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vbox.h
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vbox.h
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// This file is part of BOINC.
// http://boinc.berkeley.edu
// Copyright (C) 2008 University of California
//
// BOINC 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 3 of the License, or (at your option) any later version.
//
// BOINC 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.
//
// You should have received a copy of the GNU Lesser General Public License
// along with BOINC. If not, see <http://www.gnu.org/licenses/>.
// wrapper.C
// wrapper program for CernVM - lets you use CernVM on BOINC
//
// Handles:
// - suspend/resume/quit/abort virtual machine
//
// Contributor: Jie Wu <jiewu AT cern DOT ch>
//
// Contributor: Daniel Lombraña González <teleyinex AT gmail DOT com>
#include <iostream>
#include <string>
#ifdef APP_GRAPHICS
#include "boincShare.h" // provided by CernVM-Graphics
Share::SharedData* Share::data;
#endif
#include "helper.h"
#include "floppyIO.h"
#define VM_NAME "VMName"
#define CPU_TIME "CpuTime"
#define TRICK_PERIOD 45.0*60
#define CHECK_PERIOD 2.0*60
#define POLL_PERIOD 1.0
#define MESSAGE "CPUTIME"
#define YEAR_SECS 365*24*60*60
#define BUFSIZE 4096
using std::string;
struct VM {
string virtual_machine_name;
string disk_name;
string disk_path;
string name_path;
// BOINC user name and password (in this case authenticator)
string boinc_userid;
string boinc_hostid;
string boinc_username;
string boinc_authenticator;
string boinc_user_total_credit;
string boinc_host_total_credit;
double current_period;
time_t last_poll_point;
bool suspended;
int poll_err_number;
int poweroff_err_number;
int start_err_number;
int debug_level;
int n_cpus;
VM();
void create();
bool exists();
void throttle();
void start(bool vrde, bool headless);
void pause();
void savestate();
void resume();
void remove();
void release();
void poll();
bool is_status(string status);
};
//void write_cputime(double);
APP_INIT_DATA aid;
// Run VBoxManage commands to interact with the virtual machine.
// When buffer is NULL, this function will not return the input of new process.
// Otherwise, it will not redirect the input of new process to buffer
bool vbm_popen(string arg_list, char * buffer=NULL, int nSize=1024,
string command="VBoxManage -q ") {
#ifdef _WIN32
STARTUPINFO si;
SECURITY_ATTRIBUTES sa;
SECURITY_DESCRIPTOR sd; //security information for pipes
PROCESS_INFORMATION pi;
HANDLE newstdout,read_stdout; //pipe handles
unsigned long exit=0;
if (buffer!=0) {
//initialize security descriptor (Windows NT)
if (Helper::IsWinNT()) {
InitializeSecurityDescriptor(&sd,SECURITY_DESCRIPTOR_REVISION);
SetSecurityDescriptorDacl(&sd, true, NULL, false);
sa.lpSecurityDescriptor = &sd;
}
else sa.lpSecurityDescriptor = NULL;
sa.nLength = sizeof(SECURITY_ATTRIBUTES);
sa.bInheritHandle = true; //allow inheritable handles
//create stdout pipe
if (!CreatePipe(&read_stdout,&newstdout,&sa,0)) {
cerr << "ERROR: CreatePipe failed!!" << endl;
CloseHandle(newstdout);
CloseHandle(read_stdout);
return false;
}
}
GetStartupInfo(&si);
si.dwFlags = STARTF_USESHOWWINDOW;
si.wShowWindow = SW_HIDE;
if (buffer != NULL) {
si.dwFlags = STARTF_USESTDHANDLES|si.dwFlags;
si.hStdOutput = newstdout;
si.hStdError = newstdout; //set the new handles for the child process
si.hStdInput = NULL;
}
command += arg_list;
if (!CreateProcess( NULL, (LPTSTR)command.c_str(), NULL, NULL, TRUE,
CREATE_NO_WINDOW, NULL, NULL, &si, &pi)) {
cerr << "ERROR: CreateProcess failed!" << endl;
if (buffer!=NULL) {
CloseHandle(newstdout);
CloseHandle(read_stdout);
}
return false;
}
// Wait until process exits.
WaitForSingleObject(pi.hProcess, INFINITE);
// Close process and thread handles.
