static void tstRTPipe2(void)
{
RTTestISub("Negative");
RTPIPE hPipeR = (RTPIPE)1;
RTPIPE hPipeW = (RTPIPE)1;
RTTESTI_CHECK_RC(RTPipeCreate(&hPipeR, &hPipeW, ~0), VERR_INVALID_PARAMETER);
RTTESTI_CHECK_RC(RTPipeCreate(NULL, &hPipeW, 0), VERR_INVALID_POINTER);
RTTESTI_CHECK_RC(RTPipeCreate(&hPipeR, NULL, 0), VERR_INVALID_POINTER);
RTTESTI_CHECK(hPipeR == (RTPIPE)1);
RTTESTI_CHECK(hPipeW == (RTPIPE)1);
RTTESTI_CHECK_RC_RETV(RTPipeCreate(&hPipeR, &hPipeW, 0), VINF_SUCCESS);
char abBuf[_4K];
size_t cbRead = ~(size_t)3;
RTTESTI_CHECK_RC(RTPipeRead(hPipeW, abBuf, 0, &cbRead), VERR_ACCESS_DENIED);
RTTESTI_CHECK_RC(RTPipeRead(hPipeW, abBuf, 1, &cbRead), VERR_ACCESS_DENIED);
RTTESTI_CHECK(cbRead == ~(size_t)3);
RTTESTI_CHECK_RC(RTPipeReadBlocking(hPipeW, abBuf, 0, NULL), VERR_ACCESS_DENIED);
RTTESTI_CHECK_RC(RTPipeReadBlocking(hPipeW, abBuf, 1, NULL), VERR_ACCESS_DENIED);
size_t cbWrite = ~(size_t)5;
RTTESTI_CHECK_RC(RTPipeWrite(hPipeR, "asdf", 0, &cbWrite), VERR_ACCESS_DENIED);
RTTESTI_CHECK_RC(RTPipeWrite(hPipeR, "asdf", 4, &cbWrite), VERR_ACCESS_DENIED);
RTTESTI_CHECK(cbWrite == ~(size_t)5);
RTTESTI_CHECK_RC(RTPipeWriteBlocking(hPipeR, "asdf", 0, NULL), VERR_ACCESS_DENIED);
RTTESTI_CHECK_RC(RTPipeWriteBlocking(hPipeR, "asdf", 4, NULL), VERR_ACCESS_DENIED);
RTTESTI_CHECK_RC(RTPipeFlush(hPipeR), VERR_ACCESS_DENIED);
RTTESTI_CHECK_RC(RTPipeClose(hPipeR), VINF_SUCCESS);
RTTESTI_CHECK_RC(RTPipeClose(hPipeW), VINF_SUCCESS);
}
int USBProxyBackendLinux::waitUsbfs(RTMSINTERVAL aMillies)
{
struct pollfd PollFds[2];
/* Cap the wait interval if we're polling for udevd changing device permissions. */
if (aMillies > 500 && mUdevPolls > 0)
{
mUdevPolls--;
aMillies = 500;
}
RT_ZERO(PollFds);
PollFds[0].fd = RTFileToNative(mhFile);
PollFds[0].events = POLLIN;
PollFds[1].fd = RTPipeToNative(mhWakeupPipeR);
PollFds[1].events = POLLIN | POLLERR | POLLHUP;
int rc = poll(&PollFds[0], 2, aMillies);
if (rc == 0)
return VERR_TIMEOUT;
if (rc > 0)
{
/* drain the pipe */
if (PollFds[1].revents & POLLIN)
{
char szBuf[WAKE_UP_STRING_LEN];
rc = RTPipeReadBlocking(mhWakeupPipeR, szBuf, sizeof(szBuf), NULL);
AssertRC(rc);
}
return VINF_SUCCESS;
}
return RTErrConvertFromErrno(errno);
}
static void tstRTPipe4(void)
{
RTTestISub("Inherit non-standard pipe handle, write end");
