mirror of https://github.com/trapexit/mergerfs.git
Antonio SJ Musumeci
4 years ago
12 changed files with 1245 additions and 248 deletions
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3libfuse/Makefile
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627libfuse/include/khash.h
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46libfuse/include/xmem.h
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275libfuse/lib/fuse.c
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7libfuse/lib/fuse_dirents.c
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17libfuse/lib/fuse_loop_mt.c
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70libfuse/lib/fuse_lowlevel.c
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21libfuse/lib/fuse_opt.c
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9libfuse/lib/fuse_session.c
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323libfuse/lib/xmem.c
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39libfuse/lib/xmem.h
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56src/fuse_ioctl.cpp
@ -0,0 +1,627 @@ |
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/* The MIT License |
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|
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Copyright (c) 2008, 2009, 2011 by Attractive Chaos <attractor@live.co.uk> |
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Permission is hereby granted, free of charge, to any person obtaining |
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a copy of this software and associated documentation files (the |
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"Software"), to deal in the Software without restriction, including |
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without limitation the rights to use, copy, modify, merge, publish, |
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distribute, sublicense, and/or sell copies of the Software, and to |
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permit persons to whom the Software is furnished to do so, subject to |
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the following conditions: |
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|
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The above copyright notice and this permission notice shall be |
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included in all copies or substantial portions of the Software. |
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
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BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
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ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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SOFTWARE. |
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*/ |
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|
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/* |
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An example: |
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#include "khash.h" |
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KHASH_MAP_INIT_INT(32, char) |
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int main() { |
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int ret, is_missing; |
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khiter_t k; |
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khash_t(32) *h = kh_init(32); |
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k = kh_put(32, h, 5, &ret); |
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kh_value(h, k) = 10; |
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k = kh_get(32, h, 10); |
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is_missing = (k == kh_end(h)); |
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k = kh_get(32, h, 5); |
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kh_del(32, h, k); |
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for (k = kh_begin(h); k != kh_end(h); ++k) |
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if (kh_exist(h, k)) kh_value(h, k) = 1; |
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kh_destroy(32, h); |
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return 0; |
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} |
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*/ |
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|
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/* |
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2013-05-02 (0.2.8): |
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|
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* Use quadratic probing. When the capacity is power of 2, stepping function |
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i*(i+1)/2 guarantees to traverse each bucket. It is better than double |
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hashing on cache performance and is more robust than linear probing. |
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|
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In theory, double hashing should be more robust than quadratic probing. |
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However, my implementation is probably not for large hash tables, because |
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the second hash function is closely tied to the first hash function, |
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which reduce the effectiveness of double hashing. |
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Reference: http://research.cs.vt.edu/AVresearch/hashing/quadratic.php |
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2011-12-29 (0.2.7): |
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* Minor code clean up; no actual effect. |
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2011-09-16 (0.2.6): |
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|
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* The capacity is a power of 2. This seems to dramatically improve the |
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speed for simple keys. Thank Zilong Tan for the suggestion. Reference: |
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|
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- http://code.google.com/p/ulib/ |
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- http://nothings.org/computer/judy/ |
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* Allow to optionally use linear probing which usually has better |
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performance for random input. Double hashing is still the default as it |
