Ejemplos de tbus_read_begin en C++ (Cpp)

Ejemplo n.º 1

Archivo: tbusapi.c Proyecto: TracyHu/TSF4G

tlibc_error_code_t tbusapi_process(tbusapi_t *self)
{
	tlibc_error_code_t ret = E_TLIBC_NOERROR;
	size_t iov_num = self->iov_num; 
	tbus_atomic_size_t tbus_head = tbus_read_begin(self->itb, self->iov, &iov_num);
	if(iov_num == 0)
	{
		if(tbus_head != self->itb->head_offset)
		{
			goto read_end;
		}
		else
		{
			ret = E_TLIBC_WOULD_BLOCK;
			goto done;
		}
	}

	if(self->on_recviov)
	{
		uint16_t pos = self->on_recviov(self, self->iov, (uint16_t)iov_num);
		if(pos < iov_num)
		{
			tbus_head = tbus_packet2offset(self->itb, self->iov[pos].iov_base);
		}
		if(pos == 0)
		{
			ret = E_TLIBC_WOULD_BLOCK;
		}
	}

read_end:
	tbus_read_end(self->itb, tbus_head);	
done:
	return ret;
}

Ejemplo n.º 2

Archivo: tconnd_tbus.c Proyecto: CuriousBoy0822/TSF4G

tlibc_error_code_t process_input_tbus()
{
	tlibc_error_code_t ret = E_TLIBC_NOERROR;

    struct iovec iov[TCONND_IOV_NUM];
    size_t iov_num;    

    tlibc_list_head_t writable_list;
    tlibc_list_head_t *iter;

    tbus_atomic_size_t tbus_head;
    size_t iov_index;
    
    tlibc_list_init(&writable_list);


    iov_num = TCONND_IOV_NUM;
    tbus_head = tbus_read_begin(g_input_tbus, iov, &iov_num);
    if(iov_num == 0)
    {
        if(tbus_head == g_input_tbus->head_offset)
        {
            ret = E_TLIBC_WOULD_BLOCK;
        }
        goto read_end;
    }


    for(iov_index = 0; iov_index < iov_num; ++iov_index)
    {
        uint32_t i;
        const sip_rsp_t *head = NULL;
        size_t head_size = 0;
        char* body_addr = NULL;
        size_t body_size = 0;


        head = (const sip_rsp_t*)iov[iov_index].iov_base;
        head_size = SIZEOF_SIP_RSP_T(head);
        if(iov[iov_index].iov_len < head_size)
        {
            ERROR_LOG("can not decode sip_rst_t.");
            goto flush_socket;
        }
        
        if(head->cmd == e_sip_rsp_cmd_send)
        {
            body_size = head->size;
            body_addr = (char*)iov[iov_index].iov_base + head_size;
            if(head_size + body_size > iov[iov_index].iov_len)
            {
                ERROR_LOG("sip_rst_t.size out of range.");
                goto flush_socket;
            }
        }
        else
        {
            body_addr = NULL;
            body_size = 0;
        }        
        for(i = 0; i < head->cid_list_num; ++i)
        {
            tconnd_socket_t *socket = NULL;
            if(i >= SIP_BROADCAST_NUM)
            {
                ERROR_LOG("cid [%u] >= SIP_BROADCAST_NUM [%u]", head->cid_list_num, SIP_BROADCAST_NUM);
                break;
            }
            
            if(!tlibc_mempool_id_test(&g_socket_pool, head->cid_list[i].id))
            {
                DEBUG_LOG("head->cmd = %d [%u, %"PRIu64"] , head->cid_list[i].id[%u] > g_socket_pool->unit_num[%zu]."
                   , head->cmd, head->cid_list[i].id, head->cid_list[i].sn, head->cid_list[i].id, g_socket_pool.unit_num);
                continue;
            }
            socket = (tconnd_socket_t*)tlibc_mempool_id2ptr(&g_socket_pool, head->cid_list[i].id);
            if(!tlibc_mempool_ptr_test(socket, mempool_entry, head->cid_list[i].sn))
            {
                DEBUG_LOG("socket [%u, %"PRIu64"] head->cmd = %d [%u, %"PRIu64"] mismatch."
                    , head->cid_list[i].id, socket->mempool_entry.sn, head->cmd, head->cid_list[i].id, head->cid_list[i].sn);
                continue;
            }
            
            if(tconnd_socket_push_pkg(socket, head, body_addr, body_size) == E_TLIBC_CLOSE)
            {
                if(socket->writable)
                {
                    socket->writable = false;                
                    tlibc_list_del(&socket->writable_list);
                }
                tconnd_socket_delete(socket);
            }
            else
            {
                if(!socket->writable)
                {
                    socket->writable = true;
                    tlibc_list_add_tail(&socket->writable_list, &writable_list);
                }
            }
        }
    }
    
flush_socket:
    for(iter = writable_list.next; iter != &writable_list; iter = iter->next)
    {
        tconnd_socket_t *socket = TLIBC_CONTAINER_OF(iter, tconnd_socket_t, writable_list);
        tlibc_error_code_t r = tconnd_socket_flush(socket);        
        socket->writable = false;
        
        if(r == E_TLIBC_CLOSE)
        {
            tconnd_socket_delete(socket);
        }        
    }
    
read_end:
    tbus_read_end(g_input_tbus, tbus_head);
    return ret;
}