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fb3df220 | 1 | /** @file\r |
d80b2f71 | 2 | Provides copy memory, fill memory, zero memory, and GUID functions.\r |
9095d37b LG |
3 | \r |
4 | The Base Memory Library provides optimized implementations for common memory-based operations.\r | |
5 | These functions should be used in place of coding your own loops to do equivalent common functions.\r | |
6 | This allows optimized library implementations to help increase performance.\r | |
7 | \r | |
8 | Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r | |
9344f092 | 9 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
fb3df220 | 10 | \r |
fb3df220 | 11 | **/\r |
12 | \r | |
13 | #ifndef __BASE_MEMORY_LIB__\r | |
14 | #define __BASE_MEMORY_LIB__\r | |
15 | \r | |
16 | /**\r | |
17 | Copies a source buffer to a destination buffer, and returns the destination buffer.\r | |
18 | \r | |
19 | This function copies Length bytes from SourceBuffer to DestinationBuffer, and returns\r | |
20 | DestinationBuffer. The implementation must be reentrant, and it must handle the case\r | |
21 | where SourceBuffer overlaps DestinationBuffer.\r | |
9095d37b | 22 | \r |
8693ca5d | 23 | If Length is greater than (MAX_ADDRESS - DestinationBuffer + 1), then ASSERT().\r |
24 | If Length is greater than (MAX_ADDRESS - SourceBuffer + 1), then ASSERT().\r | |
fb3df220 | 25 | \r |
af2dc6a7 | 26 | @param DestinationBuffer The pointer to the destination buffer of the memory copy.\r |
27 | @param SourceBuffer The pointer to the source buffer of the memory copy.\r | |
28 | @param Length The number of bytes to copy from SourceBuffer to DestinationBuffer.\r | |
fb3df220 | 29 | \r |
30 | @return DestinationBuffer.\r | |
31 | \r | |
32 | **/\r | |
33 | VOID *\r | |
34 | EFIAPI\r | |
35 | CopyMem (\r | |
36 | OUT VOID *DestinationBuffer,\r | |
37 | IN CONST VOID *SourceBuffer,\r | |
38 | IN UINTN Length\r | |
39 | );\r | |
40 | \r | |
41 | /**\r | |
42 | Fills a target buffer with a byte value, and returns the target buffer.\r | |
43 | \r | |
44 | This function fills Length bytes of Buffer with Value, and returns Buffer.\r | |
9095d37b | 45 | \r |
cc4e0485 | 46 | If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r |
fb3df220 | 47 | \r |
af2dc6a7 | 48 | @param Buffer The memory to set.\r |
49 | @param Length The number of bytes to set.\r | |
50 | @param Value The value with which to fill Length bytes of Buffer.\r | |
fb3df220 | 51 | \r |
52 | @return Buffer.\r | |
53 | \r | |
54 | **/\r | |
55 | VOID *\r | |
56 | EFIAPI\r | |
57 | SetMem (\r | |
58 | OUT VOID *Buffer,\r | |
59 | IN UINTN Length,\r | |
60 | IN UINT8 Value\r | |
61 | );\r | |
62 | \r | |
63 | /**\r | |
64 | Fills a target buffer with a 16-bit value, and returns the target buffer.\r | |
65 | \r | |
66 | This function fills Length bytes of Buffer with the 16-bit value specified by\r | |
67 | Value, and returns Buffer. Value is repeated every 16-bits in for Length\r | |
68 | bytes of Buffer.\r | |
69 | \r | |
70 | If Length > 0 and Buffer is NULL, then ASSERT().\r | |
71 | If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r | |
72 | If Buffer is not aligned on a 16-bit boundary, then ASSERT().\r | |
73 | If Length is not aligned on a 16-bit boundary, then ASSERT().\r | |
74 | \r | |
af2dc6a7 | 75 | @param Buffer The pointer to the target buffer to fill.\r |
76 | @param Length The number of bytes in Buffer to fill.\r | |
77 | @param Value The value with which to fill Length bytes of Buffer.\r | |
fb3df220 | 78 | \r |
