_procheap.cpp File Reference

#include <stdlib.h>
#include <stdio.h>
#include <sys/_keproc.h>
#include <sys/_heap.h>
#include <sys/mman.h>

Include dependency graph for _procheap.cpp:

Macros
#define	PROC_HEAP_AREA_DEFAULT_SZ   (16*4096)
#define	PAGE_ALIGN(value)   (((PAGE_SIZE-1)&value) ? ((value + PAGE_SIZE) & ~(PAGE_SIZE-1)) : value)

Functions
void	ProcCreateHeapArea (size_t sz)
	_ProcCreateHeap – create a new process heap area
void	_ProcHeapAreaDestroy ()
	_ProcHeapAreaDestroy – destroy entire heap area
void	_ProcHeapAreaExpand (int sz)
uint64_t	_ProcGetHeapMem (size_t sz)
	_ProcGetHeapMem – returns a heap memory from process heap area
void	_ProcHeapMemUnmap (void *ptr, size_t sz)

Variables
bool	_initialized = 0

Macro Definition Documentation

PAGE_ALIGN

#define PAGE_ALIGN

(

value

)

(((PAGE_SIZE-1)&value) ? ((value + PAGE_SIZE) & ~(PAGE_SIZE-1)) : value)

PROC_HEAP_AREA_DEFAULT_SZ

#define PROC_HEAP_AREA_DEFAULT_SZ   (16*4096)

BSD 2-Clause License

Copyright (c) 2023-2024, Manas Kamal Choudhury All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Function Documentation

_ProcGetHeapMem()

uint64_t _ProcGetHeapMem

(

size_t

sz

)

_ProcGetHeapMem – returns a heap memory from process heap area

Parameters

sz	– size in bytes

_ProcHeapAreaDestroy()

void _ProcHeapAreaDestroy

(

)

_ProcHeapAreaDestroy – destroy entire heap area

_ProcHeapAreaExpand()

void _ProcHeapAreaExpand

(

int

sz

)

_ProcHeapMemUnmap()

void _ProcHeapMemUnmap	(	void *	ptr,
		size_t	sz
	)

ProcCreateHeapArea()

void ProcCreateHeapArea

(

size_t

sz

)

_ProcCreateHeap – create a new process heap area

Parameters

sz	– size to create by default

Variable Documentation

_initialized

bool _initialized = 0