Improve large object performance. pg_lo_read() and pg_lo_read_all() should perform

much better now.
Fixed Old API support for pg_lo_import().

ext/pgsql/pgsql.c

@@ -1851,12 +1851,14 @@ PHP_FUNCTION(pg_lo_close)
 }
 /* }}} */
 
+#define PGSQL_LO_READ_BUF_SIZE  8192
+
 /* {{{ proto string pg_lo_read(resource large_object [, int len])
    Read a large object */
 PHP_FUNCTION(pg_lo_read)
 {
   	zval **pgsql_id, **len;
-	int buf_len = 1024, nbytes;
+	int buf_len = PGSQL_LO_READ_BUF_SIZE, nbytes;
 	char *buf;
 	pgLofp *pgsql;
 
@@ -1925,9 +1927,8 @@ PHP_FUNCTION(pg_lo_read_all)
   	zval **pgsql_id;
 	int i, tbytes;
 	volatile int nbytes;
-	char buf[8192];
+	char buf[PGSQL_LO_READ_BUF_SIZE];
 	pgLofp *pgsql;
-	int output=1;
 
 	switch(ZEND_NUM_ARGS()) {
 		case 1:
@@ -1943,11 +1944,9 @@ PHP_FUNCTION(pg_lo_read_all)
 	ZEND_FETCH_RESOURCE(pgsql, pgLofp *, pgsql_id, -1, "PostgreSQL large object", le_lofp);
 
 	tbytes = 0;
-	while ((nbytes = lo_read((PGconn *)pgsql->conn, pgsql->lofd, buf, 8192))>0) {
-		for(i=0; i<nbytes; i++) {
-			if (output) { (void) PUTC(buf[i]); }
-		}
-		tbytes += i;
+	while ((nbytes = lo_read((PGconn *)pgsql->conn, pgsql->lofd, buf, PGSQL_LO_READ_BUF_SIZE))>0) {
+		php_body_write(buf, nbytes TSRMLS_CC);
+		tbytes += nbytes;
 	}
 	RETURN_LONG(tbytes);
 }
@@ -1974,7 +1973,7 @@ PHP_FUNCTION(pg_lo_import)
 		CHECK_DEFAULT_LINK(id);
 	}
 	else if (zend_parse_parameters_ex(ZEND_PARSE_PARAMS_QUIET, argc TSRMLS_CC,
-									  "rs", &pgsql_link, &file_in, &name_len) == SUCCESS) {
+									  "sr", &file_in, &name_len, &pgsql_link ) == SUCCESS) {
 		php_error(E_NOTICE, "Old API for %s() is used.", get_active_function_name(TSRMLS_C));
 	}
 	else {