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Issue 9227007: Version 3.8.6 (Closed) Base URL: http://v8.googlecode.com/svn/trunk/
Patch Set: Created 8 years, 11 months ago
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1 // Copyright 2006-2011 the V8 project authors. All rights reserved. 1 // Copyright 2006-2011 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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54 54
55 55
56 double ceiling(double x) { 56 double ceiling(double x) {
57 return ceil(x); 57 return ceil(x);
58 } 58 }
59 59
60 60
61 static Mutex* limit_mutex = NULL; 61 static Mutex* limit_mutex = NULL;
62 62
63 63
64 void OS::Setup() { 64 void OS::SetUp() {
65 // Seed the random number generator. 65 // Seed the random number generator.
66 // Convert the current time to a 64-bit integer first, before converting it 66 // Convert the current time to a 64-bit integer first, before converting it
67 // to an unsigned. Going directly can cause an overflow and the seed to be 67 // to an unsigned. Going directly can cause an overflow and the seed to be
68 // set to all ones. The seed will be identical for different instances that 68 // set to all ones. The seed will be identical for different instances that
69 // call this setup code within the same millisecond. 69 // call this setup code within the same millisecond.
70 uint64_t seed = static_cast<uint64_t>(TimeCurrentMillis()); 70 uint64_t seed = static_cast<uint64_t>(TimeCurrentMillis());
71 srandom(static_cast<unsigned int>(seed)); 71 srandom(static_cast<unsigned int>(seed));
72 limit_mutex = CreateMutex(); 72 limit_mutex = CreateMutex();
73 } 73 }
74 74
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283 // for a zero-length string because we know that we at least read the 283 // for a zero-length string because we know that we at least read the
284 // '/' character. 284 // '/' character.
285 lib_name[strlen(lib_name) - 1] = '\0'; 285 lib_name[strlen(lib_name) - 1] = '\0';
286 } else { 286 } else {
287 // No library name found, just record the raw address range. 287 // No library name found, just record the raw address range.
288 snprintf(lib_name, kLibNameLen, 288 snprintf(lib_name, kLibNameLen,
289 "%08" V8PRIxPTR "-%08" V8PRIxPTR, start, end); 289 "%08" V8PRIxPTR "-%08" V8PRIxPTR, start, end);
290 } 290 }
291 LOG(isolate, SharedLibraryEvent(lib_name, start, end)); 291 LOG(isolate, SharedLibraryEvent(lib_name, start, end));
292 } else { 292 } else {
293 // Entry not describing executable data. Skip to end of line to setup 293 // Entry not describing executable data. Skip to end of line to set up
294 // reading the next entry. 294 // reading the next entry.
295 do { 295 do {
296 c = getc(fp); 296 c = getc(fp);
297 } while ((c != EOF) && (c != '\n')); 297 } while ((c != EOF) && (c != '\n'));
298 if (c == EOF) break; 298 if (c == EOF) break;
299 } 299 }
300 } 300 }
301 free(lib_name); 301 free(lib_name);
302 fclose(fp); 302 fclose(fp);
303 } 303 }
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754 754
755 755
756 void Sampler::Stop() { 756 void Sampler::Stop() {
757 ASSERT(IsActive()); 757 ASSERT(IsActive());
758 SamplerThread::RemoveActiveSampler(this); 758 SamplerThread::RemoveActiveSampler(this);
759 SetActive(false); 759 SetActive(false);
760 } 760 }
761 761
762 762
763 } } // namespace v8::internal 763 } } // namespace v8::internal
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