scheduler/client.c

   1 /*
   2  * Client part of the client/server communication
   3  *
   4  * Copyright (C) 1998 Alexandre Julliard
   5  */
   6
   7 #include "config.h"
   8 #include "wine/port.h"
   9
  10 #include <assert.h>
  11 #include <ctype.h>
  12 #include <errno.h>
  13 #include <fcntl.h>
  14 #include <pwd.h>
  15 #include <signal.h>
  16 #include <stdio.h>
  17 #include <string.h>
  18 #include <sys/types.h>
  19 #ifdef HAVE_SYS_SOCKET_H
  20 # include <sys/socket.h>
  21 #endif
  22 #ifdef HAVE_SYS_WAIT_H
  23 #include <sys/wait.h>
  24 #endif
  25 #include <sys/un.h>
  26 #ifdef HAVE_SYS_MMAN_H
  27 #include <sys/mman.h>
  28 #endif
  29 #include <sys/stat.h>
  30 #include <sys/uio.h>
  31 #include <unistd.h>
  32 #include <stdarg.h>
  33
  34 #include "thread.h"
  35 #include "wine/server.h"
  36 #include "winerror.h"
  37 #include "options.h"
  38
  39 /* Some versions of glibc don't define this */
  40 #ifndef SCM_RIGHTS
  41 #define SCM_RIGHTS 1
  42 #endif
  43
  44 #define CONFDIR    "/.wine"        /* directory for Wine config relative to $HOME */
  45 #define SERVERDIR  "/wineserver-"  /* server socket directory (hostname appended) */
  46 #define SOCKETNAME "socket"        /* name of the socket file */
  47
  48 #ifndef HAVE_MSGHDR_ACCRIGHTS
  49 /* data structure used to pass an fd with sendmsg/recvmsg */
  50 struct cmsg_fd
  51 {
  52     int len;   /* sizeof structure */
  53     int level; /* SOL_SOCKET */
  54     int type;  /* SCM_RIGHTS */
  55     int fd;    /* fd to pass */
  56 };
  57 #endif  /* HAVE_MSGHDR_ACCRIGHTS */
  58
  59 static void *boot_thread_id;
  60 static sigset_t block_set;  /* signals to block during server calls */
  61 static int fd_socket;  /* socket to exchange file descriptors with the server */
  62
  63 /* die on a fatal error; use only during initialization */
  64 static void fatal_error( const char *err, ... ) WINE_NORETURN;
  65 static void fatal_error( const char *err, ... )
  66 {
  67     va_list args;
  68
  69     va_start( args, err );
  70     fprintf( stderr, "wine: " );
  71     vfprintf( stderr, err, args );
  72     va_end( args );
  73     exit(1);
  74 }
  75
  76 /* die on a fatal error; use only during initialization */
  77 static void fatal_perror( const char *err, ... ) WINE_NORETURN;
  78 static void fatal_perror( const char *err, ... )
  79 {
  80     va_list args;
  81
  82     va_start( args, err );
  83     fprintf( stderr, "wine: " );
  84     vfprintf( stderr, err, args );
  85     perror( " " );
  86     va_end( args );
  87     exit(1);
  88 }
  89
  90 /***********************************************************************
  91  *           server_protocol_error
  92  */
  93 void server_protocol_error( const char *err, ... )
  94 {
  95     va_list args;
  96
  97     va_start( args, err );
  98     fprintf( stderr, "wine client error:%p: ", NtCurrentTeb()->tid );
  99     vfprintf( stderr, err, args );
 100     va_end( args );
 101     SYSDEPS_ExitThread(1);
 102 }
 103
 104
 105 /***********************************************************************
 106  *           server_protocol_perror
 107  */
 108 void server_protocol_perror( const char *err )
 109 {
 110     fprintf( stderr, "wine client error:%p: ", NtCurrentTeb()->tid );
 111     perror( err );
 112     SYSDEPS_ExitThread(1);
 113 }
 114
 115
