openpilot is an open source driver assistance system. openpilot performs the functions of Automated Lane Centering and Adaptive Cruise Control for over 200 supported car makes and models.
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

102 lines
3.3 KiB

#pragma once
#include <cstddef>
#include <map>
#include <string>
#include <vector>
#include <utility>
#include <capnp/serialize.h>
#include "cereal/gen/cpp/log.capnp.h"
#include "common/timing.h"
#include "msgq/ipc.h"
class SubMaster {
public:
SubMaster(const std::vector<const char *> &service_list, const std::vector<const char *> &poll = {},
const char *address = nullptr, const std::vector<const char *> &ignore_alive = {});
void update(int timeout = 1000);
void update_msgs(uint64_t current_time, const std::vector<std::pair<std::string, cereal::Event::Reader>> &messages);
inline bool allAlive(const std::vector<const char *> &service_list = {}) { return all_(service_list, false, true); }
inline bool allValid(const std::vector<const char *> &service_list = {}) { return all_(service_list, true, false); }
inline bool allAliveAndValid(const std::vector<const char *> &service_list = {}) { return all_(service_list, true, true); }
void drain();
~SubMaster();
uint64_t frame = 0;
bool updated(const char *name) const;
bool alive(const char *name) const;
bool valid(const char *name) const;
uint64_t rcv_frame(const char *name) const;
uint64_t rcv_time(const char *name) const;
cereal::Event::Reader &operator[](const char *name) const;
private:
bool all_(const std::vector<const char *> &service_list, bool valid, bool alive);
Poller *poller_ = nullptr;
struct SubMessage;
std::map<SubSocket *, SubMessage *> messages_;
std::map<std::string, SubMessage *> services_;
};
class MessageBuilder : public capnp::MallocMessageBuilder {
public:
MessageBuilder() = default;
cereal::Event::Builder initEvent(bool valid = true) {
cereal::Event::Builder event = initRoot<cereal::Event>();
event.setLogMonoTime(nanos_since_boot());
event.setValid(valid);
return event;
}
kj::ArrayPtr<capnp::byte> toBytes() {
heapArray_ = capnp::messageToFlatArray(*this);
return heapArray_.asBytes();
}
size_t getSerializedSize() {
return capnp::computeSerializedSizeInWords(*this) * sizeof(capnp::word);
}
int serializeToBuffer(unsigned char *buffer, size_t buffer_size) {
size_t serialized_size = getSerializedSize();
if (serialized_size > buffer_size) { return -1; }
kj::ArrayOutputStream out(kj::ArrayPtr<capnp::byte>(buffer, buffer_size));
capnp::writeMessage(out, *this);
return serialized_size;
}
private:
kj::Array<capnp::word> heapArray_;
};
class PubMaster {
public:
PubMaster(const std::vector<const char *> &service_list);
inline int send(const char *name, capnp::byte *data, size_t size) { return sockets_.at(name)->send((char *)data, size); }
int send(const char *name, MessageBuilder &msg);
~PubMaster();
private:
std::map<std::string, PubSocket *> sockets_;
};
class AlignedBuffer {
public:
kj::ArrayPtr<const capnp::word> align(const char *data, const size_t size) {
words_size = size / sizeof(capnp::word) + 1;
if (aligned_buf.size() < words_size) {
aligned_buf = kj::heapArray<capnp::word>(words_size < 512 ? 512 : words_size);
}
memcpy(aligned_buf.begin(), data, size);
return aligned_buf.slice(0, words_size);
}
inline kj::ArrayPtr<const capnp::word> align(Message *m) {
return align(m->getData(), m->getSize());
}
private:
kj::Array<capnp::word> aligned_buf;
size_t words_size;
};