Re: Wrapping existing FILE *s as Lua file objects

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• Subject: Re: Wrapping existing FILE *s as Lua file objects
• From: "Reuben Thomas" <rrt@...>
• Date: 2007年1月14日 17:36:24 -0000

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On 2007年1月14日 07:27:42 -0000, Mark Edgar <medgar@student.gc.maricopa.edu> wrote:

The ex implementations do this for the io.pipe() function, which returns two Lua file objects.

http://lua-users.org/wiki/ExtensionProposal
 FILE **pf = lua_newuserdata(L, sizeof *pf);
 *pf = 0;
 luaL_getmetatable(L, LUA_FILEHANDLE);
 lua_setmetatable(L, -2);
 *pf = /* your FILE* here */

Thanks, that's great. It looks then as though this is made available without being blessed. Wrapping the above as lua_pushfile is easy; having it blessed and in liolib.c would be nice.

--
http://rrt.sc3d.org/

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