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dont hold lock while calling callbacks

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This commit is contained in:
Jeff Hill
2001-04-16 22:38:38 +00:00
parent 4b99a3d268
commit 332a7228a8
42 changed files with 2623 additions and 1964 deletions
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48
src/ca/oldChannelNotify.cpp
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@@ -18,7 +18,7 @@
#include "iocinf.h"
#include "oldAccess.h"
tsFreeList < class oldChannelNotify, 1024 > oldChannelNotify::freeList;
tsFreeList < struct oldChannelNotify, 1024 > oldChannelNotify::freeList;
epicsMutex oldChannelNotify::freeListMutex;
extern "C" void cacNoopConnHandler ( struct connection_handler_args )
@@ -29,19 +29,17 @@ extern "C" void cacNoopAccesRightsHandler ( struct access_rights_handler_args )
{
}
oldChannelNotify::oldChannelNotify ( caCh *pConnCallBackIn, void *pPrivateIn ) :
pConnCallBack ( pConnCallBackIn ? pConnCallBackIn : cacNoopConnHandler ),
oldChannelNotify::oldChannelNotify ( cac &cacIn, const char *pName,
caCh *pConnCallBackIn, void *pPrivateIn ) :
io ( cacIn.createChannel ( pName, *this ) ),
pConnCallBack ( pConnCallBackIn ? pConnCallBackIn : cacNoopConnHandler ),
pPrivate ( pPrivateIn ), pAccessRightsFunc ( cacNoopAccesRightsHandler )
{
}
oldChannelNotify::~oldChannelNotify ()
{
}
void oldChannelNotify::release ()
{
delete this;
delete & this->io;
}
void oldChannelNotify::setPrivatePointer ( void *pPrivateIn )
@@ -54,16 +52,16 @@ void * oldChannelNotify::privatePointer () const
return this->pPrivate;
}
int oldChannelNotify::changeConnCallBack ( cacChannelIO &chan, caCh *pfunc )
int oldChannelNotify::changeConnCallBack ( caCh *pfunc )
{
this->pConnCallBack = pfunc ? pfunc : cacNoopConnHandler;
// test for NOOP connection handler does _not_ occur here because the
// lock is not applied
chan.notifyStateChangeFirstConnectInCountOfOutstandingIO ();
this->io.notifyStateChangeFirstConnectInCountOfOutstandingIO ();
return ECA_NORMAL;
}
int oldChannelNotify::replaceAccessRightsEvent ( cacChannelIO &chan, caArh *pfunc )
int oldChannelNotify::replaceAccessRightsEvent ( caArh *pfunc )
{
// The order of the following is significant to guarantee that the
// access rights handler is always gets called even if the channel connects
@@ -71,36 +69,39 @@ int oldChannelNotify::replaceAccessRightsEvent ( cacChannelIO &chan, caArh *pfun
// handler could be called twice here with the same access rights state, but
// that will not upset the application.
this->pAccessRightsFunc = pfunc ? pfunc : cacNoopAccesRightsHandler;
if ( chan.connected () ) {
if ( this->io.connected () ) {
struct access_rights_handler_args args;
args.chid = &chan;
args.ar = chan.accessRights ();
args.chid = this;
caAccessRights tmp = this->io.accessRights ();
args.ar.read_access = tmp.readPermit ();
args.ar.write_access = tmp.writePermit ();
( *pfunc ) ( args );
}
return ECA_NORMAL;
}
void oldChannelNotify::connectNotify ( cacChannelIO &chan )
void oldChannelNotify::connectNotify ( cacChannel & )
{
struct connection_handler_args args;
args.chid = &chan;
args.chid = this;
args.op = CA_OP_CONN_UP;
( *this->pConnCallBack ) ( args );
}
void oldChannelNotify::disconnectNotify ( cacChannelIO &chan )
void oldChannelNotify::disconnectNotify ( cacChannel & )
{
struct connection_handler_args args;
args.chid = &chan;
args.chid = this;
args.op = CA_OP_CONN_DOWN;
( *this->pConnCallBack ) ( args );
}
void oldChannelNotify::accessRightsNotify ( cacChannelIO &chan, const caar &ar )
void oldChannelNotify::accessRightsNotify ( cacChannel &, const caAccessRights &ar )
{
struct access_rights_handler_args args;
args.chid = &chan;
args.ar = ar;
args.chid = this;
args.ar.read_access = ar.readPermit();
args.ar.write_access = ar.writePermit();
( *this->pAccessRightsFunc ) ( args );
}
@@ -109,11 +110,6 @@ bool oldChannelNotify::includeFirstConnectInCountOfOutstandingIO () const
return ( this->pConnCallBack == cacNoopConnHandler );
}
class oldChannelNotify * oldChannelNotify::pOldChannelNotify ()
{
return this;
}
void * oldChannelNotify::operator new ( size_t size )
{
epicsAutoMutex locker ( oldChannelNotify::freeListMutex );