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