BIND 10 trac957, updated. 1ff545f50926224d095e3809636c642219ea9078 [trac957] Added new ChangeLog entry

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The branch, trac957 has been updated
  discards  879663a28bd59692b3745f9e1851412a73872460 (commit)
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       via  1ff545f50926224d095e3809636c642219ea9078 (commit)
       via  e47b0a39b7849489e6d9a167117ebb3be5eea4d4 (commit)
       via  3e1fae0b23d4df32f239e5aa1350e40557d8ada4 (commit)

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- Log -----------------------------------------------------------------
commit 1ff545f50926224d095e3809636c642219ea9078
Author: Yoshitaka Aharen <aharen at jprs.co.jp>
Date:   Mon May 23 17:37:49 2011 +0900

    [trac957] Added new ChangeLog entry

commit e47b0a39b7849489e6d9a167117ebb3be5eea4d4
Author: Yoshitaka Aharen <aharen at jprs.co.jp>
Date:   Mon May 23 16:29:04 2011 +0900

    [trac957] Fixed the bug that destructIntervalTimer segfaults.
    
      - pass boost::shared_ptr of IntervalTimerImpl wrapped with boost::bind
        as a handler of asio::deadline_timer
      - use boost::shared_ptr to hold pImpl

commit 3e1fae0b23d4df32f239e5aa1350e40557d8ada4
Author: Yoshitaka Aharen <aharen at jprs.co.jp>
Date:   Fri Jun 10 15:05:10 2011 +0900

    [trac957] Add assertion check to detect use-after-free type of bugs

-----------------------------------------------------------------------

Summary of changes:
 src/lib/asiolink/interval_timer.cc |    9 +++++++--
 1 files changed, 7 insertions(+), 2 deletions(-)

-----------------------------------------------------------------------
diff --git a/src/lib/asiolink/interval_timer.cc b/src/lib/asiolink/interval_timer.cc
index 2830a3b..502bf80 100644
--- a/src/lib/asiolink/interval_timer.cc
+++ b/src/lib/asiolink/interval_timer.cc
@@ -59,14 +59,18 @@ private:
     long interval_;
     // asio timer
     asio::deadline_timer timer_;
+    // interval_ will be set to this value in destructor in order to detect
+    // use-after-free type of bugs.
+    static const long INVALIDATED_INTERVAL = -1;
 };
 
 IntervalTimerImpl::IntervalTimerImpl(IOService& io_service) :
     interval_(0), timer_(io_service.get_io_service())
 {}
 
-IntervalTimerImpl::~IntervalTimerImpl()
-{}
+IntervalTimerImpl::~IntervalTimerImpl() {
+    interval_ = INVALIDATED_INTERVAL;
+}
 
 void
 IntervalTimerImpl::setup(const IntervalTimer::Callback& cbfunc,
@@ -107,6 +111,7 @@ IntervalTimerImpl::update() {
 
 void
 IntervalTimerImpl::callback(const asio::error_code& ec) {
+    assert(interval_ != INVALIDATED_INTERVAL);
     if (interval_ == 0 || ec) {
         // timer has been canceled. Do nothing.
     } else {