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Diffstat (limited to 'js/src/vm/Probes-inl.h')
-rw-r--r-- | js/src/vm/Probes-inl.h | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/js/src/vm/Probes-inl.h b/js/src/vm/Probes-inl.h new file mode 100644 index 000000000..347f842b8 --- /dev/null +++ b/js/src/vm/Probes-inl.h @@ -0,0 +1,93 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- + * vim: set ts=8 sts=4 et sw=4 tw=99: + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef vm_Probes_inl_h +#define vm_Probes_inl_h + +#include "vm/Probes.h" + +#include "jscntxt.h" + +namespace js { + +/* + * Many probe handlers are implemented inline for minimal performance impact, + * especially important when no backends are enabled. + */ + +inline bool +probes::CallTrackingActive(JSContext* cx) +{ +#ifdef INCLUDE_MOZILLA_DTRACE + if (JAVASCRIPT_FUNCTION_ENTRY_ENABLED() || JAVASCRIPT_FUNCTION_RETURN_ENABLED()) + return true; +#endif + return false; +} + +inline bool +probes::EnterScript(JSContext* cx, JSScript* script, JSFunction* maybeFun, + InterpreterFrame* fp) +{ +#ifdef INCLUDE_MOZILLA_DTRACE + if (JAVASCRIPT_FUNCTION_ENTRY_ENABLED()) + DTraceEnterJSFun(cx, maybeFun, script); +#endif + + JSRuntime* rt = cx->runtime(); + if (rt->spsProfiler.enabled()) { + if (!rt->spsProfiler.enter(cx, script, maybeFun)) + return false; + MOZ_ASSERT_IF(!fp->script()->isGenerator(), !fp->hasPushedSPSFrame()); + fp->setPushedSPSFrame(); + } + + return true; +} + +inline void +probes::ExitScript(JSContext* cx, JSScript* script, JSFunction* maybeFun, bool popSPSFrame) +{ +#ifdef INCLUDE_MOZILLA_DTRACE + if (JAVASCRIPT_FUNCTION_RETURN_ENABLED()) + DTraceExitJSFun(cx, maybeFun, script); +#endif + + if (popSPSFrame) + cx->runtime()->spsProfiler.exit(script, maybeFun); +} + +inline bool +probes::StartExecution(JSScript* script) +{ + bool ok = true; + +#ifdef INCLUDE_MOZILLA_DTRACE + if (JAVASCRIPT_EXECUTE_START_ENABLED()) + JAVASCRIPT_EXECUTE_START((script->filename() ? (char*)script->filename() : nullName), + script->lineno()); +#endif + + return ok; +} + +inline bool +probes::StopExecution(JSScript* script) +{ + bool ok = true; + +#ifdef INCLUDE_MOZILLA_DTRACE + if (JAVASCRIPT_EXECUTE_DONE_ENABLED()) + JAVASCRIPT_EXECUTE_DONE((script->filename() ? (char*)script->filename() : nullName), + script->lineno()); +#endif + + return ok; +} + +} /* namespace js */ + +#endif /* vm_Probes_inl_h */ |