scheduler/client.c

   1 /*
   2  * Client part of the client/server communication
   3  *
   4  * Copyright (C) 1998 Alexandre Julliard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22 #include "wine/port.h"
  23
  24 #include <assert.h>
  25 #include <ctype.h>
  26 #include <errno.h>
  27 #include <fcntl.h>
  28 #include <pwd.h>
  29 #include <signal.h>
  30 #include <stdio.h>
  31 #include <string.h>
  32 #include <sys/types.h>
  33 #ifdef HAVE_SYS_SOCKET_H
  34 # include <sys/socket.h>
  35 #endif
  36 #ifdef HAVE_SYS_WAIT_H
  37 #include <sys/wait.h>
  38 #endif
  39 #include <sys/un.h>
  40 #ifdef HAVE_SYS_MMAN_H
  41 #include <sys/mman.h>
  42 #endif
  43 #include <sys/stat.h>
  44 #include <sys/uio.h>
  45 #include <unistd.h>
  46 #include <stdarg.h>
  47
  48 #include "thread.h"
  49 #include "wine/server.h"
  50 #include "winerror.h"
  51 #include "options.h"
  52
  53 /* Some versions of glibc don't define this */
  54 #ifndef SCM_RIGHTS
  55 #define SCM_RIGHTS 1
  56 #endif
  57
  58 #define CONFDIR    "/.wine"        /* directory for Wine config relative to $HOME */
  59 #define SERVERDIR  "/wineserver-"  /* server socket directory (hostname appended) */
  60 #define SOCKETNAME "socket"        /* name of the socket file */
  61
  62 #ifndef HAVE_MSGHDR_ACCRIGHTS
  63 /* data structure used to pass an fd with sendmsg/recvmsg */
  64 struct cmsg_fd
  65 {
  66     int len;   /* sizeof structure */
  67     int level; /* SOL_SOCKET */
  68     int type;  /* SCM_RIGHTS */
  69     int fd;    /* fd to pass */
  70 };
  71 #endif  /* HAVE_MSGHDR_ACCRIGHTS */
  72
  73 static void *boot_thread_id;
  74 static sigset_t block_set;  /* signals to block during server calls */
  75 static int fd_socket;  /* socket to exchange file descriptors with the server */
  76
  77 /* die on a fatal error; use only during initialization */
  78 static void fatal_error( const char *err, ... ) WINE_NORETURN;
  79 static void fatal_error( const char *err, ... )
  80 {
  81     va_list args;
  82
  83     va_start( args, err );
  84     fprintf( stderr, "wine: " );
  85     vfprintf( stderr, err, args );
  86     va_end( args );
  87     exit(1);
  88 }
  89
  90 /* die on a fatal error; use only during initialization */
  91 static void fatal_perror( const char *err, ... ) WINE_NORETURN;
  92 static void fatal_perror( const char *err, ... )
  93 {
  94     va_list args;
  95
  96     va_start( args, err );
  97     fprintf( stderr, "wine: " );
  98     vfprintf( stderr, err, args );
  99     perror( " " );
 100     va_end( args );
 101     exit(1);
 102 }
 103
 104 /***********************************************************************
 105  *           server_protocol_error
 106  */
 107 void server_protocol_error( const char *err, ... )
 108 {
 109     va_list args;
 110
 111     va_start( args, err );
 112     fprintf( stderr, "wine client error:%p: ", NtCurrentTeb()->tid );
 113     vfprintf( stderr, err, args );
 114     va_end( args );
 115     SYSDEPS_AbortThread(1);
 116 }
 117
 118
 119 /***********************************************************************
 120  *           server_protocol_perror
 121  */
 122 void server_protocol_perror( const char *err )
 123 {
 124     fprintf( stderr, "wine client error:%p: ", NtCurrentTeb()->tid );
 125     perror( err );
 126     SYSDEPS_AbortThread(1);
 127 }
 128
 129
 130 /***********************************************************************
 131  *           send_request
 132  *
 133  * Send a request to the server.
