/*

* This file is part of the MicroPython project, http://micropython.org/

*

* The MIT License (MIT)

*

* Copyright (c) 2013, 2014 Damien P. George and 2017, 2018 Rami Ali

*

* 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 "py/obj.h"

#include "shared/runtime/interrupt_char.h"

#define mp_hal_stdin_rx_chr() (0)

mp_uint_t mp_hal_stdout_tx_strn(const char *str, size_t len);

void mp_hal_delay_ms(mp_uint_t ms);

void mp_hal_delay_us(mp_uint_t us);

mp_uint_t mp_hal_ticks_ms(void);

mp_uint_t mp_hal_ticks_us(void);

mp_uint_t mp_hal_ticks_cpu(void);

uint64_t mp_hal_time_ms(void);

int mp_hal_get_interrupt_char(void);

#if MICROPY_VFS_POSIX

#include <errno.h>

// This macro is used to implement PEP 475 to retry specified syscalls on EINTR

#define MP_HAL_RETRY_SYSCALL(ret, syscall, raise) \

{ \

for (;;) { \

ret = syscall; \

if (ret == -1) { \

int err = errno; \

if (err == EINTR) { \

mp_handle_pending(true); \

continue; \

} \

raise; \

} \

break; \

} \

}

#endif