647     pids_ = pids;  in SetPid()
859         pids_.clear();  in PrepareFdEvents()
860         pids_.push_back(-1);  in PrepareFdEvents()
863             pids_.push_back(trackedCommand_->GetChildPid());  in PrepareFdEvents()
865         if (pids_.empty()) {  in PrepareFdEvents()
866             pids_.push_back(0); // no pid means use 0 as self pid  in PrepareFdEvents()
878     if (pids_.size() == 1 && pids_[0] == -1) {  in PrepareFdEvents()
881         HLOGI("target process: %zu (%s)\n", pids_.size(),  in PrepareFdEvents()
882               (pids_[0] == 0) ? std::to_string(gettid()).c_str() : VectorToString(pids_).c_str());  in PrepareFdEvents()
942         int groupFdCache[cpus_.size()][pids_.size()];  in CreateFdEvents()
944             for (size_t j = 0; j < pids_.size(); j++) { // each pid  in CreateFdEvents()
956                 for (size_t ipid = 0; ipid < pids_.size(); ipid++) { // each pid  in CreateFdEvents()
960                     UniqueFd fd = Open(eventItem.attr, pids_[ipid], cpus_[icpu],  in CreateFdEvents()
966                                 printf("pid %d does not exist.\n", pids_[ipid]);  in CreateFdEvents()
968                             HLOGE("pid %d does not exist.\n", pids_[ipid]);  in CreateFdEvents()
991                     fdItem.pid = pids_[ipid];  in CreateFdEvents()
1478     for (auto it = pids_.begin(); it != pids_.end();) {  in HaveTargetsExit()
1482             it = pids_.erase(it);  in HaveTargetsExit()
1485     if (pids_.empty()) {  in HaveTargetsExit()