d3d8: Improve shader handle management.
[wine] / dlls / ntdll / rtl.c
CommitLineData
b1bac320
AJ
1/*
2 * NT basis DLL
9a624916 3 *
51505b12 4 * This file contains the Rtl* API functions. These should be implementable.
9a624916 5 *
51505b12 6 * Copyright 1996-1998 Marcus Meissner
c83aa0d3
TM
7 * Copyright 1999 Alex Korobka
8 * Copyright 2003 Thomas Mertes
ccf2f616 9 * Crc32 code Copyright 1986 Gary S. Brown (Public domain)
0799c1a7
AJ
10 *
11 * This library is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Lesser General Public
13 * License as published by the Free Software Foundation; either
14 * version 2.1 of the License, or (at your option) any later version.
15 *
16 * This library is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * Lesser General Public License for more details.
20 *
21 * You should have received a copy of the GNU Lesser General Public
22 * License along with this library; if not, write to the Free Software
360a3f91 23 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
b1bac320
AJ
24 */
25
ccf2f616
JG
26#include "config.h"
27#include "wine/port.h"
28
b1bac320 29#include <stdlib.h>
e37c6e18 30#include <stdarg.h>
0aa6cc29 31#include <stdio.h>
b1bac320 32#include <string.h>
1a1583a3
GG
33#include "ntstatus.h"
34#define WIN32_NO_STATUS
d3e22d9d 35#include "windef.h"
e37c6e18 36#include "winternl.h"
40f81e7c 37#include "wine/debug.h"
769a84fa 38#include "ntdll_misc.h"
b1bac320 39
0799c1a7 40WINE_DEFAULT_DEBUG_CHANNEL(ntdll);
b4b9fae6 41
6b636e3e
MM
42static RTL_CRITICAL_SECTION peb_lock;
43static RTL_CRITICAL_SECTION_DEBUG critsect_debug =
19b6a498
AJ
44{
45 0, 0, &peb_lock,
46 { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
20a1a203 47 0, 0, { (DWORD_PTR)(__FILE__ ": peb_lock") }
19b6a498 48};
6b636e3e 49static RTL_CRITICAL_SECTION peb_lock = { &critsect_debug, -1, 0, 0, 0, 0 };
361943aa 50
ccf2f616
JG
51/* CRC polynomial 0xedb88320 */
52static const DWORD CRC_table[256] =
53{
54 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f,
55 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
56 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2,
57 0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
58 0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
59 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
60 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c,
61 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
62 0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423,
63 0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
64 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106,
65 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
66 0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d,
67 0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
68 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
69 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
70 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7,
71 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
72 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa,
73 0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
74 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81,
75 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
76 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84,
77 0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
78 0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
79 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
80 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e,
81 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
82 0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55,
83 0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
84 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28,
85 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
86 0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f,
87 0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
88 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
89 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
90 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69,
91 0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
92 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc,
93 0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
94 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693,
95 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
96 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
97};
98
026d9db8
JS
99/*
100 * resource functions
01d6346a 101 */
f0cbfa0c 102
6479f0fa 103/***********************************************************************
8b216b3d 104 * RtlInitializeResource (NTDLL.@)
6479f0fa
AK
105 *
106 * xxxResource() functions implement multiple-reader-single-writer lock.
107 * The code is based on information published in WDJ January 1999 issue.
