db-postgresql/postgresql-api.lisp

   1 ;;;; -*- Mode: LISP; Syntax: ANSI-Common-Lisp; Base: 10 -*-
   2 ;;;; *************************************************************************
   3 ;;;; FILE IDENTIFICATION
   4 ;;;;
   5 ;;;; Name:          postgresql.cl
   6 ;;;; Purpose:       Low-level PostgreSQL interface using UFFI
   7 ;;;; Programmers:   Kevin M. Rosenberg based on
   8 ;;;;                Original code by Pierre R. Mai
   9 ;;;; Date Started:  Feb 2002
  10 ;;;;
  11 ;;;; $Id$
  12 ;;;;
  13 ;;;; This file, part of CLSQL, is Copyright (c) 2002 by Kevin M. Rosenberg
  14 ;;;; and Copyright (c) 1999-2001 by Pierre R. Mai
  15 ;;;;
  16 ;;;; CLSQL users are granted the rights to distribute and use this software
  17 ;;;; as governed by the terms of the Lisp Lesser GNU Public License
  18 ;;;; (http://opensource.franz.com/preamble.html), also known as the LLGPL.
  19 ;;;; *************************************************************************
  20
  21 (in-package #:postgresql)
  22
  23
  24 ;;;; This file implements as little of the FFI bindings to the
  25 ;;;; PostgreSQL client libraries as we could get away with.
  26 ;;;; Especially all the PostgreSQL-specific goodies aren't there, and
  27 ;;;; we just use void pointers where we can get away with it, which
  28 ;;;; thanks to the design of the PostgreSQL client libraries is pretty
  29 ;;;; much everywhere, in contrast to the MySQL client libraries for
  30 ;;;; example.
  31
  32 ;;;; Type definitions
  33
  34 ;;; Basic Types
  35
  36 (uffi:def-foreign-type pgsql-oid :unsigned-int)
  37
  38 (uffi:def-enum pgsql-conn-status-type
  39     (:connection-ok
  40      :connection-bad))
  41
  42 (uffi:def-enum pgsql-exec-status-type
  43     (:empty-query
  44      :command-ok
  45      :tuples-ok
  46      :copy-out
  47      :copy-in
  48      :bad-response
  49      :nonfatal-error
  50      :fatal-error))
  51
  52 (uffi:def-foreign-type pgsql-conn :pointer-void)
  53 (uffi:def-foreign-type pgsql-result :pointer-void)
  54
  55 (uffi:def-type pgsql-conn-ptr :pointer-void)
  56
  57 (uffi:def-enum pgsql-ftype
  58     ((:bytea 17)
  59      (:int2 21)
  60      (:int4 23)
  61      (:int8 20)
  62      (:float4 700)
  63      (:float8 701)))
  64
  65 ;;(declaim (inline PQsetdbLogin)) ;; causes compile error in LW 4.2.0
  66 (uffi:def-function ("PQsetdbLogin" PQsetdbLogin)
  67   ((pghost :cstring)
  68    (pgport :cstring)
  69    (pgoptions :cstring)
  70    (pgtty :cstring)
  71    (dbName :cstring)
  72    (login :cstring)
  73    (pwd :cstring))
  74   :module "postgresql"
  75   :returning pgsql-conn)
  76
  77 (declaim (inline PQfinish))
  78 (uffi:def-function ("PQfinish" PQfinish)
  79   ((conn pgsql-conn))
  80   :module "postgresql"
  81   :returning :void)
  82
  83 (declaim (inline PQstatus))
  84 (uffi:def-function ("PQstatus" PQstatus)
  85   ((conn pgsql-conn))
  86   :module "postgresql"
  87   :returning pgsql-conn-status-type)
  88
  89 (declaim (inline PQerrorMessage))
  90 (uffi:def-function ("PQerrorMessage" PQerrorMessage)
  91   ((conn pgsql-conn))
  92   :module "postgresql"
  93   :returning :cstring)
  94
  95 (declaim (inline PQexec))
  96 (uffi:def-function ("PQexec" PQexec)
  97   ((conn pgsql-conn)
  98    (query :cstring))
  99   :module "postgresql"
 100   :returning pgsql-result)
 101
 102 (declaim (inline PQresultStatus))
 103 (uffi:def-function ("PQresultStatus" PQresultStatus)
 104   ((res pgsql-result))
 105   :module "postgresql"
 106   :returning pgsql-exec-status-type)
 107
 108 (declaim (inline PQresultErrorMessage))
 109 (uffi:def-function ("PQresultErrorMessage" PQresultErrorMessage)
 110   ((res pgsql-result))
 111   :module "postgresql"
 112   :returning :cstring)
 113
 114 (declaim (inline PQntuples))
 115 (uffi:def-function ("PQntuples" PQntuples)
 116   ((res pgsql-result))
 117   :module "postgresql"
 118   :returning :int)
 119
 120 (declaim (inline PQnfields))
 121 (uffi:def-function ("PQnfields" PQnfields)
