dlls/kernel32/tests/pipe.c

   1 /*
   2  * Unit tests for named pipe functions in Wine
   3  *
   4  * Copyright (c) 2002 Dan Kegel
   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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include <assert.h>
  22 #include <stdarg.h>
  23 #include <stdio.h>
  24 #include <time.h>
  25
  26 #include <windef.h>
  27 #include <winbase.h>
  28 #include <winsock.h>
  29 #include <wtypes.h>
  30 #include <winerror.h>
  31
  32 #include "wine/test.h"
  33
  34 #define PIPENAME "\\\\.\\PiPe\\tests_pipe.c"
  35
  36 #define NB_SERVER_LOOPS 8
  37
  38 static HANDLE alarm_event;
  39
  40 static void test_CreateNamedPipe(int pipemode)
  41 {
  42     HANDLE hnp;
  43     HANDLE hFile;
  44     static const char obuf[] = "Bit Bucket";
  45     static const char obuf2[] = "More bits";
  46     char ibuf[32], *pbuf;
  47     DWORD written;
  48     DWORD readden;
  49     DWORD avail;
  50     DWORD lpmode;
  51
  52     if (pipemode == PIPE_TYPE_BYTE)
  53         trace("test_CreateNamedPipe starting in byte mode\n");
  54     else
  55         trace("test_CreateNamedPipe starting in message mode\n");
  56     /* Bad parameter checks */
  57     hnp = CreateNamedPipe("not a named pipe", PIPE_ACCESS_DUPLEX, pipemode | PIPE_WAIT,
  58         /* nMaxInstances */ 1,
  59         /* nOutBufSize */ 1024,
  60         /* nInBufSize */ 1024,
  61         /* nDefaultWait */ NMPWAIT_USE_DEFAULT_WAIT,
  62         /* lpSecurityAttrib */ NULL);
  63
  64     if (hnp == INVALID_HANDLE_VALUE && GetLastError() == ERROR_CALL_NOT_IMPLEMENTED) {
  65         /* Is this the right way to notify user of skipped tests? */
  66         ok(hnp == INVALID_HANDLE_VALUE && GetLastError() == ERROR_CALL_NOT_IMPLEMENTED,
  67             "CreateNamedPipe not supported on this platform, skipping tests.\n");
  68         return;
  69     }
  70     ok(hnp == INVALID_HANDLE_VALUE && GetLastError() == ERROR_INVALID_NAME,
  71         "CreateNamedPipe should fail if name doesn't start with \\\\.\\pipe\n");
  72
  73     hnp = CreateNamedPipe(NULL,
  74         PIPE_ACCESS_DUPLEX, pipemode | PIPE_WAIT,
  75         1, 1024, 1024, NMPWAIT_USE_DEFAULT_WAIT, NULL);
  76     ok(hnp == INVALID_HANDLE_VALUE && GetLastError() == ERROR_PATH_NOT_FOUND,
  77         "CreateNamedPipe should fail if name is NULL\n");
  78
  79     hFile = CreateFileA(PIPENAME, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, 0);
  80     ok(hFile == INVALID_HANDLE_VALUE
  81         && GetLastError() == ERROR_FILE_NOT_FOUND,
  82         "connecting to nonexistent named pipe should fail with ERROR_FILE_NOT_FOUND\n");
  83
  84     /* Functional checks */
  85
  86     hnp = CreateNamedPipe(PIPENAME, PIPE_ACCESS_DUPLEX, pipemode | PIPE_WAIT,
  87         /* nMaxInstances */ 1,
  88         /* nOutBufSize */ 1024,
  89         /* nInBufSize */ 1024,
  90         /* nDefaultWait */ NMPWAIT_USE_DEFAULT_WAIT,
  91         /* lpSecurityAttrib */ NULL);
  92     ok(hnp != INVALID_HANDLE_VALUE, "CreateNamedPipe failed\n");
  93
  94     ok(WaitNamedPipeA(PIPENAME, 2000), "WaitNamedPipe failed (%08x)\n", GetLastError());
  95
  96     hFile = CreateFileA(PIPENAME, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, 0);
  97     ok(hFile != INVALID_HANDLE_VALUE, "CreateFile failed (%08x)\n", GetLastError());
  98
  99     /* don't try to do i/o if one side couldn't be opened, as it hangs */
 100     if (hFile != INVALID_HANDLE_VALUE) {
 101         HANDLE hFile2;
 102
 103         /* Make sure we can read and write a few bytes in both directions */
 104         memset(ibuf, 0, sizeof(ibuf));
 105         ok(WriteFile(hnp, obuf, sizeof(obuf), &written, NULL), "WriteFile\n");
 106         ok(written == sizeof(obuf), "write file len 1\n");
 107         ok(PeekNamedPipe(hFile, NULL, 0, NULL, &readden, NULL), "Peek\n");
 108         ok(readden == sizeof(obuf), "peek 1 got %d bytes\n", readden);
 109         ok(ReadFile(hFile, ibuf, sizeof(ibuf), &readden, NULL), "ReadFile\n");
 110         ok(readden == sizeof(obuf), "read 1 got %d bytes\n", readden);
 111         ok(memcmp(obuf, ibuf, written) == 0, "content 1 check\n");
 112
 113         memset(ibuf, 0, sizeof(ibuf));
 114         ok(WriteFile(hFile, obuf2, sizeof(obuf2), &written, NULL), "WriteFile\n");
 115         ok(written == sizeof(obuf2), "write file len 2\n");
 116         ok(PeekNamedPipe(hnp, NULL, 0, NULL, &readden, NULL), "Peek\n");
 117         ok(readden == sizeof(obuf2), "peek 2 got %d bytes\n", readden);