char szPathSelf[RTPATH_MAX];
RTTESTI_CHECK_RETV(RTProcGetExecutablePath(szPathSelf, sizeof(szPathSelf)) == szPathSelf);
RTPIPE hPipeR;
RTPIPE hPipeW;
RTTESTI_CHECK_RC_RETV(RTPipeCreate(&hPipeR, &hPipeW, RTPIPE_C_INHERIT_WRITE), VINF_SUCCESS);
RTHCINTPTR hNative = RTPipeToNative(hPipeW);
RTTESTI_CHECK_RETV(hNative != -1);
char szNative[64];
RTStrPrintf(szNative, sizeof(szNative), "%RHi", hNative);
const char *papszArgs[4] = { szPathSelf, "--child-4", szNative, NULL };
RTPROCESS hChild;
RTTESTI_CHECK_RC_RETV(RTProcCreate(szPathSelf, papszArgs, RTENV_DEFAULT, 0 /*fFlags*/, &hChild), VINF_SUCCESS);
RTTESTI_CHECK_RC_RETV(RTPipeClose(hPipeW), VINF_SUCCESS);
char szTmp[1024];
size_t cbRead = 0;
int rc;
RTTESTI_CHECK_RC(rc = RTPipeReadBlocking(hPipeR, szTmp, sizeof(szTmp) - 1, &cbRead), VINF_SUCCESS);
if (RT_FAILURE(rc))
cbRead = 0;
RTTESTI_CHECK_RETV(cbRead < sizeof(szTmp));
szTmp[cbRead] = '\0';
size_t cbRead2;
char szTmp2[4];
RTTESTI_CHECK_RC(RTPipeReadBlocking(hPipeR, szTmp2, sizeof(szTmp2), &cbRead2), VERR_BROKEN_PIPE);
RTTESTI_CHECK_RC(rc = RTPipeClose(hPipeR), VINF_SUCCESS);
if (RT_FAILURE(rc))
RTTESTI_CHECK_RC(RTProcTerminate(hChild), VINF_SUCCESS);
RTPROCSTATUS ProcStatus;
RTTESTI_CHECK_RC(rc = RTProcWait(hChild, RTPROCWAIT_FLAGS_BLOCK, &ProcStatus), VINF_SUCCESS);
if (RT_FAILURE(rc))
return;
RTTESTI_CHECK( ProcStatus.enmReason == RTPROCEXITREASON_NORMAL
&& ProcStatus.iStatus == 0);
if (memcmp(szTmp, g_szTest4Message, sizeof(g_szTest4Message)))
RTTestIFailed("Message mismatch.\n:Expected '%s'\nGot '%s'\n", g_szTest4Message, szTmp);
}
static void tstRTCreateProcEx2(const char *pszAsUser, const char *pszPassword)
{
RTTestISub("Standard Err");
RTPIPE hPipeR, hPipeW;
RTTESTI_CHECK_RC_RETV(RTPipeCreate(&hPipeR, &hPipeW, RTPIPE_C_INHERIT_WRITE), VINF_SUCCESS);
const char * apszArgs[3] =
{
"non-existing-non-executable-file",
"--testcase-child-2",
NULL
};
RTHANDLE Handle;
Handle.enmType = RTHANDLETYPE_PIPE;
Handle.u.hPipe = hPipeW;
RTPROCESS hProc;
RTTESTI_CHECK_RC_RETV(RTProcCreateEx(g_szExecName, apszArgs, RTENV_DEFAULT, 0 /*fFlags*/, NULL,
NULL, &Handle, pszAsUser, pszPassword, &hProc), VINF_SUCCESS);
RTTESTI_CHECK_RC(RTPipeClose(hPipeW), VINF_SUCCESS);
char szOutput[_4K];
size_t offOutput = 0;
for (;;)
