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Index of types

ac_by_host [Nethttpd_services]
The service is protected by the access control rule
ac_by_host_rule [Nethttpd_services]
Access control by host: `Allow: Only the listed hosts are allowed; all other are denied, `Deny: The listed hosts are denied; all other are allowed
action [Netsys_signal]
`Callback is used for normal handlers, and `Install for exclusive handlers.
addr_spec [Netaddress]
The pair local_part@domain as O'Caml type.
address [Netplex_types]
address [Netgssapi]
Addresses tagged by address types
advice [Netsys_posix]
announcement [Nethttpd_kernel]
See config
anon_semaphore [Netsys_sem]
anon_semaphore [Netsys_posix]
arg_store [Netcgi]
This is the type of functions arg_store so that arg_store env name header tells whether to `Discard the argument or to store it into a `File or in `Memory.
arg_store [Netcgi_common]
arg_store_type [Netcgi_common]
argument_processing [Netcgi1_compat.Netcgi]
assignment [Shell]
An assignment redirects file descriptors while calling a process
at_flag [Netsys_posix]
auth_peeker [Rpc_server]
auth_result [Rpc_server]

bad_request_error [Nethttpd_kernel]
A bad request is a violation where the current request cannot be decoded, and it is not possible to accept further requests over the current connection.
binding [Rpc_server]
binding_async [Rpc_server]
binding_sync [Rpc_server]
buffer [Netmcore_buffer]
A buffer with a header of type 'h
buffer_descr [Netmcore_buffer]
The marshallable buffer descriptor

cache_control [Netcgi1_compat.Netcgi_types]
cache_control [Netcgi]
This is only a small subset of the HTTP 1.1 cache control features, but they are usually sufficient, and they work for HTTP/1.0 as well.
cache_control [Netcgi_common]
cache_control_token [Nethttp]
The cache control token for the Cache-control header
call_args [Rpc_portmapper_aux]
call_result [Rpc_portmapper_aux]
calling_error [Netgssapi]
Possible errors caused by the caller
camlbox [Netcamlbox]
A camlbox may receive messages of type 'a
camlbox_address [Netcamlbox]
The address of a camlbox is a string that does not contain slashes.
camlbox_sender [Netcamlbox]
An endpoint that may send messages of type 'a to a camlbox
capacity [Netplex_types]
How many connections a container can accept in addition to the existing connections: `Normal_quality(n,greedy): It can accept n connections with normal service quality, n > 0, `Low_quality(n,greedy): It can accept n connections with low service quality (e.g. because it is already quite loaded), n > 0, `Unavailable: No capacity free The greedy flag sets whether greedy accepts are allowed.
cgi_config [Netcgi1_compat.Netcgi_env]
Now simply called Netcgi.config.
cgi_cookie [Netcgi1_compat.Netcgi_types]
channel_binding_id [Http_client]
A channel binding identifies a requirement for the transport channel, especially whether plain HTTP is sufficient, or HTTPS needs to be used, and if so, whether there are further requirements for the SSL context.
channel_binding_id [Http_client_conncache]
channel_binding_id [Https_client]
channel_bindings [Netgssapi]
Channel binding as tuple (initiator_address, acceptor_address, application_data)
charset [Netconversion]
A charset is simply a set of code points.
client_session [Netmech_scram]
Session context for clients
clock [Netsys_posix]
clock_id [Netsys_posix]
close_mode [Netchannels]
Whether a close_out implies a commit or rollback operation
cmd [Ftp_client]
An FTP command.
cmd_state [Ftp_client]
The command state: `Not_connected: Not connected., `Init: Just connected, no greeting message arrived yet, `Success: Got the greeting message/last command was successful, `Proto_error: currently unused, `Temp_failure: Last command was not successful, and the code was between 400 and 499, `Perm_failure: Last command was not successful, and the code was between 500 and 599, `Rename_seq: Used instead of `Success after the RNFR command, `Restart_seq: Used instead of `Success after the REST command, `User_pass_seq: Used instead of `Success after the USER command when a password must be typed in, `User_acct_seq: Used instead of `Success after the USER command when an account ID must be typed in, `Pass_acct_seq: Used instead of `Success after the PASS command when an account iD must be typed in, `Preliminary: a reply with code 100 to 199. There will be another final reply for the command
cmdline_config [Netplex_main]
color [Netsys_mem]
command [Shell_sys]
A command describes how to start a new process
command_context [Shell_fs]
command_interpreter [Shell_fs]
The interpreter runs the command, and fills in sfs_status
complex_mime_body [Netmime]
complex_mime_body_ro [Netmime]
The read-only view of a complex_mime_message
complex_mime_message [Netmime]
complex_mime_message_ro [Netmime]
compute_resource_repr [Netmcore]
Centrally managed resources include: `File name: (Temporary) file name (absolute name), `Posix_shm name: Shared memory objects with name, `Posix_shm_sc(name,p): Shared memory objects with name, and attached container for semaphores with prefix p, `Posix_shm_preallocated(name,m): Shared memory objects already allocated by the master process. These objects are passed over to the worker processes by inheritance, and are always mapped at the same address. m is the bigarray mapping the object., `Posix_shm_preallocated_sc(name,m.p): Same, plus attached container for semaphores with prefix p, `Posix_sem name: Semaphores with name, `Fork_point(inh,f): Fork points where let pid=f arg fork a new process with argument arg. pid is the process identifier. The list inh are resources inherited from the master., `Joint_point f: Joint points where let res=f pid wait until the process pid terminates. If res is non-None it is the result value. If it is None, no result was passed back (including all pathological cases like crashes) Except fork and join points, these resources are also added to the pmanage object of Netplex (see Netplex_cenv.pmanage and Netsys_pmanage).
compute_resource_type [Netmcore]
condition [Netmcore_condition]
The condition variable
config [Netcgi]
config [Netcgi_common]
config_error_response [Nethttpd_plex]
Three type abbreviations for logging functions
config_log_access [Nethttpd_plex]
config_log_error [Nethttpd_plex]
config_tree [Netplex_types]
conn_state [Http_client_conncache]
A TCP connection may be either `Inactive, i.e.
connect_address [Uq_engines]
Specifies the service to connect to:
connect_options [Uq_engines]
connect_status [Uq_engines]
This type corresponds with Uq_engines.connect_address: An engine connecting with an address `X will return a status of `X.
connection [Netcgi_dbi.DBI_DRIVER]
connection [Netcgi_dbi.DBI_POOL]
connection_cache [Http_client]
connection_directive [Netcgi]
Directive how to go on with the current connection: `Conn_close: Just shut down and close descriptor, `Conn_close_linger: Linger, shut down, and close descriptor, `Conn_keep_alive: Check for another request on the same connection, `Conn_error e: Shut down and close descriptor, and handle the exception e
connection_id [Rpc_server]
identifies the connection of a session.
connector [Rpc_server]
connector [Rpc_client]
connector [Rpc_xti_client]
connector [Rpc_key_service]
How to connect to keyserv: `Direct(c,p): Create a direct RPC connection to the keyserv program listening at c using protocol p. This usually only works if c is a local transport like Unix Domain., `Keyenvoy path: Call the keyenvoy program installed at path
consumer [Shell]
A consumer receives data from a called process
container [Netsys_sem]
The container of the semaphore is the shared memory object
container_id [Netplex_types]
Such objects identify containers.
container_state [Netplex_types]
The container state for workload management: `Accepting(n,t): The container is accepting further connections. It currently processes n connections. The last connection was accepted at time t (seconds since the epoch)., `Busy: The container does not accept connections, `Starting t: The container was started at time t and is not yet ready., `Shutting_down: The container is being shutted down.
context [Netgssapi]
A context is also opaque, and the same rules apply as for credential.
cookie [Nethttp]
Compatibility name.
copy_flag [Netfs]
copy_task [Uq_engines]
Specifies the task the copier class has to do:
create_process_option [Netsys_win32]
cred_usage [Netgssapi]
credential [Netgssapi]
A credential is opaque for the caller of the GSS-API.
ctrl_op [Netshm]
cursor [Netconversion]
A cursor denotes a character position in an encoded string
custom_ops [Netsys_mem]

