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boinc/client/main.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
// command-line version of the BOINC core client
// This file contains no GUI-related code,
// and is not included in the source code for Mac or Win GUI clients
#ifdef WIN32
#define _CONSOLE 1
#include "boinc_win.h"
#include "win_service.h"
#include "win_util.h"
extern HINSTANCE g_hClientLibraryDll;
static HANDLE g_hWin9xMonitorSystemThread = NULL;
static DWORD g_Win9xMonitorSystemThreadID = NULL;
static BOOL g_bIsWin9x = FALSE;
typedef BOOL (*pfnIsWindows2000Compatible)();
typedef BOOL (CALLBACK* ClientLibraryStartup)();
typedef void (CALLBACK* ClientLibraryShutdown)();
#ifndef _T
#define _T(X) X
#endif
#else
#include "config.h"
#ifdef HAVE_SYS_SOCKET_H
#include <sys/types.h>
#include <sys/socket.h>
#endif
#include <syslog.h>
#include <unistd.h>
#include <csignal>
#endif
#ifdef __APPLE__
#include <sys/stat.h> // for umask()
#endif
#ifdef __EMX__
#define INCL_DOS
#include <os2.h>
#endif
#include "diagnostics.h"
#include "error_numbers.h"
#include "util.h"
#include "prefs.h"
#include "filesys.h"
#include "network.h"
#include "client_state.h"
#include "file_names.h"
#include "log_flags.h"
#include "client_msgs.h"
#include "main.h"
extern int curl_init(void);
extern int curl_cleanup(void);
static bool boinc_cleanup_completed = false;
// Used on Windows 95/98/ME to determine when it is safe to leave
// the WM_ENDSESSION message handler and allow Windows to finish
// cleaning up.
// Display a message to the user.
// Depending on the priority, the message may be more or less obtrusive
//
void show_message(PROJECT *p, char* msg, int priority) {
const char* x;
char message[1024];
time_t now = time(0);
char* time_string = time_to_string((double)now);
#if defined(WIN32) && defined(_CONSOLE)
char event_message[2048];
#endif
// Cycle the log files if we need to
diagnostics_cycle_logs();
strcpy(message, msg);
while (strlen(message)&&message[strlen(message)-1] == '\n') {
message[strlen(message)-1] = 0;
}
if (p) {
x = p->get_project_name();
} else {
x = "---";
}
record_message(p, priority, (int)now, message);
switch (priority) {
case MSG_ERROR:
case MSG_ALERT_ERROR:
fprintf(stderr, "%s [%s] %s\n", time_string, x, message);
printf("%s [%s] %s\n", time_string, x, message);
if (gstate.executing_as_daemon) {
#if defined(WIN32) && defined(_CONSOLE)
stprintf(event_message, TEXT("%s [%s] %s\n"), time_string, x, message);
::OutputDebugString(event_message);
// TODO: Refactor messages so that we do not overload the event log
// RTW 08/24/2004
//LogEventErrorMessage(event_message);
#endif
}
break;
case MSG_INFO:
case MSG_ALERT_INFO:
printf("%s [%s] %s\n", time_string, x, message);
if (gstate.executing_as_daemon) {
#if defined(WIN32) && defined(_CONSOLE)
stprintf(event_message, TEXT("%s [%s] %s\n"), time_string, x, message);
::OutputDebugString(event_message);
// TODO: Refactor messages so that we do not overload the event log
// RTW 08/24/2004
//LogEventInfoMessage(event_message);
#endif
}
break;
}
}
#ifdef WIN32
void quit_client() {
gstate.requested_exit = true;
}
void suspend_client() {
gstate.suspend_tasks(SUSPEND_REASON_USER_REQ);
gstate.suspend_network(SUSPEND_REASON_USER_REQ);
}
void resume_client() {
gstate.resume_tasks();
gstate.resume_network();
}
// Trap logoff and shutdown events on Win9x so we can clean ourselves up.
