Add SB API class SBWatchpointLocation and some extra methods to the SBTarget class to
iterate on the available watchpoint locations and to perform watchpoint manipulations.

I still need to export the SBWatchpointLocation class as well as the added watchpoint
manipulation methods to the Python interface.  And write test cases for them.


git-svn-id: https://llvm.org/svn/llvm-project/llvdb/trunk@140575 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/source/API/SBWatchpointLocation.cpp b/source/API/SBWatchpointLocation.cpp
new file mode 100644
index 0000000..b0e3eb8
--- /dev/null
+++ b/source/API/SBWatchpointLocation.cpp
@@ -0,0 +1,183 @@
+//===-- SBWatchpointLocation.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/API/SBWatchpointLocation.h"
+#include "lldb/API/SBDefines.h"
+#include "lldb/API/SBAddress.h"
+#include "lldb/API/SBDebugger.h"
+#include "lldb/API/SBStream.h"
+
+#include "lldb/lldb-types.h"
+#include "lldb/lldb-defines.h"
+#include "lldb/Breakpoint/WatchpointLocation.h"
+#include "lldb/Breakpoint/WatchpointLocationList.h"
+#include "lldb/Core/Log.h"
+#include "lldb/Core/Stream.h"
+#include "lldb/Core/StreamFile.h"
+#include "lldb/Target/Target.h"
+
+using namespace lldb;
+using namespace lldb_private;
+
+
+SBWatchpointLocation::SBWatchpointLocation () :
+    m_opaque_sp ()
+{
+}
+
+SBWatchpointLocation::SBWatchpointLocation (const lldb::WatchpointLocationSP &watch_loc_sp) :
+    m_opaque_sp (watch_loc_sp)
+{
+    LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
+
+    if (log)
+    {
+        SBStream sstr;
+        GetDescription (sstr, lldb::eDescriptionLevelBrief);
+        log->Printf ("SBWatchpointLocation::SBWatchpointLocation (const lldb::WatchpointLocationsSP &watch_loc_sp"
+                     "=%p)  => this.sp = %p (%s)", watch_loc_sp.get(), m_opaque_sp.get(), sstr.GetData());
+    }
+}
+
+SBWatchpointLocation::SBWatchpointLocation(const SBWatchpointLocation &rhs) :
+    m_opaque_sp (rhs.m_opaque_sp)
+{
+}
+
+const SBWatchpointLocation &
+SBWatchpointLocation::operator = (const SBWatchpointLocation &rhs)
+{
+    if (this != &rhs)
+        m_opaque_sp = rhs.m_opaque_sp;
+    return *this;
+}
+
+
+SBWatchpointLocation::~SBWatchpointLocation ()
+{
+}
+
+bool
+SBWatchpointLocation::IsValid() const
+{
+    return m_opaque_sp.get() != NULL;
+}
+
+addr_t
+SBWatchpointLocation::GetWatchAddress () const
+{
+    addr_t ret_addr = LLDB_INVALID_ADDRESS;
+
+    if (m_opaque_sp)
+    {
+        Mutex::Locker api_locker (m_opaque_sp->GetTarget().GetAPIMutex());
+        ret_addr = m_opaque_sp->GetLoadAddress();
+    }
+
+    return ret_addr;
+}
+
+size_t
+SBWatchpointLocation::GetWatchSize () const
+{
+    size_t watch_size = 0;
+
+    if (m_opaque_sp)
+    {
+        Mutex::Locker api_locker (m_opaque_sp->GetTarget().GetAPIMutex());
+        watch_size = m_opaque_sp->GetByteSize();
+    }
+
+    return watch_size;
+}
+
+void
+SBWatchpointLocation::SetEnabled (bool enabled)
+{
+    if (m_opaque_sp)
+    {
+        Mutex::Locker api_locker (m_opaque_sp->GetTarget().GetAPIMutex());
+        m_opaque_sp->SetEnabled (enabled);
+    }
+}
+
+bool
+SBWatchpointLocation::IsEnabled ()
+{
+    if (m_opaque_sp)
+    {
+        Mutex::Locker api_locker (m_opaque_sp->GetTarget().GetAPIMutex());
+        return m_opaque_sp->IsEnabled();
+    }
+    else
+        return false;
+}
+
+uint32_t
+SBWatchpointLocation::GetIgnoreCount ()
+{
+    if (m_opaque_sp)
+    {
+        Mutex::Locker api_locker (m_opaque_sp->GetTarget().GetAPIMutex());
+        return m_opaque_sp->GetIgnoreCount();
+    }
+    else
+        return 0;
+}
+
+void
+SBWatchpointLocation::SetIgnoreCount (uint32_t n)
+{
+    if (m_opaque_sp)
+    {
+        Mutex::Locker api_locker (m_opaque_sp->GetTarget().GetAPIMutex());
+        m_opaque_sp->SetIgnoreCount (n);
+    }
+}
+
+bool
+SBWatchpointLocation::GetDescription (SBStream &description, DescriptionLevel level)
+{
+    if (m_opaque_sp)
+    {
+        Mutex::Locker api_locker (m_opaque_sp->GetTarget().GetAPIMutex());
+        description.ref();
+        m_opaque_sp->GetDescription (description.get(), level);
+        description.get()->EOL();
+    }
+    else
+        description.Printf ("No value");
+
+    return true;
+}
+
+lldb_private::WatchpointLocation *
+SBWatchpointLocation::operator->() const
+{
+    return m_opaque_sp.get();
+}
+
+lldb_private::WatchpointLocation *
+SBWatchpointLocation::get() const
+{
+    return m_opaque_sp.get();
+}
+
+lldb::WatchpointLocationSP &
+SBWatchpointLocation::operator *()
+{
+    return m_opaque_sp;
+}
+
+const lldb::WatchpointLocationSP &
+SBWatchpointLocation::operator *() const
+{
+    return m_opaque_sp;
+}
+