Large (95MB) memory buffer allocation under Solaris

[Sudmill]

Hi,

I have a conversion issue, and as I havent programmed for Sun Solaris before Im a little stuck!
The following code allocates a large memory structure under windows;


hMyBufferHandle = HeapCreate(0, lSize, 0);
if(hMyBufferHandle == NULL)
printf("Error"
lpBuffer = VirtualAlloc(NULL,lSize, MEM_COMMIT,PAGE_READWRITE);


(If you spot any issues with this let me know!)

How do I do the same undex UNIX (Solaris 2.6) ? I need to be able to hold upto 95 Mb of data in this buffer.
I shall be using the gcc compiler if this helps ?!?!

Thanks alot for anyones time they spend looking at this.

Gratefully,

John.

 

[rbobbitt]

You'll probably be able to do it using malloc(), given that you have enough memory:

#include <stdlib.h>

/* ... */

char *foo=malloc(95000000);
if (foo==NULL) {
/* error, couldn't allocate */
}

Russ
bobbitts@hotmail.com

http://home.earthlink.net/~bobbitts

 

[Sudmill]

Cheers Russ,

Wasnt sure about UNIX, but thought that might be the way.
THanks for all your knowledgable and valueable assistance.

Most appreciated !

 

[abp]

Hi Sudmill,

Since your memory is of the order of 1 Gb I suggest that
you use memory mapping on Solaris. Mallocing out so much memory may not work when other memory-hungry applications are also running.

This link tells more about memory mapped buffers in Solaris.

http://www.elementkjournals.com/sun/0012/sun00c1.htm

Hope this helps.

abp

 

[Sudmill]

Thanks alot guys !
Much appreciated !

John.