diff options
Diffstat (limited to 'modules/brotli/enc/memory.h')
| -rw-r--r-- | modules/brotli/enc/memory.h | 36 |
1 files changed, 24 insertions, 12 deletions
diff --git a/modules/brotli/enc/memory.h b/modules/brotli/enc/memory.h index ab928d019b..832e7b2b6e 100644 --- a/modules/brotli/enc/memory.h +++ b/modules/brotli/enc/memory.h @@ -56,6 +56,18 @@ BROTLI_INTERNAL void BrotliFree(MemoryManager* m, void* p); #define BROTLI_IS_OOM(M) (!!(M)->is_oom) #endif /* BROTLI_ENCODER_EXIT_ON_OOM */ +/* +BROTLI_IS_NULL is a fake check, BROTLI_IS_OOM does the heavy lifting. +The only purpose of it is to explain static analyzers the state of things. +NB: use ONLY together with BROTLI_IS_OOM + AND ONLY for allocations in the current scope. + */ +#if defined(__clang_analyzer__) && !defined(BROTLI_ENCODER_EXIT_ON_OOM) +#define BROTLI_IS_NULL(A) ((A) == nullptr) +#else /* defined(__clang_analyzer__) */ +#define BROTLI_IS_NULL(A) (!!0) +#endif /* defined(__clang_analyzer__) */ + BROTLI_INTERNAL void BrotliWipeOutMemoryManager(MemoryManager* m); /* @@ -66,18 +78,18 @@ A: array C: capacity R: requested size */ -#define BROTLI_ENSURE_CAPACITY(M, T, A, C, R) { \ - if (C < (R)) { \ - size_t _new_size = (C == 0) ? (R) : C; \ - T* new_array; \ - while (_new_size < (R)) _new_size *= 2; \ - new_array = BROTLI_ALLOC((M), T, _new_size); \ - if (!BROTLI_IS_OOM(M) && C != 0) \ - memcpy(new_array, A, C * sizeof(T)); \ - BROTLI_FREE((M), A); \ - A = new_array; \ - C = _new_size; \ - } \ +#define BROTLI_ENSURE_CAPACITY(M, T, A, C, R) { \ + if (C < (R)) { \ + size_t _new_size = (C == 0) ? (R) : C; \ + T* new_array; \ + while (_new_size < (R)) _new_size *= 2; \ + new_array = BROTLI_ALLOC((M), T, _new_size); \ + if (!BROTLI_IS_OOM(M) && !BROTLI_IS_NULL(new_array) && C != 0) \ + memcpy(new_array, A, C * sizeof(T)); \ + BROTLI_FREE((M), A); \ + A = new_array; \ + C = _new_size; \ + } \ } /* |