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 <signal.h>
  29 #include <stdio.h>
  30 #include <string.h>
  31 #include <sys/types.h>
  32 #ifdef HAVE_SYS_SOCKET_H
  33 # include <sys/socket.h>
  34 #endif
  35 #ifdef HAVE_SYS_WAIT_H
  36 #include <sys/wait.h>
  37 #endif
  38 #include <sys/un.h>
  39 #ifdef HAVE_SYS_MMAN_H
  40 #include <sys/mman.h>
  41 #endif
  42 #include <sys/stat.h>
  43 #include <sys/uio.h>
  44 #ifdef HAVE_UNISTD_H
  45 # include <unistd.h>
  46 #endif
  47 #include <stdarg.h>
  48
  49 #include "thread.h"
  50 #include "wine/library.h"
  51 #include "wine/server.h"
  52 #include "winerror.h"
  53 #include "options.h"
  54
  55 /* Some versions of glibc don't define this */
  56 #ifndef SCM_RIGHTS
  57 #define SCM_RIGHTS 1
  58 #endif
  59
  60 #define SOCKETNAME "socket"        /* name of the socket file */
  61 #define LOCKNAME   "lock"          /* name of the lock file */
  62
  63 #ifndef HAVE_MSGHDR_ACCRIGHTS
  64 /* data structure used to pass an fd with sendmsg/recvmsg */
  65 struct cmsg_fd
  66 {
  67     int len;   /* sizeof structure */
  68     int level; /* SOL_SOCKET */
  69     int type;  /* SCM_RIGHTS */
  70     int fd;    /* fd to pass */
  71 };
  72 #endif  /* HAVE_MSGHDR_ACCRIGHTS */
  73
  74 static DWORD boot_thread_id;
  75 static sigset_t block_set;  /* signals to block during server calls */
  76 static int fd_socket;  /* socket to exchange file descriptors with the server */
  77
  78 #ifdef __GNUC__
  79 static void fatal_error( const char *err, ... ) __attribute__((noreturn, format(printf,1,2)));
  80 static void fatal_perror( const char *err, ... ) __attribute__((noreturn, format(printf,1,2)));
  81 static void server_connect_error( const char *serverdir ) __attribute__((noreturn));
  82 #endif
  83
  84 /* die on a fatal error; use only during initialization */
  85 static void fatal_error( const char *err, ... )
  86 {
  87     va_list args;
  88
  89     va_start( args, err );
  90     fprintf( stderr, "wine: " );
  91     vfprintf( stderr, err, args );
  92     va_end( args );
  93     exit(1);
  94 }
  95
  96 /* die on a fatal error; use only during initialization */
  97 static void fatal_perror( const char *err, ... )
  98 {
  99     va_list args;
 100
 101     va_start( args, err );
 102     fprintf( stderr, "wine: " );
 103     vfprintf( stderr, err, args );
 104     perror( " " );
 105     va_end( args );
 106     exit(1);
 107 }
 108
 109 /***********************************************************************
 110  *           server_protocol_error
 111  */
 112 void server_protocol_error( const char *err, ... )
 113 {
 114     va_list args;
 115
 116     va_start( args, err );
 117     fprintf( stderr, "wine client error:%lx: ", NtCurrentTeb()->tid );
 118     vfprintf( stderr, err, args );
 119     va_end( args );
 120     SYSDEPS_AbortThread(1);
 121 }
 122
 123
 124 /***********************************************************************
 125  *           server_protocol_perror
 126  */
 127 void server_protocol_perror( const char *err )
 128 {
 129     fprintf( stderr, "wine client error:%lx: ", NtCurrentTeb()->tid );
 130     perror( err );
 131     SYSDEPS_AbortThread(1);
 132 }
 133
 134
 135 /***********************************************************************
 136  *           send_request
 137  *
 138  * Send a request to the server.
