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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
c2f1db8f | 2 | #pragma once |
60918275 | 3 | |
a7334b09 | 4 | /*** |
a7334b09 | 5 | Copyright 2010 Lennart Poettering |
a7334b09 LP |
6 | ***/ |
7 | ||
c31e1495 | 8 | #include <inttypes.h> |
c01ff965 | 9 | #include <stdbool.h> |
afc5dbf3 | 10 | #include <sys/param.h> |
27d13af7 | 11 | #include <sys/sysmacros.h> |
afc5dbf3 | 12 | #include <sys/types.h> |
60918275 | 13 | |
44b601bc | 14 | #define _printf_(a,b) __attribute__ ((format (printf, a, b))) |
26e9e10b ZJS |
15 | #ifdef __clang__ |
16 | # define _alloc_(...) | |
17 | #else | |
18 | # define _alloc_(...) __attribute__ ((alloc_size(__VA_ARGS__))) | |
19 | #endif | |
93a46b0b | 20 | #define _sentinel_ __attribute__ ((sentinel)) |
93a46b0b LP |
21 | #define _unused_ __attribute__ ((unused)) |
22 | #define _destructor_ __attribute__ ((destructor)) | |
23 | #define _pure_ __attribute__ ((pure)) | |
24 | #define _const_ __attribute__ ((const)) | |
25 | #define _deprecated_ __attribute__ ((deprecated)) | |
26 | #define _packed_ __attribute__ ((packed)) | |
27 | #define _malloc_ __attribute__ ((malloc)) | |
28 | #define _weak_ __attribute__ ((weak)) | |
29 | #define _likely_(x) (__builtin_expect(!!(x),1)) | |
30 | #define _unlikely_(x) (__builtin_expect(!!(x),0)) | |
40473a70 LP |
31 | #define _public_ __attribute__ ((visibility("default"))) |
32 | #define _hidden_ __attribute__ ((visibility("hidden"))) | |
ad780f19 | 33 | #define _weakref_(x) __attribute__((weakref(#x))) |
19d1e4ee | 34 | #define _alignas_(x) __attribute__((aligned(__alignof(x)))) |
dfb33a97 | 35 | #define _cleanup_(x) __attribute__((cleanup(x))) |
fb8e74a4 | 36 | #if __GNUC__ >= 7 |
4831981d | 37 | #define _fallthrough_ __attribute__((fallthrough)) |
fb8e74a4 SL |
38 | #else |
39 | #define _fallthrough_ | |
40 | #endif | |
848e863a FB |
41 | /* Define C11 noreturn without <stdnoreturn.h> and even on older gcc |
42 | * compiler versions */ | |
43 | #ifndef _noreturn_ | |
44 | #if __STDC_VERSION__ >= 201112L | |
45 | #define _noreturn_ _Noreturn | |
46 | #else | |
47 | #define _noreturn_ __attribute__((noreturn)) | |
48 | #endif | |
49 | #endif | |
60918275 | 50 | |
989290db ZJS |
51 | #if !defined(HAS_FEATURE_MEMORY_SANITIZER) |
52 | # if defined(__has_feature) | |
53 | # if __has_feature(memory_sanitizer) | |
54 | # define HAS_FEATURE_MEMORY_SANITIZER 1 | |
55 | # endif | |
56 | # endif | |
57 | # if !defined(HAS_FEATURE_MEMORY_SANITIZER) | |
58 | # define HAS_FEATURE_MEMORY_SANITIZER 0 | |
59 | # endif | |
60 | #endif | |
61 | ||
7ebe131a LP |
62 | /* Temporarily disable some warnings */ |
63 | #define DISABLE_WARNING_DECLARATION_AFTER_STATEMENT \ | |
