--- parser3/src/sql/pgsql/Attic/parser3pgsql.C 2001/08/01 07:41:37 1.7 +++ parser3/src/sql/pgsql/Attic/parser3pgsql.C 2001/08/24 07:04:25 1.12 @@ -7,18 +7,22 @@ 2001.07.30 using PgSQL 7.1.2 */ -static const char *RCSId="$Id: parser3pgsql.C,v 1.7 2001/08/01 07:41:37 parser Exp $"; +static const char *RCSId="$Id: parser3pgsql.C,v 1.12 2001/08/24 07:04:25 parser Exp $"; #include "config_includes.h" #include "pa_sql_driver.h" #include -#include +#include -// #include +// OIDOID from catalog/pg_type.h #define OIDOID 26 -#define LO_BUFSIZE 0x1000/*8192*/ +// LO_BUFSIZE from interfaces\libpq\fe-lobj.c = 8192 (0x2000) +// actually writing chunks of that size failed, reduced it twice +#define LO_BUFSIZE 0x1000 +// from postgres_ext.h +#define InvalidOid ((Oid) 0) #include "ltdl.h" @@ -63,12 +67,12 @@ public: return dlopen_file_spec? dlink(dlopen_file_spec):"client library column is empty"; } + + #define throwPQerror services._throw(PQerrorMessage(conn)) + /** connect @param used_only_in_connect_url format: @b user:pass@host[:port]|[local]/database - 3.23.22b - Currently the only option for @b character_set_name is cp1251_koi8. - WARNING: must be used only to connect, for buffer doesn't live long */ void connect( char *used_only_in_connect_url, @@ -81,38 +85,34 @@ public: char *pwd=lsplit(user, ':'); char *port=lsplit(host, ':'); -// _asm int 3; PGconn *conn=PQsetdbLogin( strcasecmp(host, "local")==0?NULL/* local Unix domain socket */:host, port, NULL, NULL, db, user, pwd); if(!conn) services._throw("PQsetdbLogin failed"); if(PQstatus(conn)!=CONNECTION_OK) - services._throw(PQerrorMessage(conn)); + throwPQerror; *(PGconn **)connection=conn; begin_transaction(services, conn); } - void disconnect(SQL_Driver_services&, void *connection) { -// _asm int 3; + void disconnect(void *connection) { PQfinish((PGconn *)connection); } void commit(SQL_Driver_services& services, void *connection) { -// _asm int 3; PGconn *conn=(PGconn *)connection; if(PGresult *res=PQexec(conn, "COMMIT")) PQclear(res); else - services._throw(PQerrorMessage(conn)); + throwPQerror; begin_transaction(services, conn); } void rollback(SQL_Driver_services& services, void *connection) { -// _asm int 3; PGconn *conn=(PGconn *)connection; if(PGresult *res=PQexec(conn, "ROLLBACK")) PQclear(res); else - services._throw(PQerrorMessage(conn)); + throwPQerror; begin_transaction(services, conn); } @@ -158,7 +158,7 @@ public: PGresult *res=PQexec(conn, statement); if(!res) - services._throw(PQerrorMessage(conn)); + throwPQerror; switch(PQresultStatus(res)) { case PGRES_EMPTY_QUERY: @@ -198,7 +198,6 @@ public: void *ptr; if(PQftype(res, i)==OIDOID) { // ObjectID column, read object bytes -// _asm int 3; char *error_pos=0; Oid oid=cell?atoi(cell):0; @@ -227,7 +226,7 @@ public: } else PQclear_throwPQerror; } else { - // normal column, read it as ASCII string + // normal column, read it normally size=(size_t)PQgetlength(res, r, i); if(size) { ptr=services.malloc(size); @@ -248,15 +247,12 @@ private: // private funcs if(PGresult *res=PQexec(conn, "BEGIN")) PQclear(res); else - services._throw(PQerrorMessage(conn)); + throwPQerror; } const char *preprocess_statement(SQL_Driver_services& services, PGconn *conn, const char *astatement, unsigned long offset, unsigned long limit) { size_t statement_size=strlen(astatement); - //_asm int 3; - - #define throwPQerror services._throw(PQerrorMessage(conn)) char *result=(char *)services.malloc(statement_size +MAX_NUMBER*2+15 // limit # offset #