 134  */
 135 static void send_request( const struct __server_request_info *req )
 136 {
 137     int i, ret;
 138
 139     if (!req->u.req.request_header.request_size)
 140     {
 141         if ((ret = write( NtCurrentTeb()->request_fd, &req->u.req,
 142                           sizeof(req->u.req) )) == sizeof(req->u.req)) return;
 143
 144     }
 145     else
 146     {
 147         struct iovec vec[__SERVER_MAX_DATA+1];
 148
 149         vec[0].iov_base = (void *)&req->u.req;
 150         vec[0].iov_len = sizeof(req->u.req);
 151         for (i = 0; i < req->data_count; i++)
 152         {
 153             vec[i+1].iov_base = (void *)req->data[i].ptr;
 154             vec[i+1].iov_len = req->data[i].size;
 155         }
 156         if ((ret = writev( NtCurrentTeb()->request_fd, vec, i+1 )) ==
 157             req->u.req.request_header.request_size + sizeof(req->u.req)) return;
 158     }
 159
 160     if (ret >= 0) server_protocol_error( "partial write %d\n", ret );
 161     if (errno == EPIPE) SYSDEPS_AbortThread(0);
 162     server_protocol_perror( "sendmsg" );
 163 }
 164
 165
 166 /***********************************************************************
 167  *           read_reply_data
 168  *
 169  * Read data from the reply buffer; helper for wait_reply.
 170  */
 171 static void read_reply_data( void *buffer, size_t size )
 172 {
 173     int ret;
 174
 175     for (;;)
 176     {
 177         if ((ret = read( NtCurrentTeb()->reply_fd, buffer, size )) > 0)
 178         {
 179             if (!(size -= ret)) return;
 180             buffer = (char *)buffer + ret;
 181             continue;
 182         }
 183         if (!ret) break;
 184         if (errno == EINTR) continue;
 185         if (errno == EPIPE) break;
 186         server_protocol_perror("read");
 187     }
 188     /* the server closed the connection; time to die... */
 189     SYSDEPS_AbortThread(0);
 190 }
 191
 192
 193 /***********************************************************************
 194  *           wait_reply
 195  *
 196  * Wait for a reply from the server.
 197  */
 198 inline static void wait_reply( struct __server_request_info *req )
 199 {
 200     read_reply_data( &req->u.reply, sizeof(req->u.reply) );
 201     if (req->u.reply.reply_header.reply_size)
 202         read_reply_data( req->reply_data, req->u.reply.reply_header.reply_size );
 203 }
 204
 205
 206 /***********************************************************************
 207  *           wine_server_call (NTDLL.@)
 208  *
 209  * Perform a server call.
 210  */
 211 unsigned int wine_server_call( void *req_ptr )
 212 {
 213     struct __server_request_info * const req = req_ptr;
 214     sigset_t old_set;
 215
 216     memset( (char *)&req->u.req + req->size, 0, sizeof(req->u.req) - req->size );
 217     sigprocmask( SIG_BLOCK, &block_set, &old_set );
 218     send_request( req );
 219     wait_reply( req );
 220     sigprocmask( SIG_SETMASK, &old_set, NULL );
 221     return req->u.reply.reply_header.error;
 222 }
 223
 224
 225 /***********************************************************************
 226  *           wine_server_send_fd
 227  *
 228  * Send a file descriptor to the server.
 229  */
 230 void wine_server_send_fd( int fd )
 231 {
 232 #ifndef HAVE_MSGHDR_ACCRIGHTS
 233     struct cmsg_fd cmsg;
 234 #endif
 235     struct send_fd data;
 236     struct msghdr msghdr;
 237     struct iovec vec;
 238     int ret;
 239
 240     vec.iov_base = (void *)&data;
 241     vec.iov_len  = sizeof(data);
 242
 243     msghdr.msg_name    = NULL;
 244     msghdr.msg_namelen = 0;
 245     msghdr.msg_iov     = &vec;
 246     msghdr.msg_iovlen  = 1;
 247
 248 #ifdef HAVE_MSGHDR_ACCRIGHTS
 249     msghdr.msg_accrights    = (void *)&fd;
 250     msghdr.msg_accrightslen = sizeof(fd);
 251 #else  /* HAVE_MSGHDR_ACCRIGHTS */
 252     cmsg.len   = sizeof(cmsg);
 253     cmsg.level = SOL_SOCKET;
 254     cmsg.type  = SCM_RIGHTS;
 255     cmsg.fd    = fd;
 256     msghdr.msg_control    = &cmsg;
 257     msghdr.msg_controllen = sizeof(cmsg);
 258     msghdr.msg_flags      = 0;
 259 #endif  /* HAVE_MSGHDR_ACCRIGHTS */
 260
 261     data.tid = (void *)GetCurrentThreadId();
 262     data.fd  = fd;
 263
 264     for (;;)
 265     {
 266         if ((ret = sendmsg( fd_socket, &msghdr, 0 )) == sizeof(data)) return;
 267         if (ret >= 0) server_protocol_error( "partial write %d\n", ret );
 268         if (errno == EINTR) continue;
 269         if (errno == EPIPE) SYSDEPS_AbortThread(0);
 270         server_protocol_perror( "sendmsg" );
 271     }
 272 }
 273
 274
 275 /***********************************************************************
 276  *           receive_fd
 277  *
 278  * Receive a file descriptor passed from the server.