108 */
109void WINAPI RtlInitializeResource(LPRTL_RWLOCK rwl)
110{
111 if( rwl )
112 {
113 rwl->iNumberActive = 0;
114 rwl->uExclusiveWaiters = 0;
115 rwl->uSharedWaiters = 0;
116 rwl->hOwningThreadId = 0;
117 rwl->dwTimeoutBoost = 0; /* no info on this one, default value is 0 */
cc9cfdff 118 RtlInitializeCriticalSection( &rwl->rtlCS );
9dc3843c
EP
119 NtCreateSemaphore( &rwl->hExclusiveReleaseSemaphore, SEMAPHORE_ALL_ACCESS, NULL, 0, 65535 );
120 NtCreateSemaphore( &rwl->hSharedReleaseSemaphore, SEMAPHORE_ALL_ACCESS, NULL, 0, 65535 );
6479f0fa
AK
121 }
122}
123
124
125/***********************************************************************
8b216b3d 126 * RtlDeleteResource (NTDLL.@)
6479f0fa
AK
127 */
128void WINAPI RtlDeleteResource(LPRTL_RWLOCK rwl)
129{
130 if( rwl )
131 {
cc9cfdff 132 RtlEnterCriticalSection( &rwl->rtlCS );
6479f0fa 133 if( rwl->iNumberActive || rwl->uExclusiveWaiters || rwl->uSharedWaiters )
15657090 134 MESSAGE("Deleting active MRSW lock (%p), expect failure\n", rwl );
6479f0fa
AK
135 rwl->hOwningThreadId = 0;
136 rwl->uExclusiveWaiters = rwl->uSharedWaiters = 0;
137 rwl->iNumberActive = 0;
0aa6cc29
AJ
138 NtClose( rwl->hExclusiveReleaseSemaphore );
139 NtClose( rwl->hSharedReleaseSemaphore );
cc9cfdff
AJ
140 RtlLeaveCriticalSection( &rwl->rtlCS );
141 RtlDeleteCriticalSection( &rwl->rtlCS );
6479f0fa
AK
142 }
143}
144
145
146/***********************************************************************
8b216b3d 147 * RtlAcquireResourceExclusive (NTDLL.@)
6479f0fa
AK
148 */
149BYTE WINAPI RtlAcquireResourceExclusive(LPRTL_RWLOCK rwl, BYTE fWait)
150{
151 BYTE retVal = 0;
152 if( !rwl ) return 0;
153
154start:
cc9cfdff 155 RtlEnterCriticalSection( &rwl->rtlCS );
6479f0fa
AK
156 if( rwl->iNumberActive == 0 ) /* lock is free */
157 {
158 rwl->iNumberActive = -1;
159 retVal = 1;
160 }
161 else if( rwl->iNumberActive < 0 ) /* exclusive lock in progress */
162 {
7375597f 163 if( rwl->hOwningThreadId == (HANDLE)GetCurrentThreadId() )
6479f0fa
AK
164 {
165 retVal = 1;
166 rwl->iNumberActive--;
167 goto done;
168 }
169wait:
170 if( fWait )
171 {
6c45b626
MM
172 NTSTATUS status;
173
6479f0fa
AK
174 rwl->uExclusiveWaiters++;
175
cc9cfdff 176 RtlLeaveCriticalSection( &rwl->rtlCS );
6c45b626
MM
177 status = NtWaitForSingleObject( rwl->hExclusiveReleaseSemaphore, FALSE, NULL );
178 if( HIWORD(status) )
6479f0fa
AK
179 goto done;
180 goto start; /* restart the acquisition to avoid deadlocks */
181 }
182 }
183 else /* one or more shared locks are in progress */
184 if( fWait )
185 goto wait;
9a624916 186
6479f0fa 187 if( retVal == 1 )
7375597f 188 rwl->hOwningThreadId = (HANDLE)GetCurrentThreadId();
6479f0fa 189done:
cc9cfdff 190 RtlLeaveCriticalSection( &rwl->rtlCS );
6479f0fa
AK
191 return retVal;
192}
193
194/***********************************************************************
8b216b3d 195 * RtlAcquireResourceShared (NTDLL.@)
6479f0fa
AK
196 */
197BYTE WINAPI RtlAcquireResourceShared(LPRTL_RWLOCK rwl, BYTE fWait)
198{
6c45b626 199 NTSTATUS status = STATUS_UNSUCCESSFUL;
6479f0fa
AK
200 BYTE retVal = 0;
201 if( !rwl ) return 0;
202
203start:
cc9cfdff 204 RtlEnterCriticalSection( &rwl->rtlCS );
6479f0fa
AK
205 if( rwl->iNumberActive < 0 )
206 {
7375597f 207 if( rwl->hOwningThreadId == (HANDLE)GetCurrentThreadId() )
