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Annotation of src/usr.bin/top/top.local.h, Revision 1.3

1.3     ! deraadt     1: /*     $OpenBSD: top.local.h,v 1.2 1997/08/14 15:05:04 downsj Exp $    */
1.1       downsj      2:
                      3: /*
                      4:  *  Top - a top users display for Berkeley Unix
                      5:  *
                      6:  *  Definitions for things that might vary between installations.
                      7:  */
                      8:
                      9: /*
                     10:  *  The space command forces an immediate update.  Sometimes, on loaded
                     11:  *  systems, this update will take a significant period of time (because all
                     12:  *  the output is buffered).  So, if the short-term load average is above
                     13:  *  "LoadMax", then top will put the cursor home immediately after the space
                     14:  *  is pressed before the next update is attempted.  This serves as a visual
                     15:  *  acknowledgement of the command.  On Suns, "LoadMax" will get multiplied by
                     16:  *  "FSCALE" before being compared to avenrun[0].  Therefore, "LoadMax"
                     17:  *  should always be specified as a floating point number.
                     18:  */
                     19: #ifndef LoadMax
                     20: #define LoadMax  5.0
                     21: #endif
                     22:
                     23: /*
                     24:  *  "Table_size" defines the size of the hash tables used to map uid to
                     25:  *  username.  The number of users in /etc/passwd CANNOT be greater than
                     26:  *  this number.  If the error message "table overflow: too many users"
                     27:  *  is printed by top, then "Table_size" needs to be increased.  Things will
                     28:  *  work best if the number is a prime number that is about twice the number
                     29:  *  of lines in /etc/passwd.
                     30:  */
                     31: #ifndef Table_size
                     32: #define Table_size     503
                     33: #endif
                     34:
                     35: /*
                     36:  *  "Nominal_TOPN" is used as the default TOPN when Default_TOPN is Infinity
                     37:  *  and the output is a dumb terminal.  If we didn't do this, then
                     38:  *  installations who use a default TOPN of Infinity will get every
                     39:  *  process in the system when running top on a dumb terminal (or redirected
                     40:  *  to a file).  Note that Nominal_TOPN is a default:  it can still be
                     41:  *  overridden on the command line, even with the value "infinity".
                     42:  */
                     43: #ifndef Nominal_TOPN
                     44: #define Nominal_TOPN   18
                     45: #endif
                     46:
                     47: #ifndef Default_TOPN
1.2       downsj     48: #define Default_TOPN   -1
1.1       downsj     49: #endif
                     50:
                     51: #ifndef Default_DELAY
                     52: #define Default_DELAY  5
                     53: #endif
1.3     ! deraadt    54:
        !            55: /*
        !            56:  *  Top users/processes display for Unix
        !            57:  *  Version 3
        !            58:  *
        !            59:  * Copyright (c) 1984, 1989, William LeFebvre, Rice University
        !            60:  * Copyright (c) 1989, 1990, 1992, William LeFebvre, Northwestern University
        !            61:  *
        !            62:  * Redistribution and use in source and binary forms, with or without
        !            63:  * modification, are permitted provided that the following conditions
        !            64:  * are met:
        !            65:  * 1. Redistributions of source code must retain the above copyright
        !            66:  *    notice, this list of conditions and the following disclaimer.
        !            67:  * 2. Redistributions in binary form must reproduce the above copyright
        !            68:  *    notice, this list of conditions and the following disclaimer in the
        !            69:  *    documentation and/or other materials provided with the distribution.
        !            70:  *
        !            71:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
        !            72:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
        !            73:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
        !            74:  * IN NO EVENT SHALL THE AUTHOR OR HIS EMPLOYER BE LIABLE FOR ANY DIRECT, INDIRECT,
        !            75:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
        !            76:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
        !            77:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
        !            78:  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
        !            79:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
        !            80:  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
        !            81:  */
1.1       downsj     82:
                     83: /*
                     84:  *  If the local system's getpwnam interface uses random access to retrieve
                     85:  *  a record (i.e.: 4.3 systems, Sun "yellow pages"), then defining
                     86:  *  RANDOM_PW will take advantage of that fact.  If RANDOM_PW is defined,
                     87:  *  then getpwnam is used and the result is cached.  If not, then getpwent
                     88:  *  is used to read and cache the password entries sequentially until the
                     89:  *  desired one is found.
                     90:  *
                     91:  *  We initially set RANDOM_PW to something which is controllable by the
                     92:  *  Configure script.  Then if its value is 0, we undef it.
                     93:  */
                     94:
                     95: #define RANDOM_PW      1
                     96: #if RANDOM_PW == 0
                     97: #undef RANDOM_PW
                     98: #endif