 116 /***********************************************************************
 117  *           __wine_server_exception_handler (NTDLL.@)
 118  */
 119 DWORD __wine_server_exception_handler( PEXCEPTION_RECORD record, EXCEPTION_FRAME *frame,
 120                                        CONTEXT *context, EXCEPTION_FRAME **pdispatcher )
 121 {
 122     struct __server_exception_frame *server_frame = (struct __server_exception_frame *)frame;
 123     if ((record->ExceptionFlags & (EH_UNWINDING | EH_EXIT_UNWIND)))
 124         NtCurrentTeb()->buffer_pos = server_frame->buffer_pos;
 125     return ExceptionContinueSearch;
 126 }
 127
 128
 129 /***********************************************************************
 130  *           wine_server_alloc_req (NTDLL.@)
 131  */
 132 void wine_server_alloc_req( union generic_request *req, size_t size )
 133 {
 134     unsigned int pos = NtCurrentTeb()->buffer_pos;
 135
 136     assert( size <= REQUEST_MAX_VAR_SIZE );
 137
 138     if (pos + size > NtCurrentTeb()->buffer_size)
 139         server_protocol_error( "buffer overflow %d bytes\n",
 140                                pos + size - NtCurrentTeb()->buffer_pos );
 141
 142     NtCurrentTeb()->buffer_pos = pos + size;
 143     req->header.var_offset = pos;
 144     req->header.var_size = size;
 145 }
 146
 147
 148 /***********************************************************************
 149  *           send_request
 150  *
 151  * Send a request to the server.
 152  */
 153 static void send_request( union generic_request *request )
 154 {
 155     int ret;
 156
 157     if ((ret = write( NtCurrentTeb()->request_fd, request, sizeof(*request) )) == sizeof(*request))
 158         return;
 159     if (ret >= 0) server_protocol_error( "partial write %d\n", ret );
 160     if (errno == EPIPE) SYSDEPS_ExitThread(0);
 161     server_protocol_perror( "sendmsg" );
 162 }
 163
 164 /***********************************************************************
 165  *           wait_reply
 166  *
 167  * Wait for a reply from the server.
 168  */
 169 static void wait_reply( union generic_request *req )
 170 {
 171     int ret;
 172
 173     for (;;)
 174     {
 175         if ((ret = read( NtCurrentTeb()->reply_fd, req, sizeof(*req) )) == sizeof(*req))
 176             return;
 177         if (!ret) break;
 178         if (ret > 0) server_protocol_error( "partial read %d\n", ret );
 179         if (errno == EINTR) continue;
 180         if (errno == EPIPE) break;
 181         server_protocol_perror("read");
 182     }
 183     /* the server closed the connection; time to die... */
 184     SYSDEPS_ExitThread(0);
 185 }
 186
 187
 188 /***********************************************************************
 189  *           wine_server_call (NTDLL.@)
 190  *
 191  * Perform a server call.
 192  */
 193 unsigned int wine_server_call( union generic_request *req, size_t size )
 194 {
 195     sigset_t old_set;
 196
 197     memset( (char *)req + size, 0, sizeof(*req) - size );
 198     sigprocmask( SIG_BLOCK, &block_set, &old_set );
 199     send_request( req );
 200     wait_reply( req );
 201     sigprocmask( SIG_SETMASK, &old_set, NULL );
 202     return req->header.error;
 203 }
 204
 205
 206 /***********************************************************************
 207  *           wine_server_send_fd
 208  *
 209  * Send a file descriptor to the server.
