mirror of https://github.com/BOINC/boinc.git
278 lines
7.8 KiB
C++
278 lines
7.8 KiB
C++
// This file is part of BOINC.
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// http://boinc.berkeley.edu
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// Copyright (C) 2010 University of California
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//
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// BOINC is free software; you can redistribute it and/or modify it
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// under the terms of the GNU Lesser General Public License
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// as published by the Free Software Foundation,
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// either version 3 of the License, or (at your option) any later version.
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//
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// BOINC is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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// See the GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with BOINC. If not, see <http://www.gnu.org/licenses/>.
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// vboxwrapper [options] BOINC VirtualBox wrapper
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// see: http://boinc.berkeley.edu/trac/wiki/VboxApps
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// Options:
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// --trickle X send a trickle message reporting elapsed time every X secs
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// (use this for credit granting if your app does its
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// own job management, like CernVM).
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//
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// Handles:
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// - suspend/resume/quit/abort
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// - reporting CPU time
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// - loss of heartbeat from core client
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// - checkpointing
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// (at the level of task; or potentially within task)
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//
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// Contributors:
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// Andrew J. Younge (ajy4490 AT umiacs DOT umd DOT edu)
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// Jie Wu <jiewu AT cern DOT ch>
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// Daniel Lombraña González <teleyinex AT gmail DOT com>
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// Rom Walton
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// David Anderson
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#ifdef _WIN32
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#include "boinc_win.h"
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#include "win_util.h"
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#else
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#include <sys/wait.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <stdio.h>
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#include <vector>
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#include <string>
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#include <unistd.h>
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#endif
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#include "boinc_api.h"
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#include "diagnostics.h"
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#include "filesys.h"
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#include "parse.h"
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#include "str_util.h"
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#include "str_replace.h"
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#include "util.h"
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#include "error_numbers.h"
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#include "procinfo.h"
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#include "vbox.h"
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#define IMAGE_FILENAME "vm_image.vdi"
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#define JOB_FILENAME "vbox_job.xml"
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#define CHECKPOINT_FILENAME "vbox_checkpoint.txt"
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#define POLL_PERIOD 1.0
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int parse_job_file(VBOX_VM& vm) {
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MIOFILE mf;
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char buf[256], buf2[256];
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boinc_resolve_filename(JOB_FILENAME, buf, 1024);
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FILE* f = boinc_fopen(buf, "r");
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if (!f) {
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fprintf(stderr,
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"%s can't open job file %s\n",
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boinc_msg_prefix(buf2, sizeof(buf2)), buf
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);
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return ERR_FOPEN;
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}
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mf.init_file(f);
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XML_PARSER xp(&mf);
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if (!xp.parse_start("vbox_job")) return ERR_XML_PARSE;
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while (!xp.get_tag()) {
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if (!xp.is_tag) {
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fprintf(stderr, "%s parse_job_file(): unexpected text %s\n",
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boinc_msg_prefix(buf, sizeof(buf)), xp.parsed_tag
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);
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continue;
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}
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if (xp.match_tag("/vbox_job")) {
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fclose(f);
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return 0;
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}
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else if (xp.parse_string("os_name", vm.os_name)) continue;
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else if (xp.parse_string("memory_size_mb", vm.memory_size_mb)) continue;
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else if (xp.parse_bool("enable_network", vm.enable_network)) continue;
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else if (xp.parse_bool("enable_shared_directory", vm.enable_shared_directory)) continue;
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fprintf(stderr, "%s parse_job_file(): unexpected tag %s\n",
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boinc_msg_prefix(buf, sizeof(buf)), xp.parsed_tag
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);
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}
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fclose(f);
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return ERR_XML_PARSE;
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}
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void write_checkpoint(double cpu) {
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boinc_begin_critical_section();
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FILE* f = fopen(CHECKPOINT_FILENAME, "w");
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if (!f) return;
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fprintf(f, "%f\n", cpu);
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fclose(f);
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boinc_checkpoint_completed();
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}
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void read_checkpoint(double& cpu) {
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double c;
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cpu = 0;
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FILE* f = fopen(CHECKPOINT_FILENAME, "r");
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if (!f) return;
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int n = fscanf(f, "%lf", &c);
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fclose(f);
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if (n != 1) return;
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cpu = c;
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}
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int main(int argc, char** argv) {
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BOINC_OPTIONS boinc_options;
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double current_cpu_time = 0.0;
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double checkpoint_cpu_time = 0.0;
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bool is_running = false;
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char buf[256];
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int retval;
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VBOX_VM vm;
