man io_closeonexec () - mark a file descriptor non-inheritable
NAME
io_closeonexec - mark a file descriptor non-inheritable
SYNTAX
#include <io.h>
void io_closeonexec(int64 fd);
DESCRIPTION
io_closeonexec marks a file descriptor non-inheritable. It will be automatically closed if the process executes a different one. The descriptor will not be automatically closed when you fork() a new child process, though.
SEE ALSO
io_wait(3), io_canwrite(3)