72 lines
2.5 KiB
C
72 lines
2.5 KiB
C
/*
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* Copyright (c) 2016 Johny Mattsson
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the
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* distribution.
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* - Neither the name of the copyright holders nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "wifi_common.h"
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#include "ip_fmt.h"
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#include "lauxlib.h"
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#include <string.h>
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int wifi_event_idx_by_name (const event_desc_t *table, unsigned n, const char *name)
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{
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for (unsigned i = 0; i < n; ++i)
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if (strcmp (table[i].name, name) == 0)
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return i;
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return -1;
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}
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int wifi_event_idx_by_id (const event_desc_t *table, unsigned n, system_event_id_t id)
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{
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for (unsigned i = 0; i < n; ++i)
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if (table[i].event_id == id)
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return i;
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return -1;
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}
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int wifi_on (lua_State *L, const event_desc_t *table, unsigned n, int *event_cb)
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{
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const char *event_name = luaL_checkstring (L, 1);
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if (!lua_isnoneornil (L, 2))
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luaL_checkanyfunction (L, 2);
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lua_settop (L, 2);
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int idx = wifi_event_idx_by_name (table, n, event_name);
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if (idx < 0)
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return luaL_error (L, "unknown event: %s", event_name);
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luaL_unref (L, LUA_REGISTRYINDEX, event_cb[idx]);
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event_cb[idx] = lua_isnoneornil (L, 2) ?
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LUA_NOREF : luaL_ref (L, LUA_REGISTRYINDEX);
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return 0;
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}
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