Snap for 11498354 from 21da3a4 to 24Q3-release

Change-Id: I575b858179e9edc217fae5b96e6a5edda02b6fda

Author: Android Build Coastguard Worker

base/cvd/cuttlefish/host/commands/logcat_receiver/main.cpp

@@ -64,6 +64,7 @@ int main(int argc, char** argv) {
   auto logcat_file =
       cuttlefish::SharedFD::Open(path.c_str(), O_CREAT | O_APPEND | O_WRONLY, 0666);
 
+  bool first_iter = true;
   // Server loop
   while (true) {
     char buff[1024];
@@ -73,9 +74,35 @@ int main(int argc, char** argv) {
       break;
     }
     auto written = cuttlefish::WriteAll(logcat_file, buff, read);
-    CHECK(written == read) << "Error writing to log file: "
-                           << logcat_file->StrError()
-                           << ". This is unrecoverable.";
+    CHECK(written == read)
+        << "Error writing to log file: " << logcat_file->StrError()
+        << ". This is unrecoverable.";
+    if (first_iter) {
+      first_iter = false;
+      if ((!config->snapshot_path().empty())) {
+        cuttlefish::SharedFD restore_pipe = cuttlefish::SharedFD::Open(
+            instance.restore_pipe_name().c_str(), O_WRONLY);
+        if (!restore_pipe->IsOpen()) {
+          LOG(ERROR) << "Error opening restore pipe: "
+                     << restore_pipe->StrError();
+          return 2;
+        }
+        cuttlefish::SharedFD restore_adbd_pipe = cuttlefish::SharedFD::Open(
+            instance.restore_adbd_pipe_name().c_str(), O_WRONLY);
+        if (!restore_adbd_pipe->IsOpen()) {
+          LOG(ERROR) << "Error opening restore pipe: "
+                     << restore_adbd_pipe->StrError();
+          return 2;
+        }
+
+        CHECK(cuttlefish::WriteAll(restore_pipe, "1") == 1)
+            << "Error writing to restore pipe: " << restore_pipe->StrError()
+            << ". This is unrecoverable.";
+        CHECK(cuttlefish::WriteAll(restore_adbd_pipe, "2") == 1)
+            << "Error writing to adbd restore pipe: "
+            << restore_adbd_pipe->StrError() << ". This is unrecoverable.";
+      }
+    }
   }
 
   logcat_file->Close();