/* Copyright 2011-2020 David Robillard Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies. THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #ifndef SERD_NODE_H #define SERD_NODE_H #include "exess/exess.h" #include "serd/serd.h" #include #include #include #include struct SerdNodeImpl { size_t length; ///< Length in bytes (not including null) SerdNodeFlags flags; ///< Node flags SerdNodeType type; ///< Node type }; static const size_t serd_node_align = 2 * sizeof(uint64_t); #if SIZE_MAX == UINT64_MAX static inline size_t serd_node_pad_length(const size_t n_bytes) { const size_t align = sizeof(SerdNode); assert((align & (align - 1u)) == 0u); return (n_bytes + align + 2u) & ~(align - 1u); } #else static inline size_t serd_node_pad_length(const size_t n_bytes) { const size_t pad = sizeof(SerdNode) - (n_bytes + 2) % sizeof(SerdNode); const size_t size = n_bytes + 2 + pad; assert(size % sizeof(SerdNode) == 0); return size; } #endif static inline char* SERD_NONNULL serd_node_buffer(SerdNode* SERD_NONNULL node) { return (char*)(node + 1); } static inline const char* SERD_NONNULL serd_node_buffer_c(const SerdNode* SERD_NONNULL node) { return (const char*)(node + 1); } static inline SerdNode* SERD_NONNULL serd_node_meta(SerdNode* const SERD_NONNULL node) { return node + 1 + (serd_node_pad_length(node->length) / sizeof(SerdNode)); } static inline const SerdNode* SERD_NONNULL serd_node_meta_c(const SerdNode* const SERD_NONNULL node) { assert(node->flags & (SERD_HAS_DATATYPE | SERD_HAS_LANGUAGE)); return node + 1 + (serd_node_pad_length(node->length) / sizeof(SerdNode)); } static inline const char* SERD_NONNULL serd_node_string_i(const SerdNode* const SERD_NONNULL node) { return (const char*)(node + 1); } static inline bool serd_node_pattern_match(const SerdNode* SERD_NULLABLE a, const SerdNode* SERD_NULLABLE b) { return !a || !b || serd_node_equals(a, b); } SERD_PURE_FUNC bool is_langtag(SerdStringView string); SERD_MALLOC_FUNC SerdNode* SERD_ALLOCATED serd_node_malloc(SerdAllocator* SERD_NULLABLE allocator, size_t size); SERD_MALLOC_FUNC SerdNode* SERD_ALLOCATED serd_node_try_malloc(SerdAllocator* SERD_NULLABLE allocator, SerdWriteResult result); SerdStatus serd_node_set(SerdAllocator* SERD_NULLABLE allocator, SerdNode* SERD_NULLABLE* SERD_NONNULL dst, const SerdNode* SERD_NULLABLE src); SERD_PURE_FUNC size_t serd_node_total_size(const SerdNode* SERD_NONNULL node); void serd_node_zero_pad(SerdNode* SERD_NONNULL node); ExessResult serd_node_get_value_as(const SerdNode* SERD_NONNULL node, ExessDatatype value_type, size_t value_size, void* SERD_NONNULL value); #endif // SERD_NODE_H