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is more robust to certain non-random input. |
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|
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* Added Wang's integer hash function (not used by default). This hash |
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function is more robust to certain non-random input. |
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2011-02-14 (0.2.5): |
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* Allow to declare global functions. |
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2009-09-26 (0.2.4): |
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|
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* Improve portability |
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2008-09-19 (0.2.3): |
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|
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* Corrected the example |
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* Improved interfaces |
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2008-09-11 (0.2.2): |
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* Improved speed a little in kh_put() |
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2008-09-10 (0.2.1): |
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* Added kh_clear() |
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* Fixed a compiling error |
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2008-09-02 (0.2.0): |
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* Changed to token concatenation which increases flexibility. |
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2008-08-31 (0.1.2): |
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* Fixed a bug in kh_get(), which has not been tested previously. |
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2008-08-31 (0.1.1): |
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* Added destructor |
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*/ |
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#ifndef __AC_KHASH_H |
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#define __AC_KHASH_H |
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/*! |
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@header |
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|
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Generic hash table library. |
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*/ |
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#define AC_VERSION_KHASH_H "0.2.8" |
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#include <stdlib.h> |
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#include <string.h> |
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#include <limits.h> |
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/* compiler specific configuration */ |
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|
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#if UINT_MAX == 0xffffffffu |
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typedef unsigned int khint32_t; |
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#elif ULONG_MAX == 0xffffffffu |
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typedef unsigned long khint32_t; |
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#endif |
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|
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#if ULONG_MAX == ULLONG_MAX |
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typedef unsigned long khint64_t; |
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#else |
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typedef unsigned long long khint64_t; |
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#endif |
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|
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#ifndef kh_inline |
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#ifdef _MSC_VER |
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#define kh_inline __inline |
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#else |
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#define kh_inline inline |
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#endif |
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#endif /* kh_inline */ |
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|
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#ifndef klib_unused |
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#if (defined __clang__ && __clang_major__ >= 3) || (defined __GNUC__ && __GNUC__ >= 3) |
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#define klib_unused __attribute__ ((__unused__)) |
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#else |
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#define klib_unused |
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#endif |
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#endif /* klib_unused */ |
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typedef khint32_t khint_t; |
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typedef khint_t khiter_t; |
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#define __ac_isempty(flag, i) ((flag[i>>4]>>((i&0xfU)<<1))&2) |
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#define __ac_isdel(flag, i) ((flag[i>>4]>>((i&0xfU)<<1))&1) |
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#define __ac_iseither(flag, i) ((flag[i>>4]>>((i&0xfU)<<1))&3) |
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#define __ac_set_isdel_false(flag, i) (flag[i>>4]&=~(1ul<<((i&0xfU)<<1))) |
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#define __ac_set_isempty_false(flag, i) (flag[i>>4]&=~(2ul<<((i&0xfU)<<1))) |
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#define __ac_set_isboth_false(flag, i) (flag[i>>4]&=~(3ul<<((i&0xfU)<<1))) |
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#define __ac_set_isdel_true(flag, i) (flag[i>>4]|=1ul<<((i&0xfU)<<1)) |
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#define __ac_fsize(m) ((m) < 16? 1 : (m)>>4) |
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#ifndef kroundup32 |
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#define kroundup32(x) (--(x), (x)|=(x)>>1, (x)|=(x)>>2, (x)|=(x)>>4, (x)|=(x)>>8, (x)|=(x)>>16, ++(x)) |
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#endif |
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|
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#ifndef kcalloc |
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#define kcalloc(N,Z) calloc(N,Z) |