 118         ok(PeekNamedPipe(hnp, (LPVOID)1, 0, NULL, &readden, NULL), "Peek\n");
 119         ok(readden == sizeof(obuf2), "peek 2 got %d bytes\n", readden);
 120         ok(ReadFile(hnp, ibuf, sizeof(ibuf), &readden, NULL), "ReadFile\n");
 121         ok(readden == sizeof(obuf2), "read 2 got %d bytes\n", readden);
 122         ok(memcmp(obuf2, ibuf, written) == 0, "content 2 check\n");
 123
 124         /* Test reading of multiple writes */
 125         memset(ibuf, 0, sizeof(ibuf));
 126         ok(WriteFile(hnp, obuf, sizeof(obuf), &written, NULL), "WriteFile3a\n");
 127         ok(written == sizeof(obuf), "write file len 3a\n");
 128         ok(WriteFile(hnp, obuf2, sizeof(obuf2), &written, NULL), " WriteFile3b\n");
 129         ok(written == sizeof(obuf2), "write file len 3b\n");
 130         ok(PeekNamedPipe(hFile, ibuf, sizeof(ibuf), &readden, &avail, NULL), "Peek3\n");
 131         if (pipemode == PIPE_TYPE_BYTE) {
 132             if (readden != sizeof(obuf))  /* Linux only returns the first message */
 133                 ok(readden == sizeof(obuf) + sizeof(obuf2), "peek3 got %d bytes\n", readden);
 134             else
 135                 todo_wine ok(readden == sizeof(obuf) + sizeof(obuf2), "peek3 got %d bytes\n", readden);
 136         }
 137         else
 138         {
 139             if (readden != sizeof(obuf) + sizeof(obuf2))  /* MacOS returns both messages */
 140                 ok(readden == sizeof(obuf), "peek3 got %d bytes\n", readden);
 141             else
 142                 todo_wine ok(readden == sizeof(obuf), "peek3 got %d bytes\n", readden);
 143         }
 144         if (avail != sizeof(obuf)) /* older Linux kernels only return the first write here */
 145             ok(avail == sizeof(obuf) + sizeof(obuf2), "peek3 got %d bytes available\n", avail);
 146         pbuf = ibuf;
 147         ok(memcmp(obuf, pbuf, sizeof(obuf)) == 0, "pipe content 3a check\n");
 148         if (pipemode == PIPE_TYPE_BYTE && readden >= sizeof(obuf)+sizeof(obuf2)) {
 149             pbuf += sizeof(obuf);
 150             ok(memcmp(obuf2, pbuf, sizeof(obuf2)) == 0, "pipe content 3b check\n");
 151         }
 152         ok(ReadFile(hFile, ibuf, sizeof(ibuf), &readden, NULL), "ReadFile\n");
 153         ok(readden == sizeof(obuf) + sizeof(obuf2), "read 3 got %d bytes\n", readden);
 154         pbuf = ibuf;
 155         ok(memcmp(obuf, pbuf, sizeof(obuf)) == 0, "content 3a check\n");
 156         pbuf += sizeof(obuf);
 157         ok(memcmp(obuf2, pbuf, sizeof(obuf2)) == 0, "content 3b check\n");
 158
 159         /* Multiple writes in the reverse direction */
 160         memset(ibuf, 0, sizeof(ibuf));
 161         ok(WriteFile(hFile, obuf, sizeof(obuf), &written, NULL), "WriteFile4a\n");
 162         ok(written == sizeof(obuf), "write file len 4a\n");
 163         ok(WriteFile(hFile, obuf2, sizeof(obuf2), &written, NULL), " WriteFile4b\n");
 164         ok(written == sizeof(obuf2), "write file len 4b\n");
 165         ok(PeekNamedPipe(hnp, ibuf, sizeof(ibuf), &readden, &avail, NULL), "Peek4\n");
 166         if (pipemode == PIPE_TYPE_BYTE) {
 167             if (readden != sizeof(obuf))  /* Linux only returns the first message */
 168                 /* should return all 23 bytes */
 169                 ok(readden == sizeof(obuf) + sizeof(obuf2), "peek4 got %d bytes\n", readden);
 170             else
 171                 todo_wine ok(readden == sizeof(obuf) + sizeof(obuf2), "peek4 got %d bytes\n", readden);
 172         }
 173         else
 174         {
 175             if (readden != sizeof(obuf) + sizeof(obuf2))  /* MacOS returns both messages */
 176                 ok(readden == sizeof(obuf), "peek4 got %d bytes\n", readden);
 177             else
 178                 todo_wine ok(readden == sizeof(obuf), "peek4 got %d bytes\n", readden);
 179         }
 180         if (avail != sizeof(obuf)) /* older Linux kernels only return the first write here */
 181             ok(avail == sizeof(obuf) + sizeof(obuf2), "peek4 got %d bytes available\n", avail);
 182         pbuf = ibuf;
 183         ok(memcmp(obuf, pbuf, sizeof(obuf)) == 0, "pipe content 4a check\n");
 184         if (pipemode == PIPE_TYPE_BYTE && readden >= sizeof(obuf)+sizeof(obuf2)) {
 185             pbuf += sizeof(obuf);
 186             ok(memcmp(obuf2, pbuf, sizeof(obuf2)) == 0, "pipe content 4b check\n");
 187         }
 188         ok(ReadFile(hnp, ibuf, sizeof(ibuf), &readden, NULL), "ReadFile\n");
