1#ifndef _QEMU_FILE_H
2#define _QEMU_FILE_H
3
4#include "hw/hw.h"
5
6typedef enum {
7    Q_FIELD_END,          /* mark end of field list */
8    Q_FIELD_BYTE,         /* for 1-byte fields */
9    Q_FIELD_INT16,        /* for 2-byte fields */
10    Q_FIELD_INT32,        /* for 4-byte fields */
11    Q_FIELD_INT64,        /* for 8-byte fields */
12    Q_FIELD_BUFFER,       /* for buffer fields */
13    Q_FIELD_BUFFER_SIZE,  /* to specify the size of buffers */
14
15#if TARGET_LONG_BITS == 64
16    Q_FIELD_TL = Q_FIELD_INT64,           /* target long, either 4 or 8 bytes */
17#else
18    Q_FIELD_TL = Q_FIELD_INT32
19#endif
20
21} QFieldType;
22
23typedef struct {
24    QFieldType  type : 16; /* field type */
25    uint16_t    offset;    /* offset of field in structure */
26} QField;
27
28#define  QFIELD_BEGIN(name)  \
29    static const QField    name[] = {
30
31#define  _QFIELD_(t, f)    { t, offsetof(QFIELD_STRUCT,f) }
32#define  QFIELD_BYTE(f)   _QFIELD_(Q_FIELD_BYTE, f)
33#define  QFIELD_INT16(f)  _QFIELD_(Q_FIELD_INT16, f)
34#define  QFIELD_INT32(f)  _QFIELD_(Q_FIELD_INT32, f)
35#define  QFIELD_INT64(f)  _QFIELD_(Q_FIELD_INT64, f)
36#define  QFIELD_TL(f)     _QFIELD_(Q_FIELD_TL, f)
37
38#define  _QFIELD_SIZEOF(f)   sizeof(((QFIELD_STRUCT*)0)->f)
39
40#define  QFIELD_BUFFER(f)  \
41    _QFIELD_(Q_FIELD_BUFFER, f), \
42    { Q_FIELD_BUFFER_SIZE, (uint16_t)(_QFIELD_SIZEOF(f) >> 16) }, \
43    { Q_FIELD_BUFFER_SIZE, (uint16_t) _QFIELD_SIZEOF(f) }
44
45#define  QFIELD_END           \
46        { Q_FIELD_END, 0 },   \
47    };
48
49extern void  qemu_put_struct(QEMUFile*  f, const QField*  fields, const void*  s);
50extern int   qemu_get_struct(QEMUFile*  f, const QField*  fields, void*  s);
51
52#endif /* _QEMU_FILE_H */
53