]>
Commit | Line | Data |
---|---|---|
c06ad33e | 1 | /** @file\r |
86da563d ED |
2 | Utility functions used by the Dp application.\r |
3 | \r | |
5d2afd44 | 4 | Copyright (c) 2009 - 2016, Intel Corporation. All rights reserved.<BR>\r |
0cd1e699 | 5 | (C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>\r |
86da563d ED |
6 | This program and the accompanying materials\r |
7 | are licensed and made available under the terms and conditions of the BSD License\r | |
8 | which accompanies this distribution. The full text of the license may be found at\r | |
9 | http://opensource.org/licenses/bsd-license.php\r | |
10 | \r | |
11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
c06ad33e | 13 | **/\r |
14 | \r | |
15 | #include <Library/BaseLib.h>\r | |
16 | #include <Library/BaseMemoryLib.h>\r | |
17 | #include <Library/MemoryAllocationLib.h>\r | |
18 | #include <Library/DebugLib.h>\r | |
19 | #include <Library/UefiBootServicesTableLib.h>\r | |
20 | #include <Library/TimerLib.h>\r | |
21 | #include <Library/PeCoffGetEntryPointLib.h>\r | |
22 | #include <Library/PrintLib.h>\r | |
23 | #include <Library/HiiLib.h>\r | |
24 | #include <Library/PcdLib.h>\r | |
a2daf8db SZ |
25 | #include <Library/UefiLib.h>\r |
26 | #include <Library/DevicePathLib.h>\r | |
27 | \r | |
28 | #include <Pi/PiFirmwareFile.h>\r | |
29 | #include <Library/DxeServicesLib.h>\r | |
c06ad33e | 30 | \r |
31 | #include <Protocol/LoadedImage.h>\r | |
16d5d168 | 32 | #include <Protocol/DriverBinding.h>\r |
a2daf8db SZ |
33 | #include <Protocol/ComponentName2.h>\r |
34 | #include <Protocol/DevicePath.h>\r | |
c06ad33e | 35 | \r |
36 | #include <Guid/Performance.h>\r | |
37 | \r | |
38 | #include "Dp.h"\r | |
39 | #include "Literals.h"\r | |
40 | #include "DpInternal.h"\r | |
41 | \r | |
a2daf8db SZ |
42 | /**\r |
43 | Wrap original FreePool to check NULL pointer first.\r | |
44 | \r | |
45 | @param[in] Buffer The pointer to the buffer to free.\r | |
46 | \r | |
47 | **/\r | |
48 | VOID\r | |
49 | SafeFreePool (\r | |
50 | IN VOID *Buffer\r | |
51 | )\r | |
52 | {\r | |
53 | if (Buffer != NULL) {\r | |
54 | FreePool (Buffer);\r | |
55 | }\r | |
56 | }\r | |
57 | \r | |
9dd74618 ED |
58 | /** \r |
59 | Calculate an event's duration in timer ticks.\r | |
60 | \r | |
61 | Given the count direction and the event's start and end timer values,\r | |
62 | calculate the duration of the event in timer ticks. Information for\r | |
63 | the current measurement is pointed to by the parameter.\r | |
64 | \r | |
65 | If the measurement's start time is 1, it indicates that the developer\r | |
66 | is indicating that the measurement began at the release of reset.\r | |
67 | The start time is adjusted to the timer's starting count before performing\r | |
68 | the elapsed time calculation.\r | |
69 | \r | |
70 | The calculated duration, in ticks, is the absolute difference between\r | |
71 | the measurement's ending and starting counts.\r | |
72 | \r | |
73 | @param Measurement Pointer to a MEASUREMENT_RECORD structure containing\r | |
74 | data for the current measurement.\r | |
75 | \r | |
