xref: /dragonfly/sys/sys/ckpt.h (revision 23265324)
1 /*-
2  * Copyright (c) 2003 Kip Macy All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  * 1. Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23  * SUCH DAMAGE.
24  *
25  * $DragonFly: src/sys/sys/ckpt.h,v 1.9 2006/12/23 00:27:03 swildner Exp $
26  */
27 #ifndef _SYS_CKPT_H_
28 #define _SYS_CKPT_H_
29 
30 #if !defined(_KERNEL) && !defined(_KERNEL_STRUCTURES)
31 
32 #error "This file should not be included by userland programs."
33 
34 #else
35 
36 #ifndef _SYS_TYPES_H_
37 #include <sys/types.h>
38 #endif
39 #ifndef _SYS_MOUNT_H_
40 #include <sys/mount.h>
41 #endif
42 #ifndef _SYS_PROC_H_
43 #include <sys/proc.h>
44 #endif
45 #ifndef _SYS_SIGNALVAR_H_
46 #include <sys/signalvar.h>
47 #endif
48 
49 #define CKPT_MAXTHREADS	256
50 
51 struct ckpt_filehdr {
52 	int		cfh_magic;	/* XXX implement */
53 	int		cfh_nfiles;
54 	int		cfh_reserved[8];
55 };
56 
57 struct ckpt_vminfo {
58 	segsz_t		cvm_dsize;
59 	segsz_t		cvm_tsize;
60 	segsz_t		cvm_reserved1[4];
61 	caddr_t		cvm_daddr;
62 	caddr_t		cvm_taddr;
63 	caddr_t		cvm_reserved2[4];
64 };
65 
66 struct ckpt_fileinfo {
67 	int		cfi_index;
68 	u_int		cfi_flags;	/* saved f_flag	*/
69 	off_t		cfi_offset;	/* saved f_offset */
70 	fhandle_t	cfi_fh;
71 	int		cfi_type;
72 	int		cfi_reserved[7];
73 };
74 
75 struct ckpt_siginfo {
76 	int		csi_ckptpisz;
77 	struct procsig	csi_procsig;
78 	struct sigacts	csi_sigacts;
79 	struct itimerval csi_itimerval;
80 	int		csi_sigparent;
81 	sigset_t	csi_sigmask;
82 	int		csi_reserved[6];
83 };
84 
85 /*
86  * Elf_Phdr is based on the inclusion of elf32 or elf64.  If neither was
87  * included, we don't know what to do with it.  If the source needs the
88  * structure, generate a compile-time error.
89  */
90 #ifdef __ELF_WORD_SIZE
91 
92 struct vn_hdr {
93 	fhandle_t	vnh_fh;
94 	Elf_Phdr	vnh_phdr;
95 	int		vnh_reserved[8];
96 };
97 
98 #endif
99 
100 #ifdef _KERNEL
101 #ifdef DEBUG
102 #define	TRACE_ENTER kprintf("entering %s at %s:%d\n", __func__, __FILE__, __LINE__)
103 #define	TRACE_EXIT kprintf("exiting %s at %s:%d\n", __func__, __FILE__, __LINE__)
104 #define	TRACE_ERR kprintf("failure encountered in %s at %s:%d\n", __func__, __FILE__, __LINE__)
105 #define PRINTF(args) kprintf args
106 #else
107 #define TRACE_ENTER
108 #define TRACE_EXIT
109 #define TRACE_ERR
110 #define PRINTF(args)
111 #endif	/* DEBUG */
112 #endif	/* _KERNEL */
113 
114 #endif	/* _KERNEL || _KERNEL_STRUCTURES */
115 #endif	/* _SYS_CKPT_H_ */
116