arduino-esp32/tools/sdk/include/newlib/esp_newlib.h

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// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef __ESP_NEWLIB_H__
#define __ESP_NEWLIB_H__
#include <sys/reent.h>
/**
* Replacement for newlib's _REENT_INIT_PTR and __sinit.
*
* Called from startup code and FreeRTOS, not intended to be called from
* application code.
*/
void esp_reent_init(struct _reent* r);
/**
* Function which sets up syscall table used by newlib functions in ROM.
*
* Called from the startup code, not intended to be called from application
* code.
*/
void esp_setup_syscall_table();
/**
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* Update current microsecond time from RTC
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*/
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void esp_set_time_from_rtc();
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#endif //__ESP_NEWLIB_H__