guicast/sema.h

   1 #ifndef SEMA_H
   2 #define SEMA_H
   3
   4
   5 #include <semaphore.h>
   6
   7 class Sema
   8 {
   9 public:
  10         Sema(int init_value = 1, char *title = 0);
  11         ~Sema();
  12
  13         void lock(char *location = 0);
  14         void unlock();
  15         int get_value();
  16         void reset();
  17
  18         sem_t sem;
  19         char *title;
  20         int init_value;
  21 };
  22
  23
  24
  25
  26
  27
  28
  29
  30 #if 0
  31
  32
  33 #include <stdio.h>
  34 #include <stdlib.h>
  35 #include <sys/ipc.h>
  36 #include <sys/sem.h>
  37 #include <sys/types.h>
  38
  39 union semun {
  40    int val; /* used for SETVAL only */
  41    struct semid_ds *buf; /* for IPC_STAT and IPC_SET */
  42    ushort *array;  /* used for GETALL and SETALL */
  43 };
  44
  45 class Sema
  46 {
  47 public:
  48         Sema(int id = -1, int number = 1);
  49         ~Sema();
  50
  51         int lock(int number = 0);
  52         int unlock(int number = 0);
  53         int get_value(int number = 0);
  54         int get_id();
  55
  56         int semid;
  57         int client;
  58         int semas;
  59         semun arg;
  60 };
  61
  62 #endif
  63
  64
  65
  66
  67
  68 #endif