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( obj_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, obj_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_fd_to_handle   (NTDLL.@)
 369  *
 370  * Allocate a file handle for a Unix fd.
 371  */
 372 int wine_server_fd_to_handle( int fd, unsigned int access, int inherit, obj_handle_t *handle )
 373 {
 374     int ret;
 375
 376     *handle = 0;
 377     wine_server_send_fd( fd );
 378
 379     SERVER_START_REQ( alloc_file_handle )
 380     {
 381         req->access  = access;
 382         req->inherit = inherit;
 383         req->fd      = fd;
 384         if (!(ret = wine_server_call( req ))) *handle = reply->handle;
 385     }
 386     SERVER_END_REQ;
 387     return ret;
 388 }
 389
 390
 391 /***********************************************************************
 392  *           wine_server_handle_to_fd   (NTDLL.@)
 393  *
 394  * Retrieve the Unix fd corresponding to a file handle.
 395  */
 396 int wine_server_handle_to_fd( obj_handle_t handle, unsigned int access, int *unix_fd,
 397                               enum fd_type *type, int *flags )
 398 {
 399     obj_handle_t fd_handle;
 400     int ret, fd = -1;
 401
 402     *unix_fd = -1;
 403     for (;;)
 404     {
 405         SERVER_START_REQ( get_handle_fd )
 406         {
 407             req->handle = handle;
 408             req->access = access;
 409             if (!(ret = wine_server_call( req ))) fd = reply->fd;
 410             if (type) *type = reply->type;
 411             if (flags) *flags = reply->flags;
 412         }
 413         SERVER_END_REQ;
 414         if (ret) return ret;
 415
 416         if (fd != -1) break;
 417
 418         /* it wasn't in the cache, get it from the server */
 419         fd = receive_fd( &fd_handle );
 420         /* and store it back into the cache */
 421         fd = store_cached_fd( fd, fd_handle );
 422
 423         if (fd_handle == handle) break;
 424         /* if we received a different handle this means there was
 425          * a race with another thread; we restart everything from
 426          * scratch in this case.
 427          */
 428     }
 429
 430     if ((fd != -1) && ((fd = dup(fd)) == -1)) return STATUS_TOO_MANY_OPENED_FILES;
 431     *unix_fd = fd;
 432     return STATUS_SUCCESS;
 433 }
 434
 435
 436 /***********************************************************************
 437  *           get_config_dir
 438  *
 439  * Return the configuration directory ($WINEPREFIX or $HOME/.wine)
 440  */
 441 const char *get_config_dir(void)
 442 {
 443     static char *confdir;
 444     if (!confdir)
 445     {
 446         const char *prefix = getenv( "WINEPREFIX" );
 447         if (prefix)
 448         {
 449             int len = strlen(prefix);
 450             if (!(confdir = strdup( prefix ))) fatal_error( "out of memory\n" );
 451             if (len > 1 && confdir[len-1] == '/') confdir[len-1] = 0;
 452         }
 453         else
 454         {
 455             const char *home = getenv( "HOME" );
 456             if (!home)
 457             {
 458                 struct passwd *pwd = getpwuid( getuid() );
 459                 if (!pwd) fatal_error( "could not find your home directory\n" );
 460                 home = pwd->pw_dir;
 461             }
 462             if (!(confdir = malloc( strlen(home) + strlen(CONFDIR) + 1 )))
 463                 fatal_error( "out of memory\n" );
 464             strcpy( confdir, home );
 465             strcat( confdir, CONFDIR );
 466         }
 467     }
 468     return confdir;
 469 }
 470
 471
 472 /***********************************************************************
 473  *           start_server
 474  *
 475  * Start a new wine server.
 476  */
 477 static void start_server( const char *oldcwd )
 478 {
 479     static int started;  /* we only try once */
 480     char *path, *p;
 481     if (!started)
 482     {
 483         int status;
 484         int pid = fork();
 485         if (pid == -1) fatal_perror( "fork" );
 486         if (!pid)
 487         {
 488             /* if server is explicitly specified, use this */
 489             if ((p = getenv("WINESERVER")))
 490             {
 491                 if (p[0] != '/' && oldcwd[0] == '/')  /* make it an absolute path */
 492                 {
 493                     if (!(path = malloc( strlen(oldcwd) + strlen(p) + 1 )))
 494                         fatal_error( "out of memory\n" );
 495                     sprintf( path, "%s/%s", oldcwd, p );
 496                     p = path;
 497                 }
 498                 execl( p, "wineserver", NULL );
 499                 fatal_perror( "could not exec the server '%s'\n"
 500                               "    specified in the WINESERVER environment variable", p );
 501             }
 502
 503             /* first try the installation dir */
 504             execl( BINDIR "/wineserver", "wineserver", NULL );
 505
 506             /* now try the dir we were launched from */
 507             if (full_argv0)
 508             {
 509                 if (!(path = malloc( strlen(full_argv0) + 20 )))
 510                     fatal_error( "out of memory\n" );
 511                 if ((p = strrchr( strcpy( path, full_argv0 ), '/' )))
 512                 {
 513                     strcpy( p, "/wineserver" );
 514                     execl( path, "wineserver", NULL );
 515                 }
 516                 free(path);
 517             }
 518
 519             /* finally try the path */
 520             execlp( "wineserver", "wineserver", NULL );
 521             fatal_error( "could not exec wineserver\n" );
 522         }
 523         started = 1;
 524         waitpid( pid, &status, 0 );
 525         status = WIFEXITED(status) ? WEXITSTATUS(status) : 1;
 526         if (status) exit(status);  /* server failed */
 527     }
 528 }
 529
 530 /***********************************************************************
 531  *           server_connect
 532  *
 533  * Attempt to connect to an existing server socket.
