams_resource_share = 0;
write_state_file();
return 0;
}
// "Detach" a project:
// - Reset (see above)
// - delete all file infos
// - delete account file
// - delete account directory
//
int CLIENT_STATE::detach_project(PROJECT* project) {
vector<PROJECT*>::iterator project_iter;
vector<FILE_INFO*>::iterator fi_iter;
FILE_INFO* fip;
PROJECT* p;
char path[256];
int retval;
reset_project(project);
msg_printf(project, MSG_INFO, "Detaching from project");
// delete all FILE_INFOs associated with this project
//
fi_iter = file_infos.begin();
while (fi_iter != file_infos.end()) {
fip = *fi_iter;
if (fip->project == project) {
fi_iter = file_infos.erase(fi_iter);
delete fip;
} else {
fi_iter++;
}
}
// if global prefs came from this project, delete file and reinit
//
p = lookup_project(global_prefs.source_project);
if (p == project) {
boinc_delete_file(GLOBAL_PREFS_FILE_NAME);
global_prefs.defaults();
}
// find project and remove it from the vector
//
for (project_iter = projects.begin(); project_iter != projects.end(); project_iter++) {
p = *project_iter;
if (p == project) {
project_iter = projects.erase(project_iter);
break;
}
}
// delete statistics file
//
get_statistics_filename(project->master_url, path);
retval = boinc_delete_file(path);
if (retval) {
msg_printf(project, MSG_ERROR,
"Can't delete statistics file: %s", boincerror(retval)
);
}
// delete account file
//
get_account_filename(project->master_url, path);
retval = boinc_delete_file(path);
if (retval) {
msg_printf(project, MSG_ERROR,
"Can't delete account file: %s", boincerror(retval)
);
}
// remove project directory and its contents
//
retval = remove_project_dir(*project);
if (retval) {
msg_printf(project, MSG_ERROR,
"Can't delete project directory: %s", boincerror(retval)
);
}
delete project;
write_state_file();
return 0;
}
// Quit running applications, quit benchmarks,
// write the client_state.xml file
// (in principle we could also terminate net_xfers here,
// e.g. flush buffers, but why bother)
//
int CLIENT_STATE::quit_activities() {
int retval;
// calculate long-term debts (for state file)
//
adjust_debts();
retval = active_tasks.exit_tasks();
if (retval) {
msg_printf(NULL, MSG_ERROR,
"Couldn't exit tasks: %s", boincerror(retval)
);
}
write_state_file();
gui_rpcs.close();
abort_cpu_benchmarks();
return 0;
}
// return a random double in the range [rmin,rmax)
static inline double rand_range(double rmin, double rmax) {
if (rmin < rmax) {
return drand() * (rmax-rmin) + rmin;
} else {
return rmin;
}
}
// return a random double in the range [MIN,min(e^n,MAX))
//
double calculate_exponential_backoff( int n, double MIN, double MAX) {
double rmax = std::min(MAX, exp((double)n));
return rand_range(MIN, rmax);
}
bool CLIENT_STATE::have_tentative_project() {
unsigned int i;
for (i=0; i<projects.size(); i++) {
PROJECT* p = projects[i];
if (p->tentative) return true;
}
return false;
}
bool CLIENT_STATE::have_nontentative_project() {
unsigned int i;
for (i=0; i<projects.size(); i++) {
PROJECT* p = projects[i];
if (!p->tentative) return true;
}
return false;
}
const char *BOINC_RCSID_e836980ee1 = "$Id$";
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