From 34cd75f77d0ca94dbdba4e6cc9451fe4d33e78b3 Mon Sep 17 00:00:00 2001
From: lichao <lichao@aiotlink.com>
Date: 星期三, 19 五月 2021 19:14:13 +0800
Subject: [PATCH] add api BHQueryProcs.
---
src/shm_queue.cpp | 91 +--------------------------------------------
1 files changed, 2 insertions(+), 89 deletions(-)
diff --git a/src/shm_queue.cpp b/src/shm_queue.cpp
index 401f346..86f0d91 100644
--- a/src/shm_queue.cpp
+++ b/src/shm_queue.cpp
@@ -15,97 +15,10 @@
*
* =====================================================================================
*/
+
#include "shm_queue.h"
-#include <boost/uuid/uuid_io.hpp>
-#include <boost/uuid/uuid_generators.hpp>
#include "bh_util.h"
-namespace bhome_shm {
-
-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;
- }
-}
-
-}
-
-// 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)
+namespace bhome_shm
{
-}
-
-ShmMsgQueue::ShmMsgQueue(ShmType &segment, const int len):ShmMsgQueue(NewId(), segment, len)
-{}
-
-ShmMsgQueue::~ShmMsgQueue()
-{
- Remove();
-}
-
-bool ShmMsgQueue::Send(const MQId &remote_id, const Msg &msg, const int timeout_ms)
-{
- Queue *remote = find(MsgQIdToName(remote_id));
- return remote && remote->Write(msg, timeout_ms, [](const Msg&msg){msg.AddRef();});
-}
-
-bool ShmMsgQueue::Send(const MQId &remote_id, const void *data, const size_t size, const int timeout_ms)
-{
- // 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.
-
- Msg msg;
- if(msg.Build(shm(), Id(), data, size, false)) {
- if(Send(remote_id, msg, timeout_ms)) {
- return true;
- } else {
- msg.Release(shm());
- }
- }
- return false;
-}
-
-bool ShmMsgQueue::Recv(MQId &source_id, void *&data, size_t &size, const int timeout_ms)
-{
- Msg msg;
- if (Read(msg, timeout_ms)) {
- DEFER1(msg.Release(shm()););
-
- auto ptr = msg.get<char>();
- if (ptr) {
- MsgMetaV1 meta;
- meta.Parse(ptr);
- source_id = meta.src_id_;
- size = meta.data_size_;
- data = malloc(size);
- if (data) {
- memcpy(data, ptr + meta.self_size_, size);
- return true;
- }
- }
- }
- source_id = EmptyId();
- data = 0;
- size = 0;
- return false;
-}
-
} // namespace bhome_shm
-
--
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