cl-postgres-socket3 backend using cl-postgres (backing of postmodern)

[clsql.git] / db-postgresql-socket3 / api.lisp

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+;;;; -*- Mode: LISP; Syntax: ANSI-Common-Lisp; Base: 10 -*-
+;;;; *************************************************************************
+;;;; FILE IDENTIFICATION
+;;;;
+;;;; Name:     postgresql-socket-api.lisp
+;;;; Purpose:  Low-level PostgreSQL interface using sockets
+;;;; Authors:  Kevin M. Rosenberg based on original code by Pierre R. Mai
+;;;; Created:  Feb 2002
+;;;;
+;;;; $Id$
+;;;;
+;;;; This file, part of CLSQL, is Copyright (c) 2002-2004 by Kevin M. Rosenberg
+;;;; and Copyright (c) 1999-2001 by Pierre R. Mai
+;;;;
+;;;; CLSQL users are granted the rights to distribute and use this software
+;;;; as governed by the terms of the Lisp Lesser GNU Public License
+;;;; (http://opensource.franz.com/preamble.html), also known as the LLGPL.
+;;;; *************************************************************************
+
+(in-package #:postgresql-socket3)
+
+(defmethod clsql-sys:database-type-load-foreign ((database-type (eql :postgresql-socket3)))
+  t)
+
+(defmethod clsql-sys:database-type-library-loaded ((database-type
+                                          (eql :postgresql-socket3)))
+  "T if foreign library was able to be loaded successfully. Always true for
+socket interface"
+  t)
+
+(defparameter +postgresql-server-default-port+ 5432
+  "Default port of PostgreSQL server.")
+
+;;;; Condition hierarchy
+
+(define-condition postgresql-condition (condition)
+  ((connection :initarg :connection :reader postgresql-condition-connection)
+   (message :initarg :message :reader postgresql-condition-message))
+  (:report
+   (lambda (c stream)
+     (format stream "~@<~A occurred on connection ~A. ~:@_Reason: ~A~:@>"
+             (type-of c)
+             (postgresql-condition-connection c)
+             (postgresql-condition-message c)))))
+
+(define-condition postgresql-error (error postgresql-condition)
+  ())
+
+(define-condition postgresql-fatal-error (postgresql-error)
+  ())
+
+(define-condition postgresql-login-error (postgresql-fatal-error)
+  ())
+
+(define-condition postgresql-warning (warning postgresql-condition)
+  ())
+
+(define-condition postgresql-notification (postgresql-condition)
+  ()
+  (:report
+   (lambda (c stream)
+     (format stream "~@<Asynchronous notification on connection ~A: ~:@_~A~:@>"
+             (postgresql-condition-connection c)
+             (postgresql-condition-message c)))))
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