CloseHandle(pi.hThread);
CloseHandle(pi.hProcess);
if (buffer!=NULL) {
memset(buffer, 0, nSize);
DWORD bread;
BOOL bSuccess = false;
for (;;)
{
ReadFile(read_stdout, buffer, nSize-1, &bread, NULL);
if (!bSuccess || bread == 0) break;
}
// buffer[bread]=0;
CloseHandle(newstdout);
CloseHandle(read_stdout);
}
if (exit == 0)
return true;
else
return false;
// GNU/Linux and Mac OS X code
#else
FILE *fp;
char temp[256];
string strTemp = "";
command += arg_list;
if (buffer == NULL) {
if(!system(command.c_str()))
return true;
else return false;
}
fp = popen(command.c_str(), "r");
if (fp == NULL) {
cerr << "ERROR: vbm_popen failed" << endl;
return false;
}
memset(buffer, 0, nSize);
while (fgets(temp,256,fp) != NULL) {
strTemp += temp;
}
pclose(fp);
strncpy(buffer, strTemp.c_str(), nSize-1);
return true;
#endif
}
VM::VM() {
char buffer[256];
virtual_machine_name = "";
current_period = 0;
suspended = false;
last_poll_point = 0;
poll_err_number = 0;
poweroff_err_number = 0;
start_err_number = 0;
debug_level = 3;
n_cpus = 1;
boinc_getcwd(buffer);
disk_name = "cernvm.vmdk";
disk_path = "cernvm.vmdk";
disk_path = "/"+disk_path;
disk_path = buffer+disk_path;
disk_path = "\""+disk_path+"\"";
name_path = "";
name_path += VM_NAME;
}
void VM::create()
{
time_t rawtime;
string arg_list;
//createvm
arg_list = "createvm --name " + virtual_machine_name + " --ostype Linux26 --register";
if (!vbm_popen(arg_list)) {
cerr << "ERROR: Create VM method -> createvm failed! Aborting" << endl;
cerr << "ERROR: " << arg_list << endl;
if (debug_level >= 3) {
cerr << "NOTICE: Removing registered VM because to clean the system" << endl;
}
remove();
boinc_finish(1);
}
//modifyvm
arg_list.clear();
std::stringstream tmp;
tmp << n_cpus;
arg_list = "modifyvm " + virtual_machine_name + \
" --cpus " + tmp.str() + " --memory 256 --acpi on --ioapic on \
--boot1 disk --boot2 none --boot3 none --boot4 none \
--nic1 nat \
--natdnsproxy1 on";
vbm_popen(arg_list);
// Enable port-forwarding for t4t-webapp
if (debug_level >= 4) {
cerr << "INFO: Enabling Port Forwarding in the Virtual Machine" << endl;
}
arg_list.clear();
arg_list = " modifyvm " + virtual_machine_name + \
" --natpf1 \"graphicsvm,tcp,127.0.0.1,7859,,80\"";
vbm_popen(arg_list);
// Create the controller for the virtual hard disk
arg_list.clear();
arg_list = "storagectl " + virtual_machine_name + \
" --name \"IDE Controller\" --add ide --controller PIIX4";
vbm_popen(arg_list);
// Attach Virtual hard disk to the VM and create a new random UUID every time a VM is created.
