Clone (Linux system call)
- Clone (Linux system call)
clone() is a system call on the Linux kernel related to multithreading.
The syntax for calling clone under a Linux program is: #include int clone (int (*fn) (void *), void *child_stack, int flags, void *arg);clone creates a new thread that starts with the function pointed to by the fn argument (as opposed to fork() which continues with the next command after fork().) The child_stack argument is a pointer to a memory space to be used as the stack for the new thread (which must be malloc'ed before that; on most architectures stack grows down, so the pointer should point at the end of the space), flags specify what gets inherited from the parent process, and arg is the argument passed to the function. It returns the process ID of the child process or -1 on failure.
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