 210  */
 211 void wine_server_send_fd( int fd )
 212 {
 213 #ifndef HAVE_MSGHDR_ACCRIGHTS
 214     struct cmsg_fd cmsg;
 215 #endif
 216     struct send_fd data;
 217     struct msghdr msghdr;
 218     struct iovec vec;
 219     int ret;
 220
 221     vec.iov_base = (void *)&data;
 222     vec.iov_len  = sizeof(data);
 223
 224     msghdr.msg_name    = NULL;
 225     msghdr.msg_namelen = 0;
 226     msghdr.msg_iov     = &vec;
 227     msghdr.msg_iovlen  = 1;
 228
 229 #ifdef HAVE_MSGHDR_ACCRIGHTS
 230     msghdr.msg_accrights    = (void *)&fd;
 231     msghdr.msg_accrightslen = sizeof(fd);
 232 #else  /* HAVE_MSGHDR_ACCRIGHTS */
 233     cmsg.len   = sizeof(cmsg);
 234     cmsg.level = SOL_SOCKET;
 235     cmsg.type  = SCM_RIGHTS;
 236     cmsg.fd    = fd;
 237     msghdr.msg_control    = &cmsg;
 238     msghdr.msg_controllen = sizeof(cmsg);
 239     msghdr.msg_flags      = 0;
 240 #endif  /* HAVE_MSGHDR_ACCRIGHTS */
 241
 242     data.tid = (void *)GetCurrentThreadId();
 243     data.fd  = fd;
 244
 245     for (;;)
 246     {
 247         if ((ret = sendmsg( fd_socket, &msghdr, 0 )) == sizeof(data)) return;
 248         if (ret >= 0) server_protocol_error( "partial write %d\n", ret );
 249         if (errno == EINTR) continue;
 250         if (errno == EPIPE) SYSDEPS_ExitThread(0);
 251         server_protocol_perror( "sendmsg" );
 252     }
 253 }
 254
 255
 256 /***********************************************************************
 257  *           receive_fd
 258  *
 259  * Receive a file descriptor passed from the server.
 260  */
 261 static int receive_fd( handle_t *handle )
 262 {
 263     struct iovec vec;
 264     int ret, fd;
 265
 266 #ifdef HAVE_MSGHDR_ACCRIGHTS
 267     struct msghdr msghdr;
 268
 269     fd = -1;
 270     msghdr.msg_accrights    = (void *)&fd;
 271     msghdr.msg_accrightslen = sizeof(fd);
 272 #else  /* HAVE_MSGHDR_ACCRIGHTS */
 273     struct msghdr msghdr;
 274     struct cmsg_fd cmsg;
 275
 276     cmsg.len   = sizeof(cmsg);
 277     cmsg.level = SOL_SOCKET;
 278     cmsg.type  = SCM_RIGHTS;
 279     cmsg.fd    = -1;
 280     msghdr.msg_control    = &cmsg;
 281     msghdr.msg_controllen = sizeof(cmsg);
 282     msghdr.msg_flags      = 0;
 283 #endif  /* HAVE_MSGHDR_ACCRIGHTS */
 284
 285     msghdr.msg_name    = NULL;
 286     msghdr.msg_namelen = 0;
 287     msghdr.msg_iov     = &vec;
 288     msghdr.msg_iovlen  = 1;
 289     vec.iov_base = (void *)handle;
 290     vec.iov_len  = sizeof(*handle);
 291
 292     for (;;)
 293     {
 294         if ((ret = recvmsg( fd_socket, &msghdr, 0 )) > 0)
 295         {
 296 #ifndef HAVE_MSGHDR_ACCRIGHTS
 297             fd = cmsg.fd;
 298 #endif
 299             if (fd == -1) server_protocol_error( "no fd received for handle %d\n", *handle );
 300             fcntl( fd, F_SETFD, 1 ); /* set close on exec flag */
 301             return fd;
 302         }
 303         if (!ret) break;
 304         if (errno == EINTR) continue;
 305         if (errno == EPIPE) break;
 306         server_protocol_perror("recvmsg");
 307     }
 308     /* the server closed the connection; time to die... */
 309     SYSDEPS_ExitThread(0);
 310 }
 311
 312
 313 /***********************************************************************
 314  *           wine_server_recv_fd
 315  *
 316  * Receive a file descriptor passed from the server.
