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Diffstat (limited to 'src/pal/tests/palsuite/threading/DuplicateHandle/test5/test5.cpp')
-rw-r--r-- | src/pal/tests/palsuite/threading/DuplicateHandle/test5/test5.cpp | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/src/pal/tests/palsuite/threading/DuplicateHandle/test5/test5.cpp b/src/pal/tests/palsuite/threading/DuplicateHandle/test5/test5.cpp new file mode 100644 index 0000000000..a588928f00 --- /dev/null +++ b/src/pal/tests/palsuite/threading/DuplicateHandle/test5/test5.cpp @@ -0,0 +1,145 @@ +// Licensed to the .NET Foundation under one or more agreements. +// The .NET Foundation licenses this file to you under the MIT license. +// See the LICENSE file in the project root for more information. + +/*===================================================================== +** +** Source: test5.c (DuplicateHandle) +** +** Purpose: Tests the PAL implementation of the DuplicateHandle function, +** with CreatePipe. This test will create a pipe and write to it, +** the duplicate the read handle and read what was written. +** +** Depends: WriteFile +** ReadFile +** memcmp +** CloseHandle +** +** +**===================================================================*/ + +#include <palsuite.h> + +const char* cTestString = "one fish, two fish, red fish, blue fish."; + +int __cdecl main(int argc, char **argv) +{ + HANDLE hReadPipe = NULL; + HANDLE hWritePipe = NULL; + HANDLE hDupPipe = NULL; + BOOL bRetVal = FALSE; + DWORD dwBytesWritten; + DWORD dwBytesRead; + char buffer[256]; + + SECURITY_ATTRIBUTES lpPipeAttributes; + + /*Initialize the PAL*/ + if ((PAL_Initialize(argc, argv)) != 0) + { + return (FAIL); + } + + /*Setup SECURITY_ATTRIBUTES structure for CreatePipe*/ + lpPipeAttributes.nLength = sizeof(lpPipeAttributes); + lpPipeAttributes.lpSecurityDescriptor = NULL; + lpPipeAttributes.bInheritHandle = TRUE; + + /*Create a Pipe*/ + bRetVal = CreatePipe(&hReadPipe, /* read handle*/ + &hWritePipe, /* write handle */ + &lpPipeAttributes,/* security attributes*/ + 0); /* pipe size*/ + if (bRetVal == FALSE) + { + Fail("ERROR:%u:Unable to create pipe\n", GetLastError()); + } + + /*Write to the write pipe handle*/ + bRetVal = WriteFile(hWritePipe, /* handle to write pipe*/ + cTestString, /* buffer to write*/ + strlen(cTestString),/* number of bytes to write*/ + &dwBytesWritten, /* number of bytes written*/ + NULL); /* overlapped buffer*/ + if (bRetVal == FALSE) + { + Trace("ERROR:%u:unable to write to write pipe handle " + "hWritePipe=0x%lx\n", GetLastError(), hWritePipe); + CloseHandle(hReadPipe); + CloseHandle(hWritePipe); + Fail(""); + } + + /*Duplicate the pipe handle*/ + if (!(DuplicateHandle(GetCurrentProcess(), /* source handle process*/ + hReadPipe, /* handle to duplicate*/ + GetCurrentProcess(), /* target process handle*/ + &hDupPipe, /* duplicate handle*/ + GENERIC_READ|GENERIC_WRITE,/* requested access*/ + FALSE, /* handle inheritance*/ + DUPLICATE_SAME_ACCESS))) /* optional actions*/ + { + Trace("ERROR:%u:Fail to create the duplicate handle" + " to hReadPipe=0x%lx", + GetLastError(), + hReadPipe); + CloseHandle(hReadPipe); + CloseHandle(hWritePipe); + Fail(""); + } + + /*Read from the duplicated handle, 256 bytes, more bytes + than actually written. This will allow us to use the + value that ReadFile returns for comparision.*/ + bRetVal = ReadFile(hDupPipe, /* handle to read pipe*/ + buffer, /* buffer to write to*/ + 256, /* number of bytes to read*/ + &dwBytesRead, /* number of bytes read*/ + NULL); /* overlapped buffer*/ + if (bRetVal == FALSE) + { + Trace("ERROR:%u:unable read from the duplicated pipe " + "hDupPipe=0x%lx\n", + GetLastError(), + hDupPipe); + CloseHandle(hReadPipe); + CloseHandle(hWritePipe); + CloseHandle(hDupPipe); + Fail(""); + } + + /*Compare what was read with what was written.*/ + if ((memcmp(cTestString, buffer, dwBytesRead)) != 0) + { + Trace("ERROR:%u: read \"%s\" expected \"%s\" \n", + GetLastError(), + buffer, + cTestString); + CloseHandle(hReadPipe); + CloseHandle(hWritePipe); + CloseHandle(hDupPipe); + Fail(""); + } + + /*Compare values returned from WriteFile and ReadFile.*/ + if (dwBytesWritten != dwBytesRead) + { + Trace("ERROR:%u: WriteFile wrote \"%s\", but ReadFile read \"%s\"," + " these should be the same\n", + GetLastError(), + buffer, + cTestString); + CloseHandle(hReadPipe); + CloseHandle(hWritePipe); + CloseHandle(hDupPipe); + Fail(""); + } + + /*Cleanup.*/ + CloseHandle(hWritePipe); + CloseHandle(hReadPipe); + CloseHandle(hDupPipe); + + PAL_Terminate(); + return (PASS); +} |