 189         if (pipemode == PIPE_TYPE_BYTE) {
 190             ok(readden == sizeof(obuf) + sizeof(obuf2), "read 4 got %d bytes\n", readden);
 191         }
 192         else {
 193             todo_wine {
 194                 ok(readden == sizeof(obuf), "read 4 got %d bytes\n", readden);
 195             }
 196         }
 197         pbuf = ibuf;
 198         ok(memcmp(obuf, pbuf, sizeof(obuf)) == 0, "content 4a check\n");
 199         if (pipemode == PIPE_TYPE_BYTE) {
 200             pbuf += sizeof(obuf);
 201             ok(memcmp(obuf2, pbuf, sizeof(obuf2)) == 0, "content 4b check\n");
 202         }
 203
 204         /* Test reading of multiple writes after a mode change
 205           (CreateFile always creates a byte mode pipe) */
 206         lpmode = PIPE_READMODE_MESSAGE;
 207         if (pipemode == PIPE_TYPE_BYTE) {
 208             /* trying to change the client end of a byte pipe to message mode should fail */
 209             ok(!SetNamedPipeHandleState(hFile, &lpmode, NULL, NULL), "Change mode\n");
 210         }
 211         else {
 212             todo_wine {
 213                 ok(SetNamedPipeHandleState(hFile, &lpmode, NULL, NULL), "Change mode\n");
 214             }
 215
 216             memset(ibuf, 0, sizeof(ibuf));
 217             ok(WriteFile(hnp, obuf, sizeof(obuf), &written, NULL), "WriteFile5a\n");
 218             ok(written == sizeof(obuf), "write file len 3a\n");
 219             ok(WriteFile(hnp, obuf2, sizeof(obuf2), &written, NULL), " WriteFile5b\n");
 220             ok(written == sizeof(obuf2), "write file len 3b\n");
 221             ok(PeekNamedPipe(hFile, ibuf, sizeof(ibuf), &readden, &avail, NULL), "Peek5\n");
 222             if (readden != sizeof(obuf) + sizeof(obuf2))  /* MacOS returns both writes */
 223                 ok(readden == sizeof(obuf), "peek5 got %d bytes\n", readden);
 224             else
 225                 todo_wine ok(readden == sizeof(obuf), "peek5 got %d bytes\n", readden);
 226             if (avail != sizeof(obuf)) /* older Linux kernels only return the first write here */
 227                 ok(avail == sizeof(obuf) + sizeof(obuf2), "peek5 got %d bytes available\n", avail);
 228             else
 229                 todo_wine ok(avail == sizeof(obuf) + sizeof(obuf2), "peek5 got %d bytes available\n", avail);
 230             pbuf = ibuf;
 231             ok(memcmp(obuf, pbuf, sizeof(obuf)) == 0, "content 5a check\n");
 232             ok(ReadFile(hFile, ibuf, sizeof(ibuf), &readden, NULL), "ReadFile\n");
 233             todo_wine {
 234                 ok(readden == sizeof(obuf), "read 5 got %d bytes\n", readden);
 235             }
 236             pbuf = ibuf;
 237             ok(memcmp(obuf, pbuf, sizeof(obuf)) == 0, "content 5a check\n");
 238
 239             /* Multiple writes in the reverse direction */
 240             /* the write of obuf2 from write4 should still be in the buffer */
 241             ok(PeekNamedPipe(hnp, ibuf, sizeof(ibuf), &readden, &avail, NULL), "Peek6a\n");
 242             todo_wine {
 243                 ok(readden == sizeof(obuf2), "peek6a got %d bytes\n", readden);
 244                 ok(avail == sizeof(obuf2), "peek6a got %d bytes available\n", avail);
 245             }
 246             if (avail > 0) {
 247                 ok(ReadFile(hnp, ibuf, sizeof(ibuf), &readden, NULL), "ReadFile\n");
 248                 ok(readden == sizeof(obuf2), "read 6a got %d bytes\n", readden);
 249                 pbuf = ibuf;
 250                 ok(memcmp(obuf2, pbuf, sizeof(obuf2)) == 0, "content 6a check\n");
 251             }
 252             memset(ibuf, 0, sizeof(ibuf));
 253             ok(WriteFile(hFile, obuf, sizeof(obuf), &written, NULL), "WriteFile6a\n");
 254             ok(written == sizeof(obuf), "write file len 6a\n");
 255             ok(WriteFile(hFile, obuf2, sizeof(obuf2), &written, NULL), " WriteFile6b\n");
 256             ok(written == sizeof(obuf2), "write file len 6b\n");
 257             ok(PeekNamedPipe(hnp, ibuf, sizeof(ibuf), &readden, &avail, NULL), "Peek6\n");
 258             if (readden != sizeof(obuf) + sizeof(obuf2))  /* MacOS returns both writes */
 259                 ok(readden == sizeof(obuf), "peek6 got %d bytes\n", readden);
 260             else
 261                 todo_wine ok(readden == sizeof(obuf), "peek6 got %d bytes\n", readden);
 262             if (avail != sizeof(obuf)) /* older Linux kernels only return the first write here */
