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Diffstat (limited to 'e-util/e-memory.h')
| -rw-r--r-- | e-util/e-memory.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/e-util/e-memory.h b/e-util/e-memory.h new file mode 100644 index 0000000000..d0c2a0ee3c --- /dev/null +++ b/e-util/e-memory.h @@ -0,0 +1,62 @@ +/* + * Copyright (C) 2000, Helix Code Inc. + * + * Author: Michael Zucchi <notzed@helixcode.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of the + * License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + * USA + */ + +#ifndef _E_MEMORY_H +#define _E_MEMORY_H + +/* memchunks - allocate/free fixed-size blocks of memory */ +/* this is like gmemchunk, only faster and less overhead (only 4 bytes for every atomcount allocations) */ +typedef struct _EMemChunk EMemChunk; + +EMemChunk *e_memchunk_new(int atomcount, int atomsize); +void *e_memchunk_alloc(EMemChunk *m); +void e_memchunk_free(EMemChunk *m, void *mem); +void e_memchunk_empty(EMemChunk *m); +void e_memchunk_clean(EMemChunk *m); +void e_memchunk_destroy(EMemChunk *m); + +/* mempools - allocate variable sized blocks of memory, and free as one */ +/* allocation is very fast, but cannot be freed individually */ +typedef struct _EMemPool EMemPool; +typedef enum { + E_MEMPOOL_ALIGN_STRUCT = 0, /* allocate to native structure alignment */ + E_MEMPOOL_ALIGN_WORD = 1, /* allocate to words - 16 bit alignment */ + E_MEMPOOL_ALIGN_BYTE = 2, /* allocate to bytes - 8 bit alignment */ + E_MEMPOOL_ALIGN_MASK = 3, /* which bits determine the alignment information */ +} EMemPoolFlags; + +EMemPool *e_mempool_new(int blocksize, int threshold, EMemPoolFlags flags); +void *e_mempool_alloc(EMemPool *pool, int size); +void e_mempool_flush(EMemPool *pool, int freeall); +void e_mempool_destroy(EMemPool *pool); + +/* strv's string arrays that can be efficiently modified and then compressed mainly for retrival */ +/* building is relatively fast, once compressed it takes the minimum amount of memory possible to store */ +typedef struct _e_strv EStrv; + +EStrv *e_strv_new(int size); +EStrv *e_strv_set_ref(EStrv *strv, int index, char *str); +EStrv *e_strv_set(EStrv *strv, int index, const char *str); +EStrv *e_strv_pack(EStrv *strv); +char *e_strv_get(EStrv *strv, int index); +void e_strv_destroy(EStrv *strv); + +#endif /* ! _E_MEMORY_H */ |