116   if (pipe(caller_to_addr2line) == -1) {  in Connect()
119   if (pipe(addr2line_to_caller) == -1) {  in Connect()
157                   std::unique_ptr<Addr2linePipe>* pipe /* inout */,  in Drain()  argument
159   DCHECK(pipe != nullptr);  in Drain()
160   DCHECK(pipe->get() != nullptr);  in Drain()
161   int in = pipe->get()->in.Fd();  in Drain()
175       pipe->reset();  in Drain()
186       pipe->reset();  in Drain()
197       pipe->reset();  in Drain()
205         WritePrefix(os, prefix, (*pipe)->odd);  in Drain()
221         (*pipe)->odd = !(*pipe)->odd;  in Drain()
235                       std::unique_ptr<Addr2linePipe>* pipe /* inout */) {  in Addr2line()  argument
236   DCHECK(pipe != nullptr);  in Addr2line()
245   if (*pipe == nullptr || (*pipe)->file != map_src) {  in Addr2line()
246     if (*pipe != nullptr) {  in Addr2line()
247       Drain(0, prefix, pipe, os);  in Addr2line()
249     pipe->reset();  // Close early.  in Addr2line()
261     *pipe = Connect(map_src, args);  in Addr2line()
264   Addr2linePipe* pipe_ptr = pipe->get();  in Addr2line()
275     pipe->reset();  in Addr2line()
280   Drain(2U, prefix, pipe, os);  in Addr2line()