81   bool ReleaseThread(pid_t tid);
86   int CaptureThread(pid_t tid);
87   bool ReleaseThread(pid_t tid, unsigned int signal);
88   int PtraceAttach(pid_t tid);
89   void PtraceDetach(pid_t tid, unsigned int signal);
90   bool PtraceThreadInfo(pid_t tid, ThreadInfo& thread_info);
138         pid_t tid = atoi(dirent->d_name);  in ListThreads()  local
139         if (tid <= 0) {  in ListThreads()
142         tids.push_back(tid);  in ListThreads()
179 void ThreadCaptureImpl::PtraceDetach(pid_t tid, unsigned int signal) {  in PtraceDetach()  argument
181   if (ptrace(PTRACE_DETACH, tid, NULL, sig_ptr) < 0 && errno != ESRCH) {  in PtraceDetach()
182     MEM_ALOGE("failed to detach from thread %d of process %d: %s", tid, pid_, strerror(errno));  in PtraceDetach()
188 int ThreadCaptureImpl::PtraceAttach(pid_t tid) {  in PtraceAttach()  argument
189   int ret = ptrace(PTRACE_SEIZE, tid, NULL, NULL);  in PtraceAttach()
191     MEM_ALOGE("failed to attach to thread %d of process %d: %s", tid, pid_, strerror(errno));  in PtraceAttach()
196     inject_test_func_(tid);  in PtraceAttach()
199   if (ptrace(PTRACE_INTERRUPT, tid, 0, 0) < 0) {  in PtraceAttach()
203       MEM_ALOGE("failed to interrupt thread %d of process %d: %s", tid, pid_, strerror(errno));  in PtraceAttach()
204       PtraceDetach(tid, 0);  in PtraceAttach()
211 bool ThreadCaptureImpl::PtraceThreadInfo(pid_t tid, ThreadInfo& thread_info) {  in PtraceThreadInfo()  argument
212   thread_info.tid = tid;  in PtraceThreadInfo()
220   if (ptrace(PTRACE_GETREGSET, tid, reinterpret_cast<void*>(NT_PRSTATUS), &iovec)) {  in PtraceThreadInfo()
221 …  MEM_ALOGE("ptrace getregset for thread %d of process %d failed: %s", tid, pid_, strerror(errno));  in PtraceThreadInfo()
251 int ThreadCaptureImpl::CaptureThread(pid_t tid) {  in CaptureThread()  argument
252   int ret = PtraceAttach(tid);  in CaptureThread()
258   if (TEMP_FAILURE_RETRY(waitpid(tid, &status, __WALL)) < 0) {  in CaptureThread()
259 …  MEM_ALOGE("failed to wait for pause of thread %d of process %d: %s", tid, pid_, strerror(errno));  in CaptureThread()
260     PtraceDetach(tid, 0);  in CaptureThread()
265     MEM_ALOGE("thread %d of process %d was not paused after waitpid, killed?", tid, pid_);  in CaptureThread()
285                   tid, pid_);  in CaptureThread()
293   captured_threads_[tid] = resume_signal;  in CaptureThread()
297 bool ThreadCaptureImpl::ReleaseThread(pid_t tid) {  in ReleaseThread()  argument
298   auto it = captured_threads_.find(tid);  in ReleaseThread()
305 bool ThreadCaptureImpl::ReleaseThread(pid_t tid, unsigned int signal) {  in ReleaseThread()  argument
306   PtraceDetach(tid, signal);  in ReleaseThread()
355 bool ThreadCapture::ReleaseThread(pid_t tid) {  in ReleaseThread()  argument
356   return impl_->ReleaseThread(tid);  in ReleaseThread()