[project @ 2005-05-11 20:33:25 by bursa]

Remove no longer used memory pool code.

svn path=/import/netsurf/; revision=1720

2 files changed, 0 insertions, 240 deletions

diff --git a/utils/pool.c b/utils/pool.c
deleted file mode 100644
index 5f08e7591..000000000
--- a/utils/pool.c
+++ /dev/null
@@ -1,202 +0,0 @@
-/*
- * This file is part of NetSurf, http://netsurf.sourceforge.net/
- * Licensed under the GNU General Public License,
- *                http://www.opensource.org/licenses/gpl-license
- * Copyright 2003 James Bursa <bursa@users.sourceforge.net>
- */
-
-/** \file
- * Memory pool manager (implementation).
- *
- * A memory pool is implemented as a linked list of blocks. The current
- * position and end of the last block are stored for fast access, so that
- * pool_alloc() can allocate space very fast if available.
- */
-
-#include <assert.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include "netsurf/utils/pool.h"
-
-struct pool_block {
-	char desc[20];
-	struct pool_block *prev;
-};
-
-struct pool {
-	struct pool_block *last_block;
-	char *current_pos;
-	char *end;
-	size_t block_size;
-	unsigned int block_count;
-};
-
-
-/**
- * Create a memory pool.
- *
- * \param block_size suggested size of each block
- * \return opaque pool handle, 0 on failure
- */
-
-pool pool_create(size_t block_size)
-{
-	pool p;
-	struct pool_block *b;
-
-	p = malloc(sizeof *p);
-	if (!p)
-		return 0;
-	b = malloc(sizeof *b + block_size + 8);
-	if (!b) {
-		free(p);
-		return 0;
-	}
-
-	p->last_block = b;
-	p->current_pos = (char *) b + sizeof *b;
-	p->end = (char *) b + sizeof *b + block_size;
-	p->block_size = block_size;
-	p->block_count = 0;
-
-	sprintf(b->desc, "POOL %p %u", p, p->block_count++);
-	b->prev = 0;
-	strcpy(p->end, "POOLEND");
-
-	return p;
-}
-
-
-/**
- * Frees a memory pool.
- *
- * \param p a memory pool handle as returned by pool_create()
- */
-
-void pool_destroy(pool p)
-{
-	struct pool_block *b, *prev;
-	for (b = (struct pool_block *) p->last_block; b; b = prev) {
-		prev = b->prev;
-		free(b);
-	}
-	free(p);
-}
-
-
-/**
- * Allocates space from a memory pool.
- *
- * \param p a memory pool handle as returned by pool_create()
- * \param size number of bytes to allocate
- * \return pointer to the space in the pool, 0 on failure
- */
-
-void *pool_alloc(pool p, size_t size)
-{
-	void *r;
-
-	if (p->end < p->current_pos + size) {
-		/* insufficient space: allocate new block */
-		struct pool_block *b;
-		size_t block_size = p->block_size;
-		if (block_size < size)
-			block_size += size;
-		b = malloc(sizeof *b + block_size + 8);
-		if (!b)
-			return 0;
-
-		sprintf(b->desc, "POOL %p %u", p, p->block_count++);
-		b->prev = p->last_block;
-		strcpy(p->end, "POOLEND");
-		
-		p->last_block = b;
-		p->current_pos = (char *) b + sizeof *b;
-		p->end = (char *) b + sizeof *b + block_size;
-	}
-
-	r = p->current_pos;
-	p->current_pos += size;
-	return r;
-}
-
-
-/**
- * Copies a string into a memory pool.
- *
- * \param p a memory pool handle as returned by pool_create()
- * \param s zero-terminated character string
- * \return pointer to the string in the pool, 0 on failure
- */
-
-char *pool_string(pool p, const char *s)
-{
-	size_t len = strlen(s);
-	char *buf = pool_alloc(p, len);
-	if (!buf)
-		return 0;
-
-	memcpy(buf, s, len + 1);
-	return buf;
-}
-
-
-#ifdef TEST
-
-int main(void)
-{
-	unsigned int i;
-	pool p1, p2;
-
-	puts("testing pool_create()");
-	p1 = pool_create(10000);
-	assert(p1);
-	p2 = pool_create(1000);
-	assert(p2);
-
-	puts("testing pool_alloc()");
-	for (i = 0; i != 100000; i++) {
-		size_t s = random() % 200;
-		char *b1, *b2;
-		unsigned int j;
-
-		b1 = pool_alloc(p1, s);
-		//b1 = malloc(s);
-		assert(b1);
-		b2 = pool_alloc(p2, s);
-		//b2 = malloc(s);
-		assert(b2);
-		for (j = 0; j != s; j++)
-			b1[j] = b2[j] = i % 256;
-	}
-
-	puts("testing pool_string()");
-	for (i = 0; i != 10000; i++) {
-		size_t s = random() % 200;
-		char str[201];
-		unsigned int j;
-		char *b;
-
-		for (j = 0; j != s; j++)
-			str[j] = 'A' + j % 26;
-		str[s] = 0;
-		
-		b = pool_string(p1, str);
-		//b = strdup(str);
-		assert(b);
-		assert(strcmp(str, b) == 0);
-	}
-
-	puts("testing pool_destroy() (press enter)");
-	getc(stdin);
-
-	pool_destroy(p1);
-	pool_destroy(p2);
-
-	puts("done");
-	return 0;
-}
-
-#endif
-
diff --git a/utils/pool.h b/utils/pool.h
deleted file mode 100644
index 4dceb3f47..000000000
--- a/utils/pool.h
+++ /dev/null
@@ -1,38 +0,0 @@
-/*
- * This file is part of NetSurf, http://netsurf.sourceforge.net/
- * Licensed under the GNU General Public License,
- *                http://www.opensource.org/licenses/gpl-license
- * Copyright 2003 James Bursa <bursa@users.sourceforge.net>
- */
-
-/** \file
- * Memory pool manager (interface).
- *
- * A memory pool is intended for allocating memory which is required in small
- * blocks and all released together. It avoids the overhead of many small
- * malloc()s.
- *
- * Create a pool using pool_create(), and allocate memory from it using
- * pool_alloc() and pool_string(). Destroy and free the entire pool using
- * pool_destroy().
- *
- * The suggested block size should be large enough to store many allocations.
- * Use a multiple of the size of contents, if fixed. Larger allocations than
- * the block size are possible.
- */
-
-#ifndef _NETSURF_UTILS_POOL_H_
-#define _NETSURF_UTILS_POOL_H_
-
-#include <stdlib.h>
-
-/** Opaque memory pool handle. */
-typedef struct pool *pool;
-
-pool pool_create(size_t block_size);
-void pool_destroy(pool p);
-void *pool_alloc(pool p, size_t size);
-char *pool_string(pool p, const char *s);
-
-#endif
-