| /* SDPX-License-Identifier: MIT */ |
| |
| #ifndef CBOR_PROTOCOL_H__ |
| #define CBOR_PROTOCOL_H__ |
| |
| #ifdef _MSC_VER |
| #define inline _inline |
| #endif |
| |
| /* The 8 major types */ |
| #define MT_UNSIGNED 0 |
| #define MT_NEGATIVE 1 |
| #define MT_BYTES 2 |
| #define MT_TEXT 3 |
| #define MT_ARRAY 4 |
| #define MT_MAP 5 |
| #define MT_TAG 6 |
| #define MT_PRIM 7 |
| |
| /* The initial bytes resulting from those */ |
| #define IB_UNSIGNED (MT_UNSIGNED << 5) |
| #define IB_NEGATIVE (MT_NEGATIVE << 5) |
| #define IB_BYTES (MT_BYTES << 5) |
| #define IB_TEXT (MT_TEXT << 5) |
| #define IB_ARRAY (MT_ARRAY << 5) |
| #define IB_MAP (MT_MAP << 5) |
| #define IB_TAG (MT_TAG << 5) |
| #define IB_PRIM (MT_PRIM << 5) |
| |
| #define IB_NEGFLAG (IB_NEGATIVE - IB_UNSIGNED) |
| #define IB_NEGFLAG_AS_BIT(ib) ((ib) >> 5) |
| #define IB_TEXTFLAG (IB_TEXT - IB_BYTES) |
| |
| #define IB_AI(ib) ((ib)&0x1F) |
| #define IB_MT(ib) ((ib) >> 5) |
| |
| /* Tag numbers handled by this implementation */ |
| #define TAG_TIME_EPOCH 1 |
| #define TAG_BIGNUM 2 |
| #define TAG_BIGNUM_NEG 3 |
| #define TAG_URI 32 |
| #define TAG_RE 35 |
| |
| /* Initial bytes of those tag numbers */ |
| #define IB_TIME_EPOCH (IB_TAG | TAG_TIME_EPOCH) |
| #define IB_BIGNUM (IB_TAG | TAG_BIGNUM) |
| #define IB_BIGNUM_NEG (IB_TAG | TAG_BIGNUM_NEG) |
| /* TAG_URI and TAG_RE are non-immediate tags */ |
| |
| /* Simple values handled by this implementation */ |
| #define VAL_FALSE 20 |
| #define VAL_TRUE 21 |
| #define VAL_NIL 22 |
| #define VAL_UNDEF 23 |
| |
| /* Initial bytes of those simple values */ |
| #define IB_FALSE (IB_PRIM | VAL_FALSE) |
| #define IB_TRUE (IB_PRIM | VAL_TRUE) |
| #define IB_NIL (IB_PRIM | VAL_NIL) |
| #define IB_UNDEF (IB_PRIM | VAL_UNDEF) |
| |
| /* AI values with more data in head */ |
| #define AI_1 24 |
| #define AI_2 25 |
| #define AI_4 26 |
| #define AI_8 27 |
| #define AI_INDEF 31 |
| #define IB_BREAK (IB_PRIM | AI_INDEF) |
| /* For */ |
| #define IB_UNUSED (IB_TAG | AI_INDEF) |
| |
| /* Floating point initial bytes */ |
| #define IB_FLOAT2 (IB_PRIM | AI_2) |
| #define IB_FLOAT4 (IB_PRIM | AI_4) |
| #define IB_FLOAT8 (IB_PRIM | AI_8) |
| |
| // These definitions are here because they aren't required for the public |
| // interface, and they were quite confusing in cn-cbor.h |
| |
| #ifdef USE_CBOR_CONTEXT |
| /** |
| * Allocate enough space for 1 `cn_cbor` structure. |
| * |
| * @param[in] ctx The allocation context, or NULL for calloc. |
| * @return A pointer to a `cn_cbor` or NULL on failure |
| */ |
| #define CN_CALLOC(ctx) \ |
| ((ctx) && (ctx)->calloc_func) ? (ctx)->calloc_func(1, sizeof(cn_cbor), (ctx)->context) : calloc(1, sizeof(cn_cbor)); |
| |
| /** |
| * Free a |
| * @param free_func [description] |
| * @return [description] |
| */ |
| #define CN_FREE(ptr, ctx) ((ctx) && (ctx)->free_func) ? (ctx)->free_func((ptr), (ctx)->context) : free((ptr)); |
| |
| #define CBOR_CONTEXT_PARAM , context |
| #define CN_CALLOC_CONTEXT() CN_CALLOC(context) |
| #define CN_CBOR_FREE_CONTEXT(p) CN_FREE(p, context) |
| |
| #else |
| |
| #define CBOR_CONTEXT_PARAM |
| #define CN_CALLOC_CONTEXT() CN_CALLOC |
| #define CN_CBOR_FREE_CONTEXT(p) CN_FREE(p) |
| |
| #ifndef CN_CALLOC |
| #define CN_CALLOC calloc(1, sizeof(cn_cbor)) |
| #endif |
| |
| #ifndef CN_FREE |
| #define CN_FREE free |
| #endif |
| |
| #endif // USE_CBOR_CONTEXT |
| |
| #ifndef UNUSED_PARAM |
| #define UNUSED_PARAM(p) ((void)&(p)) |
| #endif |
| |
| #endif // CBOR_PROTOCOL_H__ |