79 | @return Buffer.\r | |
80 | \r | |
81 | **/\r | |
82 | VOID *\r | |
83 | EFIAPI\r | |
84 | SetMem16 (\r | |
85 | OUT VOID *Buffer,\r | |
86 | IN UINTN Length,\r | |
87 | IN UINT16 Value\r | |
88 | );\r | |
89 | \r | |
90 | /**\r | |
91 | Fills a target buffer with a 32-bit value, and returns the target buffer.\r | |
92 | \r | |
93 | This function fills Length bytes of Buffer with the 32-bit value specified by\r | |
94 | Value, and returns Buffer. Value is repeated every 32-bits in for Length\r | |
95 | bytes of Buffer.\r | |
96 | \r | |
97 | If Length > 0 and Buffer is NULL, then ASSERT().\r | |
98 | If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r | |
99 | If Buffer is not aligned on a 32-bit boundary, then ASSERT().\r | |
100 | If Length is not aligned on a 32-bit boundary, then ASSERT().\r | |
101 | \r | |
af2dc6a7 | 102 | @param Buffer The pointer to the target buffer to fill.\r |
103 | @param Length The number of bytes in Buffer to fill.\r | |
104 | @param Value The value with which to fill Length bytes of Buffer.\r | |
fb3df220 | 105 | \r |
106 | @return Buffer.\r | |
107 | \r | |
108 | **/\r | |
109 | VOID *\r | |
110 | EFIAPI\r | |
111 | SetMem32 (\r | |
112 | OUT VOID *Buffer,\r | |
113 | IN UINTN Length,\r | |
114 | IN UINT32 Value\r | |
115 | );\r | |
116 | \r | |
117 | /**\r | |
118 | Fills a target buffer with a 64-bit value, and returns the target buffer.\r | |
119 | \r | |
120 | This function fills Length bytes of Buffer with the 64-bit value specified by\r | |
121 | Value, and returns Buffer. Value is repeated every 64-bits in for Length\r | |
122 | bytes of Buffer.\r | |
123 | \r | |
124 | If Length > 0 and Buffer is NULL, then ASSERT().\r | |
125 | If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r | |
126 | If Buffer is not aligned on a 64-bit boundary, then ASSERT().\r | |
127 | If Length is not aligned on a 64-bit boundary, then ASSERT().\r | |
128 | \r | |
af2dc6a7 | 129 | @param Buffer The pointer to the target buffer to fill.\r |
130 | @param Length The number of bytes in Buffer to fill.\r | |
131 | @param Value The value with which to fill Length bytes of Buffer.\r | |
fb3df220 | 132 | \r |
133 | @return Buffer.\r | |
134 | \r | |
135 | **/\r | |
136 | VOID *\r | |
137 | EFIAPI\r | |
138 | SetMem64 (\r | |
139 | OUT VOID *Buffer,\r | |
140 | IN UINTN Length,\r | |
141 | IN UINT64 Value\r | |
142 | );\r | |
143 | \r | |
f7753a96 | 144 | /**\r |
145 | Fills a target buffer with a value that is size UINTN, and returns the target buffer.\r | |
146 | \r | |
147 | This function fills Length bytes of Buffer with the UINTN sized value specified by\r | |
148 | Value, and returns Buffer. Value is repeated every sizeof(UINTN) bytes for Length\r | |
149 | bytes of Buffer.\r | |
150 | \r | |
151 | If Length > 0 and Buffer is NULL, then ASSERT().\r | |
152 | If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r | |
153 | If Buffer is not aligned on a UINTN boundary, then ASSERT().\r | |
154 | If Length is not aligned on a UINTN boundary, then ASSERT().\r | |
155 | \r | |
af2dc6a7 | 156 | @param Buffer The pointer to the target buffer to fill.\r |
157 | @param Length The number of bytes in Buffer to fill.\r | |
158 | @param Value The value with which to fill Length bytes of Buffer.\r | |
f7753a96 | 159 | \r |
160 | @return Buffer.\r | |
161 | \r | |
162 | **/\r | |
163 | VOID *\r | |
164 | EFIAPI\r | |
165 | SetMemN (\r | |
166 | OUT VOID *Buffer,\r | |
167 | IN UINTN Length,\r | |
168 | IN UINTN Value\r | |
169 | );\r | |