6479f0fa
AK
208 {
209 rwl->iNumberActive--;
210 retVal = 1;
211 goto done;
212 }
9a624916 213
6479f0fa
AK
214 if( fWait )
215 {
216 rwl->uSharedWaiters++;
cc9cfdff 217 RtlLeaveCriticalSection( &rwl->rtlCS );
6c45b626
MM
218 status = NtWaitForSingleObject( rwl->hSharedReleaseSemaphore, FALSE, NULL );
219 if( HIWORD(status) )
6479f0fa
AK
220 goto done;
221 goto start;
222 }
223 }
9a624916 224 else
6479f0fa 225 {
6c45b626 226 if( status != STATUS_WAIT_0 ) /* otherwise RtlReleaseResource() has already done it */
6479f0fa
AK
227 rwl->iNumberActive++;
228 retVal = 1;
229 }
230done:
cc9cfdff 231 RtlLeaveCriticalSection( &rwl->rtlCS );
6479f0fa
AK
232 return retVal;
233}
234
235
236/***********************************************************************
8b216b3d 237 * RtlReleaseResource (NTDLL.@)
6479f0fa
AK
238 */
239void WINAPI RtlReleaseResource(LPRTL_RWLOCK rwl)
240{
cc9cfdff 241 RtlEnterCriticalSection( &rwl->rtlCS );
6479f0fa
AK
242
243 if( rwl->iNumberActive > 0 ) /* have one or more readers */
244 {
245 if( --rwl->iNumberActive == 0 )
246 {
247 if( rwl->uExclusiveWaiters )
248 {
249wake_exclusive:
250 rwl->uExclusiveWaiters--;
0aa6cc29 251 NtReleaseSemaphore( rwl->hExclusiveReleaseSemaphore, 1, NULL );
6479f0fa
AK
252 }
253 }
254 }
9a624916 255 else
6479f0fa
AK
256 if( rwl->iNumberActive < 0 ) /* have a writer, possibly recursive */
257 {
258 if( ++rwl->iNumberActive == 0 )
259 {
260 rwl->hOwningThreadId = 0;
261 if( rwl->uExclusiveWaiters )
262 goto wake_exclusive;
263 else
264 if( rwl->uSharedWaiters )
265 {
a3960292 266 UINT n = rwl->uSharedWaiters;
6479f0fa
AK
267 rwl->iNumberActive = rwl->uSharedWaiters; /* prevent new writers from joining until
268 * all queued readers have done their thing */
269 rwl->uSharedWaiters = 0;
0aa6cc29 270 NtReleaseSemaphore( rwl->hSharedReleaseSemaphore, n, NULL );
6479f0fa
AK
271 }
272 }
273 }
cc9cfdff 274 RtlLeaveCriticalSection( &rwl->rtlCS );
6479f0fa
AK
275}
276
277
278/***********************************************************************
8b216b3d 279 * RtlDumpResource (NTDLL.@)
6479f0fa
AK
280 */
281void WINAPI RtlDumpResource(LPRTL_RWLOCK rwl)
282{
283 if( rwl )
284 {
9a624916 285 MESSAGE("RtlDumpResource(%p):\n\tactive count = %i\n\twaiting readers = %i\n\twaiting writers = %i\n",
6479f0fa
AK
286 rwl, rwl->iNumberActive, rwl->uSharedWaiters, rwl->uExclusiveWaiters );
287 if( rwl->iNumberActive )
ed800c69 288 MESSAGE("\towner thread = %p\n", rwl->hOwningThreadId );
6479f0fa
AK
289 }
290}
291
026d9db8
JS
292/*
293 * misc functions
294 */
3426d853
JS
295
296/******************************************************************************
3ca98239 297 * DbgPrint [NTDLL.@]
3426d853 298 */
43b9f97b 299NTSTATUS WINAPIV DbgPrint(LPCSTR fmt, ...)
0aa6cc29 300{
43b9f97b
RJ
301 char buf[512];
302 va_list args;
a4b80d44 303
43b9f97b
RJ
304 va_start(args, fmt);
305 vsprintf(buf,fmt, args);
306 va_end(args);
3426d853 307
43b9f97b
RJ
308 MESSAGE("DbgPrint says: %s",buf);
309 /* hmm, raise exception? */
310 return STATUS_SUCCESS;
311}
312
313
314/******************************************************************************
bf5539bb 315 * DbgPrintEx [NTDLL.@]
43b9f97b
RJ
316 */
317NTSTATUS WINAPIV DbgPrintEx(ULONG iComponentId, ULONG Level, LPCSTR fmt, ...)
