diff options
Diffstat (limited to 'libvirt/libvirt.ml')
| -rw-r--r-- | libvirt/libvirt.ml | 379 |
1 files changed, 379 insertions, 0 deletions
diff --git a/libvirt/libvirt.ml b/libvirt/libvirt.ml new file mode 100644 index 0000000..14dca54 --- /dev/null +++ b/libvirt/libvirt.ml @@ -0,0 +1,379 @@ +(* OCaml bindings for libvirt. + (C) Copyright 2007 Richard W.M. Jones, Red Hat Inc. + http://libvirt.org/ + $Id: libvirt.ml,v 1.2 2007/08/21 13:24:08 rjones Exp $ +*) + +type uuid = string + +type xml = string + +external get_version : ?driver:string -> unit -> int * int = "ocaml_libvirt_get_version" + +let uuid_length = 16 +let uuid_string_length = 36 + +(* http://caml.inria.fr/pub/ml-archives/caml-list/2004/07/80683af867cce6bf8fff273973f70c95.en.html *) +type rw = [`R|`W] +type ro = [`R] + +module Connect = +struct + type 'rw t + + type node_info = { + model : string; + memory : int64; + cpus : int; + mhz : int; + nodes : int; + sockets : int; + cores : int; + threads : int; + } + + external connect : ?name:string -> unit -> rw t = "ocaml_libvirt_connect_open" + external connect_readonly : ?name:string -> unit -> ro t = "ocaml_libvirt_connect_open_readonly" + external close : [>`R] t -> unit = "ocaml_libvirt_connect_close" + external get_type : [>`R] t -> string = "ocaml_libvirt_connect_get_type" + external get_version : [>`R] t -> int = "ocaml_libvirt_connect_get_version" + external get_hostname : [>`R] t -> string = "ocaml_libvirt_connect_get_hostname" + external get_uri : [>`R] t -> string = "ocaml_libvirt_connect_get_uri" + external get_max_vcpus : [>`R] t -> ?type_:string -> unit -> int = "ocaml_libvirt_connect_get_max_vcpus" + external list_domains : [>`R] t -> int -> int array = "ocaml_libvirt_connect_list_domains" + external num_of_domains : [>`R] t -> int = "ocaml_libvirt_connect_num_of_domains" + external get_capabilities : [>`R] t -> string = "ocaml_libvirt_connect_get_capabilities" + external num_of_defined_domains : [>`R] t -> int = "ocaml_libvirt_connect_num_of_defined_domains" + external list_defined_domains : [>`R] t -> int -> string array = "ocaml_libvirt_connect_list_defined_domains" + external num_of_networks : [>`R] t -> int = "ocaml_libvirt_connect_num_of_networks" + external list_networks : [>`R] t -> int -> string array = "ocaml_libvirt_connect_list_networks" + external num_of_defined_networks : [>`R] t -> int = "ocaml_libvirt_connect_num_of_defined_networks" + external list_defined_networks : [>`R] t -> int -> string array = "ocaml_libvirt_connect_list_defined_networks" + external get_node_info : [>`R] t -> node_info = "ocaml_libvirt_connect_get_node_info" + + (* See VIR_NODEINFO_MAXCPUS macro defined in <libvirt.h>. *) + let maxcpus_of_node_info { nodes = nodes; sockets = sockets; + cores = cores; threads = threads } = + nodes * sockets * cores * threads + + (* See VIR_CPU_MAPLEN macro defined in <libvirt.h>. *) + let cpumaplen nr_cpus = + (nr_cpus + 7) / 8 + + (* See VIR_USE_CPU, VIR_UNUSE_CPU, VIR_CPU_USABLE macros defined in <libvirt.h>. *) + let use_cpu cpumap cpu = + cpumap.[cpu/8] <- + Char.chr (Char.code cpumap.