cpp-d1064d

[cross.git] / i686-linux-gnu-4.7 / usr / include / x86_64-linux-gnu / sys / select.h

diff --git a/i686-linux-gnu-4.7/usr/include/x86_64-linux-gnu/sys/select.h b/i686-linux-gnu-4.7/usr/include/x86_64-linux-gnu/sys/select.h
new file mode 100644 (file)
index 0000000..6dd0c83
--- /dev/null
+++ b/i686-linux-gnu-4.7/usr/include/x86_64-linux-gnu/sys/select.h
@@ -0,0 +1,128 @@
+/* `fd_set' type and related macros, and `select'/`pselect' declarations.
+   Copyright (C) 1996-2018 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library 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.
+
+   The GNU C Library 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 the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/*     POSIX 1003.1g: 6.2 Select from File Descriptor Sets <sys/select.h>  */
+
+#ifndef _SYS_SELECT_H
+#define _SYS_SELECT_H  1
+
+#include <features.h>
+
+/* Get definition of needed basic types.  */
+#include <bits/types.h>
+
+/* Get __FD_* definitions.  */
+#include <bits/select.h>
+
+/* Get sigset_t.  */
+#include <bits/types/sigset_t.h>
+
+/* Get definition of timer specification structures.  */
+#include <bits/types/time_t.h>
+#include <bits/types/struct_timeval.h>
+#ifdef __USE_XOPEN2K
+# include <bits/types/struct_timespec.h>
+#endif
+
+#ifndef __suseconds_t_defined
+typedef __suseconds_t suseconds_t;
+# define __suseconds_t_defined
+#endif
+
+
+/* The fd_set member is required to be an array of longs.  */
+typedef long int __fd_mask;
+
+/* Some versions of <linux/posix_types.h> define this macros.  */
+#undef __NFDBITS
+/* It's easier to assume 8-bit bytes than to get CHAR_BIT.  */
+#define __NFDBITS      (8 * (int) sizeof (__fd_mask))
+#define        __FD_ELT(d)     ((d) / __NFDBITS)
+#define        __FD_MASK(d)    ((__fd_mask) (1UL << ((d) % __NFDBITS)))
+
+/* fd_set for select and pselect.  */
+typedef struct
+  {
+    /* XPG4.2 requires this member name.  Otherwise avoid the name
+       from the global namespace.  */
+#ifdef __USE_XOPEN
+    __fd_mask fds_bits[__FD_SETSIZE / __NFDBITS];
+# define __FDS_BITS(set) ((set)->fds_bits)
+#else
+    __fd_mask __fds_bits[__FD_SETSIZE / __NFDBITS];
+# define __FDS_BITS(set) ((set)->__fds_bits)
+#endif
+  } fd_set;
+
+/* Maximum number of file descriptors in `fd_set'.  */
+#define        FD_SETSIZE              __FD_SETSIZE
+
+#ifdef __USE_MISC
+/* Sometimes the fd_set member is assumed to have this type.  */
+typedef __fd_mask fd_mask;
+
+/* Number of bits per word of `fd_set' (some code assumes this is 32).  */
+# define NFDBITS               __NFDBITS
+#endif
+
+
+/* Access macros for `fd_set'.  */
+#define        FD_SET(fd, fdsetp)      __FD_SET (fd, fdsetp)
+#define        FD_CLR(fd, fdsetp)      __FD_CLR (fd, fdsetp)
+#define        FD_ISSET(fd, fdsetp)    __FD_ISSET (fd, fdsetp)
+#define        FD_ZERO(fdsetp)         __FD_ZERO (fdsetp)
+
+
+__BEGIN_DECLS
+
+/* Check the first NFDS descriptors each in READFDS (if not NULL) for read
+   readiness, in WRITEFDS (if not NULL) for write readiness, and in EXCEPTFDS
+   (if not NULL) for exceptional conditions.  If TIMEOUT is not NULL, time out
+   after waiting the interval specified therein.  Returns the number of ready
+   descriptors, or -1 for errors.
+
+   This function is a cancellation point and therefore not marked with
+   __THROW.  */
+extern int select (int __nfds, fd_set *__restrict __readfds,
+                  fd_set *__restrict __writefds,
+                  fd_set *__restrict __exceptfds,
+                  struct timeval *__restrict __timeout);
+
+#ifdef __USE_XOPEN2K
+/* Same as above only that the TIMEOUT value is given with higher
+   resolution and a sigmask which is been set temporarily.  This version
+   should be used.
+
+   This function is a cancellation point and therefore not marked with
+   __THROW.  */
+extern int pselect (int __nfds, fd_set *__restrict __readfds,
+                   fd_set *__restrict __writefds,
+                   fd_set *__restrict __exceptfds,
+                   const struct timespec *__restrict __timeout,
+                   const __sigset_t *__restrict __sigmask);
+#endif
+
+
+/* Define some inlines helping to catch common problems.  */
+#if __USE_FORTIFY_LEVEL > 0 && defined __GNUC__
+# include <bits/select2.h>
+#endif
+
+__END_DECLS
+
+#endif /* sys/select.h */