2 * Top - a top users display for Berkeley Unix
10 /* Number of lines of header information on the standard screen */
11 extern int Header_lines;
13 /* Special atoi routine returns either a non-negative number or one of: */
17 /* maximum number we can have */
18 #define Largest 0x7fffffff
20 /* Exit code for system errors */
21 #define TOP_EX_SYS_ERROR 23
23 enum displaymodes { DISP_CPU = 0, DISP_IO, DISP_MAX };
28 #define FMT_SHOWARGS 0x00000001
30 extern enum displaymodes displaymode;
32 extern int pcpu_stats;
33 extern int overstrike;
36 extern int (*compares[])(const void*, const void*);
40 const char* kill_procs(char *);
41 const char* renice_procs(char *);
43 extern char copyright[];
48 * The space command forces an immediate update. Sometimes, on loaded
49 * systems, this update will take a significant period of time (because all
50 * the output is buffered). So, if the short-term load average is above
51 * "LoadMax", then top will put the cursor home immediately after the space
52 * is pressed before the next update is attempted. This serves as a visual
53 * acknowledgement of the command.
58 * "Nominal_TOPN" is used as the default TOPN when
59 * the output is a dumb terminal. If we didn't do this, then
61 * process in the system when running top on a dumb terminal (or redirected
62 * to a file). Note that Nominal_TOPN is a default: it can still be
63 * overridden on the command line, even with the value "infinity".
65 #define Nominal_TOPN 18