qemu/hw/9pfs/virtio-9p-synth.h

   1 /*
   2  * Virtio 9p
   3  *
   4  * Copyright IBM, Corp. 2011
   5  *
   6  * Authors:
   7  *  Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
   8  *
   9  * This work is licensed under the terms of the GNU GPL, version 2.  See
  10  * the COPYING file in the top-level directory.
  11  *
  12  */
  13 #ifndef HW_9PFS_VIRTIO9P_SYNTH_H
  14 #define HW_9PFS_VIRTIO9P_SYNTH_H 1
  15
  16 #include <unistd.h>
  17 #include <sys/types.h>
  18 #include <limits.h>
  19
  20 typedef struct V9fsSynthNode V9fsSynthNode;
  21 typedef ssize_t (*v9fs_synth_read)(void *buf, int len, off_t offset,
  22                                    void *arg);
  23 typedef ssize_t (*v9fs_synth_write)(void *buf, int len, off_t offset,
  24                                     void *arg);
  25 typedef struct V9fsSynthNodeAttr {
  26     int mode;
  27     int inode;
  28     int nlink;
  29     v9fs_synth_read read;
  30     v9fs_synth_write write;
  31 } V9fsSynthNodeAttr;
  32
  33 struct V9fsSynthNode {
  34     QLIST_HEAD(, V9fsSynthNode) child;
  35     QLIST_ENTRY(V9fsSynthNode) sibling;
  36     char name[NAME_MAX];
  37     V9fsSynthNodeAttr *attr;
  38     V9fsSynthNodeAttr actual_attr;
  39     void *private;
  40     int open_count;
  41 };
  42
  43 typedef struct V9fsSynthOpenState {
  44     off_t offset;
  45     V9fsSynthNode *node;
  46 } V9fsSynthOpenState;
  47
  48 extern int qemu_v9fs_synth_mkdir(V9fsSynthNode *parent, int mode,
  49                                  const char *name, V9fsSynthNode **result);
  50 extern int qemu_v9fs_synth_add_file(V9fsSynthNode *parent, int mode,
  51                                     const char *name, v9fs_synth_read read,
  52                                     v9fs_synth_write write, void *arg);
  53
  54 #endif