arg_list.clear();
arg_list = "storageattach " + virtual_machine_name + \
" --storagectl \"IDE Controller\" \
--port 0 --device 0 --type hdd --medium " \
+ disk_path + " --setuuid \"\" ";
if (!vbm_popen(arg_list)) {
cerr << "ERROR: Create storageattach failed! Aborting" << endl;
cerr << "ERROR: " << arg_list << endl;
remove();
boinc_finish(1);
}
// Create the controller for the virtual floppy image
unsigned long int slug = time(NULL);
string floppy_name;
std::stringstream out;
out << "floppy_" << slug << ".img";
floppy_name = out.str();
// Save the name of the floppy
ofstream myfile;
myfile.open("FloppyName.txt");
myfile << floppy_name << endl;
myfile.close();
// Create the Floppy image
FloppyIO floppy(floppy_name.c_str());
arg_list.clear();
arg_list = "storagectl " + virtual_machine_name + \
" --name \"Floppy Controller\" --add floppy";
vbm_popen(arg_list);
// Attach the virtual foppy image
arg_list.clear();
arg_list = "storageattach " + virtual_machine_name + \
" --storagectl \"Floppy Controller\" \
--port 0 --device 0 --medium " + floppy_name.c_str();
if (!vbm_popen(arg_list)) {
cerr << "ERROR: Adding the Floppy image failed! Aborting" << endl;
cerr << "ERROR: " << arg_list << endl;
remove();
boinc_finish(1);
}
floppy.send("BOINC_USERNAME=" + boinc_username +
"\nBOINC_USER_TOTAL_CREDIT=" + boinc_user_total_credit +
"\nBOINC_USERID=" + boinc_userid +
"\nBOINC_HOSTID=" + boinc_hostid +
"\nBOINC_HOST_TOTAL_CREDIT=" + boinc_host_total_credit +
"\nBOINC_AUTHENTICATOR=" + boinc_authenticator);
// Create VM
std::ofstream f(name_path.c_str());
if (f.is_open()) {
if (f.good()) {
f << virtual_machine_name;
}
f.close();
}
else {
cerr << "ERROR: Saving VM name failed! Details -> ofstream failed! Aborting" << endl;
boinc_finish(1);
}
}
bool VM::exists()
{
std::ifstream f("VMName");
if (f.is_open()) {
f.close();
return true;
}
else {
return false;
}
}
void VM::throttle()
{
// Check the BOINC CPU preferences for running the VM accordingly
string arg_list;
boinc_get_init_data(aid);
cerr << "INFO: Number of cores: " << n_cpus << endl;
if (aid.project_preferences) {
if (!aid.project_preferences) return;
double max_vm_cpu_pct = 100.0;
if (parse_double(aid.project_preferences, "<max_vm_cpu_pct>",
max_vm_cpu_pct)) {
if (debug_level >= 3) {
cerr << "NOTICE: Maximum usage of CPU: " << max_vm_cpu_pct << endl;
cerr << "NOTICE: Setting how much CPU time the virtual CPU can use: " << max_vm_cpu_pct << endl;
}
std::stringstream out;
out << int(max_vm_cpu_pct);
arg_list = " controlvm " + virtual_machine_name + " cpuexecutioncap " + out.str();
if (!vbm_popen(arg_list)) {
cerr << "ERROR: Impossible to set up CPU percentage usage limit" << endl;
}
else {
if (debug_level >= 3) {
cerr << "NOTICE: Success!" << endl;
}
}
}
}
}
bool VM::is_status(string status)
{
boinc_begin_critical_section();
char buffer[1024];
int poll_err_number = 0;
string arg_list = "showvminfo " + virtual_machine_name + " --machinereadable";
if (!vbm_popen(arg_list, buffer, sizeof(buffer))) {
// Increase the number of errors
double wait_time = 5.0;
poll_err_number += 1;
cerr << "ERROR: Checking if VM is " + status + " failed " << poll_err_number << " times!" << endl;
if (debug_level >= 3) {
cerr << "WARNING: Sleeping " + status + " check for " << wait_time << " seconds" << endl;
}
boinc_sleep(wait_time);
if (debug_level >= 3) {
cerr << "INFO: Resumming " + status + " check" << endl;
}
if (poll_err_number > 10) {
cerr << "ERROR: Get " + status + " check from the VM has failed " << poll_err_number << " times!" << endl;
cerr << "ERROR: Aborting the execution" << endl;
remove();
boinc_end_critical_section();
boinc_finish(1);
return false;
}
}
else {
string output;
output = buffer;
if (output.find("VMState=\"" + status + "\"") != string::npos) {
return true;
boinc_end_critical_section();