 317  * The file descriptor must not be closed.
 318  * Return -2 if a race condition stole our file descriptor.
 319  */
 320 int wine_server_recv_fd( handle_t handle )
 321 {
 322     handle_t fd_handle;
 323
 324     int fd = receive_fd( &fd_handle );
 325
 326     /* now store it in the server fd cache for this handle */
 327
 328     SERVER_START_REQ( set_handle_info )
 329     {
 330         req->handle = fd_handle;
 331         req->flags  = 0;
 332         req->mask   = 0;
 333         req->fd     = fd;
 334         if (!SERVER_CALL())
 335         {
 336             if (req->cur_fd != fd)
 337             {
 338                 /* someone was here before us */
 339                 close( fd );
 340                 fd = req->cur_fd;
 341             }
 342         }
 343         else
 344         {
 345             close( fd );
 346             fd = -1;
 347         }
 348     }
 349     SERVER_END_REQ;
 350
 351     if (handle != fd_handle) fd = -2;  /* not the one we expected */
 352     return fd;
 353 }
 354
 355
 356 /***********************************************************************
 357  *           get_config_dir
 358  *
 359  * Return the configuration directory ($WINEPREFIX or $HOME/.wine)
 360  */
 361 const char *get_config_dir(void)
 362 {
 363     static char *confdir;
 364     if (!confdir)
 365     {
 366         const char *prefix = getenv( "WINEPREFIX" );
 367         if (prefix)
 368         {
 369             int len = strlen(prefix);
 370             if (!(confdir = strdup( prefix ))) fatal_error( "out of memory\n" );
 371             if (len > 1 && confdir[len-1] == '/') confdir[len-1] = 0;
 372         }
 373         else
 374         {
 375             const char *home = getenv( "HOME" );
 376             if (!home)
 377             {
 378                 struct passwd *pwd = getpwuid( getuid() );
 379                 if (!pwd) fatal_error( "could not find your home directory\n" );
 380                 home = pwd->pw_dir;
 381             }
 382             if (!(confdir = malloc( strlen(home) + strlen(CONFDIR) + 1 )))
 383                 fatal_error( "out of memory\n" );
 384             strcpy( confdir, home );
 385             strcat( confdir, CONFDIR );
 386         }
 387     }
 388     return confdir;
 389 }
 390
 391
 392 /***********************************************************************
 393  *           start_server
 394  *
 395  * Start a new wine server.
 396  */
 397 static void start_server( const char *oldcwd )
 398 {
 399     static int started;  /* we only try once */
 400     char *path, *p;
 401     if (!started)
 402     {
 403         int status;
 404         int pid = fork();
 405         if (pid == -1) fatal_perror( "fork" );
 406         if (!pid)
 407         {
 408             /* if server is explicitly specified, use this */
 409             if ((p = getenv("WINESERVER")))
 410             {
 411                 if (p[0] != '/' && oldcwd[0] == '/')  /* make it an absolute path */
 412                 {
 413                     if (!(path = malloc( strlen(oldcwd) + strlen(p) + 1 )))
 414                         fatal_error( "out of memory\n" );
 415                     sprintf( path, "%s/%s", oldcwd, p );
 416                     p = path;
 417                 }
 418                 execl( p, "wineserver", NULL );
 419                 fatal_perror( "could not exec the server '%s'\n"
 420                               "    specified in the WINESERVER environment variable", p );
 421             }
 422
 423             /* first try the installation dir */
 424             execl( BINDIR "/wineserver", "wineserver", NULL );
 425
 426             /* now try the dir we were launched from */
 427             if (full_argv0)
 428             {
 429                 if (!(path = malloc( strlen(full_argv0) + 20 )))
 430                     fatal_error( "out of memory\n" );
 431                 if ((p = strrchr( strcpy( path, full_argv0 ), '/' )))
 432                 {
 433                     strcpy( p, "/wineserver" );
 434                     execl( path, "wineserver", NULL );