64 | _Pragma("GCC diagnostic push"); \ | |
65 | _Pragma("GCC diagnostic ignored \"-Wdeclaration-after-statement\"") | |
66 | ||
bcfce235 LP |
67 | #define DISABLE_WARNING_FORMAT_NONLITERAL \ |
68 | _Pragma("GCC diagnostic push"); \ | |
69 | _Pragma("GCC diagnostic ignored \"-Wformat-nonliteral\"") | |
70 | ||
f0f2e63b LP |
71 | #define DISABLE_WARNING_MISSING_PROTOTYPES \ |
72 | _Pragma("GCC diagnostic push"); \ | |
73 | _Pragma("GCC diagnostic ignored \"-Wmissing-prototypes\"") | |
74 | ||
8fca4e30 LP |
75 | #define DISABLE_WARNING_NONNULL \ |
76 | _Pragma("GCC diagnostic push"); \ | |
77 | _Pragma("GCC diagnostic ignored \"-Wnonnull\"") | |
78 | ||
d442e2ec DH |
79 | #define DISABLE_WARNING_SHADOW \ |
80 | _Pragma("GCC diagnostic push"); \ | |
81 | _Pragma("GCC diagnostic ignored \"-Wshadow\"") | |
82 | ||
df99a9ef ZJS |
83 | #define DISABLE_WARNING_INCOMPATIBLE_POINTER_TYPES \ |
84 | _Pragma("GCC diagnostic push"); \ | |
85 | _Pragma("GCC diagnostic ignored \"-Wincompatible-pointer-types\"") | |
86 | ||
7ebe131a LP |
87 | #define REENABLE_WARNING \ |
88 | _Pragma("GCC diagnostic pop") | |
89 | ||
49e5de64 ZJS |
90 | /* automake test harness */ |
91 | #define EXIT_TEST_SKIP 77 | |
92 | ||
bef2733f LP |
93 | #define XSTRINGIFY(x) #x |
94 | #define STRINGIFY(x) XSTRINGIFY(x) | |
95 | ||
ab9cbe34 LS |
96 | #define XCONCATENATE(x, y) x ## y |
97 | #define CONCATENATE(x, y) XCONCATENATE(x, y) | |
98 | ||
fb835651 DH |
99 | #define UNIQ_T(x, uniq) CONCATENATE(__unique_prefix_, CONCATENATE(x, uniq)) |
100 | #define UNIQ __COUNTER__ | |
101 | ||
13b498f9 TJ |
102 | /* builtins */ |
103 | #if __SIZEOF_INT__ == 4 | |
104 | #define BUILTIN_FFS_U32(x) __builtin_ffs(x); | |
105 | #elif __SIZEOF_LONG__ == 4 | |
106 | #define BUILTIN_FFS_U32(x) __builtin_ffsl(x); | |
107 | #else | |
108 | #error "neither int nor long are four bytes long?!?" | |
109 | #endif | |
110 | ||
60918275 | 111 | /* Rounds up */ |
9be9c7cf LP |
112 | |
113 | #define ALIGN4(l) (((l) + 3) & ~3) | |
114 | #define ALIGN8(l) (((l) + 7) & ~7) | |
115 | ||
116 | #if __SIZEOF_POINTER__ == 8 | |
117 | #define ALIGN(l) ALIGN8(l) | |
118 | #elif __SIZEOF_POINTER__ == 4 | |
119 | #define ALIGN(l) ALIGN4(l) | |
120 | #else | |
121 | #error "Wut? Pointers are neither 4 nor 8 bytes long?" | |
122 | #endif | |
123 | ||
5f86c1f4 LP |
124 | #define ALIGN_PTR(p) ((void*) ALIGN((unsigned long) (p))) |
125 | #define ALIGN4_PTR(p) ((void*) ALIGN4((unsigned long) (p))) | |
126 | #define ALIGN8_PTR(p) ((void*) ALIGN8((unsigned long) (p))) | |
e86b80b8 | 127 | |
37f85e66 | 128 | static inline size_t ALIGN_TO(size_t l, size_t ali) { |
129 | return ((l + ali - 1) & ~(ali - 1)); | |
22be093f LP |
130 | } |
131 | ||
