forked from OSchip/llvm-project
194357c509
Summary: MonitorDebugServerProcess went to a lot of effort to make sure its asynchronous invocation does not cause any mischief, but it was still not race-free. Specifically, in a quick stop-restart sequence (like the one in TestAddressBreakpoints) the copying of the process shared pointer via target_sp->GetProcessSP() was racing with the resetting of the pointer in DeleteCurrentProcess, as they were both accessing the same shared_ptr object. To avoid this, I simply pass in a weak_ptr to the process when the callback is created. Locking this pointer is race-free as they are two separate object even though they point to the same process instance. This also removes the need for the complicated tap-dance around retrieving the process pointer. Reviewers: clayborg Subscribers: tberghammer, lldb-commits Differential Revision: http://reviews.llvm.org/D20107 llvm-svn: 269281 |
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