| | |
| | | |
| | | #include "shm_queue.h" |
| | | #include "bh_util.h" |
| | | #include <boost/uuid/uuid_generators.hpp> |
| | | #include <boost/uuid/uuid_io.hpp> |
| | | |
| | | 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); } |
| | | // MQId EmptyId() { return nil_uuid(); } |
| | | MQId NewId() { return random_generator()(); } |
| | | std::string MsgQIdToName(const ShmMsgQueue::MQId id) |
| | | { |
| | | char buf[40] = "mqOx"; |
| | | int n = sprintf(buf + 4, "%lx", id); |
| | | return std::string(buf, n + 4); |
| | | } |
| | | |
| | | const int AdjustMQLength(const int len) |
| | | { |
| | | const int kMaxLength = 10000; |
| | |
| | | |
| | | } // namespace |
| | | |
| | | ShmMsgQueue::MQId ShmMsgQueue::NewId() |
| | | { |
| | | static auto &id = GetData(); |
| | | return ++id; |
| | | } |
| | | // ShmMsgQueue memory usage: (320 + 16*length) bytes, length >= 2 |
| | | ShmMsgQueue::ShmMsgQueue(const MQId &id, ShmType &segment, const int len) : |
| | | ShmMsgQueue::ShmMsgQueue(const MQId id, ShmType &segment, const int len) : |
| | | Super(segment, MsgQIdToName(id), AdjustMQLength(len), segment.get_segment_manager()), |
| | | id_(id) |
| | | { |
| | |
| | | |
| | | ShmMsgQueue::~ShmMsgQueue() {} |
| | | |
| | | bool ShmMsgQueue::Remove(SharedMemory &shm, const MQId &id) |
| | | bool ShmMsgQueue::Remove(SharedMemory &shm, const MQId id) |
| | | { |
| | | Queue *q = Find(shm, id); |
| | | if (q) { |
| | | MsgI msg; |
| | | while (q->TryRead(msg)) { |
| | | msg.Release(); |
| | | } |
| | | } |
| | | return Super::Remove(shm, MsgQIdToName(id)); |
| | | } |
| | | |
| | | ShmMsgQueue::Queue *ShmMsgQueue::FindRemote(SharedMemory &shm, const MQId &remote_id) |
| | | ShmMsgQueue::Queue *ShmMsgQueue::Find(SharedMemory &shm, const MQId remote_id) |
| | | { |
| | | return Find(shm, MsgQIdToName(remote_id)); |
| | | } |
| | | bool ShmMsgQueue::Send(SharedMemory &shm, const MQId &remote_id, const MsgI &msg, const int timeout_ms, OnSend const &onsend) |
| | | { |
| | | Queue *remote = FindRemote(shm, remote_id); |
| | | if (remote) { |
| | | if (onsend) { |
| | | return remote->Write(msg, timeout_ms, [&onsend](const MsgI &msg) { onsend(); msg.AddRef(); }); |
| | | } else { |
| | | return remote->Write(msg, timeout_ms, [](const MsgI &msg) { msg.AddRef(); }); |
| | | } |
| | | } else { |
| | | // SetLestError(eNotFound); |
| | | return false; |
| | | } |
| | | return Super::Find(shm, MsgQIdToName(remote_id)); |
| | | } |
| | | |
| | | bool ShmMsgQueue::TrySend(SharedMemory &shm, const MQId &remote_id, const MsgI &msg, OnSend const &onsend) |
| | | bool ShmMsgQueue::TrySend(SharedMemory &shm, const MQId remote_id, const MsgI &msg, OnSend const &onsend) |
| | | { |
| | | Queue *remote = FindRemote(shm, remote_id); |
| | | Queue *remote = Find(shm, remote_id); |
| | | if (remote) { |
| | | if (onsend) { |
| | | return remote->TryWrite(msg, [&onsend](const MsgI &msg) { onsend(); msg.AddRef(); }); |