 279  */
 280 static int receive_fd( handle_t *handle )
 281 {
 282     struct iovec vec;
 283     int ret, fd;
 284
 285 #ifdef HAVE_MSGHDR_ACCRIGHTS
 286     struct msghdr msghdr;
 287
 288     fd = -1;
 289     msghdr.msg_accrights    = (void *)&fd;
 290     msghdr.msg_accrightslen = sizeof(fd);
 291 #else  /* HAVE_MSGHDR_ACCRIGHTS */
 292     struct msghdr msghdr;
 293     struct cmsg_fd cmsg;
 294
 295     cmsg.len   = sizeof(cmsg);
 296     cmsg.level = SOL_SOCKET;
 297     cmsg.type  = SCM_RIGHTS;
 298     cmsg.fd    = -1;
 299     msghdr.msg_control    = &cmsg;
 300     msghdr.msg_controllen = sizeof(cmsg);
 301     msghdr.msg_flags      = 0;
 302 #endif  /* HAVE_MSGHDR_ACCRIGHTS */
 303
 304     msghdr.msg_name    = NULL;
 305     msghdr.msg_namelen = 0;
 306     msghdr.msg_iov     = &vec;
 307     msghdr.msg_iovlen  = 1;
 308     vec.iov_base = (void *)handle;
 309     vec.iov_len  = sizeof(*handle);
 310
 311     for (;;)
 312     {
 313         if ((ret = recvmsg( fd_socket, &msghdr, 0 )) > 0)
 314         {
 315 #ifndef HAVE_MSGHDR_ACCRIGHTS
 316             fd = cmsg.fd;
 317 #endif
 318             if (fd == -1) server_protocol_error( "no fd received for handle %d\n", *handle );
 319             fcntl( fd, F_SETFD, 1 ); /* set close on exec flag */
 320             return fd;
 321         }
 322         if (!ret) break;
 323         if (errno == EINTR) continue;
 324         if (errno == EPIPE) break;
 325         server_protocol_perror("recvmsg");
 326     }
 327     /* the server closed the connection; time to die... */
 328     SYSDEPS_AbortThread(0);
 329 }
 330
 331
 332 /***********************************************************************
 333  *           store_cached_fd
 334  *
 335  * Store the cached fd value for a given handle back into the server.
 336  * Returns the new fd, which can be different if there was already an
 337  * fd in the cache for that handle.
 338  */
 339 inline static int store_cached_fd( int fd, handle_t handle )
 340 {
 341     SERVER_START_REQ( set_handle_info )
 342     {
 343         req->handle = handle;
 344         req->flags  = 0;
 345         req->mask   = 0;
 346         req->fd     = fd;
 347         if (!wine_server_call( req ))
 348         {
 349             if (reply->cur_fd != fd)
 350             {
 351                 /* someone was here before us */
 352                 close( fd );
 353                 fd = reply->cur_fd;
 354             }
 355         }
 356         else
 357         {
 358             close( fd );
 359             fd = -1;
 360         }
 361     }
 362     SERVER_END_REQ;
 363     return fd;
 364 }
 365
 366
 367 /***********************************************************************
 368  *           wine_server_handle_to_fd   (NTDLL.@)
 369  *
 370  * Retrieve the Unix fd corresponding to a file handle.
