(* Copyright (C) 2005, HELM Team. * * This file is part of HELM, an Hypertextual, Electronic * Library of Mathematics, developed at the Computer Science * Department, University of Bologna, Italy. * * HELM 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. * * HELM 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 HELM; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, * MA 02111-1307, USA. * * For details, see the HELM World-Wide-Web page, * http://cs.unibo.it/helm/. *) (* $Id: hMysql.ml 5769 2006-01-08 18:00:22Z sacerdot $ *) (* type result = Mysql.result option *) type result = Sqlite3.row list type dbd = Sqlite3.db option type error_code = | OK | Table_exists_error | Dup_keyname | No_such_table | No_such_index | Bad_table_error | GENERIC_ERROR of string exception Error of string let prerr_endline s = ()(*HLog.debug s;;*) let profiler = HExtlib.profile "Sqlite3" let quick_connect ?host ?(database = "sqlite") ?port ?password ?user () = let username = Helm_registry.get "user.name" in let tmp_db_name = if HExtlib.is_dir "/dev/shm/" && HExtlib.writable_dir "/dev/shm/" then ((*HLog.debug "using /dev/shm to store the working copy of the db";*) "/dev/shm/matita.db." ^ username ^ "." ^ string_of_int (Unix.getpid ())) else ((*HLog.debug "/dev/shm not available";*) Helm_registry.get "matita.basedir" ^ "/matita.db." ^ username ^ "." ^ string_of_int (Unix.getpid ())) in let db_name = Helm_registry.get "matita.basedir" ^ "/" ^ database ^ ".db" in let standard_db_name = Helm_registry.get "matita.rt_base_dir" ^ "/metadata.db" in let cp_to_ram_cmd = if HExtlib.is_regular db_name then "cp " ^ db_name ^ " " ^ tmp_db_name else (* we start from the standard library *) "cp " ^ standard_db_name ^ " " ^ tmp_db_name in ignore (Sys.command cp_to_ram_cmd); let mv_to_disk_cmd _ = ignore (Sys.command ("mv " ^ tmp_db_name ^ " " ^ db_name)) in at_exit mv_to_disk_cmd; let db = Sqlite3.db_open tmp_db_name in (* attach the REGEX function *) Sqlite3.create_fun_2 db "REGEXP" (fun s rex -> match rex, s with | Sqlite3.Data.TEXT rex, Sqlite3.Data.BLOB s | Sqlite3.Data.TEXT rex, Sqlite3.Data.TEXT s -> let r = Str.regexp rex in if Str.string_match r s 0 then Sqlite3.Data.INT 1L else Sqlite3.Data.INT 0L | _ -> raise (Error "wrong types to 'REGEXP'")); Some db ;; let disconnect db = match db with | None -> () | Some db -> let b = Sqlite3.db_close db in if b=false then prerr_endline "No Closed DataBase" ;; (* XXX hack, sqlite has a print "%q" that should be used, but is not bound *) let escape s = Pcre.replace ~pat:"([^'])'([^'])" ~templ:"$1''$2" s let string_of_rc = function |Sqlite3.Rc.OK -> "Sqlite3.Rc.OK" |Sqlite3.Rc.ERROR -> "Sqlite3.Rc.ERROR" |Sqlite3.Rc.INTERNAL -> "Sqlite3.Rc.INTERNAL" |Sqlite3.Rc.PERM -> "Sqlite3.Rc.PERM" |Sqlite3.Rc.ABORT -> "Sqlite3.Rc.ABORT" |Sqlite3.Rc.BUSY -> "Sqlite3.Rc.BUSY" |Sqlite3.Rc.LOCKED -> "Sqlite3.Rc.LOCKED" |Sqlite3.Rc.NOMEM -> "Sqlite3.Rc.NOMEM" |Sqlite3.Rc.READONLY -> "Sqlite3.Rc.READONLY" |Sqlite3.Rc.INTERRUPT -> "Sqlite3.Rc.INTERRUPT" |Sqlite3.Rc.IOERR -> "Sqlite3.Rc.IOERR" |Sqlite3.Rc.CORRUPT -> "Sqlite3.Rc.CORRUPT" |Sqlite3.Rc.NOTFOUND -> "Sqlite3.Rc.NOTFOUND" |Sqlite3.Rc.FULL -> "Sqlite3.Rc.FULL" |Sqlite3.Rc.CANTOPEN -> "Sqlite3.Rc.CANTOPEN" |Sqlite3.Rc.PROTOCOL -> "Sqlite3.Rc.PROTOCOL" |Sqlite3.Rc.EMPTY -> "Sqlite3.Rc.EMPTY" |Sqlite3.Rc.SCHEMA -> "Sqlite3.Rc.SCHEMA" |Sqlite3.Rc.TOOBIG -> "Sqlite3.Rc.TOOBIG" |Sqlite3.Rc.CONSTRAINT -> "Sqlite3.Rc.CONSTRAINT" |Sqlite3.Rc.MISMATCH -> "Sqlite3.Rc.MISMATCH" |Sqlite3.Rc.MISUSE -> "Sqlite3.Rc.MISUSE" |Sqlite3.Rc.NOFLS -> "Sqlite3.Rc.NOFLS" |Sqlite3.Rc.AUTH -> "Sqlite3.Rc.AUTH" |Sqlite3.Rc.FORMAT -> "Sqlite3.Rc.FORMAT" |Sqlite3.Rc.RANGE -> "Sqlite3.Rc.RANGE" |Sqlite3.Rc.NOTADB -> "Sqlite3.Rc.NOTADB" |Sqlite3.Rc.ROW -> "Sqlite3.Rc.ROW" |Sqlite3.Rc.DONE -> "Sqlite3.Rc.DONE" |Sqlite3.Rc.UNKNOWN n -> "Sqlite3.Rc.UNKNOWN " ^ string_of_int (Sqlite3.Rc.int_of_unknown n) ;; let pp_rc rc = prerr_endline (string_of_rc rc);; let exec db s = prerr_endline s; let stored_result = ref [] in let store row = stored_result := row :: !stored_result in match db with | None -> [] | Some db -> let rc = profiler.HExtlib.profile (Sqlite3.exec_no_headers db ~cb:store) s in match rc with | Sqlite3.Rc.OK -> !stored_result | _ -> raise (Error (string_of_rc rc)) ;; let rec map res ~f = let map f = List.map f res in profiler.HExtlib.profile map f ;; let iter res ~f = let iter f = List.iter f res in profiler.HExtlib.profile iter f ;; let errno = function | None -> OK | Some db -> match Sqlite3.errcode db with |Sqlite3.Rc.OK -> OK |Sqlite3.Rc.ERROR -> let errmsg = (Sqlite3.errmsg db) in if Pcre.pmatch errmsg ~pat:"^table .* already exists" then Table_exists_error else if Pcre.pmatch errmsg ~pat:"^index .* already exists" then Dup_keyname else if Pcre.pmatch errmsg ~pat:"^no such table: .*" then No_such_table else if Pcre.pmatch errmsg ~pat:"^no such index: .*" then No_such_index else GENERIC_ERROR errmsg |Sqlite3.Rc.INTERNAL |Sqlite3.Rc.PERM |Sqlite3.Rc.ABORT |Sqlite3.Rc.BUSY |Sqlite3.Rc.LOCKED |Sqlite3.Rc.NOMEM |Sqlite3.Rc.READONLY |Sqlite3.Rc.INTERRUPT |Sqlite3.Rc.IOERR |Sqlite3.Rc.CORRUPT |Sqlite3.Rc.NOTFOUND |Sqlite3.Rc.FULL |Sqlite3.Rc.CANTOPEN |Sqlite3.Rc.PROTOCOL |Sqlite3.Rc.EMPTY |Sqlite3.Rc.SCHEMA |Sqlite3.Rc.TOOBIG |Sqlite3.Rc.CONSTRAINT |Sqlite3.Rc.MISMATCH |Sqlite3.Rc.MISUSE |Sqlite3.Rc.NOFLS |Sqlite3.Rc.AUTH |Sqlite3.Rc.FORMAT |Sqlite3.Rc.RANGE |Sqlite3.Rc.NOTADB |Sqlite3.Rc.ROW |Sqlite3.Rc.DONE |Sqlite3.Rc.UNKNOWN _ -> GENERIC_ERROR "Sqlite3_generic_error" ;; let isMysql = false let escape_string_for_like = ("ESCAPE \"\\\"" : ('a,'b,'c,'a) format4);;