sigposix.h

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C头文件 代码 · 共 20 行

#if 0 // This blows up in sigaction() for some reason
#define _NSIG       128
#define _NSIG_BPW   (sizeof(unsigned long) * 8)
#define _NSIG_WORDS (_NSIG / _NSIG_BPW)
#else
#define _NSIG_WORDS 2
#endif

typedef struct {
    unsigned long sig[_NSIG_WORDS];
} sigset_t;

typedef unsigned long old_sigset_t;     /* at least 32 bits */

struct sigaction {
    unsigned int    sa_flags;
    __sighandler_t  sa_handler;
    sigset_t        sa_mask;
};