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#endif |
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#ifndef kmalloc |
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#define kmalloc(Z) malloc(Z) |
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#endif |
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#ifndef krealloc |
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#define krealloc(P,Z) realloc(P,Z) |
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#endif |
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#ifndef kfree |
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#define kfree(P) free(P) |
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#endif |
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static const double __ac_HASH_UPPER = 0.77; |
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#define __KHASH_TYPE(name, khkey_t, khval_t) \ |
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typedef struct kh_##name##_s { \ |
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khint_t n_buckets, size, n_occupied, upper_bound; \ |
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khint32_t *flags; \ |
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khkey_t *keys; \ |
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khval_t *vals; \ |
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} kh_##name##_t; |
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|
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#define __KHASH_PROTOTYPES(name, khkey_t, khval_t) \ |
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extern kh_##name##_t *kh_init_##name(void); \ |
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extern void kh_destroy_##name(kh_##name##_t *h); \ |
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extern void kh_clear_##name(kh_##name##_t *h); \ |
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extern khint_t kh_get_##name(const kh_##name##_t *h, khkey_t key); \ |
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extern int kh_resize_##name(kh_##name##_t *h, khint_t new_n_buckets); \ |
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extern khint_t kh_put_##name(kh_##name##_t *h, khkey_t key, int *ret); \ |
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extern void kh_del_##name(kh_##name##_t *h, khint_t x); |
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#define __KHASH_IMPL(name, SCOPE, khkey_t, khval_t, kh_is_map, __hash_func, __hash_equal) \ |
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SCOPE kh_##name##_t *kh_init_##name(void) { \ |
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return (kh_##name##_t*)kcalloc(1, sizeof(kh_##name##_t)); \ |
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} \ |
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SCOPE void kh_destroy_##name(kh_##name##_t *h) \ |
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{ \ |
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if (h) { \ |
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kfree((void *)h->keys); kfree(h->flags); \ |
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kfree((void *)h->vals); \ |
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kfree(h); \ |
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} \ |
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} \ |
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SCOPE void kh_clear_##name(kh_##name##_t *h) \ |
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{ \ |
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if (h && h->flags) { \ |
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memset(h->flags, 0xaa, __ac_fsize(h->n_buckets) * sizeof(khint32_t)); \ |
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h->size = h->n_occupied = 0; \ |
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} \ |
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} \ |
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SCOPE khint_t kh_get_##name(const kh_##name##_t *h, khkey_t key) \ |
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{ \ |
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if (h->n_buckets) { \ |
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khint_t k, i, last, mask, step = 0; \ |
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mask = h->n_buckets - 1; \ |
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k = __hash_func(key); i = k & mask; \ |
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last = i; \ |
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while (!__ac_isempty(h->flags, i) && (__ac_isdel(h->flags, i) || !__hash_equal(h->keys[i], key))) { \ |
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i = (i + (++step)) & mask; \ |
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if (i == last) return h->n_buckets; \ |
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} \ |
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return __ac_iseither(h->flags, i)? h->n_buckets : i; \ |
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} else return 0; \ |
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} \ |
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SCOPE int kh_resize_##name(kh_##name##_t *h, khint_t new_n_buckets) \ |
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{ /* This function uses 0.25*n_buckets bytes of working space instead of [sizeof(key_t+val_t)+.25]*n_buckets. */ \ |
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khint32_t *new_flags = 0; \ |
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khint_t j = 1; \ |
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{ \ |
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kroundup32(new_n_buckets); \ |
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if (new_n_buckets < 4) new_n_buckets = 4; \ |
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if (h->size >= (khint_t)(new_n_buckets * __ac_HASH_UPPER + 0.5)) j = 0; /* requested size is too small */ \ |
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else { /* hash table size to be changed (shrink or expand); rehash */ \ |
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new_flags = (khint32_t*)kmalloc(__ac_fsize(new_n_buckets) * sizeof(khint32_t)); \ |
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if (!new_flags) return -1; \ |
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memset(new_flags, 0xaa, __ac_fsize(new_n_buckets) * sizeof(khint32_t)); \ |
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if (h->n_buckets < new_n_buckets) { /* expand */ \ |
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khkey_t *new_keys = (khkey_t*)krealloc((void *)h->keys, new_n_buckets * sizeof(khkey_t)); \ |
