diff options
Diffstat (limited to 'src/pal/tests/palsuite/c_runtime/errno/test2/test2.c')
-rw-r--r-- | src/pal/tests/palsuite/c_runtime/errno/test2/test2.c | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/src/pal/tests/palsuite/c_runtime/errno/test2/test2.c b/src/pal/tests/palsuite/c_runtime/errno/test2/test2.c new file mode 100644 index 0000000000..f418d2f199 --- /dev/null +++ b/src/pal/tests/palsuite/c_runtime/errno/test2/test2.c @@ -0,0 +1,76 @@ +// 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: test2.c +** +** Purpose: Test that errno is 'per-thread' as noted in the documentation. +** +** +**==========================================================================*/ + +#include <palsuite.h> + +/* + This thread function just checks that errno is initially 0 and then sets + it to a new value before returning. +*/ +DWORD PALAPI ThreadFunc( LPVOID lpParam ) +{ + + if(errno != 0) + { + *((DWORD*)lpParam) = 1; + } + + errno = 20; + + return 0; +} + + +int __cdecl main(int argc, char *argv[]) +{ + DWORD dwThreadId, dwThrdParam = 0; + HANDLE hThread; + + + if (PAL_Initialize(argc, argv)) + { + return FAIL; + } + + /* Set errno to a value within this thread */ + + errno = 50; + + hThread = CreateThread(NULL, 0, ThreadFunc, &dwThrdParam, 0, &dwThreadId); + + if (hThread == NULL) + { + Fail("ERROR: CreateThread failed to create a thread. " + "GetLastError() returned %d.\n",GetLastError()); + } + + WaitForSingleObject(hThread, INFINITE); + + /* This checks the result of calling the thread */ + if(dwThrdParam) + { + Fail("ERROR: errno was not set to 0 in the new thread. Each " + "thread should have its own value for errno.\n"); + } + + /* Check to make sure errno is still set to 50 */ + if(errno != 50) + { + Fail("ERROR: errno should be 50 in the main thread, even though " + "it was set to 20 in another thread. Currently it is %d.\n", + errno); + } + + PAL_Terminate(); + return PASS; +} |