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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2016 Damien P. George on behalf of Pycom Ltd
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <errno.h>
#include "py/mpstate.h"
#include "py/mpthread.h"
#if MICROPY_PY_THREAD
STATIC pthread_key_t tls_key;
void mp_thread_init(void) {
pthread_key_create(&tls_key, NULL);
pthread_setspecific(tls_key, &mp_state_ctx.thread);
}
mp_state_thread_t *mp_thread_get_state(void) {
return (mp_state_thread_t*)pthread_getspecific(tls_key);
}
void mp_thread_set_state(void *state) {
pthread_setspecific(tls_key, state);
}
void mp_thread_create(void *(*entry)(void*), void *arg, size_t stack_size) {
// default stack size is 8k machine-words
if (stack_size == 0) {
stack_size = 8192 * BYTES_PER_WORD;
}
// set thread attributes
pthread_attr_t attr;
int ret = pthread_attr_init(&attr);
if (ret != 0) {
goto er;
}
ret = pthread_attr_setstacksize(&attr, stack_size);
if (ret != 0) {
goto er;
}
// create thread
pthread_t id;
ret = pthread_create(&id, &attr, entry, arg);
if (ret != 0) {
goto er;
}
return;
er:
nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(ret)));
}
#endif // MICROPY_PY_THREAD
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