318{
55ad6cc5
AJ
319 NTSTATUS ret;
320 va_list args;
43b9f97b 321
55ad6cc5
AJ
322 va_start(args, fmt);
323 ret = vDbgPrintEx(iComponentId, Level, fmt, args);
324 va_end(args);
325 return ret;
326}
43b9f97b 327
55ad6cc5
AJ
328/******************************************************************************
329 * vDbgPrintEx [NTDLL.@]
330 */
331NTSTATUS WINAPI vDbgPrintEx( ULONG id, ULONG level, LPCSTR fmt, va_list args )
332{
333 return vDbgPrintExWithPrefix( "", id, level, fmt, args );
334}
335
336/******************************************************************************
337 * vDbgPrintExWithPrefix [NTDLL.@]
338 */
339NTSTATUS WINAPI vDbgPrintExWithPrefix( LPCSTR prefix, ULONG id, ULONG level, LPCSTR fmt, va_list args )
340{
341 char buf[1024];
342
343 vsprintf(buf, fmt, args);
344
345 switch (level & DPFLTR_MASK)
346 {
347 case DPFLTR_ERROR_LEVEL: ERR("%s%lx: %s", prefix, id, buf); break;
348 case DPFLTR_WARNING_LEVEL: WARN("%s%lx: %s", prefix, id, buf); break;
349 case DPFLTR_TRACE_LEVEL:
350 case DPFLTR_INFO_LEVEL:
351 default: TRACE("%s%lx: %s", prefix, id, buf); break;
352 }
353 return STATUS_SUCCESS;
3426d853 354}
3426d853 355
3426d853 356/******************************************************************************
3ca98239 357 * RtlAcquirePebLock [NTDLL.@]
3426d853 358 */
361943aa
AJ
359VOID WINAPI RtlAcquirePebLock(void)
360{
361 RtlEnterCriticalSection( &peb_lock );
3426d853
JS
362}
363
364/******************************************************************************
3ca98239 365 * RtlReleasePebLock [NTDLL.@]
3426d853 366 */
361943aa
AJ
367VOID WINAPI RtlReleasePebLock(void)
368{
369 RtlLeaveCriticalSection( &peb_lock );
3426d853
JS
370}
371
3426d853 372/******************************************************************************
3ca98239 373 * RtlNewSecurityObject [NTDLL.@]
3426d853 374 */
46d2886d
RR
375NTSTATUS WINAPI
376RtlNewSecurityObject( PSECURITY_DESCRIPTOR ParentDescriptor,
377 PSECURITY_DESCRIPTOR CreatorDescriptor,
378 PSECURITY_DESCRIPTOR *NewDescriptor,
379 BOOLEAN IsDirectoryObject,
380 HANDLE Token,
381 PGENERIC_MAPPING GenericMapping )
382{
383 FIXME("(%p %p %p %d %p %p) stub!\n", ParentDescriptor, CreatorDescriptor,
384 NewDescriptor, IsDirectoryObject, Token, GenericMapping);
385 return STATUS_NOT_IMPLEMENTED;
3426d853
JS
386}
387
388/******************************************************************************
3ca98239 389 * RtlDeleteSecurityObject [NTDLL.@]
3426d853 390 */
46d2886d
RR
391NTSTATUS WINAPI
392RtlDeleteSecurityObject( PSECURITY_DESCRIPTOR *ObjectDescriptor )
393{
394 FIXME("(%p) stub!\n", ObjectDescriptor);
395 return STATUS_NOT_IMPLEMENTED;
3426d853
JS
396}
397
3426d853 398/**************************************************************************
01d5e5b0 399 * _chkstk [NTDLL.@]
17fd4e38 400 *
3426d853
JS
401 * Glorified "enter xxxx".
402 */
f752be84 403#ifdef __i386__
50bbfb3c
AJ
404__ASM_GLOBAL_FUNC( _chkstk,
405 "negl %eax\n\t"
406 "addl %esp,%eax\n\t"
407 "xchgl %esp,%eax\n\t"
408 "movl 0(%eax),%eax\n\t" /* copy return address from old location */
409 "movl %eax,0(%esp)\n\t"
410 "ret" );
f752be84 411#endif
17fd4e38
PS
412
413/**************************************************************************
01d5e5b0 414 * _alloca_probe [NTDLL.@]
17fd4e38
PS
415 *
416 * Glorified "enter xxxx".
417 */
f752be84 418#ifdef __i386__
50bbfb3c
AJ
419__ASM_GLOBAL_FUNC( _alloca_probe,
420 "negl %eax\n\t"
421 "addl %esp,%eax\n\t"
422 "xchgl %esp,%eax\n\t"
423 "movl 0(%eax),%eax\n\t" /* copy return address from old location */
424 "movl %eax,0(%esp)\n\t"
425 "ret" );
f752be84
AJ
426#endif
427
3426d853 428
9f50d049 429/******************************************************************************
ccf2f616 430 * RtlInitializeGenericTable [NTDLL.@]
9f50d049 431 */
ccf2f616 432PVOID WINAPI RtlInitializeGenericTable(PVOID pTable, PVOID arg2, PVOID arg3, PVOID arg4, PVOID arg5)
9f50d049 433{
ccf2f616
JG
434 FIXME("(%p,%p,%p,%p,%p) stub!\n", pTable, arg2, arg3, arg4, arg5);
435 return NULL;
9a624916 436}
9f50d049
JS
437
438/******************************************************************************
3ca98239 439 * RtlMoveMemory [NTDLL.@]
ccf2f616
JG
440 *
441 * Move a block of memory that may overlap.
442 *
443 * PARAMS
444 * Destination [O] End destination for block
445 * Source [O] Where to start copying from
446 * Length [I] Number of bytes to copy
447 *
448 * RETURNS
449 * Nothing.
