flipperzero-firmware/core/furi/stdglue.h

#pragma once

#include <stdbool.h>
#include <stdlib.h>

#ifdef __cplusplus
extern "C" {
#endif

/* Write callback
 * @param _cookie - pointer to cookie (see stdio gnu extension)
 * @param data - pointer to data
 * @param size - data size
 * @warnign your handler must consume everything
 */
typedef void (*FuriStdglueWriteCallback)(void* _cookie, const char* data, size_t size);

/* Initialized std library glue code */
void furi_stdglue_init();

/* Set global STDOUT callback
 * @param callback - callback or NULL to clear
 * @return true on success, otherwise fail
 * @warning function is thread aware, use this API from the same thread
 */
bool furi_stdglue_set_global_stdout_callback(FuriStdglueWriteCallback callback);

/* Set STDOUT callback for your thread 
 * @param callback - callback or NULL to clear
 * @return true on success, otherwise fail
 * @warning function is thread aware, use this API from the same thread
 */
bool furi_stdglue_set_thread_stdout_callback(FuriStdglueWriteCallback callback);

#ifdef __cplusplus
}
#endif