((connection-spec :accessor connection-spec :initarg :connection-spec)
(database-type :accessor pool-database-type :initarg :pool-database-type)
(free-connections :accessor free-connections
- :initform (make-array 5 :fill-pointer 0 :adjustable t))
+ :initform (make-array 5 :fill-pointer 0 :adjustable t))
(all-connections :accessor all-connections
- :initform (make-array 5 :fill-pointer 0 :adjustable t))
+ :initform (make-array 5 :fill-pointer 0 :adjustable t))
(lock :accessor conn-pool-lock
- :initform (make-process-lock "Connection pool"))))
+ :initform (make-process-lock "Connection pool"))))
(defun acquire-from-conn-pool (pool)
(or (with-process-lock ((conn-pool-lock pool) "Acquire from pool")
- (when (plusp (length (free-connections pool)))
+ (when (plusp (length (free-connections pool)))
(let ((pconn (vector-pop (free-connections pool))))
;; test if connection still valid.
;; Currently, on supported on MySQL
(t
pconn)))))
(let ((conn (connect (connection-spec pool)
- :database-type (pool-database-type pool)
- :if-exists :new
+ :database-type (pool-database-type pool)
+ :if-exists :new
:make-default nil)))
- (with-process-lock ((conn-pool-lock pool) "Acquire from pool")
- (vector-push-extend conn (all-connections pool))
- (setf (conn-pool conn) pool))
- conn)))
+ (with-process-lock ((conn-pool-lock pool) "Acquire from pool")
+ (vector-push-extend conn (all-connections pool))
+ (setf (conn-pool conn) pool))
+ conn)))
(defun release-to-conn-pool (conn)
(let ((pool (conn-pool conn)))
(defun clear-conn-pool (pool)
(with-process-lock ((conn-pool-lock pool) "Clear pool")
(loop for conn across (all-connections pool)
- do (setf (conn-pool conn) nil)
- ;; disconnect may error if remote side closed connection
- (ignore-errors (disconnect :database conn)))
+ do (setf (conn-pool conn) nil)
+ ;; disconnect may error if remote side closed connection
+ (ignore-errors (disconnect :database conn)))
(setf (fill-pointer (free-connections pool)) 0)
(setf (fill-pointer (all-connections pool)) 0))
nil)
if not found"
(with-process-lock (*db-pool-lock* "Find-or-create connection")
(let* ((key (list connection-spec database-type))
- (conn-pool (gethash key *db-pool*)))
+ (conn-pool (gethash key *db-pool*)))
(unless conn-pool
- (setq conn-pool (make-instance 'conn-pool
- :connection-spec connection-spec
- :pool-database-type database-type))
- (setf (gethash key *db-pool*) conn-pool))
+ (setq conn-pool (make-instance 'conn-pool
+ :connection-spec connection-spec
+ :pool-database-type database-type))
+ (setf (gethash key *db-pool*) conn-pool))
conn-pool)))
(defun acquire-from-pool (connection-spec database-type &optional pool)
(with-process-lock (*db-pool-lock* "Disconnect pooled")
(maphash
#'(lambda (key conn-pool)
- (declare (ignore key))
- (clear-conn-pool conn-pool))
+ (declare (ignore key))
+ (clear-conn-pool conn-pool))
*db-pool*)
(when clear (clrhash *db-pool*)))
t)
; "Start all stream in the pool recording actions of TYPES"
; (dolist (con (pool-connections pool))
; (start-sql-recording :type types
-; :database (connection-database con))))
+; :database (connection-database con))))
;(defun pool-stop-sql-recording (pool &key (types :command))
; "Start all stream in the pool recording actions of TYPES"
; (dolist (con (pool-connections pool))
; (stop-sql-recording :type types
-; :database (connection-database con))))
+; :database (connection-database con))))
;(defmacro with-database-connection (pool &body body)
; `(let ((connection (obtain-connection ,pool))