From b3b9d91eccd3f54be112ac5389b49969fea93b4c Mon Sep 17 00:00:00 2001
From: lichao <lichao@aiotlink.com>
Date: 星期三, 21 四月 2021 13:22:55 +0800
Subject: [PATCH] trivial.
---
src/msg.cpp | 90 ++++++++++++++++++++++++++++++++++++++++-----
1 files changed, 80 insertions(+), 10 deletions(-)
diff --git a/src/msg.cpp b/src/msg.cpp
index e8c6d26..06b817e 100644
--- a/src/msg.cpp
+++ b/src/msg.cpp
@@ -16,20 +16,90 @@
* =====================================================================================
*/
#include "msg.h"
+#include "bh_util.h"
-namespace bhome_shm {
-
-
-bool MsgMetaV1::Parse(const void *p)
+namespace bhome_msg
{
- assert(p);
- *this = *static_cast<const MsgMetaV1*>(p);
- return tag_ == kMsgMetaTag;
+/*TODO change msg format, header has proc info;
+reply has errer msg
+ center accept request and route.;
+//*/
+const uint32_t kMsgTag = 0xf1e2d3c4;
+
+void *MsgI::Pack(SharedMemory &shm,
+ const uint32_t head_len, const ToArray &headToArray,
+ const uint32_t body_len, const ToArray &bodyToArray)
+{
+ void *addr = shm.Alloc(sizeof(head_len) + head_len + sizeof(body_len) + body_len);
+ if (addr) {
+ auto p = static_cast<char *>(addr);
+ auto Pack1 = [&p](auto len, auto &writer) {
+ Put32(p, len);
+ p += sizeof(len);
+ writer(p, len);
+ p += len;
+ };
+ Pack1(head_len, headToArray);
+ Pack1(body_len, bodyToArray);
+ }
+ return addr;
}
-void MsgMetaV1::Pack(void *p)
+bool MsgI::ParseHead(BHMsgHead &head) const
{
- *static_cast<MsgMetaV1*>(p) = *this;
+ auto p = static_cast<char *>(ptr_.get());
+ assert(p);
+ uint32_t msg_size = Get32(p);
+ p += 4;
+ return head.ParseFromArray(p, msg_size);
}
-} // namespace bhome_shm
+// with ref count;
+bool MsgI::MakeRC(SharedMemory &shm, void *p)
+{
+ if (!p) {
+ return false;
+ }
+ RefCount *rc = shm.New<RefCount>();
+ if (!rc) {
+ shm.Dealloc(p);
+ return false;
+ }
+ MsgI(p, rc).swap(*this);
+ return true;
+}
+
+bool MsgI::Make(SharedMemory &shm, void *p)
+{
+ if (!p) {
+ return false;
+ }
+ MsgI(p, 0).swap(*this);
+ return true;
+}
+
+bool MsgI::EnableRefCount(SharedMemory &shm)
+{
+ if (!IsCounted()) {
+ count_ = shm.New<RefCount>();
+ }
+ return IsCounted();
+}
+
+int MsgI::Release(SharedMemory &shm)
+{
+ if (IsCounted()) {
+ const int n = count_->Dec();
+ if (n != 0) {
+ return n;
+ }
+ }
+ // free data
+ shm.Dealloc(ptr_);
+ ptr_ = 0;
+ shm.Delete(count_);
+ count_ = 0;
+ return 0;
+}
+
+} // namespace bhome_msg
--
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