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use placement new

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This commit is contained in:
Jeff Hill
2002-10-23 23:37:30 +00:00
parent 340e0c1d58
commit e36083d5ef
22 changed files with 712 additions and 455 deletions
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117
src/ca/cac.cpp
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@@ -23,11 +23,10 @@
#include <new>
#include "epicsMemory.h"
#include "epicsGuard.h"
#include "epicsVersion.h"
#include "osiProcess.h"
#include "osiSigPipeIgnore.h"
#include "epicsSignal.h"
#include "envDefs.h"
#define epicsExportSharedSymbols
@@ -43,6 +42,7 @@
#include "udpiiu.h"
#include "bhe.h"
#include "net_convert.h"
#include "autoPtrDestroy.h"
static const char *id = "@(#) " EPICS_VERSION_STRING ", CA Portable Server Library" __DATE__;
@@ -137,6 +137,7 @@ cac::cac ( cacNotify & notifyIn, bool enablePreemptiveCallbackIn ) :
programBeginTime ( epicsTime::getCurrent() ),
connTMO ( CA_CONN_VERIFY_PERIOD ),
cbMutex ( ! enablePreemptiveCallbackIn ),
globalServiceList ( globalServiceListCAC ),
timerQueue ( epicsTimerQueueActive::allocate ( false,
lowestPriorityLevelAbove(epicsThreadGetPrioritySelf()) ) ),
pUserName ( 0 ),
@@ -158,7 +159,7 @@ cac::cac ( cacNotify & notifyIn, bool enablePreemptiveCallbackIn ) :
try {
long status;
installSigPipeIgnore ();
epicsSignalInstallSigPipeIgnore ();
{
char tmp[256];
@@ -272,7 +273,16 @@ cac::~cac ()
delete [] this->pUserName;
this->beaconTable.traverse ( &bhe::destroy );
tsSLList < bhe > tmpBeaconList;
this->beaconTable.removeAll ( tmpBeaconList );
while ( bhe * pBHE = tmpBeaconList.get() ) {
pBHE->~bhe ();
# if defined ( CXX_PLACEMENT_DELETE ) && 0
bhe::operator delete ( pBHE, this->bheFreeList );
# else
this->bheFreeList.release ( pBHE );
# endif
}
osiSockRelease ();
@@ -401,10 +411,16 @@ void cac::beaconNotify ( const inetAddrID & addr, const epicsTime & currentTime,
* time that we have seen a server's beacon
* shortly after the program started up)
*/
pBHE = new bhe ( currentTime, beaconNumber, addr );
pBHE = new ( this->bheFreeList )
bhe ( currentTime, beaconNumber, addr );
if ( pBHE ) {
if ( this->beaconTable.add ( *pBHE ) < 0 ) {
pBHE->destroy ();
pBHE->~bhe ();
# if defined ( CXX_PLACEMENT_DELETE ) && 0
bhe::operator delete ( pBHE, this->bheFreeList );
# else
this->bheFreeList.release ( pBHE );
# endif
}
}
return;
@@ -453,8 +469,6 @@ void cac::registerService ( cacService & service )
cacChannel & cac::createChannel ( const char * pName,
cacChannelNotify & chan, cacChannel::priLev pri )
{
cacChannel *pIO;
if ( pri > cacChannel::priorityMax ) {
throw cacChannel::badPriority ();
}
@@ -463,24 +477,23 @@ cacChannel & cac::createChannel ( const char * pName,
throw cacChannel::badString ();
}
pIO = this->services.createChannel ( pName, chan, pri );
if ( ! pIO ) {
pIO = pGlobalServiceListCAC->createChannel ( pName, chan, pri );
if ( ! pIO ) {
if ( ! this->pudpiiu ) {
epicsGuard < cacMutex > guard ( this->mutex );
if ( ! this->pudpiiu ) {
this->pudpiiu = new udpiiu ( this->timerQueue, this->cbMutex, *this );
}
}
autoPtrDestroy < cacChannel >
pIO ( this->services.createChannel ( pName, chan, pri ) );
if ( pIO.get() == 0 ) {
pIO = this->globalServiceList->createChannel ( pName, chan, pri );
if ( pIO.get() == 0 ) {
epicsGuard < cacMutex > guard ( this->mutex );
epics_auto_ptr < nciu > pNetChan
( new nciu ( *this, *this->pudpiiu, chan, pName, pri ) );
if ( ! this->pudpiiu ) {
this->pudpiiu = new udpiiu ( this->timerQueue, this->cbMutex, *this );
}