170 | \r | |
fb3df220 | 171 | /**\r |
172 | Fills a target buffer with zeros, and returns the target buffer.\r | |
173 | \r | |
174 | This function fills Length bytes of Buffer with zeros, and returns Buffer.\r | |
9095d37b | 175 | \r |
fb3df220 | 176 | If Length > 0 and Buffer is NULL, then ASSERT().\r |
cc4e0485 | 177 | If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r |
fb3df220 | 178 | \r |
af2dc6a7 | 179 | @param Buffer The pointer to the target buffer to fill with zeros.\r |
180 | @param Length The number of bytes in Buffer to fill with zeros.\r | |
fb3df220 | 181 | \r |
182 | @return Buffer.\r | |
183 | \r | |
184 | **/\r | |
185 | VOID *\r | |
186 | EFIAPI\r | |
187 | ZeroMem (\r | |
188 | OUT VOID *Buffer,\r | |
189 | IN UINTN Length\r | |
190 | );\r | |
191 | \r | |
192 | /**\r | |
193 | Compares the contents of two buffers.\r | |
194 | \r | |
195 | This function compares Length bytes of SourceBuffer to Length bytes of DestinationBuffer.\r | |
196 | If all Length bytes of the two buffers are identical, then 0 is returned. Otherwise, the\r | |
197 | value returned is the first mismatched byte in SourceBuffer subtracted from the first\r | |
198 | mismatched byte in DestinationBuffer.\r | |
9095d37b | 199 | \r |
2bfb6009 LG |
200 | If Length > 0 and DestinationBuffer is NULL, then ASSERT().\r |
201 | If Length > 0 and SourceBuffer is NULL, then ASSERT().\r | |
8693ca5d | 202 | If Length is greater than (MAX_ADDRESS - DestinationBuffer + 1), then ASSERT().\r |
203 | If Length is greater than (MAX_ADDRESS - SourceBuffer + 1), then ASSERT().\r | |
fb3df220 | 204 | \r |
af2dc6a7 | 205 | @param DestinationBuffer The pointer to the destination buffer to compare.\r |
206 | @param SourceBuffer The pointer to the source buffer to compare.\r | |
207 | @param Length The number of bytes to compare.\r | |
fb3df220 | 208 | \r |
209 | @return 0 All Length bytes of the two buffers are identical.\r | |
210 | @retval Non-zero The first mismatched byte in SourceBuffer subtracted from the first\r | |
211 | mismatched byte in DestinationBuffer.\r | |
9095d37b | 212 | \r |
fb3df220 | 213 | **/\r |
214 | INTN\r | |
215 | EFIAPI\r | |
216 | CompareMem (\r | |
217 | IN CONST VOID *DestinationBuffer,\r | |
218 | IN CONST VOID *SourceBuffer,\r | |
219 | IN UINTN Length\r | |
220 | );\r | |
221 | \r | |
222 | /**\r | |
223 | Scans a target buffer for an 8-bit value, and returns a pointer to the matching 8-bit value\r | |
224 | in the target buffer.\r | |
225 | \r | |
226 | This function searches target the buffer specified by Buffer and Length from the lowest\r | |
227 | address to the highest address for an 8-bit value that matches Value. If a match is found,\r | |
228 | then a pointer to the matching byte in the target buffer is returned. If no match is found,\r | |
229 | then NULL is returned. If Length is 0, then NULL is returned.\r | |
9095d37b | 230 | \r |
fb3df220 | 231 | If Length > 0 and Buffer is NULL, then ASSERT().\r |
cc4e0485 | 232 | If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r |
fb3df220 | 233 | \r |
af2dc6a7 | 234 | @param Buffer The pointer to the target buffer to scan.\r |
235 | @param Length The number of bytes in Buffer to scan.\r | |
236 | @param Value The value to search for in the target buffer.\r | |
fb3df220 | 237 | \r |
af2dc6a7 | 238 | @return A pointer to the matching byte in the target buffer, otherwise NULL.\r |
fb3df220 | 239 | \r |
240 | **/\r | |
241 | VOID *\r | |
242 | EFIAPI\r | |
243 | ScanMem8 (\r | |
