tools/perf/trace/beauty/flock.c

   1 #include <fcntl.h>
   2
   3 #ifndef LOCK_MAND
   4 #define LOCK_MAND        32
   5 #endif
   6
   7 #ifndef LOCK_READ
   8 #define LOCK_READ        64
   9 #endif
  10
  11 #ifndef LOCK_WRITE
  12 #define LOCK_WRITE      128
  13 #endif
  14
  15 #ifndef LOCK_RW
  16 #define LOCK_RW         192
  17 #endif
  18
  19 static size_t syscall_arg__scnprintf_flock(char *bf, size_t size,
  20                                            struct syscall_arg *arg)
  21 {
  22         int printed = 0, op = arg->val;
  23
  24         if (op == 0)
  25                 return scnprintf(bf, size, "NONE");
  26 #define P_CMD(cmd) \
  27         if ((op & LOCK_##cmd) == LOCK_##cmd) { \
  28                 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #cmd); \
  29                 op &= ~LOCK_##cmd; \
  30         }
  31
  32         P_CMD(SH);
  33         P_CMD(EX);
  34         P_CMD(NB);
  35         P_CMD(UN);
  36         P_CMD(MAND);
  37         P_CMD(RW);
  38         P_CMD(READ);
  39         P_CMD(WRITE);
  40 #undef P_OP
  41
  42         if (op)
  43                 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", op);
  44
  45         return printed;
  46 }
  47
  48 #define SCA_FLOCK syscall_arg__scnprintf_flock