| /* |
| Copyright (c) 2013 Martin Sustrik All rights reserved. |
| |
| Permission is hereby granted, free of charge, to any person obtaining a copy |
| of this software and associated documentation files (the "Software"), |
| to deal in the Software without restriction, including without limitation |
| the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| and/or sell copies of the Software, and to permit persons to whom |
| the Software is furnished to do so, subject to the following conditions: |
| |
| The above copyright notice and this permission notice shall be included |
| in all copies or substantial portions of the Software. |
| |
| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
| IN THE SOFTWARE. |
| */ |
| |
| #ifndef NN_CHUNK_INCLUDED |
| #define NN_CHUNK_INCLUDED |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| |
| /* Allocates the chunk using the allocation mechanism specified by 'type'. */ |
| int nn_chunk_alloc (size_t size, int type, void **result); |
| |
| /* Resizes a chunk previously allocated with nn_chunk_alloc. */ |
| int nn_chunk_realloc (size_t size, void **chunk); |
| |
| /* Releases a reference to the chunk and once the reference count had dropped |
| to zero, deallocates the chunk. */ |
| void nn_chunk_free (void *p); |
| |
| /* Increases the reference count of the chunk by 'n'. */ |
| void nn_chunk_addref (void *p, uint32_t n); |
| |
| /* Returns size of the chunk buffer. */ |
| size_t nn_chunk_size (void *p); |
| |
| /* Trims n bytes from the beginning of the chunk. Returns pointer to the new |
| chunk. */ |
| void *nn_chunk_trim (void *p, size_t n); |
| |
| #endif |
| |