 435                     strcpy( p, "/server/wineserver" );
 436                     execl( path, "wineserver", NULL );
 437                 }
 438                 free(path);
 439             }
 440
 441             /* now try the path */
 442             execlp( "wineserver", "wineserver", NULL );
 443
 444             /* and finally the current dir */
 445             if (!(path = malloc( strlen(oldcwd) + 20 )))
 446                 fatal_error( "out of memory\n" );
 447             p = strcpy( path, oldcwd ) + strlen( oldcwd );
 448             strcpy( p, "/wineserver" );
 449             execl( path, "wineserver", NULL );
 450             strcpy( p, "/server/wineserver" );
 451             execl( path, "wineserver", NULL );
 452             free(path);
 453             fatal_error( "could not exec wineserver\n" );
 454         }
 455         started = 1;
 456         waitpid( pid, &status, 0 );
 457         status = WIFEXITED(status) ? WEXITSTATUS(status) : 1;
 458         if (status) exit(status);  /* server failed */
 459     }
 460 }
 461
 462 /***********************************************************************
 463  *           server_connect
 464  *
 465  * Attempt to connect to an existing server socket.
 466  * We need to be in the server directory already.
 467  */
 468 static int server_connect( const char *oldcwd, const char *serverdir )
 469 {
 470     struct sockaddr_un addr;
 471     struct stat st;
 472     int s, slen, retry;
 473
 474     /* chdir to the server directory */
 475     if (chdir( serverdir ) == -1)
 476     {
 477         if (errno != ENOENT) fatal_perror( "chdir to %s", serverdir );
 478         start_server( "." );
 479         if (chdir( serverdir ) == -1) fatal_perror( "chdir to %s", serverdir );
 480     }
 481
 482     /* make sure we are at the right place */
 483     if (stat( ".", &st ) == -1) fatal_perror( "stat %s", serverdir );
 484     if (st.st_uid != getuid()) fatal_error( "'%s' is not owned by you\n", serverdir );
 485     if (st.st_mode & 077) fatal_error( "'%s' must not be accessible by other users\n", serverdir );
 486
 487     for (retry = 0; retry < 3; retry++)
 488     {
 489         /* if not the first try, wait a bit to leave the server time to exit */
 490         if (retry) usleep( 100000 * retry * retry );
 491
 492         /* check for an existing socket */
 493         if (lstat( SOCKETNAME, &st ) == -1)
 494         {
 495             if (errno != ENOENT) fatal_perror( "lstat %s/%s", serverdir, SOCKETNAME );
 496             start_server( oldcwd );
 497             if (lstat( SOCKETNAME, &st ) == -1) fatal_perror( "lstat %s/%s", serverdir, SOCKETNAME );
 498         }
 499
 500         /* make sure the socket is sane (ISFIFO needed for Solaris) */
 501         if (!S_ISSOCK(st.st_mode) && !S_ISFIFO(st.st_mode))
 502             fatal_error( "'%s/%s' is not a socket\n", serverdir, SOCKETNAME );
 503         if (st.st_uid != getuid())
 504             fatal_error( "'%s/%s' is not owned by you\n", serverdir, SOCKETNAME );
 505
 506         /* try to connect to it */
 507         addr.sun_family = AF_UNIX;
 508         strcpy( addr.sun_path, SOCKETNAME );
 509         slen = sizeof(addr) - sizeof(addr.sun_path) + strlen(addr.sun_path) + 1;
 510 #ifdef HAVE_SOCKADDR_SUN_LEN
 511         addr.sun_len = slen;
 512 #endif
 513         if ((s = socket( AF_UNIX, SOCK_STREAM, 0 )) == -1) fatal_perror( "socket" );
 514         if (connect( s, (struct sockaddr *)&addr, slen ) != -1)
 515         {
 516             fcntl( s, F_SETFD, 1 ); /* set close on exec flag */
 517             return s;
 518         }
 519         close( s );
 520     }
 521     fatal_error( "file '%s/%s' exists,\n"
 522                  "   but I cannot connect to it; maybe the wineserver has crashed?\n"
 523                  "   If this is the case, you should remove this socket file and try again.\n",
 524                  serverdir, SOCKETNAME );
 525 }
 526
 527
 528 /***********************************************************************
 529  *           CLIENT_InitServer
 530  *
 531  * Start the server and create the initial socket pair.
