Re: shared memory

Thanks for your reply, but I afraid you did not get my point. I am talking about shared memory that is used for Interprocess communication. We can access the shared memory created by one C program in other C program and same is the case with php. I am trying to communicate with a C program from php using shared memory, but I did not get it working till now. To be more specific, I want to know 1. Are calls to function ftok() return the same key in both php and C 2. Is the function shmop_open() return the same shared memory as shmget() system call, when we pass the same key to both the functions. Thanks in advance ramana. On Wed, 19 May 2004 15:00:02 +0300, Burhan Khalid <phplist@meidomus.com> wrote: > > > venkata ramana wrote: > > Is the shared memory created with php comaptible with that created > > with a C program? I mean to ask, can we access the data written into > > shared memory by a C program from a php program? > > I would hope not, as this would cause major security problems and system > instability. > > I *believe* once memory has been allocated to a program, it is for its > exclusive use unless released. Two programs cannot share the same stack > space. > > You would also be compromising the data that's in the shared space. > > Burhan >