usr/src/lib/mergeq/workq.h

   1 /*
   2  * This file and its contents are supplied under the terms of the
   3  * Common Development and Distribution License ("CDDL"), version 1.0.
   4  * You may only use this file in accordance with the terms of version
   5  * 1.0 of the CDDL.
   6  *
   7  * A full copy of the text of the CDDL should have accompanied this
   8  * source.  A copy of the CDDL is also available via the Internet at
   9  * http://www.illumos.org/license/CDDL.
  10  */
  11
  12 /*
  13  * Copyright 2015 Joyent, Inc.
  14  */
  15
  16 #ifndef _WORKQ_H
  17 #define _WORKQ_H
  18
  19 /*
  20  * workq library routines
  21  */
  22
  23 #include <sys/types.h>
  24 #include <stdint.h>
  25
  26 #ifdef __cplusplus
  27 extern "C" {
  28 #endif
  29
  30 typedef struct workq workq_t;
  31 typedef int (workq_proc_f)(void *, void *);
  32
  33 extern int workq_init(workq_t **, uint_t);
  34 extern void workq_fini(workq_t *);
  35
  36 extern int workq_add(workq_t *, void *);
  37
  38 #define WORKQ_ERROR     (-1)
  39 #define WORKQ_UERROR    (-2)
  40 extern int workq_work(workq_t *, workq_proc_f *, void *, int *);
  41
  42 /*
  43  * Routines consumers need to implement
  44  */
  45 extern void *workq_alloc(size_t);
  46 extern void workq_free(void *, size_t);
  47
  48 #ifdef __cplusplus
  49 }
  50 #endif
  51
  52 #endif /* _WORKQ_H */