void MSAConnection::doRead(void)
{
MSBuffer *hb=headBuffer() ;
MSBuffer *db=readBuffer() ;
int s,n;
if (isSet(MSProtocolConnection<MSA>::Reset)==MSTrue) return;
if((s=hb->put()-hb->get())<4)
{
if((n=readTheBuffer(hb,4-s))<0) return;
if((s=hb->put()-hb->get())<4) return;
_bytesToNextMessage=MSA::longAt(hb->get());
if (_bytesToNextMessage<=0)
{
hb->reset();
unset(MSProtocolConnection<MSA>::Read);
return;
}
}
if((n=readTheBuffer(db,_bytesToNextMessage))<0) return;
if((_bytesToNextMessage-=n)==0)
{
MSA d=MSA::importAObject( (char *) db->get(), db->put()-db->get(), (char *)0);
hb->reset();
db->clear();
unset(MSProtocolConnection<MSA>::Read);
if(d.isNullMSA()==MSTrue){resetWithError(MSProtocolConnection<MSA>::Read);return;}
readNotify(d);
}
return;
}
int MSAConnection::doSyncRead(MSA &result_)
{
MSBuffer *hb=headBuffer();
MSBuffer *db=readBuffer();
int s,n;
if (isSet(MSProtocolConnection<MSA>::Reset)==MSTrue) return 0;
if ((s=hb->put()-hb->get())<4)
{
if ((n=readTheBuffer(hb,4-s))<0) return 0;
if((s=hb->put()-hb->get())<4) return 0;
_bytesToNextMessage=MSA::longAt(hb->get());
}
if((n=readTheBuffer(db,_bytesToNextMessage))<0) return 0;
if((_bytesToNextMessage-=n)==0)
{
result_=MSA::importAObject((char *) db->get(), db->put()-db->get(), (char *)0);
hb->reset();
db->clear();
unset(MSProtocolConnection<MSA>::Read);
if((result_.aStructPtr())==(MSAStruct *)0){resetWithError(MSProtocolConnection<MSA>::Read);return 0;}
}
return 1;
}
MSA MSAConnection::getAobjectFromBuffer(MSBuffer *buf_)
{
MSBuffer *hb=headBuffer();
MSBuffer *db=readBuffer();
int s,n;
if (isSet(MSProtocolConnection<MSA>::Reset)==MSTrue) return MSA();
if((s=hb->put()-hb->get())<4)
{
if((n=MSBuffer::buffToBuff(buf_,hb,4-s))<0) return MSA();
if((s=hb->put()-hb->get())<4) return MSA();
_bytesToNextMessage=MSA::longAt(hb->get());
if (_bytesToNextMessage<=0)
{
hb->reset();
unset(MSProtocolConnection<MSA>::Read);
return MSA();
}
}
if((n=MSBuffer::buffToBuff(buf_,db,_bytesToNextMessage))<0) return MSA();
if((_bytesToNextMessage-=n)==0)
{
MSA d=MSA::importAObject( (char *) db->get(), db->put()-db->get(), (char *)0);
hb->reset();
db->clear();
unset(MSProtocolConnection<MSA>::Read);
if(d.isNullMSA()==MSTrue)
{
resetWithError(MSProtocolConnection<MSA>::Read);return MSA();
}
return d;
}
return MSA();
}
void MSRawConnection::doRead(void)
{
int n;
MSBuffer *db=headBuffer();
if (isSet(MSProtocolConnection<MSString>::Reset)==MSTrue) return;
if((n=readTheBuffer(db,MaxReadSize))<0) return;
if((n=db->put()-db->get())>0)
{
unset(MSProtocolConnection<MSString>::Read);
MSString d(db->get(),n);
db->get(db->get()+n);
readNotify(d);
}
}
int MSRawConnection::doSyncRead(MSString &result_)
{
MSBuffer *db=headBuffer();
int n;
if (isSet(MSProtocolConnection<MSString>::Reset)==MSTrue) return 0;
if ((n=readTheBuffer(db,MaxReadSize))<0) return 0;
if((n=db->put()-db->get())>0)
{
unset(MSProtocolConnection<MSString>::Read);
result_=MSString(db->get(),n);
db->get(db->get()+n);
}
return 1;
}
I pString_Connection::syncDoRead(A *pdataobj)
{
I result;
MSBuffer *hb=headBuffer();
MSBuffer *db=readBuffer();
ipcWarn(wrnlvl(),"%t pString_Connection::syncDoRead\n");
*pdataobj=readOne();
if(*pdataobj==(A)0)
{
if(isInReset())
result=syncFillError("reset","Reset occurred. No message read.");
else result=0;
}
else result=1;
return result;
}
A pSimple_Connection::getAobjFromBuffer(MSBuffer *bb)
{
ipcWarn(wrnlvl(),"%t pSimple_Connection::getAobjFromBuffer\n");
MSBuffer *hb=headBuffer();
MSBuffer *db=readBuffer();
A d,z;
I s;
if(4>(s=hb->put()-hb->get()))
{
if(0>bufftobuff(bb,hb,4-s)) R(A)0;
if(4>(s=hb->put()-hb->get())) R(A)0;
s=longAt(hb->get());
if(0>=s)
{
static char fmt[]="\343 IPC warning: zero-length message found. s=%d [%d]\n";
Warn(fmt, s,handle());
hb->reset();
turnInReadOff();
R(A)0;
}
// create read buffer, doubled as A-object char array
d=gv(Ct,s);
db->minofbuffer((C *)d); db->get(db->minofbuffer());
db->put((C *)(d)); db->maxofbuffer(db->put()+s);
}
if(0>bufftobuff(bb,db,db->maxofbuffer()-db->put())) R(A)0;
if(db->put()==db->maxofbuffer())
{
z=(A)db->minofbuffer();
z->c=1;
hb->reset();
db->minofbuffer(0);
db->clear();
return z;
}
R(A)0;
}
A pSimple_Connection::readOne(void)
{
ipcWarn(wrnlvl(),"%t pSimple_Connection::readOne\n");
MSBuffer *hb=headBuffer();
MSBuffer *db=readBuffer();
int slen;
A d,z=(A)0;
if(4>(slen=hb->put()-hb->get()))
{
if(0>readTheBuffer(hb,4-slen)) return (A)0;
if(4>(slen=hb->put()-hb->get())) return (A)0;
slen=longAt(hb->get());
if(0>=slen)
{
static char fmt[]="\343 IPC warning: zero-length simple message. slen=%d [%d]\n";
Warn(fmt, slen,handle());
hb->reset();
turnInReadOff();
return (A)0;
}
d=gv(Ct,slen);
db->minofbuffer((C *)d); db->get(db->minofbuffer());
db->put((C *)(d)); db->maxofbuffer(db->put()+slen);
}
if(0>readTheBuffer(db,db->maxofbuffer()-db->put())) return (A)0;
if(db->put()==db->maxofbuffer())
{
z=(A)db->minofbuffer();
z->c=1;
hb->reset();
db->minofbuffer(0);
db->clear();
return z;
}
return (A)0;
}
