gcc/testsuite/gcc.c-torture/compile/20040708-1.c

   1 /* PR rtl-optimization/16199 */
   2 /* Origin: Olaf Klein <oklein@smallo.ruhr.de> */
   3
   4 typedef enum {
   5     APR_LOCK_FCNTL,
   6     APR_LOCK_FLOCK,
   7     APR_LOCK_SYSVSEM,
   8     APR_LOCK_PROC_PTHREAD,
   9     APR_LOCK_POSIXSEM,
  10     APR_LOCK_DEFAULT
  11 } apr_lockmech_e;
  12
  13 struct apr_proc_mutex_unix_lock_methods_t {
  14     unsigned int flags;
  15     const char *name;
  16 };
  17
  18 typedef struct apr_proc_mutex_unix_lock_methods_t apr_proc_mutex_unix_lock_methods_t;
  19
  20 extern const apr_proc_mutex_unix_lock_methods_t apr_proc_mutex_unix_sysv_methods;
  21
  22 struct apr_proc_mutex_t {
  23     const apr_proc_mutex_unix_lock_methods_t *inter_meth;
  24     int curr_locked;
  25     char *fname;
  26 };
  27
  28 typedef struct apr_proc_mutex_t apr_proc_mutex_t;
  29
  30 extern const apr_proc_mutex_unix_lock_methods_t apr_proc_mutex_unix_proc_pthread_methods;
  31
  32 extern const apr_proc_mutex_unix_lock_methods_t apr_proc_mutex_unix_fcntl_methods;
  33
  34 static int proc_mutex_choose_method(apr_proc_mutex_t *new_mutex, apr_lockmech_e mech)
  35 {
  36     switch (mech) {
  37     case APR_LOCK_FCNTL:
  38         new_mutex->inter_meth = &apr_proc_mutex_unix_fcntl_methods;
  39         break;
  40     case APR_LOCK_FLOCK:
  41         return ((20000 + 50000) + 23);
  42         break;
  43     case APR_LOCK_SYSVSEM:
  44         new_mutex->inter_meth = &apr_proc_mutex_unix_sysv_methods;
  45         break;
  46     case APR_LOCK_POSIXSEM:
  47         return ((20000 + 50000) + 23);
  48         break;
  49     case APR_LOCK_PROC_PTHREAD:
  50         new_mutex->inter_meth = &apr_proc_mutex_unix_proc_pthread_methods;
  51         break;
  52     case APR_LOCK_DEFAULT:
  53         new_mutex->inter_meth = &apr_proc_mutex_unix_proc_pthread_methods;
  54         break;
  55     default:
  56         return ((20000 + 50000) + 23);
  57     }
  58     return 0;
  59 }
  60
  61 const char* apr_proc_mutex_defname(void)
  62 {
  63     apr_proc_mutex_t mutex;
  64
  65     if (proc_mutex_choose_method(&mutex, APR_LOCK_DEFAULT) != 0) {
  66         return "unknown";
  67     }
  68 }