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Viewing changes to plugin/user_locks/locks.h

  • Committer: Stewart Smith
  • Date: 2010-11-07 04:22:31 UTC
  • mto: (1911.1.2 build)
  • mto: This revision was merged to the branch mainline in revision 1912.
  • Revision ID: stewart@flamingspork.com-20101107042231-ola4sl7j0qvg58tz
https://launchpad.net/bugs/668880
fix ARCHIVE storage engine calling exit (lintian warning). Was because we were linking in libinternal into libazio, which links into archive plugin. Just link libinternal into the command line utilities.

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plugin/user_locks/locks.h
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#include <boost/thread/mutex.hpp>
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#include <boost/thread/condition_variable.hpp>
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#include <boost/unordered_map.hpp>
 
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#include <boost/logic/tribool.hpp>
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#include <boost/unordered/unordered_set.hpp>
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#include <plugin/user_locks/lock.h>
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#include <string>
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#include <drizzled/session.h>
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#include <drizzled/util/string.h>
 
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#include "drizzled/session.h"
 
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#include "drizzled/util/string.h"
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#ifndef PLUGIN_USER_LOCKS_LOCKS_H
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namespace user_locks {
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namespace locks {
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  enum return_t {
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    SUCCESS,
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    NOT_FOUND,
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    NOT_OWNED_BY
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  };
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} /* locks user_locks */
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const size_t LARGEST_LOCK_NAME= 64;
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class Locks
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{
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public:
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  typedef boost::unordered_map<user_locks::Key, user_locks::Lock::shared_ptr> LockMap;
 
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  struct lock_st {
 
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    drizzled::session_id_t id;
 
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    lock_st(drizzled::session_id_t id_arg) :
 
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      id(id_arg)
 
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    {
 
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    }
 
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  };
 
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  typedef boost::shared_ptr<lock_st> lock_st_ptr;
 
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  typedef boost::unordered_map<user_locks::Key, lock_st_ptr> LockMap;
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  static Locks &getInstance(void)
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  {
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    return instance;
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  }
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  void waitCreate(int64_t wait_for= 2); // Default is to wait 2 seconds before returning
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  bool lock(drizzled::session_id_t id_arg, const user_locks::Key &arg);
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  bool lock(drizzled::session_id_t id_arg, const user_locks::Key &arg, int64_t wait_for= 0);
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  bool lock(drizzled::session_id_t id_arg, const user_locks::Keys &arg);
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  locks::return_t release(const user_locks::Key &arg, drizzled::session_id_t &id_arg, bool and_wait= false);
 
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  boost::tribool release(const user_locks::Key &arg, drizzled::session_id_t &id_arg);
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  bool isFree(const user_locks::Key &arg);
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  bool isUsed(const user_locks::Key &arg, drizzled::session_id_t &id_arg);
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  void Copy(LockMap &lock_map);
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private:
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  boost::mutex mutex;
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  boost::condition_variable create_cond; // Signal next 
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  boost::condition_variable release_cond;
 
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  boost::condition_variable cond;
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  LockMap lock_map; 
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};
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