data_chunk [Nethttpd_kernel]
A data_chunk is a substring of a string.
data_manager [Netshm_data]
The data manager consists of several manager functions.
datagram_type [Uq_engines]
- `Unix_dgram: Datagrams over Unix domain sockets `Inet_udp: Internet v4 UDP protocol, `Inet6_udp: Internet v6 UDP protocol
debug_target [Equeue.Debug]
decoder [Xdr]
see text above
descr [Netmcore_heap]
A descriptor ("address") pointing to the heap.
descr_state [Ftp_data_endpoint]
Describes the state of the socket used for data transfers.
dlogger [Netlog.Debug]
Debug logger: The first string is the module name, and the second is the message
document [Nethtml]
The type document represents parsed HTML documents:
domain [Netaddress]
The domain of the mailbox
dynamic_service [Nethttpd_services]

element_class [Nethtml]
Element classes are a property used in the HTML DTD.
encap [Netplex_encap]
An encapsulated value with a type identifier
encap [Netplex_types]
encap [Nethttpd_plex]
encoder [Xdr]
see text above
encoding [Netconversion]
The polymorphic variant enumerating the supported encodings.
engine_req_state [Nethttpd_engine]
engine_state [Uq_engines]
The type of states with result values of type 't: `Working n: The engine is working. The number n counts the number of events that have been processed., `Done arg: The engine has completed its task without errors. The argument arg is the result value of the engine, `Error exn: The engine has aborted because of an error. The argument exn describes the error as an exception., `Aborted: The engine has aborted because the abort method was called
engine_state [Uq_resolver]
entity_set [Netencoding.Html]
entry [Netsys_signal]
entry [Ftp_client]
A file entry (name, facts).
entry_perm [Ftp_client]
Permissions: `Append: append to file possible, `Create: file can be created in this dir, `Delete: file or dir can be deleted, `Enter: dir can be entered, `Rename: file or dir can be renamed, `List: dir can be listed, `Mkdir: subdir can be created in this dir, `Delete_member: a file or dir can be deleted in this directory, `Read: a file can be retrieved, `Write: a file can be stored
entry_type [Ftp_client]
Types: `File: entry refers to file, `Cdir: entry refers to the directory being listed, `Pdir: entry is a parent of the directory being listed, `Dir: entry refers to directory, `Other: entry is neither file nor directory
environment [Shell_sys]
The abstract type of a process environment
etag [Nethttp]
Entity tags can be weak or strong
event [Uq_libevent.LIBOEVENT]
event [Unixqueue]
An event is triggered when the condition of an operation becomes true, when a signal happens, or when the event is (artificially) added to the event queue (add_event, below).
event_aggregator [Netsys_posix]
event_callback [Uq_libevent.LIBOEVENT]
event_flags [Uq_libevent.LIBOEVENT]
event_source [Netsys_posix]
exn_handler [Netcgi]
A function of type exn_handler allows to define a custom handler of uncaught exceptions raised by the unit -> unit parameter.
extended_address [Netplex_types]
Possible addresses: `Socket s: The socket at this socket address, `Socket_file f: The file f contains the (anonymous) port number of a socket bound to (This is meant as substitute for Unix Domain sockets on Win32.), `W32_pipe name: The Win32 pipe with this name which must be of the form "\\.\pipe\<pname>", `W32_pipe_file f: The file f contains the (random) name of a Win32 pipe, `Container(socket_dir,service_name,proto_name,thread_id): The special endpoint of the container for service_name that is running as thread_id. It is system-dependent what this endpoint "is" in reality, usually a socket or named pipe. If any container of a service is meant, the value `Any is substituted as a placeholder for a not yet known thread_id.

