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MCOL-4330 dev Refresh shared memory

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If the plugin is restarted after the system is running, it's possible to have stale references to shared memory. This patch deletes those references so the next time they're used, just-in-time initialization will get the latest.
This commit is contained in:
David Hall
2020-10-01 18:19:03 -05:00
parent 1f1ce5bf07
commit 951a6abe85
6 changed files with 46 additions and 11 deletions
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14
versioning/BRM/mastersegmenttable.h
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@ -64,14 +64,23 @@ struct MSTEntry
class MasterSegmentTableImpl
{
public:
~MasterSegmentTableImpl(){};
static MasterSegmentTableImpl* makeMasterSegmentTableImpl(int key, int size);
static void refreshShm()
{
if (fInstance)
{
delete fInstance;
fInstance = NULL;
}
}
boost::interprocess::shared_memory_object fShmobj;
boost::interprocess::mapped_region fMapreg;
private:
MasterSegmentTableImpl(int key, int size);
~MasterSegmentTableImpl();
MasterSegmentTableImpl(const MasterSegmentTableImpl& rhs);
MasterSegmentTableImpl& operator=(const MasterSegmentTableImpl& rhs);
@ -90,7 +99,6 @@ public:
* @note Throws runtime_error on a semaphore-related error.
*/
EXPORT MasterSegmentTable();
//MasterSegmentTable(const MasterSegmentTable& mst);
EXPORT ~MasterSegmentTable();
/// specifies the Extent Map table