 139  */
 140 static void send_request( const struct __server_request_info *req )
 141 {
 142     int i, ret;
 143
 144     if (!req->u.req.request_header.request_size)
 145     {
 146         if ((ret = write( NtCurrentTeb()->request_fd, &req->u.req,
 147                           sizeof(req->u.req) )) == sizeof(req->u.req)) return;
 148
 149     }
 150     else
 151     {
 152         struct iovec vec[__SERVER_MAX_DATA+1];
 153
 154         vec[0].iov_base = (void *)&req->u.req;
 155         vec[0].iov_len = sizeof(req->u.req);
 156         for (i = 0; i < req->data_count; i++)
 157         {
 158             vec[i+1].iov_base = (void *)req->data[i].ptr;
 159             vec[i+1].iov_len = req->data[i].size;
 160         }
 161         if ((ret = writev( NtCurrentTeb()->request_fd, vec, i+1 )) ==
 162             req->u.req.request_header.request_size + sizeof(req->u.req)) return;
 163     }
 164
 165     if (ret >= 0) server_protocol_error( "partial write %d\n", ret );
 166     if (errno == EPIPE) SYSDEPS_AbortThread(0);
 167     server_protocol_perror( "sendmsg" );
 168 }
 169
 170
 171 /***********************************************************************
 172  *           read_reply_data
 173  *
 174  * Read data from the reply buffer; helper for wait_reply.
 175  */
 176 static void read_reply_data( void *buffer, size_t size )
 177 {
 178     int ret;
 179
 180     for (;;)
 181     {
 182         if ((ret = read( NtCurrentTeb()->reply_fd, buffer, size )) > 0)
 183         {
 184             if (!(size -= ret)) return;
 185             buffer = (char *)buffer + ret;
 186             continue;
 187         }
 188         if (!ret) break;
 189         if (errno == EINTR) continue;
 190         if (errno == EPIPE) break;
 191         server_protocol_perror("read");
 192     }
 193     /* the server closed the connection; time to die... */
 194     SYSDEPS_AbortThread(0);
 195 }
 196
 197
 198 /***********************************************************************
 199  *           wait_reply
 200  *
 201  * Wait for a reply from the server.
 202  */
 203 inline static void wait_reply( struct __server_request_info *req )
 204 {
 205     read_reply_data( &req->u.reply, sizeof(req->u.reply) );
 206     if (req->u.reply.reply_header.reply_size)
 207         read_reply_data( req->reply_data, req->u.reply.reply_header.reply_size );
 208 }
 209
 210
 211 /***********************************************************************
 212  *           wine_server_call (NTDLL.@)
 213  *
 214  * Perform a server call.
 215  */
 216 unsigned int wine_server_call( void *req_ptr )
 217 {
 218     struct __server_request_info * const req = req_ptr;
 219     sigset_t old_set;
 220
 221     memset( (char *)&req->u.req + req->size, 0, sizeof(req->u.req) - req->size );
 222     sigprocmask( SIG_BLOCK, &block_set, &old_set );
 223     send_request( req );
 224     wait_reply( req );
 225     sigprocmask( SIG_SETMASK, &old_set, NULL );
 226     return req->u.reply.reply_header.error;
 227 }
 228
 229
 230 /***********************************************************************
 231  *           wine_server_send_fd
 232  *
 233  * Send a file descriptor to the server.
 234  */
 235 void wine_server_send_fd( int fd )
 236 {
 237 #ifndef HAVE_MSGHDR_ACCRIGHTS
 238     struct cmsg_fd cmsg;
 239 #endif
 240     struct send_fd data;
 241     struct msghdr msghdr;
 242     struct iovec vec;
 243     int ret;
 244
 245     vec.iov_base = (void *)&data;
 246     vec.iov_len  = sizeof(data);
 247
 248     msghdr.msg_name    = NULL;
 249     msghdr.msg_namelen = 0;
 250     msghdr.msg_iov     = &vec;
 251     msghdr.msg_iovlen  = 1;
 252
 253 #ifdef HAVE_MSGHDR_ACCRIGHTS
 254     msghdr.msg_accrights    = (void *)&fd;
 255     msghdr.msg_accrightslen = sizeof(fd);
 256 #else  /* HAVE_MSGHDR_ACCRIGHTS */
 257     cmsg.len   = sizeof(cmsg);
 258     cmsg.level = SOL_SOCKET;
 259     cmsg.type  = SCM_RIGHTS;
 260     cmsg.fd    = fd;
 261     msghdr.msg_control    = &cmsg;
 262     msghdr.msg_controllen = sizeof(cmsg);
 263     msghdr.msg_flags      = 0;
 264 #endif  /* HAVE_MSGHDR_ACCRIGHTS */
 265
 266     data.tid = GetCurrentThreadId();
 267     data.fd  = fd;
 268
 269     for (;;)
 270     {
 271         if ((ret = sendmsg( fd_socket, &msghdr, 0 )) == sizeof(data)) return;
 272         if (ret >= 0) server_protocol_error( "partial write %d\n", ret );
 273         if (errno == EINTR) continue;
 274         if (errno == EPIPE) SYSDEPS_AbortThread(0);
 275         server_protocol_perror( "sendmsg" );
 276     }
 277 }
 278
 279
 280 /***********************************************************************
 281  *           receive_fd
 282  *
 283  * Receive a file descriptor passed from the server.