 371  */
 372 int wine_server_handle_to_fd( handle_t handle, unsigned int access, int *unix_fd,
 373                               enum fd_type *type, int *flags )
 374 {
 375     handle_t fd_handle;
 376     int ret, fd = -1;
 377
 378     *unix_fd = -1;
 379     for (;;)
 380     {
 381         SERVER_START_REQ( get_handle_fd )
 382         {
 383             req->handle = handle;
 384             req->access = access;
 385             if (!(ret = wine_server_call( req ))) fd = reply->fd;
 386             if (type) *type = reply->type;
 387             if (flags) *flags = reply->flags;
 388         }
 389         SERVER_END_REQ;
 390         if (ret) return ret;
 391
 392         if (fd != -1) break;
 393
 394         /* it wasn't in the cache, get it from the server */
 395         fd = receive_fd( &fd_handle );
 396         /* and store it back into the cache */
 397         fd = store_cached_fd( fd, fd_handle );
 398
 399         if (fd_handle == handle) break;
 400         /* if we received a different handle this means there was
 401          * a race with another thread; we restart everything from
 402          * scratch in this case.
 403          */
 404     }
 405
 406     if ((fd != -1) && ((fd = dup(fd)) == -1)) return STATUS_TOO_MANY_OPENED_FILES;
 407     *unix_fd = fd;
 408     return STATUS_SUCCESS;
 409 }
 410
 411
 412 /***********************************************************************
 413  *           get_config_dir
 414  *
 415  * Return the configuration directory ($WINEPREFIX or $HOME/.wine)
 416  */
 417 const char *get_config_dir(void)
 418 {
 419     static char *confdir;
 420     if (!confdir)
 421     {
 422         const char *prefix = getenv( "WINEPREFIX" );
 423         if (prefix)
 424         {
 425             int len = strlen(prefix);
 426             if (!(confdir = strdup( prefix ))) fatal_error( "out of memory\n" );
 427             if (len > 1 && confdir[len-1] == '/') confdir[len-1] = 0;
 428         }
 429         else
 430         {
 431             const char *home = getenv( "HOME" );
 432             if (!home)
 433             {
 434                 struct passwd *pwd = getpwuid( getuid() );
 435                 if (!pwd) fatal_error( "could not find your home directory\n" );
 436                 home = pwd->pw_dir;
 437             }
 438             if (!(confdir = malloc( strlen(home) + strlen(CONFDIR) + 1 )))
 439                 fatal_error( "out of memory\n" );
 440             strcpy( confdir, home );
 441             strcat( confdir, CONFDIR );
 442         }
 443     }
 444     return confdir;
 445 }
 446
 447
 448 /***********************************************************************
 449  *           start_server
 450  *
 451  * Start a new wine server.
 452  */
 453 static void start_server( const char *oldcwd )
 454 {
 455     static int started;  /* we only try once */
 456     char *path, *p;
 457     if (!started)
 458     {
 459         int status;
 460         int pid = fork();
 461         if (pid == -1) fatal_perror( "fork" );
 462         if (!pid)
 463         {
 464             /* if server is explicitly specified, use this */
 465             if ((p = getenv("WINESERVER")))
 466             {
 467                 if (p[0] != '/' && oldcwd[0] == '/')  /* make it an absolute path */
 468                 {
 469                     if (!(path = malloc( strlen(oldcwd) + strlen(p) + 1 )))
 470                         fatal_error( "out of memory\n" );
 471                     sprintf( path, "%s/%s", oldcwd, p );
 472                     p = path;
 473                 }
 474                 execl( p, "wineserver", NULL );
 475                 fatal_perror( "could not exec the server '%s'\n"
 476                               "    specified in the WINESERVER environment variable", p );
 477             }
 478
 479             /* first try the installation dir */
 480             execl( BINDIR "/wineserver", "wineserver", NULL );
 481
 482             /* now try the dir we were launched from */
 483             if (full_argv0)
 484             {
 485                 if (!(path = malloc( strlen(full_argv0) + 20 )))
 486                     fatal_error( "out of memory\n" );
 487                 if ((p = strrchr( strcpy( path, full_argv0 ), '/' )))
 488                 {
 489                     strcpy( p, "/wineserver" );
 490                     execl( path, "wineserver", NULL );
 491                 }
 492                 free(path);
 493             }
 494
 495             /* finally try the path */
 496             execlp( "wineserver", "wineserver", NULL );
 497             fatal_error( "could not exec wineserver\n" );
 498         }
 499         started = 1;
 500         waitpid( pid, &status, 0 );
 501         status = WIFEXITED(status) ? WEXITSTATUS(status) : 1;
 502         if (status) exit(status);  /* server failed */
 503     }
 504 }
 505
 506 /***********************************************************************
 507  *           server_connect
 508  *
 509  * Attempt to connect to an existing server socket.
 510  * We need to be in the server directory already.