fatal_error [Nethttpd_kernel]
These are the serious protocol violations after that the daemon stops any further processing.
fd_action [Netsys_posix]
fd_style [Netsys]
Some information what kind of operations are reasonable for descriptors: `Read_write: The descriptor is neither a socket not one of the other special cases, so only read/write is possible if read/write is possible at all. This style is also used if it is meaningless to use data I/O like read/write at all., `Recv_send(sockaddr,peeraddr): The descriptor is a connected socket. recv/send are the preferred operations., `Recvfrom_sendto: The descriptor is an unconnected socket, and it is possible to ask for addresses when exchanging data, so recvfrom/sendto are the preferred operations., `Recv_send_implied: The descriptor is a socket with implied connection. There are no socket addresses. recv/send are the preferred operations. It is not possible to call getsockname or getpeername., `W32_pipe: The descriptor is a proxy descriptor for a Win32 named pipe as returned by Netsys_win32.pipe_descr. , `W32_pipe_server: The descriptor is a proxy descriptor for a Win32 pipe server as returned by Netsys_win32.pipe_server_descr. , `W32_event: The descriptor is a Win32 proxy descriptor for an event as returned by Netsys_win32.create_event. It is not possible to read/write with these descriptors., `W32_process: The descriptor is a proxy descriptor for a Win32 process as returned by Netsys_win32.create_process. It is not possible to read/write with these descriptors., `W32_input_thread: The descriptor is a proxy descriptor for a Win32-specific input thread as returned by Netsys_win32.create_input_thread. , `W32_output_thread: The descriptor is a proxy descriptor for a Win32-specific output thread as returned by Netsys_win32.create_output_thread. Win32: For the exact meaning of proxy descriptors, please see Netsys_win32.
file_kind [Netfs]
file_option [Nethttpd_services]
Add-on features for file services: `Enable_gzip: Deprecated. Same as `Enable_cooked_compression., `Enable_cooked_compression: Modifies the way compressed files are handled. Normally it is required that one accesses the compressed file (with suffix such as "gz") directly to get it in compressed form. If this option is enabled, though, the server also compresses the base file (without suffix such as "gz"), but only if the base file is accompanied by a compressed version (with suffix). E.g. if there is "foo" and "foo.gz", this enables that the accesses to "foo" can make use of compression., `Enable_index_file: If enabled, accesses to directories are redirected to index files. The possible file names are given in the string list. E.g. `Enable_index_file ["index.html"; "index.htm"]. It is redirected to these files, so these can be handled by different services if neccessary., `Enable_listings: If enabled, directory listings are generated by calling the argument function. The PATH_TRANSLATED property of the environment contains the absolute name of the directory to list. The PATH_INFO property is the corresponding URI path. SCRIPT_NAME is meaningless., `Override_compression_suffixes l: Tags the file suffixes in l as compression schemes. A pair (suffix,ce) sets that the suffix means the content encoding ce. Knowing this is important for determining the media type of the file.
file_service [Nethttpd_services]
Describes a file service
filename [Ftp_client]
There are several methods how to specify filenames: `NVFS name: The "Network Virtual File System" is the normal way of accessing FTP files. The client walks into the directory containing the file using CWD and CDUP commands, and calls the file operation from this directory. For simplicity, this client interprets slashes in name as path component separators. The FTP server will never see these slashes., `TVFS name: The optional "Trivial Network File System" avoids the CWD and CDUP commands. The tagged name is normalized (double slashed removed etc.), and is passed to the server as-is. Before using the faster TVFS one should check whether it is supported (feature "TVFS"). Note that even for TVFS there are no special files "." and ".."!, `Verbatim name: The string name is passed to the server without transforming it in any way.
final_state [Uq_engines]
Same as engine_state without `Working.
fork_point [Netmcore_process]
A fork point can start a new process with argument 'a
form_code [Ftp_client]
The form_code has a meaning when FTP is used to print files: `Non_print: This is not the case., `Telnet: Telnet control codes are used for vertical movement, `ASA: ASA (Fortran) control codes are used for vertical movement
format [Netlog]
fp4 [Rtypes]
single precision float
fp4 [Netnumber]
single precision float (IEEE "float")
fp8 [Rtypes]
double precision float
fp8 [Netnumber]
double precision float (IEEE "double")
from_uni_list [Netmappings]
front_token [Nethttpd_kernel]
Tokens generated by http_response: `Resp_wire_data are data tokens., `Resp_end indicates the end of the response.
ftp_method [Ftp_client]
An ftp_method is a small procedure doing some task
ftp_state [Ftp_client]
The ftp_state reflects the knowledge of the client about what has been agreed upon with the server.
fwd_mode [Shell_sys]
Determines whether and how keyboard signals (SIGINT, SIGQUIT) are forwarded from the caller to the new child.

glob_expr [Netglob]
glob_expr_atom [Netglob]
glob_mode [Netglob]
Modes: `Existing_paths: Only paths are returned that really exist, `All_paths: Generated paths not including *, ? and bracket expressions are returned even if they do not exist. For example, globbing for "fictive{1,2,3}" would return ["ficitve1";"fictive2";"fictive3"] independent of whether these files exist., `All_words: Patterns that cannot be resolved are returned as-is (like the shell does)
glob_set [Netglob]
A set of code points is given as a list of ranges (from,to), with from <= to.
group [Unixqueue]
A group is an abstract tag for a set of events, resources, and event handlers.
group_action [Shell_sys]
Determines in which process group the new process will run
group_mode [Shell_sys]
Specifies how the job instance is related to process groups

header_kind [Http_client]
The `Base header is set by the user of http_call and is never changed during processing the call.
heap [Netmcore_heap]
A heap where the type of the root element is 'a
host [Nethttpd_services]
For name- and IP-based virtual hosting this record describes the individual host.
host_distributor [Nethttpd_services]
Describes virtual hosting by pairs (host,service): If host matches the incoming request, the corresponding service is performed to generate the response.
how_to_reconnect [Http_client]
How to deal with automatic reconnections, especially when the connection crashes.
how_to_redirect [Http_client]
http_method [Nethttp]
Method name, URI
http_method [Netcgi]
http_method [Netcgi_common]
http_options [Http_client]
Options for the whole pipeline.
http_service_reaction [Nethttpd_types]
Indicates the immediate reaction upon an arriving HTTP header: `Accept_body is the regular way of processing requests. If necessary, the client is told to continue sending the rest of the request., `Reject_body can be used when the body of the request is not needed, and the response will be negative., `Static means to send the header and a constant string back as response. The header is taken from the environment if not explicitly passed, Note: The Content-Length header is automatically added. The Content-Type defaults to "text/html"., `File is similar to this, but the data come from a file. The file is specified by an absolute pathname. The range of the file is given by the start position and the length of the range. The header is taken from the environment if not explicitly passed, Note: The Content-Length header is automatically added. The Content-Type defaults to "text/html"., `Std_response is similar to `Static, however the body is the standard text for the status code. If the header is omitted, it is taken as empty. The third argument is an optional entry into the error log. Note: The Content-Length header is automatically added. The Content-Type defaults to "text/html".
http_status [Nethttp]
HTTP response status:
httpd_factory [Nethttpd_plex]
The type of the nethttpd_processor function