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APP_INIT_DATA aid;
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double trickle_period = 0, trickle_cpu_time = 0;;
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memset(&boinc_options, 0, sizeof(boinc_options));
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boinc_options.main_program = true;
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boinc_options.check_heartbeat = true;
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boinc_options.handle_process_control = true;
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boinc_init_options(&boinc_options);
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for (int i=1; i<argc; i++) {
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if (!strcmp(argv[i], "--trickle")) {
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trickle_period = atof(argv[++i]);
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}
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}
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fprintf(
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stderr,
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"%s vboxwrapper: starting\n",
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boinc_msg_prefix(buf, sizeof(buf))
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);
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retval = parse_job_file(vm);
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if (retval) {
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fprintf(
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stderr,
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"%s can't parse job file: %d\n",
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boinc_msg_prefix(buf, sizeof(buf)),
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retval
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);
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boinc_finish(retval);
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}
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boinc_get_init_data_p(&aid);
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vm.vm_name = "boinc_";
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if (boinc_is_standalone()) {
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vm.vm_name += "standalone";
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vm.image_filename = IMAGE_FILENAME;
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} else {
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vm.vm_name += aid.result_name;
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sprintf(buf, "%s_%d", IMAGE_FILENAME, aid.slot);
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vm.image_filename = buf;
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boinc_rename(IMAGE_FILENAME, buf);
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}
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read_checkpoint(checkpoint_cpu_time);
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retval = vm.run();
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if (retval) {
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boinc_finish(retval);
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}
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// set CPU and network throttling if needed
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//
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double x = aid.global_prefs.cpu_usage_limit;
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if (x && x<100) {
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vm.set_cpu_usage_fraction(x/100.);
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}
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// vbox doesn't distinguish up and down bandwidth; use the min of the prefs
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//
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x = aid.global_prefs.max_bytes_sec_up;
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double y = aid.global_prefs.max_bytes_sec_down;
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if (y) {
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if (!x || y<x) {
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x = y;
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}
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}
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if (x) {
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vm.set_network_max_bytes_sec(x);
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}
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while (1) {
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vm.poll();
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is_running = vm.is_running();
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if (boinc_status.no_heartbeat || boinc_status.quit_request) {
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vm.stop();
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write_checkpoint(checkpoint_cpu_time);
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boinc_temporary_exit(0);
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}
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if (boinc_status.abort_request) {
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vm.cleanup();
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write_checkpoint(checkpoint_cpu_time);
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boinc_finish(EXIT_ABORTED_BY_CLIENT);
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}
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if (!is_running) {
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vm.cleanup();
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write_checkpoint(checkpoint_cpu_time);
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boinc_finish(0);
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}
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if (boinc_status.suspended) {
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if (!vm.suspended) {
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vm.pause();
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}
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} else {
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if (vm.suspended) {
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vm.resume();
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}
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current_cpu_time += POLL_PERIOD;
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boinc_report_app_status(current_cpu_time, checkpoint_cpu_time, 0.0);
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if (trickle_period) {
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trickle_cpu_time += POLL_PERIOD;
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if (trickle_cpu_time >= trickle_period) {
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sprintf(buf, "<cpu_time>%f</cpu_time>", trickle_cpu_time);
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boinc_send_trickle_up(const_cast<char*>("cpu_time"), buf);
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trickle_cpu_time = 0;
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}
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}
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}
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if (vm.enable_network) {
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if (boinc_status.network_suspended) {
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if (!vm.network_suspended) {
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vm.set_network_access(false);
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}
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} else {
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if (vm.network_suspended) {
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vm.set_network_access(true);
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}
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}
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}
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if (boinc_time_to_checkpoint()) {
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boinc_checkpoint_completed();
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checkpoint_cpu_time += current_cpu_time;
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current_cpu_time = 0.0;
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}
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boinc_sleep(POLL_PERIOD);
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}
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}
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#ifdef _WIN32
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int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, LPSTR Args, int WinMode) {
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LPSTR command_line;
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char* argv[100];
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int argc;
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command_line = GetCommandLine();
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argc = parse_command_line(command_line, argv);
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return main(argc, argv);
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}
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#endif
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