}
else {
return false;
boinc_end_critical_section();
}
}
}
void VM::start(bool vrde=false, bool headless=false)
{
// Start the VM in headless mode
boinc_begin_critical_section();
string arg_list="";
char buffer[1024];
if (headless) arg_list = " startvm " + virtual_machine_name + " --type headless";
else arg_list = " startvm " + virtual_machine_name;
if (!vbm_popen(arg_list, buffer, sizeof(buffer))) {
start_err_number += 1;
cerr << "ERROR: Impossible to start the VM, seems to be locked " << start_err_number << " time" << endl;
if (debug_level >= 3 ) {
cerr << "NOTICE: Waiting 2 seconds to unlock the VM" << endl;
}
boinc_sleep(2);
if (start_err_number > 4) {
cerr << "ERROR: Impossible to start the VM after " << start_err_number << " times" << endl;
cerr << "ERROR: Removing the VM" << endl;
remove();
boinc_end_critical_section();
boinc_finish(1);
}
}
else {
// Check if two or more cores can be used as Virtualization Extensions are required
if (n_cpus > 1) {
#ifdef _WIN32
if (debug_level >= 3) {
cerr << "NOTICE: I'm running in a Windows system..." << endl;
}
string vmlog = getenv("HOMEDRIVE");
vmlog += getenv("HOMEPATH");
vmlog += "\\VirtualBox VMs\\" + virtual_machine_name + "\\Logs\\VBox.log";
#else
// *nix systems
string env = getenv("HOME");
string vmlog = env + "/VirtualBox VMs/" + virtual_machine_name + "/Logs/VBox.log";
if (debug_level >= 3) {
cerr << "NOTICE: I'm running in a *nix system..." << endl;
}
#endif
// Give time to VBoxManage to report if Virtualization Extensions are enabled
boinc_sleep(2);
// Read the error file
std::ifstream errors(vmlog.c_str());
if (errors.is_open()) {
string line;
cerr << "INFO: Checking if it is possible to use two or more cores in the VM..." << endl;
while (!errors.eof()) {
std::getline(errors,line);
if ((line.find("VERR_VMX_MSR_LOCKED_OR_DISABLED") != string::npos) || (line.find("VERR_SVM_DISABLED") != string::npos) ||
(line.find("VERR_VMX_NO_VMX") != string::npos)) {
cerr << "ERROR: Virtualization extensions are not supported, so multi-core extension has to be disabled!" << endl;
// Disabling the number of cores
string tmp;
boinc_sleep(5);
tmp = "modifyvm " + virtual_machine_name + " --cpus 1";
if (!vbm_popen(tmp)) {
cerr << "ERROR: Disabling multi-core feature failed!" << endl;
cerr << "ERROR: Aborting work unit" << endl;
boinc_finish(1);
}
else {
n_cpus = 1;
cerr << "INFO: Disabling multi-core feature worked! Re-starting VM..." << endl;
vbm_popen(arg_list);
}
break;
}
}
cerr << "INFO: Finished the scan Virtualization Extensions" << endl;
errors.close();
}
else {
cerr << "ERROR: Impossible to read the VBox.log file!" << endl;
}
}
// Resetting the error counter
start_err_number = 0;
if (debug_level >=3) cerr << "NOTICE: VM has been started!" << endl;
// Enable or disable VRDP for the VM: (by default is disabled)
if (vrde) {
arg_list.clear();
arg_list = " controlvm " + virtual_machine_name + " vrde on";
}
else {
arg_list.clear();
arg_list = " controlvm " + virtual_machine_name + " vrde off";
}
vbm_popen(arg_list);
// If not running in Headless mode, don't allow the user to save, shutdown, power off or restore the VM
if (!headless) {
arg_list.clear();
// Don't allow the user to save, shutdown, power off or restore the VM
arg_list = " setextradata " + virtual_machine_name + " GUI/RestrictedCloseActions SaveState,Shutdown,PowerOff,Restore";
vbm_popen(arg_list);
}
throttle();
}
boinc_end_critical_section();
}
void VM::pause()
{
boinc_begin_critical_section();
string pause_cmd = "controlvm " + virtual_machine_name + " pause";
int i = 0;
bool failed = true;
// Try to Pause the VM for 10 times
for (i;i<=9;i++) {
vbm_popen(pause_cmd);
if (is_status("paused")) {
cerr << "INFO: VM paused!" << endl;
suspended = true;
time_t current_time = time(NULL);
