arch/x86_64/bits/wait.h


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#define WNOHANG    1
#define WUNTRACED  2

#define WSTOPPED   2
#define WEXITED    4
#define WCONTINUED 8
#define WNOWAIT    0x1000000

#define P_ALL  0
#define P_PID  1
#define P_PGID 2