Provide a mechanism for SymbolSuppliers to interrupt processing (#93)

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@80 4c0a9323-5329-0410-9bdc-e9ce6186880e

src/processor/process_state.cc

@@ -40,13 +40,27 @@
 namespace google_airbag {
 
 ProcessState::~ProcessState() {
+  Clear();
+}
+
+void ProcessState::Clear() {
+  time_date_stamp_ = 0;
+  crashed_ = false;
+  crash_reason_.clear();
+  crash_address_ = 0;
+  requesting_thread_ = -1;
   for (vector<CallStack *>::const_iterator iterator = threads_.begin();
        iterator != threads_.end();
        ++iterator) {
     delete *iterator;
   }
-
+  threads_.clear();
+  os_.clear();
+  os_version_.clear();
+  cpu_.clear();
+  cpu_info_.clear();
   delete modules_;
+  modules_ = NULL;
 }
 
 }  // namespace google_airbag