5f86c1f4 | 132 | #define ALIGN_TO_PTR(p, ali) ((void*) ALIGN_TO((unsigned long) (p), (ali))) |
49aa47c7 | 133 | |
625e870b DH |
134 | /* align to next higher power-of-2 (except for: 0 => 0, overflow => 0) */ |
135 | static inline unsigned long ALIGN_POWER2(unsigned long u) { | |
136 | /* clz(0) is undefined */ | |
137 | if (u == 1) | |
138 | return 1; | |
139 | ||
140 | /* left-shift overflow is undefined */ | |
141 | if (__builtin_clzl(u - 1UL) < 1) | |
142 | return 0; | |
143 | ||
144 | return 1UL << (sizeof(u) * 8 - __builtin_clzl(u - 1UL)); | |
145 | } | |
146 | ||
963c6c90 ZJS |
147 | #ifndef __COVERITY__ |
148 | # define VOID_0 ((void)0) | |
149 | #else | |
150 | # define VOID_0 ((void*)0) | |
151 | #endif | |
152 | ||
7f39a210 MS |
153 | #define ELEMENTSOF(x) \ |
154 | __extension__ (__builtin_choose_expr( \ | |
155 | !__builtin_types_compatible_p(typeof(x), typeof(&*(x))), \ | |
156 | sizeof(x)/sizeof((x)[0]), \ | |
963c6c90 | 157 | VOID_0)) |
6febe75d TH |
158 | |
159 | /* | |
160 | * STRLEN - return the length of a string literal, minus the trailing NUL byte. | |
161 | * Contrary to strlen(), this is a constant expression. | |
162 | * @x: a string literal. | |
163 | */ | |
164 | #define STRLEN(x) (sizeof(""x"") - 1) | |
165 | ||
bbc98d32 KS |
166 | /* |
167 | * container_of - cast a member of a structure out to the containing structure | |
168 | * @ptr: the pointer to the member. | |
169 | * @type: the type of the container struct this is embedded in. | |
170 | * @member: the name of the member within the struct. | |
bbc98d32 | 171 | */ |
fb835651 DH |
172 | #define container_of(ptr, type, member) __container_of(UNIQ, (ptr), type, member) |
173 | #define __container_of(uniq, ptr, type, member) \ | |
fa70beaa | 174 | __extension__ ({ \ |
fb835651 DH |
175 | const typeof( ((type*)0)->member ) *UNIQ_T(A, uniq) = (ptr); \ |
176 | (type*)( (char *)UNIQ_T(A, uniq) - offsetof(type,member) ); \ | |
177 | }) | |
bbc98d32 | 178 | |
9607d947 | 179 | #undef MAX |
667a0377 DH |
180 | #define MAX(a, b) __MAX(UNIQ, (a), UNIQ, (b)) |
181 | #define __MAX(aq, a, bq, b) \ | |
fdcba430 | 182 | __extension__ ({ \ |
667a0377 DH |
183 | const typeof(a) UNIQ_T(A, aq) = (a); \ |
184 | const typeof(b) UNIQ_T(B, bq) = (b); \ | |
185 | UNIQ_T(A,aq) > UNIQ_T(B,bq) ? UNIQ_T(A,aq) : UNIQ_T(B,bq); \ | |
186 | }) | |
60918275 | 187 | |
7242d742 DH |
188 | /* evaluates to (void) if _A or _B are not constant or of different types */ |
189 | #define CONST_MAX(_A, _B) \ | |
190 | __extension__ (__builtin_choose_expr( \ | |
191 | __builtin_constant_p(_A) && \ | |
192 | __builtin_constant_p(_B) && \ | |
193 | __builtin_types_compatible_p(typeof(_A), typeof(_B)), \ | |
194 | ((_A) > (_B)) ? (_A) : (_B), \ | |