identity [Rpc_auth_sys]
Specifies the user: `Effective_user: Take the effective user of the process, `Real_user: Take the real user of the process, `This_user(uid,gid,sup_groups,hostname): Pretend to be this user
in_bdevice [Uq_io]
Devices with look-ahead
in_buffer [Uq_io]
in_device [Uq_io]
Currently supported devices for input: `Polldescr(st,fd,esys): The poll system call is used with file descriptor fd to wait for incoming data. The event system esys is the underlying event queue. This works well for pipes, sockets etc. but not for normal files. The style st can be obtained from fd via Netsys.get_fd_style., `Multiplex mplex: The multiplex controller mplex is used as device. , `Buffer buf: Data comes from the buffer buf (which in turn is connected with a second device), `Count_in(f,d): Data is read from d, and every time a few bytes n are read the function f n is called (which may raise an exception) Generally, it is not well supported to read in parallel several times from the same device.
in_record [Rpc_transport]
in_rule [Rpc_transport]
inetspec [Uq_engines]
inherit_request [Netmcore]
init_value_flag [Netsys_mem]
input_mode [Netcgi1_compat.Netcgi_env]
This is not used anywhere.
input_result [Netchannels]
This type is for the method enhanced_input of enhanced_raw_in_channel.
input_state [Netcgi1_compat.Netcgi_env]
This is not the business of the user.
int32_array [Netshm]
int4 [Rtypes]
32 bit signed integer
int4 [Netnumber]
32 bit signed integer
int8 [Rtypes]
64 bit signed integer
int8 [Netnumber]
64 bit signed integer
interprocess_token [Netgssapi]
Interprocess tokens.
ioprio [Netsys_posix]
ioprio_target [Netsys_posix]

job [Shell_sys]
job_instance [Shell_sys]
job_status [Shell_sys]
Indicates the status of the job
join_point [Netmcore_process]
A join point can wait until a process finishes with a result 'b

key_type [Netauth]
Key types: `Kc is used for computing checksums, `Ke is used for encrypting confidential messages, `Ki is used for computing integrity checksums for encrypted messages

langinfo [Netsys_posix]
level [Netlog]
The log levels (syslog-like)
level [Netsys_posix]
level [Netplex_types]
Log levels, modeled after syslog
lexbuf [Netulex.Ulexing]
linear_distributor [Nethttpd_services]
Services are selected by calling the selector function.
listen_address [Uq_engines]
Specifies the resource to listen on:
listen_options [Uq_engines]
local_part [Netaddress]
Usually the user name
local_receiver [Ftp_data_endpoint]
The local_receiver is the object that gets the data received over the data connection.
local_sender [Ftp_data_endpoint]
The local_sender is the object that provides the data sent over the data connection.
locking_method [Netshm]
The locking method is used to ensure that parallel read and write operations to the memory object do not interfer with each other.
logger [Netlog]
A logging function takes a level, and the message
loop_flags [Uq_libevent.LIBOEVENT]

major_status [Netgssapi]
The major status consists of these three elements.
mapping [Rpc_portmapper_aux]
mclient [Rpc_proxy.ManagedClient]
A managed client
mclient_config [Rpc_proxy.ManagedClient]
mechanism [Netmech_scram]
memory [Netsys_mem]
We consider 1-dimensional bigarrays of chars as memory buffers.
memory [Netsys_types]
We consider 1-dimensional bigarrays of chars as memory buffers.
memory_pool [Netsys_mem]
A pool of memory blocks that are all the same size and page-aligned (if the OS supports this).
message [Netgssapi]
Messages are represented as lists of mstring
method_distributor [Nethttpd_services]
The first service is selected for which the method filter accepts the request
method_filter [Nethttpd_services]
The request is only accepted if listed (for `Limit), or if not listed (for `Limit_except).
mime_message [Netmime]
Simple MIME message, in a form that is compatible with complex ones.
mime_message_ro [Netmime]
Read-only variant of simple messages
mime_scanner [Mimestring]
The opaque type of a scanner for structured values
minor_status [Netgssapi]
The minor status is provider-specific.
mkdir_flag [Netfs]
mode [Rpc]
mode2 [Rpc_server]
Determines the type of the server for create2:
mode2 [Rpc_client]
Determines the type of the client for create2:
model_constraint [Nethtml]
Model constraints define the possible sub elements of an element: `Inline: The sub elements must belong to the class `Inline, `Block: The sub elements must be members of the classes `Block or `Essential_block, `Flow: The sub elements must belong to the classes `Inline, `Block, or `Essential_block, `Empty: There are no sub elements, `Any: Any sub element is allowed, `Special: The element has special content (e.g. <script>). Functionally equivalent to `Empty, `Elements l: Only these enumerated elements may occur as sub elements, `Or(m1,m2): One of the constraints m1 or m2 must hold, `Except(m1,m2): The constraint m1 must hold, and m2 must not hold, `Sub_exclusions(l,m): The constraint m must hold; furthermore, the elements enumerated in list l are not allowed as direct or indirect subelements, even if m or the model of a subelement would allow them. The difference to `Except(m, `Elements l) is that the exclusion is inherited to the subelements. The `Sub_exclusions expression must be toplevel, i.e. it must not occur within an `Or, `Except, or another 'Sub_exclusions expression. Note that the members of the class `Everywhere are allowed everywhere, regardless of whether the model constraint allows them or not.
monitor [Uq_mt]
A thread monitor governs which threads have access to a set of engines running together on an event system
mountpoint [Netcgi_plex]
mset [Rpc_proxy.ManagedSet]
a managed set
mset_config [Rpc_proxy.ManagedSet]
mset_policy [Rpc_proxy.ManagedSet]
Sets in which order managed clients are picked from the services array passed to create_mset: `Failover: Picks an element from the first service in services that is enabled and has free capacity. That means that the first service is preferred until it is maxed out or it fails, then the second service is preferred, and so on., `Balance_load: Picks an element from the service in services that is enabled and has the lowest load.
multipart_style [Netmime]
How to parse multipart messages: `None: Do not handle multipart messages specially. Multipart bodies are not further decoded, and returned as `Body b where b is the transfer-encoded text representation., `Flat: If the top-level message is a multipart message, the parts are separated and returned as list. If the parts are again multipart messages, these inner multipart messages are not furher decoded and returned as `Body b., `Deep: Multipart messages are recursively decoded and returned as tree structure. This value determines how far the complex_mime_message structure is created for a parsed MIME message.
mutator [Netmcore_heap]
Mutators allow it to push new values onto the heap.
mutex [Netplex_mutex]
mutex [Netmcore_mutex]
mutex_type [Netmcore_mutex]
Types: `Normal mutexes have no checks for deadlocks., `Errorcheck mutexes check whether the process locks the mutex again, and fail in this case. Also, only the owning process can unlock a mutex., `Recursive mutexes allow that the owner locks several times. The same number of unlock requests need to be issued to give up the ownership