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if (!new_keys) { kfree(new_flags); return -1; } \ |
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h->keys = new_keys; \ |
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if (kh_is_map) { \ |
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khval_t *new_vals = (khval_t*)krealloc((void *)h->vals, new_n_buckets * sizeof(khval_t)); \ |
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if (!new_vals) { kfree(new_flags); return -1; } \ |
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h->vals = new_vals; \ |
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} \ |
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} /* otherwise shrink */ \ |
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} \ |
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} \ |
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if (j) { /* rehashing is needed */ \ |
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for (j = 0; j != h->n_buckets; ++j) { \ |
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if (__ac_iseither(h->flags, j) == 0) { \ |
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khkey_t key = h->keys[j]; \ |
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khval_t val; \ |
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khint_t new_mask; \ |
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new_mask = new_n_buckets - 1; \ |
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if (kh_is_map) val = h->vals[j]; \ |
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__ac_set_isdel_true(h->flags, j); \ |
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while (1) { /* kick-out process; sort of like in Cuckoo hashing */ \ |
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khint_t k, i, step = 0; \ |
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k = __hash_func(key); \ |
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i = k & new_mask; \ |
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while (!__ac_isempty(new_flags, i)) i = (i + (++step)) & new_mask; \ |
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__ac_set_isempty_false(new_flags, i); \ |
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if (i < h->n_buckets && __ac_iseither(h->flags, i) == 0) { /* kick out the existing element */ \ |
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{ khkey_t tmp = h->keys[i]; h->keys[i] = key; key = tmp; } \ |
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if (kh_is_map) { khval_t tmp = h->vals[i]; h->vals[i] = val; val = tmp; } \ |
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__ac_set_isdel_true(h->flags, i); /* mark it as deleted in the old hash table */ \ |
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} else { /* write the element and jump out of the loop */ \ |
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h->keys[i] = key; \ |
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if (kh_is_map) h->vals[i] = val; \ |
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break; \ |
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} \ |
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} \ |
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} \ |
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} \ |
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if (h->n_buckets > new_n_buckets) { /* shrink the hash table */ \ |
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h->keys = (khkey_t*)krealloc((void *)h->keys, new_n_buckets * sizeof(khkey_t)); \ |
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if (kh_is_map) h->vals = (khval_t*)krealloc((void *)h->vals, new_n_buckets * sizeof(khval_t)); \ |
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} \ |
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kfree(h->flags); /* free the working space */ \ |
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h->flags = new_flags; \ |
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h->n_buckets = new_n_buckets; \ |
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h->n_occupied = h->size; \ |
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h->upper_bound = (khint_t)(h->n_buckets * __ac_HASH_UPPER + 0.5); \ |
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} \ |
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return 0; \ |
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} \ |
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SCOPE khint_t kh_put_##name(kh_##name##_t *h, khkey_t key, int *ret) \ |
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{ \ |
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khint_t x; \ |
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if (h->n_occupied >= h->upper_bound) { /* update the hash table */ \ |
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if (h->n_buckets > (h->size<<1)) { \ |
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if (kh_resize_##name(h, h->n_buckets - 1) < 0) { /* clear "deleted" elements */ \ |
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*ret = -1; return h->n_buckets; \ |
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} \ |
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} else if (kh_resize_##name(h, h->n_buckets + 1) < 0) { /* expand the hash table */ \ |
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*ret = -1; return h->n_buckets; \ |
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} \ |
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} /* TODO: to implement automatically shrinking; resize() already support shrinking */ \ |
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{ \ |
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khint_t k, i, site, last, mask = h->n_buckets - 1, step = 0; \ |
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x = site = h->n_buckets; k = __hash_func(key); i = k & mask; \ |
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if (__ac_isempty(h->flags, i)) x = i; /* for speed up */ \ |
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else { \ |
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last = i; \ |
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while (!__ac_isempty(h->flags, i) && (__ac_isdel(h->flags, i) || !__hash_equal(h->keys[i], key))) { \ |
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if (__ac_isdel(h->flags, i)) site = i; \ |
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i = (i + (++step)) & mask; \ |
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if (i == last) { x = site; break; } \ |
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} \ |