963c6c90 | 195 | VOID_0)) |
7242d742 | 196 | |
40a1eebd DH |
197 | /* takes two types and returns the size of the larger one */ |
198 | #define MAXSIZE(A, B) (sizeof(union _packed_ { typeof(A) a; typeof(B) b; })) | |
199 | ||
fdcba430 DH |
200 | #define MAX3(x,y,z) \ |
201 | __extension__ ({ \ | |
202 | const typeof(x) _c = MAX(x,y); \ | |
203 | MAX(_c, z); \ | |
9607d947 | 204 | }) |
3b63d2d3 | 205 | |
9607d947 | 206 | #undef MIN |
667a0377 DH |
207 | #define MIN(a, b) __MIN(UNIQ, (a), UNIQ, (b)) |
208 | #define __MIN(aq, a, bq, b) \ | |
fdcba430 | 209 | __extension__ ({ \ |
667a0377 DH |
210 | const typeof(a) UNIQ_T(A, aq) = (a); \ |
211 | const typeof(b) UNIQ_T(B, bq) = (b); \ | |
212 | UNIQ_T(A,aq) < UNIQ_T(B,bq) ? UNIQ_T(A,aq) : UNIQ_T(B,bq); \ | |
213 | }) | |
60918275 | 214 | |
fdcba430 DH |
215 | #define MIN3(x,y,z) \ |
216 | __extension__ ({ \ | |
217 | const typeof(x) _c = MIN(x,y); \ | |
218 | MIN(_c, z); \ | |
7df23077 DH |
219 | }) |
220 | ||
667a0377 DH |
221 | #define LESS_BY(a, b) __LESS_BY(UNIQ, (a), UNIQ, (b)) |
222 | #define __LESS_BY(aq, a, bq, b) \ | |
fdcba430 | 223 | __extension__ ({ \ |
667a0377 DH |
224 | const typeof(a) UNIQ_T(A, aq) = (a); \ |
225 | const typeof(b) UNIQ_T(B, bq) = (b); \ | |
226 | UNIQ_T(A,aq) > UNIQ_T(B,bq) ? UNIQ_T(A,aq) - UNIQ_T(B,bq) : 0; \ | |
227 | }) | |
348ced90 | 228 | |
667a0377 DH |
229 | #undef CLAMP |
230 | #define CLAMP(x, low, high) __CLAMP(UNIQ, (x), UNIQ, (low), UNIQ, (high)) | |
231 | #define __CLAMP(xq, x, lowq, low, highq, high) \ | |
60918275 | 232 | __extension__ ({ \ |
667a0377 DH |
233 | const typeof(x) UNIQ_T(X,xq) = (x); \ |
234 | const typeof(low) UNIQ_T(LOW,lowq) = (low); \ | |
235 | const typeof(high) UNIQ_T(HIGH,highq) = (high); \ | |
236 | UNIQ_T(X,xq) > UNIQ_T(HIGH,highq) ? \ | |
237 | UNIQ_T(HIGH,highq) : \ | |
238 | UNIQ_T(X,xq) < UNIQ_T(LOW,lowq) ? \ | |
239 | UNIQ_T(LOW,lowq) : \ | |
240 | UNIQ_T(X,xq); \ | |
241 | }) | |
60918275 | 242 | |
180a60bc DH |
243 | /* [(x + y - 1) / y] suffers from an integer overflow, even though the |
244 | * computation should be possible in the given type. Therefore, we use | |
245 | * [x / y + !!(x % y)]. Note that on "Real CPUs" a division returns both the | |
246 | * quotient and the remainder, so both should be equally fast. */ | |
247 | #define DIV_ROUND_UP(_x, _y) \ | |
248 | __extension__ ({ \ | |
249 | const typeof(_x) __x = (_x); \ | |
250 | const typeof(_y) __y = (_y); \ | |
251 | (__x / __y + !!(__x % __y)); \ | |
252 | }) | |
253 | ||
34c38d2a | 254 | #define assert_message_se(expr, message) \ |
dd8f71ee | 255 | do { \ |
93a46b0b | 256 | if (_unlikely_(!(expr))) \ |
34c38d2a MS |
257 | log_assert_failed(message, __FILE__, __LINE__, __PRETTY_FUNCTION__); \ |
