Mercurial > cpython-lru_cache-weakref

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Add use_weakref option to functools.lru_cache The use_weakref option makes lru_cache create weak references to the function arguments when creating the cache key, which prevents them from staying in the memory forever even after all other references to them are gone. This is a proof of concept for http://bugs.python.org/issue19859
author Radomir Dopieralski <devel@sheep.art.pl>
date Tue, 03 Dec 2013 16:02:48 +0100
parents 738cba2bf849
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 /*
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2 * doscript.c
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3 * PythonLauncher
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4 *
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5 * Created by Jack Jansen on Wed Jul 31 2002.
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6 * Copyright (c) 2002 __MyCompanyName__. All rights reserved.
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7 *
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8 */
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9
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10 #import <Cocoa/Cocoa.h>
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11 #import <ApplicationServices/ApplicationServices.h>
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12 #import "doscript.h"
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13
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14 extern int
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15 doscript(const char *command)
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16 {
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17 char *bundleID = "com.apple.Terminal";
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18 AppleEvent evt, res;
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19 AEDesc desc;
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20 OSStatus err;
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21
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22 [[NSWorkspace sharedWorkspace] launchApplication:@"/Applications/Utilities/Terminal.app/"];
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23
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24 // Build event
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25 err = AEBuildAppleEvent(kAECoreSuite, kAEDoScript,
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26 typeApplicationBundleID,
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27 bundleID, strlen(bundleID),
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28 kAutoGenerateReturnID,
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29 kAnyTransactionID,
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30 &evt, NULL,
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31 "'----':utf8(@)", strlen(command),
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32 command);
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33 if (err) {
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34 NSLog(@"AEBuildAppleEvent failed: %ld\n", (long)err);
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35 return err;
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36 }
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37
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38 // Send event and check for any Apple Event Manager errors
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39 err = AESendMessage(&evt, &res, kAEWaitReply, kAEDefaultTimeout);
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40 AEDisposeDesc(&evt);
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41 if (err) {
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42 NSLog(@"AESendMessage failed: %ld\n", (long)err);
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43 return err;
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44 }
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45 // Check for any application errors
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46 err = AEGetParamDesc(&res, keyErrorNumber, typeSInt32, &desc);
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47 AEDisposeDesc(&res);
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48 if (!err) {
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49 AEGetDescData(&desc, &err, sizeof(err));
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50 NSLog(@"Terminal returned an error: %ld", (long)err);
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51 AEDisposeDesc(&desc);
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52 } else if (err == errAEDescNotFound) {
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53 err = noErr;
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54 } else {
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55 NSLog(@"AEGetPArmDesc returned an error: %ld", (long)err);
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56 }
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57
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58 return err;
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59 }