LRESULT CALLBACK Win9xMonitorSystemWndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
if (uMsg == WM_QUERYENDSESSION)
{
BOINCTRACE("***** Win9x Monitor System Shutdown/Logoff Event Detected *****\n");
quit_client();
while (!boinc_cleanup_completed) {
Sleep(1000); // Win95 is stupid, we really only need to wait until we have
// successfully shutdown the active tasks and cleaned everything
// up. Luckly WM_QUERYENDSESSION is sent before Win9x checks for any
// existing console and that gives us a chance to clean-up and
// then clear the console window. Win9x will not close down
// a console window if anything is displayed on it.
}
Sleep(2000); // For good measure.
system("cls");
return TRUE;
}
return (DefWindowProc(hWnd, uMsg, wParam, lParam));
}
DWORD WINAPI Win9xMonitorSystemThread( LPVOID lpParam ) {
HWND hwndMain;
WNDCLASS wc;
MSG msg;
wc.style = CS_GLOBALCLASS;
wc.lpfnWndProc = (WNDPROC)Win9xMonitorSystemWndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = NULL;
wc.hIcon = NULL;
wc.hCursor = NULL;
wc.hbrBackground = NULL;
wc.lpszMenuName = NULL;
wc.lpszClassName = "BOINCWin9xMonitorSystem";
if (!RegisterClass(&wc))
{
fprintf(stderr, "Failed to register the Win9xMonitorSystem window class.\n");
return 1;
}
/* Create an invisible window */
hwndMain = CreateWindow(
wc.lpszClassName,
"BOINC Monitor System",
WS_OVERLAPPEDWINDOW & ~WS_VISIBLE,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
NULL,
NULL,
NULL,
NULL);
if (!hwndMain)
{
fprintf(stderr, "Failed to create the Win9xMonitorSystem window.\n");
return 0;
}
while (GetMessage(&msg, NULL, 0, 0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return 0;
}
BOOL WINAPI ConsoleControlHandler ( DWORD dwCtrlType ){
BOOL bReturnStatus = FALSE;
BOINCTRACE("***** Console Event Detected *****\n");
switch( dwCtrlType ){
case CTRL_C_EVENT:
BOINCTRACE("Event: CTRL-C Event\n");
if(gstate.tasks_suspended) {
resume_client();
} else {
suspend_client();
}
bReturnStatus = TRUE;
break;
case CTRL_BREAK_EVENT:
BOINCTRACE("Event: CTRL-BREAK Event\n");
quit_client();
bReturnStatus = TRUE;
break;
case CTRL_CLOSE_EVENT:
BOINCTRACE("Event: CTRL-CLOSE Event\n");
quit_client();
break;
case CTRL_SHUTDOWN_EVENT:
BOINCTRACE("Event: CTRL-SHUTDOWN Event\n");
quit_client();
break;
case CTRL_LOGOFF_EVENT:
BOINCTRACE("Event: CTRL-LOGOFF Event\n");
if (!gstate.executing_as_daemon) {
quit_client();
}
bReturnStatus = TRUE;
break;
}
return bReturnStatus;
}
#else
static void signal_handler(int signum) {
msg_printf(NULL, MSG_INFO, "Received signal %d", signum);
switch(signum) {
case SIGHUP:
case SIGINT:
case SIGQUIT:
case SIGTERM:
gstate.requested_exit = true;
#ifdef __EMX__
// close socket
shutdown(gstate.gui_rpcs.lsock, 2);
#endif
break;
case SIGTSTP:
gstate.user_run_request = USER_RUN_REQUEST_NEVER;
break;
case SIGCONT:
gstate.user_run_request = USER_RUN_REQUEST_AUTO;
break;
default:
msg_printf(NULL, MSG_ERROR, "Signal not handled");
}
}
#endif
static FILE_LOCK file_lock;
int check_unique_instance() {
#ifdef _WIN32
// on Windows, we set a mutex so that only one copy
// of the core client can run at a time
//
BOOL bIsWin2k = FALSE;
g_hClientLibraryDll = LoadLibrary("boinc.dll");
char buf[MAX_PATH] = "";
