Merge from origin/emacs-24
[emacs.git] / lib / sys_time.in.h
blobc556c5db23312cdf04ff7ffbf69a2f16366dfaab
1 /* Provide a more complete sys/time.h.
3 Copyright (C) 2007-2015 Free Software Foundation, Inc.
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 3, or (at your option)
8 any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, see <http://www.gnu.org/licenses/>. */
18 /* Written by Paul Eggert. */
20 #ifndef _@GUARD_PREFIX@_SYS_TIME_H
22 #if __GNUC__ >= 3
23 @PRAGMA_SYSTEM_HEADER@
24 #endif
25 @PRAGMA_COLUMNS@
27 /* On Cygwin and on many BSDish systems, <sys/time.h> includes itself
28 recursively via <sys/select.h>.
29 Simply delegate to the system's header in this case; it is a no-op.
30 Without this extra ifdef, the C++ gettimeofday declaration below
31 would be a forward declaration in gnulib's nested <sys/time.h>. */
32 #if defined _CYGWIN_SYS_TIME_H || defined _SYS_TIME_H || defined _SYS_TIME_H_
33 # @INCLUDE_NEXT@ @NEXT_SYS_TIME_H@
34 #else
36 /* The include_next requires a split double-inclusion guard. */
37 #if @HAVE_SYS_TIME_H@
38 # @INCLUDE_NEXT@ @NEXT_SYS_TIME_H@
39 #endif
41 #ifndef _@GUARD_PREFIX@_SYS_TIME_H
42 #define _@GUARD_PREFIX@_SYS_TIME_H
44 #if ! @HAVE_SYS_TIME_H@
45 # include <time.h>
46 #endif
48 /* On native Windows with MSVC, get the 'struct timeval' type.
49 Also, on native Windows with a 64-bit time_t, where we are overriding the
50 'struct timeval' type, get all declarations of system functions whose
51 signature contains 'struct timeval'. */
52 #if (defined _MSC_VER || @REPLACE_STRUCT_TIMEVAL@) && @HAVE_WINSOCK2_H@ && !defined _GL_INCLUDING_WINSOCK2_H
53 # define _GL_INCLUDING_WINSOCK2_H
54 # include <winsock2.h>
55 # undef _GL_INCLUDING_WINSOCK2_H
56 #endif
58 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
60 /* The definition of _GL_ARG_NONNULL is copied here. */
62 /* The definition of _GL_WARN_ON_USE is copied here. */
64 #ifdef __cplusplus
65 extern "C" {
66 #endif
68 #if !@HAVE_STRUCT_TIMEVAL@ || @REPLACE_STRUCT_TIMEVAL@
70 # if @REPLACE_STRUCT_TIMEVAL@
71 # define timeval rpl_timeval
72 # endif
74 # if !GNULIB_defined_struct_timeval
75 struct timeval
77 time_t tv_sec;
78 long int tv_usec;
80 # define GNULIB_defined_struct_timeval 1
81 # endif
83 #endif
85 #ifdef __cplusplus
87 #endif
89 #if @GNULIB_GETTIMEOFDAY@
90 # if @REPLACE_GETTIMEOFDAY@
91 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
92 # undef gettimeofday
93 # define gettimeofday rpl_gettimeofday
94 # endif
95 _GL_FUNCDECL_RPL (gettimeofday, int,
96 (struct timeval *restrict, void *restrict)
97 _GL_ARG_NONNULL ((1)));
98 _GL_CXXALIAS_RPL (gettimeofday, int,
99 (struct timeval *restrict, void *restrict));
100 # else
101 # if !@HAVE_GETTIMEOFDAY@
102 _GL_FUNCDECL_SYS (gettimeofday, int,
103 (struct timeval *restrict, void *restrict)
104 _GL_ARG_NONNULL ((1)));
105 # endif
106 /* Need to cast, because on glibc systems, by default, the second argument is
107 struct timezone *. */
108 _GL_CXXALIAS_SYS_CAST (gettimeofday, int,
109 (struct timeval *restrict, void *restrict));
110 # endif
111 _GL_CXXALIASWARN (gettimeofday);
112 #elif defined GNULIB_POSIXCHECK
113 # undef gettimeofday
114 # if HAVE_RAW_DECL_GETTIMEOFDAY
115 _GL_WARN_ON_USE (gettimeofday, "gettimeofday is unportable - "
116 "use gnulib module gettimeofday for portability");
117 # endif
118 #endif
120 /* Hide some function declarations from <winsock2.h>. */
122 #if defined _MSC_VER && @HAVE_WINSOCK2_H@
123 # if !defined _@GUARD_PREFIX@_UNISTD_H
