1 // SPDX-License-Identifier: LGPL-2.1
2 #ifndef EFD_SEMAPHORE
3 #define EFD_SEMAPHORE 1
4 #endif
5
6 #ifndef EFD_NONBLOCK
7 #define EFD_NONBLOCK 00004000
8 #endif
9
10 #ifndef EFD_CLOEXEC
11 #define EFD_CLOEXEC 02000000
12 #endif
13
14 static size_t syscall_arg__scnprintf_eventfd_flags(char *bf, size_t size, struct syscall_arg *arg)
15 {
16 bool show_prefix = arg->show_string_prefix;
17 const char *prefix = "EFD_";
18 int printed = 0, flags = arg->val;
19
20 if (flags == 0)
21 return scnprintf(bf, size, "NONE");
22 #define P_FLAG(n) \
23 if (flags & EFD_##n) { \
24 printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", #n); \
25 flags &= ~EFD_##n; \
26 }
27
28 P_FLAG(SEMAPHORE);
29 P_FLAG(CLOEXEC);
30 P_FLAG(NONBLOCK);
31 #undef P_FLAG
32
33 if (flags)
34 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
35
36 return printed;
37 }
38
39 #define SCA_EFD_FLAGS syscall_arg__scnprintf_eventfd_flags
40
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