9f50d049
JS
450 */
451#undef RtlMoveMemory
452VOID WINAPI RtlMoveMemory( VOID *Destination, CONST VOID *Source, SIZE_T Length )
453{
454 memmove(Destination, Source, Length);
455}
456
457/******************************************************************************
3ca98239 458 * RtlFillMemory [NTDLL.@]
ccf2f616
JG
459 *
460 * Set a block of memory with a value.
461 *
462 * PARAMS
463 * Destination [O] Block to fill
464 * Length [I] Number of bytes to fill
465 * Fill [I] Value to set
466 *
467 * RETURNS
468 * Nothing.
9f50d049
JS
469 */
470#undef RtlFillMemory
471VOID WINAPI RtlFillMemory( VOID *Destination, SIZE_T Length, BYTE Fill )
472{
473 memset(Destination, Fill, Length);
474}
475
476/******************************************************************************
3ca98239 477 * RtlZeroMemory [NTDLL.@]
ccf2f616
JG
478 *
479 * Set a block of memory with 0's.
480 *
481 * PARAMS
482 * Destination [O] Block to fill
483 * Length [I] Number of bytes to fill
484 *
485 * RETURNS
486 * Nothing.
9f50d049
JS
487 */
488#undef RtlZeroMemory
489VOID WINAPI RtlZeroMemory( VOID *Destination, SIZE_T Length )
490{
491 memset(Destination, 0, Length);
492}
493
494/******************************************************************************
3ca98239 495 * RtlCompareMemory [NTDLL.@]
ccf2f616
JG
496 *
497 * Compare one block of memory with another
498 *
499 * PARAMS
500 * Source1 [I] Source block
501 * Source2 [I] Block to compare to Source1
bf5539bb 502 * Length [I] Number of bytes to compare
ccf2f616
JG
503 *
504 * RETURNS
505 * The length of the first byte at which Source1 and Source2 differ, or Length
506 * if they are the same.
9f50d049
JS
507 */
508SIZE_T WINAPI RtlCompareMemory( const VOID *Source1, const VOID *Source2, SIZE_T Length)
509{
ccf2f616 510 SIZE_T i;
db525887 511 for(i=0; (i<Length) && (((const BYTE*)Source1)[i]==((const BYTE*)Source2)[i]); i++);
9f50d049
JS
512 return i;
513}
514
ccf2f616
JG
515/******************************************************************************
516 * RtlCompareMemoryUlong [NTDLL.@]
517 *
518 * Compare a block of memory with a value, a ULONG at a time
519 *
520 * PARAMS
521 * Source1 [I] Source block. This must be ULONG aligned
522 * Length [I] Number of bytes to compare. This should be a multiple of 4
523 * dwVal [I] Value to compare to
524 *
525 * RETURNS
526 * The byte position of the first byte at which Source1 is not dwVal.
527 */
528SIZE_T WINAPI RtlCompareMemoryUlong(const ULONG *Source1, SIZE_T Length, ULONG dwVal)
529{
530 SIZE_T i;
531 for(i = 0; i < Length/sizeof(ULONG) && Source1[i] == dwVal; i++);
532 return i * sizeof(ULONG);
533}
534
63e8bd5d 535/******************************************************************************
3ca98239 536 * RtlAssert [NTDLL.@]
63e8bd5d 537 *
ccf2f616
JG
538 * Fail a debug assertion.
539 *
540 * RETURNS
541 * Nothing. This call does not return control to its caller.
542 *
543 * NOTES
63e8bd5d
AM
544 * Not implemented in non-debug versions.
545 */
546void WINAPI RtlAssert(LPVOID x1,LPVOID x2,DWORD x3, DWORD x4)
547{
548 FIXME("(%p,%p,0x%08lx,0x%08lx),stub\n",x1,x2,x3,x4);
549}
08be8f06 550
1da29717
JG
551/*************************************************************************
552 * RtlFillMemoryUlong [NTDLL.@]
553 *
554 * Fill memory with a 32 bit (dword) value.
555 *
556 * PARAMS
557 * lpDest [I] Bitmap pointer
558 * ulCount [I] Number of dwords to write
559 * ulValue [I] Value to fill with
560 *
561 * RETURNS
562 * Nothing.
563 */
564VOID WINAPI RtlFillMemoryUlong(ULONG* lpDest, ULONG ulCount, ULONG ulValue)
565{
566 TRACE("(%p,%ld,%ld)\n", lpDest, ulCount, ulValue);
567
ccf2f616 568 ulCount /= sizeof(ULONG);
1da29717
JG
569 while(ulCount--)
570 *lpDest++ = ulValue;
571}
572
ccf2f616
JG
573/*********************************************************************
574 * RtlComputeCrc32 [NTDLL.@]
575 *
576 * Calculate the CRC32 checksum of a block of bytes
577 *
578 * PARAMS
579 * dwInitial [I] Initial CRC value
580 * pData [I] Data block
581 * iLen [I] Length of the byte block
582 *
583 * RETURNS
584 * The cumulative CRC32 of dwInitial and iLen bytes of the pData block.