{
size_t cbLeft = sizeof(szOutput) - 1 - offOutput;
RTTESTI_CHECK(cbLeft > 0);
if (cbLeft == 0)
break;
size_t cbRead;
int rc = RTPipeReadBlocking(hPipeR, &szOutput[offOutput], cbLeft, &cbRead);
if (RT_FAILURE(rc))
{
RTTESTI_CHECK_RC(rc, VERR_BROKEN_PIPE);
break;
}
offOutput += cbRead;
}
szOutput[offOutput] = '\0';
RTTESTI_CHECK_RC(RTPipeClose(hPipeR), VINF_SUCCESS);
RTPROCSTATUS ProcStatus = { -1, RTPROCEXITREASON_ABEND };
RTTESTI_CHECK_RC(RTProcWait(hProc, RTPROCWAIT_FLAGS_BLOCK, &ProcStatus), VINF_SUCCESS);
RTThreadSleep(10);
if (ProcStatus.enmReason != RTPROCEXITREASON_NORMAL || ProcStatus.iStatus != 0)
RTTestIFailed("enmReason=%d iStatus=%d", ProcStatus.enmReason, ProcStatus.iStatus);
else if ( offOutput != sizeof("howdy") - 1
|| strcmp(szOutput, "howdy"))
RTTestIFailed("wrong output: \"%s\" (len=%u)", szOutput, offOutput);
else
RTTestIPassed(NULL);
}
static RTEXITCODE tstRTPipe5Child(const char *pszPipe)
{
int rc = RTR3InitExeNoArguments(0);
if (RT_FAILURE(rc))
return RTMsgInitFailure(rc);
int64_t iNative;
rc = RTStrToInt64Full(pszPipe, 10, &iNative);
if (RT_FAILURE(rc))
return RTMsgErrorExit(RTEXITCODE_FAILURE, "RTStrToUInt64Full(%s) -> %Rrc\n", pszPipe, rc);
RTPIPE hPipe;
rc = RTPipeFromNative(&hPipe, (RTHCINTPTR)iNative, RTPIPE_N_READ);
if (RT_FAILURE(rc))
return RTMsgErrorExit(RTEXITCODE_FAILURE, "RTPipeFromNative(,%s,READ) -> %Rrc\n", pszPipe, rc);
///
char szTmp[1024];
size_t cbRead = 0;
rc = RTPipeReadBlocking(hPipe, szTmp, sizeof(szTmp) - 1, &cbRead);
if (RT_FAILURE(rc))
return RTMsgErrorExit(RTEXITCODE_FAILURE, "RTPipeReadBlocking() -> %Rrc\n", rc);
szTmp[cbRead] = '\0';
size_t cbRead2;
char szTmp2[4];
rc = RTPipeReadBlocking(hPipe, szTmp2, sizeof(szTmp2), &cbRead2);
if (rc != VERR_BROKEN_PIPE)
return RTMsgErrorExit(RTEXITCODE_FAILURE, "RTPipeReadBlocking() -> %Rrc instead of VERR_BROKEN_PIPE\n", rc);
rc = RTPipeClose(hPipe);
if (RT_FAILURE(rc))
return RTMsgErrorExit(RTEXITCODE_FAILURE, "RTPipeClose() -> %Rrc\n", rc);
if (memcmp(szTmp, g_szTest5Message, sizeof(g_szTest5Message)))
return RTMsgErrorExit(RTEXITCODE_FAILURE, "Message mismatch.\n:Expected '%s'\nGot '%s'\n", g_szTest5Message, szTmp);
return RTEXITCODE_SUCCESS;
}
static void tstRTPipe1(void)
{
RTTestISub("Basics");
RTPIPE hPipeR = NIL_RTPIPE;
