Process::cb_ret_t Backend::handleTimeEvent() {
// Get all subscribed events
set<Event*>& events = Time::getTimeSubscribers();
set<Event*>::iterator eventIter = events.begin();
for(;eventIter != events.end(); eventIter++) {
Event* event = *eventIter;
ProcessSet::ptr procset = ((Time *)event)->getProcset();
ProcessSet::iterator procIter = procset->begin();
if(procset->size() == 0)
continue;
if(!event || !event->isEnabled(*procIter))
continue; // this is to avoid a race condition where a time event occurs in the middle of iterating through the processes
DYSECTVERBOSE(true, "Time event with timeout %d detected on %d processes", ((Time *)event)->getTimeout(), procset->size());
for(;procIter != procset->end(); procIter++) {
Process::ptr procPtr = *procIter;
if(event && event->isEnabled(procPtr)) {
Thread::ptr threadPtr = procPtr->threads().getInitialThread();
Walker *proc = (Walker *)procPtr->getData();
handleEvent(procPtr, threadPtr, event);
}
}
if(event->getOwner()->getLifeSpan() == fireOnce)
event->disable();
}
return Process::cbDefault;
}
bool Location::disable(ProcessSet::ptr lprocset) {
assert(owner != 0);
if(codeLocations.empty()) {
return Err::verbose(true, "No code locations");
}
if(!lprocset) {
return Err::warn(false, "Process set not present");
}
ProcessSet::iterator procIter = lprocset->begin();
for(;procIter != lprocset->end(); procIter++) {
Process::ptr procPtr = *procIter;
Walker* proc = (Walker*)procPtr->getData();
vector<DysectAPI::CodeLocation*>::iterator locationIter = codeLocations.begin();
for(;locationIter != codeLocations.end(); locationIter++) {
DysectAPI::CodeLocation* location = *locationIter;
if(!location->addProcLib(proc)) {
return Err::warn(false, "Symbol not found in process");
}
vector<Dyninst::Address> addrs;
if(!location->getAddrs(proc, addrs) || addrs.empty()) {
return Err::warn(false, "Addresses for symbol could not be determined");
}
// Breakpoint locations at hand
for(int i = 0; i < addrs.size() ; i++) {
Dyninst::Address addr = addrs[i];
if(!procPtr->rmBreakpoint(addr, bp)) {
Err::verbose(false, "Breakpoint not removed! %s", ProcControlAPI::getLastErrorMsg());
}
}
}
}
return true;
}
bool Location::enable(ProcessSet::ptr lprocset) {
assert(owner != 0);
if(codeLocations.empty()) {
return Err::verbose(true, "No code locations");
}
if(!lprocset) {
return Err::warn(false, "Process set not present");
}
ProcessSet::iterator procIter = lprocset->begin();
AddressSet::ptr addrset = AddressSet::newAddressSet();
if(lprocset->size() <= 0) {
return Err::info(true, "Process set empty!");
}
// Find library location for target processes
for(;procIter != lprocset->end(); procIter++) {
Process::ptr procPtr = *procIter;
Walker* proc = (Walker*)procPtr->getData();
vector<DysectAPI::CodeLocation*>::iterator locationIter = codeLocations.begin();
for(;locationIter != codeLocations.end(); locationIter++) {
DysectAPI::CodeLocation* location = *locationIter;
if(!location->addProcLib(proc)) {
return Err::warn(false, "Symbol not found in process");
}
vector<Dyninst::Address> addrs;
if(!location->getAddrs(proc, addrs) || addrs.empty()) {
return Err::warn(false, "Addresses for symbol could not be determined");
}
// Breakpoint locations at hand
for(int i = 0; i < addrs.size() ; i++) {
Dyninst::Address addr = addrs[i];
if(!procPtr->addBreakpoint(addr, bp)) {
return Err::verbose(false, "Breakpoint not installed: %s", ProcControlAPI::getLastErrorMsg());
} else {
Err::verbose(true, "Breakpoint installed at %lx", addr);
}
//addrset->insert(addr, procPtr);
}
//if(addrs.empty()) {
// Err::verbose(true, "No addresses");
//}
}
}
//if(addrset->size() <= 0) {
// return Err::verbose(true, "Empty address set");
//}
//if(!lprocset->addBreakpoint(addrset, nbp)) {
// return Err::warn(false, "Could not insert breakpoints!");
//} else {
// Err::info(true, "%d breakpoints inserted in %d processes", addrset->size(), lprocset->size());
//}
return true;
}