[cpu/8] lor (1 lsl (cpu mod 8))) + let unuse_cpu cpumap cpu = + cpumap.[cpu/8] <- + Char.chr (Char.code cpumap.[cpu/8] land (lnot (1 lsl (cpu mod 8)))) + let cpu_usable cpumaps maplen vcpu cpu = + Char.code cpumaps.[vcpu*maplen + cpu/8] land (1 lsl (cpu mod 8)) <> 0 + + external const : [>`R] t -> ro t = "%identity" +end + +module Domain = +struct + type 'rw dom + type 'rw t = 'rw dom * 'rw Connect.t + + type state = + | InfoNoState | InfoRunning | InfoBlocked | InfoPaused + | InfoShutdown | InfoShutoff | InfoCrashed + + type info = { + state : state; + max_mem : int64; + memory : int64; + nr_virt_cpu : int; + cpu_time : int64; + } + + type vcpu_state = VcpuOffline | VcpuRunning | VcpuBlocked + + type vcpu_info = { + number : int; + vcpu_state : vcpu_state; + vcpu_time : int64; + cpu : int; + } + + type sched_param = string * sched_param_value + and sched_param_value = + | SchedFieldInt32 of int32 | SchedFieldUInt32 of int32 + | SchedFieldInt64 of int64 | SchedFieldUInt64 of int64 + | SchedFieldFloat of float | SchedFieldBool of bool + + type migrate_flag = Live + + type block_stats = { + rd_req : int64; + rd_bytes : int64; + wr_req : int64; + wr_bytes : int64; + errs : int64; + } + + type interface_stats = { + rx_bytes : int64; + rx_packets : int64; + rx_errs : int64; + rx_drop : int64; + tx_bytes : int64; + tx_packets : int64; + tx_errs : int64; + tx_drop : int64; + } + + external create_linux : [>`W] Connect.t -> xml -> rw t = "ocaml_libvirt_domain_create_linux" + external lookup_by_id : 'a Connect.t -> int -> 'a t = "ocaml_libvirt_domain_lookup_by_id" + external lookup_by_uuid : 'a Connect.t -> uuid -> 'a t = "ocaml_libvirt_domain_lookup_by_uuid" + external lookup_by_uuid_string : 'a Connect.t -> string -> 'a t = "ocaml_libvirt_domain_lookup_by_uuid_string" + external lookup_by_name : 'a Connect.t -> string -> 'a t = "ocaml_libvirt_domain_lookup_by_name" + external destroy : [>`W] t -> unit = "ocaml_libvirt_domain_destroy" + external free : [>`R] t -> unit = "ocaml_libvirt_domain_free" + external suspend : [>`W] t -> unit = "ocaml_libvirt_domain_suspend" + external resume : [>`W] t -> unit = "ocaml_libvirt_domain_resume" + external save : [>`W] t -> string -> unit = "ocaml_libvirt_domain_save" + external restore : [>`W] Connect.t -> string -> unit = "ocaml_libvirt_domain_restore" + external core_dump : [>`W] t -> string -> unit = "ocaml_libvirt_domain_core_dump" + external shutdown : [>`W] t -> unit = "ocaml_libvirt_domain_shutdown" + external reboot : [>`W] t -> unit = "ocaml_libvirt_domain_reboot" + external get_name : [>`R] t -> string = "ocaml_libvirt_domain_get_name" + external get_uuid : [>`R] t -> uuid = "ocaml_libvirt_domain_get_uuid" + external get_uuid_string : [>`R] t -> string = "ocaml_libvirt_domain_get_uuid_string" + external get_id : [>`R] t -> int = "ocaml_libvirt_domain_get_id" + external get_os_type : [>`R] t -> string = "ocaml_libvirt_domain_get_os_type" + external get_max_memory : [>`R] t -> int64 = "ocaml_libvirt_domain_get_max_memory" + external set_max_memory : [>`W] t -> int64 -> unit = "ocaml_libvirt_domain_set_max_memory" + external set_memory : [>`W] t -> int64 -> unit = "ocaml_libvirt_domain_set_memory" + external get_info : [>`R] t -> info = "ocaml_libvirt_domain_get_info" + external get_xml_desc : [>`R] t -> xml = "ocaml_libvirt_domain_get_xml_desc" + external get_scheduler_type : [>`R] t -> string * int = "ocaml_libvirt_domain_get_scheduler_type" + external get_scheduler_parameters : [>`R] t -> int -> sched_param array = "ocaml_libvirt_domain_get_scheduler_parameters" + external set_scheduler_parameters : [>`W] t -> sched_param array -> unit = "ocaml_libvirt_domain_set_scheduler_parameters" + external define_xml : [>`W] Connect.t -> xml -> rw t = "ocaml_libvirt_domain_define_xml" + external undefine : [>`W] t -> unit = "ocaml_libvirt_domain_undefine" + external create : [>`W] t -> unit = "ocaml_libvirt_domain_create" + external get_autostart : [>`R] t -> bool = "ocaml_libvirt_domain_get_autostart" + external set_autostart : [>`W] t -> bool -> unit = "ocaml_libvirt_domain_set_autostart" + external set_vcpus : [>`W] t -> int -> unit = "ocaml_libvirt_domain_set_vcpus" + external pin_vcpu : [>`W] t -> int -> string -> unit = "ocaml_libvirt_domain_pin_vcpu" + external get_vcpus : [>`R] t -> int -> int -> int * vcpu_info array * string = "ocaml_libvirt_domain_get_vcpus" + external get_max_vcpus : [>`R] t -> int = "ocaml_libvirt_domain_get_max_vcpus" + external attach_device : [>`W] t -> xml -> unit = "ocaml_libvirt_domain_attach_device" + external detach_device : [>`W] t -> xml -> unit = "ocaml_libvirt_domain_detach_device" + external migrate : [>`W] t -> [>`W] Connect.t -> migrate_flag list -> ?dname:string -> ?uri:string -> ?bandwidth:int -> unit -> rw t = "ocaml_libvirt_domain_migrate_bytecode" "ocaml_libvirt_domain_migrate_native" + external block_stats : [>`R] t -> string -> block_stats = "ocaml_libvirt_domain_block_stats" + external interface_stats : [>`R] t -> string -> interface_stats = "ocaml_libvirt_domain_interface_stats" + + external const : [>`R] t -> ro t = "%identity" +end + +module Network = +struct + type 'rw net + type 'rw t = 'rw net * 'rw Connect.t + + external lookup_by_name : 'a Connect.t -> string -> 'a t = "ocaml_libvirt_network_lookup_by_name" + external lookup_by_uuid : 'a Connect.t -> uuid -> 'a t = "ocaml_libvirt_network_lookup_by_uuid" + external lookup_by_uuid_string : 'a Connect.t -> string -> 'a t = "ocaml_libvirt_network_lookup_by_uuid_string" + external create_xml : [>`W] Connect.t -> xml -> rw t = "ocaml_libvirt_network_create_xml" + external define_xml : [>`W] Connect.t -> xml -> rw t = "ocaml_libvirt_network_define_xml" + external undefine : [>`W] t -> unit = "ocaml_libvirt_network_undefine" + external create : [>`W] t -> unit = "ocaml_libvirt_network_create" + external destroy : [>`W] t -> unit = "ocaml_libvirt_network_destroy" + external free : [>`R] t -> unit = "ocaml_libvirt_network_free" + external get_name : [>`R] t -> string = "ocaml_libvirt_network_get_name" + external get_uuid : [>`R] t -> uuid = "ocaml_libvirt_network_get_uuid" + external get_uuid_string : [>`R] t -> string = "ocaml_libvirt_network_get_uuid_string" + external get_xml_desc : [>`R] t -> xml = "ocaml_libvirt_network_get_xml_desc" + external get_bridge_name : [>`R] t -> string = "ocaml_libvirt_network_get_bridge_name" + external get_autostart : [>`R] t -> bool = "ocaml_libvirt_network_get_autostart" + external set_autostart : [>`W] t -> bool -> unit = "ocaml_libvirt_network_set_autostart" + + external const : [>`R] t -> ro t = "%identity" +end + +module Virterror = +struct + type code = + | VIR_ERR_OK + | VIR_ERR_INTERNAL_ERROR + | VIR_ERR_NO_MEMORY + | VIR_ERR_NO_SUPPORT + | VIR_ERR_UNKNOWN_HOST + | VIR_ERR_NO_CONNECT + | VIR_ERR_INVALID_CONN + | VIR_ERR_INVALID_DOMAIN + | VIR_ERR_INVALID_ARG + | VIR_ERR_OPERATION_FAILED + | VIR_ERR_GET_FAILED + | VIR_ERR_POST_FAILED + | VIR_ERR_HTTP_ERROR + | VIR_ERR_SEXPR_SERIAL + | VIR_ERR_NO_XEN + | VIR_ERR_XEN_CALL + | VIR_ERR_OS_TYPE + | VIR_ERR_NO_KERNEL + | VIR_ERR_NO_ROOT + | VIR_ERR_NO_SOURCE + | VIR_ERR_NO_TARGET + | VIR_ERR_NO_NAME + | VIR_ERR_NO_OS + | VIR_ERR_NO_DEVICE + | VIR_ERR_NO_XENSTORE + | VIR_ERR_DRIVER_FULL + | VIR_ERR_CALL_FAILED + | VIR_ERR_XML_ERROR + | VIR_ERR_DOM_EXIST + | VIR_ERR_OPERATION_DENIED + | VIR_ERR_OPEN_FAILED + | VIR_ERR_READ_FAILED + | VIR_ERR_PARSE_FAILED + | VIR_ERR_CONF_SYNTAX + | VIR_ERR_WRITE_FAILED + | VIR_ERR_XML_DETAIL + | VIR_ERR_INVALID_NETWORK + | VIR_ERR_NETWORK_EXIST + | VIR_ERR_SYSTEM_ERROR + | VIR_ERR_RPC + | VIR_ERR_GNUTLS_ERROR + | VIR_WAR_NO_NETWORK + | VIR_ERR_NO_DOMAIN + | VIR_ERR_NO_NETWORK + + let string_of_code = function + | VIR_ERR_OK -> "VIR_ERR_OK" + | VIR_ERR_INTERNAL_ERROR -> "VIR_ERR_INTERNAL_ERROR" + | VIR_ERR_NO_MEMORY -> "VIR_ERR_NO_MEMORY" + | VIR_ERR_NO_SUPPORT -> "VIR_ERR_NO_SUPPORT" + | VIR_ERR_UNKNOWN_HOST -> "VIR_ERR_UNKNOWN_HOST" + | VIR_ERR_NO_CONNECT -> "VIR_ERR_NO_CONNECT" + | VIR_ERR_INVALID_CONN -> "VIR_ERR_INVALID_CONN" + | VIR_ERR_INVALID_DOMAIN -> "VIR_ERR_INVALID_DOMAIN" + | VIR_ERR_INVALID_ARG -> "VIR_ERR_INVALID_ARG" + | VIR_ERR_OPERATION_FAILED -> "VIR_ERR_OPERATION_FAILED" + | VIR_ERR_GET_FAILED -> "VIR_ERR_GET_FAILED" + | VIR_ERR_POST_FAILED -> "VIR_ERR_POST_FAILED" + | VIR_ERR_HTTP_ERROR -> "VIR_ERR_HTTP_ERROR" + | VIR_ERR_SEXPR_SERIAL -> "VIR_ERR_SEXPR_SERIAL" + | VIR_ERR_NO_XEN -> "VIR_ERR_NO_XEN" + | VIR_ERR_XEN_CALL -> "VIR_ERR_XEN_CALL" + | VIR_ERR_OS_TYPE -> "VIR_ERR_OS_TYPE" + | VIR_ERR_NO_KERNEL -> "VIR_ERR_NO_KERNEL" + | VIR_ERR_NO_ROOT -> "VIR_ERR_NO_ROOT" + | VIR_ERR_NO_SOURCE -> "VIR_ERR_NO_SOURCE" + | VIR_ERR_NO_TARGET -> "VIR_ERR_NO_TARGET" + | VIR_ERR_NO_NAME -> "VIR_ERR_NO_NAME" + | VIR_ERR_NO_OS -> "VIR_ERR_NO_OS" + | VIR_ERR_NO_DEVICE -> "VIR_ERR_NO_DEVICE" + | VIR_ERR_NO_XENSTORE -> "VIR_ERR_NO_XENSTORE" + | VIR_ERR_DRIVER_FULL -> "VIR_ERR_DRIVER_FULL" + | VIR_ERR_CALL_FAILED -> "VIR_ERR_CALL_FAILED" + | VIR_ERR_XML_ERROR -> "VIR_ERR_XML_ERROR" + | VIR_ERR_DOM_EXIST -> "VIR_ERR_DOM_EXIST" + | VIR_ERR_OPERATION_DENIED -> "VIR_ERR_OPERATION_DENIED" + | VIR_ERR_OPEN_FAILED -> "VIR_ERR_OPEN_FAILED" + | VIR_ERR_READ_FAILED -> "VIR_ERR_READ_FAILED" + | VIR_ERR_PARSE_FAILED -> "VIR_ERR_PARSE_FAILED" + | VIR_ERR_CONF_SYNTAX -> "VIR_ERR_CONF_SYNTAX" + | VIR_ERR_WRITE_FAILED -> "VIR_ERR_WRITE_FAILED" + | VIR_ERR_XML_DETAIL -> "VIR_ERR_XML_DETAIL" + | VIR_ERR_INVALID_NETWORK -> "VIR_ERR_INVALID_NETWORK" + | VIR_ERR_NETWORK_EXIST -> "VIR_ERR_NETWORK_EXIST" + | VIR_ERR_SYSTEM_ERROR -> "VIR_ERR_SYSTEM_ERROR" + | VIR_ERR_RPC -> "VIR_ERR_RPC" + | VIR_ERR_GNUTLS_ERROR -> "VIR_ERR_GNUTLS_ERROR" + | VIR_WAR_NO_NETWORK -> "VIR_WAR_NO_NETWORK" + | VIR_ERR_NO_DOMAIN -> "VIR_ERR_NO_DOMAIN" + | VIR_ERR_NO_NETWORK -> "VIR_ERR_NO_NETWORK" + + type level = + | VIR_ERR_NONE + | VIR_ERR_WARNING + | VIR_ERR_ERROR + + let string_of_level = function + | VIR_ERR_NONE -> "VIR_ERR_NONE" + | VIR_ERR_WARNING -> "VIR_ERR_WARNING" + | VIR_ERR_ERROR -> "VIR_ERR_ERROR" + + type domain = + | VIR_FROM_NONE + | VIR_FROM_XEN + | VIR_FROM_XEND + | VIR_FROM_XENSTORE + | VIR_FROM_SEXPR + | VIR_FROM_XML + | VIR_FROM_DOM + | VIR_FROM_RPC + | VIR_FROM_PROXY + | VIR_FROM_CONF + | VIR_FROM_QEMU + | VIR_FROM_NET + | VIR_FROM_TEST + | VIR_FROM_REMOTE + + let string_of_domain = function + | VIR_FROM_NONE -> "VIR_FROM_NONE" + | VIR_FROM_XEN -> "VIR_FROM_XEN" + | VIR_FROM_XEND -> "VIR_FROM_XEND" + | VIR_FROM_XENSTORE -> "VIR_FROM_XENSTORE" + | VIR_FROM_SEXPR -> "VIR_FROM_SEXPR" + | VIR_FROM_XML -> "VIR_FROM_XML" + | VIR_FROM_DOM -> "VIR_FROM_DOM" + | VIR_FROM_RPC -> "VIR_FROM_RPC" + | VIR_FROM_PROXY -> "VIR_FROM_PROXY" + | VIR_FROM_CONF -> "VIR_FROM_CONF" + | VIR_FROM_QEMU -> "VIR_FROM_QEMU" + | VIR_FROM_NET -> "VIR_FROM_NET" + | VIR_FROM_TEST -> "VIR_FROM_TEST" + | VIR_FROM_REMOTE -> "VIR_FROM_REMOTE" + + type t = { + code : code; + domain : domain; + message : string option; + level : level; + conn : ro Connect.t option; + dom : ro Domain.t option; + str1 : string option; + str2 : string option; + str3 : string option; + int1 : int32; + int2 : int32; + net : ro Network.t option; + } + + let to_string { code = code; domain = domain; message = message } = + let buf = Buffer.create 128 in + Buffer.add_string buf "libvirt: "; + Buffer.add_string buf (string_of_code code); + Buffer.add_string buf ": "; + Buffer.add_string buf (string_of_domain domain); + Buffer.add_string buf ": "; + (match message with Some msg -> Buffer.add_string buf msg | None -> ()); + Buffer.contents buf + + external get_last_error : unit -> t option = "ocaml_libvirt_virterror_get_last_error" + external get_last_conn_error : [>`R] Connect.t -> t option = "ocaml_libvirt_virterror_get_last_conn_error" + external reset_last_error : unit -> unit = "ocaml_libvirt_virterror_reset_last_error" + external reset_last_conn_error : [>`R] Connect.t -> unit = "ocaml_libvirt_virterror_reset_last_conn_error" + + let no_error () = + { code = VIR_ERR_OK; domain = VIR_FROM_NONE; message = None; + level = VIR_ERR_NONE; conn = None; dom = None; + str1 = None; str2 = None; str3 = None; + int1 = 0_l; int2 = 0_l; net = None } +end + +exception Virterror of Virterror.t + +(* Initialization. *) +external c_init : unit -> unit = "ocaml_libvirt_init" +let () = + Callback.register_exception + "ocaml_libvirt_virterror" (Virterror (Virterror.no_error ())); + c_init () |