ref: 1fc37685fd10a06a75bab2f6a147dd6e810b2b7f
dir: /include/bits/openbsd/amd64/arch/sigaction.h/
typedef unsigned int sigset_t;
typedef struct siginfo siginfo_t;
struct sigaction {
union {
void (*__sa_handler)(int);
void (*__sa_sigaction)(int, siginfo_t *, void *);
} __sigaction_u;
sigset_t sa_mask;
int sa_flags;
};
#define sa_handler __sigaction_u.__sa_handler
#define sa_sigaction __sigaction_u.__sa_sigaction