124 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
125 # undef close
126 # define close close_used_without_including_unistd_h
127 # else
128 _GL_WARN_ON_USE (close,
129 "close() used without including <unistd.h>");
130 # endif
131 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
132 # undef gethostname
133 # define gethostname gethostname_used_without_including_unistd_h
134 # else
135 _GL_WARN_ON_USE (gethostname,
136 "gethostname() used without including <unistd.h>");
137 # endif
138 # endif
139 # if !defined _@GUARD_PREFIX@_SYS_SOCKET_H
140 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
141 # undef socket
142 # define socket socket_used_without_including_sys_socket_h
143 # undef connect
144 # define connect connect_used_without_including_sys_socket_h
145 # undef accept
146 # define accept accept_used_without_including_sys_socket_h
147 # undef bind
148 # define bind bind_used_without_including_sys_socket_h
149 # undef getpeername
150 # define getpeername getpeername_used_without_including_sys_socket_h
151 # undef getsockname
152 # define getsockname getsockname_used_without_including_sys_socket_h
153 # undef getsockopt
154 # define getsockopt getsockopt_used_without_including_sys_socket_h
155 # undef listen
156 # define listen listen_used_without_including_sys_socket_h
157 # undef recv
158 # define recv recv_used_without_including_sys_socket_h
159 # undef send
160 # define send send_used_without_including_sys_socket_h
161 # undef recvfrom
162 # define recvfrom recvfrom_used_without_including_sys_socket_h
163 # undef sendto
164 # define sendto sendto_used_without_including_sys_socket_h
165 # undef setsockopt
166 # define setsockopt setsockopt_used_without_including_sys_socket_h
167 # undef shutdown
168 # define shutdown shutdown_used_without_including_sys_socket_h
169 # else
170 _GL_WARN_ON_USE (socket,
171 "socket() used without including <sys/socket.h>");
172 _GL_WARN_ON_USE (connect,
173 "connect() used without including <sys/socket.h>");
174 _GL_WARN_ON_USE (accept,
175 "accept() used without including <sys/socket.h>");
176 _GL_WARN_ON_USE (bind,
177 "bind() used without including <sys/socket.h>");
178 _GL_WARN_ON_USE (getpeername,
179 "getpeername() used without including <sys/socket.h>");
180 _GL_WARN_ON_USE (getsockname,
181 "getsockname() used without including <sys/socket.h>");
182 _GL_WARN_ON_USE (getsockopt,
183 "getsockopt() used without including <sys/socket.h>");
184 _GL_WARN_ON_USE (listen,
185 "listen() used without including <sys/socket.h>");
186 _GL_WARN_ON_USE (recv,
187 "recv() used without including <sys/socket.h>");
188 _GL_WARN_ON_USE (send,
189 "send() used without including <sys/socket.h>");
190 _GL_WARN_ON_USE (recvfrom,
191 "recvfrom() used without including <sys/socket.h>");
192 _GL_WARN_ON_USE (sendto,
193 "sendto() used without including <sys/socket.h>");
194 _GL_WARN_ON_USE (setsockopt,
195 "setsockopt() used without including <sys/socket.h>");
196 _GL_WARN_ON_USE (shutdown,
197 "shutdown() used without including <sys/socket.h>");
198 # endif
199 # endif
200 # if !defined _@GUARD_PREFIX@_SYS_SELECT_H
201 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
202 # undef select
203 # define select select_used_without_including_sys_select_h
204 # else
205 _GL_WARN_ON_USE (select,
206 "select() used without including <sys/select.h>");
207 # endif
208 # endif
209 #endif
211 #endif /* _@GUARD_PREFIX@_SYS_TIME_H */
212 #endif /* _CYGWIN_SYS_TIME_H */
213 #endif /* _@GUARD_PREFIX@_SYS_TIME_H */