diff options
Diffstat (limited to 'src/misc')
| -rw-r--r-- | src/misc/blob.hpp | 81 |
1 files changed, 44 insertions, 37 deletions
diff --git a/src/misc/blob.hpp b/src/misc/blob.hpp index 6c8db42fb..25d84e050 100644 --- a/src/misc/blob.hpp +++ b/src/misc/blob.hpp @@ -89,11 +89,52 @@ public: } protected: - /** initialize the empty blob by setting the header pointer to the static BlobHeader with - * both items and capacity containing zero */ + /** all allocation should happen here */ + static FORCEINLINE BlobHeader *RawAlloc(uint num_bytes) + { + return (BlobHeader*)MallocT<byte>(num_bytes); + } + + /** Return header pointer to the static BlobHeader with + * both items and capacity containing zero */ + static FORCEINLINE BlobHeader *Zero() + { + return const_cast<BlobHeader *>(&ByteBlob::hdrEmpty[1]); + } + + /** simple allocation policy - can be optimized later */ + static FORCEINLINE uint AllocPolicy(uint min_alloc) + { + if (min_alloc < (1 << 9)) { + if (min_alloc < (1 << 5)) return (1 << 5); + return (min_alloc < (1 << 7)) ? (1 << 7) : (1 << 9); + } + if (min_alloc < (1 << 15)) { + if (min_alloc < (1 << 11)) return (1 << 11); + return (min_alloc < (1 << 13)) ? (1 << 13) : (1 << 15); + } + if (min_alloc < (1 << 20)) { + if (min_alloc < (1 << 17)) return (1 << 17); + return (min_alloc < (1 << 19)) ? (1 << 19) : (1 << 20); + } + min_alloc = (min_alloc | ((1 << 20) - 1)) + 1; + return min_alloc; + } + + /** all deallocations should happen here */ + static FORCEINLINE void RawFree(BlobHeader *p) + { + /* Just to silence an unsilencable GCC 4.4+ warning. */ + assert(p != ByteBlob::hdrEmpty); + + /* In case GCC warns about the following, see GCC's PR38509 why it is bogus. */ + free(p); + } + + /** initialize the empty blob */ FORCEINLINE void InitEmpty() { - header = const_cast<BlobHeader *>(&ByteBlob::hdrEmpty[1]); + header = Zero(); } /** initialize blob by attaching it to the given header followed by data */ @@ -217,40 +258,6 @@ public: RawFree(pOldHdr); } - /** simple allocation policy - can be optimized later */ - FORCEINLINE static uint AllocPolicy(uint min_alloc) - { - if (min_alloc < (1 << 9)) { - if (min_alloc < (1 << 5)) return (1 << 5); - return (min_alloc < (1 << 7)) ? (1 << 7) : (1 << 9); - } - if (min_alloc < (1 << 15)) { - if (min_alloc < (1 << 11)) return (1 << 11); - return (min_alloc < (1 << 13)) ? (1 << 13) : (1 << 15); - } - if (min_alloc < (1 << 20)) { - if (min_alloc < (1 << 17)) return (1 << 17); - return (min_alloc < (1 << 19)) ? (1 << 19) : (1 << 20); - } - min_alloc = (min_alloc | ((1 << 20) - 1)) + 1; - return min_alloc; - } - - /** all allocation should happen here */ - static FORCEINLINE BlobHeader *RawAlloc(uint num_bytes) - { - return (BlobHeader*)MallocT<byte>(num_bytes); - } - - /** all deallocations should happen here */ - static FORCEINLINE void RawFree(BlobHeader *p) - { - /* Just to silence an unsilencable GCC 4.4+ warning. */ - assert(p != ByteBlob::hdrEmpty); - - /* In case GCC warns about the following, see GCC's PR38509 why it is bogus. */ - free(p); - } /** fixing the four bytes at the end of blob data - useful when blob is used to hold string */ FORCEINLINE void FixTail() const { |