if (g_hClientLibraryDll) {
pfnIsWindows2000Compatible fn;
fn = (pfnIsWindows2000Compatible)GetProcAddress(g_hClientLibraryDll, _T("IsWindows2000Compatible"));
if (fn) {
bIsWin2k = fn();
}
FreeLibrary(g_hClientLibraryDll);
g_hClientLibraryDll = NULL;
}
// Global mutex on Win2k and later
//
if (bIsWin2k) {
strcpy(buf, "Global\\");
}
strcat( buf, RUN_MUTEX);
HANDLE h = CreateMutex(NULL, true, buf);
if ((h==0) || (GetLastError() == ERROR_ALREADY_EXISTS)) {
return ERR_ALREADY_RUNNING;
}
#else
if (file_lock.lock(LOCK_FILE_NAME)) {
return ERR_ALREADY_RUNNING;
}
#endif
return 0;
}
static void init_core_client(int argc, char** argv) {
int retval;
setbuf(stdout, 0);
setbuf(stderr, 0);
#ifdef _WIN32
TCHAR szPath[MAX_PATH-1];
// change the current directory to the boinc install directory
GetModuleFileName(NULL, szPath, (sizeof(szPath)/sizeof(TCHAR)));
TCHAR *pszProg = strrchr(szPath, '\\');
if (pszProg) {
szPath[pszProg - szPath + 1] = 0;
SetCurrentDirectory(szPath);
}
#endif
#ifdef __APPLE__
// We have postponed implementing the umask change due to security concerns.
// umask(0); // Set file creation mask to make all files world-writable
// Our umask will be inherited by all our child processes
#endif
read_log_flags();
gstate.parse_cmdline(argc, argv);
// Initialize the BOINC Diagnostics Framework
int dwDiagnosticsFlags =
BOINC_DIAG_DUMPCALLSTACKENABLED |
BOINC_DIAG_HEAPCHECKENABLED |
BOINC_DIAG_HEAPCHECKEVERYALLOC |
BOINC_DIAG_TRACETOSTDOUT;
if (gstate.redirect_io || gstate.executing_as_daemon || gstate.detach_console) {
dwDiagnosticsFlags |=
BOINC_DIAG_REDIRECTSTDERR |
BOINC_DIAG_REDIRECTSTDOUT;
}
diagnostics_init(
dwDiagnosticsFlags,
"stdoutdae",
"stderrdae"
);
retval = check_unique_instance();
if (retval) {
msg_printf(NULL, MSG_INFO, "Another instance of BOINC is running");
exit(1);
}
// Win32 - detach from console if requested
#ifdef _WIN32
if (gstate.detach_console) {
FreeConsole();
}
#endif
// Unix: install signal handlers
#ifndef _WIN32
// Handle quit signals gracefully
boinc_set_signal_handler(SIGHUP, signal_handler);
boinc_set_signal_handler(SIGINT, signal_handler);
boinc_set_signal_handler(SIGQUIT, signal_handler);
boinc_set_signal_handler(SIGTERM, signal_handler);
#ifdef SIGPWR
boinc_set_signal_handler(SIGPWR, signal_handler);
#endif
#endif
// Windows: install console controls
#ifdef _WIN32
if (!SetConsoleCtrlHandler((PHANDLER_ROUTINE)ConsoleControlHandler, TRUE)){
fprintf(stderr, "Failed to register the console control handler\n");
exit(1);
} else {
printf(
"\nTo pause/resume tasks hit CTRL-C, to exit hit CTRL-BREAK\n"
);
}
#endif
}
int boinc_main_loop() {
int retval;
retval = gstate.init();
if (retval) {
fprintf(stderr, "gstate.init() failed: %d\n", retval);
exit(retval);
}
// must parse env vars after gstate.init();
// otherwise items will get overwritten with state file info
//
gstate.parse_env_vars();
if (gstate.projects.size() == 0) {
msg_printf(NULL, MSG_INFO,
"This computer is not attached to any projects"
);
msg_printf(NULL, MSG_INFO,
"Visit http://boinc.berkeley.edu for instructions"
);
}
while (1) {
if (!gstate.poll_slow_events()) {
gstate.do_io_or_sleep(1.0);
}
fflush(stdout);
if (gstate.time_to_exit()) {
