36cac270be
2001-04-26 Not Zed <NotZed@Ximian.com> * e-memory.c (e_poolv_get): Modified to match e_strv_get behaviour. Assert on bad cases, and return "" rather than NULL for empty/unset strings. (e_poolv_new): Simplify the mutex cases, only have a single mutex for mempool and hashtable references. (e_poolv_set): Simplify mutex code. Fixed a #ifdef orde prob in profile stuff. Always copy string to our own memory when we add it to the hash, even if we free it; I think this would have led to dangling references otherwise. (e_poolv_destroy): Renamed from poolv_free, for consistency with the rest of the allocators here. (e_poolv_set): Add optional refcounting code here, not currently enabled/used, but should make proper string collection work easily. (e_poolv_destroy): Unrefcount the strings here. (e_poolv_cpy): Add refcounting code here. * e-memory.[ch]: Applied Jacob's patches <jacob@ximian.com> for 'e-poolv' type, added his name to the authors list. svn path=/trunk/; revision=9570
76 lines
3.0 KiB
C
76 lines
3.0 KiB
C
/*
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* Copyright (C) 2001, Helix Code Inc.
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*
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* Authors: Michael Zucchi <notzed@ximian.com>
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* Jacob Berkman <jacob@ximian.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA
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*/
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#ifndef _E_MEMORY_H
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#define _E_MEMORY_H
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/* memchunks - allocate/free fixed-size blocks of memory */
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/* this is like gmemchunk, only faster and less overhead (only 4 bytes for every atomcount allocations) */
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typedef struct _EMemChunk EMemChunk;
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EMemChunk *e_memchunk_new(int atomcount, int atomsize);
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void *e_memchunk_alloc(EMemChunk *m);
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void *e_memchunk_alloc0(EMemChunk *m);
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void e_memchunk_free(EMemChunk *m, void *mem);
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void e_memchunk_empty(EMemChunk *m);
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void e_memchunk_clean(EMemChunk *m);
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void e_memchunk_destroy(EMemChunk *m);
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/* mempools - allocate variable sized blocks of memory, and free as one */
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/* allocation is very fast, but cannot be freed individually */
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typedef struct _EMemPool EMemPool;
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typedef enum {
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E_MEMPOOL_ALIGN_STRUCT = 0, /* allocate to native structure alignment */
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E_MEMPOOL_ALIGN_WORD = 1, /* allocate to words - 16 bit alignment */
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E_MEMPOOL_ALIGN_BYTE = 2, /* allocate to bytes - 8 bit alignment */
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E_MEMPOOL_ALIGN_MASK = 3, /* which bits determine the alignment information */
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} EMemPoolFlags;
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EMemPool *e_mempool_new(int blocksize, int threshold, EMemPoolFlags flags);
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void *e_mempool_alloc(EMemPool *pool, int size);
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char *e_mempool_strdup(EMemPool *pool, const char *str);
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void e_mempool_flush(EMemPool *pool, int freeall);
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void e_mempool_destroy(EMemPool *pool);
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/* strv's string arrays that can be efficiently modified and then compressed mainly for retrival */
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/* building is relatively fast, once compressed it takes the minimum amount of memory possible to store */
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typedef struct _EStrv EStrv;
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EStrv *e_strv_new(int size);
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EStrv *e_strv_set_ref(EStrv *strv, int index, char *str);
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EStrv *e_strv_set_ref_free(EStrv *strv, int index, char *str);
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EStrv *e_strv_set(EStrv *strv, int index, const char *str);
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EStrv *e_strv_pack(EStrv *strv);
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char *e_strv_get(EStrv *strv, int index);
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void e_strv_destroy(EStrv *strv);
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/* poolv's are similar to strv's, but they store common strings */
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typedef struct _EPoolv EPoolv;
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EPoolv *e_poolv_new(unsigned int size);
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EPoolv *e_poolv_cpy(EPoolv *dest, const EPoolv *src);
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EPoolv *e_poolv_set(EPoolv *poolv, int index, char *str, int freeit);
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const char *e_poolv_get(EPoolv *poolv, int index);
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void e_poolv_destroy(EPoolv *poolv);
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#endif /* ! _E_MEMORY_H */
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