annotate netinstall/diskfull.cc @ 5158:9e0b43d3095c

more cleanups to object-memory-usage stuff -------------------- ChangeLog entries follow: -------------------- lisp/ChangeLog addition: 2010-03-19 Ben Wing <ben@xemacs.org> * diagnose.el (show-object-memory-usage-stats): Rewrite to take into account non-lisp-storage statistics returned by garbage-collect-1 and friends. src/ChangeLog addition: 2010-03-19 Ben Wing <ben@xemacs.org> * alloc.c: * alloc.c (struct): * alloc.c (tick_lrecord_stats): * alloc.c (gc_sweep_1): * alloc.c (finish_object_memory_usage_stats): * alloc.c (object_memory_usage_stats): * alloc.c (compute_memusage_stats_length): Call new memory-usage mechanism at sweep time to compute extra memory utilization for all objects. Add up the values element-by- element to get an aggregrate set of statistics, where each is the sum of the values of a single statistic across different objects of the same type. At end of sweep time, call finish_object_memory_usage_stats() to add up all the aggreggrate stats that are related to non-Lisp memory storage to compute a single value, and add it to the list of values returned by `garbage-collect' and `object-memory-usage-stats'. * buffer.c (compute_buffer_text_usage): Don't crash on buffers without text (killed buffers?) and don't double-count indirect buffers. * elhash.c: * elhash.c (hash_table_objects_create): * elhash.c (vars_of_elhash): * symsinit.h: Add memory-usage method to count the size of `hentries'. * emacs.c (main_1): Call new functions in elhash.c, frame.c at init. * frame.c: * frame.c (compute_frame_usage): * frame.c (frame_memory_usage): * frame.c (frame_objects_create): * symsinit.h: Add memory-usage method to count gutter display structures, subwindow exposures. * gc.c (gc_finish): * lisp.h: Declare finish_object_memory_usage_stats(), call it in gc_finish(). * lrecord.h (struct lrecord_implementation): * lrecord.h (INIT_MEMORY_USAGE_STATS): New value in implementation struct to track number of non-Lisp-memory statistics. Computed in alloc.c.
author Ben Wing <ben@xemacs.org>
date Fri, 19 Mar 2010 14:47:44 -0500
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children
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1 /*
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2 * Copyright (c) 2000, Red Hat, Inc.
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3 *
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4 * This program is free software; you can redistribute it and/or modify
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5 * it under the terms of the GNU General Public License as published by
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6 * the Free Software Foundation; either version 2 of the License, or
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7 * (at your option) any later version.
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8 *
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9 * A copy of the GNU General Public License can be found at
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10 * http://www.gnu.org/
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11 *
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12 * Written by DJ Delorie <dj@cygnus.com>
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13 *
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14 */
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15
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16 /* The purpose of this file is to hide the mess needed just to figure
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17 out how full a given disk is. There is an old API that can't
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18 handle disks bigger than 2G, and a new API that isn't always
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19 available. */
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20
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21 #include "win32.h"
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22 #include "diskfull.h"
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23
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24 typedef BOOL (WINAPI * GDFS)(LPCTSTR, PULARGE_INTEGER, PULARGE_INTEGER,
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25 PULARGE_INTEGER);
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26
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27 int
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28 diskfull (char *path)
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29 {
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30 GDFS gdfs = 0;
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31
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32 HINSTANCE k = LoadLibrary ("KERNEL32.DLL");
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33 if (k)
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34 {
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35 gdfs = (GDFS) GetProcAddress (k, "GetDiskFreeSpaceExA");
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36
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37 if (gdfs)
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38 {
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39 ULARGE_INTEGER avail, total, free;
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40 if (gdfs (path, &avail, &total, &free))
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41 {
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42 int perc = avail.QuadPart * 100 / total.QuadPart;
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43 return 100-perc;
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44 }
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45 }
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46 }
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47
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48 char root[4];
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49 if (path[1] != ':')
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50 return 0;
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51
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52 root[0] = path[0];
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53 root[1] = ':';
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54 root[2] = '\\';
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55 root[3] = 0;
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56
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57 DWORD junk, free_clusters, total_clusters;
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58
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59 if (GetDiskFreeSpace (root, &junk, &junk, &free_clusters, &total_clusters))
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60 {
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61 int perc = free_clusters * 100 / total_clusters;
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62 return 100-perc;
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63 }
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64
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65 return 0;
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66 }