RTPIPE hPipeW = NIL_RTPIPE;
RTTESTI_CHECK_RC_RETV(RTPipeCreate(&hPipeR, &hPipeW, 0), VINF_SUCCESS);
RTTESTI_CHECK_RETV(hPipeR != NIL_RTPIPE);
RTTESTI_CHECK_RETV(hPipeW != NIL_RTPIPE);
RTTESTI_CHECK_RC_RETV(RTPipeClose(hPipeR), VINF_SUCCESS);
RTTESTI_CHECK_RC_RETV(RTPipeClose(hPipeW), VINF_SUCCESS);
RTTESTI_CHECK_RC_RETV(RTPipeClose(NIL_RTPIPE), VINF_SUCCESS);
hPipeR = NIL_RTPIPE;
hPipeW = NIL_RTPIPE;
RTTESTI_CHECK_RC_RETV(RTPipeCreate(&hPipeR, &hPipeW, RTPIPE_C_INHERIT_READ | RTPIPE_C_INHERIT_WRITE), VINF_SUCCESS);
int rc = RTPipeFlush(hPipeW);
RTTESTI_CHECK_MSG(rc == VERR_NOT_SUPPORTED || rc == VINF_SUCCESS, ("%Rrc\n", rc));
RTTESTI_CHECK_RC_RETV(RTPipeClose(hPipeR), VINF_SUCCESS);
RTTESTI_CHECK_RC_RETV(RTPipeClose(hPipeW), VINF_SUCCESS);
RTTESTI_CHECK_RC_RETV(RTPipeCreate(&hPipeR, &hPipeW, RTPIPE_C_INHERIT_READ), VINF_SUCCESS);
RTTESTI_CHECK_RC_RETV(RTPipeSelectOne(hPipeR, 0), VERR_TIMEOUT);
RTTESTI_CHECK_RC_RETV(RTPipeSelectOne(hPipeR, 1), VERR_TIMEOUT);
RTTESTI_CHECK_RC_RETV(RTPipeSelectOne(hPipeW, 0), VINF_SUCCESS);
RTTESTI_CHECK_RC_RETV(RTPipeSelectOne(hPipeW, 1), VINF_SUCCESS);
RTTESTI_CHECK_RC_RETV(RTPipeClose(hPipeR), VINF_SUCCESS);
RTTESTI_CHECK_RC_RETV(RTPipeClose(hPipeW), VINF_SUCCESS);
RTTESTI_CHECK_RC_RETV(RTPipeCreate(&hPipeR, &hPipeW, RTPIPE_C_INHERIT_WRITE), VINF_SUCCESS);
RTTESTI_CHECK_RC_RETV(RTPipeClose(hPipeR), VINF_SUCCESS);
RTTESTI_CHECK_RC_RETV(RTPipeClose(hPipeW), VINF_SUCCESS);
RTTESTI_CHECK_RC_RETV(RTPipeCreate(&hPipeR, &hPipeW, RTPIPE_C_INHERIT_READ), VINF_SUCCESS);
size_t cbRead = ~(size_t)0;
char abBuf[_64K + _4K];
RTTESTI_CHECK_RC_RETV(RTPipeRead(hPipeR, abBuf, sizeof(abBuf), &cbRead), VINF_TRY_AGAIN);
RTTESTI_CHECK_RETV(cbRead == 0);
cbRead = ~(size_t)0;
RTTESTI_CHECK_RC_RETV(RTPipeRead(hPipeR, abBuf, 1, &cbRead), VINF_TRY_AGAIN);
RTTESTI_CHECK_RETV(cbRead == 0);
cbRead = ~(size_t)0;
RTTESTI_CHECK_RC_RETV(RTPipeRead(hPipeR, abBuf, 0, &cbRead), VINF_SUCCESS);
RTTESTI_CHECK_RETV(cbRead == 0);
size_t cbWritten = ~(size_t)2;
RTTESTI_CHECK_RC_RETV(RTPipeWrite(hPipeW, abBuf, 0, &cbWritten), VINF_SUCCESS);
RTTESTI_CHECK_RETV(cbWritten == 0);
/* We can write a number of bytes without blocking (see PIPE_BUF on
POSIX systems). */
cbWritten = ~(size_t)2;