 263                 ok(avail == sizeof(obuf) + sizeof(obuf2), "peek6b got %d bytes available\n", avail);
 264             pbuf = ibuf;
 265             ok(memcmp(obuf, pbuf, sizeof(obuf)) == 0, "content 6a check\n");
 266             ok(ReadFile(hnp, ibuf, sizeof(ibuf), &readden, NULL), "ReadFile\n");
 267             todo_wine {
 268                 ok(readden == sizeof(obuf), "read 6b got %d bytes\n", readden);
 269             }
 270             pbuf = ibuf;
 271             ok(memcmp(obuf, pbuf, sizeof(obuf)) == 0, "content 6a check\n");
 272         }
 273
 274         /* Picky conformance tests */
 275
 276         /* Verify that you can't connect to pipe again
 277          * until server calls DisconnectNamedPipe+ConnectNamedPipe
 278          * or creates a new pipe
 279          * case 1: other client not yet closed
 280          */
 281         hFile2 = CreateFileA(PIPENAME, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, 0);
 282         ok(hFile2 == INVALID_HANDLE_VALUE,
 283             "connecting to named pipe after other client closes but before DisconnectNamedPipe should fail\n");
 284         ok(GetLastError() == ERROR_PIPE_BUSY,
 285             "connecting to named pipe before other client closes should fail with ERROR_PIPE_BUSY\n");
 286
 287         ok(CloseHandle(hFile), "CloseHandle\n");
 288
 289         /* case 2: other client already closed */
 290         hFile = CreateFileA(PIPENAME, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, 0);
 291         ok(hFile == INVALID_HANDLE_VALUE,
 292             "connecting to named pipe after other client closes but before DisconnectNamedPipe should fail\n");
 293         ok(GetLastError() == ERROR_PIPE_BUSY,
 294             "connecting to named pipe after other client closes but before DisconnectNamedPipe should fail with ERROR_PIPE_BUSY\n");
 295
 296         ok(DisconnectNamedPipe(hnp), "DisconnectNamedPipe\n");
 297
 298         /* case 3: server has called DisconnectNamedPipe but not ConnectNamed Pipe */
 299         hFile = CreateFileA(PIPENAME, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, 0);
 300         ok(hFile == INVALID_HANDLE_VALUE,
 301             "connecting to named pipe after other client closes but before DisconnectNamedPipe should fail\n");
 302         ok(GetLastError() == ERROR_PIPE_BUSY,
 303             "connecting to named pipe after other client closes but before ConnectNamedPipe should fail with ERROR_PIPE_BUSY\n");
 304
 305         /* to be complete, we'd call ConnectNamedPipe here and loop,
 306          * but by default that's blocking, so we'd either have
 307          * to turn on the uncommon nonblocking mode, or
 308          * use another thread.
 309          */
 310     }
 311
 312     ok(CloseHandle(hnp), "CloseHandle\n");
 313
 314     trace("test_CreateNamedPipe returning\n");
 315 }
 316
 317 static void test_CreateNamedPipe_instances_must_match(void)
 318 {
 319     HANDLE hnp, hnp2;
 320
 321     /* Check no mismatch */
 322     hnp = CreateNamedPipe(PIPENAME, PIPE_ACCESS_DUPLEX, PIPE_TYPE_BYTE | PIPE_WAIT,
 323         /* nMaxInstances */ 2,
 324         /* nOutBufSize */ 1024,
 325         /* nInBufSize */ 1024,
 326         /* nDefaultWait */ NMPWAIT_USE_DEFAULT_WAIT,
 327         /* lpSecurityAttrib */ NULL);
 328     ok(hnp != INVALID_HANDLE_VALUE, "CreateNamedPipe failed\n");
 329
 330     hnp2 = CreateNamedPipe(PIPENAME, PIPE_ACCESS_DUPLEX, PIPE_TYPE_BYTE | PIPE_WAIT,
 331         /* nMaxInstances */ 2,
 332         /* nOutBufSize */ 1024,
 333         /* nInBufSize */ 1024,
 334         /* nDefaultWait */ NMPWAIT_USE_DEFAULT_WAIT,
 335         /* lpSecurityAttrib */ NULL);
 336     ok(hnp2 != INVALID_HANDLE_VALUE, "CreateNamedPipe failed\n");
 337
 338     ok(CloseHandle(hnp), "CloseHandle\n");
 339     ok(CloseHandle(hnp2), "CloseHandle\n");
 340
 341     /* Check nMaxInstances */
 342     hnp = CreateNamedPipe(PIPENAME, PIPE_ACCESS_DUPLEX, PIPE_TYPE_BYTE | PIPE_WAIT,
 343         /* nMaxInstances */ 1,
 344         /* nOutBufSize */ 1024,
 345         /* nInBufSize */ 1024,
 346         /* nDefaultWait */ NMPWAIT_USE_DEFAULT_WAIT,
 347         /* lpSecurityAttrib */ NULL);
 348     ok(hnp != INVALID_HANDLE_VALUE, "CreateNamedPipe failed\n");
 349
 350     hnp2 = CreateNamedPipe(PIPENAME, PIPE_ACCESS_DUPLEX, PIPE_TYPE_BYTE | PIPE_WAIT,
 351         /* nMaxInstances */ 1,
 352         /* nOutBufSize */ 1024,
 353         /* nInBufSize */ 1024,
 354         /* nDefaultWait */ NMPWAIT_USE_DEFAULT_WAIT,
 355         /* lpSecurityAttrib */ NULL);