 284  */
 285 static int receive_fd( obj_handle_t *handle )
 286 {
 287     struct iovec vec;
 288     int ret, fd;
 289
 290 #ifdef HAVE_MSGHDR_ACCRIGHTS
 291     struct msghdr msghdr;
 292
 293     fd = -1;
 294     msghdr.msg_accrights    = (void *)&fd;
 295     msghdr.msg_accrightslen = sizeof(fd);
 296 #else  /* HAVE_MSGHDR_ACCRIGHTS */
 297     struct msghdr msghdr;
 298     struct cmsg_fd cmsg;
 299
 300     cmsg.len   = sizeof(cmsg);
 301     cmsg.level = SOL_SOCKET;
 302     cmsg.type  = SCM_RIGHTS;
 303     cmsg.fd    = -1;
 304     msghdr.msg_control    = &cmsg;
 305     msghdr.msg_controllen = sizeof(cmsg);
 306     msghdr.msg_flags      = 0;
 307 #endif  /* HAVE_MSGHDR_ACCRIGHTS */
 308
 309     msghdr.msg_name    = NULL;
 310     msghdr.msg_namelen = 0;
 311     msghdr.msg_iov     = &vec;
 312     msghdr.msg_iovlen  = 1;
 313     vec.iov_base = (void *)handle;
 314     vec.iov_len  = sizeof(*handle);
 315
 316     for (;;)
 317     {
 318         if ((ret = recvmsg( fd_socket, &msghdr, 0 )) > 0)
 319         {
 320 #ifndef HAVE_MSGHDR_ACCRIGHTS
 321             fd = cmsg.fd;
 322 #endif
 323             if (fd == -1) server_protocol_error( "no fd received for handle %d\n", *handle );
 324             fcntl( fd, F_SETFD, 1 ); /* set close on exec flag */
 325             return fd;
 326         }
 327         if (!ret) break;
 328         if (errno == EINTR) continue;
 329         if (errno == EPIPE) break;
 330         server_protocol_perror("recvmsg");
 331     }
 332     /* the server closed the connection; time to die... */
 333     SYSDEPS_AbortThread(0);
 334 }
 335
 336
 337 /***********************************************************************
 338  *           store_cached_fd
 339  *
 340  * Store the cached fd value for a given handle back into the server.
 341  * Returns the new fd, which can be different if there was already an
 342  * fd in the cache for that handle.
 343  */
 344 inline static int store_cached_fd( int fd, obj_handle_t handle )
 345 {
 346     SERVER_START_REQ( set_handle_info )
 347     {
 348         req->handle = handle;
 349         req->flags  = 0;
 350         req->mask   = 0;
 351         req->fd     = fd;
 352         if (!wine_server_call( req ))
 353         {
 354             if (reply->cur_fd != fd)
 355             {
 356                 /* someone was here before us */
 357                 close( fd );
 358                 fd = reply->cur_fd;
 359             }
 360         }
 361         else
 362         {
 363             close( fd );
 364             fd = -1;
 365         }
 366     }
 367     SERVER_END_REQ;
 368     return fd;
 369 }
 370
 371
 372 /***********************************************************************
 373  *           wine_server_fd_to_handle   (NTDLL.@)
 374  *
 375  * Allocate a file handle for a Unix fd.
 376  */
 377 int wine_server_fd_to_handle( int fd, unsigned int access, int inherit, obj_handle_t *handle )
 378 {
 379     int ret;
 380
 381     *handle = 0;
 382     wine_server_send_fd( fd );
 383
 384     SERVER_START_REQ( alloc_file_handle )
 385     {
 386         req->access  = access;
 387         req->inherit = inherit;
 388         req->fd      = fd;
 389         if (!(ret = wine_server_call( req ))) *handle = reply->handle;
 390     }
 391     SERVER_END_REQ;
 392     return ret;
 393 }
 394
 395
 396 /***********************************************************************
 397  *           wine_server_handle_to_fd   (NTDLL.@)
 398  *
 399  * Retrieve the Unix fd corresponding to a file handle.
