Next: Sending Signals - kill() Up: Process Control and Management Previous: pipe() - Low level Piping . ... When a process terminates abnormally it usually tries to send a signal indicating what went wrong. ... The process uses signals which can be numbered 0 to 31. Macros are defined in signal.h header file for common signals. ... Sending Signals - kill() . Receiving signals - signal() . ... Wed Sep 14 10:06:31 BST 1994 ...

vmeselectrcv - create a subset of an AO datafile containing 1 receiver (or all but 1 receiver). outputfile . ... To process a particular receiver in a datafile it is better to add an option to the program to just process that receiver rather than duplicate the data. binary: /pkg/aosoft/fedora4/"arch"/bin/vmeselectrcv Source: /share/megs/phil/svn/aosoft/src/gen/vmeselectrcv.c vmeselectrcv is compiled to run on linux. return to: filter_programs return to: home_~phil ...

The NTP standard specifies an extension which provides cryptographic authentication of received NTP packets. ... The specification allows any one of possibly 4 billion keys, numbered with 32-bit key identifiers, to be used to authenticate an association. ... In the case of MD5, the keys are 64 bits (8 bytes). xntpd reads its keys from a file specified using the -k command line option or the keys statement in the configuration file. ... A zero key in NTP format would be specified as 8080808080808080 . ...

Tasks in GIPSY are the application programs which do useful work for the user. ... To start a task without parameters, only the name of the task needs to be supplied. taskname To specify parameters, any number of keyword-value pairs separated by blanks can be added to the taskname: taskname keyword1 = value1 keyword2 = value2 .. ... The user can set a parameter in the task context to change requests for hidden keywords into requests for defaulted keywords. ... Tasks all run in a context . ...

Use the XPA programs to send/receive data to/from XPA servers from the command line or from scripts. <data> | xpaset [-h] [-i nsinet] [-m method] [-n] [-p] [-s] [-t sval,lval] [-u users] [-v] <template> [paramlist] xpaget [-h] [-i nsinet] [-m method] [-s] [-t sval,lval] [-u users] <template> [paramlist] xpainfo [-h] [-i nsinet] [-m method] [-n] [-s] [-t sval,lval] [-u users] <template> [paramlist] xpaaccess [-c] [-h] [-i nsinet] [-m method] [-n] [-u users] [-v|-V] <template> [type] <data> | ...

In Actor Prolog a resident is a special mechanism that helps processes to inspect state of other processes. A resident observes the state of a specified (target) process and if the state of the process changes (for instance, after message handling) it proves a specified predicate of the process. ... Work of the resident. ... Any change of the list of target processes or arguments of resident function results in activation of the resident and repeated collection of information in the target worlds. ...

To proceed to drawing tracks of some objects select Tracks item in menu bar and then select Input Data in drop-down menu. Enter initial and final dates of time interval in corresponding data fields of the Input Data dialog box Input Data . ... The frame with horizontal and vertical scales corresponding to the right ascension and declination axes appears on screen. ... Depending on specifications introduced in the Input Data dialog box the picture represents tracks up to three different objects. ...

... Directives | ... Apache HTTP Server Version 2.2 . ... The most important directives used to control this MPM are ThreadsPerChild , which controls the number of threads deployed by each child process and MaxClients , which controls the maximum total number of threads that may be launched. ... Two directives set hard limits on the number of active child processes and the number of server threads in a child process, and can only be changed by fully stopping the server and then starting it again. ...

... Directives | ... Apache HTTP Server Version 2.2 . ... The most important directives used to control this MPM are ThreadsPerChild , which controls the number of threads deployed by each child process and MaxClients , which controls the maximum total number of threads that may be launched. ... Two directives set hard limits on the number of active child processes and the number of server threads in a child process, and can only be changed by fully stopping the server and then starting it again. ...

... The pinhole simulation program is a computationally and memory intensive task. ... A parallel version was developed instead, to enable distributed processing on a cluster of workstations. The program makes use of the Message Passing Interface (MPI) standard for parallel processing, implemented as an API (Application Programming Interface) to the Local Area Multicomputer (LAM) programming environment developed at the Ohio Supercomputer Center. ...

To write a successful HST proposal it is useful to have some insight into the process by which proposals are reviewed and selected. ... How the New Cycle 9 Review Process Worked , December 1999, pp. 21-22. by Meg Urry [ cmu@stsci.edu ], Head of the STScI Science Program Selection Office. ... Evolu tion of the HST Proposal Selecti