bool Debugger::switchSandboxImpl(DebuggerProxyPtr proxy,
const StringData* newSid,
bool force) {
TRACE(2, "Debugger::switchSandboxImpl\n");
// When attaching to the sandbox, ensure that hphpd is the active debugger.
// If this fails, we'll end up returning failure to the CmdMachine on the
// hphpd client that attempted the attach, and it will inform the user.
auto instance = HphpdHook::GetInstance();
if (!DebuggerHook::setActiveDebuggerInstance(instance, true)) {
return false;
}
// Take the new sandbox
DebuggerProxyPtr otherProxy;
{
ProxyMap::accessor acc;
if (m_proxyMap.insert(acc, newSid)) {
acc->second = proxy;
} else {
// the sandbox indicated by newId is already attached by another proxy
if (!force) {
return false;
}
// Delay the destruction of the proxy originally attached to the sandbox
// to avoid calling a DebuggerProxy destructor (which can sleep) while
// holding m_mutex.
otherProxy = acc->second;
acc->second = proxy;
}
}
if (proxy->getSandbox().valid()) {
// Detach from the old sandbox
const StringData* oldSid =
makeStaticString(proxy->getSandboxId());
setDebuggerFlag(oldSid, false);
m_proxyMap.erase(oldSid);
}
setDebuggerFlag(newSid, true);
if (otherProxy) {
otherProxy->stop();
}
return true;
}
bool Debugger::switchSandboxImpl(DebuggerProxyPtr proxy,
const StringData* newSid,
bool force) {
TRACE(2, "Debugger::switchSandboxImpln");
// Take the new sandbox
DebuggerProxyPtr otherProxy;
{
ProxyMap::accessor acc;
if (m_proxyMap.insert(acc, newSid)) {
acc->second = proxy;
} else {
// the sandbox indicated by newId is already attached by another proxy
if (!force) {
return false;
}
// Delay the destruction of the proxy originally attached to the sandbox
// to avoid calling a DebuggerProxy destructor (which can sleep) while
// holding m_mutex.
otherProxy = acc->second;
acc->second = proxy;
}
}
if (proxy->getSandbox().valid()) {
// Detach from the old sandbox
const StringData* oldSid =
StringData::GetStaticString(proxy->getSandboxId());
setDebuggerFlag(oldSid, false);
m_proxyMap.erase(oldSid);
}
setDebuggerFlag(newSid, true);
if (otherProxy) {
otherProxy->forceQuit();
}
return true;
}
void Debugger::removeProxy(DebuggerProxyPtr proxy) {
if (proxy->getSandbox().valid()) {
const StringData* sid = StringData::GetStaticString(proxy->getSandboxId());
setDebuggerFlag(sid, false);
m_proxyMap.erase(sid);
}
const StringData* dummySid =
StringData::GetStaticString(proxy->getDummyInfo().id());
m_proxyMap.erase(dummySid);
// Clear the debugger blacklist PC upon last detach if JIT is used
if (RuntimeOption::EvalJit && countConnectedProxy() == 0) {
VM::Transl::Translator::Get()->clearDbgBL();
}
}
// NB: when this returns, the Debugger class no longer has any references to the
// given proxy. It will likely be destroyed when the caller's reference goes out
// of scope.
void Debugger::removeProxy(DebuggerProxyPtr proxy) {
TRACE(2, "Debugger::removeProxy\n");
if (proxy->getSandbox().valid()) {
const StringData* sid = makeStaticString(proxy->getSandboxId());
setDebuggerFlag(sid, false);
m_proxyMap.erase(sid);
}
const StringData* dummySid =
makeStaticString(proxy->getDummyInfo().id());
m_proxyMap.erase(dummySid);
// Clear the debugger blacklist PC upon last detach if JIT is used
if (RuntimeOption::EvalJit && countConnectedProxy() == 0) {
jit::mcg->tx().clearDbgBL();
}
}