 400  */
 401 int wine_server_handle_to_fd( obj_handle_t handle, unsigned int access, int *unix_fd,
 402                               enum fd_type *type, int *flags )
 403 {
 404     obj_handle_t fd_handle;
 405     int ret, fd = -1;
 406
 407     *unix_fd = -1;
 408     for (;;)
 409     {
 410         SERVER_START_REQ( get_handle_fd )
 411         {
 412             req->handle = handle;
 413             req->access = access;
 414             if (!(ret = wine_server_call( req ))) fd = reply->fd;
 415             if (type) *type = reply->type;
 416             if (flags) *flags = reply->flags;
 417         }
 418         SERVER_END_REQ;
 419         if (ret) return ret;
 420
 421         if (fd != -1) break;
 422
 423         /* it wasn't in the cache, get it from the server */
 424         fd = receive_fd( &fd_handle );
 425         /* and store it back into the cache */
 426         fd = store_cached_fd( fd, fd_handle );
 427
 428         if (fd_handle == handle) break;
 429         /* if we received a different handle this means there was
 430          * a race with another thread; we restart everything from
 431          * scratch in this case.
 432          */
 433     }
 434
 435     if ((fd != -1) && ((fd = dup(fd)) == -1)) return STATUS_TOO_MANY_OPENED_FILES;
 436     *unix_fd = fd;
 437     return STATUS_SUCCESS;
 438 }
 439
 440
 441 /***********************************************************************
 442  *           start_server
 443  *
 444  * Start a new wine server.
 445  */
 446 static void start_server( const char *oldcwd )
 447 {
 448     static int started;  /* we only try once */
 449     char *path, *p;
 450     if (!started)
 451     {
 452         int status;
 453         int pid = fork();
 454         if (pid == -1) fatal_perror( "fork" );
 455         if (!pid)
 456         {
 457             /* if server is explicitly specified, use this */
 458             if ((p = getenv("WINESERVER")))
 459             {
 460                 if (p[0] != '/' && oldcwd[0] == '/')  /* make it an absolute path */
 461                 {
 462                     if (!(path = malloc( strlen(oldcwd) + strlen(p) + 1 )))
 463                         fatal_error( "out of memory\n" );
 464                     sprintf( path, "%s/%s", oldcwd, p );
 465                     p = path;
 466                 }
 467                 execl( p, p, NULL );
 468                 fatal_perror( "could not exec the server '%s'\n"
 469                               "    specified in the WINESERVER environment variable", p );
 470             }
 471
 472             /* first try the installation dir */
 473             execl( BINDIR "/wineserver", "wineserver", NULL );
 474
 475             /* now try the dir we were launched from */
 476             if (full_argv0)
 477             {
 478                 if (!(path = malloc( strlen(full_argv0) + 20 )))
 479                     fatal_error( "out of memory\n" );
 480                 if ((p = strrchr( strcpy( path, full_argv0 ), '/' )))
 481                 {
 482                     strcpy( p, "/wineserver" );
 483                     execl( path, path, NULL );
 484                 }
 485                 free(path);
 486             }
 487
 488             /* finally try the path */
 489             execlp( "wineserver", "wineserver", NULL );
 490             fatal_error( "could not exec wineserver\n" );
 491         }
 492         waitpid( pid, &status, 0 );
 493         status = WIFEXITED(status) ? WEXITSTATUS(status) : 1;
 494         if (status == 2) return;  /* server lock held by someone else, will retry later */
 495         if (status) exit(status);  /* server failed */
 496         started = 1;
 497     }
 498 }
 499
 500
 501 /***********************************************************************
 502  *           server_connect_error
 503  *
 504  * Try to display a meaningful explanation of why we couldn't connect
 505  * to the server.
 506  */
 507 static void server_connect_error( const char *serverdir )
 508 {
 509     int fd;
 510     struct flock fl;
 511
 512     if ((fd = open( LOCKNAME, O_WRONLY )) == -1)
 513         fatal_error( "for some mysterious reason, the wine server never started.\n" );
 514
 515     fl.l_type   = F_WRLCK;
 516     fl.l_whence = SEEK_SET;
 517     fl.l_start  = 0;
 518     fl.l_len    = 1;
 519     if (fcntl( fd, F_GETLK, &fl ) != -1)
 520     {
 521         if (fl.l_type == F_WRLCK)  /* the file is locked */
 522             fatal_error( "a wine server seems to be running, but I cannot connect to it.\n"
 523                          "   You probably need to kill that process (it might be pid %d).\n",
 524                          (int)fl.l_pid );
 525         fatal_error( "for some mysterious reason, the wine server failed to run.\n" );
 526     }
 527     fatal_error( "the file system of '%s' doesn't support locks,\n"
 528           "   and there is a 'socket' file in that directory that prevents wine from starting.\n"
 529           "   You should make sure no wine server is running, remove that file and try again.\n",
 530                  serverdir );
 531 }
 532
 533
 534 /***********************************************************************
 535  *           server_connect
 536  *
 537  * Attempt to connect to an existing server socket.
