less memory

zhangmeng

2024-01-18 d3d9b7341ef7613e0d2813b69491ffcef5736f48

 api/bhsgo/bhome_node.go

@@ -14,10 +14,8 @@
   bh "basic.com/valib/c_bhomebus.git/proto/source/bhome_msg"
)

func unsafeGetBytes(s string) []byte {
   const MaxInt32 = 1<<31 - 1
   return (*[MaxInt32]byte)(unsafe.Pointer((*reflect.StringHeader)(
      unsafe.Pointer(&s)).Data))[: len(s)&MaxInt32 : len(s)&MaxInt32]
func unsafeGetBytes(p unsafe.Pointer, s int) []byte {
   return (*[0x7fffffff]byte)(p)[:s:s]
}

func ByteSlice2String(bs []byte) string {
@@ -46,7 +44,8 @@
   r := C.BHRegister(getPtr(&data), C.int(len(data)), &creply, &creply_len, C.int(timeout_ms)) > 0
   defer C.BHFree(creply, creply_len)
   if r {
      reply.Unmarshal(C.GoBytes(creply, creply_len))
      // reply.Unmarshal(C.GoBytes(creply, creply_len))
      reply.Unmarshal(unsafeGetBytes(creply, int(creply_len)))
   }
   return r
}
@@ -59,7 +58,8 @@
   r := C.BHRegisterTopics(getPtr(&data), C.int(len(data)), &creply, &creply_len, C.int(timeout_ms)) > 0
   defer C.BHFree(creply, creply_len)
   if r {
      reply.Unmarshal(C.GoBytes(creply, creply_len))
      // reply.Unmarshal(C.GoBytes(creply, creply_len))
      reply.Unmarshal(unsafeGetBytes(creply, int(creply_len)))
   }
   return r
}
@@ -72,7 +72,8 @@
   r := C.BHSubscribeTopics(getPtr(&data), C.int(len(data)), &creply, &creply_len, C.int(timeout_ms)) > 0
   defer C.BHFree(creply, creply_len)
   if r {
      reply.Unmarshal(C.GoBytes(creply, creply_len))
      // reply.Unmarshal(C.GoBytes(creply, creply_len))
      reply.Unmarshal(unsafeGetBytes(creply, int(creply_len)))
   }
   return r
}
@@ -85,7 +86,8 @@
   r := C.BHSubscribeNetTopics(getPtr(&data), C.int(len(data)), &creply, &creply_len, C.int(timeout_ms)) > 0
   defer C.BHFree(creply, creply_len)
   if r {
      reply.Unmarshal(C.GoBytes(creply, creply_len))
      // reply.Unmarshal(C.GoBytes(creply, creply_len))
      reply.Unmarshal(unsafeGetBytes(creply, int(creply_len)))
   }
   return r
}
@@ -98,7 +100,8 @@
   r := C.BHHeartbeat(getPtr(&data), C.int(len(data)), &creply, &creply_len, C.int(timeout_ms)) > 0
   defer C.BHFree(creply, creply_len)
   if r {
      reply.Unmarshal(C.GoBytes(creply, creply_len))
      // reply.Unmarshal(C.GoBytes(creply, creply_len))
      reply.Unmarshal(unsafeGetBytes(creply, int(creply_len)))
   }
   return r
}
@@ -115,7 +118,8 @@
   r := C.BHUnregister(getPtr(&data), C.int(len(data)), &creply, &creply_len, C.int(timeout_ms)) > 0
   defer C.BHFree(creply, creply_len)
   if r {
      reply.Unmarshal(C.GoBytes(creply, creply_len))
      // reply.Unmarshal(C.GoBytes(creply, creply_len))
      reply.Unmarshal(unsafeGetBytes(creply, int(creply_len)))
   }
   return r
}
@@ -129,7 +133,8 @@
   r := C.BHQueryTopicAddress(getPtr(&dest), C.int(len(dest)), getPtr(&data), C.int(len(data)), &creply, &creply_len, C.int(timeout_ms)) > 0
   defer C.BHFree(creply, creply_len)
   if r {
      reply.Unmarshal(C.GoBytes(creply, creply_len))
      // reply.Unmarshal(C.GoBytes(creply, creply_len))
      reply.Unmarshal(unsafeGetBytes(creply, int(creply_len)))
   }
   return r

@@ -144,7 +149,8 @@
   r := C.BHQueryProcs(getPtr(&dest), C.int(len(dest)), getPtr(&data), C.int(len(data)), &creply, &creply_len, C.int(timeout_ms)) > 0
   defer C.BHFree(creply, creply_len)
   if r {
      reply.Unmarshal(C.GoBytes(creply, creply_len))
      // reply.Unmarshal(C.GoBytes(creply, creply_len))
      reply.Unmarshal(unsafeGetBytes(creply, int(creply_len)))
   }
   return r

@@ -162,18 +168,12 @@
   creply := unsafe.Pointer(nil)
   creply_len := C.int(0)
   

   r := C.BHReadSub(&cpid, &cpid_len, &creply, &creply_len, C.int(timeout_ms)) > 0
   defer C.BHFree(cpid, cpid_len)
   defer C.BHFree(creply, creply_len)
   if r {
      //*proc_id = string(C.GoBytes(cpid, cpid_len))
      //pub.Unmarshal(C.GoBytes(creply, creply_len))

      //const MaxInt32 = 1<<32 - 1
      const maxLen = 0x7fffffff
      *proc_id = ByteSlice2String((*[maxLen]byte)(unsafe.Pointer(cpid))[:cpid_len:cpid_len])
      pub.Unmarshal((*[maxLen]byte)(unsafe.Pointer(creply))[:creply_len:creply_len])
      *proc_id = ByteSlice2String(unsafeGetBytes(cpid, int(cpid_len)))
      pub.Unmarshal(unsafeGetBytes(creply, int(creply_len)))
   }

   return r
@@ -206,8 +206,10 @@
   defer C.BHFree(cpid, cpid_len)
   defer C.BHFree(creply, creply_len)
   if r {
      *proc_id = string(C.GoBytes(cpid, cpid_len))
      reply.Unmarshal(C.GoBytes(creply, creply_len))
      // *proc_id = string(C.GoBytes(cpid, cpid_len))
      // reply.Unmarshal(C.GoBytes(creply, creply_len))
      *proc_id = ByteSlice2String(unsafeGetBytes(cpid, int(cpid_len)))
      reply.Unmarshal(unsafeGetBytes(creply, int(creply_len)))
   }
   return r
}
@@ -223,8 +225,10 @@
   defer C.BHFree(cpid, cpid_len)
   defer C.BHFree(creply, creply_len)
   if r {   
      *proc_id = string(C.GoBytes(cpid, cpid_len))
      req.Unmarshal(C.GoBytes(creply, creply_len))
      // *proc_id = string(C.GoBytes(cpid, cpid_len))
      // req.Unmarshal(C.GoBytes(creply, creply_len))
      *proc_id = ByteSlice2String(unsafeGetBytes(cpid, int(cpid_len)))
      req.Unmarshal(unsafeGetBytes(creply, int(creply_len)))
   }
   return r
}
@@ -241,7 +245,8 @@
   
   r := C.BHGetLastError(&creply, &creply_len)
   defer C.BHFree(creply, creply_len)
   return int(r), string(C.GoBytes(creply, creply_len))
   // return int(r), string(C.GoBytes(creply, creply_len))
   return int(r), ByteSlice2String(unsafeGetBytes(creply, int(creply_len)))

}