 356     ok(hnp2 == INVALID_HANDLE_VALUE
 357         && GetLastError() == ERROR_PIPE_BUSY, "nMaxInstances not obeyed\n");
 358
 359     ok(CloseHandle(hnp), "CloseHandle\n");
 360
 361     /* Check PIPE_ACCESS_* */
 362     hnp = CreateNamedPipe(PIPENAME, PIPE_ACCESS_DUPLEX, PIPE_TYPE_BYTE | PIPE_WAIT,
 363         /* nMaxInstances */ 2,
 364         /* nOutBufSize */ 1024,
 365         /* nInBufSize */ 1024,
 366         /* nDefaultWait */ NMPWAIT_USE_DEFAULT_WAIT,
 367         /* lpSecurityAttrib */ NULL);
 368     ok(hnp != INVALID_HANDLE_VALUE, "CreateNamedPipe failed\n");
 369
 370     hnp2 = CreateNamedPipe(PIPENAME, PIPE_ACCESS_INBOUND, PIPE_TYPE_BYTE | PIPE_WAIT,
 371         /* nMaxInstances */ 1,
 372         /* nOutBufSize */ 1024,
 373         /* nInBufSize */ 1024,
 374         /* nDefaultWait */ NMPWAIT_USE_DEFAULT_WAIT,
 375         /* lpSecurityAttrib */ NULL);
 376     ok(hnp2 == INVALID_HANDLE_VALUE
 377         && GetLastError() == ERROR_ACCESS_DENIED, "PIPE_ACCESS_* mismatch allowed\n");
 378
 379     ok(CloseHandle(hnp), "CloseHandle\n");
 380
 381     /* etc, etc */
 382 }
 383
 384 /** implementation of alarm() */
 385 static DWORD CALLBACK alarmThreadMain(LPVOID arg)
 386 {
 387     DWORD timeout = (DWORD) arg;
 388     trace("alarmThreadMain\n");
 389     if (WaitForSingleObject( alarm_event, timeout ) == WAIT_TIMEOUT)
 390     {
 391         ok(FALSE, "alarm\n");
 392         ExitProcess(1);
 393     }
 394     return 1;
 395 }
 396
 397 HANDLE hnp = INVALID_HANDLE_VALUE;
 398
 399 /** Trivial byte echo server - disconnects after each session */
 400 static DWORD CALLBACK serverThreadMain1(LPVOID arg)
 401 {
 402     int i;
 403
 404     trace("serverThreadMain1 start\n");
 405     /* Set up a simple echo server */
 406     hnp = CreateNamedPipe(PIPENAME "serverThreadMain1", PIPE_ACCESS_DUPLEX,
 407         PIPE_TYPE_BYTE | PIPE_WAIT,
 408         /* nMaxInstances */ 1,
 409         /* nOutBufSize */ 1024,
 410         /* nInBufSize */ 1024,
 411         /* nDefaultWait */ NMPWAIT_USE_DEFAULT_WAIT,
 412         /* lpSecurityAttrib */ NULL);
 413
 414     ok(hnp != INVALID_HANDLE_VALUE, "CreateNamedPipe failed\n");
 415     for (i = 0; i < NB_SERVER_LOOPS; i++) {
 416         char buf[512];
 417         DWORD written;
 418         DWORD readden;
 419         DWORD success;
 420
 421         /* Wait for client to connect */
 422         trace("Server calling ConnectNamedPipe...\n");
 423         ok(ConnectNamedPipe(hnp, NULL)
 424             || GetLastError() == ERROR_PIPE_CONNECTED, "ConnectNamedPipe\n");
 425         trace("ConnectNamedPipe returned.\n");
 426
 427         /* Echo bytes once */
 428         memset(buf, 0, sizeof(buf));
 429
 430         trace("Server reading...\n");
 431         success = ReadFile(hnp, buf, sizeof(buf), &readden, NULL);
 432         trace("Server done reading.\n");
 433         ok(success, "ReadFile\n");
 434         ok(readden, "short read\n");
 435
 436         trace("Server writing...\n");
 437         ok(WriteFile(hnp, buf, readden, &written, NULL), "WriteFile\n");
 438         trace("Server done writing.\n");
 439         ok(written == readden, "write file len\n");
 440
 441         /* finish this connection, wait for next one */
 442         ok(FlushFileBuffers(hnp), "FlushFileBuffers\n");
 443         trace("Server done flushing.\n");
 444         ok(DisconnectNamedPipe(hnp), "DisconnectNamedPipe\n");
 445         trace("Server done disconnecting.\n");
 446     }
 447     return 0;
 448 }
 449
 450 /** Trivial byte echo server - closes after each connection */
 451 static DWORD CALLBACK serverThreadMain2(LPVOID arg)
 452 {
 453     int i;
 454     HANDLE hnpNext = 0;
 455
 456     trace("serverThreadMain2\n");
 457     /* Set up a simple echo server */
 458     hnp = CreateNamedPipe(PIPENAME "serverThreadMain2", PIPE_ACCESS_DUPLEX,
 459         PIPE_TYPE_BYTE | PIPE_WAIT,
 460         /* nMaxInstances */ 2,
 461         /* nOutBufSize */ 1024,
 462         /* nInBufSize */ 1024,
 463         /* nDefaultWait */ NMPWAIT_USE_DEFAULT_WAIT,
 464         /* lpSecurityAttrib */ NULL);
 465     ok(hnp != INVALID_HANDLE_VALUE, "CreateNamedPipe failed\n");
 466
 467     for (i = 0; i < NB_SERVER_LOOPS; i++) {
 468         char buf[512];
 469         DWORD written;
 470         DWORD readden;
 471         DWORD success;
 472
 473         /* Wait for client to connect */
 474         trace("Server calling ConnectNamedPipe...\n");
