本文整理汇总了C++中AsmJSActivation::setInterrupted方法的典型用法代码示例。如果您正苦于以下问题：C++ AsmJSActivation::setInterrupted方法的具体用法？C++ AsmJSActivation::setInterrupted怎么用？C++ AsmJSActivation::setInterrupted使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类AsmJSActivation的用法示例。
在下文中一共展示了AsmJSActivation::setInterrupted方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: handling
// Be very cautious and default to not handling; we don't want to accidentally
// silence real crashes from real bugs.
static bool
HandleSignal(int signum, siginfo_t *info, void *ctx)
{
CONTEXT *context = (CONTEXT *)ctx;
uint8_t **ppc = ContextToPC(context);
uint8_t *pc = *ppc;
void *faultingAddress = info->si_addr;
JSRuntime *rt = RuntimeForCurrentThread();
// Don't allow recursive handling of signals, see AutoSetHandlingSignal.
if (!rt || rt->handlingSignal)
return false;
AutoSetHandlingSignal handling(rt);
if (rt->jitRuntime() && rt->jitRuntime()->handleAccessViolation(rt, faultingAddress))
return true;
AsmJSActivation *activation = InnermostAsmJSActivation();
if (!activation)
return false;
const AsmJSModule &module = activation->module();
if (HandleSimulatorInterrupt(rt, activation, faultingAddress)) {
JSRuntime::AutoLockForInterrupt lock(rt);
module.unprotectCode(rt);
return true;
}
if (!module.containsPC(pc))
return false;
// If we faulted trying to execute code in 'module', this must be an
// interrupt callback (see RequestInterruptForAsmJSCode). Redirect
// execution to a trampoline which will call js::HandleExecutionInterrupt.
// The trampoline will jump to activation->resumePC if execution isn't
// interrupted.
if (module.containsPC(faultingAddress)) {
activation->setInterrupted(pc);
*ppc = module.interruptExit();
JSRuntime::AutoLockForInterrupt lock(rt);
module.unprotectCode(rt);
return true;
}
# if defined(JS_CODEGEN_X64)
// These checks aren't necessary, but, since we can, check anyway to make
// sure we aren't covering up a real bug.
if (!module.maybeHeap() ||
faultingAddress < module.maybeHeap() ||
faultingAddress >= module.maybeHeap() + AsmJSBufferProtectedSize)
{
return false;
}
const AsmJSHeapAccess *heapAccess = module.lookupHeapAccess(pc);
if (!heapAccess)
return false;
// We now know that this is an out-of-bounds access made by an asm.js
// load/store that we should handle. If this is a load, assign the
// JS-defined result value to the destination register (ToInt32(undefined)
// or ToNumber(undefined), determined by the type of the destination
// register) and set the PC to the next op. Upon return from the handler,
// execution will resume at this next PC.
if (heapAccess->isLoad())
SetRegisterToCoercedUndefined(context, heapAccess->isFloat32Load(), heapAccess->loadedReg());
*ppc += heapAccess->opLength();
return true;
# else
return false;
# endif
}