code/fe310/eos/cell.c


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44

#include <stdlib.h>
#include <stdint.h>
#include <string.h>

#include "eos.h"
#include "event.h"
#include "net.h"

#include "cell.h"

static eos_evt_handler_t evt_handler[EOS_CELL_MAX_MTYPE];
static uint16_t evt_handler_flags_buf_free = 0;
static uint16_t evt_handler_flags_buf_acq = 0;

static void cell_handle_evt(unsigned char type, unsigned char *buffer, uint16_t len) {
    if ((buffer == NULL) || (len < 1)) {
        eos_evtq_bad_handler(type, buffer, len);
        eos_net_free(buffer, 0);
        return;
    }

    unsigned char mtype = buffer[0];
    if (mtype < EOS_CELL_MAX_MTYPE) {
        evt_handler[mtype](type, buffer, len);
    } else {
        eos_evtq_bad_handler(type, buffer, len);
        eos_net_free(buffer, 0);
        return;
    }
}

void eos_cell_init(void) {
    int i;

    for (i=0; i<EOS_CELL_MAX_MTYPE; i++) {
        evt_handler[i] = eos_evtq_bad_handler;
    }
    eos_net_set_handler(EOS_NET_MTYPE_CELL, cell_handle_evt);
}

void eos_cell_set_handler(unsigned char mtype, eos_evt_handler_t handler) {
    if (handler == NULL) handler = eos_evtq_bad_handler;
    if (mtype < EOS_CELL_MAX_MTYPE) evt_handler[mtype] = handler;
}