src/zmalloc.h

   1 /* zmalloc - total amount of allocated memory aware version of malloc()
   2  *
   3  * Copyright (c) 2009-2010, Salvatore Sanfilippo <antirez at gmail dot com>
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions are met:
   8  *
   9  *   * Redistributions of source code must retain the above copyright notice,
  10  *     this list of conditions and the following disclaimer.
  11  *   * Redistributions in binary form must reproduce the above copyright
  12  *     notice, this list of conditions and the following disclaimer in the
  13  *     documentation and/or other materials provided with the distribution.
  14  *   * Neither the name of Redis nor the names of its contributors may be used
  15  *     to endorse or promote products derived from this software without
  16  *     specific prior written permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  19  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  21  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  22  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  28  * POSSIBILITY OF SUCH DAMAGE.
  29  */
  30
  31 #ifndef __ZMALLOC_H
  32 #define __ZMALLOC_H
  33
  34 /* Double expansion needed for stringification of macro values. */
  35 #define __xstr(s) __str(s)
  36 #define __str(s) #s
  37
  38 #if defined(USE_TCMALLOC)
  39 #define ZMALLOC_LIB ("tcmalloc-" __xstr(TC_VERSION_MAJOR) "." __xstr(TC_VERSION_MINOR))
  40 #include <google/tcmalloc.h>
  41 #if (TC_VERSION_MAJOR == 1 && TC_VERSION_MINOR >= 6) || (TC_VERSION_MAJOR > 1)
  42 #define HAVE_MALLOC_SIZE 1
  43 #define zmalloc_size(p) tc_malloc_size(p)
  44 #else
  45 #error "Newer version of tcmalloc required"
  46 #endif
  47
  48 #elif defined(USE_JEMALLOC)
  49 #define ZMALLOC_LIB ("jemalloc-" __xstr(JEMALLOC_VERSION_MAJOR) "." __xstr(JEMALLOC_VERSION_MINOR) "." __xstr(JEMALLOC_VERSION_BUGFIX))
  50 #include <jemalloc/jemalloc.h>
  51 #if (JEMALLOC_VERSION_MAJOR == 2 && JEMALLOC_VERSION_MINOR >= 1) || (JEMALLOC_VERSION_MAJOR > 2)
  52 #define HAVE_MALLOC_SIZE 1
  53 #define zmalloc_size(p) je_malloc_usable_size(p)
  54 #else
  55 #error "Newer version of jemalloc required"
  56 #endif
  57
  58 #elif defined(__APPLE__)
  59 #include <malloc/malloc.h>
  60 #define HAVE_MALLOC_SIZE 1
  61 #define zmalloc_size(p) malloc_size(p)
  62 #endif
  63
  64 #ifndef ZMALLOC_LIB
  65 #define ZMALLOC_LIB "libc"
  66 #endif
  67
  68 void *zmalloc(size_t size);
  69 void *zcalloc(size_t size);
  70 void *zrealloc(void *ptr, size_t size);
  71 void zfree(void *ptr);
  72 char *zstrdup(const char *s);
  73 size_t zmalloc_used_memory(void);
  74 void zmalloc_enable_thread_safeness(void);
  75 void zmalloc_set_oom_handler(void (*oom_handler)(size_t));
  76 float zmalloc_get_fragmentation_ratio(void);
  77 size_t zmalloc_get_rss(void);
  78 void zlibc_free(void *ptr);
  79
  80 #ifndef HAVE_MALLOC_SIZE
  81 size_t zmalloc_size(void *ptr);
  82 #endif
  83
  84 #endif /* __ZMALLOC_H */