Function smg_uart_realloc_buffer

Sming/Components/arch_driver/src/uart.cpp:6–40

#include <esp_systemapi.h>

bool smg_uart_realloc_buffer(SerialBuffer*& buffer, size_t new_size)
{
	if(buffer != nullptr) {
		size_t res = 0;
		smg_uart_disable_interrupts();
		if(new_size == 0) {
			delete buffer;
			buffer = nullptr;
		} else {
			res = buffer->resize(new_size);
		}
		smg_uart_restore_interrupts();

		return res == new_size;
	}

	if(new_size == 0) {
		return true;
	}

#ifdef ARCH_ESP32
	// Avoid allocating in SPIRAM
	auto mem = heap_caps_malloc(sizeof(SerialBuffer), MALLOC_CAP_DEFAULT | MALLOC_CAP_INTERNAL);
	auto new_buf = new(mem) SerialBuffer;
#else
	auto new_buf = new SerialBuffer;
#endif
	if(new_buf != nullptr && new_buf->resize(new_size) == new_size) {
		buffer = new_buf;
		return true;
	}

	delete new_buf;
	return false;
}

smg_uart_t* smg_uart_init(uint8_t uart_nr, uint32_t baudrate, smg_uart_format_t format, smg_uart_mode_t mode,
						  uint8_t tx_pin, size_t rx_size, size_t tx_size)