 534  * We need to be in the server directory already.
 535  */
 536 static int server_connect( const char *oldcwd, const char *serverdir )
 537 {
 538     struct sockaddr_un addr;
 539     struct stat st;
 540     int s, slen, retry;
 541
 542     /* chdir to the server directory */
 543     if (chdir( serverdir ) == -1)
 544     {
 545         if (errno != ENOENT) fatal_perror( "chdir to %s", serverdir );
 546         start_server( "." );
 547         if (chdir( serverdir ) == -1) fatal_perror( "chdir to %s", serverdir );
 548     }
 549
 550     /* make sure we are at the right place */
 551     if (stat( ".", &st ) == -1) fatal_perror( "stat %s", serverdir );
 552     if (st.st_uid != getuid()) fatal_error( "'%s' is not owned by you\n", serverdir );
 553     if (st.st_mode & 077) fatal_error( "'%s' must not be accessible by other users\n", serverdir );
 554
 555     for (retry = 0; retry < 3; retry++)
 556     {
 557         /* if not the first try, wait a bit to leave the server time to exit */
 558         if (retry) usleep( 100000 * retry * retry );
 559
 560         /* check for an existing socket */
 561         if (lstat( SOCKETNAME, &st ) == -1)
 562         {
 563             if (errno != ENOENT) fatal_perror( "lstat %s/%s", serverdir, SOCKETNAME );
 564             start_server( oldcwd );
 565             if (lstat( SOCKETNAME, &st ) == -1) fatal_perror( "lstat %s/%s", serverdir, SOCKETNAME );
 566         }
 567
 568         /* make sure the socket is sane (ISFIFO needed for Solaris) */
 569         if (!S_ISSOCK(st.st_mode) && !S_ISFIFO(st.st_mode))
 570             fatal_error( "'%s/%s' is not a socket\n", serverdir, SOCKETNAME );
 571         if (st.st_uid != getuid())
 572             fatal_error( "'%s/%s' is not owned by you\n", serverdir, SOCKETNAME );
 573
 574         /* try to connect to it */
 575         addr.sun_family = AF_UNIX;
 576         strcpy( addr.sun_path, SOCKETNAME );
 577         slen = sizeof(addr) - sizeof(addr.sun_path) + strlen(addr.sun_path) + 1;
 578 #ifdef HAVE_SOCKADDR_SUN_LEN
 579         addr.sun_len = slen;
 580 #endif
 581         if ((s = socket( AF_UNIX, SOCK_STREAM, 0 )) == -1) fatal_perror( "socket" );
 582         if (connect( s, (struct sockaddr *)&addr, slen ) != -1)
 583         {
 584             fcntl( s, F_SETFD, 1 ); /* set close on exec flag */
 585             return s;
 586         }
 587         close( s );
 588     }
 589     fatal_error( "file '%s/%s' exists,\n"
 590                  "   but I cannot connect to it; maybe the wineserver has crashed?\n"
 591                  "   If this is the case, you should remove this socket file and try again.\n",
 592                  serverdir, SOCKETNAME );
 593 }
 594
 595
 596 /***********************************************************************
 597  *           CLIENT_InitServer
 598  *
 599  * Start the server and create the initial socket pair.