name [Netgssapi]
A name is also opaque, and the same rules apply as for credential.
named_mstring_factories [Xdr_mstring]
named_semaphore [Netsys_posix]
netscape_cookie [Nethttp]
These are old-style cookies, as introduced by Netscape.
node_type [Netsys_posix]
not_event [Netsys_posix]

oid [Netgssapi]
OIDs like "" as array of int's.
oid_set [Netgssapi]
A set of OID's.
onshutdown_in_spec [Uq_engines]
See class input_async_mplex for explanations
onshutdown_out_spec [Uq_engines]
See class output_async_mplex for explanations
operating_type [Netcgi1_compat.Netcgi]
operation [Unixqueue]
An operation specifies the condition to wait for.
other_url_spec [Netcgi1_compat.Netcgi_types]
other_url_spec [Netcgi]
Determines how an URL part is generated: `Env: Take the value from the environment., `This v: Use this value v. It must already be URL-encoded., `None: Do not include this part into the URL.
other_url_spec [Netcgi_common]
out_buffer [Uq_io]
Buffers that can be attached to a device to get buffered I/O
out_device [Uq_io]
Currently supported devices for output: `Polldescr(fd,esys): The poll system call is used with file descriptor fd to wait until data can be output. The event system esys is the underlying event queue. This works well for pipes, sockets etc. but not for normal files., `Multiplex mplex: The multiplex controller mplex is used as device. , `Buffer buf: Data is written to the buffer buf (which in turn is connected with a second device), `Count_out(f,d): Data is written to d, and every time a few bytes n are written the function f n is called (which may raise an exception) Generally, it is not well supported to write in parallel several times to the same device.
output_mode [Netcgi1_compat.Netcgi_env]
This is not used anywhere.
output_state [Nethttpd_types]
output_state [Netcgi1_compat.Netcgi_env]
This is not the business of the user.
output_type [Netcgi]
The ouput type determines how generated data is buffered.
output_type [Netcgi_common]

packed_value [Rpc_packer]
parallelization_type [Netplex_types]
Type of parallelization: `Multi_processing on a single host, `Multi_threading on a single host, `Controller_attached means that the service runs within the controller. This is (for now) only allowed for controller-internal services.
param_value [Netplex_types]
param_value_or_any [Netplex_types]
pattern [Netglob]
Input for Netglob.glob
pattern [Netaux.KMP]
peer [Http_client_conncache]
pg_spec [Netsys_posix]
pipe_mode [Netsys_win32]
pm_obj [Netsys_pmanage]
pmaplist [Rpc_portmapper_aux]
pmaplist_p [Rpc_portmapper_aux]
poll_act_events [Netsys_posix]
Poll events.
poll_array [Netsys_posix]
The array of poll_cell entries
poll_cell [Netsys_posix]
The poll cell refers to the descriptor poll_fd.
poll_req_events [Netsys_posix]
port [Ftp_client]
The port of the data connection: `Active means that the server initiates the data connection to the listening client, and in the case of `Passive the client initiates the data connection to the listening server.
posix_timer [Netsys_posix]
prefix [Netsys_sem]
A name starting with a slash.
private_api [Http_client]
The private part of the http_call class type
process [Shell_sys]
A process is the running instance of a command (a Unix process)
process_id [Netmcore]
This tagged integer identifies processes.
producer [Shell]
A producer generates data sent to a called process
profile [Netmech_scram]
protocol [Rpc]
protocol [Nethttp]
The base protocol.
protocol [Netcgi1_compat.Netcgi_env]
protocol_attribute [Nethttp]
protocol_attribute [Netcgi1_compat.Netcgi_env]
protocol_version [Nethttp]
protocol_version [Netcgi1_compat.Netcgi_env]
proxy_type [Http_client]
ptype [Netmech_scram]
Currently only the variant for `GSSAPI is supported

qop [Netgssapi]
Quality-of-proctection parameters are mechanism-specific
query_string_spec [Netcgi1_compat.Netcgi_types]
query_string_spec [Netcgi]
Determines how the query part of URLs is generated: `Env: The query string of the current request., `This l: The query string is created from the specified argument list l., `None: The query string is omitted., `Args: deprecated, use `This (left for backward compatibility).
query_string_spec [Netcgi_common]

