1 /*
2  * This file is part of the MicroPython project, http://micropython.org/
3  *
4  * The MIT License (MIT)
5  *
6  * Copyright (c) 2016 Damien P. George on behalf of Pycom Ltd
7  *
8  * Permission is hereby granted, free of charge, to any person obtaining a copy
9  * of this software and associated documentation files (the "Software"), to deal
10  * in the Software without restriction, including without limitation the rights
11  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12  * copies of the Software, and to permit persons to whom the Software is
13  * furnished to do so, subject to the following conditions:
14  *
15  * The above copyright notice and this permission notice shall be included in
16  * all copies or substantial portions of the Software.
17  *
18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
21  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24  * THE SOFTWARE.
25  */
26 #ifndef MICROPY_INCLUDED_PY_MPTHREAD_H
27 #define MICROPY_INCLUDED_PY_MPTHREAD_H
28 
29 #include "py/mpconfig.h"
30 
31 #if MICROPY_PY_THREAD
32 
33 struct _mp_state_thread_t;
34 
35 #ifdef MICROPY_MPTHREADPORT_H
36 #include MICROPY_MPTHREADPORT_H
37 #else
38 #include <mpthreadport.h>
39 #endif
40 
41 struct _mp_state_thread_t *mp_thread_get_state(void);
42 void mp_thread_set_state(struct _mp_state_thread_t *state);
43 void mp_thread_create(void *(*entry)(void *), void *arg, size_t *stack_size);
44 void mp_thread_start(void);
45 void mp_thread_finish(void);
46 void mp_thread_mutex_init(mp_thread_mutex_t *mutex);
47 int mp_thread_mutex_lock(mp_thread_mutex_t *mutex, int wait);
48 void mp_thread_mutex_unlock(mp_thread_mutex_t *mutex);
49 
50 #endif // MICROPY_PY_THREAD
51 
52 #if MICROPY_PY_THREAD && MICROPY_PY_THREAD_GIL
53 #include "py/mpstate.h"
54 #define MP_THREAD_GIL_ENTER() mp_thread_mutex_lock(&MP_STATE_VM(gil_mutex), 1)
55 #define MP_THREAD_GIL_EXIT() mp_thread_mutex_unlock(&MP_STATE_VM(gil_mutex))
56 #else
57 #define MP_THREAD_GIL_ENTER()
58 #define MP_THREAD_GIL_EXIT()
59 #endif
60 
61 #endif // MICROPY_INCLUDED_PY_MPTHREAD_H
62