diff options
Diffstat (limited to 'gnulib/tests/test-pipe2.c')
| m--------- | gnulib | 0 | ||||
| -rw-r--r-- | gnulib/tests/test-pipe2.c | 144 |
2 files changed, 144 insertions, 0 deletions
diff --git a/gnulib b/gnulib deleted file mode 160000 -Subproject 443bc5ffcf7429e557f4a371b0661abe98ddbc1 diff --git a/gnulib/tests/test-pipe2.c b/gnulib/tests/test-pipe2.c new file mode 100644 index 0000000..c278f7a --- /dev/null +++ b/gnulib/tests/test-pipe2.c @@ -0,0 +1,144 @@ +/* Test of pipe2. + Copyright (C) 2009-2011 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +#include <config.h> + +#include <unistd.h> + +#include "signature.h" +SIGNATURE_CHECK (pipe2, int, (int[2], int)); + +#include <fcntl.h> +#include <stdbool.h> + +#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ +/* Get declarations of the Win32 API functions. */ +# define WIN32_LEAN_AND_MEAN +# include <windows.h> +/* Get _get_osfhandle. */ +# include "msvc-nothrow.h" +#endif + +#include "binary-io.h" +#include "macros.h" +#if GNULIB_NONBLOCKING +# include "nonblocking.h" +#endif + +/* Return true if FD is open. */ +static bool +is_open (int fd) +{ +#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ + /* On Win32, the initial state of unassigned standard file + descriptors is that they are open but point to an + INVALID_HANDLE_VALUE, and there is no fcntl. */ + return (HANDLE) _get_osfhandle (fd) != INVALID_HANDLE_VALUE; +#else +# ifndef F_GETFL +# error Please port fcntl to your platform +# endif + return 0 <= fcntl (fd, F_GETFL); +#endif +} + +/* Return true if FD is not inherited to child processes. */ +static bool +is_cloexec (int fd) +{ +#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ + HANDLE h = (HANDLE) _get_osfhandle (fd); + DWORD flags; + ASSERT (GetHandleInformation (h, &flags)); + return (flags & HANDLE_FLAG_INHERIT) == 0; +#else + int flags; + ASSERT ((flags = fcntl (fd, F_GETFD)) >= 0); + return (flags & FD_CLOEXEC) != 0; +#endif +} + +#if ! GNULIB_NONBLOCKING +static int +get_nonblocking_flag (int fd) +{ +# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ + return 0; +# else +# ifndef F_GETFL +# error Please port fcntl to your platform +# endif + int flags; + ASSERT ((flags = fcntl (fd, F_GETFL)) >= 0); + return (flags & O_NONBLOCK) != 0; +# endif +} +#endif + +int +main () +{ + int use_nonblocking; + int use_cloexec; + + for (use_nonblocking = 0; use_nonblocking <= !!O_NONBLOCK; use_nonblocking++) + for (use_cloexec = 0; use_cloexec <= !!O_CLOEXEC; use_cloexec++) + { + int o_flags; + int fd[2]; + + o_flags = 0; + if (use_nonblocking) + o_flags |= O_NONBLOCK; + if (use_cloexec) + o_flags |= O_CLOEXEC; + + fd[0] = -1; + fd[1] = -1; + ASSERT (pipe2 (fd, o_flags) >= 0); + ASSERT (fd[0] >= 0); + ASSERT (fd[1] >= 0); + ASSERT (fd[0] != fd[1]); + ASSERT (is_open (fd[0])); + ASSERT (is_open (fd[1])); + if (use_cloexec) + { + ASSERT (is_cloexec (fd[0])); + ASSERT (is_cloexec (fd[1])); + } + else + { + ASSERT (!is_cloexec (fd[0])); + ASSERT (!is_cloexec (fd[1])); + } + if (use_nonblocking) + { + ASSERT (get_nonblocking_flag (fd[0]) == 1); + ASSERT (get_nonblocking_flag (fd[1]) == 1); + } + else + { + ASSERT (get_nonblocking_flag (fd[0]) == 0); + ASSERT (get_nonblocking_flag (fd[1]) == 0); + } + + ASSERT (close (fd[0]) == 0); + ASSERT (close (fd[1]) == 0); + } + + return 0; +} |