squeezelite-esp32/components/spotify/cspot/bell/main/io/FileStream.cpp

#include "FileStream.h"

using namespace bell;

FileStream::FileStream(const std::string& path, std::string read)
{
    file = fopen(path.c_str(), "rb");
    if (file == NULL)
    {
        throw std::runtime_error("Could not open file: " + path);
    }
}

FileStream::~FileStream()
{
    close();
}

size_t FileStream::read(uint8_t *buf, size_t nbytes)
{
    if (file == NULL)
    {
        throw std::runtime_error("Stream is closed");
    }

    return fread(buf, 1, nbytes, file);
}

size_t FileStream::skip(size_t nbytes)
{
    if (file == NULL)
    {
        throw std::runtime_error("Stream is closed");
    }

    return fseek(file, nbytes, SEEK_CUR);
}

size_t FileStream::position()
{
    if (file == NULL)
    {
        throw std::runtime_error("Stream is closed");
    }

    return ftell(file);
}

size_t FileStream::size()
{
    if (file == NULL)
    {
        throw std::runtime_error("Stream is closed");
    }

    size_t pos = ftell(file);
    fseek(file, 0, SEEK_END);
    size_t size = ftell(file);
    fseek(file, pos, SEEK_SET);
    return size;
}

void FileStream::close()
{
    if (file != NULL)
    {
        fclose(file);
        file = NULL;
    }
}