Lua 5.1.1 dll:s

["Anders Backman" <andersb@...>]

Hi all.


Im using Lua 5.1.1 (together with tolua++1.0.94) under WindowsXP (.NET 2003)

I have been using earlier versions (up to Lua5.0) for years with no
problems.

Now when I updated to Lua 5.1.1 (and 1.0.94 of tolua) I started getting into
trouble.

First, I have several dynamic libraries (.dll:s) that are loaded during
runtime as plugins.
These plugins uses one common LuaState, so there is only one global
LuaState, initialized once.

Earlier versions of Lua was compiled into a static library and was linked
into all runtimes and libraries. This worked just fine.

Problem: 

Now with the new versions of Lua and Tolua this stopped working effectively.
I got all kinds of strange memory problems during loading of the dynamic
libraries that used the global luastate.

After quite a while of debugging with no clear result! I decided to compile
and link lua into a shared library (dll), then I got some problems with
linking of luac, It later turned out that I had to include all source files
into the luac project to get it to link correctly.

Ok, so after I had a lua51.dll most of the problems with the runtime errors
were gone.
Except for one, I commonly get a crash when calling tolua_pushusertype() (It
can be called during a tolua.cast), now this could of course be a strictly
tolua++ related problem, if so, then ignore this posting.

But I still wanted to see if there is anyone else with similar problems
regardin static/dynamic libraries when upgrading from lua5.0 and some
earlier tolua++ versions.

The callstack during the crash in tolua_pushusertype is:


luad.dll!luaH_getstr(Table * t=0x00000000, TString * key=0x01299148)  Line
456 + 0x3	C
luad.dll!luaH_get(Table * t=0x00000000, const lua_TValue *key=0x01291738)
Line 472 + 0xf	C
luad.dll!lua_rawget(lua_State * L=0x012914e0, int idx=-2)  Line 558+ 0x15
C
osg_luaplugind.dll!_tolua_pushusertype()  Line 59 + 0xb	

Cheers,
Anders

________________________________________________________________
 Anders Backman               Email:    andersb@cs.umu.se
 HPC2N/VRlab                  Phone:    +46 (0)90-786 9936
 Umea university              Cellular: +46 (0)70-392 64 67
 S-901 87 UMEA SWEDEN         Fax:      +46 90-786 6126
                               http://www.cs.umu.se/~andersb
 

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