llvm-project/lldb/source/API/SBBroadcaster.cpp
Greg Clayton 5160ce5c72 <rdar://problem/13521159>
LLDB is crashing when logging is enabled from lldb-perf-clang. This has to do with the global destructor chain as the process and its threads are being torn down.

All logging channels now make one and only one instance that is kept in a global pointer which is never freed. This guarantees that logging can correctly continue as the process tears itself down.

llvm-svn: 178191
2013-03-27 23:08:40 +00:00

197 lines
4.7 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/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 (NULL, name)),
m_opaque_ptr (NULL)
{
m_opaque_ptr = m_opaque_sp.get();
Log *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)
{
Log *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)
{
Log *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)
{
Log *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)
{
Log *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;
}
void
SBBroadcaster::Clear ()
{
m_opaque_sp.reset();
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;
}
bool
SBBroadcaster::operator < (const SBBroadcaster &rhs) const
{
return m_opaque_ptr < rhs.m_opaque_ptr;
}