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      1 // Copyright 2011 the V8 project authors. All rights reserved.
      2 // Redistribution and use in source and binary forms, with or without
      3 // modification, are permitted provided that the following conditions are
      4 // met:
      5 //
      6 //     * Redistributions of source code must retain the above copyright
      7 //       notice, this list of conditions and the following disclaimer.
      8 //     * Redistributions in binary form must reproduce the above
      9 //       copyright notice, this list of conditions and the following
     10 //       disclaimer in the documentation and/or other materials provided
     11 //       with the distribution.
     12 //     * Neither the name of Google Inc. nor the names of its
     13 //       contributors may be used to endorse or promote products derived
     14 //       from this software without specific prior written permission.
     15 //
     16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27 
     28 #ifndef V8_ISOLATE_INL_H_
     29 #define V8_ISOLATE_INL_H_
     30 
     31 #include "debug.h"
     32 #include "isolate.h"
     33 #include "utils/random-number-generator.h"
     34 
     35 namespace v8 {
     36 namespace internal {
     37 
     38 
     39 SaveContext::SaveContext(Isolate* isolate)
     40   : isolate_(isolate),
     41     prev_(isolate->save_context()) {
     42   if (isolate->context() != NULL) {
     43     context_ = Handle<Context>(isolate->context());
     44   }
     45   isolate->set_save_context(this);
     46 
     47   c_entry_fp_ = isolate->c_entry_fp(isolate->thread_local_top());
     48 }
     49 
     50 
     51 bool Isolate::IsCodePreAgingActive() {
     52   return FLAG_optimize_for_size && FLAG_age_code && !IsDebuggerActive();
     53 }
     54 
     55 
     56 bool Isolate::IsDebuggerActive() {
     57 #ifdef ENABLE_DEBUGGER_SUPPORT
     58   if (!NoBarrier_Load(&debugger_initialized_)) return false;
     59   return debugger()->IsDebuggerActive();
     60 #else
     61   return false;
     62 #endif
     63 }
     64 
     65 
     66 bool Isolate::DebuggerHasBreakPoints() {
     67 #ifdef ENABLE_DEBUGGER_SUPPORT
     68   return debug()->has_break_points();
     69 #else
     70   return false;
     71 #endif
     72 }
     73 
     74 
     75 RandomNumberGenerator* Isolate::random_number_generator() {
     76   if (random_number_generator_ == NULL) {
     77     random_number_generator_ = new RandomNumberGenerator;
     78   }
     79   return random_number_generator_;
     80 }
     81 
     82 } }  // namespace v8::internal
     83 
     84 #endif  // V8_ISOLATE_INL_H_
     85