diff options
Diffstat (limited to 'lib/sys_select.in.h')
| -rw-r--r-- | lib/sys_select.in.h | 346 |
1 files changed, 346 insertions, 0 deletions
diff --git a/lib/sys_select.in.h b/lib/sys_select.in.h new file mode 100644 index 0000000..3abfc48 --- /dev/null +++ b/lib/sys_select.in.h @@ -0,0 +1,346 @@ +/* Substitute for <sys/select.h>. + Copyright (C) 2007-2023 Free Software Foundation, Inc. + + This file is free software: you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + This file 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 Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with this program. If not, see <https://www.gnu.org/licenses/>. */ + +# if __GNUC__ >= 3 +@PRAGMA_SYSTEM_HEADER@ +# endif +@PRAGMA_COLUMNS@ + +/* This file uses #include_next of a system file that defines time_t. + For the 'year2038' module to work right, <config.h> needs to have been + included before. */ +#if !_GL_CONFIG_H_INCLUDED + #error "Please include config.h first." +#endif + +/* On OSF/1 and Solaris 2.6, <sys/types.h> and <sys/time.h> + both include <sys/select.h>. + On Cygwin and OpenBSD, <sys/time.h> includes <sys/select.h>. + Simply delegate to the system's header in this case. */ +#if (@HAVE_SYS_SELECT_H@ \ + && !defined _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TYPES_H \ + && ((defined __osf__ && defined _SYS_TYPES_H_ \ + && defined _OSF_SOURCE) \ + || (defined __sun && defined _SYS_TYPES_H \ + && (! (defined _XOPEN_SOURCE || defined _POSIX_C_SOURCE) \ + || defined __EXTENSIONS__)))) + +# define _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TYPES_H +# @INCLUDE_NEXT@ @NEXT_SYS_SELECT_H@ + +#elif (@HAVE_SYS_SELECT_H@ \ + && (defined _CYGWIN_SYS_TIME_H \ + || (!defined _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TIME_H \ + && ((defined __osf__ && defined _SYS_TIME_H_ \ + && defined _OSF_SOURCE) \ + || (defined __OpenBSD__ && defined _SYS_TIME_H_) \ + || (defined __sun && defined _SYS_TIME_H \ + && (! (defined _XOPEN_SOURCE \ + || defined _POSIX_C_SOURCE) \ + || defined __EXTENSIONS__)))))) + +# define _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TIME_H +# @INCLUDE_NEXT@ @NEXT_SYS_SELECT_H@ + +/* On IRIX 6.5, <sys/timespec.h> includes <sys/types.h>, which includes + <sys/bsd_types.h>, which includes <sys/select.h>. At this point we cannot + include <signal.h>, because that includes <internal/signal_core.h>, which + gives a syntax error because <sys/timespec.h> has not been completely + processed. Simply delegate to the system's header in this case. */ +#elif @HAVE_SYS_SELECT_H@ && defined __sgi && (defined _SYS_BSD_TYPES_H && !defined _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_BSD_TYPES_H) + +# define _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_BSD_TYPES_H +# @INCLUDE_NEXT@ @NEXT_SYS_SELECT_H@ + +/* On OpenBSD 5.0, <pthread.h> includes <sys/types.h>, which includes + <sys/select.h>. At this point we cannot include <signal.h>, because that + includes gnulib's pthread.h override, which gives a syntax error because + /usr/include/pthread.h has not been completely processed. Simply delegate + to the system's header in this case. */ +#elif @HAVE_SYS_SELECT_H@ && defined __OpenBSD__ && (defined _PTHREAD_H_ && !defined PTHREAD_MUTEX_INITIALIZER) + +# @INCLUDE_NEXT@ @NEXT_SYS_SELECT_H@ + +#else + +#ifndef _@GUARD_PREFIX@_SYS_SELECT_H + +/* This file uses GNULIB_POSIXCHECK, HAVE_RAW_DECL_*. */ +#if !_GL_CONFIG_H_INCLUDED + #error "Please include config.h first." +#endif + +/* On many platforms, <sys/select.h> assumes prior inclusion of + <sys/types.h>. Also, mingw defines sigset_t there, instead of + in <signal.h> where it belongs. */ +#include <sys/types.h> + +#if @HAVE_SYS_SELECT_H@ + +/* On OSF/1 4.0, <sys/select.h> provides only a forward declaration + of 'struct timeval', and no definition of this type. + Also, Mac OS X, AIX, HP-UX, IRIX, Solaris, Interix declare select() + in <sys/time.h>. + But avoid namespace pollution on glibc systems, a circular include + <sys/select.h> -> <sys/time.h> -> <sys/select.h> on FreeBSD 13.1, and + "unknown type name" problems on Cygwin. */ +# if !