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83281303f6
Prepare stats function to handle a new format labelled "stats-file". Its purpose is to generate a statistics dump with a format closed from the CSV output. Such output will be then used to preload haproxy internal counters on process startup. stats-file output differs from a standard CSV on several points. First, only an excerpt of all statistics is outputted. All values that does not make sense to preload are excluded. For the moment, stats-file only list stats fully defined via "struct stat_col" method. Contrary to a CSV, sll columns of a stats-file will be filled. As such, empty field value is used to mark stats which should not be outputted. Some adaptation specifics to stats-file are necessary into me_generate_field(). First, stats-file will output separatedly values from frontend and backend sides with their own respective set of columns. As such, an empty field value is returned if stat is not defined for either frontend/listener, or backend/server when outputting the other side. Also, as stats-file does not support empty column, stcol_hide() is not used for it. A minor adjustement was necessary for stats_fill_fe_line() to pass context flags. This is necessary to detect stat output format. All other listener/server/backend corresponding functions already have it. |
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