2 // Copyright 2019 AT&T Intellectual Property
3 // Copyright 2019 Nokia
5 // Licensed under the Apache License, Version 2.0 (the "License");
6 // you may not use this file except in compliance with the License.
7 // You may obtain a copy of the License at
9 // http://www.apache.org/licenses/LICENSE-2.0
11 // Unless required by applicable law or agreed to in writing, software
12 // distributed under the License is distributed on an "AS IS" BASIS,
13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 // See the License for the specific language governing permissions and
15 // limitations under the License.
20 // #cgo LDFLAGS: -L/usr/local/lib -lrmr_nng -lnng
21 // #include <rmr/rmr.h>
22 // #include <stdlib.h>
28 "github.com/pkg/errors"
35 Allocates an mBuf and initialize it with the content of C.rmr_mbuf_t.
36 The xAction field is assigned a a value without trailing spaces.
38 func convertToMBuf(m *C.rmr_mbuf_t) (*MBuf, error) {
39 payloadArr := C.GoBytes(unsafe.Pointer(m.payload), C.int(m.len))
40 xActionArr := C.GoBytes(unsafe.Pointer(m.xaction), C.int(RMR_MAX_XACTION_LEN))
42 // Trim padding (space and 0)
43 xActionStr := strings.TrimRight(string(xActionArr), "\040\000")
44 xActionArr = []byte(xActionStr)
49 //Payload: (*[]byte)(unsafe.Pointer(m.payload)),
51 //XAction: (*[]byte)(unsafe.Pointer(m.xaction)),
55 meidBuf := make([]byte, RMR_MAX_MEID_LEN)
56 if meidCstr := C.rmr_get_meid(m, (*C.uchar)(unsafe.Pointer(&meidBuf[0]))); meidCstr != nil {
57 mbuf.Meid = strings.TrimRight(string(meidBuf), "\000")
64 Allocates an C.rmr_mbuf_t and initialize it with the content of mBuf.
65 The xAction field is padded with trailing spaces upto capacity
67 func (ctx *Context) getAllocatedCRmrMBuf(mBuf *MBuf, maxMsgSize int) (cMBuf *C.rmr_mbuf_t, rc error) {
68 var xActionBuf [RMR_MAX_XACTION_LEN]byte
69 var meidBuf [RMR_MAX_MEID_LEN]byte
71 cMBuf = C.rmr_alloc_msg(ctx.RmrCtx, C.int(maxMsgSize))
72 cMBuf.mtype = C.int(mBuf.MType)
73 cMBuf.len = C.int(mBuf.Len)
75 payloadLen := len(mBuf.Payload)
76 xActionLen := len(mBuf.XAction)
78 copy(xActionBuf[:], mBuf.XAction)
79 for i := xActionLen; i < RMR_MAX_XACTION_LEN; i++ {
80 xActionBuf[i] = '\040' //space
84 copy(meidBuf[:], mBuf.Meid)
85 for i := len(mBuf.Meid); i < RMR_MAX_MEID_LEN; i++ {
89 payloadArr := (*[1 << 30]byte)(unsafe.Pointer(cMBuf.payload))[:payloadLen:payloadLen]
90 xActionArr := (*[1 << 30]byte)(unsafe.Pointer(cMBuf.xaction))[:RMR_MAX_XACTION_LEN:RMR_MAX_XACTION_LEN]
92 err := binary.Read(bytes.NewReader(mBuf.Payload), binary.LittleEndian, payloadArr)
94 return nil, errors.New(fmt.Sprintf("#rmrCgoUtils.getAllocatedCRmrMBuf - Failed to read payload to allocated RMR message buffer, %s", err))
96 err = binary.Read(bytes.NewReader(xActionBuf[:]), binary.LittleEndian, xActionArr)
98 return nil, errors.New(fmt.Sprintf("#rmrCgoUtils.getAllocatedCRmrMBuf - Failed to read xAction data to allocated RMR message buffer, %s", err))
101 len := C.rmr_bytes2meid(cMBuf, (*C.uchar)(unsafe.Pointer(&meidBuf[0])), C.int(RMR_MAX_XACTION_LEN))
102 if int(len) != RMR_MAX_MEID_LEN {
103 return nil, errors.New(
104 "#rmrCgoUtils.getAllocatedCRmrMBuf - Failed to copy meid data to allocated RMR message buffer")
109 func MessageIdToUint(id string) (msgId uint64, err error) {
113 msgId, err = strconv.ParseUint(id, 10, 16)