Initial import of lldb

Change-Id: Ib244e837bee349effa12b2ff6ffffbe3d730e929

external/bsd/llvm/dist/lldb/source/API/SBEvent.cpp

@@ -0,0 +1,245 @@
+//===-- SBEvent.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/lldb-python.h"
+
+#include "lldb/API/SBEvent.h"
+#include "lldb/API/SBBroadcaster.h"
+#include "lldb/API/SBStream.h"
+
+#include "lldb/Core/Event.h"
+#include "lldb/Core/Stream.h"
+#include "lldb/Core/StreamFile.h"
+#include "lldb/Core/ConstString.h"
+#include "lldb/Target/Process.h"
+#include "lldb/Breakpoint/Breakpoint.h"
+#include "lldb/Interpreter/CommandInterpreter.h"
+
+using namespace lldb;
+using namespace lldb_private;
+
+
+SBEvent::SBEvent () :
+    m_event_sp (),
+    m_opaque_ptr (NULL)
+{
+}
+
+SBEvent::SBEvent (uint32_t event_type, const char *cstr, uint32_t cstr_len) :
+    m_event_sp (new Event (event_type, new EventDataBytes (cstr, cstr_len))),
+    m_opaque_ptr (m_event_sp.get())
+{
+}
+
+SBEvent::SBEvent (EventSP &event_sp) :
+    m_event_sp (event_sp),
+    m_opaque_ptr (event_sp.get())
+{
+}
+
+SBEvent::SBEvent (const SBEvent &rhs) :
+    m_event_sp (rhs.m_event_sp),
+    m_opaque_ptr (rhs.m_opaque_ptr)
+{
+    
+}
+    
+const SBEvent &
+SBEvent::operator = (const SBEvent &rhs)
+{
+    if (this != &rhs)
+    {
+        m_event_sp = rhs.m_event_sp;
+        m_opaque_ptr = rhs.m_opaque_ptr;
+    }
+    return *this;
+}
+
+SBEvent::~SBEvent()
+{
+}
+
+const char *
+SBEvent::GetDataFlavor ()
+{
+    Event *lldb_event = get();
+    if (lldb_event)
+    {
+        EventData *event_data = lldb_event->GetData();
+        if (event_data)
+            return lldb_event->GetData()->GetFlavor().AsCString();
+    }
+    return NULL;
+}
+
+uint32_t
+SBEvent::GetType () const
+{
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
+
+    const Event *lldb_event = get();
+    uint32_t event_type = 0;
+    if (lldb_event)
+        event_type = lldb_event->GetType();
+
+    if (log)
+    {
+        StreamString sstr;
+        if (lldb_event && lldb_event->GetBroadcaster() && lldb_event->GetBroadcaster()->GetEventNames(sstr, event_type, true))
+            log->Printf ("SBEvent(%p)::GetType () => 0x%8.8x (%s)", get(), event_type, sstr.GetData());
+        else
+            log->Printf ("SBEvent(%p)::GetType () => 0x%8.8x", get(), event_type);
+
+    }
+
+    return event_type;
+}
+
+SBBroadcaster
+SBEvent::GetBroadcaster () const
+{
+    SBBroadcaster broadcaster;
+    const Event *lldb_event = get();
+    if (lldb_event)
+        broadcaster.reset (lldb_event->GetBroadcaster(), false);
+    return broadcaster;
+}
+
+const char *
+SBEvent::GetBroadcasterClass () const
+{
+    const Event *lldb_event = get();
+    if (lldb_event)
+        return lldb_event->GetBroadcaster()->GetBroadcasterClass().AsCString();
+    else
+        return "unknown class";
+}
+
+bool
+SBEvent::BroadcasterMatchesPtr (const SBBroadcaster *broadcaster)
+{
+    if (broadcaster)
+        return BroadcasterMatchesRef (*broadcaster);
+    return false;
+}
+
+bool
+SBEvent::BroadcasterMatchesRef (const SBBroadcaster &broadcaster)
+{
+
+    Event *lldb_event = get();
+    bool success = false;
+    if (lldb_event)
+        success = lldb_event->BroadcasterIs (broadcaster.get());
+
+    // For logging, this gets a little chatty so only enable this when verbose logging is on
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API | LIBLLDB_LOG_VERBOSE));
+    if (log)
+        log->Printf ("SBEvent(%p)::BroadcasterMatchesRef (SBBroadcaster(%p): %s) => %i", 
+                     get(),
+                     broadcaster.get(),
+                     broadcaster.GetName(),
+                     success);
+
+    return success;
+}
+
+void
+SBEvent::Clear()
+{
+    Event *lldb_event = get();
+    if (lldb_event)
+        lldb_event->Clear();
+}
+
+EventSP &
+SBEvent::GetSP () const
+{
+    return m_event_sp;
+}
+
+Event *
+SBEvent::get() const
+{
+    // There is a dangerous accessor call GetSharedPtr which can be used, so if
+    // we have anything valid in m_event_sp, we must use that since if it gets
+    // used by a function that puts something in there, then it won't update
+    // m_opaque_ptr...
+    if (m_event_sp)
+        m_opaque_ptr = m_event_sp.get();
+
+    return m_opaque_ptr;
+}
+
+void
+SBEvent::reset (EventSP &event_sp)
+{
+    m_event_sp = event_sp;
+    m_opaque_ptr = m_event_sp.get();
+}
+
+void
+SBEvent::reset (Event* event_ptr)
+{
+    m_opaque_ptr = event_ptr;
+    m_event_sp.reset();
+}
+
+bool
+SBEvent::IsValid() const
+{
+    // Do NOT use m_opaque_ptr directly!!! Must use the SBEvent::get()
+    // accessor. See comments in SBEvent::get()....
+    return SBEvent::get() != NULL;
+
+}
+
+const char *
+SBEvent::GetCStringFromEvent (const SBEvent &event)
+{
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
+
+    if (log)
+        log->Printf ("SBEvent(%p)::GetCStringFromEvent () => \"%s\"", 
+                     event.get(), 
+                     reinterpret_cast<const char *>(EventDataBytes::GetBytesFromEvent (event.get())));
+
+    return reinterpret_cast<const char *>(EventDataBytes::GetBytesFromEvent (event.get()));
+}
+
+
+bool
+SBEvent::GetDescription (SBStream &description)
+{
+    Stream &strm = description.ref();
+
+    if (get())
+    {
+        m_opaque_ptr->Dump (&strm);
+    }
+    else
+        strm.PutCString ("No value");
+
+    return true;
+}
+
+bool
+SBEvent::GetDescription (SBStream &description) const
+{
+    Stream &strm = description.ref();
+
+    if (get())
+    {
+        m_opaque_ptr->Dump (&strm);
+    }
+    else
+        strm.PutCString ("No value");
+
+    return true;
+}