From af86015d724e5edf001aa024fe7d8581c45cffd9 Mon Sep 17 00:00:00 2001
From: lichao <lichao@aiotlink.com>
Date: 星期四, 15 四月 2021 10:44:12 +0800
Subject: [PATCH] fix sendq lock, use different mutexes for in,out.
---
src/shm_queue.cpp | 54 ++++++++++++++++++++++++++++++++----------------------
1 files changed, 32 insertions(+), 22 deletions(-)
diff --git a/src/shm_queue.cpp b/src/shm_queue.cpp
index dcb5a9e..78fdaec 100644
--- a/src/shm_queue.cpp
+++ b/src/shm_queue.cpp
@@ -60,42 +60,52 @@
}
ShmMsgQueue::ShmMsgQueue(ShmType &segment, const int len) :
- ShmMsgQueue(NewId(), segment, len)
+ ShmMsgQueue(NewId(), segment, len) {}
+
+ShmMsgQueue::~ShmMsgQueue() {}
+
+bool ShmMsgQueue::Remove(SharedMemory &shm, const MQId &id)
{
+ return Super::Remove(shm, MsgQIdToName(id));
}
-ShmMsgQueue::~ShmMsgQueue()
+ShmMsgQueue::Queue *ShmMsgQueue::FindRemote(SharedMemory &shm, const MQId &remote_id)
{
- // It's not safe to remove, others may still holder pointers and write to it.
- // TODO use smart_ptr or garbage collection.
- //Remove();
+ 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 = Find(shm, MsgQIdToName(remote_id));
- return remote && remote->Write(msg, timeout_ms, [&onsend](const MsgI &msg) { onsend(); msg.AddRef(); });
+ 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;
+ }
}
-bool ShmMsgQueue::Send(SharedMemory &shm, const MQId &remote_id, const MsgI &msg, const int timeout_ms)
+
+bool ShmMsgQueue::TrySend(SharedMemory &shm, const MQId &remote_id, const MsgI &msg, OnSend const &onsend)
{
- Queue *remote = Find(shm, MsgQIdToName(remote_id));
- return remote && remote->Write(msg, timeout_ms, [](const MsgI &msg) { msg.AddRef(); });
+ Queue *remote = FindRemote(shm, remote_id);
+ if (remote) {
+ if (onsend) {
+ return remote->TryWrite(msg, [&onsend](const MsgI &msg) { onsend(); msg.AddRef(); });
+ } else {
+ return remote->TryWrite(msg, [](const MsgI &msg) { msg.AddRef(); });
+ }
+ } else {
+ // SetLestError(eNotFound);
+ return false;
+ }
}
// 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::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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