sys/sys/ckpt.h

   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
  26 #ifndef _SYS_CKPT_H_
  27 #define _SYS_CKPT_H_
  28
  29 #if !defined(_KERNEL) && !defined(_KERNEL_STRUCTURES)
  30 #error "This file should not be included by userland programs."
  31 #endif
  32
  33 #ifndef _SYS_TYPES_H_
  34 #include <sys/types.h>
  35 #endif
  36 #ifndef _SYS_MOUNT_H_
  37 #include <sys/mount.h>
  38 #endif
  39 #ifndef _SYS_SIGNALVAR_H_
  40 #include <sys/signalvar.h>
  41 #endif
  42
  43 #define CKPT_MAXTHREADS 256
  44
  45 struct ckpt_filehdr {
  46         int             cfh_magic;      /* XXX implement */
  47         int             cfh_nfiles;
  48         int             cfh_reserved[8];
  49 };
  50
  51 struct ckpt_vminfo {
  52         segsz_t         cvm_dsize;      /* in pages */
  53         segsz_t         cvm_tsize;      /* in pages */
  54         segsz_t         cvm_reserved1[4];
  55         caddr_t         cvm_daddr;
  56         caddr_t         cvm_taddr;
  57         caddr_t         cvm_reserved2[4];
  58 };
  59
  60 struct ckpt_fileinfo {
  61         int             cfi_index;
  62         u_int           cfi_flags;      /* saved f_flag */
  63         off_t           cfi_offset;     /* saved f_offset */
  64         fhandle_t       cfi_fh;
  65         int             cfi_type;
  66         int             cfi_ckflags;
  67         int             cfi_reserved[6];
  68 };
  69
  70 #define CKFIF_ISCKPTFD  0x0001
  71
  72 struct ckpt_siginfo {
  73         int             csi_ckptpisz;
  74         struct sigacts  csi_sigacts;
  75         struct itimerval csi_itimerval;
  76         int             csi_sigparent;
  77         sigset_t        csi_sigmask;
  78         int             csi_reserved[6];
  79 };
  80
  81 /*
  82  * Elf_Phdr is based on the inclusion of elf32 or elf64.  If neither was
  83  * included, we don't know what to do with it.  If the source needs the
  84  * structure, generate a compile-time error.
  85  */
  86 #ifdef __ELF_WORD_SIZE
  87
  88 struct vn_hdr {
  89         fhandle_t       vnh_fh;
  90         Elf_Phdr        vnh_phdr;
  91         int             vnh_reserved[8];
  92 };
  93
  94 #endif
  95
  96 #ifdef _KERNEL
  97 #ifdef DEBUG
  98 #define TRACE_ENTER kprintf("entering %s at %s:%d\n", __func__, __FILE__, __LINE__)
  99 #define TRACE_EXIT kprintf("exiting %s at %s:%d\n", __func__, __FILE__, __LINE__)
 100 #define TRACE_ERR kprintf("failure encountered in %s at %s:%d\n", __func__, __FILE__, __LINE__)
 101 #define PRINTF(args) kprintf args
 102 #else
 103 #define TRACE_ENTER
 104 #define TRACE_EXIT
 105 #define TRACE_ERR
 106 #define PRINTF(args)
 107 #endif  /* DEBUG */
 108 #endif  /* _KERNEL */
 109
 110 #endif  /* _SYS_CKPT_H_ */