usr/src/cmd/ndmpd/include/cstack.h

   1 /*
   2  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
   3  * Use is subject to license terms.
   4  */
   5
   6 /*
   7  * BSD 3 Clause License
   8  *
   9  * Copyright (c) 2007, The Storage Networking Industry Association.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  *      - Redistributions of source code must retain the above copyright
  15  *        notice, this list of conditions and the following disclaimer.
  16  *
  17  *      - Redistributions in binary form must reproduce the above copyright
  18  *        notice, this list of conditions and the following disclaimer in
  19  *        the documentation and/or other materials provided with the
  20  *        distribution.
  21  *
  22  *      - Neither the name of The Storage Networking Industry Association (SNIA)
  23  *        nor the names of its contributors may be used to endorse or promote
  24  *        products derived from this software without specific prior written
  25  *        permission.
  26  *
  27  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  28  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  29  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  30  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  31  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  32  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  33  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  34  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  35  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  36  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  37  * POSSIBILITY OF SUCH DAMAGE.
  38  */
  39
  40 /*
  41  * Interface definition for the list based stack class. The stack only
  42  * holds pointers/references to application objects. The objects are not
  43  * copied and the stack never attempts to dereference or access the data
  44  * objects. Applications should treat cstack_t references as opaque
  45  * handles.
  46  */
  47
  48 #ifndef _CSTACK_H_
  49 #define _CSTACK_H_
  50
  51
  52 #ifdef __cplusplus
  53 extern "C" {
  54 #endif
  55
  56
  57 typedef struct cstack {
  58         struct cstack *next;
  59         void *data;
  60         int len;
  61 } cstack_t;
  62
  63
  64 cstack_t *cstack_new(void);
  65 void cstack_delete(cstack_t *);
  66 int cstack_push(cstack_t *, void *, int);
  67 int cstack_pop(cstack_t *, void **, int *);
  68 int cstack_top(cstack_t *, void **, int *);
  69
  70
  71 #ifdef __cplusplus
  72 }
  73 #endif
  74
  75
  76 #endif /* _CSTACK_H_ */