diff options
Diffstat (limited to 'gnulib/tests/test-nonblocking-socket.h')
| m--------- | gnulib | 0 | ||||
| -rw-r--r-- | gnulib/tests/test-nonblocking-socket.h | 55 |
2 files changed, 55 insertions, 0 deletions
diff --git a/gnulib b/gnulib deleted file mode 160000 -Subproject 443bc5ffcf7429e557f4a371b0661abe98ddbc1 diff --git a/gnulib/tests/test-nonblocking-socket.h b/gnulib/tests/test-nonblocking-socket.h new file mode 100644 index 0000000..944ecb1 --- /dev/null +++ b/gnulib/tests/test-nonblocking-socket.h @@ -0,0 +1,55 @@ +/* Test for nonblocking read and write. + + Copyright (C) 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 of the License, 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, see <http://www.gnu.org/licenses/>. */ + +/* A data block ought to be larger than the size of the in-kernel buffer. + Working values of SOCKET_DATA_BLOCK_SIZE, depending on kernel: + + Platform SOCKET_DATA_BLOCK_SIZE + + Linux >= 7350000 (depends on circumstances) + FreeBSD >= 107521 + OpenBSD >= 28673 + MacOS X >= 680000 (depends on circumstances) + AIX 5.1 >= 125713 + AIX 7.1 >= 200000 (depends on circumstances) + HP-UX >= 114689 + IRIX >= 61089 + OSF/1 >= 122881 + Solaris 7 >= 63000 (depends on circumstances) + Solaris 8 >= 49153 + Solaris 9 >= 73729 + Solaris 10 >= 98305 + Solaris 11 2010-11 >= 73729 + Cygwin 1.5.x >= 66294401 but then write() fails with ENOBUFS + Cygwin 1.7.x >= 163838 (depends on circumstances) + native Win32 >= 66294401 + */ +#if defined __OpenBSD__ +# define SOCKET_DATA_BLOCK_SIZE 100000 +#else +# define SOCKET_DATA_BLOCK_SIZE 1000000 +#endif + +/* On Linux, MacOS X, Cygwin 1.5.x, native Win32, + sockets have very large buffers in the kernel, so that write() calls + succeed before the reader has started reading, even if fd is blocking + and the amount of data is larger than 1 MB. */ +#if defined __linux__ || (defined __APPLE__ && defined __MACH__) || (defined _WIN32 || defined __WIN32__) || defined __CYGWIN__ +# define SOCKET_HAS_LARGE_BUFFER 1 +#else +# define SOCKET_HAS_LARGE_BUFFER 0 +#endif |