The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/sys/ckpt.h

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    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 1.11 2007/06/29 23:39:58 dillon 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_ckflags;
   73         int             cfi_reserved[6];
   74 };
   75 
   76 #define CKFIF_ISCKPTFD  0x0001
   77 
   78 struct ckpt_siginfo {
   79         int             csi_ckptpisz;
   80         struct sigacts  csi_sigacts;
   81         struct itimerval csi_itimerval;
   82         int             csi_sigparent;
   83         sigset_t        csi_sigmask;
   84         int             csi_reserved[6];
   85 };
   86 
   87 /*
   88  * Elf_Phdr is based on the inclusion of elf32 or elf64.  If neither was
   89  * included, we don't know what to do with it.  If the source needs the
   90  * structure, generate a compile-time error.
   91  */
   92 #ifdef __ELF_WORD_SIZE
   93 
   94 struct vn_hdr {
   95         fhandle_t       vnh_fh;
   96         Elf_Phdr        vnh_phdr;
   97         int             vnh_reserved[8];
   98 };
   99 
  100 #endif
  101 
  102 #ifdef _KERNEL
  103 #ifdef DEBUG
  104 #define TRACE_ENTER kprintf("entering %s at %s:%d\n", __func__, __FILE__, __LINE__)
  105 #define TRACE_EXIT kprintf("exiting %s at %s:%d\n", __func__, __FILE__, __LINE__)
  106 #define TRACE_ERR kprintf("failure encountered in %s at %s:%d\n", __func__, __FILE__, __LINE__)
  107 #define PRINTF(args) kprintf args
  108 #else
  109 #define TRACE_ENTER
  110 #define TRACE_EXIT
  111 #define TRACE_ERR
  112 #define PRINTF(args)
  113 #endif  /* DEBUG */
  114 #endif  /* _KERNEL */
  115 
  116 #endif  /* _KERNEL || _KERNEL_STRUCTURES */
  117 #endif  /* _SYS_CKPT_H_ */

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