56 lines
1.5 KiB
C
56 lines
1.5 KiB
C
#ifndef STATUS_H
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#define STATUS_H
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/* Status reports
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*
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* The status will be reported by writing to a file descriptor. The
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* status report will be on a single line. The status format will be:
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*
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* A=B C=D
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*
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* That is, a space-separated list of label,value pairs, each pair
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* separated by an '=' character. Neither ' ' nor '=' will appear in
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* either labels or values.
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*
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* Boolean values will appear as the strings "true" and "false".
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*
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* The following status fields are defined:
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*
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* has_control:
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* This will be false when the server is listening for an incoming
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* migration. It will switch to true when the end-of-migration
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* handshake is successfully completed.
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* If the server is started in "serve" mode, this will never be
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* false.
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*
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* is_migrating:
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* This will be false when the server is started in either "listen"
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* or "serve" mode. It will become true when a server in "serve"
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* mode starts a migration, and will become false again when the
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* migration terminates, successfully or not.
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* If the server is currently in "listen" mode, this will never b
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* true.
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*/
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#include "serve.h"
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struct status {
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int has_control;
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int is_mirroring;
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};
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/** Create a status object for the given server. */
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struct status * status_create( struct server * );
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/** Output the given status object to the given file descriptot */
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int status_write( struct status *, int fd );
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/** Free the status object */
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void status_destroy( struct status * );
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#endif
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