244 | IN CONST VOID *Buffer,\r | |
245 | IN UINTN Length,\r | |
246 | IN UINT8 Value\r | |
247 | );\r | |
248 | \r | |
249 | /**\r | |
250 | Scans a target buffer for a 16-bit value, and returns a pointer to the matching 16-bit value\r | |
251 | in the target buffer.\r | |
252 | \r | |
253 | This function searches target the buffer specified by Buffer and Length from the lowest\r | |
254 | address to the highest address for a 16-bit value that matches Value. If a match is found,\r | |
255 | then a pointer to the matching byte in the target buffer is returned. If no match is found,\r | |
256 | then NULL is returned. If Length is 0, then NULL is returned.\r | |
9095d37b | 257 | \r |
fb3df220 | 258 | If Length > 0 and Buffer is NULL, then ASSERT().\r |
259 | If Buffer is not aligned on a 16-bit boundary, then ASSERT().\r | |
260 | If Length is not aligned on a 16-bit boundary, then ASSERT().\r | |
cc4e0485 | 261 | If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r |
fb3df220 | 262 | \r |
af2dc6a7 | 263 | @param Buffer The pointer to the target buffer to scan.\r |
264 | @param Length The number of bytes in Buffer to scan.\r | |
265 | @param Value The value to search for in the target buffer.\r | |
fb3df220 | 266 | \r |
af2dc6a7 | 267 | @return A pointer to the matching byte in the target buffer, otherwise NULL.\r |
fb3df220 | 268 | \r |
269 | **/\r | |
270 | VOID *\r | |
271 | EFIAPI\r | |
272 | ScanMem16 (\r | |
273 | IN CONST VOID *Buffer,\r | |
274 | IN UINTN Length,\r | |
275 | IN UINT16 Value\r | |
276 | );\r | |
277 | \r | |
278 | /**\r | |
279 | Scans a target buffer for a 32-bit value, and returns a pointer to the matching 32-bit value\r | |
280 | in the target buffer.\r | |
281 | \r | |
282 | This function searches target the buffer specified by Buffer and Length from the lowest\r | |
283 | address to the highest address for a 32-bit value that matches Value. If a match is found,\r | |
284 | then a pointer to the matching byte in the target buffer is returned. If no match is found,\r | |
285 | then NULL is returned. If Length is 0, then NULL is returned.\r | |
9095d37b | 286 | \r |
fb3df220 | 287 | If Length > 0 and Buffer is NULL, then ASSERT().\r |
288 | If Buffer is not aligned on a 32-bit boundary, then ASSERT().\r | |
289 | If Length is not aligned on a 32-bit boundary, then ASSERT().\r | |
cc4e0485 | 290 | If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r |
fb3df220 | 291 | \r |
af2dc6a7 | 292 | @param Buffer The pointer to the target buffer to scan.\r |
293 | @param Length The number of bytes in Buffer to scan.\r | |
294 | @param Value The value to search for in the target buffer.\r | |
fb3df220 | 295 | \r |
af2dc6a7 | 296 | @return A pointer to the matching byte in the target buffer, otherwise NULL.\r |
fb3df220 | 297 | \r |
298 | **/\r | |
299 | VOID *\r | |
300 | EFIAPI\r | |
301 | ScanMem32 (\r | |
302 | IN CONST VOID *Buffer,\r | |
303 | IN UINTN Length,\r | |
304 | IN UINT32 Value\r | |
305 | );\r | |
306 | \r | |
307 | /**\r | |
308 | Scans a target buffer for a 64-bit value, and returns a pointer to the matching 64-bit value\r | |
309 | in the target buffer.\r | |
310 | \r | |
311 | This function searches target the buffer specified by Buffer and Length from the lowest\r | |
312 | address to the highest address for a 64-bit value that matches Value. If a match is found,\r | |
313 | then a pointer to the matching byte in the target buffer is returned. If no match is found,\r | |
314 | then NULL is returned. If Length is 0, then NULL is returned.\r | |
