mirror of
https://github.com/pruten/shoebill.git
synced 2024-10-08 05:56:29 +00:00
9f0e6ed115
- Converted condition-code + physical_get/set switch statements to jump tables - Moved the pmmu_cache lookup code out of translate_logical_addr - Broke MOVE into move-to-datareg, -from-datareg, and datareg-to-datareg - Fixed UFS code to ignore high 32 bits of inode size (it sometimes contains garbage) - Support for zero-length reads in scsi.c + 256kb read/write buffer - pushing interrupt stack frames now actually changes the priority mask - Updated the READMEs, screencaps for 0.0.2
95 lines
2.8 KiB
C
95 lines
2.8 KiB
C
/*
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* Copyright (c) 2014, Peter Rutenbar <pruten@gmail.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdlib.h>
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#include <assert.h>
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#include <stdint.h>
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#include "../core/shoebill.h"
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/*typedef struct _alloc_pool_t {
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struct _alloc_pool_t *prev, *next;
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uint32_t size, magic;
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} alloc_pool_t;*/
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void* p_alloc(alloc_pool_t *pool, uint64_t size)
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{
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alloc_pool_t *buf = calloc(sizeof(alloc_pool_t) + size, 1);
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buf->size = size;
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buf->magic = 'moof';
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buf->next = pool->next;
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buf->prev = pool;
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if (pool->next)
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pool->next->prev = buf;
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pool->next = buf;
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return &buf[1];
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}
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void* p_realloc(void *ptr, uint64_t size)
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{
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alloc_pool_t *header = &((alloc_pool_t*)ptr)[-1];
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alloc_pool_t *new_header = realloc(header, size + sizeof(alloc_pool_t));
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if (new_header)
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return &new_header[1];
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return NULL;
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}
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void p_free(void *ptr)
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{
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alloc_pool_t *header = &((alloc_pool_t*)ptr)[-1];
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assert(header->magic == 'moof');
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if (header->next)
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header->next->prev = header->prev;
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if (header->prev)
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header->prev->next = header->next;
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free(header);
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}
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void p_free_pool(alloc_pool_t *pool)
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{
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while (pool->prev)
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pool = pool->prev;
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while (pool) {
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alloc_pool_t *cur = pool;
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pool = cur->next;
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assert(cur->magic == 'moof');
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free(cur);
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}
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}
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alloc_pool_t* p_new_pool(void)
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{
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alloc_pool_t *pool = calloc(sizeof(alloc_pool_t), 1);
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pool->magic = 'moof';
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return pool;
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} |