From: Matt Birkholz Date: Sun, 2 Jul 2017 20:20:56 +0000 (-0700) Subject: pgsql plugin: New, from the pgsql microcode module. X-Git-Tag: mit-scheme-pucked-9.2.12~14^2~37 X-Git-Url: https://birchwood-abbey.net/git?a=commitdiff_plain;h=8c4a14530ba6f3f3bec5b8246242eaf03e01c183;p=mit-scheme.git pgsql plugin: New, from the pgsql microcode module. --- diff --git a/src/pgsql/AUTHORS b/src/pgsql/AUTHORS new file mode 100644 index 000000000..94b85a468 --- /dev/null +++ b/src/pgsql/AUTHORS @@ -0,0 +1,6 @@ +To find out what should go in this file, see "Information For +Maintainers of GNU Software" (maintain.texi), the section called +"Recording Changes". + +Matt Birkholz The conversion to a plugin. +The MIT/GNU Scheme Team The original (runtime postgresql) package. diff --git a/src/pgsql/COPYING b/src/pgsql/COPYING new file mode 100644 index 000000000..bf50f20de --- /dev/null +++ b/src/pgsql/COPYING @@ -0,0 +1,482 @@ + GNU LIBRARY GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1991 Free Software Foundation, Inc. + 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + +[This is the first released version of the library GPL. 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See the GNU +## General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with MIT/GNU Scheme; if not, write to the Free Software +## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, +## USA. + +ACLOCAL_AMFLAGS = -I m4 +EXTRA_DIST = autogen.sh + +MIT_SCHEME_EXE = @MIT_SCHEME_EXE@ +scmlibdir = @MIT_SCHEME_LIBDIR@ +scmlib_subdir = $(scmlibdir)pgsql +scmdocdir = $(datarootdir)/doc/@MIT_SCHEME_PROJECT@ +#scminfodir = $(scmdocdir)/info + +scmlib_LTLIBRARIES = pgsql-shim.la +scmlib_DATA = pgsql-types.bin pgsql-const.bin + +sources = @MIT_SCHEME_SCMs@ +cdecls = pgsql.cdecl + +binaries = @MIT_SCHEME_BCIs@ @MIT_SCHEME_COMs@ + +scmlib_sub_DATA = $(sources) $(binaries) +scmlib_sub_DATA += make.scm @MIT_SCHEME_PKD@ + +#scminfo_DATA = pgsql.info +#AM_MAKEINFOHTMLFLAGS = --no-split + +AM_CPPFLAGS = -I@MIT_SCHEME_INCLUDEDIR@ +AM_CFLAGS = @MIT_CFLAGS@ `pkg-config --cflags libpq` +LIBS = `pkg-config --libs libpq` + +pgsql_shim_la_LDFLAGS = -module -avoid-version -shared + +noinst_PROGRAMS = pgsql-const +pgsql_const_SOURCES = pgsql-const.c pgsql-shim.h + +pgsql-shim.c: stamp-shim +pgsql-const.c: stamp-shim +pgsql-types.bin: stamp-shim +stamp-shim: pgsql-shim.h $(cdecls) + touch stamp-shim + echo '(generate-shim "pgsql" "#include \"pgsql-shim.h\"")' \ + | $(MIT_SCHEME_EXE) --batch-mode \ + || rm stamp-shim + +pgsql-const.bin: pgsql-const.scm + echo '(sf "pgsql-const")' | $(MIT_SCHEME_EXE) --batch-mode + +pgsql-const.scm: pgsql-const + ./pgsql-const + +@MIT_SCHEME_DEPS@ +stamp-scheme: stamp-shim $(sources) pgsql.pkg + touch stamp-scheme + if ! echo '(load "compile.scm")' \ + | $(MIT_SCHEME_EXE) --prepend-library . --batch-mode; then \ + rm stamp-scheme; exit 1; fi + +CLEANFILES = pgsql-const* pgsql-shim.c +CLEANFILES += *.bin *.ext *.com *.bci *.moc *.fni *.crf *.fre *.pkd +CLEANFILES += stamp-shim stamp-scheme +CLEANFILES += @MIT_SCHEME_CLEAN@ + +TESTS = pgsql-check.sh +CLEANFILES += pgsql-check.db + +tags: tags-am + ./tags-fix.sh pgsql + +all_sources = $(sources) +ETAGS_ARGS = $(all_sources) -r '/^([^iI].*/' $(cdecls) +TAGS_DEPENDENCIES = $(all_sources) $(cdecls) + +EXTRA_DIST += $(all_sources) $(cdecls) compile.scm pgsql.pkg +EXTRA_DIST += pgsql-check.scm pgsql-check.sh +EXTRA_DIST += make.scm optiondb.scm tags-fix.sh debian + +install-data-hook: + ( echo '(add-plugin "pgsql" "@MIT_SCHEME_PROJECT@"'; \ + echo ' ""'; \ + echo ' "$(DESTDIR)$(scmlibdir)"'; \ + echo ' "$(DESTDIR)$(scmdocdir)")' ) \ + | $(MIT_SCHEME_EXE) --batch-mode + +install-html: install-html-am + ( echo '(add-plugin "pgsql" "@MIT_SCHEME_PROJECT@"'; \ + echo ' ""'; \ + echo ' "$(DESTDIR)$(scmlibdir)"'; \ + echo ' "$(DESTDIR)$(scmdocdir)")' ) \ + | $(MIT_SCHEME_EXE) --batch-mode + +install-info-am: + +uninstall-info-am: + +uninstall-hook: + ( echo '(remove-plugin "pgsql" "@MIT_SCHEME_PROJECT@"'; \ + echo ' ""'; \ + echo ' "$(DESTDIR)$(scmlibdir)"'; \ + echo ' "$(DESTDIR)$(scmdocdir)")' ) \ + | $(MIT_SCHEME_EXE) --batch-mode + [ -d "$(DESTDIR)$(scmlib_subdir)" ] \ + && rmdir "$(DESTDIR)$(scmlib_subdir)" diff --git a/src/pgsql/NEWS b/src/pgsql/NEWS new file mode 100644 index 000000000..123fa8c94 --- /dev/null +++ b/src/pgsql/NEWS @@ -0,0 +1,28 @@ +mit-scheme-pgsql NEWS -- history of user-visible changes. + +Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, + 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, + 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, + 2017 Massachusetts Institute of Technology + +This file is part of MIT/GNU Scheme. + +MIT/GNU Scheme is free software; you can redistribute it and/or +modify it under the terms of the GNU General Public License as +published by the Free Software Foundation; either version 2 of the +License, or (at your option) any later version. + +MIT/GNU Scheme is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with MIT/GNU Scheme; if not, write to the Free Software +Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA +02110-1301, USA. + +mit-scheme-pgsql 0.1 - Matt Birkholz, 2017-07-02 +================================================ + +Now a plugin using libtool and automake. diff --git a/src/pgsql/README b/src/pgsql/README new file mode 100644 index 000000000..53471fd7c --- /dev/null +++ b/src/pgsql/README @@ -0,0 +1,28 @@ +The POSTGRES option. + +This plugin creates a (pgsql) package, a drop-in replacement for the +microcode module based (runtime postgresql) package. It is built in the +customary GNU way: + + ./configure ... + make all check install + +To use: + + (load-option 'pgsql) + (import-pgsql) + +Import-pgsql will modify the REPL's current environment by adding +bindings linked to the plugin's exports. They are not exported to the +global environment because they would conflict with the exports from +(runtime postgresql). + +To import into a CREF package set, add this to your .pkg file: + + (global-definitions pgsql/) + + (define-package (your package name) + (parent (your package parent)) + (import (pgsql) + call-with-pgsql-conn + ...)) diff --git a/src/pgsql/autogen.sh b/src/pgsql/autogen.sh new file mode 100755 index 000000000..8af4031c7 --- /dev/null +++ b/src/pgsql/autogen.sh @@ -0,0 +1,6 @@ +#!/bin/sh + +set -e +rm -rf m4 +mkdir m4 +autoreconf --force --install -I m4 diff --git a/src/pgsql/compile.scm b/src/pgsql/compile.scm new file mode 100644 index 000000000..f4be94acd --- /dev/null +++ b/src/pgsql/compile.scm @@ -0,0 +1,8 @@ +#| -*-Scheme-*- |# + +;;;; Compile the PGSQL option. + +(load-option 'CREF) +(load-option 'FFI) +(compile-file "pgsql" '() (->environment '())) +(cref/generate-constructors "pgsql") \ No newline at end of file diff --git a/src/pgsql/configure.ac b/src/pgsql/configure.ac new file mode 100644 index 000000000..fdc72ae17 --- /dev/null +++ b/src/pgsql/configure.ac @@ -0,0 +1,161 @@ +dnl Process this file with autoconf to produce a configure script. + +AC_PREREQ([2.69]) +AC_INIT([MIT/GNU Scheme pgsql plugin], + [0.1], + [bug-mit-scheme@gnu.org], + [mit-scheme-pgsql]) +AC_CONFIG_SRCDIR([pgsql.pkg]) +AC_CONFIG_HEADERS([config.h]) +AC_CONFIG_MACRO_DIR([m4]) + +AC_COPYRIGHT( +[Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, + 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, + 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, + 2017 Massachusetts Institute of Technology + +This file is part of MIT/GNU Scheme. + +MIT/GNU Scheme is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or (at +your option) any later version. + +MIT/GNU Scheme is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with MIT/GNU Scheme; if not, write to the Free Software +Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, +USA. +]) + +AH_TOP([/* + +Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, + 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, + 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, + 2017 Massachusetts Institute of Technology + +This file is part of MIT/GNU Scheme. + +MIT/GNU Scheme is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or (at +your option) any later version. + +MIT/GNU Scheme is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with MIT/GNU Scheme; if not, write to the Free Software +Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, +USA. + +*/]) + +AM_INIT_AUTOMAKE + +LT_PREREQ([2.2.6]) +LT_INIT([dlopen]) + +AC_PROG_CC +AC_PROG_CPP +AC_PROG_INSTALL + +if test ${GCC} = yes; then + + MIT_CFLAGS="-Wall -Wundef -Wpointer-arith -Winline" + MIT_CFLAGS="${MIT_CFLAGS} -Wstrict-prototypes -Wnested-externs" + MIT_CFLAGS="${MIT_CFLAGS} -Wredundant-decls" + + AC_MSG_CHECKING([for GCC>=4]) + AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[ + #if __GNUC__ >= 4 + ; + #else + #error "gcc too old" + #endif + ]], + [[]] + )], + [ + AC_MSG_RESULT([yes]) + MIT_CFLAGS="${MIT_CFLAGS} -Wextra -Wno-sign-compare" + MIT_CFLAGS="${MIT_CFLAGS} -Wno-unused-parameter" + MIT_CFLAGS="${MIT_CFLAGS} -Wold-style-definition" + # The generated shim code violates this big-time. + # MIT_CFLAGS="${MIT_CFLAGS} -Wmissing-prototypes" + MIT_CFLAGS="${MIT_CFLAGS} -Wunreachable-code" + MIT_CFLAGS="${MIT_CFLAGS} -Wwrite-strings" + ], + [AC_MSG_RESULT([no])]) +fi + +AC_CHECK_PROG([PKG_CONFIG], [pkg-config], [yes]) + +if ! pkg-config --exists libpq 2>/dev/null; then + AC_MSG_ERROR([PostgreSQL not found.]) +fi + +AC_DEFINE([HAVE_LIBPQ_FE_H], [1], + [Define to 1 if you have the header file.]) + +MIT_SCHEME_PROJECT=mit-scheme +: ${MIT_SCHEME_EXE=mit-scheme} +MIT_SCHEME_LIBDIR=`( echo "(display (->namestring" ;\ + echo " (system-library-directory-pathname)))" ) \ + | ${MIT_SCHEME_EXE} --batch-mode` +MIT_SCHEME_INCLUDEDIR=`( echo "(display (->namestring" ;\ + echo " (directory-pathname" ;\ + echo " (system-library-pathname" ;\ + echo ' "mit-scheme.h"))))' ) \ + | ${MIT_SCHEME_EXE} --batch-mode` + +cc_type=`echo "(display microcode-id/compiled-code-type)" \ + | ${MIT_SCHEME_EXE} --batch-mode` +os_suffix=`echo "(display (microcode-id/operating-system-suffix))" \ + | ${MIT_SCHEME_EXE} --batch-mode` + +MIT_SCHEME_PKD="pgsql-${os_suffix}.pkd" + +for f in pgsql; do + MIT_SCHEME_SCMs="${MIT_SCHEME_SCMs} ${f}.scm" + MIT_SCHEME_BCIs="${MIT_SCHEME_BCIs} ${f}.bci" + MIT_SCHEME_DEPS="${MIT_SCHEME_DEPS} +${f}.bci: stamp-scheme" + if test "$cc_type" = "c"; then + MIT_SCHEME_COMs="${MIT_SCHEME_COMs} ${f}.so" + MIT_SCHEME_CLEAN="${MIT_SCHEME_CLEAN} ${f}.c" + MIT_SCHEME_DEPS="${MIT_SCHEME_DEPS} +${f}.so: stamp-scheme" + else + MIT_SCHEME_COMs="${MIT_SCHEME_COMs} ${f}.com" + MIT_SCHEME_DEPS="${MIT_SCHEME_DEPS} +${f}.com: stamp-scheme" + fi +done +MIT_SCHEME_DEPS="${MIT_SCHEME_DEPS} +${MIT_SCHEME_PKD}: stamp-scheme" + +AC_SUBST([MIT_SCHEME_PROJECT]) +AC_SUBST([MIT_CFLAGS]) +AC_SUBST([MIT_SCHEME_EXE]) +AC_SUBST([MIT_SCHEME_LIBDIR]) +AC_SUBST([MIT_SCHEME_INCLUDEDIR]) +AC_SUBST([MIT_SCHEME_PKD]) +AC_SUBST([MIT_SCHEME_SCMs]) +AC_SUBST([MIT_SCHEME_BCIs]) +AC_SUBST([MIT_SCHEME_COMs]) +AC_SUBST([MIT_SCHEME_CLEAN]) +AC_SUBST([MIT_SCHEME_DEPS]) +AM_SUBST_NOTMAKE([MIT_SCHEME_DEPS]) +AC_CONFIG_FILES([Makefile]) +AC_OUTPUT diff --git a/src/pgsql/make.scm b/src/pgsql/make.scm new file mode 100644 index 000000000..9279ec5f6 --- /dev/null +++ b/src/pgsql/make.scm @@ -0,0 +1,9 @@ +#| -*-Scheme-*- |# + +;;;; Load the PGSQL option. + +(with-working-directory-pathname (directory-pathname (current-load-pathname)) + (lambda () + (load-package-set "pgsql"))) + +(add-subsystem-identification! "PGSQL" '(0 1)) \ No newline at end of file diff --git a/src/pgsql/optiondb.scm b/src/pgsql/optiondb.scm new file mode 100644 index 000000000..f0b36a20e --- /dev/null +++ b/src/pgsql/optiondb.scm @@ -0,0 +1,10 @@ +#| -*-Scheme-*- |# + +(define-load-option 'PGSQL + (standard-system-loader ".")) + +(further-load-options + (named-lambda (system-load-options) + (merge-pathnames "optiondb" + (cadr (access library-directory-path + (->environment '(runtime pathname))))))) \ No newline at end of file diff --git a/src/pgsql/pgsql-check.scm b/src/pgsql/pgsql-check.scm new file mode 100644 index 000000000..45c55587a --- /dev/null +++ b/src/pgsql/pgsql-check.scm @@ -0,0 +1,72 @@ +#| -*-Scheme-*- + +Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, + 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, + 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, + 2017 Massachusetts Institute of Technology + +This file is part of MIT/GNU Scheme. + +MIT/GNU Scheme is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or (at +your option) any later version. + +MIT/GNU Scheme is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with MIT/GNU Scheme; if not, write to the Free Software +Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, +USA. + +|# + +;;;; Test the PGSQL option. + +(let ((conn (open-pgsql-conn ""))) + + (define (query . strings) + (let ((query (string-append* strings))) + (exec-pgsql-query conn query))) + + (define (cmd . strings) + (let ((result (apply query strings))) + (let ((status (pgsql-cmd-status result))) + (pgsql-clear result) + status))) + + (if (not (pgsql-conn-open? conn)) + (error "could not connect:" conn)) + (ignore-errors (lambda () + (cmd "DROP TABLE monkey_business;"))) + (cmd "CREATE TABLE monkey_business ( name varchar (10) PRIMARY KEY );") + (cmd "INSERT INTO monkey_business (name) VALUES ('apple');") + (cmd "INSERT INTO monkey_business (name) VALUES ('banana');") + (cmd "INSERT INTO monkey_business (name) VALUES ('cherry');") + (let* ((result (query "SELECT * FROM monkey_business;")) + (n (pgsql-n-tuples result)) + (fruits + (do ((i 0 (+ i 1)) + (fruits '() + (cons (pgsql-get-value result i 0) fruits))) + ((= i n) + (pgsql-clear result) + (reverse! fruits))))) + (if (not (equal? fruits '("apple" "banana" "cherry"))) + (error "wrong fruits"))) + (close-pgsql-conn conn) + (if (pgsql-conn-open? conn) + (error "could not pgsql close:" conn)) + (if (not (condition? + (ignore-errors + (lambda () + (exec-pgsql-query conn "SELECT * FROM monkey_business;"))))) + (error "not signaling an error when closed:" conn)) + (let* ((sample " !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~") + (escaped (escape-pgsql-string sample)) + (expected " !\"#$%&''()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~")) + (if (not (equal? escaped expected)) + (error "not escaped properly:" escaped)))) \ No newline at end of file diff --git a/src/pgsql/pgsql-check.sh b/src/pgsql/pgsql-check.sh new file mode 100755 index 000000000..bf8c567e9 --- /dev/null +++ b/src/pgsql/pgsql-check.sh @@ -0,0 +1,9 @@ +#!/bin/sh +# +# Test the PostgreSQL option. + +set -e +${MIT_SCHEME_EXE} --prepend-library . <<\EOF +(load-option 'PGSQL) +(load "pgsql-check" (->environment '(pgsql))) +EOF diff --git a/src/pgsql/pgsql-shim.h b/src/pgsql/pgsql-shim.h new file mode 100644 index 000000000..6189017b6 --- /dev/null +++ b/src/pgsql/pgsql-shim.h @@ -0,0 +1,33 @@ +/* -*-C-*- + +Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, + 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, + 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, + 2017 Massachusetts Institute of Technology + +This file is part of MIT/GNU Scheme. + +MIT/GNU Scheme is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or (at +your option) any later version. + +MIT/GNU Scheme is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with MIT/GNU Scheme; if not, write to the Free Software +Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, +USA. + +*/ + +/* Interface to the pgsql database library */ + +#include "config.h" + +#ifdef HAVE_LIBPQ_FE_H +# include +#endif diff --git a/src/pgsql/pgsql.cdecl b/src/pgsql/pgsql.cdecl new file mode 100644 index 000000000..a3164679f --- /dev/null +++ b/src/pgsql/pgsql.cdecl @@ -0,0 +1,161 @@ +#| -*-Scheme-*- + +Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, + 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, + 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, + 2017 Massachusetts Institute of Technology + +This file is part of MIT/GNU Scheme. + +MIT/GNU Scheme is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or (at +your option) any later version. + +MIT/GNU Scheme is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with MIT/GNU Scheme; if not, write to the Free Software +Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, +USA. + +|# + +;;;; C declarations for pgsql-shim.so. + + +(typedef ConnStatusType + (enum (CONNECTION_OK) + (CONNECTION_BAD) + (CONNECTION_STARTED) + (CONNECTION_MADE) + (CONNECTION_AWAITING_RESPONSE) + (CONNECTION_AUTH_OK) + (CONNECTION_SETENV) + (CONNECTION_SSL_STARTUP) + (CONNECTION_NEEDED))) + +(typedef ExecStatusType + (enum (PGRES_EMPTY_QUERY) + (PGRES_COMMAND_OK) + (PGRES_TUPLES_OK) + (PGRES_COPY_OUT) + (PGRES_COPY_IN) + (PGRES_BAD_RESPONSE) + (PGRES_NONFATAL_ERROR) + (PGRES_FATAL_ERROR) + (PGRES_COPY_BOTH) + (PGRES_SINGLE_TUPLE))) + +(typedef PostgresPollingStatusType + (enum (PGRES_POLLING_FAILED) ; = 0 + (PGRES_POLLING_READING) ; These two indicate that one may + (PGRES_POLLING_WRITING) ; use select before polling again. + (PGRES_POLLING_OK) + (PGRES_POLLING_ACTIVE))) ; unused + +(typedef size_t uint) + +(extern void PQclear (res (* PGresult))) + +(extern (* char) PQcmdStatus (res (* PGresult))) + +(extern (* char) PQcmdTuples (res (* PGresult))) + +(extern (* PGconn) PQconnectdb (conninfo (* (const char)))) + +(extern uint PQconnectPoll (conn (* PGconn))) + +(extern (* PGconn) PQconnectStart (conninfo (* (const char)))) + +(extern (* char) PQdb (conn (* (const PGconn)))) + +(extern int PQendcopy (conn (* PGconn))) + +(extern (* char) PQerrorMessage (conn (* (const PGconn)))) + +(extern (* uchar) PQescapeBytea + (from (* (const uchar))) + (from_length size_t) + (to_length (* size_t))) + +(extern size_t PQescapeString + (to (* char)) + (from (* (const char))) + (length size_t)) + +(extern (* PGresult) PQexec (conn (* PGconn)) + (query (* (const char)))) + +(extern void PQfinish (conn (* PGconn))) + +(extern (* char) PQfname + (res (* (const PGresult))) + (column_number int)) + +(extern int PQgetisnull + (res (* (const PGresult))) + (tup_num int) + (field_num int)) + +(extern int PQgetline + (conn (* PGconn)) + (buffer (* char)) + (length int)) + +(extern void PQfreemem + (ptr (* void))) + +(extern (* char) PQgetvalue + (res (* (const PGresult))) + (tup_num int) + (field_num int)) + +(extern (* char) PQhost (conn (* (const PGconn)))) + +(extern (* (const PGresult)) + PQmakeEmptyPGresult + (conn (* PGconn)) + (status ExecStatusType)) + +(extern int PQnfields (res (* (const PGresult)))) + +(extern int PQntuples (res (* (const PGresult)))) + +(extern (* char) PQoptions (conn (* (const PGconn)))) + +(extern (* char) PQpass (conn (* (const PGconn)))) + +(extern (* char) PQport (conn (* (const PGconn)))) + +(extern int PQputline + (conn (* PGconn)) + (string (* (const char)))) + +(extern void PQreset (conn (* PGconn))) + +(extern PostgresPollingStatusType + PQresetPoll (conn (* PGconn))) + +(extern int PQresetStart (conn (* PGconn))) + +(extern (* char) PQresStatus (status ExecStatusType)) + +(extern (* char) PQresultErrorMessage (res (* (const PGresult)))) + +(extern ExecStatusType + PQresultStatus (res (* (const PGresult)))) + +(extern ConnStatusType + PQstatus (res (* (const PGconn)))) + +(extern (* char) PQtty (conn (* (const PGconn)))) + +(extern (* uchar) PQunescapeBytea + (from (* (const uchar))) + (to_length (* size_t))) + +(extern (* char) PQuser (conn (* (const PGconn)))) \ No newline at end of file diff --git a/src/pgsql/pgsql.pkg b/src/pgsql/pgsql.pkg new file mode 100644 index 000000000..b0e264bb5 --- /dev/null +++ b/src/pgsql/pgsql.pkg @@ -0,0 +1,102 @@ +#| -*-Scheme-*- + +Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, + 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, + 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, + 2017 Massachusetts Institute of Technology + +This file is part of MIT/GNU Scheme. + +MIT/GNU Scheme is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or (at +your option) any later version. + +MIT/GNU Scheme is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with MIT/GNU Scheme; if not, write to the Free Software +Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, +USA. + +|# + +(global-definitions runtime/) + +(define-package (pgsql) + (files "pgsql") + (parent ()) + (initialization (initialize-package!)) + (import (runtime ustring) + cp1-ref + ustring-cp-size + ustring?) + (export () + import-pgsql) + (export (pgsql global) + call-with-pgsql-conn + close-pgsql-conn + condition-type:pgsql-connection-error + condition-type:pgsql-error + condition-type:pgsql-query-error + decode-pgsql-bytea + encode-pgsql-bytea + escape-pgsql-string + exec-pgsql-query +; guarantee-pgsql-available + make-empty-pgsql-result + open-pgsql-conn +; pgsql-available? + pgsql-bad-response + pgsql-clear + pgsql-cmd-status + pgsql-cmd-tuples + pgsql-command-ok + pgsql-conn-db + pgsql-conn-error-message + pgsql-conn-host + pgsql-conn-open? + pgsql-conn-options + pgsql-conn-pass + pgsql-conn-port + pgsql-conn-reset + pgsql-conn-reset-start + pgsql-conn-status + pgsql-conn-tty + pgsql-conn-user + pgsql-connection-auth-ok + pgsql-connection-awaiting-response + pgsql-connection-bad + pgsql-connection-made + pgsql-connection-ok + pgsql-connection-setenv + pgsql-connection-started + pgsql-copy-in + pgsql-copy-out + pgsql-empty-query + pgsql-fatal-error + pgsql-field-name + pgsql-get-is-null? + pgsql-get-line + pgsql-get-value + pgsql-n-fields + pgsql-n-tuples + pgsql-nonfatal-error + pgsql-polling-active + pgsql-polling-failed + pgsql-polling-ok + pgsql-polling-reading + pgsql-polling-writing + pgsql-put-line + pgsql-result-error-message + pgsql-result-status + pgsql-tuples-ok + poll-pgsql-conn + poll-pgsql-reset)) + +(define-package (pgsql global) + ;; Just to get cref to analyze whether all exports are defined. + ) \ No newline at end of file diff --git a/src/pgsql/pgsql.scm b/src/pgsql/pgsql.scm new file mode 100644 index 000000000..5248a4569 --- /dev/null +++ b/src/pgsql/pgsql.scm @@ -0,0 +1,682 @@ +#| -*-Scheme-*- + +Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, + 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, + 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, + 2017 Massachusetts Institute of Technology + +This file is part of MIT/GNU Scheme. + +MIT/GNU Scheme is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or (at +your option) any later version. + +MIT/GNU Scheme is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with MIT/GNU Scheme; if not, write to the Free Software +Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, +USA. + +|# + +;;;; PostgreSQL Interface +;;; package: (pgsql) + +(declare (usual-integrations)) + +(define (import-pgsql) + (let ((target-environment (nearest-repl/environment)) + (source-environment (->environment '(pgsql)))) + (for-each (lambda (name) + (link-variables target-environment name + source-environment name)) + '( + call-with-pgsql-conn + close-pgsql-conn + condition-type:pgsql-connection-error + condition-type:pgsql-error + condition-type:pgsql-query-error + decode-pgsql-bytea + encode-pgsql-bytea + escape-pgsql-string + exec-pgsql-query + ;; guarantee-pgsql-available + make-empty-pgsql-result + open-pgsql-conn + ;; pgsql-available? + pgsql-bad-response + pgsql-clear + pgsql-cmd-status + pgsql-cmd-tuples + pgsql-command-ok + pgsql-conn-db + pgsql-conn-error-message + pgsql-conn-host + pgsql-conn-open? + pgsql-conn-options + pgsql-conn-pass + pgsql-conn-port + pgsql-conn-reset + pgsql-conn-reset-start + pgsql-conn-status + pgsql-conn-tty + pgsql-conn-user + pgsql-connection-auth-ok + pgsql-connection-awaiting-response + pgsql-connection-bad + pgsql-connection-made + pgsql-connection-ok + pgsql-connection-setenv + pgsql-connection-started + pgsql-copy-in + pgsql-copy-out + pgsql-empty-query + pgsql-fatal-error + pgsql-field-name + pgsql-get-is-null? + pgsql-get-line + pgsql-get-value + pgsql-n-fields + pgsql-n-tuples + pgsql-nonfatal-error + pgsql-polling-active + pgsql-polling-failed + pgsql-polling-ok + pgsql-polling-reading + pgsql-polling-writing + pgsql-put-line + pgsql-result-error-message + pgsql-result-status + pgsql-tuples-ok + poll-pgsql-conn + poll-pgsql-reset + )))) + +(C-include "pgsql") + +(define-integrable (every-loop proc ref string start end) + (let loop ((i start)) + (if (fix:< i end) + (and (proc (ref string i)) + (loop (fix:+ i 1))) + #t))) + +(define (->bytes string) + (if (and (or (bytevector? string) + (and (ustring? string) + (fix:= 1 (ustring-cp-size string)))) + (let ((end (string-length string))) + (every-loop (lambda (cp) (fix:< cp #x80)) + cp1-ref string 0 end))) + string + (string->utf8 string))) + +(declare (integrate-operator bytes-length)) +(define (bytes-length bytes) + (if (bytevector? bytes) + (bytevector-length bytes) + (string-length bytes))) + +;(define-primitives +; (pq-clear 1) + +(define-integrable (pq-clear handle) + (C-call "PQclear" handle)) + +(define-integrable (peek-cstring alien) + (let ((bv (c-peek-cstring alien))) + (if (bytevector? bv) + (utf8->string bv) + bv))) + +; (pq-cmd-status 1) + +(define-integrable (pq-cmd-status handle) + (peek-cstring (C-call "PQcmdStatus" (make-alien 'char) handle))) + +; (pq-cmd-tuples 1) + +(define-integrable (pq-cmd-tuples handle) + (peek-cstring (C-call "PQcmdTuples" (make-alien 'char) handle))) + +; (pq-connect-db 2) + +(define-integrable (pq-connect-db conninfo weak-pair) + (weak-set-cdr! weak-pair + (C-call "PQconnectdb" (make-alien '|PGconn|) conninfo))) + +; (pq-connect-poll 1) + +(define-integrable (pq-connect-poll handle) + (C-call "PQconnectPoll" handle)) + +; (pq-connect-start 2) + +(define-integrable (pq-connect-start conninfo weak-pair) + (weak-set-cdr! weak-pair + (C-call "PQconnectStart" (make-alien '|PGconn|) conninfo))) + +; (pq-db 1) + +(define-integrable (pq-db handle) + (peek-cstring (C-call "PQdb" handle))) + +; (pq-end-copy 1) + +(define-integrable (pq-end-copy handle) + (C-call "PQendcopy" handle)) + +; (pq-error-message 1) + +(define-integrable (pq-error-message conn) + (peek-cstring (C-call "PQerrorMessage" (make-alien 'char) conn))) + +; (pq-escape-bytea 1) + +(define (pq-escape-bytea string) + (peek-memory string + (lambda (memory bytes length) + (C-call "PQescapeBytea" (memory-alien memory) + bytes (bytes-length bytes) length)))) + +(define (peek-memory string callout) + (let ((bytes (->bytes string)) + (memory (create-memory)) + (length (malloc (c-sizeof "size_t") '|size_t|))) + (callout memory bytes length) + (if (alien-null? (memory-alien memory)) + (error "insufficient memory") + (let* ((nbytes (C-> length "size_t")) ;includes terminating #\null + (bv (make-bytevector nbytes))) + (c-peek-bytes (memory-alien memory) 0 nbytes bv 0) + (free length) + (free-memory memory) + bv)))) + +(define (free-memory memory) + (remove-from-gc-finalizer! memories memory)) + +(define (create-memory) + (make-gc-finalized-object + memories + (lambda (p) + (weak-set-cdr! p (make-alien 'uchar))) + (lambda (alien) + (make-memory alien)))) + +; (pq-escape-string 2) + +(declare (integrate-operator pq-escape-string)) +(define (pq-escape-string bytes escaped) + (C-call "PQescapeString" escaped bytes (bytes-length bytes))) + +; (pq-exec 3) + +(define-integrable (pq-exec handle query weak-pair) + (weak-set-cdr! weak-pair + (C-call "PQexec" (make-alien '|PQresult|) handle query))) + +; (pq-field-name 2) + +(define-integrable (pq-field-name handle index) + (peek-cstring (C-call "PQfname" (make-alien 'char) handle index))) + +; (pq-finish 1) + +(define-integrable (pq-finish handle) + (C-call "PQfinish" handle)) + +(define-integrable (pq-freemem handle) + (if (not (alien-null? handle)) + (without-interruption + (lambda () + (C-call "PQfreemem" handle) + (alien-null! handle))))) + +; (pq-get-is-null? 3) + +(define-integrable (pq-get-is-null? result tup-num field-num) + (= 1 (C-call "PQgetisnull" result tup-num field-num))) + +; (pq-get-line 2) + +(define-integrable (pq-get-line conn buffer length) + (C-call "PQgetline" conn buffer length)) + +; (pq-get-value 3) + +(define-integrable (pq-get-value handle tup-num field-num) + (peek-cstring (C-call "PQgetvalue" (make-alien 'char) + handle tup-num field-num))) + +; (pq-host 1) + +(define-integrable (pq-host handle) + (peek-cstring (C-call "PQhost" handle))) + +; (pq-make-empty-pg-result 3) + +(define-integrable (pq-make-empty-pg-result handle status weak-pair) + (weak-set-cdr! weak-pair + (C-call "PQmakeEmptyPGresult" (make-alien '|PQresult|) + handle status))) + +; (pq-n-fields 1) + +(define-integrable (pq-n-fields handle) + (C-call "PQnfields" handle)) + +; (pq-n-tuples 1) + +(define-integrable (pq-n-tuples handle) + (C-call "PQntuples" handle)) + +; (pq-options 1) + +(define-integrable (pq-options handle) + (peek-cstring (C-call "PQoptions" (make-alien 'char) handle))) + +; (pq-pass 1) + +(define-integrable (pq-pass handle) + (peek-cstring (C-call "PQpass" (make-alien 'char) handle))) + +; (pq-port 1) + +(define-integrable (pq-port handle) + (peek-cstring (C-call "PQport" (make-alien 'char) handle))) + +; (pq-put-line 2) + +(define-integrable (pq-put-line handle buffer) + (C-call "PQputline" handle buffer)) + +; (pq-res-status 1) + +(define-integrable (pq-res-status status) + (peek-cstring (C-call "PQresStatus" (make-alien 'char) status))) + +; (pq-reset 1) + +(define-integrable (pq-reset handle) + (C-call "PQreset" handle)) + +; (pq-reset-poll 1) + +(define-integrable (pq-reset-poll handle) + (C-call "PQresetPoll" handle)) + +; (pq-reset-start 1) + +(define-integrable (pq-reset-start handle) + (C-call "PQresetStart" handle)) + +; (pq-result-error-message 1) + +(define-integrable (pq-result-error-message handle) + (peek-cstring (C-call "PQresultErrorMessage" (make-alien 'char) handle))) + +; (pq-result-status 1) + +(define-integrable (pq-result-status handle) + (C-call "PQresultStatus" handle)) + +; (pq-status 1) + +(define-integrable (pq-status handle) + (C-call "PQstatus" handle)) + +; (pq-tty 1) + +(define-integrable (pq-tty handle) + (peek-cstring (C-call "PQtty" (make-alien 'char) handle))) + +; (pq-unescape-bytea 1) + +(define (pq-unescape-bytea string) + (peek-memory string + (lambda (memory bytes length) + (C-call "PQunescapeBytea" (memory-alien memory) + bytes length)))) + +; (pq-user 1)) + +(define-integrable (pq-user handle) + (peek-cstring (C-call "PQuser" (make-alien 'char) handle))) + +(define-syntax define-enum + (sc-macro-transformer + (lambda (form environment) + environment + (if (syntax-match? '(IDENTIFIER * IDENTIFIER) (cdr form)) + `(BEGIN + ,@(let loop ((names (cddr form)) (index 0)) + (if (pair? names) + `((DEFINE ,(car names) ,index) + ,@(loop (cdr names) (+ index 1))) + '())) + (DEFINE ,(cadr form) '#(,@(cddr form)))) + (ill-formed-syntax form))))) + +(define (index->name index enum) + (guarantee index-fixnum? index 'INDEX->NAME) + (if (not (fix:< index (vector-length enum))) + (error:bad-range-argument index 'INDEX->NAME)) + (vector-ref enum index)) + +(define-enum connection-status + PGSQL-CONNECTION-OK + PGSQL-CONNECTION-BAD + PGSQL-CONNECTION-STARTED + PGSQL-CONNECTION-MADE + PGSQL-CONNECTION-AWAITING-RESPONSE + PGSQL-CONNECTION-AUTH-OK + PGSQL-CONNECTION-SETENV) + +(define-enum postgres-polling-status + PGSQL-POLLING-FAILED + PGSQL-POLLING-READING + PGSQL-POLLING-WRITING + PGSQL-POLLING-OK + PGSQL-POLLING-ACTIVE) + +(define-enum exec-status + PGSQL-EMPTY-QUERY + PGSQL-COMMAND-OK + PGSQL-TUPLES-OK + PGSQL-COPY-OUT + PGSQL-COPY-IN + PGSQL-BAD-RESPONSE + PGSQL-NONFATAL-ERROR + PGSQL-FATAL-ERROR) + +(define pgsql-initialized? #f) +(define connections) +(define results) +(define memories) + +(define-structure connection handle) +(define-structure result handle) +(define-structure memory alien) + +(define-syntax define-guarantee + (sc-macro-transformer + (lambda (form environment) + environment + (if (syntax-match? '(SYMBOL EXPRESSION) (cdr form)) + (let ((type (cadr form))) + (let ((type? (symbol type '?)) + (guarantee-type (symbol 'GUARANTEE- type)) + (error:not-type (symbol 'ERROR:NOT- type)) + (guarantee-valid-type (symbol 'GUARANTEE-VALID- type)) + (type-handle (symbol type '-HANDLE))) + `(BEGIN + (DEFINE-INTEGRABLE (,guarantee-type OBJECT CALLER) + (IF (NOT (,type? OBJECT)) + (,error:not-type OBJECT CALLER))) + (DEFINE (,error:not-type OBJECT CALLER) + (ERROR:WRONG-TYPE-ARGUMENT OBJECT ,(caddr form) CALLER)) + (DEFINE-INTEGRABLE (,guarantee-valid-type OBJECT CALLER) + (IF (AND (,type? OBJECT) (,type-handle OBJECT)) + (,type-handle OBJECT) + (,error:not-type OBJECT CALLER)))))) + (ill-formed-syntax form))))) + +(define-guarantee connection "PostgreSQL connection") +(define-guarantee result "PostgreSQL query result") + +(define (initialize-package!) + (if (not pgsql-initialized?) + (begin + (set! connections + (make-gc-finalizer pq-finish + connection? + connection-handle + set-connection-handle!)) + (set! results + (make-gc-finalizer pq-clear + result? + result-handle + set-result-handle!)) + (set! memories + (make-gc-finalizer pq-freemem + memory? + memory-alien + set-memory-alien!)) + (set! pgsql-initialized? #t)))) + +#;(define (guarantee-pgsql-available) + (if (not (pgsql-available?)) + (error "This Scheme system was built without PostgreSQL support."))) + +(define condition-type:pgsql-error + (make-condition-type 'PGSQL-ERROR condition-type:error '() + (lambda (condition port) + condition + (write-string "Unknown PostgreSQL error." port)))) + +(define condition-type:pgsql-connection-error + (make-condition-type 'PGSQL-CONNECTION-ERROR condition-type:pgsql-error + '(MESSAGE) + (lambda (condition port) + (write-string "Unable to connect to PostgreSQL server" port) + (write-message (access-condition condition 'MESSAGE) port)))) + +(define error:pgsql-connection + (condition-signaller condition-type:pgsql-connection-error + '(MESSAGE) + standard-error-handler)) + +(define condition-type:pgsql-query-error + (make-condition-type 'PGSQL-QUERY-ERROR condition-type:pgsql-error + '(QUERY RESULT) + (lambda (condition port) + (write-string "PostgreSQL query error" port) + (write-message + (pgsql-result-error-message (access-condition condition 'RESULT)) + port)))) + +(define error:pgsql-query + (condition-signaller condition-type:pgsql-query-error + '(QUERY RESULT) + standard-error-handler)) + +(define (write-message string port) + (if string + (begin + (write-string ": " port) + (write-string + (let ((result (regsexp-match-string error-regsexp string))) + (if result + (cdr (assv 'message (cddr result))) + string)) + port)) + (write-string "." port))) + +(define error-regsexp + (compile-regsexp + '(seq (string-start) + (* (char-in whitespace)) + (? (string-ci "error:")) + (* (char-in whitespace)) + (group message (* (any-char))) + (* (char-in whitespace)) + (string-end)))) + +(define (open-pgsql-conn parameters #!optional wait?) + #;(guarantee-pgsql-available) + (let ((wait? (if (default-object? wait?) #t wait?))) + (make-gc-finalized-object + connections + (lambda (p) + (if wait? + (pq-connect-db parameters p) + (pq-connect-start parameters p))) + (lambda (handle) + (cond ((alien-null? handle) + (error:pgsql-connection #f)) + ((= PGSQL-CONNECTION-BAD (pq-status handle)) + (let ((msg (pq-error-message handle))) + (pq-finish handle) + (error:pgsql-connection msg)))) + (make-connection handle))))) + +(define (close-pgsql-conn connection) + (remove-from-gc-finalizer! connections connection)) + +(define (call-with-pgsql-conn parameters procedure) + (let ((conn)) + (dynamic-wind (lambda () + (set! conn (open-pgsql-conn parameters)) + unspecific) + (lambda () + (procedure conn)) + (lambda () + (close-pgsql-conn conn) + (set! conn) + unspecific)))) + +(define (pgsql-conn-open? connection) + (guarantee-connection connection 'PGSQL-CONN-OPEN?) + (if (connection-handle connection) #t #f)) + +(define-integrable (connection->handle connection) + (guarantee-valid-connection connection 'CONNECTION->HANDLE)) + +(define (poll-pgsql-conn connection) + (index->name (pq-connect-poll (connection->handle connection)) + postgres-polling-status)) + +(define (poll-pgsql-reset connection) + (index->name (pq-reset-poll (connection->handle connection)) + postgres-polling-status)) + +(define-syntax