diff options
Diffstat (limited to 'qemu_file.h')
| -rw-r--r-- | qemu_file.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/qemu_file.h b/qemu_file.h new file mode 100644 index 0000000..682e092 --- /dev/null +++ b/qemu_file.h @@ -0,0 +1,52 @@ +#ifndef _QEMU_FILE_H +#define _QEMU_FILE_H + +#include "hw/hw.h" + +typedef enum { + Q_FIELD_END, /* mark end of field list */ + Q_FIELD_BYTE, /* for 1-byte fields */ + Q_FIELD_INT16, /* for 2-byte fields */ + Q_FIELD_INT32, /* for 4-byte fields */ + Q_FIELD_INT64, /* for 8-byte fields */ + Q_FIELD_BUFFER, /* for buffer fields */ + Q_FIELD_BUFFER_SIZE, /* to specify the size of buffers */ + +#if TARGET_LONG_BITS == 64 + Q_FIELD_TL = Q_FIELD_INT64, /* target long, either 4 or 8 bytes */ +#else + Q_FIELD_TL = Q_FIELD_INT32 +#endif + +} QFieldType; + +typedef struct { + QFieldType type : 16; /* field type */ + uint16_t offset; /* offset of field in structure */ +} QField; + +#define QFIELD_BEGIN(name) \ + static const QField name[] = { + +#define _QFIELD_(t, f) { t, offsetof(QFIELD_STRUCT,f) } +#define QFIELD_BYTE(f) _QFIELD_(Q_FIELD_BYTE, f) +#define QFIELD_INT16(f) _QFIELD_(Q_FIELD_INT16, f) +#define QFIELD_INT32(f) _QFIELD_(Q_FIELD_INT32, f) +#define QFIELD_INT64(f) _QFIELD_(Q_FIELD_INT64, f) +#define QFIELD_TL(f) _QFIELD_(Q_FIELD_TL, f) + +#define _QFIELD_SIZEOF(f) sizeof(((QFIELD_STRUCT*)0)->f) + +#define QFIELD_BUFFER(f) \ + _QFIELD_(Q_FIELD_BUFFER, f), \ + { Q_FIELD_BUFFER_SIZE, (uint16_t)(_QFIELD_SIZEOF(f) >> 16) }, \ + { Q_FIELD_BUFFER_SIZE, (uint16_t) _QFIELD_SIZEOF(f) } + +#define QFIELD_END \ + { Q_FIELD_END, 0 }, \ + }; + +extern void qemu_put_struct(QEMUFile* f, const QField* fields, const void* s); +extern int qemu_get_struct(QEMUFile* f, const QField* fields, void* s); + +#endif /* _QEMU_FILE_H */ |