76 | @return The 64-bit duration of the event.\r | |
c06ad33e | 77 | **/\r |
78 | UINT64\r | |
79 | GetDuration (\r | |
80 | IN OUT MEASUREMENT_RECORD *Measurement\r | |
81 | )\r | |
82 | {\r | |
83 | UINT64 Duration;\r | |
84 | BOOLEAN Error;\r | |
85 | \r | |
0cd1e699 CS |
86 | if (Measurement->EndTimeStamp == 0) {\r |
87 | return 0;\r | |
88 | }\r | |
89 | \r | |
c06ad33e | 90 | // PERF_START macros are called with a value of 1 to indicate\r |
91 | // the beginning of time. So, adjust the start ticker value\r | |
92 | // to the real beginning of time.\r | |
93 | // Assumes no wraparound. Even then, there is a very low probability\r | |
94 | // of having a valid StartTicker value of 1.\r | |
95 | if (Measurement->StartTimeStamp == 1) {\r | |
96 | Measurement->StartTimeStamp = TimerInfo.StartCount;\r | |
97 | }\r | |
98 | if (TimerInfo.CountUp) {\r | |
99 | Duration = Measurement->EndTimeStamp - Measurement->StartTimeStamp;\r | |
100 | Error = (BOOLEAN)(Duration > Measurement->EndTimeStamp);\r | |
101 | }\r | |
102 | else {\r | |
103 | Duration = Measurement->StartTimeStamp - Measurement->EndTimeStamp;\r | |
104 | Error = (BOOLEAN)(Duration > Measurement->StartTimeStamp);\r | |
105 | }\r | |
106 | \r | |
107 | if (Error) {\r | |
108 | DEBUG ((EFI_D_ERROR, ALit_TimerLibError));\r | |
109 | Duration = 0;\r | |
110 | }\r | |
111 | return Duration;\r | |
112 | }\r | |
113 | \r | |
9dd74618 ED |
114 | /** \r |
115 | Determine whether the Measurement record is for an EFI Phase.\r | |
116 | \r | |
117 | The Token and Module members of the measurement record are checked.\r | |
118 | Module must be empty and Token must be one of SEC, PEI, DXE, BDS, or SHELL.\r | |
119 | \r | |
120 | @param[in] Measurement A pointer to the Measurement record to test.\r | |
121 | \r | |
122 | @retval TRUE The measurement record is for an EFI Phase.\r | |
123 | @retval FALSE The measurement record is NOT for an EFI Phase.\r | |
c06ad33e | 124 | **/\r |
125 | BOOLEAN\r | |
126 | IsPhase(\r | |
127 | IN MEASUREMENT_RECORD *Measurement\r | |
128 | )\r | |
129 | {\r | |
130 | BOOLEAN RetVal;\r | |
131 | \r | |
132 | RetVal = (BOOLEAN)( ( *Measurement->Module == '\0') &&\r | |
133 | ((AsciiStrnCmp (Measurement->Token, ALit_SEC, PERF_TOKEN_LENGTH) == 0) ||\r | |
134 | (AsciiStrnCmp (Measurement->Token, ALit_PEI, PERF_TOKEN_LENGTH) == 0) ||\r | |
135 | (AsciiStrnCmp (Measurement->Token, ALit_DXE, PERF_TOKEN_LENGTH) == 0) ||\r | |
136 | (AsciiStrnCmp (Measurement->Token, ALit_BDS, PERF_TOKEN_LENGTH) == 0))\r | |
137 | );\r | |
138 | return RetVal;\r | |
139 | }\r | |
140 | \r | |
9dd74618 ED |
141 | /** \r |
142 | Get the file name portion of the Pdb File Name.\r | |
143 | \r | |
144 | The portion of the Pdb File Name between the last backslash and\r | |
145 | either a following period or the end of the string is converted\r | |
146 | to Unicode and copied into UnicodeBuffer. The name is truncated,\r | |
147 | if necessary, to ensure that UnicodeBuffer is not overrun.\r | |
148 | \r | |
149 | @param[in] PdbFileName Pdb file name.\r | |
