1/*- 2 * Top - a top users display for Berkeley Unix 3 */ 4 5#ifndef TOP_H 6#define TOP_H 7 8#include <unistd.h> 9 10/* Number of lines of header information on the standard screen */ 11extern int Header_lines; 12 13/* Special atoi routine returns either a non-negative number or one of: */ 14#define Infinity -1 15#define Invalid -2 16 17/* maximum number we can have */ 18#define Largest 0x7fffffff 19 20/* Exit code for system errors */ 21#define TOP_EX_SYS_ERROR 23 22 23enum displaymodes { DISP_CPU = 0, DISP_IO, DISP_MAX }; 24 25/* 26 * Format modifiers 27 */ 28#define FMT_SHOWARGS 0x00000001 29 30extern enum displaymodes displaymode; 31 32extern int pcpu_stats; 33extern int overstrike; 34extern pid_t mypid; 35 36extern int (*compares[])(const void*, const void*); 37 38extern int show_args; 39 40const char* kill_procs(char *); 41const char* renice_procs(char *); 42 43extern char copyright[]; 44 45void quit(int); 46 47/* 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. 54 */ 55#define LoadMax 5.0 56 57/* 58 * "Nominal_TOPN" is used as the default TOPN when 59 * the output is a dumb terminal. If we didn't do this, then 60 * we will get every 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". 64 */ 65#define Nominal_TOPN 18 66 67#endif /* TOP_H */ 68