diff options
| author | Gerd Hoffmann <kraxel@redhat.com> | 2009-08-03 17:35:17 +0200 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2009-08-10 13:05:48 -0500 |
| commit | cf12b95bf5a2f30b37c4b91011fb6a9ab70c920d (patch) | |
| tree | ce27df4da953e74884a6d87becd3ba38a9d0aecd /hw/qdev.h | |
| parent | 93c8cfd9e67a62711b86f4c93747566885eb7928 (diff) | |
qdev/prop: macros for creating typechecked properties.
There are DEFINE_PROP_$TYPE("name", struct, field, default) macros for
each property type. These macros link the qdev_prop_$name struct to the
type used by that property. typeof(struct->field) is verifyed to be the
correct one for the given property.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Message-Id:
Diffstat (limited to 'hw/qdev.h')
| -rw-r--r-- | hw/qdev.h | 38 |
1 files changed, 38 insertions, 0 deletions
@@ -160,6 +160,44 @@ extern PropertyInfo qdev_prop_macaddr; extern PropertyInfo qdev_prop_drive; extern PropertyInfo qdev_prop_pci_devfn; +#define typeof_field(type, field) typeof(((type *)0)->field) +#define type_check(t1,t2) ((t1*)0 - (t2*)0) + +#define DEFINE_PROP(_name, _state, _field, _prop, _type) { \ + .name = (_name), \ + .info = &(_prop), \ + .offset = offsetof(_state, _field) \ + + type_check(_type,typeof_field(_state, _field)), \ + } +#define DEFINE_PROP_DEFAULT(_name, _state, _field, _defval, _prop, _type) { \ + .name = (_name), \ + .info = &(_prop), \ + .offset = offsetof(_state, _field) \ + + type_check(_type,typeof_field(_state, _field)), \ + .defval = (_type[]) { _defval }, \ + } + +#define DEFINE_PROP_UINT16(_n, _s, _f, _d) \ + DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_uint16, uint16_t) +#define DEFINE_PROP_UINT32(_n, _s, _f, _d) \ + DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_uint32, uint32_t) +#define DEFINE_PROP_UINT64(_n, _s, _f, _d) \ + DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_uint64, uint64_t) +#define DEFINE_PROP_HEX32(_n, _s, _f, _d) \ + DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_hex32, uint32_t) +#define DEFINE_PROP_HEX64(_n, _s, _f, _d) \ + DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_hex64, uint64_t) +#define DEFINE_PROP_PCI_DEVFN(_n, _s, _f, _d) \ + DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_pci_devfn, uint32_t) + +#define DEFINE_PROP_PTR(_n, _s, _f) \ + DEFINE_PROP(_n, _s, _f, qdev_prop_ptr, void*) +#define DEFINE_PROP_MACADDR(_n, _s, _f) \ + DEFINE_PROP(_n, _s, _f, qdev_prop_macaddr, uint8_t[6]) + +#define DEFINE_PROP_END_OF_LIST() \ + {} + /* Set properties between creation and init. */ void *qdev_get_prop_ptr(DeviceState *dev, Property *prop); int qdev_prop_parse(DeviceState *dev, const char *name, const char *value); |