RTTESTI_CHECK_RC_RETV(RTPipeWrite(hPipeW, "42", 2, &cbWritten), VINF_SUCCESS);
RTTESTI_CHECK_MSG_RETV(cbWritten == 2, ("cbWritten=%zu\n", cbWritten));
cbWritten = ~(size_t)2;
RTTESTI_CHECK_RC_RETV(RTPipeWrite(hPipeW, "!", 1, &cbWritten), VINF_SUCCESS);
RTTESTI_CHECK_RETV(cbWritten == 1);
cbRead = ~(size_t)0;
RTTESTI_CHECK_RC_RETV(RTPipeRead(hPipeR, abBuf, 3, &cbRead), VINF_SUCCESS);
RTTESTI_CHECK_RETV(cbRead == 3);
RTTESTI_CHECK_RETV(!memcmp(abBuf, "42!", 3));
cbWritten = ~(size_t)2;
RTTESTI_CHECK_RC_RETV(RTPipeWrite(hPipeW, "BigQ", 4, &cbWritten), VINF_SUCCESS);
RTTESTI_CHECK_RETV(cbWritten == 4);
RTTESTI_CHECK_RC_RETV(RTPipeSelectOne(hPipeR, 0), VINF_SUCCESS);
RTTESTI_CHECK_RC_RETV(RTPipeSelectOne(hPipeR, 1), VINF_SUCCESS);
cbRead = ~(size_t)0;
RTTESTI_CHECK_RC_RETV(RTPipeQueryReadable(hPipeR, &cbRead), VINF_SUCCESS);
RTTESTI_CHECK_MSG(cbRead == cbWritten, ("cbRead=%zu cbWritten=%zu\n", cbRead, cbWritten));
cbRead = ~(size_t)0;
RTTESTI_CHECK_RC_RETV(RTPipeRead(hPipeR, abBuf, sizeof(abBuf), &cbRead), VINF_SUCCESS);
RTTESTI_CHECK_RETV(cbRead == 4);
RTTESTI_CHECK_RETV(!memcmp(abBuf, "BigQ", 4));
cbWritten = ~(size_t)2;
RTTESTI_CHECK_RC_RETV(RTPipeWrite(hPipeW, "H2G2", 4, &cbWritten), VINF_SUCCESS);
RTTESTI_CHECK_RETV(cbWritten == 4);
cbRead = ~(size_t)0;
RTTESTI_CHECK_RC_RETV(RTPipeQueryReadable(hPipeR, &cbRead), VINF_SUCCESS);
RTTESTI_CHECK_MSG(cbRead == cbWritten, ("cbRead=%zu cbWritten=%zu\n", cbRead, cbWritten));
cbRead = ~(size_t)0;
RTTESTI_CHECK_RC_RETV(RTPipeRead(hPipeR, &abBuf[0], 1, &cbRead), VINF_SUCCESS);
RTTESTI_CHECK_RETV(cbRead == 1);
cbRead = ~(size_t)0;
RTTESTI_CHECK_RC_RETV(RTPipeQueryReadable(hPipeR, &cbRead), VINF_SUCCESS);
RTTESTI_CHECK_MSG(cbRead == cbWritten - 1, ("cbRead=%zu cbWritten=%zu\n", cbRead, cbWritten));
cbRead = ~(size_t)0;
RTTESTI_CHECK_RC_RETV(RTPipeRead(hPipeR, &abBuf[1], 1, &cbRead), VINF_SUCCESS);
RTTESTI_CHECK_RETV(cbRead == 1);
cbRead = ~(size_t)0;
RTTESTI_CHECK_RC_RETV(RTPipeQueryReadable(hPipeR, &cbRead), VINF_SUCCESS);
RTTESTI_CHECK_MSG(cbRead == cbWritten - 2, ("cbRead=%zu cbWritten=%zu\n", cbRead, cbWritten));
cbRead = ~(size_t)0;
RTTESTI_CHECK_RC_RETV(RTPipeRead(hPipeR, &abBuf[2], 1, &cbRead), VINF_SUCCESS);
RTTESTI_CHECK_RETV(cbRead == 1);
cbRead = ~(size_t)0;
RTTESTI_CHECK_RC_RETV(RTPipeQueryReadable(hPipeR, &cbRead), VINF_SUCCESS);
