About Chandra Archive Proposer Instruments & Calibration Newsletters Data Analysis HelpDesk Calibration Database NASA Archives & Centers Chandra Science Links

Skip the navigation links
Search the ChIPS website
Last modified: December 2007

URL: http://cxc.harvard.edu/chips4.0/check_server_exists.sl.html

[ChIPS Logo]

Home page (ChIPS)
Help pages (AHELP)
List by alphabet
List by context
Jump to:
A B C D E G H I L M P R S T U
 
A
add_axis - py sl
add_contour - py sl
add_curve - py sl
add_frame - py sl
add_histogram - py sl
add_hline - py sl
add_label - py sl
add_line - py sl
add_plotarea - py sl
add_plot - py sl
add_point - py sl
add_region - py sl
add_vline - py sl
add_window - py sl
adjust_grid_gaps - py sl
adjust_grid_xrelsizes - py sl
adjust_grid_xrelsize - py sl
adjust_grid_yrelsizes - py sl
adjust_grid_yrelsize - py sl
attributes - py sl
 
B
bind_axes - py sl
 
C
check_server_exists - py sl
chipsid - py sl
chipsopt - py sl
chips
clear_errors - py sl
clear_plot - py sl
clear - py sl
collapse_depths - py sl
colors - py sl
connect - py sl
convert_coordinate - py sl
coordinates - py sl
create_server - py sl
currency - py sl
current_axis - py sl
current_contour - py sl
current_curve - py sl
current_frame - py sl
current_histogram - py sl
current_label - py sl
current_line - py sl
current_plot - py sl
current_point - py sl
current_region - py sl
current_window - py sl
 
D
deiconify_window - py sl
delete_axis - py sl
delete_contour - py sl
delete_curve - py sl
delete_frame - py sl
delete_histogram - py sl
delete_label - py sl
delete_line - py sl
delete_plot - py sl
delete_point - py sl
delete_region - py sl
delete_window - py sl
depthcontrol - py sl
disconnect - py sl
display_axis - py sl
display_contour - py sl
display_curve - py sl
display_depth - py sl
display_frame - py sl
display_histogram - py sl
display_label - py sl
display_line - py sl
display_plot - py sl
display_point - py sl
display_region - py sl
 
E
entitycreation - py sl
erase - py sl
 
G
get_attribute - py sl
get_axis - py sl
get_contour - py sl
get_curve - py sl
get_default_depth - py sl
get_errors - py sl
get_frame - py sl
get_histogram - py sl
get_label - py sl
get_line - py sl
get_pick - py sl
get_plot_range - py sl
get_plot - py sl
get_point - py sl
get_preferences - py sl
get_preference - py sl
get_region - py sl
get_server_id - py sl
get_window - py sl
get_xaxis - py sl
get_yaxis - py sl
grid_objects - py sl
 
H
hide_axis - py sl
hide_contour - py sl
hide_curve - py sl
hide_depth - py sl
hide_frame - py sl
hide_histogram - py sl
hide_label - py sl
hide_line - py sl
hide_major_ticks - py sl
hide_minor_ticks - py sl
hide_plot - py sl
hide_point - py sl
hide_region - py sl
 
I
iconify_window - py sl
info_bound_axes - py sl
info_coordinate - py sl
info_current - py sl
info_depth - py sl
info - py sl
 
L
limits - py sl
linear_scale - py sl
list_servers - py sl
load_font - py sl
load_preferences - py sl
load_state - py sl
lock - py sl
log_scale - py sl
 
M
make_figure - py sl
move_axis - py sl
move_frame - py sl
move_label - py sl
move_line - py sl
move_plot - py sl
move_point - py sl
move_region - py sl
move - py sl
 
P
pick - py sl
preferences - py sl
print_window - py sl
 
R
redo - py sl
reindex_depth - py sl
reposition_frame - py sl
reposition_plot - py sl
reverse_axes - py sl
 
S
save_preferences - py sl
save_state - py sl
setget - py sl
set_attribute - py sl
set_axis - py sl
set_cascading_property - py sl
set_contour - py sl
set_current - py sl
set_curve - py sl
set_default_depth - py sl
set_error_verbosity - py sl
set_frame - py sl
set_histogram - py sl
set_label - py sl
set_line - py sl
set_plot - py sl
set_point - py sl
set_preferences - py sl
set_preference_autoload - py sl
set_preference - py sl
set_region - py sl
set_window - py sl
set_xaxis - py sl
set_yaxis - py sl
show_major_ticks - py sl
show_minor_ticks - py sl
shuffle_axis - py sl
shuffle_backward - py sl
shuffle_back - py sl
shuffle_contour - py sl
shuffle_curve - py sl
shuffle_forward - py sl
shuffle_front - py sl
shuffle_histogram - py sl
shuffle_label - py sl
shuffle_line - py sl
shuffle_point - py sl
shuffle_region - py sl
shuffle - py sl
split - py sl
strip_chart - py sl
swap_object_positions - py sl
 
T
tile - py sl
 
U
unbind_axes - py sl
undo - py sl
unlock - py sl
 
Jump to:
A B C D E G H I L M P R S T U
Home page (ChIPS)
Help pages (AHELP)
List by alphabet
List by context
Jump to: Description Example Bugs See Also

AHELP for ChIPS 4.0 check_server_exists Context: sl.chips

Synopsis

Determines if the specified server is currently running.

Syntax

check_server_exists(server_id);

Description

  • server_id - the id of the chips server to query; generally a string such as "ChipsServer_17334_1".

The check_server_exists command allows the user to verify that a chips server is running before attempting to connect to it. The call can be used while the client is already connected to a different server without having to first disconnect.

The routine returns 1 if the requested server exists and 0 otherwise. If the server does not exist, the routine may take several seconds to return a value, since the request needs to time out.

The list_servers command ("ahelp sl.chips list_servers") can be used to find out all the ChIPS servers that are currently running on a machine.

Example

chips> check_server_exists("ChipsServer_17991_1");
1
chips> check_server_exists("ChipsServer_7358_1");
0

Two servers are checked: the first is running and the second doesn't exist.

Bugs

See the bugs pages on the ChIPS website for an up-to-date listing of known bugs.

See Also

sl.chips
connect, create_server, disconnect, get_server_id, list_servers, lock, unlock
Last modified: December 2007


Chandra Science | Chandra Home | Astronomy links | iCXC (CXC only) | Search


The Chandra X-Ray Center (CXC) is operated for NASA by the Smithsonian Astrophysical Observatory.
60 Garden Street, Cambridge, MA 02138 USA.    Email: cxcweb@head.cfa.harvard.edu
Smithsonian Institution, Copyright © 1998-2004. All rights reserved.