define-connection-accessor + (sc-macro-transformer + (lambda (form environment) + environment + (if (syntax-match? '(SYMBOL) (cdr form)) + (let ((field (cadr form))) + `(DEFINE (,(symbol 'PGSQL-CONN- field) OBJECT) + (,(symbol 'PQ- field) (CONNECTION->HANDLE OBJECT)))) + (ill-formed-syntax form))))) + +(define-connection-accessor db) +(define-connection-accessor user) +(define-connection-accessor pass) +(define-connection-accessor host) +(define-connection-accessor port) +(define-connection-accessor tty) +(define-connection-accessor options) +(define-connection-accessor reset) +(define-connection-accessor reset-start) +(define-connection-accessor error-message) + +(define (pgsql-conn-status connection) + (index->name (pq-status (connection->handle connection)) connection-status)) + +(define (pgsql-get-line connection buffer) + (pq-get-line (connection->handle connection) + buffer (bytevector-length buffer))) + +(define (pgsql-put-line connection buffer) + (pq-put-line (connection->handle connection) buffer)) + +(define (pgsql-end-copy connection) + (pq-end-copy (connection->handle connection))) + +(define (escape-pgsql-string string) + ;;(guarantee-pgsql-available) + (let* ((bytes (->bytes string)) + (length (bytes-length bytes)) + (escaped-bytes (malloc (fix:1+ (fix:* 2 length)) 'char)) + (escaped-string (begin + (pq-escape-string bytes escaped-bytes) + (peek-cstring escaped-bytes)))) + (free escaped-bytes) + escaped-string)) + +(define (encode-pgsql-bytea bytes) + (guarantee-pgsql-available) + (pq-escape-bytea bytes)) + +(define (decode-pgsql-bytea string) + (guarantee-pgsql-available) + (pq-unescape-bytea string)) + +(define (exec-pgsql-query connection query) + (guarantee string? query 'EXEC-PGSQL-QUERY) + (let ((result + (let ((handle (connection->handle connection))) + (make-gc-finalized-object + results + (lambda (p) + (pq-exec handle query p)) + (lambda (result-handle) + (if (alien-null? result-handle) + (error "Unable to execute PostgreSQL query:" query)) + (make-result result-handle)))))) + (if (not (memq (pgsql-result-status result) + '(PGSQL-COMMAND-OK + PGSQL-TUPLES-OK + PGSQL-COPY-OUT + PGSQL-COPY-IN))) + (error:pgsql-query query result)) + result)) + +(define (make-empty-pgsql-result connection status) + (let ((handle (connection->handle connection))) + (make-gc-finalized-object + results + (lambda (p) + (pq-make-empty-pg-result handle status p)) + (lambda (result-handle) + (if (= 0 result-handle) + (error "Unable to create PostgreSQL result:" status)) + (make-result result-handle))))) + +(define-integrable (result->handle result operator) + (guarantee-valid-result result operator)) + +(define-syntax define-result-accessor + (sc-macro-transformer + (lambda (form environment) + environment + (if (syntax-match? '(SYMBOL) (cdr form)) + (let* ((field (cadr form)) + (operator (symbol 'PGSQL- field))) + `(DEFINE (,operator OBJECT) + (,(symbol 'PQ- field) (RESULT->HANDLE OBJECT ',operator)))) + (ill-formed-syntax form))))) + +(define-result-accessor result-error-message) +(define-result-accessor n-tuples) +(define-result-accessor n-fields) +(define-result-accessor cmd-status) + +(define (pgsql-result-status result) + (index->name (pq-result-status (result->handle result 'pgsql-result-status)) + exec-status)) + +(define (pgsql-clear result) + (remove-from-gc-finalizer! results result)) + +(define (pgsql-field-name result index) + (pq-field-name (result->handle result 'pgsql-field-name) index)) + +(define (pgsql-get-value result row column) + (let ((handle (result->handle result 'pgsql-get-value))) + (if (pq-get-is-null? handle row column) + #f + (pq-get-value handle row column)))) + +(define (pgsql-get-is-null? result row column) + (pq-get-is-null? (result->handle result 'pgsql-get-is-null?) row column)) + +(define (pgsql-cmd-tuples result) + (string->number (pq-cmd-tuples (result->handle result 'pgsql-cmd-tuples)))) \ No newline at end of file diff --git a/src/pgsql/tags-fix.sh b/src/pgsql/tags-fix.sh new file mode 100755 index 000000000..14e5e8636 --- /dev/null +++ b/src/pgsql/tags-fix.sh @@ -0,0 +1,42 @@ +#!/bin/sh +# -*-Scheme-*- +# +# Chop the generated $1-shim.c and $1-const.c files out of TAGS. + +set -e +: ${MIT_SCHEME_EXE=mit-scheme} +${MIT_SCHEME_EXE} --batch-mode -- ${1+"$@"} <<\EOF +(let ((name (car (command-line)))) + (let ((shim.c-prefix (string-append name "-shim.c,")) + (const.c-prefix (string-append name "-const.c,"))) + + (define (rewriter in out) + (let loop ((skipping? #f)) + (let ((line (read-line in))) + (cond ((eof-object? line) + unspecific) + ((string=? line "\f") + (let ((next (read-line in))) + (cond ((eof-object? next) (error "Bogus TAGS format:" next)) + ((or (string-prefix? shim.c-prefix next) + (string-prefix? const.c-prefix next)) + (loop #t)) + (else + (write-string line out) + (newline out) + (write-string next out) + (newline out) + (loop #f))))) + (skipping? + (loop skipping?)) + (else + (write-string line out) + (newline out) + (loop skipping?)))))) + + (parameterize ((param:suppress-loading-message? #t)) + (load-option 'FFI)) + ((access rewrite-file (->environment '(ffi build))) + (merge-pathnames "TAGS") + rewriter))) +EOF