1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright 2008 Sun Microsystems, Inc. All rights reserved
30 * Use is subject to license terms.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * libcfs/include/libcfs/user-prim.h
38 * Author: Nikita Danilov <nikita@clusterfs.com>
41 #ifndef __LIBCFS_USER_PRIM_H__
42 #define __LIBCFS_USER_PRIM_H__
44 #ifndef __LIBCFS_LIBCFS_H__
45 #error Do not #include this file directly. #include <libcfs/libcfs.h> instead
48 /* Implementations of portable APIs for liblustre */
51 * liblustre is single-threaded, so most "synchronization" APIs are trivial.
56 typedef struct proc_dir_entry cfs_proc_dir_entry_t;
59 * Just present a single processor until will add thread support.
61 #ifndef smp_processor_id
62 #define cfs_smp_processor_id() 0
64 #define cfs_smp_processor_id() smp_processor_id()
66 #ifndef num_online_cpus
67 #define cfs_num_online_cpus() 1
69 #define cfs_num_online_cpus() num_online_cpus()
71 #ifndef num_possible_cpus
72 #define cfs_num_possible_cpus() 1
74 #define cfs_num_possible_cpus() num_possible_cpus()
81 typedef struct cfs_waitlink {
86 typedef struct cfs_waitq {
93 typedef long cfs_task_state_t;
95 #define CFS_TASK_INTERRUPTIBLE (0)
96 #define CFS_TASK_UNINT (1)
97 #define CFS_TASK_RUNNING (2)
103 typedef int (cfs_read_proc_t)(char *page, char **start, off_t off,
104 int count, int *eof, void *data);
106 struct file; /* forward ref */
107 typedef int (cfs_write_proc_t)(struct file *file, const char *buffer,
108 unsigned long count, void *data);
113 typedef sigset_t cfs_sigset_t;
121 void (*function)(ulong_ptr_t unused);
127 #define cfs_in_interrupt() (0)
129 typedef void cfs_psdev_t;
131 static inline int cfs_psdev_register(cfs_psdev_t *foo)
136 static inline int cfs_psdev_deregister(cfs_psdev_t *foo)
141 #define cfs_lock_kernel() do {} while (0)
142 #define cfs_sigfillset(l) do {} while (0)
143 #define cfs_recalc_sigpending(l) do {} while (0)
144 /* Fine, crash, but stop giving me compile warnings */
145 #define cfs_kernel_thread(l,m,n) (LBUG(), (int)l)
146 #define cfs_kthread_run(fn,d,fmt,...) LBUG()
148 #ifdef HAVE_LIBPTHREAD
149 typedef int (*cfs_thread_t)(void *);
150 int cfs_create_thread(cfs_thread_t func, void *arg);
152 #define cfs_create_thread(l,m) LBUG()
155 uid_t cfs_curproc_uid(void);
156 gid_t cfs_curproc_gid(void);
157 uid_t cfs_curproc_fsuid(void);
158 gid_t cfs_curproc_fsgid(void);
160 #define LIBCFS_REALLOC(ptr, size) realloc(ptr, size)
162 #define cfs_online_cpus() sysconf(_SC_NPROCESSORS_ONLN)
164 // static inline void local_irq_save(unsigned long flag) {return;}
165 // static inline void local_irq_restore(unsigned long flag) {return;}
168 CFS_STACK_TRACE_DEPTH = 16
171 struct cfs_stack_trace {
172 void *frame[CFS_STACK_TRACE_DEPTH];
178 #ifndef do_div /* gcc only, platform-specific will override */
179 #define do_div(a,b) \
181 unsigned long remainder;\
182 remainder = (a) % (b); \
191 typedef struct cfs_group_info {
196 # define min(x,y) ((x)<(y) ? (x) : (y))
200 # define max(x,y) ((x)>(y) ? (x) : (y))
203 /* utility libcfs init/fini entries */
205 extern int libcfs_arch_init(void);
206 extern void libcfs_arch_cleanup(void);
207 #else /* !__WINNT__ */
208 static inline int libcfs_arch_init(void) {
211 static inline void libcfs_arch_cleanup(void) {
216 /* proc interface wrappers for non-win OS */
218 #define cfs_proc_open open
219 #define cfs_proc_mknod mknod
220 #define cfs_proc_ioctl ioctl
221 #define cfs_proc_close close
222 #define cfs_proc_read read
223 #define cfs_proc_write write
224 #define cfs_proc_fopen fopen
225 #define cfs_proc_fclose fclose
226 #define cfs_proc_fgets fgets
233 /* __LIBCFS_USER_PRIM_H__ */
237 * c-indentation-style: "K&R"