r [Netplex_cenv.FUN_TYPE]
result type
r [Netplex_cenv.LEVER]
result type
rcache [Rpc_proxy.ReliabilityCache]
The cache
rcache_config [Rpc_proxy.ReliabilityCache]
rcache_policy [Rpc_proxy.ReliabilityCache]
How failures of individual ports are interpreted: `Independent: When a connection to a remote port repeatedly fails, only this port is disabled, `Failing_port_disables_host p: When a connection to the TCP port p repeatedly fails, the whole remote host is disabled. Other ports do not disable the host, but are treated as in `Independent., `Any_failing_port_disables_host: When a connection to any TCP port repeatedly fails, the whole remote host is disabled, `None: Nothing is disabled Note that the rcache_availability hook is not affected by the policy; this hook is called anyway.
read_file_flag [Netfs]
read_file_flag [Http_fs]
read_flag [Netfs]
read_flag [Http_fs]
read_policy [Netcgi_apache.Apache.Request]
Policy to apply by setup_client_block if the request message indicates a body.
readdir_flag [Netfs]
readlink_flag [Netfs]
regexp [Netstring_str]
The type of regular expressions
regexp [Netstring_pcre]
The type of regular expressions; now based on Pcre
reject_code [Rpc_client]
Reaction on authentication problems: `Fail: Stop here, and report to user, `Retry: Just try again with current session, `Renew: Drop the current session, and get a new session from the current auth_method, `Next: Try the next authentication method
remove_flag [Netfs]
rename_flag [Netfs]
reply [Ftp_client]
Reply code plus text
representation [Ftp_client]
The representation of the transferred file: `ASCII: An ASCII variant is used, i.e. the server sends files in ASCII encoding with CR/LF as end-of-line marker. Supported by all servers., `EBCDIC: An EBCDIC variant is used, i.e. the server sends files in EBCDIC encoding with NEL as end-of-line marker, `Image: The file is transferred in its original binary representation. Supported by all servers. "Local" representations are not supported.
representation [Netcgi1_compat.Netcgi_types]
Embedded in the single place of use.
representation [Netcgi_common]
req_flag [Netgssapi]
Flags for the init_sec_context method
req_token [Nethttpd_kernel]
A req_token represents a textual part of the received request: `Req_header is the full received header. Together with the header, the corresponding http_response object is returned which must be used to transmit the response., `Req_expect_100_continue is generated when the client expects that the server sends a "100 Continue" response (or a final status code) now. One should add `Resp_info_line resp_100_continue to the send queue if the header is acceptable, or otherwise generate an error response. In any case, the rest of the request must be read until `Req_end., `Req_body is a part of the request body. The transfer-coding, if any, is already decoded., `Req_trailer is the received trailer, `Req_end indicates the end of the request (the next request may begin immediately)., `Eof indicates the end of the stream, `Bad_request_error indicates that the request violated the HTTP protocol in a serious way and cannot be decoded. It is required to send a "400 Bad Request" response. The following token will be `Eof., `Fatal_error indicates that the connection crashed. The following token will be `Eof., `Timeout means that nothing has been received for a certain amount of time, and the protocol is in a state that the next request can begin. The following token will be `Eof. Note that it is always allowed to send tokens to the client.
request_line [Nethttpd_kernel]
The method (including the URI), and the HTTP version
request_method [Netcgi1_compat.Netcgi_types]
request_method [Netcgi_common]
res_id [Netmcore]
This tagged integer identifies resources.
resolver [Http_client]
A name resolver is a function r called as r esys name reply.
resp_state [Nethttpd_kernel]
The response state: `Inhibited = it is not yet allowed to start the response, `Queued = the response waits on the queue for activation, `Active = the response is currently being transmitted, `Processed = the response has been completely sent, `Error = an error occurred during the transmission of this response, `Dropped = an earlier response forced to close the connection, and this response is dequeued
resp_token [Nethttpd_kernel]
The resp_token represents a textual part of the response to send: `Resp_info_line is an informational status line (code=100..199). There can be several informational lines, and they can be accompanied with their own headers. Such lines are only sent to HTTP/1.1 clients., `Resp_status_line is the final status line to send (code >= 200), `Resp_header is the whole response header to send, `Resp_body is the next part of the response body to send., `Resp_trailer is the whole response trailer to send (currently ignored), `Resp_action is special because it does not directly represent a token to send. The argument is a function which is called when the token is the next token on the active event queue. The function is also called when the event queue is dropped because of an error (the state of the response object indicates this). The function must not raise exceptions except Unix_error, and it must not block.
response_body_storage [Http_client]
How to create the response body: `Memory: The response body is in-memory, `File f: The response body is stored into the file whose name is returned by f(), `Body f: The response body is stored into the object returned by f(), `Device f: The response is directly forwarded to the device obtained by f() (new since Ocamlnet-3.3) When the function f is called in the latter cases the response header has already been received, and can be retrieved with the response_header method of the call object.
result [Rpc_transport]
result [Netstring_str]
The type of matching results
result [Netstring_pcre]
result [Netcgi_apache.Handler]
result_eof [Rpc_transport]
ret_flag [Netgssapi]
Flags for the accept_sec_context method
rmdir_flag [Netfs]
routine_error [Netgssapi]
Possible errors caused by the provider
rule [Rpc_server]
runner [Uq_tcl]
runner [Uq_gtk]

