| | |
| | | */ |
| | | |
| | | #include "shm_queue.h" |
| | | #include <boost/uuid/uuid_io.hpp> |
| | | #include <boost/uuid/uuid_generators.hpp> |
| | | #include "bh_util.h" |
| | | #include <boost/uuid/uuid_generators.hpp> |
| | | #include <boost/uuid/uuid_io.hpp> |
| | | |
| | | namespace bhome_shm { |
| | | using namespace bhome_msg; |
| | | namespace bhome_shm |
| | | { |
| | | using namespace bhome_msg; |
| | | using namespace boost::interprocess; |
| | | using namespace boost::uuids; |
| | | |
| | | namespace { |
| | | std::string MsgQIdToName(const MQId& id) { return "shmq" + to_string(id); } |
| | | namespace |
| | | { |
| | | std::string MsgQIdToName(const MQId &id) { return "shmq" + to_string(id); } |
| | | // MQId EmptyId() { return nil_uuid(); } |
| | | MQId NewId() { return random_generator()(); } |
| | | const int AdjustMQLength(const int len) { |
| | | const int kMaxLength = 10000; |
| | | const int kDefaultLen = 12; |
| | | if (len <= 0) { |
| | | return kDefaultLen; |
| | | } else if (len < kMaxLength) { |
| | | return len; |
| | | } else { |
| | | return kMaxLength; |
| | | } |
| | | const int AdjustMQLength(const int len) |
| | | { |
| | | const int kMaxLength = 10000; |
| | | const int kDefaultLen = 12; |
| | | if (len <= 0) { |
| | | return kDefaultLen; |
| | | } else if (len < kMaxLength) { |
| | | return len; |
| | | } else { |
| | | return kMaxLength; |
| | | } |
| | | } |
| | | |
| | | } |
| | | } // namespace |
| | | |
| | | // ShmMsgQueue memory usage: (320 + 16*length) bytes, length >= 2 |
| | | ShmMsgQueue::ShmMsgQueue(const MQId &id, ShmType &segment, const int len): |
| | | Super(segment, MsgQIdToName(id), AdjustMQLength(len), segment.get_segment_manager()), |
| | | id_(id) |
| | | {} |
| | | ShmMsgQueue::ShmMsgQueue(const MQId &id, ShmType &segment, const int len) : |
| | | Super(segment, MsgQIdToName(id), AdjustMQLength(len), segment.get_segment_manager()), |
| | | id_(id) |
| | | { |
| | | } |
| | | |
| | | ShmMsgQueue::ShmMsgQueue(ShmType &segment, const int len): |
| | | ShmMsgQueue(NewId(), segment, len) |
| | | {} |
| | | ShmMsgQueue::ShmMsgQueue(ShmType &segment, const int len) : |
| | | ShmMsgQueue(NewId(), segment, len) |
| | | { |
| | | } |
| | | |
| | | ShmMsgQueue::~ShmMsgQueue() |
| | | { |
| | | Remove(); |
| | | Remove(); |
| | | } |
| | | |
| | | bool ShmMsgQueue::Send(SharedMemory &shm, const MQId &remote_id, const MsgI &msg, const int timeout_ms) |
| | | { |
| | | Queue *remote = Find(shm, MsgQIdToName(remote_id)); |
| | | return remote && remote->Write(msg, timeout_ms, [](const MsgI&msg){msg.AddRef();}); |
| | | Queue *remote = Find(shm, MsgQIdToName(remote_id)); |
| | | return remote && remote->Write(msg, timeout_ms, [](const MsgI &msg) { msg.AddRef(); }); |
| | | } |
| | | |
| | | // bool ShmMsgQueue::Send(const MQId &remote_id, const MsgI &msg, const int timeout_ms) |
| | |
| | | |
| | | bool ShmMsgQueue::Send(const MQId &remote_id, const BHMsg &data, const int timeout_ms) |
| | | { |
| | | MsgI msg; |
| | | if(msg.Make(shm(), data)) { |
| | | if(Send(remote_id, msg, timeout_ms)) { |
| | | return true; |
| | | } else { |
| | | msg.Release(shm()); |
| | | } |
| | | } |
| | | return false; |
| | | MsgI msg; |
| | | if (msg.Make(shm(), data)) { |
| | | if (Send(remote_id, msg, timeout_ms)) { |
| | | return true; |
| | | } else { |
| | | msg.Release(shm()); |
| | | } |
| | | } |
| | | return false; |
| | | } |
| | | |
| | | /* |
| | |
| | | //*/ |
| | | bool ShmMsgQueue::Recv(BHMsg &msg, const int timeout_ms) |
| | | { |
| | | MsgI imsg; |
| | | if (Read(imsg, timeout_ms)) { |
| | | DEFER1(imsg.Release(shm());); |
| | | return imsg.Unpack(msg); |
| | | } else { |
| | | return false; |
| | | } |
| | | MsgI imsg; |
| | | if (Read(imsg, timeout_ms)) { |
| | | DEFER1(imsg.Release(shm());); |
| | | return imsg.Unpack(msg); |
| | | } else { |
| | | return false; |
| | | } |
| | | } |
| | | |
| | | } // namespace bhome_shm |