258 | } while (false) | |
259 | ||
260 | #define assert_se(expr) assert_message_se(expr, #expr) | |
dd8f71ee LP |
261 | |
262 | /* We override the glibc assert() here. */ | |
263 | #undef assert | |
264 | #ifdef NDEBUG | |
9ed794a3 | 265 | #define assert(expr) do {} while (false) |
dd8f71ee | 266 | #else |
34c38d2a | 267 | #define assert(expr) assert_message_se(expr, #expr) |
dd8f71ee | 268 | #endif |
60918275 | 269 | |
dd8f71ee LP |
270 | #define assert_not_reached(t) \ |
271 | do { \ | |
b7f33638 | 272 | log_assert_failed_unreachable(t, __FILE__, __LINE__, __PRETTY_FUNCTION__); \ |
dd8f71ee | 273 | } while (false) |
60918275 | 274 | |
f791c684 | 275 | #if defined(static_assert) |
7ebe131a LP |
276 | /* static_assert() is sometimes defined in a way that trips up |
277 | * -Wdeclaration-after-statement, hence let's temporarily turn off | |
278 | * this warning around it. */ | |
279 | #define assert_cc(expr) \ | |
280 | DISABLE_WARNING_DECLARATION_AFTER_STATEMENT; \ | |
281 | static_assert(expr, #expr); \ | |
282 | REENABLE_WARNING | |
f791c684 | 283 | #else |
7ebe131a LP |
284 | #define assert_cc(expr) \ |
285 | DISABLE_WARNING_DECLARATION_AFTER_STATEMENT; \ | |
6825a04d | 286 | struct CONCATENATE(_assert_struct_, __COUNTER__) { \ |
7ebe131a LP |
287 | char x[(expr) ? 0 : -1]; \ |
288 | }; \ | |
289 | REENABLE_WARNING | |
f791c684 | 290 | #endif |
60918275 | 291 | |
34c38d2a MS |
292 | #define assert_log(expr, message) ((_likely_(expr)) \ |
293 | ? (true) \ | |
294 | : (log_assert_failed_return(message, __FILE__, __LINE__, __PRETTY_FUNCTION__), false)) | |
366e6411 | 295 | |
80514f9c LP |
296 | #define assert_return(expr, r) \ |
297 | do { \ | |
34c38d2a | 298 | if (!assert_log(expr, #expr)) \ |
80514f9c | 299 | return (r); \ |
18387b59 LP |
300 | } while (false) |
301 | ||
aa029628 TG |
302 | #define assert_return_errno(expr, r, err) \ |
303 | do { \ | |
34c38d2a | 304 | if (!assert_log(expr, #expr)) { \ |
aa029628 TG |
305 | errno = err; \ |
306 | return (r); \ | |
307 | } \ | |
308 | } while (false) | |
309 | ||
a3dc3547 KS |
310 | #define PTR_TO_INT(p) ((int) ((intptr_t) (p))) |
311 | #define INT_TO_PTR(u) ((void *) ((intptr_t) (u))) | |
60918275 | 312 | #define PTR_TO_UINT(p) ((unsigned int) ((uintptr_t) (p))) |
a3dc3547 | 313 | #define UINT_TO_PTR(u) ((void *) ((uintptr_t) (u))) |
60918275 | 314 | |
a3dc3547 KS |
315 | #define PTR_TO_LONG(p) ((long) ((intptr_t) (p))) |
316 | #define LONG_TO_PTR(u) ((void *) ((intptr_t) (u))) | |
c6c18be3 | 317 | #define PTR_TO_ULONG(p) ((unsigned long) ((uintptr_t) (p))) |
a3dc3547 | 318 | #define ULONG_TO_PTR(u) ((void *) ((uintptr_t) (u))) |
c6c18be3 | 319 | |
a3dc3547 KS |
320 | #define PTR_TO_INT32(p) ((int32_t) ((intptr_t) (p))) |
