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 /* Maximum number of columns allowed for display */
18 /* Special atoi routine returns either a non-negative number or one of: */
22 /* maximum number we can have */
23 #define Largest 0x7fffffff
25 /* Exit code for system errors */
26 #define TOP_EX_SYS_ERROR 23
28 enum displaymodes { DISP_CPU = 0, DISP_IO, DISP_MAX };
33 #define FMT_SHOWARGS 0x00000001
35 extern enum displaymodes displaymode;
37 extern int pcpu_stats;
38 extern int overstrike;
41 extern const char * myname;
43 extern int (*compares[])(const void*, const void*);
45 const char* kill_procs(char *);
46 const char* renice_procs(char *);
48 extern char copyright[];
53 * The space command forces an immediate update. Sometimes, on loaded
54 * systems, this update will take a significant period of time (because all
55 * the output is buffered). So, if the short-term load average is above
56 * "LoadMax", then top will put the cursor home immediately after the space
57 * is pressed before the next update is attempted. This serves as a visual
58 * acknowledgement of the command.
63 * "Nominal_TOPN" is used as the default TOPN when
64 * the output is a dumb terminal. If we didn't do this, then
66 * process in the system when running top on a dumb terminal (or redirected
67 * to a file). Note that Nominal_TOPN is a default: it can still be
68 * overridden on the command line, even with the value "infinity".
70 #define Nominal_TOPN 18