| // Copyright 2013 Google Inc. All Rights Reserved. |
| // |
| // 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. |
| // |
| // Size-checked memory allocation. |
| |
| #ifndef BROTLI_UTILS_UTILS_H_ |
| #define BROTLI_UTILS_UTILS_H_ |
| |
| #include <assert.h> |
| |
| #include "./types.h" |
| |
| #if defined(__cplusplus) || defined(c_plusplus) |
| extern "C" { |
| #endif |
| |
| // This is the maximum memory amount that we will ever try to allocate. |
| #define BROTLI_MAX_ALLOCABLE_MEMORY (1ULL << 40) |
| |
| // size-checking safe malloc/calloc: verify that the requested size is not too |
| // large, or return NULL. You don't need to call these for constructs like |
| // malloc(sizeof(foo)), but only if there's font-dependent size involved |
| // somewhere (like: malloc(decoded_size * sizeof(*something))). That's why this |
| // safe malloc() borrows the signature from calloc(), pointing at the dangerous |
| // underlying multiply involved. |
| void* BrotliSafeMalloc(uint64_t nmemb, size_t size); |
| |
| #if defined(__cplusplus) || defined(c_plusplus) |
| } // extern "C" |
| #endif |
| |
| #endif /* BROTLI_UTILS_UTILS_H_ */ |
