xnu-2422.1.72.tar.gz

[apple/xnu.git] / bsd / sys / syslimits.h

diff --git a/bsd/sys/syslimits.h b/bsd/sys/syslimits.h
index 8719ad3c6a18c474d92148bf0e9970903e00f424..56528fa2ad81e491afa3b18d605f444296f4a8f2 100644 (file)
--- a/bsd/sys/syslimits.h
+++ b/bsd/sys/syslimits.h
@@ -65,21 +65,29 @@
 #ifndef _SYS_SYSLIMITS_H_
 #define _SYS_SYSLIMITS_H_
 
+#include <sys/cdefs.h>
+
 #if !defined(_ANSI_SOURCE)
 /*
  * Note: CHILD_MAX *must* be less than hard_maxproc, which is set at
  * compile time; you *cannot* set it higher than the hard limit!!
  */
 #define        ARG_MAX            (256 * 1024) /* max bytes for an exec function */
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
 #define        CHILD_MAX                  266  /* max simultaneous processes */
 #define        GID_MAX            2147483647U  /* max value for a gid_t (2^31-2) */
+#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
 #define        LINK_MAX                32767   /* max file link count */
-#define        MAX_CANON                 255   /* max bytes in term canon input line */
-#define        MAX_INPUT                 255   /* max bytes in terminal input */
+#define        MAX_CANON                1024   /* max bytes in term canon input line */
+#define        MAX_INPUT                1024   /* max bytes in terminal input */
 #define        NAME_MAX                  255   /* max bytes in a file name */
 #define        NGROUPS_MAX                16   /* max supplemental group id's */
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
 #define        UID_MAX            2147483647U  /* max value for a uid_t (2^31-2) */
-#define        OPEN_MAX                10240   /* max open files per process */
+
+#define        OPEN_MAX                10240   /* max open files per process - todo, make a config option? */
+
+#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
 #define        PATH_MAX                 1024   /* max bytes in pathname */
 #define        PIPE_BUF                  512   /* max bytes for atomic pipe writes */
 
@@ -87,11 +95,23 @@
 #define        BC_DIM_MAX               2048   /* max array elements in bc(1) */
 #define        BC_SCALE_MAX               99   /* max scale value in bc(1) */
 #define        BC_STRING_MAX            1000   /* max const string length in bc(1) */
+#define        CHARCLASS_NAME_MAX         14   /* max character class name size */
 #define        COLL_WEIGHTS_MAX            2   /* max weights for order keyword */
 #define        EQUIV_CLASS_MAX             2
 #define        EXPR_NEST_MAX              32   /* max expressions nested in expr(1) */
 #define        LINE_MAX                 2048   /* max bytes in an input line */
 #define        RE_DUP_MAX                255   /* max RE's in interval notation */
+
+#if __DARWIN_UNIX03
+#define        NZERO                      20   /* default priority [XSI] */
+                                       /* = ((PRIO_MAX - PRIO_MIN) / 2) + 1 */
+                                       /* range: 0 - 39 [(2 * NZERO) - 1] */
+                                       /* 0 is not actually used */
+#else /* !__DARWIN_UNIX03 */
+#define        NZERO                       0   /* default priority */
+                                       /* range: -20 - 20 */
+                                       /* (PRIO_MIN - PRIO_MAX) */
+#endif /* __DARWIN_UNIX03 */
 #endif /* !_ANSI_SOURCE */
 
 #endif /* !_SYS_SYSLIMITS_H_ */