321 | #define INT32_TO_PTR(u) ((void *) ((intptr_t) (u))) | |
322 | #define PTR_TO_UINT32(p) ((uint32_t) ((uintptr_t) (p))) | |
323 | #define UINT32_TO_PTR(u) ((void *) ((uintptr_t) (u))) | |
60918275 | 324 | |
a3dc3547 KS |
325 | #define PTR_TO_INT64(p) ((int64_t) ((intptr_t) (p))) |
326 | #define INT64_TO_PTR(u) ((void *) ((intptr_t) (u))) | |
327 | #define PTR_TO_UINT64(p) ((uint64_t) ((uintptr_t) (p))) | |
328 | #define UINT64_TO_PTR(u) ((void *) ((uintptr_t) (u))) | |
c6c18be3 | 329 | |
74b2466e LP |
330 | #define PTR_TO_SIZE(p) ((size_t) ((uintptr_t) (p))) |
331 | #define SIZE_TO_PTR(u) ((void *) ((uintptr_t) (u))) | |
332 | ||
a9c55a88 LP |
333 | #define CHAR_TO_STR(x) ((char[2]) { x, 0 }) |
334 | ||
034c6ed7 LP |
335 | #define char_array_0(x) x[sizeof(x)-1] = 0; |
336 | ||
fa70beaa LP |
337 | /* Returns the number of chars needed to format variables of the |
338 | * specified type as a decimal string. Adds in extra space for a | |
b7ce6b59 LP |
339 | * negative '-' prefix (hence works correctly on signed |
340 | * types). Includes space for the trailing NUL. */ | |
fa70beaa | 341 | #define DECIMAL_STR_MAX(type) \ |
5bcb0f2b | 342 | (2+(sizeof(type) <= 1 ? 3 : \ |
fa70beaa LP |
343 | sizeof(type) <= 2 ? 5 : \ |
344 | sizeof(type) <= 4 ? 10 : \ | |
345 | sizeof(type) <= 8 ? 20 : sizeof(int[-2*(sizeof(type) > 8)]))) | |
346 | ||
0d1dbeb3 LP |
347 | #define DECIMAL_STR_WIDTH(x) \ |
348 | ({ \ | |
349 | typeof(x) _x_ = (x); \ | |
350 | unsigned ans = 1; \ | |
ce2090ab | 351 | while ((_x_ /= 10) != 0) \ |
0d1dbeb3 LP |
352 | ans++; \ |
353 | ans; \ | |
354 | }) | |
355 | ||
264ad849 LP |
356 | #define SET_FLAG(v, flag, b) \ |
357 | (v) = (b) ? ((v) | (flag)) : ((v) & ~(flag)) | |
d94a24ca ZJS |
358 | #define FLAGS_SET(v, flags) \ |
359 | (((v) & (flags)) == (flags)) | |
264ad849 | 360 | |
d5b26d50 DM |
361 | #define CASE_F(X) case X: |
362 | #define CASE_F_1(CASE, X) CASE_F(X) | |
363 | #define CASE_F_2(CASE, X, ...) CASE(X) CASE_F_1(CASE, __VA_ARGS__) | |
364 | #define CASE_F_3(CASE, X, ...) CASE(X) CASE_F_2(CASE, __VA_ARGS__) | |
365 | #define CASE_F_4(CASE, X, ...) CASE(X) CASE_F_3(CASE, __VA_ARGS__) | |
366 | #define CASE_F_5(CASE, X, ...) CASE(X) CASE_F_4(CASE, __VA_ARGS__) | |
367 | #define CASE_F_6(CASE, X, ...) CASE(X) CASE_F_5(CASE, __VA_ARGS__) | |
368 | #define CASE_F_7(CASE, X, ...) CASE(X) CASE_F_6(CASE, __VA_ARGS__) | |
369 | #define CASE_F_8(CASE, X, ...) CASE(X) CASE_F_7(CASE, __VA_ARGS__) | |
370 | #define CASE_F_9(CASE, X, ...) CASE(X) CASE_F_8(CASE, __VA_ARGS__) | |
371 | #define CASE_F_10(CASE, X, ...) CASE(X) CASE_F_9(CASE, __VA_ARGS__) | |
372 | #define CASE_F_11(CASE, X, ...) CASE(X) CASE_F_10(CASE, __VA_ARGS__) | |