s [Netplex_cenv.FUN_TYPE]
argument type
s [Netplex_cenv.LEVER]
argument type
s_extended_token [Mimestring]
An opaque type containing the information of s_token plus: where the token occurs, RFC-2047 access functions
s_option [Mimestring]
s_param [Mimestring]
The type of encoded parameters (RFC 2231)
s_token [Mimestring]
A token may be one of: QString s: The quoted string s, i.e a string between double quotes. Quoted pairs are already decoded in s., Control c: The control character c (0-31, 127, 128-255), Special c: The special character c, i.e. a character from the specials list, DomainLiteral s: The bracketed string s, i.e. a string between brackets. Quoted pairs are already decoded in s., Comment: A string between parentheses. This kind of token is only generated when the option Return_comments is in effect., EncodedWord((charset,lang),encoding,encoded_word): An RFC-2047 style encoded word: charset is the name of the character set; lang is the language specifier (from RFC 2231) or ""; encoding is either "Q" or "B"; and encoded_word is the word encoded in charset and encoding. This kind of token is only generated when the option Recognize_encoded_words is in effect (if not, Atom is generated instead)., Atom s: A string which is neither quoted not bracketed nor written in RFC 2047 notation, and which is not a control or special character, i.e. the "rest", End: The end of the string
sarray [Netmcore_array]
Arrays where the elements have type 'e and the header has type 'h
sarray2 [Netmcore_matrix]
Arrays where the elements have type 'e and the header has type 'h
sarray2_descr [Netmcore_matrix]
The marshallable descriptor of a shared matrix
sarray_descr [Netmcore_array]
The marshallable descriptor of a shared array
sem_kind [Netsys_posix]
sem_open_flag [Netsys_sem]
sem_open_flag [Netsys_posix]
sem_wait_behavior [Netsys_sem]
sem_wait_behavior [Netsys_posix]
semaphore [Netsys_posix]
semaphore [Netmcore_sem]
serial [Netlog.Debug]
A serial number for the optional tracking of ownership
server_error [Rpc]
server_error [Netmech_scram]
Error codes of this protocol
server_session [Netmech_scram]
Session context for servers
service_factory [Nethttpd_plex]
The service factory function is called when a service configuration section of a certain type needs to be read.
session [Rpc_server]
identifies a pair of a call and a reply
shm_descr [Netshm]
A shared memory descriptor refers to a shared memory object.
shm_name [Netshm]
A shm_name is a name for a shared memory object.
shm_open_flag [Netsys_posix]
shm_open_flag [Netsys]
shm_table [Netshm]
shm_type [Netshm]
sig_action [Netsys_posix]
simplified_dtd [Nethtml]
A simplified_dtd is an associative list of tuples (element_name, (element_class, constraint)): For every element_name it is declared that it is a member of element_class, and that the sub elements must satisfy constraint.
size_flag [Netfs]
sockaddr [Rpc_transport]
socket_state [Netplex_types]
The state of a socket: `Enabled: The controller allows containers to accept connections. Note that this does not necessarily means that there such containers., `Disabled: It is not allowed to accept new connections. The socket is kept open, however., `Restarting b: The containers are being restarted. The boolean argument says whether the socket will be enabled after that., `Down: The socket is down/closed
sockspec [Uq_engines]
Extended names for socket addresses.
socksymbol [Netsockaddr]
Symbolic socket names:
specific_keys [Netmech_scram]
The specific keys to use
split_result [Netstring_str]
split_result [Netstring_pcre]
Here we keep compatiblity with Pcre
squeue [Netmcore_queue]
Queues where the elements have type 'e and the header has type 'h
squeue_descr [Netmcore_queue]
The marshallble descriptor of queues
sref [Netmcore_ref]
sref_descr [Netmcore_ref]
The marshallable descriptor of a reference
ssl_socket_state [Uq_ssl]
state [Rpc_proxy.ManagedClient]
The state: `Down: The initial state, and also reached after a socket error, or after one of the shutdown functions is called. Although `Down, there might still some cleanup to do. When RPC functions are called, the client is automatically revived., `Connecting: This state is used while the initial ping is done. It does not reflect whether the client is really TCP-connected. Without initial ping, this state cannot occur., `Up s: The client is (so far known) up and can be used. s is the socket address of the local socket
state [Netpop]
status [Http_client]
Condensed status information of a HTTP call: `Unserved: The call has not yet been finished, `HTTP_protocol_error e: An error on HTTP level occurred. Corresponds to the exception Http_protocol., `Successful: The call is successful, and the response code is between 200 and 299., `Redirection: The call is successful, and the response code is between 300 and 399., `Client_error: The call failed with a response code between 400 and 499., `Server_error: The call failed for any other reason.
status [Netcgi1_compat.Netcgi_types]
status_line [Nethttpd_kernel]
= (code, phrase)
std_activation [Nethttpd_services]
The way the Netcgi_types.cgi_activation object is created.
std_activation_options [Nethttpd_services]
These are options for `Std_activation.
store [Netmime]
Specifies where to store the body of a mail message.
store [Netcgi1_compat.Netcgi_types]
Embedded in the single place of use.
store [Netcgi_common]
string_like [Uq_io]
The user can pass data buffers that base either on strings or on bigarrays of char (memory).
structure [Ftp_client]
The client supports two structures: `File_structure: Files are simply contiguous streams of bytes, `Record_structure: Files are sequences of records. FTP does not make a difference between variable and fixed length records. It is not forbidden that the records are themselves structured into lines, in fact it can happen that end-of-line markers are contained in binary records. Operating systems that support record-structured files often store text files in this format, i.e. every line is stored in its own record, without end-of-line marker. If record structure is selected by a STRU command, it is recommended to use the classes Ftp_data_endpoint.out_record_channel and Ftp_data_endpoint.in_record_channel for the local representation of the files, otherwise the records may be incorrectly mapped to the local conventions. Page-structured files (i.e.
suppl_status [Netgssapi]
Further flags
support_level [Rpc_auth_gssapi]
symlink_flag [Netfs]
synchronization [Http_client]
This type determines whether to keep requests and responses synchronized or not.
syslog_facility [Netsys_posix]
The facilities.
syslog_option [Netsys_posix]
The syslog options: `Cons: Fall back to console logging if syslog is unavailable, `Ndelay: Open the connection immediately, `Odelay: Open the connection at the first call syslog (default), `Nowait: Do not wait until it is ensured that the message is sent, `Pid: Log the PID with every message

