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cmRtNet.h/c : Added hdrByteCnt field to cmRtNetSyncMsg_t. Updated _cmRtNetDeserializeSyncMsg()

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to use cmRtNetSyncMsg_t.hdrByteCnt.
This commit is contained in:
kpl 2014-06-16 10:42:55 -07:00
parent 6815dd3570
commit 51a0d5c006
2 changed files with 7 additions and 4 deletions
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10
cmRtNet.c
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@ -263,7 +263,9 @@ unsigned _cmRtNetNodeEndpointCount( cmRtNetNode_t* np )
}
unsigned _cmRtNetSyncMsgSerialByteCount( const cmRtNetSyncMsg_t* m )
{ return sizeof(cmRtNetSyncMsg_t) + (m->label==NULL ? 1 : strlen(m->label) + 1); }
{
return sizeof(cmRtNetSyncMsg_t) + (m->label==NULL ? 1 : strlen(m->label) + 1);
}
cmRtNetRC_t _cmRtNetSerializeSyncMsg( cmRtNet_t* p, const cmRtNetSyncMsg_t* m, void* buf, unsigned n )
{
@ -283,7 +285,7 @@ cmRtNetRC_t _cmRtNetDeserializeSyncMsg( const void* buf, unsigned n, cmRtNetSync
assert( n > sizeof(*m));
memcpy(m,buf,sizeof(*m));
const cmRtNetSyncMsg_t* mp = (const cmRtNetSyncMsg_t*)buf;
const cmChar_t* s = (const cmChar_t*)(mp+1);
const cmChar_t* s = ((const cmChar_t*)(mp)) + mp->hdrByteCnt;
m->label = cmMemAllocStr(s);
return kOkNetRC;
}
@ -297,6 +299,7 @@ cmRtNetRC_t _cmRtNetSendSyncMsg( cmRtNet_t* p, cmRtNetNode_t* np, cmRtNetSelId_t
m.hdr.rtSubIdx = cmInvalidIdx;
m.hdr.selId = kNetSyncSelRtId;
m.selId = selId;
m.hdrByteCnt = sizeof(cmRtNetSyncMsg_t);
m.label = msgLabel;
m.id = msgId;
m.rtSubIdx = msgRtSubIdx;
@ -524,7 +527,7 @@ cmRtNetRC_t _cmRtNetSendEndpointReplyMsg( cmRtNet_t* p, cmRtNetNode_t* np, cmRt
bool _cmRtNetIsSyncModeMsg( const void* data, unsigned dataByteCnt )
{
cmRtNetSyncMsg_t* m = (cmRtNetSyncMsg_t*)data;
return dataByteCnt >= sizeof(cmRtNetSyncMsg_t) && m->hdr.selId == kNetSyncSelRtId;
return dataByteCnt >= sizeof(cmRtSysMsgHdr_t) && m->hdr.selId == kNetSyncSelRtId;
}
// When the network message recieve function (See cmRtNetAlloc() 'cbFunc')
@ -673,7 +676,6 @@ void _cmRtNetRecv( void* cbArg, const char* data, unsigned dataByteCnt, const st
else
{
// All non-sync messages arriving here are prefixed by a cmRtNetMsg_t header - fill in the source addr here.
// NOTE: the source addr could be filled in by the sender but this would increase the size
// of the msg. Instead we choose the more time consuming method of looking up the
// soure node here - hmmmm????.

1
cmRtNet.h
View File

@ -63,6 +63,7 @@ extern "C" {
{
cmRtSysMsgHdr_t hdr; // standard cmRtSys msg header
cmRtNetSelId_t selId; // message selector id (See kXXXSelNetId above)
unsigned hdrByteCnt; // size of the header record at transmission (used to locate the serialzed label)
unsigned rtSubIdx; // cmInvalidIdx or rtSubIdx
unsigned id; // endptCnt or endpoint id
const cmChar_t* label; // node or endpoint label