373 | #define CASE_F_12(CASE, X, ...) CASE(X) CASE_F_11(CASE, __VA_ARGS__) | |
374 | #define CASE_F_13(CASE, X, ...) CASE(X) CASE_F_12(CASE, __VA_ARGS__) | |
375 | #define CASE_F_14(CASE, X, ...) CASE(X) CASE_F_13(CASE, __VA_ARGS__) | |
376 | #define CASE_F_15(CASE, X, ...) CASE(X) CASE_F_14(CASE, __VA_ARGS__) | |
377 | #define CASE_F_16(CASE, X, ...) CASE(X) CASE_F_15(CASE, __VA_ARGS__) | |
378 | #define CASE_F_17(CASE, X, ...) CASE(X) CASE_F_16(CASE, __VA_ARGS__) | |
379 | #define CASE_F_18(CASE, X, ...) CASE(X) CASE_F_17(CASE, __VA_ARGS__) | |
380 | #define CASE_F_19(CASE, X, ...) CASE(X) CASE_F_18(CASE, __VA_ARGS__) | |
381 | #define CASE_F_20(CASE, X, ...) CASE(X) CASE_F_19(CASE, __VA_ARGS__) | |
382 | ||
383 | #define GET_CASE_F(_1,_2,_3,_4,_5,_6,_7,_8,_9,_10,_11,_12,_13,_14,_15,_16,_17,_18,_19,_20,NAME,...) NAME | |
384 | #define FOR_EACH_MAKE_CASE(...) \ | |
385 | GET_CASE_F(__VA_ARGS__,CASE_F_20,CASE_F_19,CASE_F_18,CASE_F_17,CASE_F_16,CASE_F_15,CASE_F_14,CASE_F_13,CASE_F_12,CASE_F_11, \ | |
386 | CASE_F_10,CASE_F_9,CASE_F_8,CASE_F_7,CASE_F_6,CASE_F_5,CASE_F_4,CASE_F_3,CASE_F_2,CASE_F_1) \ | |
387 | (CASE_F,__VA_ARGS__) | |
388 | ||
389 | #define IN_SET(x, ...) \ | |
390 | ({ \ | |
391 | bool _found = false; \ | |
392 | /* If the build breaks in the line below, you need to extend the case macros */ \ | |
393 | static _unused_ char _static_assert__macros_need_to_be_extended[20 - sizeof((int[]){__VA_ARGS__})/sizeof(int)]; \ | |
394 | switch(x) { \ | |
395 | FOR_EACH_MAKE_CASE(__VA_ARGS__) \ | |
396 | _found = true; \ | |
397 | break; \ | |
398 | default: \ | |
399 | break; \ | |
400 | } \ | |
401 | _found; \ | |
cabb7806 LP |
402 | }) |
403 | ||
35aa04e9 LP |
404 | #define SWAP_TWO(x, y) do { \ |
405 | typeof(x) _t = (x); \ | |
406 | (x) = (y); \ | |
407 | (y) = (_t); \ | |
408 | } while (false) | |
409 | ||
919ce0b7 SL |
410 | /* Define C11 thread_local attribute even on older gcc compiler |
411 | * version */ | |
ec202eae SL |
412 | #ifndef thread_local |
413 | /* | |
414 | * Don't break on glibc < 2.16 that doesn't define __STDC_NO_THREADS__ | |
415 | * see http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53769 | |
416 | */ | |
417 | #if __STDC_VERSION__ >= 201112L && !(defined(__STDC_NO_THREADS__) || (defined(__GNU_LIBRARY__) && __GLIBC__ == 2 && __GLIBC_MINOR__ < 16)) | |
418 | #define thread_local _Thread_local | |
419 | #else | |
420 | #define thread_local __thread | |
421 | #endif | |
422 | #endif | |
cabb7806 | 423 | |
a2341f68 ZJS |
424 | #define DEFINE_TRIVIAL_CLEANUP_FUNC(type, func) \ |
425 | static inline void func##p(type *p) { \ | |
426 | if (*p) \ | |
427 | func(*p); \ | |
f6a8265b | 428 | } |
a2341f68 | 429 | |
dd8f71ee | 430 | #include "log.h" |