585 */
586DWORD WINAPI RtlComputeCrc32(DWORD dwInitial, PBYTE pData, INT iLen)
587{
588 DWORD crc = ~dwInitial;
589
590 TRACE("(%ld,%p,%d)\n", dwInitial, pData, iLen);
591
592 while (iLen > 0)
593 {
594 crc = CRC_table[(crc ^ *pData) & 0xff] ^ (crc >> 8);
595 pData++;
596 iLen--;
597 }
598 return ~crc;
599}
6da4c275
AJ
600
601
602/*************************************************************************
603 * RtlUlonglongByteSwap [NTDLL.@]
604 *
605 * Swap the bytes of an unsigned long long value.
606 *
607 * PARAMS
608 * i [I] Value to swap bytes of
609 *
610 * RETURNS
611 * The value with its bytes swapped.
612 */
613ULONGLONG __cdecl RtlUlonglongByteSwap(ULONGLONG i)
614{
615 return ((ULONGLONG)RtlUlongByteSwap(i) << 32) | RtlUlongByteSwap(i>>32);
616}
617
618/*************************************************************************
619 * RtlUlongByteSwap [NTDLL.@]
620 *
621 * Swap the bytes of an unsigned int value.
622 *
623 * NOTES
624 * ix86 version takes argument in %ecx. Other systems use the inline version.
625 */
626#ifdef __i386__
a9bedef3 627__ASM_GLOBAL_FUNC(NTDLL_RtlUlongByteSwap,
6da4c275
AJ
628 "movl %ecx,%eax\n\t"
629 "bswap %eax\n\t"
630 "ret");
631#endif
632
633/*************************************************************************
634 * RtlUshortByteSwap [NTDLL.@]
635 *
636 * Swap the bytes of an unsigned short value.
637 *
638 * NOTES
639 * i386 version takes argument in %cx. Other systems use the inline version.
640 */
641#ifdef __i386__
a9bedef3 642__ASM_GLOBAL_FUNC(NTDLL_RtlUshortByteSwap,
6da4c275
AJ
643 "movb %ch,%al\n\t"
644 "movb %cl,%ah\n\t"
645 "ret");
646#endif
c83aa0d3
TM
647
648
649/*************************************************************************
650 * RtlUniform [NTDLL.@]
651 *
652 * Generates an uniform random number
653 *
654 * PARAMS
655 * seed [O] The seed of the Random function
656 *
657 * RETURNS
0ce4826e 658 * It returns a random number uniformly distributed over [0..MAXLONG-1].
c83aa0d3
TM
659 *
660 * NOTES
0ce4826e
TM
661 * Generates an uniform random number using D.H. Lehmer's 1948 algorithm.
662 * In our case the algorithm is:
663 *
bf5539bb
JG
664 *| result = (*seed * 0x7fffffed + 0x7fffffc3) % MAXLONG;
665 *|
666 *| *seed = result;
0ce4826e
TM
667 *
668 * DIFFERENCES
669 * The native documentation states that the random number is
670 * uniformly distributed over [0..MAXLONG]. In reality the native
671 * function and our function return a random number uniformly
672 * distributed over [0..MAXLONG-1].
c83aa0d3
TM
673 */
674ULONG WINAPI RtlUniform (PULONG seed)
675{
676 ULONG result;
677
0ce4826e
TM
678 /*
679 * Instead of the algorithm stated above, we use the algorithm
680 * below, which is totally equivalent (see the tests), but does
681 * not use a division and therefore is faster.
682 */
c83aa0d3
TM
683 result = *seed * 0xffffffed + 0x7fffffc3;
684 if (result == 0xffffffff || result == 0x7ffffffe) {
685 result = (result + 2) & MAXLONG;
686 } else if (result == 0x7fffffff) {
0ce4826e 687 result = 0;
c83aa0d3
TM
688 } else if ((result & 0x80000000) == 0) {
689 result = result + (~result & 1);
690 } else {
691 result = (result + (result & 1)) & MAXLONG;
692 } /* if */
693 *seed = result;
694 return result;
695}
0ce4826e
TM
696
697
698/*************************************************************************
699 * RtlRandom [NTDLL.@]
700 *
701 * Generates a random number
702 *
703 * PARAMS
704 * seed [O] The seed of the Random function
705 *
706 * RETURNS
707 * It returns a random number distributed over [0..MAXLONG-1].