 475         ok(ConnectNamedPipe(hnp, NULL)
 476             || GetLastError() == ERROR_PIPE_CONNECTED, "ConnectNamedPipe\n");
 477         trace("ConnectNamedPipe returned.\n");
 478
 479         /* Echo bytes once */
 480         memset(buf, 0, sizeof(buf));
 481
 482         trace("Server reading...\n");
 483         success = ReadFile(hnp, buf, sizeof(buf), &readden, NULL);
 484         trace("Server done reading.\n");
 485         ok(success, "ReadFile\n");
 486
 487         trace("Server writing...\n");
 488         ok(WriteFile(hnp, buf, readden, &written, NULL), "WriteFile\n");
 489         trace("Server done writing.\n");
 490         ok(written == readden, "write file len\n");
 491
 492         /* finish this connection, wait for next one */
 493         ok(FlushFileBuffers(hnp), "FlushFileBuffers\n");
 494         ok(DisconnectNamedPipe(hnp), "DisconnectNamedPipe\n");
 495
 496         /* Set up next echo server */
 497         hnpNext =
 498             CreateNamedPipe(PIPENAME "serverThreadMain2", PIPE_ACCESS_DUPLEX,
 499             PIPE_TYPE_BYTE | PIPE_WAIT,
 500             /* nMaxInstances */ 2,
 501             /* nOutBufSize */ 1024,
 502             /* nInBufSize */ 1024,
 503             /* nDefaultWait */ NMPWAIT_USE_DEFAULT_WAIT,
 504             /* lpSecurityAttrib */ NULL);
 505
 506         ok(hnpNext != INVALID_HANDLE_VALUE, "CreateNamedPipe failed\n");
 507
 508         ok(CloseHandle(hnp), "CloseHandle\n");
 509         hnp = hnpNext;
 510     }
 511     return 0;
 512 }
 513
 514 /** Trivial byte echo server - uses overlapped named pipe calls */
 515 static DWORD CALLBACK serverThreadMain3(LPVOID arg)
 516 {
 517     int i;
 518     HANDLE hEvent;
 519
 520     trace("serverThreadMain3\n");
 521     /* Set up a simple echo server */
 522     hnp = CreateNamedPipe(PIPENAME "serverThreadMain3", PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
 523         PIPE_TYPE_BYTE | PIPE_WAIT,
 524         /* nMaxInstances */ 1,
 525         /* nOutBufSize */ 1024,
 526         /* nInBufSize */ 1024,
 527         /* nDefaultWait */ NMPWAIT_USE_DEFAULT_WAIT,
 528         /* lpSecurityAttrib */ NULL);
 529     ok(hnp != INVALID_HANDLE_VALUE, "CreateNamedPipe failed\n");
 530
 531     hEvent = CreateEvent(NULL,  /* security attribute */
 532         TRUE,                   /* manual reset event */
 533         FALSE,                  /* initial state */
 534         NULL);                  /* name */
 535     ok(hEvent != NULL, "CreateEvent\n");
 536
 537     for (i = 0; i < NB_SERVER_LOOPS; i++) {
 538         char buf[512];
 539         DWORD written;
 540         DWORD readden;
 541         DWORD dummy;
 542         DWORD success;
 543         OVERLAPPED oOverlap;
 544         int letWFSOEwait = (i & 2);
 545         int letGORwait = (i & 1);
 546         DWORD err;
 547
 548         memset(&oOverlap, 0, sizeof(oOverlap));
 549         oOverlap.hEvent = hEvent;
 550
 551         /* Wait for client to connect */
 552         trace("Server calling overlapped ConnectNamedPipe...\n");
 553         success = ConnectNamedPipe(hnp, &oOverlap);
 554         err = GetLastError();
 555         ok(success || err == ERROR_IO_PENDING
 556             || err == ERROR_PIPE_CONNECTED, "overlapped ConnectNamedPipe\n");
 557         trace("overlapped ConnectNamedPipe returned.\n");
 558         if (!success && (err == ERROR_IO_PENDING) && letWFSOEwait)
 559             ok(WaitForSingleObjectEx(hEvent, INFINITE, TRUE) == 0, "wait ConnectNamedPipe\n");
 560         success = GetOverlappedResult(hnp, &oOverlap, &dummy, letGORwait);
 561         if (!letGORwait && !letWFSOEwait && !success) {
 562             ok(GetLastError() == ERROR_IO_INCOMPLETE, "GetOverlappedResult\n");
 563             success = GetOverlappedResult(hnp, &oOverlap, &dummy, TRUE);
 564         }
 565         ok(success, "GetOverlappedResult ConnectNamedPipe\n");
 566         trace("overlapped ConnectNamedPipe operation complete.\n");
 567
 568         /* Echo bytes once */
 569         memset(buf, 0, sizeof(buf));
 570
 571         trace("Server reading...\n");
 572         success = ReadFile(hnp, buf, sizeof(buf), NULL, &oOverlap);
 573         trace("Server ReadFile returned...\n");
 574         err = GetLastError();
 575         ok(success || err == ERROR_IO_PENDING, "overlapped ReadFile\n");
 576         trace("overlapped ReadFile returned.\n");
 577         if (!success && (err == ERROR_IO_PENDING) && letWFSOEwait)