(defined __GLIBC__ || defined __FreeBSD__ || defined __CYGWIN__) +# include <sys/time.h> +# endif + +/* On AIX 7 and Solaris 10, <sys/select.h> provides an FD_ZERO implementation + that relies on memset(), but without including <string.h>. + But in any case avoid namespace pollution on glibc systems. */ +# if (defined __OpenBSD__ || defined _AIX || defined __sun || defined __osf__ || defined __BEOS__) \ + && ! defined __GLIBC__ +# include <string.h> +# endif + +/* The include_next requires a split double-inclusion guard. */ +# @INCLUDE_NEXT@ @NEXT_SYS_SELECT_H@ + +#endif + +/* Get definition of 'sigset_t'. + But avoid namespace pollution on glibc systems and "unknown type + name" problems on Cygwin. + On OS/2 kLIBC, sigset_t is defined in <sys/select.h>, too. In addition, + if <sys/param.h> is included, <types.h> -> <sys/types.h> -> <sys/select.h> + are included. Then <signal.h> -> <pthread.h> are included by GNULIB. By the + way, <pthread.h> requires PAGE_SIZE defined in <sys/param.h>. However, + <sys/param.h> has not been processed, yet. As a result, 'PAGE_SIZE' + undeclared error occurs in <pthread.h>. + Do this after the include_next (for the sake of OpenBSD 5.0) but before + the split double-inclusion guard (for the sake of Solaris). */ +#if !((defined __GLIBC__ || defined __CYGWIN__ || defined __KLIBC__) \ + && !defined __UCLIBC__) +# include <signal.h> +#endif + +#ifndef _@GUARD_PREFIX@_SYS_SELECT_H +#define _@GUARD_PREFIX@_SYS_SELECT_H + +#if !@HAVE_SYS_SELECT_H@ +/* A platform that lacks <sys/select.h>. */ +/* Get the 'struct timeval' and 'fd_set' types and the FD_* macros + on most platforms. */ +# include <sys/time.h> +/* On HP-UX 11, <sys/time.h> provides an FD_ZERO implementation + that relies on memset(), but without including <string.h>. */ +# if defined __hpux +# include <string.h> +# endif +/* On native Windows platforms: + Get the 'fd_set' type. + Get the close() declaration before we override it. */ +# if @HAVE_WINSOCK2_H@ +# if !defined _GL_INCLUDING_WINSOCK2_H +# define _GL_INCLUDING_WINSOCK2_H +# include <winsock2.h> +# undef _GL_INCLUDING_WINSOCK2_H +# endif +# include <io.h> +# endif +#endif + +/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ + +/* The definition of _GL_WARN_ON_USE is copied here. */ + + +/* Fix some definitions from <winsock2.h>. */ + +#if @HAVE_WINSOCK2_H@ + +# if !GNULIB_defined_rpl_fd_isset + +/* Re-define FD_ISSET to avoid a WSA call while we are not using + network sockets. */ +static int +rpl_fd_isset (SOCKET fd, fd_set * set) +{ + u_int i; + if (set == NULL) + return 0; + + for (i = 0; i < set->fd_count; i++) + if (set->fd_array[i] == fd) + return 1; + + return 0; +} + +# define GNULIB_defined_rpl_fd_isset 1 +# endif + +# undef FD_ISSET +# define FD_ISSET(fd, set) rpl_fd_isset(fd, set) + +#endif + +/* Hide some function declarations from <winsock2.h>. */ + +#if @HAVE_WINSOCK2_H@ +# if !defined _@GUARD_PREFIX@_UNISTD_H +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef close +# define close close_used_without_including_unistd_h +# elif !defined __clang__ + _GL_WARN_ON_USE (close, + "close() used without including <unistd.h>"); +# endif +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef gethostname +# define gethostname gethostname_used_without_including_unistd_h +# elif !defined __clang__ + _GL_WARN_ON_USE (gethostname, + "gethostname() used without including <unistd.h>"); +# endif +# endif +# if !defined _@GUARD_PREFIX@_SYS_SOCKET_H +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef socket +# define socket socket_used_without_including_sys_socket_h +# undef connect +# define connect connect_used_without_including_sys_socket_h +# undef accept +# define accept accept_used_without_including_sys_socket_h +# undef bind +# define bind bind_used_without_including_sys_socket_h +# undef getpeername +# define getpeername getpeername_used_without_including_sys_socket_h +# undef getsockname +# define getsockname getsockname_used_without_including_sys_socket_h +# undef getsockopt +# define getsockopt getsockopt_used_without_including_sys_socket_h +# undef listen +# define listen listen_used_without_including_sys_socket_h +# undef recv +# define recv recv_used_without_including_sys_socket_h +# undef send +# define send send_used_without_including_sys_socket_h +# undef recvfrom +# define recvfrom recvfrom_used_without_including_sys_socket_h +# undef sendto +# define sendto sendto_used_without_including_sys_socket_h +# undef setsockopt +# define setsockopt setsockopt_used_without_including_sys_socket_h +# undef shutdown +# define shutdown shutdown_used_without_including_sys_socket_h +# elif !defined __clang__ + _GL_WARN_ON_USE (socket, + "socket() used without including <sys/socket.h>"); + _GL_WARN_ON_USE (connect, + "connect() used without including <sys/socket.h>"); + _GL_WARN_ON_USE (accept, + "accept() used without including <sys/socket.h>"); + _GL_WARN_ON_USE (bind, + "bind() used without including <sys/socket.h>"); + _GL_WARN_ON_USE (getpeername, + "getpeername() used without including <sys/socket.h>"); + _GL_WARN_ON_USE (getsockname, + "getsockname() used without including <sys/socket.h>"); + _GL_WARN_ON_USE (getsockopt, + "getsockopt() used without including <sys/socket.h>"); + _GL_WARN_ON_USE (listen, + "listen() used without including <sys/socket.h>"); + _GL_WARN_ON_USE (recv, + "recv() used without including <sys/socket.h>"); + _GL_WARN_ON_USE (send, + "send() used without including <sys/socket.h>"); + _GL_WARN_ON_USE (recvfrom, + "recvfrom() used without including <sys/socket.h>"); + _GL_WARN_ON_USE (sendto, + "sendto() used without including <sys/socket.h>"); + _GL_WARN_ON_USE (setsockopt, + "setsockopt() used without including <sys/socket.h>"); + _GL_WARN_ON_USE (shutdown, + "shutdown() used without including <sys/socket.h>"); +# endif +# endif +#endif + + +#if @GNULIB_PSELECT@ +# if @REPLACE_PSELECT@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef pselect +# define pselect rpl_pselect +# endif +_GL_FUNCDECL_RPL (pselect, int, + (int, fd_set *restrict, fd_set *restrict, fd_set *restrict, + struct timespec const *restrict, const sigset_t *restrict)); +_GL_CXXALIAS_RPL (pselect, int, + (int, fd_set *restrict, fd_set *restrict, fd_set *restrict, + struct timespec const *restrict, const sigset_t *restrict)); +# else +# if !@HAVE_PSELECT@ +_GL_FUNCDECL_SYS (pselect, int, + (int, fd_set *restrict, fd_set *restrict, fd_set *restrict, + struct timespec const *restrict, const sigset_t *restrict)); +# endif +/* Need to cast, because on AIX 7, the second, third, fourth argument may be + void *restrict, void *restrict, void *restrict. */ +_GL_CXXALIAS_SYS_CAST (pselect, int, + (int, + fd_set *restrict, fd_set *restrict, fd_set *restrict, + struct timespec const *restrict, + const sigset_t *restrict)); +# endif +# if __GLIBC__ >= 2 +_GL_CXXALIASWARN (pselect); +# endif +#elif defined GNULIB_POSIXCHECK +# undef pselect +# if HAVE_RAW_DECL_PSELECT +_GL_WARN_ON_USE (pselect, "pselect is not portable - " + "use gnulib module pselect for portability"); +# endif +#endif + +#if @GNULIB_SELECT@ +# if @REPLACE_SELECT@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef select +# define select rpl_select +# endif +_GL_FUNCDECL_RPL (select, int, + (int, fd_set *restrict, fd_set *restrict, fd_set *restrict, + struct timeval *restrict)); +_GL_CXXALIAS_RPL (select, int, + (int, fd_set *restrict, fd_set *restrict, fd_set *restrict, + timeval *restrict)); +# else +_GL_CXXALIAS_SYS (select, int, + (int, fd_set *restrict, fd_set *restrict, fd_set *restrict, + timeval *restrict)); +# endif +_GL_CXXALIASWARN (select); +#elif @HAVE_WINSOCK2_H@ +# undef select +# define select select_used_without_requesting_gnulib_module_select +#elif defined GNULIB_POSIXCHECK +# undef select +# if HAVE_RAW_DECL_SELECT +_GL_WARN_ON_USE (select, "select is not always POSIX compliant - " + "use gnulib module select for portability"); +# endif +#endif + + +#endif /* _@GUARD_PREFIX@_SYS_SELECT_H */ +#endif /* _@GUARD_PREFIX@_SYS_SELECT_H */ +#endif /* OSF/1 */ |