t [Rpc_server]
represents a server for an RPC program
t [Rpc_portmapper]
represents a client for the portmapper
t [Rpc_portmapper_clnt.PMAP.V2]
t [Rpc_portmapper_clnt.Make'PMAP.V2]
t [Rpc_simple_client]
The type of simple clients
t [Rpc_client.USE_CLIENT]
The client type
t [Rpc_client]
The type of RPC clients
t [Rpc_program]
Type of RPC programs
t [Rpc_key_service]
represents a client of the keyserv daemon
t [Netpagebuffer]
t [Nethttp.Cookie]
Functions to manipulate cookies.
t [Netdate]
t [Netbuffer]
t [Netaddress]
The union of mailbox and group
t [Netshm_array]
t [Netshm_hashtbl]
t [Netplex_encap.TYPE]
t [Netplex_encap.ENCAP]
t [Netplex_cenv.TYPE]
t [Netplex_cenv.LEVER]
t [Netplex_cenv.VAR_TYPE]
t [Netmcore_hashtbl]
The type of hash tables from type 'a to type 'b and a header of type 'h
t [Netcgi.Cookie]
Mutable cookie type.
t [Netcgi_common.Cookie]
t [Netcgi_apache.Handler]
The type of handler functions.
t [Netcgi_apache.Apache.Request]
Apache request_rec structure.
t [Netcgi_apache.Apache.Connection]
Apache conn_rec structure.
t [Netcgi_apache.Apache.Server]
Apache server_rec structure.
t [Netcgi_apache.Apache.Table]
Apache table structure.
t [Equeue]
This is the type of an event system with events of type 'a
t_PMAP'V2'pmapproc_callit'arg [Rpc_portmapper_aux]
t_PMAP'V2'pmapproc_callit'res [Rpc_portmapper_aux]
t_PMAP'V2'pmapproc_dump'arg [Rpc_portmapper_aux]
t_PMAP'V2'pmapproc_dump'res [Rpc_portmapper_aux]
t_PMAP'V2'pmapproc_getport'arg [Rpc_portmapper_aux]
t_PMAP'V2'pmapproc_getport'res [Rpc_portmapper_aux]
t_PMAP'V2'pmapproc_null'arg [Rpc_portmapper_aux]
t_PMAP'V2'pmapproc_null'res [Rpc_portmapper_aux]
t_PMAP'V2'pmapproc_set'arg [Rpc_portmapper_aux]
t_PMAP'V2'pmapproc_set'res [Rpc_portmapper_aux]
t_PMAP'V2'pmapproc_unset'arg [Rpc_portmapper_aux]
t_PMAP'V2'pmapproc_unset'res [Rpc_portmapper_aux]
t_descr [Netmcore_hashtbl]
The marshallable descriptor of a shared hash table
table_row [Netcgi_modtpl]
telnet_command [Telnet_client]
A telnet_command is the interpretation of the octets in a Telnet session, i.e.
telnet_connector [Telnet_client]
Connectors: Telnet_connect(host,port): The client connects to this port., Telnet_socket s: The client uses an already connected socket. Why Telnet_socket? Telnet is a symmetrical protocol; client and servers implement the same protocol features (the only difference is the environment: a client is typically connected with a real terminal; a server is connected with a pseudo terminal).
telnet_negotiated_option [Telnet_client]
telnet_negotiated_option: names for the most common options, and the generic name Telnet_option for other options.
telnet_option_state [Telnet_client]
An option has one of three states: Not_negotiated: There was no negotiation about the option. This means that the option is turned off (but this client is allowed to reject it explicitly), Accepted: Both sides have accepted the option., Rejected: One side has rejected the option. This also means that the option is off, but the client refuses to send further acknoledgements that the option is off (to avoid endless negotiation loops).
telnet_options [Telnet_client]
telnet_options: modifies the behaviour of the client.
test_flag [Netfs]
test_type [Netfs]
Tests: `N: the file name exists, `E: the file exists, `D: the file exists and is a directory, `F: the file exists and is regular, `H: the file exists and is a symlink (possibly to a non-existing target), `R: the file exists and is readable, `W: the file exists and is writable, `X: the file exists and is executable, `S: the file exists and is non-empty
text_data_repr [Ftp_data_endpoint]
Possible representation of text data: `ASCII means an ASCII-compatible encoding where the newline character is represented by CR/LF.
thread_sys_id [Netplex_types]
A system-specific identifier of the thread/process
timer [Netplex_cenv]
A timer
timer_expiration [Netsys_posix]
timespec [Netsys_posix]
(t,t_nanos): Specifies a time by a base time t to which the nanoseconds t_nanos are added.
token [Netgssapi]
Authentication tokens.
transfer_coding [Nethttpd_kernel]
transmission_mode [Ftp_client]
The transmission mode selects how the data are encoded in the data connection.
transmission_mode [Ftp_data_endpoint]
The transmission mode as described in RFC 959.

uint4 [Rtypes]
32 bit unsigned integer
uint4 [Netnumber]
32 bit unsigned integer
uint8 [Rtypes]
64 bit unsigned integer
uint8 [Netnumber]
64 bit unsigned integer
unicode_lexbuf [Netulex.ULB]
uri_distributor [Nethttpd_services]
Describes that services are bound to URI prefixes.
url [Neturl]
Values of type url describe concrete URLs.
url_syntax [Neturl]
Values of type url_syntax describe which components of an URL are recognized, which are allowed (and optional), and which are required.
url_syntax_option [Neturl]
user_name_format [Rpc_auth_gssapi]
What to return as user name: `Exported_name: the exported name in binary format (as described in RFC 2078, section 3.2). This format can only be read back by the gss_api object generating the name., `Prefixed_name: the display name in a text format "{<oid>}<namestring>"., `Plain_name: the string part of the display name
user_name_format [Rpc_auth_sys]
How Rpc_server.get_user returns the user as string: `Full: The format includes all transmitted details: "<uid>.<gid>.<gid1>.<gid2>...@<hostname>". All user and group IDs are numeric. The first two numbers, <uid> and <gid> are always present. The other numbers are the supplementary group IDs and can be omitted. The <hostname> is the name passed in the credentials., `UID: The string is the numeric user ID, `Custom f: The string is returned by the function f. The arguments are uid, gid, the array of the supplementary group IDs and the hostname.
user_name_interpretation [Rpc_auth_gssapi]

valid_glob_expr [Netglob]
A validated glob_expr
var [Netcgi_modtpl]
verbosity [Rpc_util]
How verbose the RPC ftrace is: `Name_only: For each RPC call only the name is logged, `Name_abbrev_args: The name and the abbreviated argument list are logged, `Name_full_args: The name and the full argument list are logged

w32_console_attr [Netsys_win32]
w32_console_info [Netsys_win32]
w32_console_mode [Netsys_win32]
See the msdn docs for GetConsoleMode for details
w32_event [Netsys_win32]
w32_input_thread [Netsys_win32]
w32_object [Netsys_win32]
w32_output_thread [Netsys_win32]
w32_pipe [Netsys_win32]
A pipe endpoint
w32_pipe_server [Netsys_win32]
A pipe server.
w32_process [Netsys_win32]
A handle to spawned processes
wait_entry [Netmcore_condition]
Each process that wants to wait needs a wait_entry.
wait_entry_e [Netmcore_condition]
A special kind of wait_entry for intergration into an event loop
wait_id [Unixqueue]
A wait identifier is used to distinguish between several timers, see type operation.
wait_set [Netmcore_condition]
A set of wait_entry, for easier management.
watched_subprocess [Netsys_posix]
wd_spec [Netsys_posix]
workaround [Netcgi1_compat.Netcgi_env]
The Work_around_ part has been dropped as it is clear at the spot of use.
write_common [Netfs]
The intersection of write_flag and write_file_flag
write_file_flag [Netfs]
write_file_flag [Http_fs]
write_flag [Netfs]
write_flag [Http_fs]
write_op [Netshm]

xdr_type [Xdr]
This is the validated version of xdr_type_term.
xdr_type_system [Xdr]
A validated type system.
xdr_type_term [Xdr]
xdr_type_term_system [Xdr]
Bind names to types.
xdr_value [Xdr]
xdr_value_version [Xdr]
Selects which version of xdr_value is returned by unpack_xdr_value.
xmap_value [Nethtml]
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