Function sys_fork 

#[unsafe(no_mangle)]
pub extern "C" fn sys_fork() -> i32

Available on crate feature export-syscalls only.

sys_fork() creates a new process by duplicating the calling process. The new process is referred to as the child process. The calling process is referred to as the parent process.

The child process and the parent process run in separate memory spaces. At the time of sys_fork() both memory spaces have the same content.

Return Value

On success, the PID of the child process (1) is returned in the parent, and 0 is returned in the child. On failure, -1 is returned in the parent, no child process is created.