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if (x == h->n_buckets) { \ |
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if (__ac_isempty(h->flags, i) && site != h->n_buckets) x = site; \ |
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else x = i; \ |
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} \ |
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} \ |
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} \ |
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if (__ac_isempty(h->flags, x)) { /* not present at all */ \ |
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h->keys[x] = key; \ |
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__ac_set_isboth_false(h->flags, x); \ |
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++h->size; ++h->n_occupied; \ |
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*ret = 1; \ |
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} else if (__ac_isdel(h->flags, x)) { /* deleted */ \ |
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h->keys[x] = key; \ |
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__ac_set_isboth_false(h->flags, x); \ |
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++h->size; \ |
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*ret = 2; \ |
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} else *ret = 0; /* Don't touch h->keys[x] if present and not deleted */ \ |
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return x; \ |
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} \ |
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SCOPE void kh_del_##name(kh_##name##_t *h, khint_t x) \ |
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{ \ |
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if (x != h->n_buckets && !__ac_iseither(h->flags, x)) { \ |
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__ac_set_isdel_true(h->flags, x); \ |
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--h->size; \ |
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} \ |
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} |
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|
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#define KHASH_DECLARE(name, khkey_t, khval_t) \ |
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__KHASH_TYPE(name, khkey_t, khval_t) \ |
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__KHASH_PROTOTYPES(name, khkey_t, khval_t) |
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|
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#define KHASH_INIT2(name, SCOPE, khkey_t, khval_t, kh_is_map, __hash_func, __hash_equal) \ |
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__KHASH_TYPE(name, khkey_t, khval_t) \ |
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__KHASH_IMPL(name, SCOPE, khkey_t, khval_t, kh_is_map, __hash_func, __hash_equal) |
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|
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#define KHASH_INIT(name, khkey_t, khval_t, kh_is_map, __hash_func, __hash_equal) \ |
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KHASH_INIT2(name, static kh_inline klib_unused, khkey_t, khval_t, kh_is_map, __hash_func, __hash_equal) |
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|
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/* --- BEGIN OF HASH FUNCTIONS --- */ |
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|
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/*! @function |
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@abstract Integer hash function |
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@param key The integer [khint32_t] |
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@return The hash value [khint_t] |
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*/ |
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#define kh_int_hash_func(key) (khint32_t)(key) |
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/*! @function |
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@abstract Integer comparison function |
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*/ |
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#define kh_int_hash_equal(a, b) ((a) == (b)) |
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/*! @function |
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@abstract 64-bit integer hash function |
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@param key The integer [khint64_t] |
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@return The hash value [khint_t] |
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*/ |
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#define kh_int64_hash_func(key) (khint32_t)((key)>>33^(key)^(key)<<11) |
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/*! @function |
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@abstract 64-bit integer comparison function |
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*/ |
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#define kh_int64_hash_equal(a, b) ((a) == (b)) |
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/*! @function |
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@abstract const char* hash function |
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@param s Pointer to a null terminated string |
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@return The hash value |
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*/ |
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static kh_inline khint_t __ac_X31_hash_string(const char *s) |
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{ |
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khint_t h = (khint_t)*s; |
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if (h) for (++s ; *s; ++s) h = (h << 5) - h + (khint_t)*s; |
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return h; |
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} |
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/*! @function |
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@abstract Another interface to const char* hash function |
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@param key Pointer to a null terminated string [const char*] |
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@return The hash value [khint_t] |
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*/ |
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#define kh_str_hash_func(key) __ac_X31_hash_string(key) |
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/*! @function |
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@abstract Const char* comparison function |