 511  */
 512 static int server_connect( const char *oldcwd, const char *serverdir )
 513 {
 514     struct sockaddr_un addr;
 515     struct stat st;
 516     int s, slen, retry;
 517
 518     /* chdir to the server directory */
 519     if (chdir( serverdir ) == -1)
 520     {
 521         if (errno != ENOENT) fatal_perror( "chdir to %s", serverdir );
 522         start_server( "." );
 523         if (chdir( serverdir ) == -1) fatal_perror( "chdir to %s", serverdir );
 524     }
 525
 526     /* make sure we are at the right place */
 527     if (stat( ".", &st ) == -1) fatal_perror( "stat %s", serverdir );
 528     if (st.st_uid != getuid()) fatal_error( "'%s' is not owned by you\n", serverdir );
 529     if (st.st_mode & 077) fatal_error( "'%s' must not be accessible by other users\n", serverdir );
 530
 531     for (retry = 0; retry < 3; retry++)
 532     {
 533         /* if not the first try, wait a bit to leave the server time to exit */
 534         if (retry) usleep( 100000 * retry * retry );
 535
 536         /* check for an existing socket */
 537         if (lstat( SOCKETNAME, &st ) == -1)
 538         {
 539             if (errno != ENOENT) fatal_perror( "lstat %s/%s", serverdir, SOCKETNAME );
 540             start_server( oldcwd );
 541             if (lstat( SOCKETNAME, &st ) == -1) fatal_perror( "lstat %s/%s", serverdir, SOCKETNAME );
 542         }
 543
 544         /* make sure the socket is sane (ISFIFO needed for Solaris) */
 545         if (!S_ISSOCK(st.st_mode) && !S_ISFIFO(st.st_mode))
 546             fatal_error( "'%s/%s' is not a socket\n", serverdir, SOCKETNAME );
 547         if (st.st_uid != getuid())
 548             fatal_error( "'%s/%s' is not owned by you\n", serverdir, SOCKETNAME );
 549
 550         /* try to connect to it */
 551         addr.sun_family = AF_UNIX;
 552         strcpy( addr.sun_path, SOCKETNAME );
 553         slen = sizeof(addr) - sizeof(addr.sun_path) + strlen(addr.sun_path) + 1;
 554 #ifdef HAVE_SOCKADDR_SUN_LEN
 555         addr.sun_len = slen;
 556 #endif
 557         if ((s = socket( AF_UNIX, SOCK_STREAM, 0 )) == -1) fatal_perror( "socket" );
 558         if (connect( s, (struct sockaddr *)&addr, slen ) != -1)
 559         {
 560             fcntl( s, F_SETFD, 1 ); /* set close on exec flag */
 561             return s;
 562         }
 563         close( s );
 564     }
 565     fatal_error( "file '%s/%s' exists,\n"
 566                  "   but I cannot connect to it; maybe the wineserver has crashed?\n"
 567                  "   If this is the case, you should remove this socket file and try again.\n",
 568                  serverdir, SOCKETNAME );
 569 }
 570
 571
 572 /***********************************************************************
 573  *           CLIENT_InitServer
 574  *
 575  * Start the server and create the initial socket pair.
