4
#include "migration/vmstate.h"
7
/* All fields are private */
16
* @fifo: struct Fifo8 to initialise with new FIFO
17
* @capacity: capacity of the newly created FIFO
19
* Create a FIFO of the specified size. Clients should call fifo8_destroy()
20
* when finished using the fifo. The FIFO is initially empty.
23
void fifo8_create(Fifo8 *fifo, uint32_t capacity);
27
* @fifo: FIFO to cleanup
29
* Cleanup a FIFO created with fifo8_create(). Frees memory created for FIFO
30
*storage. The FIFO is no longer usable after this has been called.
33
void fifo8_destroy(Fifo8 *fifo);
37
* @fifo: FIFO to push to
38
* @data: data byte to push
40
* Push a data byte to the FIFO. Behaviour is undefined if the FIFO is full.
41
* Clients are responsible for checking for fullness using fifo8_is_full().
44
void fifo8_push(Fifo8 *fifo, uint8_t data);
48
* @fifo: fifo to pop from
50
* Pop a data byte from the FIFO. Behaviour is undefined if the FIFO is empty.
51
* Clients are responsible for checking for emptyness using fifo8_is_empty().
53
* Returns: The popped data byte.
56
uint8_t fifo8_pop(Fifo8 *fifo);
60
* @fifo: FIFO to reset
62
* Reset a FIFO. All data is discarded and the FIFO is emptied.
65
void fifo8_reset(Fifo8 *fifo);
69
* @fifo: FIFO to check
71
* Check if a FIFO is empty.
73
* Returns: True if the fifo is empty, false otherwise.
76
bool fifo8_is_empty(Fifo8 *fifo);
80
* @fifo: FIFO to check
82
* Check if a FIFO is full.
84
* Returns: True if the fifo is full, false otherwise.
87
bool fifo8_is_full(Fifo8 *fifo);
89
extern const VMStateDescription vmstate_fifo8;
91
#define VMSTATE_FIFO8(_field, _state) { \
92
.name = (stringify(_field)), \
93
.size = sizeof(Fifo8), \
94
.vmsd = &vmstate_fifo8, \
95
.flags = VMS_STRUCT, \
96
.offset = vmstate_offset_value(_state, _field, Fifo8), \