current_period += difftime (current_time, last_poll_point);
failed = false;
break;
}
else {
cerr << "WARNING: The VM has not been paused yet. Retrying..." << endl;
boinc_sleep(2);
}
}
if (failed) {
cerr << "WARNING: The VM has not been paused after 10 times!" << endl;
cerr << "WARNING: BOINC_TEMPORARY_EXIT issued!" << endl;
boinc_temporary_exit(0);
}
boinc_end_critical_section();
}
void VM::resume()
{
boinc_begin_critical_section();
if (is_status("paused")) {
string arg_list("controlvm " + virtual_machine_name + " resume");
int i = 0;
bool failed = true;
// Try to resume the VM 10 times
for (i;i<=9;i++) {
vbm_popen(arg_list);
if (is_status("running")) {
cerr << "INFO: VM resumed!" << endl;
suspended = false;
last_poll_point = time(NULL);
failed = false;
boinc_end_critical_section();
break;
}
else {
cerr << "WARNING: VM has not been resumed yet. Retrying..." << endl;
boinc_sleep(2);
}
}
if (failed) {
cerr << "WARNING: The VM has not been resumed after 10 tries!" << endl;
cerr << "WARNING: BOINC_TEMPORARY_EXIT issued!" << endl;
cerr << "WARNING: Trying again in 5 minutes!" << endl;
boinc_end_critical_section();
boinc_temporary_exit(300);
}
}
else {
cerr << "INFO: VM is not paused, so it is impossible to resume it!" << endl;
cerr << "INFO: Checking if the VM is saved, so we can start it again..." << endl;
if (is_status("saved")) {
cerr << "INFO: VM is saved, while it should be suspend!" << endl;
cerr << "INFO: Restarting VM in any case..." << endl;
boinc_temporary_exit(30);
}
else {
cerr << "INFO: VM is not saved or paused, so something went wrong..." << endl;
cerr << "INFO: Retrying in 5 minutes to check everything again!" << endl;
boinc_temporary_exit(300);
}
boinc_end_critical_section();
}
}
void VM::savestate()
{
boinc_begin_critical_section();
string savestate_cmd = "controlvm " + virtual_machine_name + " savestate";
int i = 0;
bool failed = true;
// First try to save the state of the VM (sometimes may fail because the VM is locked)
for (i;i<=9;i++) {
vbm_popen(savestate_cmd);
if (is_status("saved")) {
cerr << "INFO: VM state saved!" << endl;
failed = false;
break;
}
else {
cerr << "WARNING: The VM has not been saved yet. Retrying..." << endl;
}
}
if (failed) {
cerr << "WARNING: The VM has not been saved after 10 tries!" << endl;
cerr << "WARNING: BOINC_TEMPORARY_EXIT!" << endl;
boinc_temporary_exit(0);
}
boinc_end_critical_section();
}
void VM::remove()
{
boinc_begin_critical_section();
string arg_list, vminfo, vboxfolder, vboxXML, vboxXMLNew, vmfolder, vmdisk;
char *env;
bool vmRegistered = false;
arg_list = " discardstate " + virtual_machine_name;
if (vbm_popen(arg_list)) {
if (debug_level >= 3) {
cerr << "NOTICE: VM state discarded!" << endl;
}
}
else {
if (debug_level >= 2) {
cerr << "WARNING: it was not possible to discard the state of the VM" << endl;
}
}
// Wait to allow to discard the VM state cleanly
boinc_sleep(2);
// Unregistervm command with --delete option. VBox 4.1 should work well
arg_list.clear();
arg_list = " unregistervm " + virtual_machine_name + " --delete";
if (vbm_popen(arg_list)) {
if (debug_level >= 3) {
cerr << "NOTICE: VM removed via VBoxManage" << endl;
}
}
else {
if (debug_level >= 2) {
cerr << "WARNING: The VM could not be removed via VBoxManage" << endl;
}
}
// We test if we can remove the hard disk controller. If the command works, the cernvm.vmdk virtual disk will be also
// removed automatically
arg_list.clear();
arg_list = " storagectl " + virtual_machine_name + " --name \"IDE Controller\" --remove";
if (vbm_popen(arg_list)) {
if (debug_level >= 3) {
cerr << "NOTICE: Hard disk removed!" << endl;
}
}
else {
if (debug_level >= 2) {
cerr << "WARNING: it was not possible to remove the IDE controller" << endl;
}
}
#ifdef _WIN32
env = getenv("HOMEDRIVE");
if (debug_level >= 3) {
