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<rdar://problem/10487848> 

Protect a member variable from being modified by multiple threads.

llvm-svn: 145920
This commit is contained in:
Greg Clayton 2011-12-06 04:51:14 +00:00
parent 175c7d0da5
commit 09c3e3d7f5
2 changed files with 11 additions and 3 deletions
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7
lldb/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
View File

@ -123,6 +123,7 @@ ProcessGDBRemote::ProcessGDBRemote(Target& target, Listener &listener) :
m_gdb_comm(false),
m_debugserver_pid (LLDB_INVALID_PROCESS_ID),
m_last_stop_packet (),
m_last_stop_packet_mutex (Mutex::eMutexTypeNormal),
m_register_info (),
m_async_broadcaster ("lldb.process.gdb-remote.async-broadcaster"),
m_async_thread (LLDB_INVALID_HOST_THREAD),
@ -1548,7 +1549,7 @@ ProcessGDBRemote::DoDestroy ()
if (packet_cmd == 'W' || packet_cmd == 'X')
{
m_last_stop_packet = response;
SetLastStopPacket (response);
SetExitStatus(response.GetHexU8(), NULL);
}
}
@ -2353,12 +2354,12 @@ ProcessGDBRemote::AsyncThread (void *arg)
case eStateStopped:
case eStateCrashed:
case eStateSuspended:
process->m_last_stop_packet = response;
process->SetLastStopPacket (response);
process->SetPrivateState (stop_state);
break;
case eStateExited:
process->m_last_stop_packet = response;
process->SetLastStopPacket (response);
response.SetFilePos(1);
process->SetExitStatus(response.GetHexU8(), NULL);
done = true;

7
lldb/source/Plugins/Process/gdb-remote/ProcessGDBRemote.h
View File

@ -271,6 +271,12 @@ protected:
return m_gdb_comm;
}
void
SetLastStopPacket (const StringExtractorGDBRemote &response)
{
lldb_private::Mutex::Locker locker (m_last_stop_packet_mutex);
m_last_stop_packet = response;
}
//------------------------------------------------------------------
/// Broadcaster event bits definitions.
//------------------------------------------------------------------
@ -284,6 +290,7 @@ protected:
GDBRemoteCommunicationClient m_gdb_comm;
lldb::pid_t m_debugserver_pid;
StringExtractorGDBRemote m_last_stop_packet;
lldb_private::Mutex m_last_stop_packet_mutex;
GDBRemoteDynamicRegisterInfo m_register_info;
lldb_private::Broadcaster m_async_broadcaster;
lldb::thread_t m_async_thread;