Parent & child accessing global variable
Posted on 1998-10-19
Okay, I've asked this same question in the usenet comp.unix.programmer newsgroup, but will go into more detail here.
I have a server which waits until it receives requests from clients. When this happens, a fork() occurs and the child process is told to deal with the request. This way, the server can wait for more incoming requests without delay.
I have a global variable which is a linked list of a struct which I have declared, the child process makes alterations to the variable, but these changes are not saved/seen once the child exists - I understand that a child process created with the fork keyword cannot access it's parents data space.
Is there anyway I can somehow overcome this hurdle?
I've been told to send the data from the child to the parent via a pipe, but this would mean that the parent process would have to wait or detect when the child process has finished ...
Thanks in advance.