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*/ |
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#define kh_str_hash_equal(a, b) (strcmp(a, b) == 0) |
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|
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static kh_inline khint_t __ac_Wang_hash(khint_t key) |
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{ |
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key += ~(key << 15); |
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key ^= (key >> 10); |
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key += (key << 3); |
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key ^= (key >> 6); |
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key += ~(key << 11); |
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key ^= (key >> 16); |
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return key; |
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} |
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#define kh_int_hash_func2(key) __ac_Wang_hash((khint_t)key) |
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|
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/* --- END OF HASH FUNCTIONS --- */ |
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|
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/* Other convenient macros... */ |
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|
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/*! |
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@abstract Type of the hash table. |
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@param name Name of the hash table [symbol] |
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*/ |
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#define khash_t(name) kh_##name##_t |
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|
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/*! @function |
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@abstract Initiate a hash table. |
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@param name Name of the hash table [symbol] |
|||
@return Pointer to the hash table [khash_t(name)*] |
|||
*/ |
|||
#define kh_init(name) kh_init_##name() |
|||
|
|||
/*! @function |
|||
@abstract Destroy a hash table. |
|||
@param name Name of the hash table [symbol] |
|||
@param h Pointer to the hash table [khash_t(name)*] |
|||
*/ |
|||
#define kh_destroy(name, h) kh_destroy_##name(h) |
|||
|
|||
/*! @function |
|||
@abstract Reset a hash table without deallocating memory. |
|||
@param name Name of the hash table [symbol] |
|||
@param h Pointer to the hash table [khash_t(name)*] |
|||
*/ |
|||
#define kh_clear(name, h) kh_clear_##name(h) |
|||
|
|||
/*! @function |
|||
@abstract Resize a hash table. |
|||
@param name Name of the hash table [symbol] |
|||
@param h Pointer to the hash table [khash_t(name)*] |
|||
@param s New size [khint_t] |
|||
*/ |
|||
#define kh_resize(name, h, s) kh_resize_##name(h, s) |
|||
|
|||
/*! @function |
|||
@abstract Insert a key to the hash table. |
|||
@param name Name of the hash table [symbol] |
|||
@param h Pointer to the hash table [khash_t(name)*] |
|||
@param k Key [type of keys] |
|||
@param r Extra return code: -1 if the operation failed; |
|||
0 if the key is present in the hash table; |
|||
1 if the bucket is empty (never used); 2 if the element in |
|||
the bucket has been deleted [int*] |
|||
@return Iterator to the inserted element [khint_t] |
|||
*/ |
|||
#define kh_put(name, h, k, r) kh_put_##name(h, k, r) |
|||
|
|||
/*! @function |
|||
@abstract Retrieve a key from the hash table. |
|||
@param name Name of the hash table [symbol] |
|||
@param h Pointer to the hash table [khash_t(name)*] |
|||
@param k Key [type of keys] |
|||
@return Iterator to the found element, or kh_end(h) if the element is absent [khint_t] |
|||
*/ |
|||
#define kh_get(name, h, k) kh_get_##name(h, k) |
|||
|
|||
/*! @function |
|||
@abstract Remove a key from the hash table. |
|||
@param name Name of the hash table [symbol] |
|||
@param h Pointer to the hash table [khash_t(name)*] |
|||
@param k Iterator to the element to be deleted [khint_t] |
|||
*/ |
|||
#define kh_del(name, h, k) kh_del_##name(h, k) |
|||
|
|||
/*! @function |
|||
@abstract Test whether a bucket contains data. |
|||
@param h Pointer to the hash table [khash_t(name)*] |
|||
@param x Iterator to the bucket [khint_t] |
|||
@return 1 if containing data; 0 otherwise [int] |
|||
*/ |
|||
#define kh_exist(h, x) (!__ac_iseither((h)->flags, (x))) |
|||
|
|||
/*! @function |
|||
@abstract Get key given an iterator |
|||
@param h Pointer to the hash table [khash_t(name)*] |
|||
@param x Iterator to the bucket [khint_t] |
|||
@return Key [type of keys] |
|||
*/ |
|||
#define kh_key(h, x) ((h)->keys[x]) |
|||
|
|||
/*! @function |
|||
@abstract Get value given an iterator |
|||
@param h Pointer to the hash table [khash_t(name)*] |
|||
@param x Iterator to the bucket [khint_t] |
|||
@return Value [type of values] |
|||
@discussion For hash sets, calling this results in segfault. |
|||
*/ |
|||
#define kh_val(h, x) ((h)->vals[x]) |
|||
|
|||
/*! @function |
|||
@abstract Alias of kh_val() |
|||
*/ |
|||
#define kh_value(h, x) ((h)->vals[x]) |
|||
|
|||
/*! @function |
|||
@abstract Get the start iterator |
|||
@param h Pointer to the hash table [khash_t(name)*] |
|||
@return The start iterator [khint_t] |
|||
*/ |
|||
#define kh_begin(h) (khint_t)(0) |
|||
|
|||
/*! @function |
|||
@abstract Get the end iterator |
|||
@param h Pointer to the hash table [khash_t(name)*] |
|||
@return The end iterator [khint_t] |
|||
*/ |
|||
#define kh_end(h) ((h)->n_buckets) |
|||
|
|||
/*! @function |
|||
@abstract Get the number of elements in the hash table |
|||
@param h Pointer to the hash table [khash_t(name)*] |
|||
@return Number of elements in the hash table [khint_t] |
|||
*/ |
|||
#define kh_size(h) ((h)->size) |
|||
|
|||
/*! @function |
|||
@abstract Get the number of buckets in the hash table |
|||
@param h Pointer to the hash table [khash_t(name)*] |
|||
@return Number of buckets in the hash table [khint_t] |
|||
*/ |
|||
#define kh_n_buckets(h) ((h)->n_buckets) |
|||
|
|||
/*! @function |
|||
@abstract Iterate over the entries in the hash table |
|||
@param h Pointer to the hash table [khash_t(name)*] |
|||
@param kvar Variable to which key will be assigned |
|||
@param vvar Variable to which value will be assigned |
|||
@param code Block of code to execute |
|||
*/ |
|||
#define kh_foreach(h, kvar, vvar, code) { khint_t __i; \ |
|||
for (__i = kh_begin(h); __i != kh_end(h); ++__i) { \ |
|||
if (!kh_exist(h,__i)) continue; \ |
|||
(kvar) = kh_key(h,__i); \ |
|||