 578             ok(WaitForSingleObjectEx(hEvent, INFINITE, TRUE) == 0, "wait ReadFile\n");
 579         success = GetOverlappedResult(hnp, &oOverlap, &readden, letGORwait);
 580         if (!letGORwait && !letWFSOEwait && !success) {
 581             ok(GetLastError() == ERROR_IO_INCOMPLETE, "GetOverlappedResult\n");
 582             success = GetOverlappedResult(hnp, &oOverlap, &readden, TRUE);
 583         }
 584         trace("Server done reading.\n");
 585         ok(success, "overlapped ReadFile\n");
 586
 587         trace("Server writing...\n");
 588         success = WriteFile(hnp, buf, readden, NULL, &oOverlap);
 589         trace("Server WriteFile returned...\n");
 590         err = GetLastError();
 591         ok(success || err == ERROR_IO_PENDING, "overlapped WriteFile\n");
 592         trace("overlapped WriteFile returned.\n");
 593         if (!success && (err == ERROR_IO_PENDING) && letWFSOEwait)
 594             ok(WaitForSingleObjectEx(hEvent, INFINITE, TRUE) == 0, "wait WriteFile\n");
 595         success = GetOverlappedResult(hnp, &oOverlap, &written, letGORwait);
 596         if (!letGORwait && !letWFSOEwait && !success) {
 597             ok(GetLastError() == ERROR_IO_INCOMPLETE, "GetOverlappedResult\n");
 598             success = GetOverlappedResult(hnp, &oOverlap, &written, TRUE);
 599         }
 600         trace("Server done writing.\n");
 601         ok(success, "overlapped WriteFile\n");
 602         ok(written == readden, "write file len\n");
 603
 604         /* finish this connection, wait for next one */
 605         ok(FlushFileBuffers(hnp), "FlushFileBuffers\n");
 606         ok(DisconnectNamedPipe(hnp), "DisconnectNamedPipe\n");
 607     }
 608     return 0;
 609 }
 610
 611 static void exercizeServer(const char *pipename, HANDLE serverThread)
 612 {
 613     int i;
 614
 615     trace("exercizeServer starting\n");
 616     for (i = 0; i < NB_SERVER_LOOPS; i++) {
 617         HANDLE hFile=INVALID_HANDLE_VALUE;
 618         static const char obuf[] = "Bit Bucket";
 619         char ibuf[32];
 620         DWORD written;
 621         DWORD readden;
 622         int loop;
 623
 624         for (loop = 0; loop < 3; loop++) {
 625             DWORD err;
 626             trace("Client connecting...\n");
 627             /* Connect to the server */
 628             hFile = CreateFileA(pipename, GENERIC_READ | GENERIC_WRITE, 0,
 629                 NULL, OPEN_EXISTING, 0, 0);
 630             if (hFile != INVALID_HANDLE_VALUE)
 631                 break;
 632             err = GetLastError();
 633             if (loop == 0)
 634                 ok(err == ERROR_PIPE_BUSY || err == ERROR_FILE_NOT_FOUND, "connecting to pipe\n");
 635             else
 636                 ok(err == ERROR_PIPE_BUSY, "connecting to pipe\n");
 637             trace("connect failed, retrying\n");
 638             Sleep(200);
 639         }
 640         ok(hFile != INVALID_HANDLE_VALUE, "client opening named pipe\n");
 641
 642         /* Make sure it can echo */
 643         memset(ibuf, 0, sizeof(ibuf));
 644         trace("Client writing...\n");
 645         ok(WriteFile(hFile, obuf, sizeof(obuf), &written, NULL), "WriteFile to client end of pipe\n");
 646         ok(written == sizeof(obuf), "write file len\n");
 647         trace("Client reading...\n");
 648         ok(ReadFile(hFile, ibuf, sizeof(obuf), &readden, NULL), "ReadFile from client end of pipe\n");
 649         ok(readden == sizeof(obuf), "read file len\n");
 650         ok(memcmp(obuf, ibuf, written) == 0, "content check\n");
 651
 652         trace("Client closing...\n");
 653         ok(CloseHandle(hFile), "CloseHandle\n");
 654     }
 655
 656     ok(WaitForSingleObject(serverThread,INFINITE) == WAIT_OBJECT_0, "WaitForSingleObject\n");
 657     CloseHandle(hnp);
 658     trace("exercizeServer returning\n");
 659 }
 660
 661 static void test_NamedPipe_2(void)
 662 {
 663     HANDLE serverThread;
 664     DWORD serverThreadId;
 665     HANDLE alarmThread;
 666     DWORD alarmThreadId;
 667
 668     trace("test_NamedPipe_2 starting\n");
 669     /* Set up a ten second timeout */
 670     alarm_event = CreateEvent( NULL, TRUE, FALSE, NULL );
 671     alarmThread = CreateThread(NULL, 0, alarmThreadMain, (void *) 10000, 0, &alarmThreadId);
 672
 673     /* The servers we're about to exercize do try to clean up carefully,
 674      * but to reduce the change of a test failure due to a pipe handle
 675      * leak in the test code, we'll use a different pipe name for each server.
