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/shm_queue.cpp | 85 ------------------------------------------
1 files changed, 0 insertions(+), 85 deletions(-)
diff --git a/src/shm_queue.cpp b/src/shm_queue.cpp
index de38229..86f0d91 100644
--- a/src/shm_queue.cpp
+++ b/src/shm_queue.cpp
@@ -18,92 +18,7 @@
#include "shm_queue.h"
#include "bh_util.h"
-#include <boost/uuid/uuid_generators.hpp>
-#include <boost/uuid/uuid_io.hpp>
-
-// TODO !!! add garbage collection, and handshake with gc-center.
-// smart pointer will NOT work if user crash.
-// problem of process release mq: client query success; server exits; client send.
-// client query success; server exits; client send.
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()(); }
-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(ShmType &segment, const int len) :
- ShmMsgQueue(NewId(), segment, len)
-{
-}
-
-ShmMsgQueue::~ShmMsgQueue()
-{
- // It's not safe to remove, others may still holder pointers and write to it.
- // TODO use smart_ptr or garbage collection.
- //Remove();
-}
-
-bool ShmMsgQueue::Send(SharedMemory &shm, const MQId &remote_id, const MsgI &msg, const int timeout_ms, OnSend const &onsend)
-{
- Queue *remote = Find(shm, MsgQIdToName(remote_id));
- return remote && remote->Write(msg, timeout_ms, [&onsend](const MsgI &msg) { onsend(); msg.AddRef(); });
-}
-
-// Test shows that in the 2 cases:
-// 1) build msg first, then find remote queue;
-// 2) find remote queue first, then build msg;
-// 1 is about 50% faster than 2, maybe cache related.
-
-bool ShmMsgQueue::Send(const MQId &remote_id, const BHMsg &data, const int timeout_ms, const std::function<void()> &onsend)
-{
- MsgI msg;
- if (msg.Make(shm(), data)) {
- if (Send(remote_id, msg, timeout_ms, onsend)) {
- 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;
- }
-}
-
} // namespace bhome_shm
--
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