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#include <gran/packet.h>
#include <stdlib.h>
#include <assert.h>
struct packet {
enum packet_state state;
enum packet_type type;
uintptr_t addr;
size_t size;
void *data;
};
struct packet *create_packet(enum packet_type type, uintptr_t addr, size_t size)
{
struct packet *pkt = malloc(sizeof(struct packet) + size);
if (!pkt)
return NULL;
pkt->state = PACKET_INIT;
pkt->type = type;
pkt->addr = addr;
pkt->size = size;
pkt->data = pkt + 1;
return pkt;
}
struct packet *create_packet_with(enum packet_type type, uintptr_t addr,
size_t size, void *data)
{
struct packet *pkt = malloc(sizeof(struct packet));
if (!pkt)
return NULL;
pkt->state = PACKET_INIT;
pkt->type = type;
pkt->addr = addr;
pkt->size = size;
pkt->data = data;
return pkt;
}
struct packet *reuse_packet(struct packet *pkt, enum packet_type type,
uintptr_t addr, size_t size, void *data)
{
assert(pkt->state == PACKET_DONE);
pkt->state = PACKET_INIT;
pkt->type = type;
pkt->addr = addr;
pkt->size = size;
pkt->data = data;
return pkt;
}
enum packet_type packet_type(struct packet *pkt)
{
return pkt->type;
}
enum packet_state packet_state(struct packet *pkt)
{
return pkt->state;
}
void packet_set_state(struct packet *pkt, enum packet_state state)
{
pkt->state = state;
}
size_t packet_size(struct packet *pkt)
{
return pkt->size;
}
uintptr_t packet_addr(struct packet *pkt)
{
return pkt->addr;
}
void *packet_data(struct packet *pkt)
{
return pkt->data;
}
void destroy_packet(struct packet *pkt)
{
free(pkt);
}
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