RTTESTI_CHECK_MSG(cbRead == cbWritten - 3, ("cbRead=%zu cbWritten=%zu\n", cbRead, cbWritten));
cbRead = ~(size_t)0;
RTTESTI_CHECK_RC_RETV(RTPipeRead(hPipeR, &abBuf[3], 1, &cbRead), VINF_SUCCESS);
RTTESTI_CHECK_RETV(cbRead == 1);
RTTESTI_CHECK_RETV(!memcmp(abBuf, "H2G2", 4));
cbRead = ~(size_t)0;
RTTESTI_CHECK_RC_RETV(RTPipeQueryReadable(hPipeR, &cbRead), VINF_SUCCESS);
RTTESTI_CHECK_MSG(cbRead == cbWritten - 4, ("cbRead=%zu cbWritten=%zu\n", cbRead, cbWritten));
RTTESTI_CHECK_RC_RETV(RTPipeClose(hPipeR), VINF_SUCCESS);
RTTESTI_CHECK_RC_RETV(RTPipeClose(hPipeW), VINF_SUCCESS);
RTTestISub("VERR_BROKEN_PIPE");
RTTESTI_CHECK_RC_RETV(RTPipeCreate(&hPipeR, &hPipeW, 0), VINF_SUCCESS);
RTTESTI_CHECK_RC_RETV(RTPipeClose(hPipeR), VINF_SUCCESS);
cbWritten = ~(size_t)2;
RTTESTI_CHECK_RC(RTPipeWrite(hPipeW, "", 0, &cbWritten), VINF_SUCCESS);
RTTESTI_CHECK(cbWritten == 0);
cbWritten = ~(size_t)2;
RTTESTI_CHECK_RC(RTPipeWrite(hPipeW, "4", 1, &cbWritten), VERR_BROKEN_PIPE);
RTTESTI_CHECK(cbWritten == ~(size_t)2);
RTTESTI_CHECK_RC(RTPipeClose(hPipeW), VINF_SUCCESS);
RTTESTI_CHECK_RC_RETV(RTPipeCreate(&hPipeR, &hPipeW, 0), VINF_SUCCESS);
RTTESTI_CHECK_RC_RETV(RTPipeClose(hPipeW), VINF_SUCCESS);
cbRead = ~(size_t)0;
RTTESTI_CHECK_RC(RTPipeRead(hPipeR, abBuf, 0, &cbRead), VINF_SUCCESS);
RTTESTI_CHECK(cbRead == 0);
cbRead = ~(size_t)3;
RTTESTI_CHECK_RC(RTPipeRead(hPipeR, abBuf, sizeof(abBuf), &cbRead), VERR_BROKEN_PIPE);
RTTESTI_CHECK(cbRead == ~(size_t)3);
RTTESTI_CHECK_RC(RTPipeClose(hPipeR), VINF_SUCCESS);
RTTESTI_CHECK_RC_RETV(RTPipeCreate(&hPipeR, &hPipeW, 0), VINF_SUCCESS);
cbWritten = ~(size_t)2;
RTTESTI_CHECK_RC(RTPipeWrite(hPipeW, "42", 2, &cbWritten), VINF_SUCCESS);
RTTESTI_CHECK(cbWritten == 2);
RTTESTI_CHECK_RC_RETV(RTPipeClose(hPipeW), VINF_SUCCESS);
cbRead = ~(size_t)0;
RTTESTI_CHECK_RC_RETV(RTPipeRead(hPipeR, abBuf, 0, &cbRead), VINF_SUCCESS);
RTTESTI_CHECK(cbRead == 0);
cbRead = ~(size_t)0;
RTTESTI_CHECK_RC(RTPipeRead(hPipeR, &abBuf[0], 1, &cbRead), VINF_SUCCESS);
RTTESTI_CHECK(cbRead == 1);
cbRead = ~(size_t)0;
RTTESTI_CHECK_RC(RTPipeRead(hPipeR, &abBuf[1], 1, &cbRead), VINF_SUCCESS);
RTTESTI_CHECK(cbRead == 1);
RTTESTI_CHECK(!memcmp(abBuf, "42", 2));
cbRead = ~(size_t)0;
