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use named mtx's and condition for interprocess communication

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This commit is contained in:
Dennis Luxen 2013-10-22 13:26:39 +02:00
parent 9fe1680c56
commit 49a8980dea
1 changed files with 27 additions and 7 deletions
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34
Server/DataStructures/SharedBarriers.h
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@ -1,17 +1,37 @@
#include <boost/interprocess/sync/interprocess_mutex.hpp>
#include <boost/interprocess/sync/interprocess_condition.hpp>
#include <boost/interprocess/sync/named_mutex.hpp>
#include <boost/interprocess/sync/named_condition.hpp>
struct SharedBarriers {
SharedBarriers () : update_ongoing(false), number_of_queries(0) { }
SharedBarriers ()
:
pending_update_mutex(
boost::interprocess::open_or_create,
"pending_update"
),
update_mutex(
boost::interprocess::open_or_create,
"update"
),
query_mutex(
boost::interprocess::open_or_create,
"query"
),
no_running_queries_condition(
boost::interprocess::open_or_create,
"no_running_queries"
),
update_ongoing(false),
number_of_queries(0)
{ }
// Mutex to protect access to the boolean variable
boost::interprocess::interprocess_mutex pending_update_mutex;
boost::interprocess::interprocess_mutex update_mutex;
boost::interprocess::interprocess_mutex query_mutex;
boost::interprocess::named_mutex pending_update_mutex;
boost::interprocess::named_mutex update_mutex;
boost::interprocess::named_mutex query_mutex;
// Condition that no update is running
boost::interprocess::interprocess_condition no_running_queries_condition;
boost::interprocess::named_condition no_running_queries_condition;
// Is there an ongoing update?
bool update_ongoing;