(vvar) = kh_val(h,__i); \ |
|||
code; \ |
|||
} } |
|||
|
|||
/*! @function |
|||
@abstract Iterate over the values in the hash table |
|||
@param h Pointer to the hash table [khash_t(name)*] |
|||
@param vvar Variable to which value will be assigned |
|||
@param code Block of code to execute |
|||
*/ |
|||
#define kh_foreach_value(h, vvar, code) { khint_t __i; \ |
|||
for (__i = kh_begin(h); __i != kh_end(h); ++__i) { \ |
|||
if (!kh_exist(h,__i)) continue; \ |
|||
(vvar) = kh_val(h,__i); \ |
|||
code; \ |
|||
} } |
|||
|
|||
/* More convenient interfaces */ |
|||
|
|||
/*! @function |
|||
@abstract Instantiate a hash set containing integer keys |
|||
@param name Name of the hash table [symbol] |
|||
*/ |
|||
#define KHASH_SET_INIT_INT(name) \ |
|||
KHASH_INIT(name, khint32_t, char, 0, kh_int_hash_func, kh_int_hash_equal) |
|||
|
|||
/*! @function |
|||
@abstract Instantiate a hash map containing integer keys |
|||
@param name Name of the hash table [symbol] |
|||
@param khval_t Type of values [type] |
|||
*/ |
|||
#define KHASH_MAP_INIT_INT(name, khval_t) \ |
|||
KHASH_INIT(name, khint32_t, khval_t, 1, kh_int_hash_func, kh_int_hash_equal) |
|||
|
|||
/*! @function |
|||
@abstract Instantiate a hash set containing 64-bit integer keys |
|||
@param name Name of the hash table [symbol] |
|||
*/ |
|||
#define KHASH_SET_INIT_INT64(name) \ |
|||
KHASH_INIT(name, khint64_t, char, 0, kh_int64_hash_func, kh_int64_hash_equal) |
|||
|
|||
/*! @function |
|||
@abstract Instantiate a hash map containing 64-bit integer keys |
|||
@param name Name of the hash table [symbol] |
|||
@param khval_t Type of values [type] |
|||
*/ |
|||
#define KHASH_MAP_INIT_INT64(name, khval_t) \ |
|||
KHASH_INIT(name, khint64_t, khval_t, 1, kh_int64_hash_func, kh_int64_hash_equal) |
|||
|
|||
typedef const char *kh_cstr_t; |
|||
/*! @function |
|||
@abstract Instantiate a hash map containing const char* keys |
|||
@param name Name of the hash table [symbol] |
|||
*/ |
|||
#define KHASH_SET_INIT_STR(name) \ |
|||
KHASH_INIT(name, kh_cstr_t, char, 0, kh_str_hash_func, kh_str_hash_equal) |
|||
|
|||
/*! @function |
|||
@abstract Instantiate a hash map containing const char* keys |
|||
@param name Name of the hash table [symbol] |
|||
@param khval_t Type of values [type] |
|||
*/ |
|||
#define KHASH_MAP_INIT_STR(name, khval_t) \ |
|||
KHASH_INIT(name, kh_cstr_t, khval_t, 1, kh_str_hash_func, kh_str_hash_equal) |
|||
|
|||
#endif /* __AC_KHASH_H */ |
|||
@ -0,0 +1,46 @@ |
|||
/* |
|||
ISC License |
|||
|
|||
Copyright (c) 2020, Antonio SJ Musumeci <trapexit@spawn.link> |
|||
|
|||
Permission to use, copy, modify, and/or distribute this software for any |
|||
purpose with or without fee is hereby granted, provided that the above |
|||
copyright notice and this permission notice appear in all copies. |
|||
|
|||
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
|||
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
|||
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
|||
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
|||
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
|||
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
|||
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
|||
*/ |
|||
|
|||
#pragma once |
|||
|
|||
#include "extern_c.h" |
|||
|
|||
#include <stdio.h> |
|||
#include <stdlib.h> |
|||
|
|||
EXTERN_C_BEGIN |
|||
|
|||
void xmem_enable(void); |
|||
void xmem_disable(void); |
|||
|
|||
void *xmem_malloc_(size_t size, const char *file, const int line); |
|||
void *xmem_realloc_(void *ptr, size_t size, const char *file, const int line); |
|||
void *xmem_calloc_(size_t nmemb, size_t size, const char *file, const int line); |
|||
void xmem_free_(void *ptr, const char *file, const int line); |
|||
char *xmem_strdup_(const char *s, const char *file, const int line); |
|||
|
|||
void xmem_print(FILE *file); |
|||
void xmem_print_to_tmp(void); |
|||
|
|||
#define xmem_malloc(SIZE) (xmem_malloc_((SIZE),__FILE__,__LINE__)) |
|||
#define xmem_realloc(PTR,SIZE) (xmem_realloc_((PTR),(SIZE),__FILE__,__LINE__)) |
|||
#define xmem_calloc(NMEMB,SIZE) (xmem_calloc_((NMEMB),(SIZE),__FILE__,__LINE__)) |
|||
#define xmem_free(PTR) (xmem_free_((PTR),__FILE__,__LINE__)) |
|||
#define xmem_strdup(STR) (xmem_strdup_((STR),__FILE__,__LINE__)) |
|||
|
|||
EXTERN_C_END |
|||
@ -0,0 +1,323 @@ |
|||
/* |
|||
ISC License |
|||
|
|||
Copyright (c) 2020, Antonio SJ Musumeci <trapexit@spawn.link> |
|||
|
|||
Permission to use, copy, modify, and/or distribute this software for any |
|||
purpose with or without fee is hereby granted, provided that the above |
|||
copyright notice and this permission notice appear in all copies. |
|||
|
|||
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
|||
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
|||
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
|||
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
|||
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
|||
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
|||
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
|||
*/ |
|||
|
|||
#include "khash.h" |
|||
|
|||
#include <pthread.h> |
|||
|
|||
#include <stdint.h> |
|||
#include <stdio.h> |
|||
#include <stdlib.h> |
|||
#include <string.h> |
|||
#include <sys/types.h> |
|||
#include <unistd.h> |
|||
|
|||
typedef struct meminfo_s meminfo_t; |
|||
struct meminfo_s |
|||
{ |
|||
const char *file; |
|||
int line; |
|||
size_t size; |
|||
}; |
|||
|
|||
#define kh_voidp_hash_func(KEY) ((((uint64_t)KEY)>>33)^((uint64_t)KEY)^(((uint64_t)KEY)<<11)) |
|||
#define kh_voidp_hash_equal(A,B) ((A) == (B)) |
|||
#define kh_meminfo_hash_func(KEY) ((((uint64_t)KEY.file)>>33)^((uint64_t)KEY.file)^(((uint64_t)KEY.file)<<11)) |
|||
#define kh_meminfo_hash_equal(A,B) (((A).file == (B).file) && ((A).line == (B).line)) |
|||
|
|||
KHASH_INIT(mem,void*,meminfo_t,1,kh_voidp_hash_func,kh_voidp_hash_equal) |
|||
KHASH_INIT(memrev,meminfo_t,uint64_t,1,kh_meminfo_hash_func,kh_meminfo_hash_equal) |
|||
|
|||
|
|||
static int g_ENABLED = 0; |
|||
static kh_mem_t *g_HASH = NULL; |
|||
static pthread_mutex_t g_HASH_MUTEX; |
|||
static int g_PRINT = 0; |
|||
|
|||
__attribute__((constructor)) |
|||
static |
|||
void |
|||
xmem_init(void) |
|||
{ |
|||
pthread_mutex_init(&g_HASH_MUTEX,NULL); |
|||
g_HASH = kh_init_mem(); |
|||
} |
|||
|
|||
__attribute__((destructor)) |
|||
static |
|||
void |
|||
xmem_destroy(void) |
|||
{ |
|||
kh_destroy_mem(g_HASH); |
|||
} |
|||
|
|||
void |
|||
xmem_enable(void) |
|||
{ |
|||
g_ENABLED = 1; |
|||
} |
|||
|
|||
void |
|||
xmem_disable(void) |
|||
{ |
|||
g_ENABLED = 0; |
|||
} |
|||
|
|||
void |
|||
xmem_print(FILE *file_) |
|||
{ |
|||