9095d37b | 315 | \r |
fb3df220 | 316 | If Length > 0 and Buffer is NULL, then ASSERT().\r |
317 | If Buffer is not aligned on a 64-bit boundary, then ASSERT().\r | |
318 | If Length is not aligned on a 64-bit boundary, then ASSERT().\r | |
cc4e0485 | 319 | If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r |
fb3df220 | 320 | \r |
af2dc6a7 | 321 | @param Buffer The pointer to the target buffer to scan.\r |
322 | @param Length The number of bytes in Buffer to scan.\r | |
323 | @param Value The value to search for in the target buffer.\r | |
fb3df220 | 324 | \r |
af2dc6a7 | 325 | @return A pointer to the matching byte in the target buffer, otherwise NULL.\r |
fb3df220 | 326 | \r |
327 | **/\r | |
328 | VOID *\r | |
329 | EFIAPI\r | |
330 | ScanMem64 (\r | |
331 | IN CONST VOID *Buffer,\r | |
332 | IN UINTN Length,\r | |
333 | IN UINT64 Value\r | |
334 | );\r | |
335 | \r | |
f7753a96 | 336 | /**\r |
9095d37b | 337 | Scans a target buffer for a UINTN sized value, and returns a pointer to the matching\r |
f7753a96 | 338 | UINTN sized value in the target buffer.\r |
339 | \r | |
340 | This function searches target the buffer specified by Buffer and Length from the lowest\r | |
341 | address to the highest address for a UINTN sized value that matches Value. If a match is found,\r | |
342 | then a pointer to the matching byte in the target buffer is returned. If no match is found,\r | |
343 | then NULL is returned. If Length is 0, then NULL is returned.\r | |
9095d37b | 344 | \r |
f7753a96 | 345 | If Length > 0 and Buffer is NULL, then ASSERT().\r |
346 | If Buffer is not aligned on a UINTN boundary, then ASSERT().\r | |
347 | If Length is not aligned on a UINTN boundary, then ASSERT().\r | |
348 | If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r | |
349 | \r | |
af2dc6a7 | 350 | @param Buffer The pointer to the target buffer to scan.\r |
351 | @param Length The number of bytes in Buffer to scan.\r | |
352 | @param Value The value to search for in the target buffer.\r | |
f7753a96 | 353 | \r |
af2dc6a7 | 354 | @return A pointer to the matching byte in the target buffer, otherwise NULL.\r |
f7753a96 | 355 | \r |
356 | **/\r | |
357 | VOID *\r | |
358 | EFIAPI\r | |
359 | ScanMemN (\r | |
360 | IN CONST VOID *Buffer,\r | |
361 | IN UINTN Length,\r | |
362 | IN UINTN Value\r | |
363 | );\r | |
9095d37b | 364 | \r |
fb3df220 | 365 | /**\r |
366 | Copies a source GUID to a destination GUID.\r | |
367 | \r | |
368 | This function copies the contents of the 128-bit GUID specified by SourceGuid to\r | |
369 | DestinationGuid, and returns DestinationGuid.\r | |
9095d37b | 370 | \r |
fb3df220 | 371 | If DestinationGuid is NULL, then ASSERT().\r |
372 | If SourceGuid is NULL, then ASSERT().\r | |
373 | \r | |
af2dc6a7 | 374 | @param DestinationGuid The pointer to the destination GUID.\r |
375 | @param SourceGuid The pointer to the source GUID.\r | |
fb3df220 | 376 | \r |
377 | @return DestinationGuid.\r | |
378 | \r | |
379 | **/\r | |
380 | GUID *\r | |
381 | EFIAPI\r | |
382 | CopyGuid (\r | |
383 | OUT GUID *DestinationGuid,\r | |
384 | IN CONST GUID *SourceGuid\r | |
385 | );\r | |
386 | \r | |
387 | /**\r | |
388 | Compares two GUIDs.\r | |
389 | \r | |
390 | This function compares Guid1 to Guid2. If the GUIDs are identical then TRUE is returned.\r | |
391 | If there are any bit differences in the two GUIDs, then FALSE is returned.\r | |
9095d37b | 392 | \r |
fb3df220 | 393 | If Guid1 is NULL, then ASSERT().\r |