cerr << "NOTICE: I'm running in a Windows system..." << endl;
}
vboxXML = string(env);
env = getenv("HOMEPATH");
vboxXML = vboxXML + string(env);
vboxfolder = vboxXML + "\\VirtualBox VMs\\";
vboxXML = vboxXML + "\\.VirtualBox\\VirtualBox.xml";
#else
env = getenv("HOME");
vboxXML = string(env);
if (vboxXML.find("Users") == string::npos) {
// GNU/Linux
vboxXML = vboxXML + "/.VirtualBox/VirtualBox.xml";
vboxfolder = string(env) + "/.VirtualBox/";
if (debug_level >= 3) {
cerr << "NOTICE: I'm running in a GNU/Linux system..." << endl;
}
}
else {
// Mac OS X
vboxXML = vboxXML + "/Library/VirtualBox/VirtualBox.xml";
vboxfolder = string(env) + "/Library/VirtualBox/";
if (debug_level >= 3) {
cerr << "NOTICE: I'm running in a Mac OS X system..." << endl;
}
}
#endif
std::ifstream in(vboxXML.c_str());
if (in.is_open()) {
vboxXMLNew = vboxfolder + "VirtualBox.xmlNew";
std::ofstream out(vboxXMLNew.c_str());
int line_n = 0;
size_t found_init, found_end;
string line;
while (std::getline(in,line)) {
found_init = line.find("BOINC_VM");
if (found_init == string::npos)
out << line + "\n";
else {
vmRegistered = true;
if (debug_level >= 3) {
cerr << "NOTICE: Obtaining the VM folder..." << endl;
}
found_init = line.find("src=");
found_end = line.find(virtual_machine_name + ".vbox");
if (found_end != string::npos)
if (debug_level >= 3) {
cerr << "NOTICE: .vbox found at line: " << line_n << " in the VirtualBox.xml file" << endl;
}
vmfolder = line.substr(found_init + 5, found_end - (found_init+5));
if (debug_level >= 3) {
cerr << "NOTICE: Done!" << endl;
}
}
line_n +=1;
}
in.close();
out.close();
}
// When the project is reset, we have to first unregister the VM, else we will have an error.
arg_list = "unregistervm " + virtual_machine_name;
if (!vbm_popen(arg_list)) {
if (debug_level >= 3) {
cerr << "NOTICE: CernVM does not exist, so it is not necessary to unregister it" << endl;
}
}
else {
if (debug_level >= 3) {
cerr << "NOTICE: Successfully unregistered the CernVM" << endl;
}
}
// Create a backup of old VirtualBox.xml and replace it with the new one
cerr << "==========================================================" << endl;
cerr << "INFO: Backing up previous VirtualBox.xml configuration ..." << endl;
string backup = vboxXML + ".bak";
std::ifstream f(backup.c_str());
if (f.is_open()) {
cerr << "WARNING: VirtualBox.xml.bak already exists, skipping this step" << endl;
f.close();
}
else {
std::rename(vboxXML.c_str(), backup.c_str());
cerr << "Backup Done! VirtualBox.xml.bak created with previous set up" << endl;
}
cerr << "==========================================================" << endl;
// Delete old VirtualBox.xml as a backup has been created
std::remove(vboxXML.c_str());
// Rename the clean and new VirtualBox.xml configuration
std::rename(vboxXMLNew.c_str(),vboxXML.c_str());
// Remove remaining BOINC_VM folder
#ifdef _WIN32
if (vmRegistered) {
vmfolder = "RMDIR \"" + vmfolder + "\" /s /q";
if (system(vmfolder.c_str()) == 0) {
if (debug_level >= 3) {
cerr << "NOTICE: VM folder deleted!" << endl;
}
}
else {
if (debug_level >= 3) {
cerr << "NOTICE: System was clean, nothing to delete" << endl;
}
}
}
else {
if (debug_level >= 3) {
cerr << "NOTICE: VM was not registered, deleting old VM folders..." << endl;
}
vmfolder = "RMDIR \"" + vboxfolder + virtual_machine_name + "\" /s /q";
if (system(vmfolder.c_str()) == 0) {
if (debug_level >= 3) {
cerr << "NOTICE: VM folder deleted!" << endl;
}
}
else {
if (debug_level >= 3) {
cerr << "NOTICE: System was clean, nothing to delete" << endl;
}
}
}
#else // GNU/Linux and Mac OS X
// First delete the VM folder obtained in VirtualBox.xml
if (vmRegistered) {
vmfolder = "rm -rf \"" + vmfolder + "\"";
if (system(vmfolder.c_str()) == 0) {
if (debug_level >= 3) {
cerr << "NOTICE: VM folder deleted!" << endl;
}
}
else {