150 | @param[out] UnicodeBuffer The resultant Unicode File Name.\r | |
151 | \r | |
c06ad33e | 152 | **/\r |
153 | VOID\r | |
154 | GetShortPdbFileName (\r | |
155 | IN CHAR8 *PdbFileName,\r | |
156 | OUT CHAR16 *UnicodeBuffer\r | |
157 | )\r | |
158 | {\r | |
159 | UINTN IndexA; // Current work location within an ASCII string.\r | |
160 | UINTN IndexU; // Current work location within a Unicode string.\r | |
161 | UINTN StartIndex;\r | |
162 | UINTN EndIndex;\r | |
163 | \r | |
269e0aeb | 164 | ZeroMem (UnicodeBuffer, (DP_GAUGE_STRING_LENGTH + 1) * sizeof (CHAR16));\r |
c06ad33e | 165 | \r |
166 | if (PdbFileName == NULL) {\r | |
269e0aeb | 167 | StrCpyS (UnicodeBuffer, DP_GAUGE_STRING_LENGTH + 1, L" ");\r |
c06ad33e | 168 | } else {\r |
169 | StartIndex = 0;\r | |
170 | for (EndIndex = 0; PdbFileName[EndIndex] != 0; EndIndex++)\r | |
171 | ;\r | |
172 | for (IndexA = 0; PdbFileName[IndexA] != 0; IndexA++) {\r | |
173 | if (PdbFileName[IndexA] == '\\') {\r | |
174 | StartIndex = IndexA + 1;\r | |
175 | }\r | |
176 | \r | |
177 | if (PdbFileName[IndexA] == '.') {\r | |
178 | EndIndex = IndexA;\r | |
179 | }\r | |
180 | }\r | |
181 | \r | |
182 | IndexU = 0;\r | |
183 | for (IndexA = StartIndex; IndexA < EndIndex; IndexA++) {\r | |
184 | UnicodeBuffer[IndexU] = (CHAR16) PdbFileName[IndexA];\r | |
185 | IndexU++;\r | |
269e0aeb HW |
186 | if (IndexU >= DP_GAUGE_STRING_LENGTH) {\r |
187 | UnicodeBuffer[DP_GAUGE_STRING_LENGTH] = 0;\r | |
c06ad33e | 188 | break;\r |
189 | }\r | |
190 | }\r | |
191 | }\r | |
192 | }\r | |
193 | \r | |
9dd74618 ED |
194 | /** \r |
195 | Get a human readable name for an image handle.\r | |
a2daf8db SZ |
196 | The following methods will be tried orderly:\r |
197 | 1. Image PDB\r | |
198 | 2. ComponentName2 protocol\r | |
199 | 3. FFS UI section\r | |
200 | 4. Image GUID\r | |
201 | 5. Image DevicePath\r | |
202 | 6. Unknown Driver Name\r | |
203 | \r | |
9dd74618 | 204 | @param[in] Handle\r |
a2daf8db | 205 | \r |
9dd74618 ED |
206 | @post The resulting Unicode name string is stored in the\r |
207 | mGaugeString global array.\r | |
a2daf8db | 208 | \r |
c06ad33e | 209 | **/\r |
210 | VOID\r | |
211 | GetNameFromHandle (\r | |
212 | IN EFI_HANDLE Handle\r | |
213 | )\r | |
214 | {\r | |
215 | EFI_STATUS Status;\r | |
216 | EFI_LOADED_IMAGE_PROTOCOL *Image;\r | |
217 | CHAR8 *PdbFileName;\r | |
218 | EFI_DRIVER_BINDING_PROTOCOL *DriverBinding;\r | |
219 | EFI_STRING StringPtr;\r | |
a2daf8db SZ |
220 | EFI_DEVICE_PATH_PROTOCOL *LoadedImageDevicePath;\r |
221 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
222 | EFI_GUID *NameGuid;\r | |
223 | CHAR16 *NameString;\r | |
224 | UINTN StringSize;\r | |
225 | CHAR8 *PlatformLanguage;\r | |
10516d29 | 226 | CHAR8 *BestLanguage;\r |
a2daf8db | 227 | EFI_COMPONENT_NAME2_PROTOCOL *ComponentName2;\r |
c06ad33e | 228 | \r |
5d2afd44 SZ |
229 | Image = NULL;\r |
230 | LoadedImageDevicePath = NULL;\r | |
231 | DevicePath = NULL;\r | |
10516d29 ED |
232 | BestLanguage = NULL;\r |
233 | PlatformLanguage = NULL;\r | |
234 | \r | |
a2daf8db SZ |
235 | //\r |
236 | // Method 1: Get the name string from image PDB\r | |
