6eaab4d004
Use host's functions for file i/o directly (open(), close() ,etc.), not the sim_* variants. Some dir functions need to be wrapped still because we need to cache the parents dir's path (host's dirent doesn't let us know). For the same reason (incompatibility) with host's dirent) detach some members from Rockbox' dirent struct and put it into an extra one, the values can be retrieved via the new dir_get_info(). Get rid of the sim_ prefix for sleep as well and change the signature to unix sleep(). git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27968 a1c6a512-1295-4272-9138-f99709370657
139 lines
3.7 KiB
C
139 lines
3.7 KiB
C
/*
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* Based on LuaFileSystem : http://www.keplerproject.org/luafilesystem
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*
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* Copyright © 2003 Kepler Project.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#include "plugin.h"
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#include "rocklibc.h"
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#include "lauxlib.h"
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#include "luadir.h"
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#define DIR_METATABLE "directory metatable"
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typedef struct dir_data {
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int closed;
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DIR *dir;
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} dir_data;
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static int make_dir (lua_State *L) {
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const char *path = luaL_checkstring (L, 1);
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lua_pushboolean (L, !rb->mkdir(path));
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return 1;
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}
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static int remove_dir (lua_State *L) {
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const char *path = luaL_checkstring (L, 1);
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lua_pushboolean (L, !rb->rmdir (path));
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return 1;
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}
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/*
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** Directory iterator
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*/
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static int dir_iter (lua_State *L) {
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struct dirent *entry;
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dir_data *d = (dir_data *)luaL_checkudata (L, 1, DIR_METATABLE);
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luaL_argcheck (L, !d->closed, 1, "closed directory");
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if ((entry = rb->readdir (d->dir)) != NULL) {
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struct dirinfo info = rb->dir_get_info(d->dir, entry);
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lua_pushstring (L, entry->d_name);
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lua_pushboolean (L, info.attribute & ATTR_DIRECTORY);
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return 2;
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} else {
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/* no more entries => close directory */
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rb->closedir (d->dir);
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d->closed = 1;
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return 0;
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}
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}
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/*
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** Closes directory iterators
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*/
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static int dir_close (lua_State *L) {
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dir_data *d = (dir_data *)lua_touserdata (L, 1);
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if (!d->closed && d->dir) {
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rb->closedir (d->dir);
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d->closed = 1;
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}
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return 0;
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}
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/*
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** Factory of directory iterators
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*/
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static int dir_iter_factory (lua_State *L) {
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const char *path = luaL_checkstring (L, 1);
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dir_data *d;
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lua_pushcfunction (L, dir_iter);
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d = (dir_data *) lua_newuserdata (L, sizeof(dir_data));
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d->closed = 0;
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luaL_getmetatable (L, DIR_METATABLE);
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lua_setmetatable (L, -2);
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d->dir = rb->opendir (path);
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if (d->dir == NULL)
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luaL_error (L, "cannot open %s: %d", path, errno);
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return 2;
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}
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/*
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** Creates directory metatable.
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*/
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static int dir_create_meta (lua_State *L) {
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luaL_newmetatable (L, DIR_METATABLE);
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/* set its __gc field */
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lua_pushstring (L, "__index");
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lua_newtable(L);
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lua_pushstring (L, "next");
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lua_pushcfunction (L, dir_iter);
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lua_settable(L, -3);
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lua_pushstring (L, "close");
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lua_pushcfunction (L, dir_close);
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lua_settable(L, -3);
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lua_settable (L, -3);
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lua_pushstring (L, "__gc");
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lua_pushcfunction (L, dir_close);
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lua_settable (L, -3);
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return 1;
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}
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static const struct luaL_reg fslib[] = {
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{"dir", dir_iter_factory},
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{"mkdir", make_dir},
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{"rmdir", remove_dir},
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{NULL, NULL},
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};
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int luaopen_luadir (lua_State *L) {
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dir_create_meta (L);
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luaL_register (L, LUA_DIRLIBNAME, fslib);
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return 1;
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}
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