tube.h

   1 /* tube.h - tubes header */
   2
   3 /* Copyright (C) 2008 Keith Rarick and Philotic Inc.
   4
   5  * This program is free software: you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation, either version 3 of the License, or
   8  * (at your option) any later version.
   9
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #ifndef tube_h
  20 #define tube_h
  21
  22 typedef struct tube *tube;
  23
  24 typedef void(*evh)(int, short, void *);
  25
  26 #include "stat.h"
  27 #include "job.h"
  28 #include "pq.h"
  29 #include "ms.h"
  30
  31 #define MAX_TUBE_NAME_LEN 201
  32
  33 struct tube {
  34     unsigned int refs;
  35     char name[MAX_TUBE_NAME_LEN];
  36     struct pq ready;
  37     struct pq delay;
  38     struct job buried;
  39     struct ms waiting; /* set of conns */
  40     struct stats stat;
  41     unsigned int using_ct;
  42     unsigned int watching_ct;
  43     usec pause;
  44     usec deadline_at;
  45 };
  46
  47 extern struct ms tubes;
  48
  49 tube make_tube(const char *name);
  50 void tube_dref(tube t);
  51 void tube_iref(tube t);
  52 tube tube_find(const char *name);
  53 tube tube_find_or_make(const char *name);
  54 #define TUBE_ASSIGN(a,b) (tube_dref(a), (a) = (b), tube_iref(a))
  55
  56 #endif /*tube_h*/