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annotate third_party/wrk/src/zmalloc.h @ 193:9f4429c49733 hg-web

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[HgWeb] Making progress....
author MrJuneJune <me@mrjunejune.com>
date Sun, 25 Jan 2026 20:04:55 -0800
parents 94705b5986b3
children
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178
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1 /* zmalloc - total amount of allocated memory aware version of malloc()
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2 *
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3 * Copyright (c) 2009-2010, Salvatore Sanfilippo <antirez at gmail dot com>
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4 * All rights reserved.
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5 *
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6 * Redistribution and use in source and binary forms, with or without
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7 * modification, are permitted provided that the following conditions are met:
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8 *
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9 * * Redistributions of source code must retain the above copyright notice,
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10 * this list of conditions and the following disclaimer.
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11 * * Redistributions in binary form must reproduce the above copyright
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12 * notice, this list of conditions and the following disclaimer in the
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13 * documentation and/or other materials provided with the distribution.
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14 * * Neither the name of Redis nor the names of its contributors may be used
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15 * to endorse or promote products derived from this software without
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16 * specific prior written permission.
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17 *
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18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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28 * POSSIBILITY OF SUCH DAMAGE.
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29 */
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30
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31 #ifndef __ZMALLOC_H
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32 #define __ZMALLOC_H
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33
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34 /* Double expansion needed for stringification of macro values. */
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35 #define __xstr(s) __str(s)
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36 #define __str(s) #s
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37
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38 #if defined(USE_TCMALLOC)
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39 #define ZMALLOC_LIB ("tcmalloc-" __xstr(TC_VERSION_MAJOR) "." __xstr(TC_VERSION_MINOR))
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40 #include <google/tcmalloc.h>
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41 #if (TC_VERSION_MAJOR == 1 && TC_VERSION_MINOR >= 6) || (TC_VERSION_MAJOR > 1)
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42 #define HAVE_MALLOC_SIZE 1
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43 #define zmalloc_size(p) tc_malloc_size(p)
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44 #else
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45 #error "Newer version of tcmalloc required"
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46 #endif
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47
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48 #elif defined(USE_JEMALLOC)
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49 #define ZMALLOC_LIB ("jemalloc-" __xstr(JEMALLOC_VERSION_MAJOR) "." __xstr(JEMALLOC_VERSION_MINOR) "." __xstr(JEMALLOC_VERSION_BUGFIX))
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50 #include <jemalloc/jemalloc.h>
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51 #if (JEMALLOC_VERSION_MAJOR == 2 && JEMALLOC_VERSION_MINOR >= 1) || (JEMALLOC_VERSION_MAJOR > 2)
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52 #define HAVE_MALLOC_SIZE 1
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53 #define zmalloc_size(p) je_malloc_usable_size(p)
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54 #else
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55 #error "Newer version of jemalloc required"
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56 #endif
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57
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58 #elif defined(__APPLE__)
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59 #include <malloc/malloc.h>
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60 #define HAVE_MALLOC_SIZE 1
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61 #define zmalloc_size(p) malloc_size(p)
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62 #endif
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63
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64 #ifndef ZMALLOC_LIB
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65 #define ZMALLOC_LIB "libc"
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66 #endif
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67
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68 /* We can enable the Redis defrag capabilities only if we are using Jemalloc
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69 * and the version used is our special version modified for Redis having
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70 * the ability to return per-allocation fragmentation hints. */
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71 #if defined(USE_JEMALLOC) && defined(JEMALLOC_FRAG_HINT)
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72 #define HAVE_DEFRAG
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73 #endif
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74
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75 void *zmalloc(size_t size);
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76 void *zcalloc(size_t size);
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77 void *zrealloc(void *ptr, size_t size);
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78 void zfree(void *ptr);
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79 char *zstrdup(const char *s);
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80 size_t zmalloc_used_memory(void);
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81 void zmalloc_set_oom_handler(void (*oom_handler)(size_t));
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82 float zmalloc_get_fragmentation_ratio(size_t rss);
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83 size_t zmalloc_get_rss(void);
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84 size_t zmalloc_get_private_dirty(long pid);
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85 size_t zmalloc_get_smap_bytes_by_field(char *field, long pid);
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86 size_t zmalloc_get_memory_size(void);
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87 void zlibc_free(void *ptr);
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88
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89 #ifdef HAVE_DEFRAG
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90 void zfree_no_tcache(void *ptr);
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91 void *zmalloc_no_tcache(size_t size);
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92 #endif
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93
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94 #ifndef HAVE_MALLOC_SIZE
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95 size_t zmalloc_size(void *ptr);
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96 #endif
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97
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98 #endif /* __ZMALLOC_H */