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      1 /*
      2  * Copyright (C) 2010 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #include "config.h"
     32 
     33 #include "TestShell.h"
     34 #include "WebThemeEngineDRTMac.h"
     35 #include "webkit/support/webkit_support.h"
     36 #import <AppKit/AppKit.h>
     37 
     38 static WebThemeEngineDRTMac themeEngine;
     39 
     40 // A class to be the target/selector of the "watchdog" thread that ensures
     41 // pages timeout if they take too long and tells the test harness via stdout.
     42 @interface WatchDogTarget : NSObject {
     43 @private
     44     NSTimeInterval _timeout;
     45 }
     46 // |timeout| is in seconds
     47 - (id)initWithTimeout:(NSTimeInterval)timeout;
     48 // serves as the "run" method of a NSThread.
     49 - (void)run:(id)sender;
     50 @end
     51 
     52 @implementation WatchDogTarget
     53 
     54 - (id)initWithTimeout:(NSTimeInterval)timeout
     55 {
     56     if ((self = [super init]))
     57         _timeout = timeout;
     58     return self;
     59 }
     60 
     61 - (void)run:(id)ignore
     62 {
     63     NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
     64 
     65     // check for debugger, just bail if so. We don't want the timeouts hitting
     66     // when we're trying to track down an issue.
     67     if (webkit_support::BeingDebugged())
     68         return;
     69 
     70     NSThread* currentThread = [NSThread currentThread];
     71 
     72     // Wait to be cancelled. If we are that means the test finished. If it hasn't,
     73     // then we need to tell the layout script we timed out and start again.
     74     NSDate* limitDate = [NSDate dateWithTimeIntervalSinceNow:_timeout];
     75     while ([(NSDate*)[NSDate date] compare:limitDate] == NSOrderedAscending &&
     76            ![currentThread isCancelled]) {
     77         // sleep for a small increment then check again
     78         NSDate* incrementDate = [NSDate dateWithTimeIntervalSinceNow:1.0];
     79         [NSThread sleepUntilDate:incrementDate];
     80     }
     81     if (![currentThread isCancelled]) {
     82         // Print a warning to be caught by the layout-test script.
     83         // Note: the layout test driver may or may not recognize
     84         // this as a timeout.
     85         puts("#TEST_TIMED_OUT\n");
     86         puts("#EOF\n");
     87         fflush(stdout);
     88         exit(0);
     89     }
     90 
     91     [pool release];
     92 }
     93 
     94 @end
     95 
     96 void TestShell::waitTestFinished()
     97 {
     98     ASSERT(!m_testIsPending);
     99 
    100     m_testIsPending = true;
    101 
    102     // Create a watchdog thread which just sets a timer and
    103     // kills the process if it times out.  This catches really
    104     // bad hangs where the shell isn't coming back to the
    105     // message loop.  If the watchdog is what catches a
    106     // timeout, it can't do anything except terminate the test
    107     // shell, which is unfortunate.
    108     // Windows multiplies by 2.5, but that causes us to run for far, far too
    109     // long. We use the passed value and let the scripts flag override
    110     // the value as needed.
    111     NSTimeInterval timeoutSeconds = layoutTestTimeoutForWatchDog() / 1000;
    112     WatchDogTarget* watchdog = [[[WatchDogTarget alloc]
    113                                     initWithTimeout:timeoutSeconds] autorelease];
    114     NSThread* thread = [[NSThread alloc] initWithTarget:watchdog
    115                                          selector:@selector(run:)
    116                                          object:nil];
    117     [thread start];
    118 
    119     // TestFinished() will post a quit message to break this loop when the page
    120     // finishes loading.
    121     while (m_testIsPending)
    122         webkit_support::RunMessageLoop();
    123 
    124     // Tell the watchdog that we're finished. No point waiting to re-join, it'll
    125     // die on its own.
    126     [thread cancel];
    127     [thread release];
    128 }
    129 
    130 void platformInit(int*, char***)
    131 {
    132     webkit_support::SetThemeEngine(&themeEngine);
    133 }
    134 
    135 void openStartupDialog()
    136 {
    137     // FIXME: This code doesn't work. Need NSApplication event loop?
    138     NSAlert* alert = [[[NSAlert alloc] init] autorelease];
    139     alert.messageText = @"Attach to me?";
    140     alert.informativeText = @"This would probably be a good time to attach your debugger.";
    141     [alert addButtonWithTitle:@"OK"];
    142     [alert runModal];
    143 }
    144 
    145 bool checkLayoutTestSystemDependencies()
    146 {
    147     return true;
    148 }
    149 
    150