From: ceriel <none@none>
Date: Thu, 19 Sep 1991 09:05:20 +0000 (+0000)
Subject: Added types.h
X-Git-Tag: release-5-5~847
X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=e5cd7399e555e806be2a4022529ae0e7a28d013c;p=ack.git

Added types.h
---

diff --git a/lib/minix/include/sys/.distr b/lib/minix/include/sys/.distr
index 2c136ecf3..3ecec3532 100644
--- a/lib/minix/include/sys/.distr
+++ b/lib/minix/include/sys/.distr
@@ -1,3 +1,4 @@
 dir.h
 times.h
 wait.h
+types.h
diff --git a/lib/minix/include/sys/types.h b/lib/minix/include/sys/types.h
new file mode 100644
index 000000000..de5a9b9e8
--- /dev/null
+++ b/lib/minix/include/sys/types.h
@@ -0,0 +1,50 @@
+/* The <sys/types.h> header contains important data type definitions.
+ * It is considered good programming practice to use these definitions, 
+ * instead of the underlying base type.  By convention, all type names end 
+ * with _t.
+ */
+
+#ifndef _TYPES_H
+#define _TYPES_H
+
+/* The type size_t holds the result of the size_of operator.  This type is
+ * 'unsigned int', in order to be compatible with the old library (f.i. the
+ * argument of malloc was an unsigned int, and is now a size_t).  This means
+ * that a 70K array can not be allocated.
+ */
+#ifndef _SIZE_T
+#define _SIZE_T
+typedef unsigned int size_t;	/* type returned by sizeof */
+#endif
+
+#ifndef _TIME_T
+#define _TIME_T
+typedef long time_t;		/* time in sec since 1 Jan 1970 0000 GMT */
+#endif
+
+/* Types used in disk, inode, etc. data structures. */
+typedef short	       dev_t;	/* holds (major|minor) device pair */
+typedef char	       gid_t;	/* group id */
+typedef unsigned short ino_t;	/* i-node number */
+typedef short	      mode_t;	/* mode number within an i-node */
+typedef char	     nlink_t;	/* number-of-links field within an i-node */
+typedef long	       off_t;	/* offsets within a file */
+typedef int	       pid_t;	/* type for pids (must be signed) */
+typedef short	       uid_t;	/* user id */
+typedef long	      zone_t;	/* holds a zone number */
+typedef long	     block_t;	/* block number */
+typedef long	       bit_t;	/* used for bit number in a bit map */
+
+/* The following types are needed because MINIX uses K&R style function
+ * definitions (for maximum portability).  When a short, such as dev_t, is
+ * passed to a function with a K&R definition, the compiler automatically
+ * promotes it to an int.  The prototype must contain an int as the parameter,
+ * not a short, because an int is what an old-style function definition
+ * expects.  Thus using dev_t in a prototype would be incorrect.  It would be
+ * sufficient to just use int instead of dev_t in the prototypes, but Dev_t
+ * is clearer.
+ */
+typedef int	Dev_t;
+typedef int	Mode_t;
+
+#endif /* _TYPES_H */