 600  */
 601 void CLIENT_InitServer(void)
 602 {
 603     int size;
 604     char hostname[64];
 605     char *oldcwd, *serverdir;
 606     const char *configdir;
 607     obj_handle_t dummy_handle;
 608
 609     /* retrieve the current directory */
 610     for (size = 512; ; size *= 2)
 611     {
 612         if (!(oldcwd = malloc( size ))) break;
 613         if (getcwd( oldcwd, size )) break;
 614         free( oldcwd );
 615         if (errno == ERANGE) continue;
 616         oldcwd = NULL;
 617         break;
 618     }
 619
 620     /* if argv[0] is a relative path, make it absolute */
 621     full_argv0 = argv0;
 622     if (oldcwd && argv0[0] != '/' && strchr( argv0, '/' ))
 623     {
 624         char *new_argv0 = malloc( strlen(oldcwd) + strlen(argv0) + 2 );
 625         if (new_argv0)
 626         {
 627             strcpy( new_argv0, oldcwd );
 628             strcat( new_argv0, "/" );
 629             strcat( new_argv0, argv0 );
 630             full_argv0 = new_argv0;
 631         }
 632     }
 633
 634     /* get the server directory name */
 635     if (gethostname( hostname, sizeof(hostname) ) == -1) fatal_perror( "gethostname" );
 636     configdir = get_config_dir();
 637     serverdir = malloc( strlen(configdir) + strlen(SERVERDIR) + strlen(hostname) + 1 );
 638     if (!serverdir) fatal_error( "out of memory\n" );
 639     strcpy( serverdir, configdir );
 640     strcat( serverdir, SERVERDIR );
 641     strcat( serverdir, hostname );
 642
 643     /* connect to the server */
 644     fd_socket = server_connect( oldcwd, serverdir );
 645
 646     /* switch back to the starting directory */
 647     if (oldcwd)
 648     {
 649         chdir( oldcwd );
 650         free( oldcwd );
 651     }
 652
 653     /* setup the signal mask */
 654     sigemptyset( &block_set );
 655     sigaddset( &block_set, SIGALRM );
 656     sigaddset( &block_set, SIGIO );
 657     sigaddset( &block_set, SIGINT );
 658     sigaddset( &block_set, SIGHUP );
 659
 660     /* receive the first thread request fd on the main socket */
 661     NtCurrentTeb()->request_fd = receive_fd( &dummy_handle );
 662
 663     CLIENT_InitThread();
 664 }
 665
 666
 667 /***********************************************************************
 668  *           CLIENT_InitThread
 669  *
 670  * Send an init thread request. Return 0 if OK.
 671  */
 672 void CLIENT_InitThread(void)
 673 {
 674     TEB *teb = NtCurrentTeb();
 675     int version, ret;
 676     int reply_pipe[2];
 677
 678     /* ignore SIGPIPE so that we get a EPIPE error instead  */
 679     signal( SIGPIPE, SIG_IGN );
 680
 681     /* create the server->client communication pipes */
 682     if (pipe( reply_pipe ) == -1) server_protocol_perror( "pipe" );
 683     if (pipe( teb->wait_fd ) == -1) server_protocol_perror( "pipe" );
 684     wine_server_send_fd( reply_pipe[1] );
 685     wine_server_send_fd( teb->wait_fd[1] );
 686     teb->reply_fd = reply_pipe[0];
 687
 688     /* set close on exec flag */
 689     fcntl( teb->reply_fd, F_SETFD, 1 );
 690     fcntl( teb->wait_fd[0], F_SETFD, 1 );
 691     fcntl( teb->wait_fd[1], F_SETFD, 1 );
 692
 693     SERVER_START_REQ( init_thread )
 694     {
 695         req->unix_pid    = getpid();
 696         req->teb         = teb;
 697         req->entry       = teb->entry_point;
 698         req->reply_fd    = reply_pipe[1];
 699         req->wait_fd     = teb->wait_fd[1];
 700         ret = wine_server_call( req );
 701         teb->pid = reply->pid;
 702         teb->tid = reply->tid;
 703         version  = reply->version;
 704         if (reply->boot) boot_thread_id = teb->tid;
 705         else if (boot_thread_id == teb->tid) boot_thread_id = 0;
 706         close( reply_pipe[1] );
 707     }
 708     SERVER_END_REQ;
 709
 710     if (ret) server_protocol_error( "init_thread failed with status %x\n", ret );
 711     if (version != SERVER_PROTOCOL_VERSION)
 712         server_protocol_error( "version mismatch %d/%d.\n"
 713                                "Your %s binary was not upgraded correctly,\n"
 714                                "or you have an older one somewhere in your PATH.\n"
 715                                "Or maybe the wrong wineserver is still running?\n",
 716                                version, SERVER_PROTOCOL_VERSION,
 717                                (version > SERVER_PROTOCOL_VERSION) ? "wine" : "wineserver" );
 718 }
 719
 720
 721 /***********************************************************************
 722  *           CLIENT_BootDone
 723  *
 724  * Signal that we have finished booting, and set debug level.
 725  */
 726 void CLIENT_BootDone( int debug_level )
 727 {
 728     SERVER_START_REQ( boot_done )
 729     {
 730         req->debug_level = debug_level;
 731         wine_server_call( req );
 732     }
 733     SERVER_END_REQ;
 734 }
 735
 736
 737 /***********************************************************************
 738  *           CLIENT_IsBootThread
 739  *
 740  * Return TRUE if current thread is the boot thread.
 741  */
 742 int CLIENT_IsBootThread(void)
 743 {
 744     return (GetCurrentThreadId() == (DWORD)boot_thread_id);
 745 }