c06ad33e | 237 | //\r |
238 | Status = gBS->HandleProtocol (\r | |
a2daf8db SZ |
239 | Handle,\r |
240 | &gEfiLoadedImageProtocolGuid,\r | |
241 | (VOID **) &Image\r | |
242 | );\r | |
c06ad33e | 243 | \r |
244 | if (EFI_ERROR (Status)) {\r | |
245 | Status = gBS->OpenProtocol (\r | |
a2daf8db SZ |
246 | Handle,\r |
247 | &gEfiDriverBindingProtocolGuid,\r | |
248 | (VOID **) &DriverBinding,\r | |
249 | NULL,\r | |
250 | NULL,\r | |
251 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
252 | );\r | |
253 | if (!EFI_ERROR (Status)) {\r | |
254 | Status = gBS->HandleProtocol (\r | |
255 | DriverBinding->ImageHandle,\r | |
256 | &gEfiLoadedImageProtocolGuid,\r | |
257 | (VOID **) &Image\r | |
258 | );\r | |
259 | }\r | |
260 | }\r | |
261 | \r | |
262 | if (!EFI_ERROR (Status)) {\r | |
263 | PdbFileName = PeCoffLoaderGetPdbPointer (Image->ImageBase);\r | |
264 | \r | |
265 | if (PdbFileName != NULL) {\r | |
266 | GetShortPdbFileName (PdbFileName, mGaugeString);\r | |
267 | return;\r | |
268 | }\r | |
269 | }\r | |
270 | \r | |
271 | //\r | |
272 | // Method 2: Get the name string from ComponentName2 protocol\r | |
273 | //\r | |
274 | Status = gBS->HandleProtocol (\r | |
c06ad33e | 275 | Handle,\r |
a2daf8db SZ |
276 | &gEfiComponentName2ProtocolGuid,\r |
277 | (VOID **) &ComponentName2\r | |
c06ad33e | 278 | );\r |
a2daf8db SZ |
279 | if (!EFI_ERROR (Status)) {\r |
280 | //\r | |
281 | // Get the current platform language setting\r | |
282 | //\r | |
f01b91ae | 283 | GetEfiGlobalVariable2 (L"PlatformLang", (VOID**)&PlatformLanguage, NULL);\r |
10516d29 ED |
284 | \r |
285 | BestLanguage = GetBestLanguage(\r | |
286 | ComponentName2->SupportedLanguages,\r | |
287 | FALSE,\r | |
288 | PlatformLanguage,\r | |
289 | ComponentName2->SupportedLanguages,\r | |
290 | NULL\r | |
291 | );\r | |
292 | \r | |
293 | SafeFreePool (PlatformLanguage);\r | |
a2daf8db SZ |
294 | Status = ComponentName2->GetDriverName (\r |
295 | ComponentName2,\r | |
10516d29 | 296 | BestLanguage,\r |
a2daf8db SZ |
297 | &StringPtr\r |
298 | );\r | |
10516d29 | 299 | SafeFreePool (BestLanguage);\r |
a2daf8db | 300 | if (!EFI_ERROR (Status)) {\r |
6bc4e42f | 301 | StrnCpyS (\r |
ecd58a25 HW |
302 | mGaugeString,\r |
303 | DP_GAUGE_STRING_LENGTH + 1,\r | |
6bc4e42f HW |
304 | StringPtr,\r |
305 | DP_GAUGE_STRING_LENGTH\r | |
ecd58a25 | 306 | );\r |
a2daf8db | 307 | return;\r |
c06ad33e | 308 | }\r |
a2daf8db | 309 | }\r |
c06ad33e | 310 | \r |
a2daf8db SZ |
311 | Status = gBS->HandleProtocol (\r |
312 | Handle,\r | |
313 | &gEfiLoadedImageDevicePathProtocolGuid,\r | |
314 | (VOID **) &LoadedImageDevicePath\r | |
c06ad33e | 315 | );\r |
7ea7eee3 | 316 | if (!EFI_ERROR (Status) && (LoadedImageDevicePath != NULL)) {\r |
a2daf8db | 317 | DevicePath = LoadedImageDevicePath;\r |
5d2afd44 SZ |
318 | } else if (Image != NULL) {\r |
319 | DevicePath = Image->FilePath;\r | |
320 | }\r | |
c06ad33e | 321 | \r |
5d2afd44 | 322 | if (DevicePath != NULL) {\r |
a2daf8db | 323 | //\r |
5d2afd44 | 324 | // Try to get image GUID from image DevicePath\r |
a2daf8db SZ |
