[sanitizer] Move FindThreadByOSIdLocked from lsan to sanitizer_common.

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@182728 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 11 insertions, 0 deletions

diff --git a/lib/sanitizer_common/sanitizer_thread_registry.cc b/lib/sanitizer_common/sanitizer_thread_registry.cc
index 22c7c5e19..466dc3b8a 100644
--- a/lib/sanitizer_common/sanitizer_thread_registry.cc
+++ b/lib/sanitizer_common/sanitizer_thread_registry.cc
@@ -180,6 +180,17 @@ ThreadRegistry::FindThreadContextLocked(FindThreadCallback cb, void *arg) {
   return 0;
 }
 
+static bool FindThreadContextByOsIdCallback(ThreadContextBase *tctx,
+                                            void *arg) {
+  return (tctx->os_id == (uptr)arg && tctx->status != ThreadStatusInvalid &&
+      tctx->status != ThreadStatusDead);
+}
+
+ThreadContextBase *ThreadRegistry::FindThreadContextByOsIDLocked(uptr os_id) {
+  return FindThreadContextLocked(FindThreadContextByOsIdCallback,
+                                 (void *)os_id);
+}
+
 void ThreadRegistry::SetThreadName(u32 tid, const char *name) {
   BlockingMutexLock l(&mtx_);
   CHECK_LT(tid, n_contexts_);