diff options
Diffstat (limited to 'host/lib/deps/rpclib/include/rpc/msgpack/zone.h')
-rw-r--r-- | host/lib/deps/rpclib/include/rpc/msgpack/zone.h | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/host/lib/deps/rpclib/include/rpc/msgpack/zone.h b/host/lib/deps/rpclib/include/rpc/msgpack/zone.h new file mode 100644 index 000000000..27668a730 --- /dev/null +++ b/host/lib/deps/rpclib/include/rpc/msgpack/zone.h @@ -0,0 +1,171 @@ +/* + * MessagePack for C memory pool implementation + * + * Copyright (C) 2008-2010 FURUHASHI Sadayuki + * + * 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. + */ +#ifndef MSGPACK_ZONE_H +#define MSGPACK_ZONE_H + +#include "sysdep.h" + +#ifdef __cplusplus +extern "C" { +#endif + + +/** + * @defgroup msgpack_zone Memory zone + * @ingroup msgpack + * @{ + */ + +typedef struct msgpack_zone_finalizer { + void (*func)(void* data); + void* data; +} msgpack_zone_finalizer; + +typedef struct msgpack_zone_finalizer_array { + msgpack_zone_finalizer* tail; + msgpack_zone_finalizer* end; + msgpack_zone_finalizer* array; +} msgpack_zone_finalizer_array; + +struct msgpack_zone_chunk; +typedef struct msgpack_zone_chunk msgpack_zone_chunk; + +typedef struct msgpack_zone_chunk_list { + size_t free; + char* ptr; + msgpack_zone_chunk* head; +} msgpack_zone_chunk_list; + +typedef struct msgpack_zone { + msgpack_zone_chunk_list chunk_list; + msgpack_zone_finalizer_array finalizer_array; + size_t chunk_size; +} msgpack_zone; + +#ifndef MSGPACK_ZONE_CHUNK_SIZE +#define MSGPACK_ZONE_CHUNK_SIZE 8192 +#endif + +MSGPACK_DLLEXPORT +bool msgpack_zone_init(msgpack_zone* zone, size_t chunk_size); +MSGPACK_DLLEXPORT +void msgpack_zone_destroy(msgpack_zone* zone); + +MSGPACK_DLLEXPORT +msgpack_zone* msgpack_zone_new(size_t chunk_size); +MSGPACK_DLLEXPORT +void msgpack_zone_free(msgpack_zone* zone); + +static inline void* msgpack_zone_malloc(msgpack_zone* zone, size_t size); +static inline void* msgpack_zone_malloc_no_align(msgpack_zone* zone, size_t size); + +static inline bool msgpack_zone_push_finalizer(msgpack_zone* zone, + void (*func)(void* data), void* data); + +static inline void msgpack_zone_swap(msgpack_zone* a, msgpack_zone* b); + +MSGPACK_DLLEXPORT +bool msgpack_zone_is_empty(msgpack_zone* zone); + +MSGPACK_DLLEXPORT +void msgpack_zone_clear(msgpack_zone* zone); + +/** @} */ + + +#ifndef MSGPACK_ZONE_ALIGN +#define MSGPACK_ZONE_ALIGN sizeof(void*) +#endif + +MSGPACK_DLLEXPORT +void* msgpack_zone_malloc_expand(msgpack_zone* zone, size_t size); + +static inline void* msgpack_zone_malloc_no_align(msgpack_zone* zone, size_t size) +{ + char* ptr; + msgpack_zone_chunk_list* cl = &zone->chunk_list; + + if(zone->chunk_list.free < size) { + return msgpack_zone_malloc_expand(zone, size); + } + + ptr = cl->ptr; + cl->free -= size; + cl->ptr += size; + + return ptr; +} + +static inline void* msgpack_zone_malloc(msgpack_zone* zone, size_t size) +{ + char* aligned = + (char*)( + (size_t)( + zone->chunk_list.ptr + (MSGPACK_ZONE_ALIGN - 1) + ) / MSGPACK_ZONE_ALIGN * MSGPACK_ZONE_ALIGN + ); + size_t adjusted_size = size + (aligned - zone->chunk_list.ptr); + if(zone->chunk_list.free >= adjusted_size) { + zone->chunk_list.free -= adjusted_size; + zone->chunk_list.ptr += adjusted_size; + return aligned; + } + { + void* ptr = msgpack_zone_malloc_expand(zone, size + (MSGPACK_ZONE_ALIGN - 1)); + if (ptr) { + return (char*)((size_t)(ptr) / MSGPACK_ZONE_ALIGN * MSGPACK_ZONE_ALIGN); + } + } + return NULL; +} + + +bool msgpack_zone_push_finalizer_expand(msgpack_zone* zone, + void (*func)(void* data), void* data); + +static inline bool msgpack_zone_push_finalizer(msgpack_zone* zone, + void (*func)(void* data), void* data) +{ + msgpack_zone_finalizer_array* const fa = &zone->finalizer_array; + msgpack_zone_finalizer* fin = fa->tail; + + if(fin == fa->end) { + return msgpack_zone_push_finalizer_expand(zone, func, data); + } + + fin->func = func; + fin->data = data; + + ++fa->tail; + + return true; +} + +static inline void msgpack_zone_swap(msgpack_zone* a, msgpack_zone* b) +{ + msgpack_zone tmp = *a; + *a = *b; + *b = tmp; +} + + +#ifdef __cplusplus +} +#endif + +#endif /* msgpack/zone.h */ |