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/*
+----------------------------------------------------------------------+
| Swoole |
+----------------------------------------------------------------------+
| This source file is subject to version 2.0 of the Apache license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.apache.org/licenses/LICENSE-2.0.html |
| If you did not receive a copy of the Apache2.0 license and are unable|
| to obtain it through the world-wide-web, please send a note to |
| license@swoole.com so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: Tianfeng Han <rango@swoole.com> |
| Twosee <twose@qq.com> |
+----------------------------------------------------------------------+
*/
#pragma once
#include "swoole.h"
//-------------------memory manager-------------------------
namespace swoole {
class MemoryPool {
public:
virtual ~MemoryPool(){};
virtual void *alloc(uint32_t size) = 0;
virtual void free(void *ptr) = 0;
protected:
MemoryPool(){};
};
struct FixedPoolImpl;
class FixedPool : public MemoryPool {
private:
FixedPoolImpl *impl;
public:
FixedPool(uint32_t slice_num, uint32_t slice_size, bool shared);
FixedPool(uint32_t slice_size, void *memory, size_t size, bool shared);
~FixedPool();
void *alloc(uint32_t size);
void free(void *ptr);
void debug(int max_lines = 100);
uint32_t get_number_of_spare_slice();
uint32_t get_number_of_total_slice();
uint32_t get_slice_size();
static size_t sizeof_struct_slice();
static size_t sizeof_struct_impl();
};
struct RingBufferImpl;
// RingBuffer, In order for malloc / free
class RingBuffer : public MemoryPool {
private:
RingBufferImpl *impl;
public:
RingBuffer(uint32_t size, bool shared);
~RingBuffer();
void *alloc(uint32_t size);
void free(void *ptr);
};
struct GlobalMemoryImpl;
// Global memory, the program life cycle only malloc / free one time
class GlobalMemory : public MemoryPool {
private:
GlobalMemoryImpl *impl;
public:
GlobalMemory(uint32_t page_size, bool shared);
~GlobalMemory();
void *alloc(uint32_t size);
void free(void *ptr);
void destroy();
size_t capacity();
size_t get_memory_size();
};
} // namespace swoole
void *sw_shm_malloc(size_t size);
void sw_shm_free(void *ptr);
void *sw_shm_calloc(size_t num, size_t _size);
int sw_shm_protect(void *ptr, int flags);
void *sw_shm_realloc(void *ptr, size_t new_size);
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