 538  * We need to be in the server directory already.
 539  */
 540 static int server_connect( const char *oldcwd, const char *serverdir )
 541 {
 542     struct sockaddr_un addr;
 543     struct stat st;
 544     int s, slen, retry;
 545
 546     /* chdir to the server directory */
 547     if (chdir( serverdir ) == -1)
 548     {
 549         if (errno != ENOENT) fatal_perror( "chdir to %s", serverdir );
 550         start_server( "." );
 551         if (chdir( serverdir ) == -1) fatal_perror( "chdir to %s", serverdir );
 552     }
 553
 554     /* make sure we are at the right place */
 555     if (stat( ".", &st ) == -1) fatal_perror( "stat %s", serverdir );
 556     if (st.st_uid != getuid()) fatal_error( "'%s' is not owned by you\n", serverdir );
 557     if (st.st_mode & 077) fatal_error( "'%s' must not be accessible by other users\n", serverdir );
 558
 559     for (retry = 0; retry < 6; retry++)
 560     {
 561         /* if not the first try, wait a bit to leave the previous server time to exit */
 562         if (retry)
 563         {
 564             usleep( 100000 * retry * retry );
 565             start_server( oldcwd );
 566             if (lstat( SOCKETNAME, &st ) == -1) continue;  /* still no socket, wait a bit more */
 567         }
 568         else if (lstat( SOCKETNAME, &st ) == -1) /* check for an already existing socket */
 569         {
 570             if (errno != ENOENT) fatal_perror( "lstat %s/%s", serverdir, SOCKETNAME );
 571             start_server( oldcwd );
 572             if (lstat( SOCKETNAME, &st ) == -1) continue;  /* still no socket, wait a bit more */
 573         }
 574
 575         /* make sure the socket is sane (ISFIFO needed for Solaris) */
 576         if (!S_ISSOCK(st.st_mode) && !S_ISFIFO(st.st_mode))
 577             fatal_error( "'%s/%s' is not a socket\n", serverdir, SOCKETNAME );
 578         if (st.st_uid != getuid())
 579             fatal_error( "'%s/%s' is not owned by you\n", serverdir, SOCKETNAME );
 580
 581         /* try to connect to it */
 582         addr.sun_family = AF_UNIX;
 583         strcpy( addr.sun_path, SOCKETNAME );
 584         slen = sizeof(addr) - sizeof(addr.sun_path) + strlen(addr.sun_path) + 1;
 585 #ifdef HAVE_SOCKADDR_SUN_LEN
 586         addr.sun_len = slen;
 587 #endif
 588         if ((s = socket( AF_UNIX, SOCK_STREAM, 0 )) == -1) fatal_perror( "socket" );
 589         if (connect( s, (struct sockaddr *)&addr, slen ) != -1)
 590         {
 591             fcntl( s, F_SETFD, 1 ); /* set close on exec flag */
 592             return s;
 593         }
 594         close( s );
 595     }
 596     server_connect_error( serverdir );
 597 }
 598
 599
 600 /***********************************************************************
 601  *           CLIENT_InitServer
 602  *
 603  * Start the server and create the initial socket pair.
