From 79ed8fd79bee03916a36b4c5f46c0965df082f83 Mon Sep 17 00:00:00 2001
From: Dmitry Neverov <dmitry.neverov@jetbrains.com>
Date: Mon, 28 Oct 2019 10:39:21 +0100
Subject: [PATCH] IDEA-CR-54283: Ability to gracefully terminate process by pid

GitOrigin-RevId: aefcfae5dec522b25efac2b171bd5c6b235fb9b0
---
 .../execution/process/OSProcessUtil.java      | 34 +++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/platform/platform-util-io/src/com/intellij/execution/process/OSProcessUtil.java b/platform/platform-util-io/src/com/intellij/execution/process/OSProcessUtil.java
index b3ab1787f42a..34a26c751ddc 100644
--- a/platform/platform-util-io/src/com/intellij/execution/process/OSProcessUtil.java
+++ b/platform/platform-util-io/src/com/intellij/execution/process/OSProcessUtil.java
@@ -10,6 +10,7 @@ import org.jetbrains.annotations.ApiStatus;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 import org.jvnet.winp.WinProcess;
+import org.jvnet.winp.WinpException;
 
 import java.util.ArrayList;
 import java.util.Collections;
@@ -83,6 +84,39 @@ public final class OSProcessUtil {
     }
   }
 
+  /**
+   * Terminates the process with the specified pid gracefully: on windows sends Ctrl-C,
+   * on unix sends the SIGINT signal.
+   *
+   * @throws UnsupportedOperationException if cannot interrupt the process
+   *
+   * @see KillableProcessHandler#destroyProcessGracefully()
+   */
+  public static void terminateProcessGracefully(int pid) throws RuntimeException {
+    if (SystemInfo.isWindows) {
+      if (Registry.is("disable.winp")) {
+        throw new UnsupportedOperationException("Cannot terminate process, disable.winp=true");
+      }
+      else {
+        try {
+          // there is no need to check return value: `sendCtrlC` either returns
+          // true or throws exception.
+          //noinspection ResultOfMethodCallIgnored
+          createWinProcess(pid).sendCtrlC();
+        }
+        catch (WinpException e) {
+          throw new UnsupportedOperationException("Failed to terminate process", e);
+        }
+      }
+    }
+    else if (SystemInfo.isUnix) {
+      UnixProcessManager.sendSignal(pid, UnixProcessManager.SIGINT);
+    }
+    else {
+      throw new UnsupportedOperationException("Graceful termination is not supported for " + SystemInfo.getOsNameAndVersion());
+    }
+  }
+
   static void logSkippedActionWithTerminatedProcess(@NotNull Process process, @NotNull String actionName, @Nullable String commandLine) {
     Integer pid = null;
     try {