 576  */
 577 void CLIENT_InitServer(void)
 578 {
 579     int size;
 580     char hostname[64];
 581     char *oldcwd, *serverdir;
 582     const char *configdir;
 583     handle_t dummy_handle;
 584
 585     /* retrieve the current directory */
 586     for (size = 512; ; size *= 2)
 587     {
 588         if (!(oldcwd = malloc( size ))) break;
 589         if (getcwd( oldcwd, size )) break;
 590         free( oldcwd );
 591         if (errno == ERANGE) continue;
 592         oldcwd = NULL;
 593         break;
 594     }
 595
 596     /* if argv[0] is a relative path, make it absolute */
 597     full_argv0 = argv0;
 598     if (oldcwd && argv0[0] != '/' && strchr( argv0, '/' ))
 599     {
 600         char *new_argv0 = malloc( strlen(oldcwd) + strlen(argv0) + 2 );
 601         if (new_argv0)
 602         {
 603             strcpy( new_argv0, oldcwd );
 604             strcat( new_argv0, "/" );
 605             strcat( new_argv0, argv0 );
 606             full_argv0 = new_argv0;
 607         }
 608     }
 609
 610     /* get the server directory name */
 611     if (gethostname( hostname, sizeof(hostname) ) == -1) fatal_perror( "gethostname" );
 612     configdir = get_config_dir();
 613     serverdir = malloc( strlen(configdir) + strlen(SERVERDIR) + strlen(hostname) + 1 );
 614     if (!serverdir) fatal_error( "out of memory\n" );
 615     strcpy( serverdir, configdir );
 616     strcat( serverdir, SERVERDIR );
 617     strcat( serverdir, hostname );
 618
 619     /* connect to the server */
 620     fd_socket = server_connect( oldcwd, serverdir );
 621
 622     /* switch back to the starting directory */
 623     if (oldcwd)
 624     {
 625         chdir( oldcwd );
 626         free( oldcwd );
 627     }
 628
 629     /* setup the signal mask */
 630     sigemptyset( &block_set );
 631     sigaddset( &block_set, SIGALRM );
 632     sigaddset( &block_set, SIGIO );
 633     sigaddset( &block_set, SIGINT );
 634     sigaddset( &block_set, SIGHUP );
 635
 636     /* receive the first thread request fd on the main socket */
 637     NtCurrentTeb()->request_fd = receive_fd( &dummy_handle );
 638
 639     CLIENT_InitThread();
 640 }
 641
 642
 643 /***********************************************************************
 644  *           CLIENT_InitThread
 645  *
 646  * Send an init thread request. Return 0 if OK.
 647  */
 648 void CLIENT_InitThread(void)
 649 {
 650     TEB *teb = NtCurrentTeb();
 651     int version, ret;
 652     int reply_pipe[2];
 653
 654     /* ignore SIGPIPE so that we get a EPIPE error instead  */
 655     signal( SIGPIPE, SIG_IGN );
 656
 657     /* create the server->client communication pipes */
 658     if (pipe( reply_pipe ) == -1) server_protocol_perror( "pipe" );
 659     if (pipe( teb->wait_fd ) == -1) server_protocol_perror( "pipe" );
 660     wine_server_send_fd( reply_pipe[1] );
 661     wine_server_send_fd( teb->wait_fd[1] );
 662     teb->reply_fd = reply_pipe[0];
 663
 664     /* set close on exec flag */
 665     fcntl( teb->reply_fd, F_SETFD, 1 );
 666     fcntl( teb->wait_fd[0], F_SETFD, 1 );
 667     fcntl( teb->wait_fd[1], F_SETFD, 1 );
 668
 669     SERVER_START_REQ( init_thread )
 670     {
 671         req->unix_pid    = getpid();
 672         req->teb         = teb;
 673         req->entry       = teb->entry_point;
 674         req->reply_fd    = reply_pipe[1];
 675         req->wait_fd     = teb->wait_fd[1];
 676         ret = wine_server_call( req );
 677         teb->pid = reply->pid;
 678         teb->tid = reply->tid;
 679         version  = reply->version;
 680         if (reply->boot) boot_thread_id = teb->tid;
 681         else if (boot_thread_id == teb->tid) boot_thread_id = 0;
 682         close( reply_pipe[1] );
 683     }
 684     SERVER_END_REQ;
 685
 686     if (ret) server_protocol_error( "init_thread failed with status %x\n", ret );
 687     if (version != SERVER_PROTOCOL_VERSION)
 688         server_protocol_error( "version mismatch %d/%d.\n"
 689                                "Your %s binary was not upgraded correctly,\n"
 690                                "or you have an older one somewhere in your PATH.\n"
 691                                "Or maybe the wrong wineserver is still running?\n",
 692                                version, SERVER_PROTOCOL_VERSION,
 693                                (version > SERVER_PROTOCOL_VERSION) ? "wine" : "wineserver" );
 694 }
 695
 696
 697 /***********************************************************************
 698  *           CLIENT_BootDone
 699  *
 700  * Signal that we have finished booting, and set debug level.
 701  */
 702 void CLIENT_BootDone( int debug_level )
 703 {
 704     SERVER_START_REQ( boot_done )
 705     {
 706         req->debug_level = debug_level;
 707         wine_server_call( req );
 708     }
 709     SERVER_END_REQ;
 710 }
 711
 712
 713 /***********************************************************************
 714  *           CLIENT_IsBootThread
 715  *
 716  * Return TRUE if current thread is the boot thread.
 717  */
 718 int CLIENT_IsBootThread(void)
 719 {
 720     return (GetCurrentThreadId() == (DWORD)boot_thread_id);
 721 }