708 */
709ULONG WINAPI RtlRandom (PULONG seed)
710{
711 static ULONG saved_value[128] =
712 { /* 0 */ 0x4c8bc0aa, 0x4c022957, 0x2232827a, 0x2f1e7626, 0x7f8bdafb, 0x5c37d02a, 0x0ab48f72, 0x2f0c4ffa,
713 /* 8 */ 0x290e1954, 0x6b635f23, 0x5d3885c0, 0x74b49ff8, 0x5155fa54, 0x6214ad3f, 0x111e9c29, 0x242a3a09,
714 /* 16 */ 0x75932ae1, 0x40ac432e, 0x54f7ba7a, 0x585ccbd5, 0x6df5c727, 0x0374dad1, 0x7112b3f1, 0x735fc311,
715 /* 24 */ 0x404331a9, 0x74d97781, 0x64495118, 0x323e04be, 0x5974b425, 0x4862e393, 0x62389c1d, 0x28a68b82,
716 /* 32 */ 0x0f95da37, 0x7a50bbc6, 0x09b0091c, 0x22cdb7b4, 0x4faaed26, 0x66417ccd, 0x189e4bfa, 0x1ce4e8dd,
717 /* 40 */ 0x5274c742, 0x3bdcf4dc, 0x2d94e907, 0x32eac016, 0x26d33ca3, 0x60415a8a, 0x31f57880, 0x68c8aa52,
718 /* 48 */ 0x23eb16da, 0x6204f4a1, 0x373927c1, 0x0d24eb7c, 0x06dd7379, 0x2b3be507, 0x0f9c55b1, 0x2c7925eb,
719 /* 56 */ 0x36d67c9a, 0x42f831d9, 0x5e3961cb, 0x65d637a8, 0x24bb3820, 0x4d08e33d, 0x2188754f, 0x147e409e,
720 /* 64 */ 0x6a9620a0, 0x62e26657, 0x7bd8ce81, 0x11da0abb, 0x5f9e7b50, 0x23e444b6, 0x25920c78, 0x5fc894f0,
721 /* 72 */ 0x5e338cbb, 0x404237fd, 0x1d60f80f, 0x320a1743, 0x76013d2b, 0x070294ee, 0x695e243b, 0x56b177fd,
722 /* 80 */ 0x752492e1, 0x6decd52f, 0x125f5219, 0x139d2e78, 0x1898d11e, 0x2f7ee785, 0x4db405d8, 0x1a028a35,
723 /* 88 */ 0x63f6f323, 0x1f6d0078, 0x307cfd67, 0x3f32a78a, 0x6980796c, 0x462b3d83, 0x34b639f2, 0x53fce379,
724 /* 96 */ 0x74ba50f4, 0x1abc2c4b, 0x5eeaeb8d, 0x335a7a0d, 0x3973dd20, 0x0462d66b, 0x159813ff, 0x1e4643fd,
725 /* 104 */ 0x06bc5c62, 0x3115e3fc, 0x09101613, 0x47af2515, 0x4f11ec54, 0x78b99911, 0x3db8dd44, 0x1ec10b9b,
726 /* 112 */ 0x5b5506ca, 0x773ce092, 0x567be81a, 0x5475b975, 0x7a2cde1a, 0x494536f5, 0x34737bb4, 0x76d9750b,
727 /* 120 */ 0x2a1f6232, 0x2e49644d, 0x7dddcbe7, 0x500cebdb, 0x619dab9e, 0x48c626fe, 0x1cda3193, 0x52dabe9d };
728 ULONG rand;
729 int pos;
730 ULONG result;
731
732 rand = (*seed * 0x7fffffed + 0x7fffffc3) % 0x7fffffff;
733 *seed = (rand * 0x7fffffed + 0x7fffffc3) % 0x7fffffff;
734 pos = *seed & 0x7f;
735 result = saved_value[pos];
736 saved_value[pos] = rand;
737 return(result);
738}
739
740
741/*************************************************************************
742 * RtlAreAllAccessesGranted [NTDLL.@]
743 *
744 * Check if all desired accesses are granted
745 *
746 * RETURNS
747 * TRUE: All desired accesses are granted
748 * FALSE: Otherwise
749 */
750BOOLEAN WINAPI RtlAreAllAccessesGranted(
751 ACCESS_MASK GrantedAccess,
752 ACCESS_MASK DesiredAccess)
753{
754 return (GrantedAccess & DesiredAccess) == DesiredAccess;
755}
756
757
758/*************************************************************************
759 * RtlAreAnyAccessesGranted [NTDLL.@]
760 *
761 * Check if at least one of the desired accesses is granted
762 *
bf5539bb
JG
763 * PARAMS
764 * GrantedAccess [I] Access mask of granted accesses
765 * DesiredAccess [I] Access mask of desired accesses
766 *
0ce4826e
TM
767 * RETURNS
768 * TRUE: At least one of the desired accesses is granted
769 * FALSE: Otherwise
770 */
771BOOLEAN WINAPI RtlAreAnyAccessesGranted(
772 ACCESS_MASK GrantedAccess,
773 ACCESS_MASK DesiredAccess)
774{
775 return (GrantedAccess & DesiredAccess) != 0;
776}
777
778
779/*************************************************************************
780 * RtlMapGenericMask [NTDLL.@]
781 *
782 * Determine the nongeneric access rights specified by an access mask
783 *
784 * RETURNS
785 * Nothing.