khint_t k; |
|||
kh_memrev_t *rev; |
|||
|
|||
if(file_ == NULL) |
|||
file_ = stderr; |
|||
|
|||
rev = kh_init_memrev(); |
|||
|
|||
pthread_mutex_lock(&g_HASH_MUTEX); |
|||
|
|||
for(k = kh_begin(g_HASH); k != kh_end(g_HASH); ++k) |
|||
{ |
|||
if(kh_exist(g_HASH,k)) |
|||
{ |
|||
int ret; |
|||
khint_t kr; |
|||
meminfo_t *mi; |
|||
|
|||
mi = &kh_value(g_HASH,k); |
|||
|
|||
kr = kh_put(memrev,rev,*mi,&ret); |
|||
if(ret == 1) |
|||
kh_value(rev,kr) = 0; |
|||
kh_value(rev,kr) += mi->size; |
|||
} |
|||
} |
|||
|
|||
pthread_mutex_unlock(&g_HASH_MUTEX); |
|||
|
|||
for(k = kh_begin(rev); k != kh_end(rev); ++k) |
|||
{ |
|||
if(!kh_exist(rev,k)) |
|||
continue; |
|||
|
|||
fprintf(file_, |
|||
"%s:%d: %lu\n", |
|||
kh_key(rev,k).file, |
|||
kh_key(rev,k).line, |
|||
kh_value(rev,k)); |
|||
} |
|||
|
|||
kh_destroy_memrev(rev); |
|||
} |
|||
|
|||
void |
|||
xmem_print_to_tmp(void) |
|||
{ |
|||
FILE *file; |
|||
char filepath[256]; |
|||
|
|||
sprintf(filepath,"/tmp/xmem.%d.%ld",getpid(),time(NULL)); |
|||
file = fopen(filepath,"w+"); |
|||
|
|||
xmem_print(file); |
|||
|
|||
fclose(file); |
|||
} |
|||
|
|||
void* |
|||
xmem_malloc_(size_t size_, |
|||
const char *file_, |
|||
const int line_) |
|||
{ |
|||
void *rv; |
|||
|
|||
if(g_ENABLED == 0) |
|||
return malloc(size_); |
|||
|
|||
pthread_mutex_lock(&g_HASH_MUTEX); |
|||
|
|||
rv = malloc(size_); |
|||
if(rv != NULL) |
|||
{ |
|||
int ret; |
|||
khint_t k; |
|||
meminfo_t *meminfo; |
|||
|
|||
k = kh_put(mem,g_HASH,rv,&ret); |
|||
|
|||
meminfo = &kh_value(g_HASH,k); |
|||
|
|||
meminfo->file = file_; |
|||
meminfo->line = line_; |
|||
meminfo->size = size_; |
|||
} |
|||
|
|||
pthread_mutex_unlock(&g_HASH_MUTEX); |
|||
|
|||
if(g_PRINT) |
|||
fprintf(stderr,"malloc: %lu bytes @ %p - %s:%d\n",size_,rv,file_,line_); |
|||
|
|||
return rv; |
|||
} |
|||
|
|||
void* |
|||
xmem_realloc_(void *ptr_, |
|||
size_t size_, |
|||
const char *file_, |
|||
const int line_) |
|||
{ |
|||
void *rv; |
|||
|
|||
if(g_ENABLED == 0) |
|||
return realloc(ptr_,size_); |
|||
|
|||
if(ptr_ == NULL) |
|||
return xmem_malloc_(size_,file_,line_); |
|||
|
|||
pthread_mutex_lock(&g_HASH_MUTEX); |
|||
|
|||
rv = realloc(ptr_,size_); |
|||
if(rv != NULL) |
|||
{ |
|||
int ret; |
|||
khint_t k; |
|||
meminfo_t *meminfo; |
|||
|
|||
k = kh_get(mem,g_HASH,ptr_); |
|||
if(k != kh_end(g_HASH)) |
|||
{ |
|||
if(rv != ptr_) |
|||
{ |
|||
kh_del(mem,g_HASH,k); |
|||
k = kh_put(mem,g_HASH,rv,&ret); |
|||
} |
|||
|
|||
meminfo = &kh_value(g_HASH,k); |
|||
|
|||
meminfo->file = file_; |
|||
meminfo->line = line_; |
|||
meminfo->size = size_; |
|||
} |
|||
} |
|||
|
|||
pthread_mutex_unlock(&g_HASH_MUTEX); |
|||
|
|||
if(g_PRINT) |
|||
fprintf(stderr,"realloc: %lu bytes @ %p - %s:%d\n",size_,rv,file_,line_); |
|||
|
|||
return rv; |
|||
} |
|||
|
|||
void* |
|||
xmem_calloc_(size_t nmemb_, |
|||
size_t size_, |
|||
const char *file_, |
|||
const int line_) |
|||
{ |
|||
void *rv; |
|||
|
|||
if(g_ENABLED == 0) |
|||
return calloc(nmemb_,size_); |
|||
|
|||
pthread_mutex_lock(&g_HASH_MUTEX); |
|||
|
|||
rv = calloc(nmemb_,size_); |
|||
if(rv != NULL) |
|||
{ |
|||
int ret; |
|||
khint_t k; |
|||
meminfo_t *meminfo; |
|||
|
|||
k = kh_put(mem,g_HASH,rv,&ret); |
|||
|
|||
meminfo = &kh_value(g_HASH,k); |
|||
|
|||
meminfo->file = file_; |
|||
meminfo->line = line_; |
|||
meminfo->size = (nmemb_ * size_); |
|||
} |
|||
|
|||
pthread_mutex_unlock(&g_HASH_MUTEX); |
|||
|
|||
if(g_PRINT) |
|||
fprintf(stderr,"calloc: %lu bytes @ %p - %s:%d\n",nmemb_*size_,rv,file_,line_); |
|||
|
|||
return rv; |
|||
} |
|||
|
|||
char* |
|||
xmem_strdup_(const char *s_, |
|||
const char *file_, |
|||
const int line_) |
|||
{ |
|||
char *rv; |
|||
size_t size; |
|||
|
|||
if(g_ENABLED == 0) |
|||
return strdup(s_); |
|||
|
|||
pthread_mutex_lock(&g_HASH_MUTEX); |
|||
|
|||
size = 0; |
|||
rv = strdup(s_); |
|||
if(rv != NULL) |
|||
{ |
|||
int ret; |
|||
khint_t k; |
|||
meminfo_t *meminfo; |
|||
|
|||
k = kh_put(mem,g_HASH,rv,&ret); |
|||
|
|||
meminfo = &kh_value(g_HASH,k); |
|||
|
|||
size = strlen(s_); |
|||
meminfo->file = file_; |
|||
meminfo->line = line_; |
|||
meminfo->size = size; |
|||
} |
|||
|
|||
pthread_mutex_unlock(&g_HASH_MUTEX); |
|||
|
|||
if(g_PRINT) |
|||
fprintf(stderr,"strdup: %lu bytes @ %p - %s:%d\n",size,rv,file_,line_); |
|||
|
|||
return rv; |
|||
} |
|||
|
|||
void |
|||
xmem_free_(void *ptr_, |
|||
const char *file_, |
|||
const int line_) |
|||
{ |
|||
khint_t key; |
|||
|
|||
if(g_ENABLED == 0) |
|||
return free(ptr_); |
|||
|
|||
pthread_mutex_lock(&g_HASH_MUTEX); |
|||
|
|||
free(ptr_); |
|||
key = kh_get(mem,g_HASH,ptr_); |
|||
if(key != kh_end(g_HASH)) |
|||
kh_del(mem,g_HASH,key); |
|||
|
|||
pthread_mutex_unlock(&g_HASH_MUTEX); |
|||
|
|||
if(g_PRINT) |
|||
fprintf(stderr,"free: %p - %s:%d\n",ptr_,file_,line_); |
|||
} |
|||
@ -0,0 +1,39 @@ |
|||
/* |
|||
ISC License |
|||
|
|||
Copyright (c) 2020, Antonio SJ Musumeci <trapexit@spawn.link> |
|||
|
|||
Permission to use, copy, modify, and/or distribute this software for any |
|||
purpose with or without fee is hereby granted, provided that the above |
|||
copyright notice and this permission notice appear in all copies. |
|||
|
|||
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
|||
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
|||
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
|||
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
|||
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
|||
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
|||
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
|||
*/ |
|||
|
|||
#pragma once |
|||
|
|||
#include <stdio.h> |
|||
#include <stdlib.h> |
|||
|
|||
extern void xmem_enable(void); |
|||
extern void xmem_disable(void); |
|||
|
|||
extern void *xmem_malloc_(size_t size, const char *file, const int line); |
|||
extern void *xmem_realloc_(void *ptr, size_t size, const char *file, const int line); |
|||
extern void *xmem_calloc_(size_t nmemb, size_t size, const char *file, const int line); |
|||
extern void xmem_free_(void *ptr, const char *file, const int line); |
|||
extern char *xmem_strdup_(const char *s, const char *file, const int line); |
|||
|
|||
extern void xmem_print(FILE *file); |
|||
|
|||
#define xmem_malloc(SIZE) (xmem_malloc_((SIZE),__FILE__,__LINE__)) |
|||
#define xmem_realloc(PTR,SIZE) (xmem_realloc_((PTR),(SIZE),__FILE__,__LINE__)) |
|||
#define xmem_calloc(NMEMB,SIZE) (xmem_calloc_((NMEMB),(SIZE),__FILE__,__LINE__)) |
|||
#define xmem_free(PTR) (xmem_free_((PTR),__FILE__,__LINE__)) |
|||
#define xmem_strdup(STR) (xmem_strdup_((STR),__FILE__,__LINE__)) |
|||
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