mmserv.cpp File Reference

#include <Mm\shm.h>
#include <Mm\vmmngr.h>
#include <Mm\pmmngr.h>
#include <_null.h>
#include <Mm\kmalloc.h>
#include <aucon.h>
#include <Hal\x86_64_lowlevel.h>
#include <Hal\serial.h>

Include dependency graph for mmserv.cpp:

Functions
int	CreateSharedMem (uint16_t key, size_t sz, uint8_t flags)
	CreateSharedMem – create a shared memory chunk.
void *	ObtainSharedMem (uint16_t id, void *shmaddr, int shmflg)
	ObtainSharedMem – obtain a shared memory.
void	UnmapSharedMem (uint16_t key)
	UnmapSharedMem – unmap shared memory segment.
uint64_t	GetProcessHeapMem (size_t sz)
	GetProcessHeapMem – get a memory from process heap.
int	ProcessHeapUnmap (void *ptr, size_t sz)
	ProcessHeapUnmap – unmaps previosly allocated heap memory.

Function Documentation

CreateSharedMem()

int CreateSharedMem	(	uint16_t	key,
		size_t	sz,
		uint8_t	flags
	)

CreateSharedMem – create a shared memory chunk.

BSD 2-Clause License

Copyright (c) 2022-2023, 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.

GetProcessHeapMem()

uint64_t GetProcessHeapMem

(

size_t

sz

)

GetProcessHeapMem – get a memory from process heap.

ObtainSharedMem()

void * ObtainSharedMem	(	uint16_t	id,
		void *	shmaddr,
		int	shmflg
	)

ObtainSharedMem – obtain a shared memory.

Parameters

id	– segment id
shmaddr	– user specified address
shmflg	– flags to use for protection

ProcessHeapUnmap()

int ProcessHeapUnmap	(	void *	ptr,
		size_t	sz
	)

ProcessHeapUnmap – unmaps previosly allocated heap memory.

Parameters

ptr	– Pointer to freeable address
sz	– size in bytes to unallocate

UnmapSharedMem()

void UnmapSharedMem

(

uint16_t

key

)

UnmapSharedMem – unmap shared memory segment.

Parameters

key	– key to search