2 * Top - a top users display for Berkeley Unix
12 /* Number of lines of header information on the standard screen */
13 extern int Header_lines;
15 /* Special atoi routine returns either a non-negative number or one of: */
19 /* maximum number we can have */
20 #define Largest 0x7fffffff
22 /* Exit code for system errors */
23 #define TOP_EX_SYS_ERROR 23
25 enum displaymodes { DISP_CPU = 0, DISP_IO, DISP_MAX };
30 #define FMT_SHOWARGS 0x00000001
32 extern enum displaymodes displaymode;
34 extern int pcpu_stats;
35 extern int overstrike;
38 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