| /* Substitute for <sys/select.h>. |
| Copyright (C) 2007-2021 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, see <https://www.gnu.org/licenses/>. */ |
| |
| # if __GNUC__ >= 3 |
| @PRAGMA_SYSTEM_HEADER@ |
| # endif |
| @PRAGMA_COLUMNS@ |
| |
| /* On OSF/1 and Solaris 2.6, <sys/types.h> and <sys/time.h> |
| both include <sys/select.h>. |
| On Cygwin, <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 __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 |
| |
| /* 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 and "unknown type |
| name" problems on Cygwin. */ |
| # if !(defined __GLIBC__ || 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 |
| _GL_CXXALIAS_SYS (pselect, int, |
| (int, fd_set *restrict, fd_set *restrict, fd_set *restrict, |
| struct timespec const *restrict, const sigset_t *restrict)); |
| # endif |
| _GL_CXXALIASWARN (pselect); |
| #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 */ |
