From 77a6c3512a44dfe6540dde71946e6484fe4f173f Mon Sep 17 00:00:00 2001
From: lichao <lichao@aiotlink.com>
Date: 星期一, 10 五月 2021 16:05:28 +0800
Subject: [PATCH] test lock code.
---
src/socket.h | 101 ++++++++++++++++++++++++++++++++++++--------------
1 files changed, 72 insertions(+), 29 deletions(-)
diff --git a/src/socket.h b/src/socket.h
index 7c4f83f..981677f 100644
--- a/src/socket.h
+++ b/src/socket.h
@@ -19,8 +19,10 @@
#ifndef SOCKET_GWTJHBPO
#define SOCKET_GWTJHBPO
+#include "bh_util.h"
#include "defs.h"
-#include "shm_queue.h"
+#include "sendq.h"
+#include "shm_msg_queue.h"
#include <atomic>
#include <boost/noncopyable.hpp>
#include <condition_variable>
@@ -31,58 +33,64 @@
#include <vector>
using namespace bhome_msg;
-
class ShmSocket : private boost::noncopyable
{
+
protected:
- typedef bhome_shm::ShmMsgQueue Queue;
+ typedef ShmMsgQueue Queue;
public:
+ typedef ShmMsgQueue::MQId MQId;
typedef bhome_shm::SharedMemory Shm;
+ typedef std::function<void(ShmSocket &sock, MsgI &imsg)> RawRecvCB;
typedef std::function<void(ShmSocket &sock, MsgI &imsg, BHMsgHead &head)> RecvCB;
typedef std::function<bool(ShmSocket &sock, MsgI &imsg, BHMsgHead &head)> PartialRecvCB;
typedef std::function<void(ShmSocket &sock)> IdleCB;
- ShmSocket(Shm &shm, const MQId &id, const int len);
+ ShmSocket(Shm &shm, const MQId id, const int len);
+ ShmSocket(Shm &shm, const bool create_or_else_find, const MQId id, const int len);
ShmSocket(Shm &shm, const int len = 12);
~ShmSocket();
- const MQId &id() const { return mq().Id(); }
- Shm &shm() { return shm_; }
+ static bool Remove(SharedMemory &shm, const MQId id) { return Queue::Remove(shm, id); }
+ bool Remove() { return Remove(shm(), id()); }
+ MQId id() const { return mq().Id(); }
// start recv.
+ bool Start(const RawRecvCB &onData, const IdleCB &onIdle, int nworker = 1);
bool Start(int nworker = 1, const RecvCB &onData = RecvCB(), const IdleCB &onIdle = IdleCB());
bool Start(const RecvCB &onData, const IdleCB &onIdle, int nworker = 1) { return Start(nworker, onData, onIdle); }
bool Start(const RecvCB &onData, int nworker = 1) { return Start(nworker, onData); }
bool Stop();
- size_t Pending() const { return mq().Pending(); }
-
- bool Send(const void *id, const MsgI &imsg, const int timeout_ms)
- {
- return mq().Send(*static_cast<const MQId *>(id), imsg, timeout_ms);
- }
- //TODO reimplment, using async.
- bool SyncRecv(MsgI &msg, bhome::msg::BHMsgHead &head, const int timeout_ms);
template <class Body>
- bool Send(const void *valid_remote, const BHMsgHead &head, const Body &body, const int timeout_ms, const RecvCB &cb = RecvCB())
+ bool Send(const MQId remote, BHMsgHead &head, Body &body, RecvCB &&cb = RecvCB())
{
- assert(valid_remote);
try {
- if (cb) {
- auto RegisterCB = [&]() {
- std::lock_guard<std::mutex> lock(mutex());
- async_cbs_.emplace(head.msg_id(), cb);
- };
- return mq().Send(*static_cast<const MQId *>(valid_remote), head, body, timeout_ms, RegisterCB);
+ if (!cb) {
+ return SendImpl(remote, MsgI::Serialize(head, body));
} else {
- return mq().Send(*static_cast<const MQId *>(valid_remote), head, body, timeout_ms);
+ std::string msg_id(head.msg_id());
+ per_msg_cbs_->Store(msg_id, std::move(cb));
+ auto onExpireRemoveCB = [this, msg_id](SendQ::Data const &msg) {
+ RecvCB cb_no_use;
+ per_msg_cbs_->Pick(msg_id, cb_no_use);
+ };
+ return SendImpl(remote, MsgI::Serialize(head, body), onExpireRemoveCB);
}
} catch (...) {
+ SetLastError(eError, "Send internal error.");
return false;
}
}
+ bool Send(const MQId remote, const MsgI &imsg)
+ {
+ return SendImpl(remote, imsg);
+ }
+
+ bool SyncRecv(MsgI &msg, bhome_msg::BHMsgHead &head, const int timeout_ms);
+
template <class Body>
- bool SendAndRecv(const void *remote, const BHMsgHead &head, const Body &body, MsgI &reply, BHMsgHead &reply_head, const int timeout_ms)
+ bool SendAndRecv(const MQId remote, BHMsgHead &head, Body &body, MsgI &reply, BHMsgHead &reply_head, const int timeout_ms)
{
struct State {
std::mutex mutex;
@@ -100,16 +108,20 @@
reply.swap(msg);
reply_head.Swap(&head);
st->cv.notify_one();
- } else {
+ } else { // ignore
}
};
std::unique_lock<std::mutex> lk(st->mutex);
- bool sendok = Send(remote, head, body, timeout_ms, OnRecv);
+ bool sendok = Send(remote, head, body, std::move(OnRecv));
+ if (!sendok) {
+ LOG_DEBUG() << "send timeout";
+ }
if (sendok && st->cv.wait_until(lk, endtime) == std::cv_status::no_timeout) {
return true;
} else {
st->canceled = true;
+ SetLastError(ETIMEDOUT, "timeout");
return false;
}
} catch (...) {
@@ -117,8 +129,9 @@
}
}
+ Shm &shm() const { return mq().shm(); }
+
protected:
- const Shm &shm() const { return shm_; }
Queue &mq() { return mq_; } // programmer should make sure that mq_ is valid.
const Queue &mq() const { return mq_; }
std::mutex &mutex() { return mutex_; }
@@ -127,13 +140,43 @@
bool StopNoLock();
bool RunningNoLock() { return !workers_.empty(); }
- Shm &shm_;
+ template <class... Rest>
+ bool SendImpl(const MQId remote, Rest &&...rest)
+ {
+ // TODO send alloc request, and pack later, higher bit means alloc?
+ send_buffer_.Append(remote, std::forward<decltype(rest)>(rest)...);
+ return true;
+ }
+
std::vector<std::thread> workers_;
std::mutex mutex_;
std::atomic<bool> run_;
Queue mq_;
- std::unordered_map<std::string, RecvCB> async_cbs_;
+ template <class Key>
+ class CallbackRecords
+ {
+ std::unordered_map<Key, RecvCB> store_;
+
+ public:
+ bool empty() const { return store_.empty(); }
+ bool Store(const Key &id, RecvCB &&cb) { return store_.emplace(id, std::move(cb)).second; }
+ bool Pick(const Key &id, RecvCB &cb)
+ {
+ auto pos = store_.find(id);
+ if (pos != store_.end()) {
+ cb.swap(pos->second);
+ store_.erase(pos);
+ return true;
+ } else {
+ return false;
+ }
+ }
+ };
+
+ Synced<CallbackRecords<std::string>> per_msg_cbs_;
+
+ SendQ send_buffer_;
};
#endif // end of include guard: SOCKET_GWTJHBPO
--
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