less memory

zhangmeng

2024-01-18 d3d9b7341ef7613e0d2813b69491ffcef5736f48

less memory

 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)))

}