Mercurial > hg > octave-kai > gnulib-hg
changeset 11871:35ea3cd86bec
Tests for module 'pipe2'.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sat, 22 Aug 2009 18:48:19 +0200 |
parents | ddd29d8cdded |
children | 2770463da68f |
files | ChangeLog modules/pipe2-tests tests/test-pipe2.c |
diffstat | 3 files changed, 168 insertions(+), 0 deletions(-) [+] |
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--- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,9 @@ 2009-08-22 Bruno Haible <bruno@clisp.org> + Tests for module 'pipe2'. + * modules/pipe2-tests: New file. + * tests/test-pipe2.c: New file. + New module 'pipe2'. * lib/unistd.in.h (pipe2): New declaration. * lib/pipe2.c: New file.
new file mode 100644 --- /dev/null +++ b/modules/pipe2-tests @@ -0,0 +1,11 @@ +Files: +tests/test-pipe2.c + +Depends-on: +stdbool + +configure.ac: + +Makefile.am: +TESTS += test-pipe2 +check_PROGRAMS += test-pipe2
new file mode 100644 --- /dev/null +++ b/tests/test-pipe2.c @@ -0,0 +1,153 @@ +/* Test of pipe2. + Copyright (C) 2009 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 <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> +#endif + +#include "binary-io.h" + +#define ASSERT(expr) \ + do \ + { \ + if (!(expr)) \ + { \ + fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \ + fflush (stderr); \ + abort (); \ + } \ + } \ + while (0) + +/* 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 +} + +/* Return true if FD is in non-blocking mode. */ +static bool +is_nonblocking (int fd) +{ +#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ + /* We don't use the non-blocking mode for sockets here. */ + return 0; +#else + int flags; + ASSERT ((flags = fcntl (fd, F_GETFL)) >= 0); + return (flags & O_NONBLOCK) != 0; +#endif +} + +int +main () +{ + int use_nonblocking; + int use_cloexec; + +#if !((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__) + for (use_nonblocking = 0; use_nonblocking <= 1; use_nonblocking++) +#else + use_nonblocking = 0; +#endif +#if defined O_CLOEXEC + for (use_cloexec = 0; use_cloexec <= 1; use_cloexec++) +#else + use_cloexec = 0; +#endif + { + int o_flags; + int fd[2]; + + o_flags = 0; +#if !((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__) + if (use_nonblocking) + o_flags |= O_NONBLOCK; +#endif +#if defined O_CLOEXEC + if (use_cloexec) + o_flags |= O_CLOEXEC; +#endif + + 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]) >= 0); + ASSERT (is_open (fd[1]) >= 0); + 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 (is_nonblocking (fd[0])); + ASSERT (is_nonblocking (fd[1])); + } + else + { + ASSERT (!is_nonblocking (fd[0])); + ASSERT (!is_nonblocking (fd[1])); + } + } + + return 0; +}