 122   ((res pgsql-result))
 123   :module "postgresql"
 124   :returning :int)
 125
 126 (declaim (inline PQfname))
 127 (uffi:def-function ("PQfname" PQfname)
 128   ((res pgsql-result)
 129    (field-num :int))
 130   :module "postgresql"
 131   :returning :cstring)
 132
 133 (declaim (inline PQfnumber))
 134 (uffi:def-function ("PQfnumber" PQfnumber)
 135   ((res pgsql-result)
 136   (field-name :cstring))
 137   :module "postgresql"
 138   :returning :int)
 139
 140 (declaim (inline PQftype))
 141 (uffi:def-function ("PQftype" PQftype)
 142   ((res pgsql-result)
 143    (field-num :int))
 144   :module "postgresql"
 145   :returning pgsql-oid)
 146
 147 (declaim (inline PQfsize))
 148 (uffi:def-function ("PQfsize" PQfsize)
 149   ((res pgsql-result)
 150    (field-num :int))
 151   :module "postgresql"
 152   :returning :short)
 153
 154 (declaim (inline PQcmdStatus))
 155 (uffi:def-function ("PQcmdStatus" PQcmdStatus)
 156   ((res pgsql-result))
 157   :module "postgresql"
 158   :returning :cstring)
 159
 160 (declaim (inline PQoidStatus))
 161 (uffi:def-function ("PQoidStatus" PQoidStatus)
 162   ((res pgsql-result))
 163   :module "postgresql"
 164   :returning :cstring)
 165
 166 (declaim (inline PQcmdTuples))
 167 (uffi:def-function ("PQcmdTuples" PQcmdTuples)
 168   ((res pgsql-result))
 169   :module "postgresql"
 170   :returning :cstring)
 171
 172 (declaim (inline PQgetvalue))
 173 (uffi:def-function ("PQgetvalue" PQgetvalue)
 174   ((res pgsql-result)
 175    (tup-num :int)
 176    (field-num :int))
 177   :module "postgresql"
 178   :returning (* :unsigned-char))
 179
 180 (declaim (inline PQgetlength))
 181 (uffi:def-function ("PQgetlength" PQgetlength)
 182   ((res pgsql-result)
 183    (tup-num :int)
 184    (field-num :int))
 185   :module "postgresql"
 186   :returning :int)
 187
 188 (declaim (inline PQgetisnull))
 189 (uffi:def-function ("PQgetisnull" PQgetisnull)
 190   ((res pgsql-result)
 191    (tup-num :int)
 192    (field-num :int))
 193   :module "postgresql"
 194   :returning :int)
 195
 196 (declaim (inline PQclear))
 197 (uffi:def-function ("PQclear" PQclear)
 198   ((res pgsql-result))
 199   :module "postgresql"
 200   :returning :void)
 201
 202 (declaim (inline PQisBusy))
 203 (uffi:def-function ("PQisBusy" PQisBusy)
 204   ((conn pgsql-conn))
 205   :module "postgresql"
 206   :returning :int)
 207
 208
 209 ;;; Large objects support (MB)
 210
 211 (defconstant +INV_ARCHIVE+ 65536)         ; fe-lobj.c
 212 (defconstant +INV_WRITE+   131072)
 213 (defconstant +INV_READ+    262144)
 214
 215 (declaim (inline lo-creat))
 216 (uffi:def-function ("lo_creat" lo-create)
 217   ((conn pgsql-conn)
 218    (mode :int))
 219   :module "postgresql"
 220   :returning pgsql-oid)
 221
 222 (declaim (inline lo-open))
 223 (uffi:def-function ("lo_open" lo-open)
 224   ((conn pgsql-conn)
 225    (oid pgsql-oid)
 226    (mode :int))
 227   :module "postgresql"
 228   :returning :int)
 229
 230 (declaim (inline lo-write))
 231 (uffi:def-function ("lo_write" lo-write)
 232   ((conn pgsql-conn)
 233    (fd :int)
 234    (data :cstring)
 235    (size :int))
 236   :module "postgresql"
 237   :returning :int)
 238
 239 (declaim (inline lo-read))
 240 (uffi:def-function ("lo_read" lo-read)
 241   ((conn pgsql-conn)
 242    (fd :int)
 243    (data (* :unsigned-char))
 244    (size :int))
 245   :module "postgresql"
 246   :returning :int)
 247
 248 (declaim (inline lo-lseek))
 249 (uffi:def-function ("lo_lseek" lo-lseek)
 250   ((conn pgsql-conn)
 251    (fd :int)
 252    (offset :int)
 253    (whence :int))
 254   :module "postgresql"
 255   :returning :int)
 256
 257 (declaim (inline lo-close))
 258 (uffi:def-function ("lo_close" lo-close)
 259   ((conn pgsql-conn)
 260    (fd :int))
 261   :module "postgresql"
 262   :returning :int)
 263
 264 (declaim (inline lo-unlink))
 265 (uffi:def-function ("lo_unlink" lo-unlink)
 266   ((conn pgsql-conn)
 267    (oid pgsql-oid))
 268   :module "postgresql"
 269   :returning :int)