786 */
787void WINAPI RtlMapGenericMask(
788 PACCESS_MASK AccessMask,
789 const GENERIC_MAPPING *GenericMapping)
790{
791 if (*AccessMask & GENERIC_READ) {
792 *AccessMask |= GenericMapping->GenericRead;
793 } /* if */
794
795 if (*AccessMask & GENERIC_WRITE) {
796 *AccessMask |= GenericMapping->GenericWrite;
797 } /* if */
798
799 if (*AccessMask & GENERIC_EXECUTE) {
800 *AccessMask |= GenericMapping->GenericExecute;
801 } /* if */
802
803 if (*AccessMask & GENERIC_ALL) {
804 *AccessMask |= GenericMapping->GenericAll;
805 } /* if */
806
807 *AccessMask &= 0x0FFFFFFF;
808}
809
810
811/*************************************************************************
812 * RtlCopyLuid [NTDLL.@]
813 *
bf5539bb
JG
814 * Copy a local unique ID.
815 *
816 * PARAMS
817 * LuidDest [O] Destination for the copied Luid
818 * LuidSrc [I] Source Luid to copy to LuidDest
0ce4826e
TM
819 *
820 * RETURNS
821 * Nothing.
822 */
823void WINAPI RtlCopyLuid (PLUID LuidDest, const LUID *LuidSrc)
824{
825 *LuidDest = *LuidSrc;
826}
827
828
829/*************************************************************************
830 * RtlEqualLuid [NTDLL.@]
831 *
bf5539bb
JG
832 * Compare two local unique ID's.
833 *
834 * PARAMS
835 * Luid1 [I] First Luid to compare to Luid2
836 * Luid2 [I] Second Luid to compare to Luid1
0ce4826e
TM
837 *
838 * RETURNS
839 * TRUE: The two LUID's are equal.
840 * FALSE: Otherwise
841 */
842BOOLEAN WINAPI RtlEqualLuid (const LUID *Luid1, const LUID *Luid2)
843{
844 return (Luid1->LowPart == Luid2->LowPart && Luid1->HighPart == Luid2->HighPart);
845}
846
847
848/*************************************************************************
849 * RtlCopyLuidAndAttributesArray [NTDLL.@]
850 *
bf5539bb
JG
851 * Copy an array of local unique ID's and attributes.
852 *
853 * PARAMS
854 * Count [I] Number of Luid/attributes in Src
855 * Src [I] Source Luid/attributes to copy
856 * Dest [O] Destination for copied Luid/attributes
0ce4826e
TM
857 *
858 * RETURNS
859 * Nothing.
bf5539bb
JG
860 *
861 * NOTES
862 * Dest must be large enough to hold Src.
0ce4826e
TM
863 */
864void WINAPI RtlCopyLuidAndAttributesArray(
865 ULONG Count,
866 const LUID_AND_ATTRIBUTES *Src,
867 PLUID_AND_ATTRIBUTES Dest)
868{
869 ULONG i;
870
871 for (i = 0; i < Count; i++) Dest[i] = Src[i];
872}
e21aff07
JD
873
874NTSTATUS WINAPI RtlIpv4StringToAddressExW(PULONG IP, PULONG Port,
875 LPCWSTR Buffer, PULONG MaxSize)
876{
877 FIXME("(%p,%p,%p,%p): stub\n", IP, Port, Buffer, MaxSize);
878
879 return STATUS_SUCCESS;
880}
881
882NTSTATUS WINAPI RtlIpv4AddressToStringExW (PULONG IP, PULONG Port,
883 LPWSTR Buffer, PULONG MaxSize)
884{
885 FIXME("(%p,%p,%p,%p): stub\n", IP, Port, Buffer, MaxSize);
886
887 return STATUS_SUCCESS;
888}