usr/src/uts/common/smbsrv/alloc.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  *
  25  * Copyright 2013 Nexenta Systems, Inc.  All rights reserved.
  26  */
  27
  28 #ifndef _SMBSRV_ALLOC_H
  29 #define _SMBSRV_ALLOC_H
  30
  31 #ifdef __cplusplus
  32 extern "C" {
  33 #endif
  34
  35 /*
  36  * Memory management macros to aid in developing code that can
  37  * be compiled for both user and kernel.
  38  *
  39  * Set the AREA parameter to a short text string that is a hint
  40  * about the subsystem calling the function. example: "smbrdr"
  41  *
  42  * Do not mix usage of these macros with malloc/free functions.
  43  * It will not work.
  44  *
  45  * All library code shared between user and kernel must use
  46  * these functions instead of malloc/free/kmem_*.
  47  *
  48  * Quick Summary
  49  * MEM_MALLOC - allocate memory
  50  * MEM_ZALLOC - allocate and zero memory
  51  * MEM_STRDUP - string copy
  52  * MEM_REALLOC - reallocate memory
  53  * MEM_FREE -  free memory
  54  */
  55
  56 #include <sys/types.h>
  57
  58 #if !defined(_KERNEL) && !defined(_FAKE_KERNEL)
  59 #include <stdlib.h>
  60 #include <string.h>
  61
  62 #define MEM_MALLOC(AREA, SIZE) malloc(SIZE)
  63 #define MEM_ZALLOC(AREA, SIZE) calloc((SIZE), 1)
  64 #define MEM_STRDUP(AREA, PTR) strdup(PTR)
  65 #define MEM_REALLOC(AREA, PTR, SIZE) realloc((PTR), (SIZE))
  66 #define MEM_FREE(AREA, PTR) free(PTR)
  67
  68 #else /* _KERNEL */
  69
  70 void *smb_mem_alloc(size_t);
  71 void *smb_mem_zalloc(size_t);
  72 void smb_mem_free(void *);
  73 char *smb_mem_strdup(const char *);
  74
  75 #define MEM_MALLOC(AREA, SIZE)  smb_mem_alloc(SIZE)
  76 #define MEM_ZALLOC(AREA, SIZE)  smb_mem_zalloc(SIZE)
  77 #define MEM_FREE(AREA, PTR)     smb_mem_free(PTR)
  78
  79 #endif /* _KERNEL */
  80
  81 #ifdef __cplusplus
  82 }
  83 #endif
  84
  85 #endif  /* _SMBSRV_ALLOC_H */