From 5a602c6007df9e46fefc1386fb88dd13f5c56ac3 Mon Sep 17 00:00:00 2001
From: wisberg <wisberg>
Date: Sat, 31 May 2003 07:22:44 +0000
Subject: delay until after final last-modified-time stamp on newly-staged 
 files since last-modified-time stamp can be delayed by filesystem buffering.

---
 util/src/org/aspectj/util/FileUtil.java | 26 +++++++++++++++++++++
 util/src/org/aspectj/util/LangUtil.java | 41 ++++++++++++++++++++++++++++++++-
 2 files changed, 66 insertions(+), 1 deletion(-)

(limited to 'util')

diff --git a/util/src/org/aspectj/util/FileUtil.java b/util/src/org/aspectj/util/FileUtil.java
index 89ed1fe4a..c9d5fe324 100644
--- a/util/src/org/aspectj/util/FileUtil.java
+++ b/util/src/org/aspectj/util/FileUtil.java
@@ -1169,6 +1169,31 @@ public class FileUtil {
 		return new BufferedOutputStream(new FileOutputStream(file));
 	}
 
+    /**
+     * Sleep until after the last last-modified stamp from the files.
+     * @param files the File[] of files to inspect for last modified times
+     *        (this ignores null or empty files array
+     *         and null or non-existing components of files array)
+     * @return true if succeeded without 100 interrupts
+     */
+    public static boolean sleepPastFinalModifiedTime(File[] files) {
+        if ((null == files) || (0 == files.length)) {
+            return true;
+        }
+        long delayUntil = System.currentTimeMillis();
+        for (int i = 0; i < files.length; i++) {
+            File file = files[i];
+            if ((null == file) || !file.exists()) {
+                continue;
+            }
+            long nextModTime = file.lastModified();
+            if (nextModTime > delayUntil) {
+                delayUntil = nextModTime;
+            }
+        }
+        return LangUtil.sleepUntil(++delayUntil);
+    }
+
     /** map name to result, removing any fromSuffix and adding any toSuffix */
     private static String map(String name, String fromSuffix, String toSuffix) {
         if (null != name) {
@@ -1386,4 +1411,5 @@ public class FileUtil {
         protected void completing(long totalWritten, Throwable thrown) {
         }
     }
+
 }
diff --git a/util/src/org/aspectj/util/LangUtil.java b/util/src/org/aspectj/util/LangUtil.java
index 5d8de7f7b..4887fda4e 100644
--- a/util/src/org/aspectj/util/LangUtil.java
+++ b/util/src/org/aspectj/util/LangUtil.java
@@ -980,6 +980,44 @@ public class LangUtil {
             }
         }
         return result;
+    } 
+    
+    /**
+     * Sleep for a particular period (in milliseconds).
+     * @param time the long time in milliseconds to sleep
+     * @return true if delay succeeded, false if interrupted 100 times
+     */
+    public static boolean sleep(long milliseconds) {
+        if (milliseconds == 0) {
+            return true;
+        } else if (milliseconds < 0) {
+            throw new IllegalArgumentException("negative: " + milliseconds);
+        }
+        return sleepUntil(milliseconds + System.currentTimeMillis());
+    }
+    
+    /**
+     * Sleep until a particular time.
+     * @param time the long time in milliseconds to sleep until
+     * @return true if delay succeeded, false if interrupted 100 times
+     */
+    public static boolean sleepUntil(long time) {
+        if (time == 0) {
+            return true;
+        } else if (time < 0) {
+            throw new IllegalArgumentException("negative: " + time);
+        }
+        final Thread thread = Thread.currentThread();
+        long curTime = System.currentTimeMillis();
+        for (int i = 0; (i < 100) && (curTime < time); i++) {
+            try {
+                thread.sleep(time-curTime);            
+            } catch (InterruptedException e) {
+                // ignore
+            }
+            curTime = System.currentTimeMillis();
+        }
+        return (curTime >= time);
     }  
       
     /**
@@ -1336,7 +1374,8 @@ public class LangUtil {
                 }
             }
         } // class Thrown
-    }  // class ProcessController
+    }
+
 }
 
 
-- 
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