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emacs/lib/sys_time.in.h

214 lines
7.5 KiB
C

/* Provide a more complete sys/time.h.
Copyright (C) 2007-2014 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 <http://www.gnu.org/licenses/>. */
/* Written by Paul Eggert. */
#ifndef _@GUARD_PREFIX@_SYS_TIME_H
#if __GNUC__ >= 3
@PRAGMA_SYSTEM_HEADER@
#endif
@PRAGMA_COLUMNS@
/* On Cygwin and on many BSDish systems, <sys/time.h> includes itself
recursively via <sys/select.h>.
Simply delegate to the system's header in this case; it is a no-op.
Without this extra ifdef, the C++ gettimeofday declaration below
would be a forward declaration in gnulib's nested <sys/time.h>. */
#if defined _CYGWIN_SYS_TIME_H || defined _SYS_TIME_H || defined _SYS_TIME_H_
# @INCLUDE_NEXT@ @NEXT_SYS_TIME_H@
#else
/* The include_next requires a split double-inclusion guard. */
#if @HAVE_SYS_TIME_H@
# @INCLUDE_NEXT@ @NEXT_SYS_TIME_H@
#endif
#ifndef _@GUARD_PREFIX@_SYS_TIME_H
#define _@GUARD_PREFIX@_SYS_TIME_H
#if ! @HAVE_SYS_TIME_H@
# include <time.h>
#endif
/* On native Windows with MSVC, get the 'struct timeval' type.
Also, on native Windows with a 64-bit time_t, where we are overriding the
'struct timeval' type, get all declarations of system functions whose
signature contains 'struct timeval'. */
#if (defined _MSC_VER || @REPLACE_STRUCT_TIMEVAL@) && @HAVE_WINSOCK2_H@ && !defined _GL_INCLUDING_WINSOCK2_H
# define _GL_INCLUDING_WINSOCK2_H
# include <winsock2.h>
# undef _GL_INCLUDING_WINSOCK2_H
#endif
/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
/* The definition of _GL_ARG_NONNULL is copied here. */
/* The definition of _GL_WARN_ON_USE is copied here. */
#ifdef __cplusplus
extern "C" {
#endif
#if !@HAVE_STRUCT_TIMEVAL@ || @REPLACE_STRUCT_TIMEVAL@
# if @REPLACE_STRUCT_TIMEVAL@
# define timeval rpl_timeval
# endif
# if !GNULIB_defined_struct_timeval
struct timeval
{
time_t tv_sec;
long int tv_usec;
};
# define GNULIB_defined_struct_timeval 1
# endif
#endif
#ifdef __cplusplus
}
#endif
#if @GNULIB_GETTIMEOFDAY@
# if @REPLACE_GETTIMEOFDAY@
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# undef gettimeofday
# define gettimeofday rpl_gettimeofday
# endif
_GL_FUNCDECL_RPL (gettimeofday, int,
(struct timeval *restrict, void *restrict)
_GL_ARG_NONNULL ((1)));
_GL_CXXALIAS_RPL (gettimeofday, int,
(struct timeval *restrict, void *restrict));
# else
# if !@HAVE_GETTIMEOFDAY@
_GL_FUNCDECL_SYS (gettimeofday, int,
(struct timeval *restrict, void *restrict)
_GL_ARG_NONNULL ((1)));
# endif
/* Need to cast, because on glibc systems, by default, the second argument is
struct timezone *. */
_GL_CXXALIAS_SYS_CAST (gettimeofday, int,
(struct timeval *restrict, void *restrict));
# endif
_GL_CXXALIASWARN (gettimeofday);
#elif defined GNULIB_POSIXCHECK
# undef gettimeofday
# if HAVE_RAW_DECL_GETTIMEOFDAY
_GL_WARN_ON_USE (gettimeofday, "gettimeofday is unportable - "
"use gnulib module gettimeofday for portability");
# endif
#endif
/* Hide some function declarations from <winsock2.h>. */
#if defined _MSC_VER && @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
# else
_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
# else
_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
# else
_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
# if !defined _@GUARD_PREFIX@_SYS_SELECT_H
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# undef select
# define select select_used_without_including_sys_select_h
# else
_GL_WARN_ON_USE (select,
"select() used without including <sys/select.h>");
# endif
# endif
#endif
#endif /* _@GUARD_PREFIX@_SYS_TIME_H */
#endif /* _CYGWIN_SYS_TIME_H */
#endif /* _@GUARD_PREFIX@_SYS_TIME_H */