325 | //\r |
326 | NameGuid = NULL;\r | |
327 | while (!IsDevicePathEndType (DevicePath)) {\r | |
328 | NameGuid = EfiGetNameGuidFromFwVolDevicePathNode ((MEDIA_FW_VOL_FILEPATH_DEVICE_PATH *) DevicePath);\r | |
329 | if (NameGuid != NULL) {\r | |
330 | break;\r | |
331 | }\r | |
332 | DevicePath = NextDevicePathNode (DevicePath);\r | |
333 | }\r | |
c06ad33e | 334 | \r |
a2daf8db SZ |
335 | if (NameGuid != NULL) {\r |
336 | //\r | |
337 | // Try to get the image's FFS UI section by image GUID\r | |
338 | //\r | |
339 | NameString = NULL;\r | |
340 | StringSize = 0;\r | |
341 | Status = GetSectionFromAnyFv (\r | |
342 | NameGuid,\r | |
343 | EFI_SECTION_USER_INTERFACE,\r | |
344 | 0,\r | |
f7fe94ab | 345 | (VOID **) &NameString,\r |
a2daf8db SZ |
346 | &StringSize\r |
347 | );\r | |
348 | \r | |
349 | if (!EFI_ERROR (Status)) {\r | |
350 | //\r | |
351 | // Method 3. Get the name string from FFS UI section\r | |
352 | //\r | |
6bc4e42f | 353 | StrnCpyS (\r |
ecd58a25 HW |
354 | mGaugeString,\r |
355 | DP_GAUGE_STRING_LENGTH + 1,\r | |
6bc4e42f HW |
356 | NameString,\r |
357 | DP_GAUGE_STRING_LENGTH\r | |
ecd58a25 | 358 | );\r |
a2daf8db SZ |
359 | FreePool (NameString);\r |
360 | } else {\r | |
361 | //\r | |
362 | // Method 4: Get the name string from image GUID\r | |
363 | //\r | |
364 | UnicodeSPrint (mGaugeString, sizeof (mGaugeString), L"%g", NameGuid);\r | |
365 | }\r | |
366 | return;\r | |
367 | } else {\r | |
368 | //\r | |
369 | // Method 5: Get the name string from image DevicePath\r | |
370 | //\r | |
5d2afd44 | 371 | NameString = ConvertDevicePathToText (DevicePath, TRUE, FALSE);\r |
863986b3 | 372 | if (NameString != NULL) {\r |
6bc4e42f | 373 | StrnCpyS (\r |
ecd58a25 HW |
374 | mGaugeString,\r |
375 | DP_GAUGE_STRING_LENGTH + 1,\r | |
6bc4e42f HW |
376 | NameString,\r |
377 | DP_GAUGE_STRING_LENGTH\r | |
ecd58a25 | 378 | );\r |
863986b3 RN |
379 | FreePool (NameString);\r |
380 | return;\r | |
a2daf8db SZ |
381 | }\r |
382 | }\r | |
c06ad33e | 383 | }\r |
a2daf8db SZ |
384 | \r |
385 | //\r | |
386 | // Method 6: Unknown Driver Name\r | |
387 | //\r | |
388 | StringPtr = HiiGetString (gHiiHandle, STRING_TOKEN (STR_DP_ERROR_NAME), NULL);\r | |
389 | ASSERT (StringPtr != NULL);\r | |
ecd58a25 | 390 | StrCpyS (mGaugeString, DP_GAUGE_STRING_LENGTH + 1, StringPtr);\r |
88359546 | 391 | FreePool (StringPtr);\r |
a2daf8db | 392 | return;\r |
c06ad33e | 393 | }\r |
394 | \r | |
9dd74618 ED |
395 | /** \r |
396 | Calculate the Duration in microseconds.\r | |
397 | \r | |
398 | Duration is multiplied by 1000, instead of Frequency being divided by 1000 or\r | |
399 | multiplying the result by 1000, in order to maintain precision. Since Duration is\r | |
400 | a 64-bit value, multiplying it by 1000 is unlikely to produce an overflow.\r | |
401 | \r | |
402 | The time is calculated as (Duration * 1000) / Timer_Frequency.\r | |
403 | \r | |
404 | @param[in] Duration The event duration in timer ticks.\r | |
405 | \r | |
406 | @return A 64-bit value which is the Elapsed time in microseconds.\r | |
c06ad33e | 407 | **/\r |
408 | UINT64\r | |