 604  */
 605 void CLIENT_InitServer(void)
 606 {
 607     int size;
 608     char *oldcwd;
 609     obj_handle_t dummy_handle;
 610
 611     /* retrieve the current directory */
 612     for (size = 512; ; size *= 2)
 613     {
 614         if (!(oldcwd = malloc( size ))) break;
 615         if (getcwd( oldcwd, size )) break;
 616         free( oldcwd );
 617         if (errno == ERANGE) continue;
 618         oldcwd = NULL;
 619         break;
 620     }
 621
 622     /* if argv[0] is a relative path, make it absolute */
 623     full_argv0 = argv0;
 624     if (oldcwd && argv0[0] != '/' && strchr( argv0, '/' ))
 625     {
 626         char *new_argv0 = malloc( strlen(oldcwd) + strlen(argv0) + 2 );
 627         if (new_argv0)
 628         {
 629             strcpy( new_argv0, oldcwd );
 630             strcat( new_argv0, "/" );
 631             strcat( new_argv0, argv0 );
 632             full_argv0 = new_argv0;
 633         }
 634     }
 635
 636     /* connect to the server */
 637     fd_socket = server_connect( oldcwd, wine_get_server_dir() );
 638
 639     /* switch back to the starting directory */
 640     if (oldcwd)
 641     {
 642         chdir( oldcwd );
 643         free( oldcwd );
 644     }
 645
 646     /* setup the signal mask */
 647     sigemptyset( &block_set );
 648     sigaddset( &block_set, SIGALRM );
 649     sigaddset( &block_set, SIGIO );
 650     sigaddset( &block_set, SIGINT );
 651     sigaddset( &block_set, SIGHUP );
 652
 653     /* receive the first thread request fd on the main socket */
 654     NtCurrentTeb()->request_fd = receive_fd( &dummy_handle );
 655
 656     CLIENT_InitThread();
 657 }
 658
 659
 660 /***********************************************************************
 661  *           CLIENT_InitThread
 662  *
 663  * Send an init thread request. Return 0 if OK.
 664  */
 665 void CLIENT_InitThread(void)
 666 {
 667     TEB *teb = NtCurrentTeb();
 668     int version, ret;
 669     int reply_pipe[2];
 670
 671     /* ignore SIGPIPE so that we get a EPIPE error instead  */
 672     signal( SIGPIPE, SIG_IGN );
 673     /* automatic child reaping to avoid zombies */
 674     signal( SIGCHLD, SIG_IGN );
 675
 676     /* create the server->client communication pipes */
 677     if (pipe( reply_pipe ) == -1) server_protocol_perror( "pipe" );
 678     if (pipe( teb->wait_fd ) == -1) server_protocol_perror( "pipe" );
 679     wine_server_send_fd( reply_pipe[1] );
 680     wine_server_send_fd( teb->wait_fd[1] );
 681     teb->reply_fd = reply_pipe[0];
 682     close( reply_pipe[1] );
 683
 684     /* set close on exec flag */
 685     fcntl( teb->reply_fd, F_SETFD, 1 );
 686     fcntl( teb->wait_fd[0], F_SETFD, 1 );
 687     fcntl( teb->wait_fd[1], F_SETFD, 1 );
 688
 689     SERVER_START_REQ( init_thread )
 690     {
 691         req->unix_pid    = getpid();
 692         req->teb         = teb;
 693         req->entry       = teb->entry_point;
 694         req->reply_fd    = reply_pipe[1];
 695         req->wait_fd     = teb->wait_fd[1];
 696         ret = wine_server_call( req );
 697         teb->pid = reply->pid;
 698         teb->tid = reply->tid;
 699         version  = reply->version;
 700         if (reply->boot) boot_thread_id = teb->tid;
 701         else if (boot_thread_id == teb->tid) boot_thread_id = 0;
 702     }
 703     SERVER_END_REQ;
 704
 705     if (ret) server_protocol_error( "init_thread failed with status %x\n", ret );
 706     if (version != SERVER_PROTOCOL_VERSION)
 707         server_protocol_error( "version mismatch %d/%d.\n"
 708                                "Your %s binary was not upgraded correctly,\n"
 709                                "or you have an older one somewhere in your PATH.\n"
 710                                "Or maybe the wrong wineserver is still running?\n",
 711                                version, SERVER_PROTOCOL_VERSION,
 712                                (version > SERVER_PROTOCOL_VERSION) ? "wine" : "wineserver" );
 713 }
 714
 715
 716 /***********************************************************************
 717  *           CLIENT_BootDone
 718  *
 719  * Signal that we have finished booting, and set debug level.
 720  */
 721 void CLIENT_BootDone( int debug_level )
 722 {
 723     SERVER_START_REQ( boot_done )
 724     {
 725         req->debug_level = debug_level;
 726         wine_server_call( req );
 727     }
 728     SERVER_END_REQ;
 729 }
 730
 731
 732 /***********************************************************************
 733  *           CLIENT_IsBootThread
 734  *
 735  * Return TRUE if current thread is the boot thread.
 736  */
 737 int CLIENT_IsBootThread(void)
 738 {
 739     return (GetCurrentThreadId() == (DWORD)boot_thread_id);
 740 }