epics/epics-base
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This commit is contained in:
Jeff Hill
2000-06-08 15:11:54 +00:00
parent 0c960706b6
commit d53c56763b
9 changed files with 280 additions and 133 deletions
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66
src/db/dbPutNotifyIO.cpp
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@@ -28,54 +28,27 @@
#define epicsExportSharedSymbols
#include "dbCAC.h"
#include "dbPutNotifyIOIL.h"
#define S_db_Blocked (M_dbAccess|39)
#define S_db_Pending (M_dbAccess|37)
tsFreeList <dbPutNotifyIO> dbPutNotifyIO::freeList;
extern "C" void putNotifyCompletion ( putNotify *ppn )
{
dbPutNotifyIO *pNotify = static_cast < dbPutNotifyIO * > ( ppn->usrPvt );
if ( pNotify->pn.status ) {
if (pNotify->pn.status == S_db_Blocked) {
pNotify->cacNotifyIO::exceptionNotify ( ECA_PUTCBINPROG, "put notify blocked" );
}
else {
pNotify->cacNotifyIO::exceptionNotify ( ECA_PUTFAIL, "put notify unsuccessful");
}
}
else {
pNotify->cacNotifyIO::completionNotify ();
}
pNotify->ioComplete = true;
pNotify->destroy ();
}
dbPutNotifyIO::dbPutNotifyIO ( cacNotify &notifyIn, dbPutNotifyBlocker &blockerIn ) :
cacNotifyIO ( notifyIn ), blocker ( blockerIn ), ioComplete ( false )
cacNotifyIO ( notifyIn ), blocker ( blockerIn )
{
memset ( &this->pn, '\0', sizeof ( this->pn ) );
this->pn.userCallback = putNotifyCompletion;
this->pn.usrPvt = this;
// wait for current put notify to complete
this->blocker.chan.lock ();
while ( this->blocker.pPN ) {
this->blocker.chan.unlock ();
this->blocker.block.wait ( 1.0 );
this->blocker.chan.lock ();
}
this->blocker.pPN = this;
this->blocker.chan.unlock ();
this->pn.usrPvt = &blockerIn;
}
dbPutNotifyIO::~dbPutNotifyIO ()
{
if ( ! this->ioComplete ) {
if ( this->pn.paddr ) {
dbNotifyCancel ( &this->pn );
}
this->blocker.pPN = 0;
this->blocker.block.signal ();
this->blocker.putNotifyDestroyNotify ();
}
int dbPutNotifyIO::initiate ( struct dbAddr &addr, unsigned type,
@@ -94,28 +67,35 @@ int dbPutNotifyIO::initiate ( struct dbAddr &addr, unsigned type,
this->pn.paddr = &addr;
status = this->pn.dbrType = dbPutNotifyMapType ( &this->pn, static_cast <short> ( type ) );
if (status) {
this->pn.paddr = 0;
return ECA_BADTYPE;
}
status = ::dbPutNotify ( &this->pn );
if ( status && status != S_db_Pending ) {
this->pn.paddr = 0;
this->pn.status = status;
this->cacNotifyIO::exceptionNotify ( ECA_PUTFAIL, "dbPutNotify() returned failure");
}
return ECA_NORMAL;
}
void dbPutNotifyIO::destroy ()
void dbPutNotifyIO::completion ()
{
delete this;
if ( ! this->pn.paddr ) {
errlogPrintf ( "completion pn=%p\n", this );
}
this->pn.paddr = 0;
if ( this->pn.status ) {
if ( this->pn.status == S_db_Blocked ) {
this->cacNotifyIO::exceptionNotify ( ECA_PUTCBINPROG, "put notify blocked" );
}
else {
this->cacNotifyIO::exceptionNotify ( ECA_PUTFAIL, "put notify unsuccessful");
}
}
else {
this->cacNotifyIO::completionNotify ();
}
}
void * dbPutNotifyIO::operator new ( size_t size )
{
return dbPutNotifyIO::freeList.allocate ( size );
}
void dbPutNotifyIO::operator delete ( void *pCadaver, size_t size )
{
dbPutNotifyIO::freeList.release ( pCadaver, size );
}