mirror of
https://code.blicky.net/yorhel/ncdu.git
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6fa56c1b38
Rather than storing a pointer to another memory allocation in the struct. This saves some memory and improves performance by significantly decreasing the number of calls to [c|m]alloc() and free().
91 lines
3 KiB
C
91 lines
3 KiB
C
/* ncdu - NCurses Disk Usage
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Copyright (c) 2007-2010 Yoran Heling
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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"Software"), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:
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The above copyright notice and this permission notice shall be included
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in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef _global_h
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#define _global_h
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#include "config.h"
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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/* File Flags (struct dir -> flags) */
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#define FF_DIR 0x01
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#define FF_FILE 0x02
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#define FF_ERR 0x04 /* error while reading this item */
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#define FF_OTHFS 0x08 /* excluded because it was an other filesystem */
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#define FF_EXL 0x10 /* excluded using exlude patterns */
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#define FF_SERR 0x20 /* error in subdirectory */
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#define FF_HLNKC 0x40 /* hard link candidate (file with st_nlink > 1) */
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#define FF_BSEL 0x80 /* selected */
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/* Program states */
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#define ST_CALC 0
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#define ST_BROWSE 1
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#define ST_DEL 2
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#define ST_HELP 3
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/* structure representing a file or directory
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* XXX: probably a good idea to get rid of the custom _t types and use
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* fixed-size integers instead, which are much more predictable */
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struct dir {
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struct dir *parent, *next, *prev, *sub, *hlnk;
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off_t size, asize;
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ino_t ino;
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unsigned long items;
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dev_t dev;
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unsigned char flags;
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char name[3]; /* must be large enough to hold ".." */
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};
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/* sizeof(total dir) = SDIRSIZE + strlen(name) = sizeof(struct dir) - 3 + strlen(name) + 1 */
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#define SDIRSIZE (sizeof(struct dir)-2)
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/* Ideally, the name array should be as large as the padding added to the end of
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* the struct, but I can't figure out a portable way to calculate this. We can
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* be sure that it's at least 3 bytes, though, as the struct is aligned to at
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* least 4 bytes and the flags field is a single byte. */
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/* program state */
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extern int pstate;
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/* minimum screen update interval when calculating, in ms */
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extern long update_delay;
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/* handle input from keyboard and update display */
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int input_handle(int);
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/* import all other global functions and variables */
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#include "exclude.h"
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#include "util.h"
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#include "calc.h"
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#include "delete.h"
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#include "browser.h"
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#include "help.h"
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#include "path.h"
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#include "dirlist.h"
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#endif
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