394 | If Guid2 is NULL, then ASSERT().\r | |
395 | \r | |
396 | @param Guid1 A pointer to a 128 bit GUID.\r | |
397 | @param Guid2 A pointer to a 128 bit GUID.\r | |
398 | \r | |
399 | @retval TRUE Guid1 and Guid2 are identical.\r | |
400 | @retval FALSE Guid1 and Guid2 are not identical.\r | |
401 | \r | |
402 | **/\r | |
403 | BOOLEAN\r | |
404 | EFIAPI\r | |
405 | CompareGuid (\r | |
406 | IN CONST GUID *Guid1,\r | |
407 | IN CONST GUID *Guid2\r | |
408 | );\r | |
409 | \r | |
410 | /**\r | |
411 | Scans a target buffer for a GUID, and returns a pointer to the matching GUID\r | |
412 | in the target buffer.\r | |
413 | \r | |
414 | This function searches target the buffer specified by Buffer and Length from\r | |
415 | the lowest address to the highest address at 128-bit increments for the 128-bit\r | |
416 | GUID value that matches Guid. If a match is found, then a pointer to the matching\r | |
417 | GUID in the target buffer is returned. If no match is found, then NULL is returned.\r | |
418 | If Length is 0, then NULL is returned.\r | |
9095d37b | 419 | \r |
fb3df220 | 420 | If Length > 0 and Buffer is NULL, then ASSERT().\r |
421 | If Buffer is not aligned on a 32-bit boundary, then ASSERT().\r | |
422 | If Length is not aligned on a 128-bit boundary, then ASSERT().\r | |
cc4e0485 | 423 | If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r |
fb3df220 | 424 | \r |
af2dc6a7 | 425 | @param Buffer The pointer to the target buffer to scan.\r |
426 | @param Length The number of bytes in Buffer to scan.\r | |
427 | @param Guid The value to search for in the target buffer.\r | |
fb3df220 | 428 | \r |
af2dc6a7 | 429 | @return A pointer to the matching Guid in the target buffer, otherwise NULL.\r |
fb3df220 | 430 | \r |
431 | **/\r | |
432 | VOID *\r | |
433 | EFIAPI\r | |
434 | ScanGuid (\r | |
435 | IN CONST VOID *Buffer,\r | |
436 | IN UINTN Length,\r | |
437 | IN CONST GUID *Guid\r | |
438 | );\r | |
439 | \r | |
313831d9 HW |
440 | /**\r |
441 | Checks if the given GUID is a zero GUID.\r | |
442 | \r | |
443 | This function checks whether the given GUID is a zero GUID. If the GUID is\r | |
444 | identical to a zero GUID then TRUE is returned. Otherwise, FALSE is returned.\r | |
445 | \r | |
446 | If Guid is NULL, then ASSERT().\r | |
447 | \r | |
448 | @param Guid The pointer to a 128 bit GUID.\r | |
449 | \r | |
450 | @retval TRUE Guid is a zero GUID.\r | |
451 | @retval FALSE Guid is not a zero GUID.\r | |
452 | \r | |
453 | **/\r | |
454 | BOOLEAN\r | |
455 | EFIAPI\r | |
456 | IsZeroGuid (\r | |
457 | IN CONST GUID *Guid\r | |
458 | );\r | |
459 | \r | |
1944b02b HW |
460 | /**\r |
461 | Checks if the contents of a buffer are all zeros.\r | |
462 | \r | |
463 | This function checks whether the contents of a buffer are all zeros. If the\r | |
464 | contents are all zeros, return TRUE. Otherwise, return FALSE.\r | |
465 | \r | |
466 | If Length > 0 and Buffer is NULL, then ASSERT().\r | |
467 | If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r | |
468 | \r | |
469 | @param Buffer The pointer to the buffer to be checked.\r | |
470 | @param Length The size of the buffer (in bytes) to be checked.\r | |
471 | \r | |
472 | @retval TRUE Contents of the buffer are all zeros.\r | |
473 | @retval FALSE Contents of the buffer are not all zeros.\r | |
474 | \r | |
475 | **/\r | |
476 | BOOLEAN\r | |
477 | EFIAPI\r | |
478 | IsZeroBuffer (\r | |
479 | IN CONST VOID *Buffer,\r | |
480 | IN UINTN Length\r | |
481 | );\r | |
482 | \r | |
fb3df220 | 483 | #endif\r |