msg_printf(NULL, MSG_INFO, "Time to exit");
break;
}
if (gstate.requested_exit) {
msg_printf(NULL, MSG_INFO, "Exit requested by user");
break;
}
#ifdef __EMX__
// give timeslice also to other processes,
// otherwise we will get 100% cpu
DosSleep(0);
#endif
}
gstate.quit_activities();
return 0;
}
int main(int argc, char** argv) {
int retval = 0;
#ifdef _WIN32
// This bit of silliness is required to properly detach when run from within a command
// prompt under Win32. The root cause of the problem is that CMD.EXE does not return
// control to the user until the spawned program exits, detaching from the console is
// not enough. So we need to do the following. If the -detach flag is given, trap it
// prior to the main setup in init_core_client. Reinvoke the program, changing the
// -detach into -detach_phase_two, and then exit. At this point, cmd.exe thinks all is
// well, and returns control to the user. Meanwhile the second invocation will grok the
// -detach_phase_two flag, and detach itself from the console, finally getting us to
// where we want to be.
int i;
int len;
char *commandLine;
STARTUPINFO si;
PROCESS_INFORMATION pi;
for (i = 1; i < argc; i++) {
// FIXME FIXME. Duplicate instances of -detach may cause this to be
// executed unnecessarily. At worst, I think it leads to a few extra
// processes being created and destroyed.
if (strcmp(argv[i], "-detach") == 0 || strcmp(argv[i], "--detach") == 0) {
argv[i] = "-detach_phase_two";
// start with space for two '"'s
len = 2;
for (i = 0; i < argc; i++) {
len += strlen(argv[i]) + 1;
}
if ((commandLine = (char *) malloc(len)) == NULL) {
// Drop back ten and punt. Can't do the detach thing, so we just carry on.
// At least the program will start.
break;
}
commandLine[0] = '"';
// OK, we can safely use strcpy and strcat, since we know that we allocated enough
strcpy(&commandLine[1], argv[0]);
strcat(commandLine, "\"");
for (i = 1; i < argc; i++) {
strcat(commandLine, " ");
strcat(commandLine, argv[i]);
}
memset(&si, 0, sizeof(si));
si.cb = sizeof(si);
// If process creation succeeds, we exit, if it fails punt and continue
// as usual. We won't detach properly, but the program will run.
if (CreateProcess(NULL, commandLine, NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi)) {
exit(0);
}
break;
}
}
#elif defined linux
int i;
for (i = 1; i < argc; i++) {
if (strcmp(argv[i], "-daemon") == 0 || strcmp(argv[i], "--daemon") == 0) {
syslog(LOG_DAEMON, "Starting Boinc-Daemon, listening on port %d.", GUI_RPC_PORT);
// from <unistd.h>:
// Detach from the controlling terminal and run in the background as system daemon.
// Don't change working directory to root ("/"), but redirect
// standard input, standard output and standard error to /dev/null.
daemon(1, 0);
break;
}
}
#endif
boinc_cleanup_completed = false;
init_core_client(argc, argv);
curl_init();
#ifdef _WIN32
// Figure out if we're on Win9x
OSVERSIONINFO osvi;
osvi.dwOSVersionInfoSize = sizeof(osvi);
GetVersionEx(&osvi);
g_bIsWin9x = osvi.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS;
if (g_bIsWin9x) {
// Win9x doesn't send us the shutdown or close console
// event, so we are going to create a hidden window
// to trap a WM_QUERYENDSESSION event.
