Bug #95203 for LMDB_File: ReadMode 1 error

How exactly are you creating the $value scalar? get() will modify the second parameter if present so it can't be a read-only value. Do you have a test case that can reproduce this? This seems to work for me: perl -E 'use strict; use LMDB_File qw(:flags :cursor_op); mkdir("junkdb"); my $env = LMDB::Env->new("junkdb", { mapsize => 100 * 1024 * 1024 * 1024, }); my $txn = $env->BeginTxn; my $DB = $txn->OpenDB({ dbname => "rofl", flags => MDB_CREATE }); $DB->ReadMode(1); $DB->put("hello","world"); $DB->get("hello", my $value); say $value' world Also, which perl version are you using? On Wed Apr 30 06:27:24 2014, henri@asseily.com wrote: Show quoted text

In the current (0.06) version and with ReadMode(1) you need to use a "fresh" variable as the second argument of ->get, because, as a safety (the memory isn't owned by perl), the variable is marked read-only by LMDB_File. So it can't be reused as-is in another ->get(...). For the next version, now in testing, the internals was reimplemented to distinguish that kind of variables and allow its reuse by get, and under some constraints (Envs with MDB_WRITEMAP and Txn !MDB_RDONLY), allow them to be writen to. El Mié Abr 30 06:27:24 2014, henri@asseily.com escribió: Show quoted text