Files
llvm/lldb/source/API/SBBroadcaster.cpp
Greg Clayton 2d4edfbc6a Modified all logging calls to hand out shared pointers to make sure we
don't crash if we disable logging when some code already has a copy of the
logger. Prior to this fix, logs were handed out as pointers and if they were
held onto while a log got disabled, then it could cause a crash. Now all logs
are handed out as shared pointers so this problem shouldn't happen anymore.
We are also using our new shared pointers that put the shared pointer count
and the object into the same allocation for a tad better performance.

llvm-svn: 118319
2010-11-06 01:53:30 +00:00

185 lines
4.6 KiB
C++

//===-- SBBroadcaster.cpp ---------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "lldb/Core/Broadcaster.h"
#include "lldb/Core/Log.h"
#include "lldb/lldb-forward-rtti.h"
#include "lldb/API/SBBroadcaster.h"
#include "lldb/API/SBListener.h"
#include "lldb/API/SBEvent.h"
using namespace lldb;
using namespace lldb_private;
SBBroadcaster::SBBroadcaster () :
m_opaque_sp (),
m_opaque_ptr (NULL)
{
}
SBBroadcaster::SBBroadcaster (const char *name) :
m_opaque_sp (new Broadcaster (name)),
m_opaque_ptr (NULL)
{
m_opaque_ptr = m_opaque_sp.get();
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API | LIBLLDB_LOG_VERBOSE));
if (log)
log->Printf ("SBBroadcaster::SBBroadcaster (name=\"%s\") => SBBroadcaster(%p)",
name, m_opaque_ptr);
}
SBBroadcaster::SBBroadcaster (lldb_private::Broadcaster *broadcaster, bool owns) :
m_opaque_sp (owns ? broadcaster : NULL),
m_opaque_ptr (broadcaster)
{
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API | LIBLLDB_LOG_VERBOSE));
if (log)
log->Printf ("SBBroadcaster::SBBroadcaster (broadcaster=%p, bool owns=%i) => SBBroadcaster(%p)",
broadcaster, owns, m_opaque_ptr);
}
SBBroadcaster::SBBroadcaster (const SBBroadcaster &rhs) :
m_opaque_sp (rhs.m_opaque_sp),
m_opaque_ptr (rhs.m_opaque_ptr)
{
}
const SBBroadcaster &
SBBroadcaster::operator = (const SBBroadcaster &rhs)
{
if (this != &rhs)
{
m_opaque_sp = rhs.m_opaque_sp;
m_opaque_ptr = rhs.m_opaque_ptr;
}
return *this;
}
SBBroadcaster::~SBBroadcaster()
{
reset (NULL, false);
}
void
SBBroadcaster::BroadcastEventByType (uint32_t event_type, bool unique)
{
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
log->Printf ("SBBroadcaster(%p)::BroadcastEventByType (event_type=0x%8.8x, unique=%i)", m_opaque_ptr, event_type, unique);
if (m_opaque_ptr == NULL)
return;
if (unique)
m_opaque_ptr->BroadcastEventIfUnique (event_type);
else
m_opaque_ptr->BroadcastEvent (event_type);
}
void
SBBroadcaster::BroadcastEvent (const SBEvent &event, bool unique)
{
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
log->Printf ("SBBroadcaster(%p)::BroadcastEventByType (SBEvent(%p), unique=%i)", m_opaque_ptr, event.get(), unique);
if (m_opaque_ptr == NULL)
return;
EventSP event_sp = event.GetSP ();
if (unique)
m_opaque_ptr->BroadcastEventIfUnique (event_sp);
else
m_opaque_ptr->BroadcastEvent (event_sp);
}
void
SBBroadcaster::AddInitialEventsToListener (const SBListener &listener, uint32_t requested_events)
{
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
if (log)
log->Printf ("SBBroadcaster(%p)::AddInitialEventsToListener (SBListener(%p), event_mask=0x%8.8x)", m_opaque_ptr, listener.get(), requested_events);
if (m_opaque_ptr)
m_opaque_ptr->AddInitialEventsToListener (listener.get(), requested_events);
}
uint32_t
SBBroadcaster::AddListener (const SBListener &listener, uint32_t event_mask)
{
if (m_opaque_ptr)
return m_opaque_ptr->AddListener (listener.get(), event_mask);
return 0;
}
const char *
SBBroadcaster::GetName () const
{
if (m_opaque_ptr)
return m_opaque_ptr->GetBroadcasterName().GetCString();
return NULL;
}
bool
SBBroadcaster::EventTypeHasListeners (uint32_t event_type)
{
if (m_opaque_ptr)
return m_opaque_ptr->EventTypeHasListeners (event_type);
return false;
}
bool
SBBroadcaster::RemoveListener (const SBListener &listener, uint32_t event_mask)
{
if (m_opaque_ptr)
return m_opaque_ptr->RemoveListener (listener.get(), event_mask);
return false;
}
Broadcaster *
SBBroadcaster::get () const
{
return m_opaque_ptr;
}
void
SBBroadcaster::reset (Broadcaster *broadcaster, bool owns)
{
if (owns)
m_opaque_sp.reset (broadcaster);
else
m_opaque_sp.reset ();
m_opaque_ptr = broadcaster;
}
bool
SBBroadcaster::IsValid () const
{
return m_opaque_ptr != NULL;
}
bool
SBBroadcaster::operator == (const SBBroadcaster &rhs) const
{
return m_opaque_ptr == rhs.m_opaque_ptr;
}
bool
SBBroadcaster::operator != (const SBBroadcaster &rhs) const
{
return m_opaque_ptr != rhs.m_opaque_ptr;
}