trace/beauty/waitid_options.c

0001 // SPDX-License-Identifier: LGPL-2.1
0002 #include <sys/types.h>
0003 #include <sys/wait.h>
0004
0005 static size_t syscall_arg__scnprintf_waitid_options(char *bf, size_t size,
0006                             struct syscall_arg *arg)
0007 {
0008     bool show_prefix = arg->show_string_prefix;
0009     const char *prefix = "W";
0010     int printed = 0, options = arg->val;
0011
0012 #define P_OPTION(n) \
0013     if (options & W##n) { \
0014         printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "",  #n); \
0015         options &= ~W##n; \
0016     }
0017
0018     P_OPTION(NOHANG);
0019     P_OPTION(UNTRACED);
0020     P_OPTION(CONTINUED);
0021 #undef P_OPTION
0022
0023     if (options)
0024         printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", options);
0025
0026     return printed;
0027 }
0028
0029 #define SCA_WAITID_OPTIONS syscall_arg__scnprintf_waitid_options