409 | DurationInMicroSeconds (\r | |
410 | IN UINT64 Duration\r | |
411 | )\r | |
412 | {\r | |
413 | UINT64 Temp;\r | |
414 | \r | |
415 | Temp = MultU64x32 (Duration, 1000);\r | |
416 | return DivU64x32 (Temp, TimerInfo.Frequency);\r | |
417 | }\r | |
418 | \r | |
9dd74618 ED |
419 | /** \r |
420 | Formatted Print using a Hii Token to reference the localized format string.\r | |
421 | \r | |
422 | @param[in] Token A HII token associated with a localized Unicode string.\r | |
423 | @param[in] ... The variable argument list.\r | |
424 | \r | |
425 | @return The number of characters converted by UnicodeVSPrint().\r | |
426 | \r | |
c06ad33e | 427 | **/\r |
428 | UINTN\r | |
f85acc22 | 429 | EFIAPI\r |
c06ad33e | 430 | PrintToken (\r |
431 | IN UINT16 Token,\r | |
432 | ...\r | |
433 | )\r | |
434 | {\r | |
435 | VA_LIST Marker;\r | |
436 | EFI_STRING StringPtr;\r | |
437 | UINTN Return;\r | |
438 | UINTN BufferSize;\r | |
439 | \r | |
440 | StringPtr = HiiGetString (gHiiHandle, Token, NULL);\r | |
441 | ASSERT (StringPtr != NULL);\r | |
442 | \r | |
443 | VA_START (Marker, Token);\r | |
444 | \r | |
445 | BufferSize = (PcdGet32 (PcdUefiLibMaxPrintBufferSize) + 1) * sizeof (CHAR16);\r | |
446 | \r | |
447 | if (mPrintTokenBuffer == NULL) {\r | |
448 | mPrintTokenBuffer = AllocatePool (BufferSize);\r | |
449 | ASSERT (mPrintTokenBuffer != NULL);\r | |
450 | }\r | |
451 | SetMem( mPrintTokenBuffer, BufferSize, 0);\r | |
452 | \r | |
453 | Return = UnicodeVSPrint (mPrintTokenBuffer, BufferSize, StringPtr, Marker);\r | |
3bbe68a3 | 454 | VA_END (Marker);\r |
455 | \r | |
c06ad33e | 456 | if (Return > 0 && gST->ConOut != NULL) {\r |
457 | gST->ConOut->OutputString (gST->ConOut, mPrintTokenBuffer);\r | |
458 | }\r | |
88359546 | 459 | FreePool (StringPtr);\r |
c06ad33e | 460 | return Return;\r |
461 | }\r | |
462 | \r | |
9dd74618 ED |
463 | /** \r |
464 | Get index of Measurement Record's match in the CumData array.\r | |
465 | \r | |
466 | If the Measurement's Token value matches a Token in one of the CumData\r | |
467 | records, the index of the matching record is returned. The returned\r | |
468 | index is a signed value so that negative values can indicate that\r | |
469 | the Measurement didn't match any entry in the CumData array.\r | |
470 | \r | |
471 | @param[in] Measurement A pointer to a Measurement Record to match against the CumData array.\r | |
472 | \r | |
473 | @retval <0 Token is not in the CumData array.\r | |
474 | @retval >=0 Return value is the index into CumData where Token is found.\r | |
c06ad33e | 475 | **/\r |
476 | INTN\r | |
477 | GetCumulativeItem(\r | |
478 | IN MEASUREMENT_RECORD *Measurement\r | |
479 | )\r | |
480 | {\r | |
481 | INTN Index;\r | |
482 | \r | |
483 | for( Index = 0; Index < (INTN)NumCum; ++Index) {\r | |
484 | if (AsciiStrnCmp (Measurement->Token, CumData[Index].Name, PERF_TOKEN_LENGTH) == 0) {\r | |
485 | return Index; // Exit, we found a match\r | |
486 | }\r | |
487 | }\r | |
488 | // If the for loop exits, Token was not found.\r | |
489 | return -1; // Indicate failure\r | |
490 | }\r |