lock_client.h

   1 // lock client interface.
   2
   3 #ifndef lock_client_h
   4 #define lock_client_h
   5
   6 #ifdef __cplusplus
   7
   8 #include <string>
   9 #include "lock_protocol.h"
  10 #include "rpc.h"
  11 #include <vector>
  12
  13 // Client interface to the lock server
  14 class lock_client {
  15  protected:
  16   rpcc *cl;
  17  public:
  18   lock_client(std::string d);
  19   virtual ~lock_client() {};
  20   virtual lock_protocol::status acquire(lock_protocol::lockid_t);
  21   virtual lock_protocol::status release(lock_protocol::lockid_t);
  22   virtual lock_protocol::status stat(lock_protocol::lockid_t);
  23 };
  24
  25 #endif
  26
  27 extern "C" {
  28
  29 struct _t4_lock_client;
  30 typedef struct _t4_lock_client t4_lock_client;
  31
  32 typedef enum {
  33     T4_OK,
  34     T4_RETRY,
  35     T4_RPCERR,
  36     T4_NOENT,
  37     T4_IOERR
  38 } t4_xxstatus;
  39
  40 typedef int t4_status;
  41
  42 typedef unsigned long long t4_lockid_t;
  43
  44 t4_lock_client *t4_lock_client_new(const char *dst);
  45 void t4_lock_client_delete(t4_lock_client *);
  46 t4_status t4_lock_client_acquire(t4_lock_client *, t4_lockid_t);
  47 t4_status t4_lock_client_release(t4_lock_client *, t4_lockid_t);
  48 t4_status t4_lock_client_stat(t4_lock_client *, t4_lockid_t);
  49
  50 }
  51
  52 #endif