meshtastic-firmware/src/mesh/MeshTypes.h

48 wiersze
1.5 KiB
C

#pragma once
// low level types
#include "MemoryPool.h"
#include "mesh/mesh-pb-constants.h"
#include <Arduino.h>
typedef uint32_t NodeNum;
typedef uint32_t PacketId; // A packet sequence number
#define NODENUM_BROADCAST UINT32_MAX
#define ERRNO_OK 0
#define ERRNO_NO_INTERFACES 33
#define ERRNO_UNKNOWN 32 // pick something that doesn't conflict with RH_ROUTER_ERROR_UNABLE_TO_DELIVER
#define ERRNO_DISABLED 34 // the itnerface is disabled
/*
* Source of a received message
*/
enum RxSource {
RX_SRC_LOCAL, // message was generated locally
RX_SRC_RADIO, // message was received from radio mesh
RX_SRC_USER // message was received from end-user device
};
/**
* the max number of hops a message can pass through, used as the default max for hop_limit in MeshPacket.
*
* We reserve 3 bits in the header so this could be up to 7, but given the high range of lora and typical usecases, keeping
* maxhops to 3 should be fine for a while. This also serves to prevent routing/flooding attempts to be attempted for
* too long.
**/
#define HOP_MAX 7
/// We normally just use max 3 hops for sending reliable messages
#define HOP_RELIABLE 3
typedef int ErrorCode;
/// Alloc and free packets to our global, ISR safe pool
extern Allocator<MeshPacket> &packetPool;
/**
* Most (but not always) of the time we want to treat packets 'from' the local phone (where from == 0), as if they originated on
* the local node. If from is zero this function returns our node number instead
*/
NodeNum getFrom(const MeshPacket *p);