 676      */
 677
 678     /* Try server #1 */
 679     serverThread = CreateThread(NULL, 0, serverThreadMain1, (void *)8, 0, &serverThreadId);
 680     ok(serverThread != INVALID_HANDLE_VALUE, "CreateThread\n");
 681     exercizeServer(PIPENAME "serverThreadMain1", serverThread);
 682
 683     /* Try server #2 */
 684     serverThread = CreateThread(NULL, 0, serverThreadMain2, 0, 0, &serverThreadId);
 685     ok(serverThread != INVALID_HANDLE_VALUE, "CreateThread\n");
 686     exercizeServer(PIPENAME "serverThreadMain2", serverThread);
 687
 688     if( 0 ) /* overlapped pipe server doesn't work yet - it randomly fails */
 689     {
 690     /* Try server #3 */
 691     serverThread = CreateThread(NULL, 0, serverThreadMain3, 0, 0, &serverThreadId);
 692     ok(serverThread != INVALID_HANDLE_VALUE, "CreateThread\n");
 693     exercizeServer(PIPENAME "serverThreadMain3", serverThread);
 694     }
 695
 696     ok(SetEvent( alarm_event ), "SetEvent\n");
 697     CloseHandle( alarm_event );
 698     trace("test_NamedPipe_2 returning\n");
 699 }
 700
 701 static int test_DisconnectNamedPipe(void)
 702 {
 703     HANDLE hnp;
 704     HANDLE hFile;
 705     static const char obuf[] = "Bit Bucket";
 706     char ibuf[32];
 707     DWORD written;
 708     DWORD readden;
 709
 710     hnp = CreateNamedPipe(PIPENAME, PIPE_ACCESS_DUPLEX, PIPE_TYPE_BYTE | PIPE_WAIT,
 711         /* nMaxInstances */ 1,
 712         /* nOutBufSize */ 1024,
 713         /* nInBufSize */ 1024,
 714         /* nDefaultWait */ NMPWAIT_USE_DEFAULT_WAIT,
 715         /* lpSecurityAttrib */ NULL);
 716     if (INVALID_HANDLE_VALUE == hnp) {
 717         trace ("Seems we have no named pipes.\n");
 718         return 1;
 719     }
 720
 721     ok(WriteFile(hnp, obuf, sizeof(obuf), &written, NULL) == 0
 722         && GetLastError() == ERROR_PIPE_LISTENING, "WriteFile to not-yet-connected pipe\n");
 723     ok(ReadFile(hnp, ibuf, sizeof(ibuf), &readden, NULL) == 0
 724         && GetLastError() == ERROR_PIPE_LISTENING, "ReadFile from not-yet-connected pipe\n");
 725
 726     hFile = CreateFileA(PIPENAME, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, 0);
 727     ok(hFile != INVALID_HANDLE_VALUE, "CreateFile failed\n");
 728
 729     /* don't try to do i/o if one side couldn't be opened, as it hangs */
 730     if (hFile != INVALID_HANDLE_VALUE) {
 731
 732         /* see what happens if server calls DisconnectNamedPipe
 733          * when there are bytes in the pipe
 734          */
 735
 736         ok(WriteFile(hFile, obuf, sizeof(obuf), &written, NULL), "WriteFile\n");
 737         ok(written == sizeof(obuf), "write file len\n");
 738         ok(DisconnectNamedPipe(hnp), "DisconnectNamedPipe while messages waiting\n");
 739         ok(WriteFile(hFile, obuf, sizeof(obuf), &written, NULL) == 0
 740             && GetLastError() == ERROR_PIPE_NOT_CONNECTED, "WriteFile to disconnected pipe\n");
 741         ok(ReadFile(hnp, ibuf, sizeof(ibuf), &readden, NULL) == 0
 742             && GetLastError() == ERROR_PIPE_NOT_CONNECTED,
 743             "ReadFile from disconnected pipe with bytes waiting\n");
 744         ok(CloseHandle(hFile), "CloseHandle\n");
 745     }
 746
 747     ok(CloseHandle(hnp), "CloseHandle\n");
 748
 749     return 0;
 750 }
 751 static void test_CreatePipe(void)
 752 {
 753     SECURITY_ATTRIBUTES pipe_attr;
 754     HANDLE piperead, pipewrite;
 755     DWORD written;
 756     DWORD read;
 757     char readbuf[32];
 758
 759     pipe_attr.nLength = sizeof(SECURITY_ATTRIBUTES);
 760     pipe_attr.bInheritHandle = TRUE;
 761     pipe_attr.lpSecurityDescriptor = NULL;
 762     ok(CreatePipe(&piperead, &pipewrite, &pipe_attr, 0) != 0, "CreatePipe failed\n");
 763     ok(WriteFile(pipewrite,PIPENAME,sizeof(PIPENAME), &written, NULL), "Write to anonymous pipe failed\n");
 764     ok(written == sizeof(PIPENAME), "Write to anonymous pipe wrote %d bytes\n", written);
 765     ok(ReadFile(piperead,readbuf,sizeof(readbuf),&read, NULL), "Read from non empty pipe failed\n");
 766     ok(read == sizeof(PIPENAME), "Read from  anonymous pipe got %d bytes\n", read);
 767
 768     /* Now write another chunk*/
 769     ok(CreatePipe(&piperead, &pipewrite, &pipe_attr, 0) != 0, "CreatePipe failed\n");
 770     ok(WriteFile(pipewrite,PIPENAME,sizeof(PIPENAME), &written, NULL), "Write to anonymous pipe failed\n");
 771     ok(written == sizeof(PIPENAME), "Write to anonymous pipe wrote %d bytes\n", written);
 772     /* and close the write end, read should still succeed*/
 773     ok(CloseHandle(pipewrite), "CloseHandle for the Write Pipe failed\n");
 774     ok(ReadFile(piperead,readbuf,sizeof(readbuf),&read, NULL), "Read from broken pipe withe with pending data failed\n");
 775     ok(read == sizeof(PIPENAME), "Read from  anonymous pipe got %d bytes\n", read);
 776     /* But now we need to get informed that the pipe is closed */
 777     ok(ReadFile(piperead,readbuf,sizeof(readbuf),&read, NULL) == 0, "Broken pipe not detected\n");
 778 }
 779
 780 START_TEST(pipe)
 781 {
 782     trace("test 1 of 6:\n");
 783     if (test_DisconnectNamedPipe())
 784         return;
 785     trace("test 2 of 6:\n");
 786     test_CreateNamedPipe_instances_must_match();
 787     trace("test 3 of 6:\n");
 788     test_NamedPipe_2();
 789     trace("test 4 of 6:\n");
 790     test_CreateNamedPipe(PIPE_TYPE_BYTE);
 791     trace("test 5 of 6\n");
 792     test_CreateNamedPipe(PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE);
 793     trace("test 6 of 6\n");
 794     test_CreatePipe();
 795     trace("all tests done\n");
 796 }