g_hWin9xMonitorSystemThread = CreateThread(
NULL,
0,
Win9xMonitorSystemThread,
NULL,
0,
&g_Win9xMonitorSystemThreadID);
if (g_hWin9xMonitorSystemThread) {
CloseHandle(g_hWin9xMonitorSystemThread);
} else {
g_hWin9xMonitorSystemThread = NULL;
g_Win9xMonitorSystemThreadID = NULL;
}
}
// Initialize WinSock
#ifdef USE_WINSOCK
if ( WinsockInitialize() != 0 ) {
printf(
"BOINC Core Client Error Message\n"
"Failed to initialize the Windows Sockets interface\n"
"Terminating Application...\n"
);
return ERR_IO;
}
#endif
g_hClientLibraryDll = LoadLibrary("boinc.dll");
if(!g_hClientLibraryDll) {
printf(
"BOINC Core Client Error Message\n"
"Failed to initialize the BOINC Idle Detection Interface\n"
"BOINC will not be able to determine if the user is idle or not...\n"
);
}
if(g_hClientLibraryDll) {
ClientLibraryStartup fnClientLibraryStartup;
fnClientLibraryStartup = (ClientLibraryStartup)GetProcAddress(g_hClientLibraryDll, _T("ClientLibraryStartup"));
if(!fnClientLibraryStartup) {
FreeLibrary(g_hClientLibraryDll);
g_hClientLibraryDll = NULL;
} else {
if(!fnClientLibraryStartup()) {
FreeLibrary(g_hClientLibraryDll);
g_hClientLibraryDll = NULL;
}
}
}
SERVICE_TABLE_ENTRY dispatchTable[] = {
{ TEXT(SZSERVICENAME), (LPSERVICE_MAIN_FUNCTION)service_main },
{ NULL, NULL }
};
if ( (argc > 1) && ((*argv[1] == '-') || (*argv[1] == '/')) ) {
if ( stricmp( "daemon", argv[1]+1 ) == 0 ) {
// allow the system to know it is running as a Windows service
// and adjust it's diagnostics schemes accordingly.
gstate.executing_as_daemon = true;
printf( "\nStartServiceCtrlDispatcher being called.\n" );
printf( "This may take several seconds. Please wait.\n" );
if (!StartServiceCtrlDispatcher(dispatchTable)) {
LogEventErrorMessage(TEXT("StartServiceCtrlDispatcher failed."));
}
} else {
retval = boinc_main_loop();
}
} else {
retval = boinc_main_loop();
}
#else
#ifdef __APPLE__
// Initialize Mac OS X idle time measurement / idle detection
gEventHandle = NXOpenEventStatus();
#endif // __APPLE__
retval = boinc_main_loop();
#endif
#ifdef _WIN32
if(g_hClientLibraryDll) {
ClientLibraryShutdown fnClientLibraryShutdown;
fnClientLibraryShutdown = (ClientLibraryShutdown)GetProcAddress(g_hClientLibraryDll, _T("ClientLibraryShutdown"));
if(fnClientLibraryShutdown) {
fnClientLibraryShutdown();
}
if(!FreeLibrary(g_hClientLibraryDll)) {
printf(
"BOINC Core Client Error Message\n"
"Failed to cleanup the BOINC Idle Detection Interface\n"
);
}
g_hClientLibraryDll = NULL;
}
#ifdef USE_WINSOCK
if ( WinsockCleanup() != 0 ) {
printf(
"BOINC Core Client Error Message\n"
"Failed to cleanup the Windows Sockets interface\n"
);
return ERR_IO;
}
#endif
if (g_bIsWin9x && g_Win9xMonitorSystemThreadID)
PostThreadMessage(g_Win9xMonitorSystemThreadID, WM_QUIT, 0, 0);
#endif
curl_cleanup();
boinc_cleanup_completed = true;
return retval;
}
const char *BOINC_RCSID_f02264aefe = "$Id$";
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