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This patch annotates APIs with low or high priority.
In low set MUST be all APIs which might eventually access monitor
(and thus block indefinitely). Other APIs may be marked as high
priority. However, some must be (e.g. domainDestroy).
For high priority calls (HPC), there are some high priority workers
(HPW) created in the pool. HPW can execute only HPC, although normal
worker can process any call regardless priority. Therefore, only those
APIs which are guaranteed to end in reasonable small amount of time
can be marked as HPC.
The size of this HPC pool is static, because HPC are expected to end
quickly, therefore jobs assigned to this pool will be served quickly.
It can be configured in libvirtd.conf via prio_workers variable.
Default is set to 5.
To mark API with low or high priority, append priority:{low|high} to
it's comment in src/remote/remote_protocol.x. This is similar to
autogen|skipgen. If not marked, the generator assumes low as default.
89 lines
3.3 KiB
Plaintext
89 lines
3.3 KiB
Plaintext
(* /etc/libvirt/libvirtd.conf *)
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module Libvirtd =
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autoload xfm
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let eol = del /[ \t]*\n/ "\n"
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let value_sep = del /[ \t]*=[ \t]*/ " = "
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let indent = del /[ \t]*/ ""
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let array_sep = del /,[ \t\n]*/ ", "
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let array_start = del /\[[ \t\n]*/ "[ "
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let array_end = del /\]/ "]"
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let str_val = del /\"/ "\"" . store /[^\"]*/ . del /\"/ "\""
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let bool_val = store /0|1/
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let int_val = store /[0-9]+/
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let str_array_element = [ seq "el" . str_val ] . del /[ \t\n]*/ ""
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let str_array_val = counter "el" . array_start . ( str_array_element . ( array_sep . str_array_element ) * ) ? . array_end
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let str_entry (kw:string) = [ key kw . value_sep . str_val ]
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let bool_entry (kw:string) = [ key kw . value_sep . bool_val ]
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let int_entry (kw:string) = [ key kw . value_sep . int_val ]
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let str_array_entry (kw:string) = [ key kw . value_sep . str_array_val ]
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(* Config entry grouped by function - same order as example config *)
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let network_entry = bool_entry "listen_tls"
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| bool_entry "listen_tcp"
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| str_entry "tls_port"
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| str_entry "tcp_port"
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| str_entry "listen_addr"
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| bool_entry "mdns_adv"
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| str_entry "mdns_name"
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let sock_acl_entry = str_entry "unix_sock_group"
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| str_entry "unix_sock_ro_perms"
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| str_entry "unix_sock_rw_perms"
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| str_entry "unix_sock_dir"
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let authentication_entry = str_entry "auth_unix_ro"
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| str_entry "auth_unix_rw"
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| str_entry "auth_tcp"
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| str_entry "auth_tls"
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let certificate_entry = str_entry "key_file"
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| str_entry "cert_file"
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| str_entry "ca_file"
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| str_entry "crl_file"
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let authorization_entry = bool_entry "tls_no_verify_certificate"
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| bool_entry "tls_no_sanity_certificate"
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| str_array_entry "tls_allowed_dn_list"
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| str_array_entry "sasl_allowed_username_list"
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let processing_entry = int_entry "min_workers"
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| int_entry "max_workers"
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| int_entry "max_clients"
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| int_entry "max_requests"
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| int_entry "max_client_requests"
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| int_entry "prio_workers"
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let logging_entry = int_entry "log_level"
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| str_entry "log_filters"
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| str_entry "log_outputs"
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let auditing_entry = int_entry "audit_level"
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| bool_entry "audit_logging"
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(* Each enty in the config is one of the following three ... *)
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let entry = network_entry
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| sock_acl_entry
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| authentication_entry
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| certificate_entry
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| authorization_entry
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| processing_entry
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| logging_entry
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| auditing_entry
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let comment = [ label "#comment" . del /#[ \t]*/ "# " . store /([^ \t\n][^\n]*)?/ . del /\n/ "\n" ]
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let empty = [ label "#empty" . eol ]
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let record = indent . entry . eol
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let lns = ( record | comment | empty ) *
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let filter = incl "/etc/libvirt/libvirtd.conf"
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. Util.stdexcl
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let xfm = transform lns filter
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