I have a global variable, X. I then fork and modify X from the child. I want those changes to show up in the parent, but I don’t want the parent to have to wait on the child.
How can I do this?
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I have a global variable, X. I then fork and modify X from the child. I want those changes to show up in the parent, but I don’t want the parent to have to wait on the child.
How can I do this?
You need to put the variable in shared memory. There are many ways to create shared memory. I’d probably just use
mmap, but you could also check outshmgetorshm_open.