diff packages/isoinfra/current/include/limits.h @ 115:6ed91473a1cd ecos-sw-2000-08-21

Merge from eCos master repository on 2000-08-21-22:40:54-BST
author jlarmour
date Fri, 25 Aug 2000 17:32:38 +0000
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+#ifndef CYGONCE_ISO_LIMITS_H
+#define CYGONCE_ISO_LIMITS_H
+/*========================================================================
+//
+//      limits.h
+//
+//      ISO standard limits
+//
+//========================================================================
+//####COPYRIGHTBEGIN####
+//                                                                          
+// -------------------------------------------                              
+// The contents of this file are subject to the Red Hat eCos Public License 
+// Version 1.1 (the "License"); you may not use this file except in         
+// compliance with the License.  You may obtain a copy of the License at    
+// http://www.redhat.com/                                                   
+//                                                                          
+// Software distributed under the License is distributed on an "AS IS"      
+// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the 
+// License for the specific language governing rights and limitations under 
+// the License.                                                             
+//                                                                          
+// The Original Code is eCos - Embedded Configurable Operating System,      
+// released September 30, 1998.                                             
+//                                                                          
+// The Initial Developer of the Original Code is Red Hat.                   
+// Portions created by Red Hat are                                          
+// Copyright (C) 1998, 1999, 2000 Red Hat, Inc.                             
+// All Rights Reserved.                                                     
+// -------------------------------------------                              
+//                                                                          
+//####COPYRIGHTEND####
+//========================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s):     jlarmour
+// Contributors:  
+// Date:          2000-04-14
+// Purpose:       This file provides the limits properties
+//                required by ISO C and POSIX 1003.1
+// Description:   The real contents of this file get set from the
+//                configuration (set by the implementation), as well as
+//                being partially provided by the compiler.
+//
+// Usage:         #include <limits.h>
+//
+//####DESCRIPTIONEND####
+//
+//======================================================================
+*/
+
+/* CONFIGURATION */
+
+#include <pkgconf/isoinfra.h>          /* Configuration header */
+
+/* DEFINES */
+
+/*-----------------------------------------------------------------------------
+ * Minimum values from POSIX.1 tables 2-3, 2-7 and 2-7a.
+
+ * These are the standard-mandated minimum values.
+ * These values do not vary with the implementation - they may
+ * simply be defined
+ */
+
+/* Minimum number of operations in one list I/O call.  */
+#define _POSIX_AIO_LISTIO_MAX	2
+
+/* Minimal number of outstanding asynchronous I/O operations.  */
+#define _POSIX_AIO_MAX		1
+
+/* Maximum length of arguments to `execve', including environment.  */
+#define	_POSIX_ARG_MAX		4096
+
+/* Maximum simultaneous processes per real user ID.  */
+#define	_POSIX_CHILD_MAX	6
+
+/* Minimal number of timer expiration overruns.  */
+#define _POSIX_DELAYTIMER_MAX	32
+
+/* Maximum link count of a file.  */
+#define	_POSIX_LINK_MAX		8
+
+/* Size of storage required for a login name */
+#define _POSIX_LOGIN_NAME_MAX   9
+
+/* Number of bytes in a terminal canonical input queue.  */
+#define	_POSIX_MAX_CANON	255
+
+/* Number of bytes for which space will be
+   available in a terminal input queue.  */
+#define	_POSIX_MAX_INPUT	255
+
+/* Maximum number of message queues open for a process.  */
+#define _POSIX_MQ_OPEN_MAX	8
+
+/* Maximum number of supported message priorities.  */
+#define _POSIX_MQ_PRIO_MAX	32
+
+/* Number of bytes in a filename.  */
+#define	_POSIX_NAME_MAX		14
+
+/* Number of simultaneous supplementary group IDs per process.  */
+#define	_POSIX_NGROUPS_MAX	0
+
+/* Number of files one process can have open at once.  */
+#define	_POSIX_OPEN_MAX		16
+
+/* Number of bytes in a pathname.  */
+#define	_POSIX_PATH_MAX		255
+
+/* Number of bytes than can be written atomically to a pipe.  */
+#define	_POSIX_PIPE_BUF		512
+
+/* Minimal number of realtime signals reserved for the application.  */
+#define _POSIX_RTSIG_MAX	8
+
+/* Number of semaphores a process can have.  */
+#define _POSIX_SEM_NSEMS_MAX	256
+
+/* Maximal value of a semaphore.  */
+#define _POSIX_SEM_VALUE_MAX	32767
+
+/* Number of pending realtime signals.  */
+#define _POSIX_SIGQUEUE_MAX	32
+
+/* Largest value of a `ssize_t'.  */
+#define	_POSIX_SSIZE_MAX	32767
+
+/* Number of streams a process can have open at once.  */
+#define	_POSIX_STREAM_MAX	8
+
+/* Controlling the iterations of destructors for thread-specific data.  */
+#define _POSIX_THREAD_DESTRUCTOR_ITERATIONS	4
+
+/* The number of data keys per process.  */
+#define _POSIX_THREAD_KEYS_MAX	128
+
+/* The number of threads per process.  */
+#define _POSIX_THREAD_THREADS_MAX	64
+
+/* Maximum number of characters in a tty name.  */
+#define	_POSIX_TTY_NAME_MAX	9
+
+/* Number of timer for a process.  */
+#define _POSIX_TIMER_MAX	32
+
+/* Maximum length of a timezone name (element of `tzname').  */
+#define	_POSIX_TZNAME_MAX	3
+
+/* Maximum clock resolution in nanoseconds.  */
+#define _POSIX_CLOCKRES_MIN	20000000
+
+
+#ifdef CYGBLD_ISO_SSIZET_HEADER
+# include CYGBLD_ISO_SSIZET_HEADER
+#else
+# ifndef __STRICT_ANSI__
+#  define SSIZE_MAX LONG_MAX
+# endif
+#endif
+
+/* INCLUDES */
+
+#if CYGINT_ISO_POSIX_LIMITS
+# ifdef CYGBLD_ISO_POSIX_LIMITS_HEADER
+#  include CYGBLD_ISO_POSIX_LIMITS_HEADER
+# endif
+#endif
+
+#include_next <limits.h>
+
+#endif /* CYGONCE_ISO_LIMITS_H multiple inclusion protection */
+
+/* EOF limits.h */