From 051f88282443f623277a2bd46c305ad562ca335c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Axel=20D=C3=B6rfler?= <axeld@pinc-software.de>
Date: Sun, 21 Sep 2003 15:51:03 +0000
Subject: [PATCH] Rewrote the resource.h header and added comments about
 missing functions and functionality.

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@4774 a95241bf-73f2-0310-859d-f6bbb57e9c96
---
 headers/posix/sys/resource.h | 79 ++++++++++++++++++++++--------------
 1 file changed, 49 insertions(+), 30 deletions(-)

diff --git a/headers/posix/sys/resource.h b/headers/posix/sys/resource.h
index ac2042e200..57ae6dcf91 100644
--- a/headers/posix/sys/resource.h
+++ b/headers/posix/sys/resource.h
@@ -1,50 +1,69 @@
 #ifndef _SYS_RESOURCE_H
 #define _SYS_RESOURCE_H
 /* 
-** Copyright 2002, Jeff Hamilton. All rights reserved.
-** Distributed under the terms of the NewOS License.
 ** Distributed under the terms of the OpenBeOS License.
 */
 
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-typedef unsigned long	rlim_t;
-
-struct rlimit {
-	rlim_t	rlim_cur;	// Current soft limit
-	rlim_t	rlim_max;	// System hard limit
-};
-
-#define RLIMIT_CORE		0
-#define RLIMIT_CPU		1
-#define	RLIMIT_DATA		2
-#define RLIMIT_FSIZE	3
-#define RLIMIT_NOFILE	4
-#define RLIMIT_STACK	5
-#define RLIMIT_AS		6
-#define RLIMIT_VMEM		7
-
-#define RLIM_INFINITY	(0xffffffffUL)
-
-int getrlimit(int resource, struct rlimit * rlp);
-int setrlimit(int resource, const struct rlimit * rlp);
 
 #include <sys/time.h>
 
+
+/* getrlimit()/setrlimit() definitions */
+
+typedef unsigned long rlim_t;
+
+struct rlimit {
+	rlim_t	rlim_cur;		/* current soft limit */
+	rlim_t	rlim_max;		/* hard limit */
+};
+
+// ToDo: the only supported mode is RLIMIT_NOFILE right now
+#define RLIMIT_CORE		0	/* size of the core file */
+#define RLIMIT_CPU		1	/* CPU time per team */
+#define	RLIMIT_DATA		2	/* data segment size */
+#define RLIMIT_FSIZE	3	/* file size */
+#define RLIMIT_NOFILE	4	/* number of open files */
+#define RLIMIT_STACK	5	/* stack size */
+#define RLIMIT_AS		6	/* address space size */
+
+#define RLIM_INFINITY	(0xffffffffUL)
+#define RLIM_SAVED_MAX	RLIM_INFINITY
+#define RLIM_SAVED_CUR	RLIM_INFINITY
+
+
+/* getrusage() definitions */
+
 struct rusage {
-	struct timeval ru_utime; // user time used
-	struct timeval ru_stime; // system time used
+	struct timeval ru_utime;	/* user time used */
+	struct timeval ru_stime;	/* system time used */
 };
 
 #define RUSAGE_SELF     0
 #define RUSAGE_CHILDREN -1
 
-int getrusage(int processes, struct rusage *rusage);
+
+/* getpriority()/setpriority() definitions */
+
+#define PRIO_PROCESS	0
+#define PRIO_PGRP		1
+#define PRIO_USER		2
+
 
 #ifdef __cplusplus
-} /* extern "C" */
+extern "C" {
 #endif
 
+extern int getrusage(int processes, struct rusage *rusage);
+
+extern int getrlimit(int resource, struct rlimit * rlp);
+extern int setrlimit(int resource, const struct rlimit * rlp);
+
+// ToDo: The following POSIX calls are missing (in BeOS as well):
+//int getpriority(int which, id_t who);
+//int setpriority(int which, id_t who, int priority);
+
+#ifdef __cplusplus
+}
 #endif
+
+#endif	/* _SYS_RESOURCE_H */