30 lines · c
1// SPDX-License-Identifier: LGPL-2.12#include <sys/types.h>3#include <sys/wait.h>4 5static size_t syscall_arg__scnprintf_waitid_options(char *bf, size_t size,6 struct syscall_arg *arg)7{8 bool show_prefix = arg->show_string_prefix;9 const char *prefix = "W";10 int printed = 0, options = arg->val;11 12#define P_OPTION(n) \13 if (options & W##n) { \14 printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", #n); \15 options &= ~W##n; \16 }17 18 P_OPTION(NOHANG);19 P_OPTION(UNTRACED);20 P_OPTION(CONTINUED);21#undef P_OPTION22 23 if (options)24 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", options);25 26 return printed;27}28 29#define SCA_WAITID_OPTIONS syscall_arg__scnprintf_waitid_options30