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 */ 11 extern 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 23 enum displaymodes { DISP_CPU = 0, DISP_IO, DISP_MAX }; 24 25 /* 26 * Format modifiers 27 */ 28 #define FMT_SHOWARGS 0x00000001 29 30 extern enum displaymodes displaymode; 31 32 extern int pcpu_stats; 33 extern int overstrike; 34 extern pid_t mypid; 35 36 extern int (*compares[])(const void*, const void*); 37 38 extern int show_args; 39 40 const char* kill_procs(char *); 41 const char* renice_procs(char *); 42 43 extern char copyright[]; 44 45 void 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