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Issue 18842: Experimental: periodic merge of the bleeding_edge branch to the... (Closed) Base URL: http://v8.googlecode.com/svn/branches/experimental/toiger/
Patch Set: Created 11 years, 11 months ago
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1 // Copyright 2006-2008 the V8 project authors. All rights reserved. 1 // Copyright 2006-2008 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
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192 192
193 char* OS::StrDup(const char* str) { 193 char* OS::StrDup(const char* str) {
194 return strdup(str); 194 return strdup(str);
195 } 195 }
196 196
197 197
198 char* OS::StrNDup(const char* str, size_t n) { 198 char* OS::StrNDup(const char* str, size_t n) {
199 // Stupid implementation of strndup since macos isn't born with 199 // Stupid implementation of strndup since macos isn't born with
200 // one. 200 // one.
201 size_t len = strlen(str); 201 size_t len = strlen(str);
202 if (len <= n) 202 if (len <= n) {
203 return StrDup(str); 203 return StrDup(str);
204 }
204 char* result = new char[n+1]; 205 char* result = new char[n+1];
205 size_t i; 206 size_t i;
206 for (i = 0; i <= n; i++) 207 for (i = 0; i <= n; i++) {
207 result[i] = str[i]; 208 result[i] = str[i];
209 }
208 result[i] = '\0'; 210 result[i] = '\0';
209 return result; 211 return result;
210 } 212 }
211 213
212 214
213 // We keep the lowest and highest addresses mapped as a quick way of 215 // We keep the lowest and highest addresses mapped as a quick way of
214 // determining that pointers are outside the heap (used mostly in assertions 216 // determining that pointers are outside the heap (used mostly in assertions
215 // and verification). The estimate is conservative, ie, not all addresses in 217 // and verification). The estimate is conservative, ie, not all addresses in
216 // 'allocated' space are actually allocated to our heap. The range is 218 // 'allocated' space are actually allocated to our heap. The range is
217 // [lowest, highest), inclusive on the low and and exclusive on the high end. 219 // [lowest, highest), inclusive on the low and and exclusive on the high end.
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252 return mbase; 254 return mbase;
253 } 255 }
254 256
255 257
256 void OS::Free(void* buf, const size_t length) { 258 void OS::Free(void* buf, const size_t length) {
257 // TODO(1240712): munmap has a return value which is ignored here. 259 // TODO(1240712): munmap has a return value which is ignored here.
258 munmap(buf, length); 260 munmap(buf, length);
259 } 261 }
260 262
261 263
262 void OS::Sleep(int miliseconds) { 264 void OS::Sleep(int milliseconds) {
263 usleep(1000 * miliseconds); 265 usleep(1000 * milliseconds);
264 } 266 }
265 267
266 268
267 void OS::Abort() { 269 void OS::Abort() {
268 // Redirect to std abort to signal abnormal program termination 270 // Redirect to std abort to signal abnormal program termination
269 abort(); 271 abort();
270 } 272 }
271 273
272 274
273 void OS::DebugBreak() { 275 void OS::DebugBreak() {
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653 } 655 }
654 656
655 // This sampler is no longer the active sampler. 657 // This sampler is no longer the active sampler.
656 active_sampler_ = NULL; 658 active_sampler_ = NULL;
657 active_ = false; 659 active_ = false;
658 } 660 }
659 661
660 #endif // ENABLE_LOGGING_AND_PROFILING 662 #endif // ENABLE_LOGGING_AND_PROFILING
661 663
662 } } // namespace v8::internal 664 } } // namespace v8::internal
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