autoPtrDestroy < nciu > pNetChan
( new ( this->channelFreeList )
nciu ( *this, *this->pudpiiu, chan, pName, pri ) );
this->chanTable.add ( *pNetChan );
return *pNetChan.release ();
return * pNetChan.release ();
}
}
return *pIO;
return * pIO.release ();
}
void cac::repeaterSubscribeConfirmNotify ()
@@ -524,11 +537,10 @@ bool cac::lookupChannelAndTransferToTCP (
if ( ! sockAddrAreIdentical ( &addr, &chanAddr ) ) {
char acc[64];
pChan->getPIIU()->hostName ( acc, sizeof ( acc ) );
msgForMultiplyDefinedPV *pMsg = new msgForMultiplyDefinedPV (
this->cbMutex, *this, pChan->pName (), acc, addr );
if ( pMsg ) {
this->ipAddrToAsciiAsynchronousRequestInstall ( *pMsg );
}
msgForMultiplyDefinedPV * pMsg = new ( this->mdpvFreeList )
msgForMultiplyDefinedPV (
this->cbMutex, *this, pChan->pName (), acc, addr );
this->ipAddrToAsciiAsynchronousRequestInstall ( *pMsg );
}
return true;
}
@@ -547,23 +559,13 @@ bool cac::lookupChannelAndTransferToTCP (
try {
epics_auto_ptr < tcpiiu > pnewiiu ( new tcpiiu (
*this, this->cbMutex, this->connTMO, this->timerQueue,
addr, minorVersionNumber, this->ipToAEngine,
pChan->getPriority() ) );
if ( pnewiiu.get() == 0 ) {
return true;
}
addr, this->comBufMemMgr, minorVersionNumber,
this->ipToAEngine, pChan->getPriority() ) );
bhe * pBHE = this->beaconTable.lookup ( addr.ia );
if ( ! pBHE ) {
epics_auto_ptr < bhe > pNewBHE ( new bhe ( epicsTime (), 0u, addr.ia ) );
if ( pNewBHE.get () ) {
if ( this->beaconTable.add ( *pNewBHE ) >= 0 ) {
pBHE = pNewBHE.release ();
}
else {
return true;
}
}
else {
pBHE = new ( this->bheFreeList )
bhe ( epicsTime (), 0u, addr.ia );
if ( this->beaconTable.add ( *pBHE ) < 0 ) {
return true;
}
}
@@ -572,8 +574,11 @@ bool cac::lookupChannelAndTransferToTCP (
piiu = pnewiiu.release ();
newIIU = true;
}
catch ( std::bad_alloc & ) {
return true;
}
catch ( ... ) {
this->printf ( "CAC: Exception during virtual circuit creation\n" );
this->printf ( "CAC: Unexpected exception during virtual circuit creation\n" );
return true;
}
}
@@ -625,7 +630,7 @@ bool cac::lookupChannelAndTransferToTCP (
return true;
}
void cac::uninstallChannel ( nciu & chan )
void cac::destroyChannel ( nciu & chan )
{
tsDLList < baseNMIU > tmpList;
@@ -707,6 +712,14 @@ void cac::uninstallChannel ( nciu & chan )
chan.getPIIU()->uninstallChan ( guard, chan );
}
}
// run channel's destructor and return it to the free list
chan.~nciu ();
# if defined ( CXX_PLACEMENT_DELETE ) && 0
nciu::operator delete ( & chan, this->channelFreeList );
# else
this->channelFreeList.release ( & chan );
# endif
}
int cac::printf ( const char *pformat, ... ) const
@@ -1043,17 +1056,17 @@ void cac::disconnectAllIO ( epicsGuard < cacMutex > &locker, nciu & chan, bool e
void cac::recycleReadNotifyIO ( netReadNotifyIO &io )
{
this->freeListReadNotifyIO.release ( &io, sizeof ( io ) );
this->freeListReadNotifyIO.release ( & io );
}
void cac::recycleWriteNotifyIO ( netWriteNotifyIO &io )
{
this->freeListWriteNotifyIO.release ( &io, sizeof ( io ) );
this->freeListWriteNotifyIO.release ( & io );
}
void cac::recycleSubscription ( netSubscription &io )
{
this->freeListSubscription.release ( &io, sizeof ( io ) );
this->freeListSubscription.release ( & io );
}
cacChannel::ioid
@@ -1574,3 +1587,13 @@ void cac::initiateConnect ( nciu & chan )
this->pudpiiu->installChannel ( chan );
}
void *cacComBufMemoryManager::allocate ( size_t size ) throw ( std::bad_alloc )
{
return this->freeList.allocate ( size );
}
void cacComBufMemoryManager::release ( void * pCadaver ) throw ()
{
return this->freeList.release ( pCadaver );
}