 532  */
 533 void CLIENT_InitServer(void)
 534 {
 535     int size;
 536     char hostname[64];
 537     char *oldcwd, *serverdir;
 538     const char *configdir;
 539     handle_t dummy_handle;
 540
 541     /* retrieve the current directory */
 542     for (size = 512; ; size *= 2)
 543     {
 544         if (!(oldcwd = malloc( size ))) break;
 545         if (getcwd( oldcwd, size )) break;
 546         free( oldcwd );
 547         if (errno == ERANGE) continue;
 548         oldcwd = NULL;
 549         break;
 550     }
 551
 552     /* if argv[0] is a relative path, make it absolute */
 553     full_argv0 = argv0;
 554     if (oldcwd && argv0[0] != '/' && strchr( argv0, '/' ))
 555     {
 556         char *new_argv0 = malloc( strlen(oldcwd) + strlen(argv0) + 2 );
 557         if (new_argv0)
 558         {
 559             strcpy( new_argv0, oldcwd );
 560             strcat( new_argv0, "/" );
 561             strcat( new_argv0, argv0 );
 562             full_argv0 = new_argv0;
 563         }
 564     }
 565
 566     /* get the server directory name */
 567     if (gethostname( hostname, sizeof(hostname) ) == -1) fatal_perror( "gethostname" );
 568     configdir = get_config_dir();
 569     serverdir = malloc( strlen(configdir) + strlen(SERVERDIR) + strlen(hostname) + 1 );
 570     if (!serverdir) fatal_error( "out of memory\n" );
 571     strcpy( serverdir, configdir );
 572     strcat( serverdir, SERVERDIR );
 573     strcat( serverdir, hostname );
 574
 575     /* connect to the server */
 576     fd_socket = server_connect( oldcwd, serverdir );
 577
 578     /* switch back to the starting directory */
 579     if (oldcwd)
 580     {
 581         chdir( oldcwd );
 582         free( oldcwd );
 583     }
 584
 585     /* setup the signal mask */
 586     sigemptyset( &block_set );
 587     sigaddset( &block_set, SIGALRM );
 588     sigaddset( &block_set, SIGIO );
 589     sigaddset( &block_set, SIGINT );
 590     sigaddset( &block_set, SIGHUP );
 591
 592     /* receive the first thread request fd on the main socket */
 593     NtCurrentTeb()->request_fd = receive_fd( &dummy_handle );
 594
 595     CLIENT_InitThread();
 596 }
 597
 598
 599 /***********************************************************************
 600  *           set_request_buffer
 601  */
 602 inline static void set_request_buffer(void)
 603 {
 604     char *name;
 605     int fd, ret;
 606     unsigned int offset, size;
 607
 608     /* create a temporary file */
 609     do
 610     {
 611         if (!(name = tmpnam(NULL))) server_protocol_perror( "tmpnam" );
 612         fd = open( name, O_CREAT | O_EXCL | O_RDWR, 0600 );
 613     } while ((fd == -1) && (errno == EEXIST));
 614
 615     if (fd == -1) server_protocol_perror( "create" );
 616     unlink( name );
 617
 618     wine_server_send_fd( fd );
 619
 620     SERVER_START_REQ( set_thread_buffer )
 621     {
 622         req->fd = fd;
 623         ret = SERVER_CALL();
 624         offset = req->offset;
 625         size = req->size;
 626     }
 627     SERVER_END_REQ;
 628     if (ret) server_protocol_error( "set_thread_buffer failed with status %x\n", ret );
 629
 630     if ((NtCurrentTeb()->buffer = mmap( 0, size, PROT_READ | PROT_WRITE,
 631                                         MAP_SHARED, fd, offset )) == (void*)-1)
 632         server_protocol_perror( "mmap" );
 633
 634     close( fd );
 635     NtCurrentTeb()->buffer_pos  = 0;
 636     NtCurrentTeb()->buffer_size = size;
 637 }
 638
 639
 640 /***********************************************************************
 641  *           CLIENT_InitThread
 642  *
 643  * Send an init thread request. Return 0 if OK.
