michael@0: /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
michael@0:  * vim: set ts=8 sts=4 et sw=4 tw=99:
michael@0:  * This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef jit_CompileWrappers_h
michael@0: #define jit_CompileWrappers_h
michael@0: 
michael@0: #ifdef JS_ION
michael@0: 
michael@0: #include "jscntxt.h"
michael@0: 
michael@0: namespace js {
michael@0: namespace jit {
michael@0: 
michael@0: class JitRuntime;
michael@0: 
michael@0: // During Ion compilation we need access to various bits of the current
michael@0: // compartment, runtime and so forth. However, since compilation can run off
michael@0: // thread while the main thread is actively mutating the VM, this access needs
michael@0: // to be restricted. The classes below give the compiler an interface to access
michael@0: // all necessary information in a threadsafe fashion.
michael@0: 
michael@0: class CompileRuntime
michael@0: {
michael@0:     JSRuntime *runtime();
michael@0: 
michael@0:   public:
michael@0:     static CompileRuntime *get(JSRuntime *rt);
michael@0: 
michael@0:     bool onMainThread();
michael@0: 
michael@0:     js::PerThreadData *mainThread();
michael@0: 
michael@0:     // &mainThread.ionTop
michael@0:     const void *addressOfIonTop();
michael@0: 
michael@0:     // rt->mainThread.jitStackLimit;
michael@0:     const void *addressOfJitStackLimit();
michael@0: 
michael@0:     // &mainThread.ionJSContext
michael@0:     const void *addressOfJSContext();
michael@0: 
michael@0:     // &mainThread.activation_
michael@0:     const void *addressOfActivation();
michael@0: 
michael@0:     // &GetIonContext()->runtime->nativeIterCache.last
michael@0:     const void *addressOfLastCachedNativeIterator();
michael@0: 
michael@0: #ifdef JS_GC_ZEAL
michael@0:     const void *addressOfGCZeal();
michael@0: #endif
michael@0: 
michael@0:     const void *addressOfInterrupt();
michael@0: 
michael@0: #ifdef JS_THREADSAFE
michael@0:     const void *addressOfInterruptPar();
michael@0: #endif
michael@0: 
michael@0:     const void *addressOfThreadPool();
michael@0: 
michael@0:     const JitRuntime *jitRuntime();
michael@0: 
michael@0:     // Compilation does not occur off thread when the SPS profiler is enabled.
michael@0:     SPSProfiler &spsProfiler();
michael@0: 
michael@0:     bool signalHandlersInstalled();
michael@0:     bool jitSupportsFloatingPoint();
michael@0:     bool hadOutOfMemory();
michael@0: 
michael@0:     const JSAtomState &names();
michael@0:     const StaticStrings &staticStrings();
michael@0:     const Value &NaNValue();
michael@0:     const Value &positiveInfinityValue();
michael@0: 
michael@0: #ifdef DEBUG
michael@0:     bool isInsideNursery(gc::Cell *cell);
michael@0: #endif
michael@0: 
michael@0:     // DOM callbacks must be threadsafe (and will hopefully be removed soon).
michael@0:     const DOMCallbacks *DOMcallbacks();
michael@0: 
michael@0:     const MathCache *maybeGetMathCache();
michael@0: 
michael@0: #ifdef JSGC_GENERATIONAL
michael@0:     const Nursery &gcNursery();
michael@0: #endif
michael@0: };
michael@0: 
michael@0: class CompileZone
michael@0: {
michael@0:     Zone *zone();
michael@0: 
michael@0:   public:
michael@0:     static CompileZone *get(Zone *zone);
michael@0: 
michael@0:     const void *addressOfNeedsBarrier();
michael@0: 
michael@0:     // allocator.arenas.getFreeList(allocKind)
michael@0:     const void *addressOfFreeListFirst(gc::AllocKind allocKind);
michael@0:     const void *addressOfFreeListLast(gc::AllocKind allocKind);
michael@0: };
michael@0: 
michael@0: class CompileCompartment
michael@0: {
michael@0:     JSCompartment *compartment();
michael@0: 
michael@0:   public:
michael@0:     static CompileCompartment *get(JSCompartment *comp);
michael@0: 
michael@0:     CompileZone *zone();
michael@0:     CompileRuntime *runtime();
michael@0: 
michael@0:     const void *addressOfEnumerators();
michael@0: 
michael@0:     const CallsiteCloneTable &callsiteClones();
michael@0: 
michael@0:     const JitCompartment *jitCompartment();
michael@0: 
michael@0:     bool hasObjectMetadataCallback();
michael@0: 
michael@0:     // Mirror CompartmentOptions.
michael@0:     void setSingletonsAsValues();
michael@0: };
michael@0: 
michael@0: class JitCompileOptions
michael@0: {
michael@0:   public:
michael@0:     JitCompileOptions();
michael@0:     JitCompileOptions(JSContext *cx);
michael@0: 
michael@0:     bool cloneSingletons() const {
michael@0:         return cloneSingletons_;
michael@0:     }
michael@0: 
michael@0:     bool spsSlowAssertionsEnabled() const {
michael@0:         return spsSlowAssertionsEnabled_;
michael@0:     }
michael@0: 
michael@0:   private:
michael@0:     bool cloneSingletons_;
michael@0:     bool spsSlowAssertionsEnabled_;
michael@0: };
michael@0: 
michael@0: 
michael@0: } // namespace jit
michael@0: } // namespace js
michael@0: 
michael@0: #endif // JS_ION
michael@0: 
michael@0: #endif // jit_CompileWrappers_h