RTTESTI_CHECK_RC(RTPipeRead(hPipeR, abBuf, 0, &cbRead), VINF_SUCCESS);
RTTESTI_CHECK(cbRead == 0);
cbRead = ~(size_t)3;
RTTESTI_CHECK_RC_RETV(RTPipeRead(hPipeR, abBuf, sizeof(abBuf), &cbRead), VERR_BROKEN_PIPE);
RTTESTI_CHECK(cbRead == ~(size_t)3);
RTTESTI_CHECK_RC(RTPipeClose(hPipeR), VINF_SUCCESS);
RTTestISub("Blocking");
RTTESTI_CHECK_RC_RETV(RTPipeCreate(&hPipeR, &hPipeW, 0), VINF_SUCCESS);
RTTESTI_CHECK_RC_RETV(RTPipeWrite(hPipeW, "42!", 3, &cbWritten), VINF_SUCCESS);
RTTESTI_CHECK(cbWritten == 3);
RTTESTI_CHECK_RC_RETV(RTPipeReadBlocking(hPipeR, abBuf, 3, NULL), VINF_SUCCESS);
RTTESTI_CHECK(!memcmp(abBuf, "42!", 3));
RTTESTI_CHECK_RC(RTPipeClose(hPipeW), VINF_SUCCESS);
RTTESTI_CHECK_RC_RETV(RTPipeReadBlocking(hPipeR, &abBuf[0], 0, NULL), VINF_SUCCESS);
cbRead = ~(size_t)42;
RTTESTI_CHECK_RC_RETV(RTPipeReadBlocking(hPipeR, &abBuf[0], 0, &cbRead), VINF_SUCCESS);
RTTESTI_CHECK(cbRead == 0);
RTTESTI_CHECK_RC_RETV(RTPipeReadBlocking(hPipeR, &abBuf[0], 1, NULL), VERR_BROKEN_PIPE);
cbRead = ~(size_t)42;
RTTESTI_CHECK_RC_RETV(RTPipeReadBlocking(hPipeR, &abBuf[0], 1, &cbRead), VERR_BROKEN_PIPE);
RTTESTI_CHECK(cbRead == 0);
RTTESTI_CHECK_RC(RTPipeClose(hPipeR), VINF_SUCCESS);
RTTESTI_CHECK_RC_RETV(RTPipeCreate(&hPipeR, &hPipeW, 0), VINF_SUCCESS);
RTTESTI_CHECK_RC_RETV(RTPipeWriteBlocking(hPipeW, "42!", 3, NULL), VINF_SUCCESS);
RTTESTI_CHECK(cbWritten == 3);
cbRead = ~(size_t)0;
RTTESTI_CHECK_RC_RETV(RTPipeRead(hPipeR, &abBuf[0], 1, &cbRead), VINF_SUCCESS);
RTTESTI_CHECK(cbRead == 1);
RTTESTI_CHECK_RC_RETV(RTPipeReadBlocking(hPipeR, &abBuf[1], 1, NULL), VINF_SUCCESS);
RTTESTI_CHECK_RC_RETV(RTPipeReadBlocking(hPipeR, &abBuf[2], 1, NULL), VINF_SUCCESS);
RTTESTI_CHECK(!memcmp(abBuf, "42!", 3));
RTTESTI_CHECK_RC(RTPipeClose(hPipeR), VINF_SUCCESS);
RTTESTI_CHECK_RC_RETV(RTPipeWriteBlocking(hPipeW, "", 0, NULL), VINF_SUCCESS);
cbWritten = ~(size_t)9;
RTTESTI_CHECK_RC_RETV(RTPipeWriteBlocking(hPipeW, "", 0, &cbWritten), VINF_SUCCESS);
RTTESTI_CHECK(cbWritten == 0);
RTTESTI_CHECK_RC_RETV(RTPipeWriteBlocking(hPipeW, "42", 2, NULL), VERR_BROKEN_PIPE);
cbWritten = ~(size_t)9;
RTTESTI_CHECK_RC_RETV(RTPipeWriteBlocking(hPipeW, "42", 2, &cbWritten), VERR_BROKEN_PIPE);
RTTESTI_CHECK(cbWritten == 0);
RTTESTI_CHECK_RC(RTPipeClose(hPipeW), VINF_SUCCESS);
}