 644  */
 645 void CLIENT_InitThread(void)
 646 {
 647     TEB *teb = NtCurrentTeb();
 648     int version, ret;
 649     int reply_pipe[2];
 650
 651     /* ignore SIGPIPE so that we get a EPIPE error instead  */
 652     signal( SIGPIPE, SIG_IGN );
 653
 654     /* create the server->client communication pipes */
 655     if (pipe( reply_pipe ) == -1) server_protocol_perror( "pipe" );
 656     if (pipe( teb->wait_fd ) == -1) server_protocol_perror( "pipe" );
 657     wine_server_send_fd( reply_pipe[1] );
 658     wine_server_send_fd( teb->wait_fd[1] );
 659     teb->reply_fd = reply_pipe[0];
 660
 661     /* set close on exec flag */
 662     fcntl( teb->reply_fd, F_SETFD, 1 );
 663     fcntl( teb->wait_fd[0], F_SETFD, 1 );
 664     fcntl( teb->wait_fd[1], F_SETFD, 1 );
 665
 666     SERVER_START_REQ( init_thread )
 667     {
 668         req->unix_pid    = getpid();
 669         req->teb         = teb;
 670         req->entry       = teb->entry_point;
 671         req->reply_fd    = reply_pipe[1];
 672         req->wait_fd     = teb->wait_fd[1];
 673         ret = SERVER_CALL();
 674         teb->pid = req->pid;
 675         teb->tid = req->tid;
 676         version  = req->version;
 677         if (req->boot) boot_thread_id = teb->tid;
 678         else if (boot_thread_id == teb->tid) boot_thread_id = 0;
 679         close( reply_pipe[1] );
 680     }
 681     SERVER_END_REQ;
 682
 683     if (ret) server_protocol_error( "init_thread failed with status %x\n", ret );
 684     if (version != SERVER_PROTOCOL_VERSION)
 685         server_protocol_error( "version mismatch %d/%d.\n"
 686                                "Your %s binary was not upgraded correctly,\n"
 687                                "or you have an older one somewhere in your PATH.\n"
 688                                "Or maybe the wrong wineserver is still running?\n",
 689                                version, SERVER_PROTOCOL_VERSION,
 690                                (version > SERVER_PROTOCOL_VERSION) ? "wine" : "wineserver" );
 691     set_request_buffer();
 692 }
 693
 694
 695 /***********************************************************************
 696  *           CLIENT_BootDone
 697  *
 698  * Signal that we have finished booting, and set debug level.
 699  */
 700 void CLIENT_BootDone( int debug_level )
 701 {
 702     SERVER_START_REQ( boot_done )
 703     {
 704         req->debug_level = debug_level;
 705         SERVER_CALL();
 706     }
 707     SERVER_END_REQ;
 708 }
 709
 710
 711 /***********************************************************************
 712  *           CLIENT_IsBootThread
 713  *
 714  * Return TRUE if current thread is the boot thread.
 715  */
 716 int CLIENT_IsBootThread(void)
 717 {
 718     return (GetCurrentThreadId() == (DWORD)boot_thread_id);
 719 }