// Copyright (c) 2004-present, Facebook, Inc.
// All Rights Reserved.
//
// This software may be used and distributed according to the terms of the
// GNU General Public License version 2 or any later version.

// buffer.c: implementation for a generic mechanism to expand a heap-allocated
//           buffer.
// no-check-code

#include <stdlib.h>
#include <string.h>

#include "lib/clib/buffer.h"

bool buffer_append(
    char** buffer,
    size_t* buffer_idx,
    size_t* buffer_sz,
    char* input,
    size_t input_sz,
    const float factor,
    const size_t min_increment,
    const size_t max_increment) {
  if (expand_to_fit(
          (void**)buffer,
          *buffer_idx,
          buffer_sz,
          input_sz,
          sizeof(char),
          factor,
          min_increment,
          max_increment) == false) {
    return false;
  }

  memcpy(&(*buffer)[*buffer_idx], input, input_sz);
  *buffer_idx += input_sz;

  return true;
}