if (debug_level >= 3) {
cerr << "NOTICE: System was clean, nothing to delete" << endl;
}
}
}
else {
if (debug_level >= 3) {
cerr << "NOTICE: VM was not registered, deleting old VM folders..." << endl;
}
vmfolder = "rm -rf \"" + string(env) + "/VirtualBox VMs/" + virtual_machine_name + "\" ";
if ( system(vmfolder.c_str()) == 0 ) {
if (debug_level >= 3) {
cerr << "NOTICE: VM folder deleted!" << endl;
}
}
else {
if (debug_level >= 3) {
cerr << "NOTICE: System was clean, nothing to delete" << endl;
}
}
}
#endif
boinc_end_critical_section();
}
void VM::release()
{
boinc_begin_critical_section();
string arg_list("closemedium disk " + disk_path);
if(!vbm_popen(arg_list)) {
cerr << "ERROR: It was impossible to release the virtual hard disk" << endl;
}
else {
if (debug_level >= 3) {
cerr << "NOTICE: Virtual hard disk unregistered" << endl;
}
}
boinc_end_critical_section();
}
void VM::poll()
{
boinc_begin_critical_section();
string arg_list, status;
char buffer[1024];
time_t current_time;
arg_list = "showvminfo " + virtual_machine_name + " --machinereadable";
if (!vbm_popen(arg_list, buffer, sizeof(buffer))) {
// Increase the number of errors
double wait_time = 5.0;
poll_err_number += 1;
cerr << "ERROR: Get status from VM failed " << poll_err_number << " times!" << endl;
if (debug_level >= 3) {
cerr << "WARNING: Sleeping poll for " << wait_time << " seconds" << endl;
}
boinc_sleep(wait_time);
if (debug_level >= 3) {
cerr << "INFO: Resumming poll" << endl;
}
if (poll_err_number > 4) {
cerr << "ERROR: Get status from the VM has failed " << poll_err_number << " times!" << endl;
cerr << "ERROR: Aborting the execution" << endl;
remove();
boinc_end_critical_section();
boinc_finish(1);
}
}
else {
// Each time we read the status we reset the counter of errors
poll_err_number = 0;
status = buffer;
if (status.find("VMState=\"running\"") != string::npos) {
if (suspended) {
suspended = false;
last_poll_point = time(NULL);
}
else {
current_time = time(NULL);
current_period += difftime (current_time,last_poll_point);
last_poll_point = current_time;
if (debug_level >= 4) {
cerr << "INFO: VM poll is running" << endl;
}
}
boinc_end_critical_section();
// Reset poweroff error counter, as the VM is running:
if ((debug_level >= 3) && (poweroff_err_number > 0)) {
cerr << "NOTICE: Resetting poweroff counter!" << endl;
cerr << "NOTICE: Virtual Machine up and running again" << endl;
}
poweroff_err_number = 0;
return;
}
if (status.find("VMState=\"paused\"") != string::npos) {
if (!suspended) {
suspended = true;
time_t current_time = time(NULL);
current_period += difftime (current_time, last_poll_point);
}
if (debug_level >= 3) {
cerr << "NOTICE: VM is paused!" << endl;
}
boinc_end_critical_section();
return;
}
if (status.find("VMState=\"poweroff\"") != string::npos) {
poweroff_err_number += 1;
if (debug_level >= 3) {
cerr << "WARNING: VM is powered off and it shouldn't (" << poweroff_err_number << " times!)" << endl;
cerr << "WARNING: Retrying in 2 seconds" << endl;
}
boinc_sleep(2);
boinc_end_critical_section();
if (poweroff_err_number > 4) {
cerr << "ERROR: VM has been powered off for the last " << poweroff_err_number << " poll calls!" << endl;
cerr << "ERROR: Cancelling Work Unit!" << endl;
boinc_finish(1);
}
}
}
}
void poll_boinc_messages(VM& vm, BOINC_STATUS &status)
{
if (status.reread_init_data_file) {
if (vm.debug_level >= 3) {
cerr << "NOTICE: Project preferences have changed" << endl;
}
// Revert back the status to false
status.reread_init_data_file = false;
vm.throttle();
}
if (status.no_heartbeat) {
if (vm.debug_level >= 3) {
cerr << "NOTICE: BOINC no_heartbeat" << endl;
}
vm.savestate();
boinc_temporary_exit(0);
}
if (status.quit_request) {
if (vm.debug_level >= 3) {
cerr << "NOTICE: Suspending the VM" << endl;
}
vm.savestate();