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ctrun (1)
  • >> ctrun (1) ( Solaris man: Команды и прикладные программы пользовательского уровня )
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    NAME

    ctrun - execute command in a process contract
     
    

    SYNOPSIS

    /usr/bin/ctrun [options] command [ argument]...
    

     

    DESCRIPTION

    The ctrun utility starts a command in a newly created process contract. ctrun holds the contract and can be instructed to output or respond to events that occur within the contract.

    For additional information about process contracts, see contract(4) and process(4).  

    OPTIONS

    The following options are supported:

    -A fmri aux

    Sets the process contract creator's auxiliary field.

    -i event,[event ...]
    -f event,[event ...]

    Sets the informative and fatal events, respectively.

    The following are valid events:

    core

    A member process dumped core.

    core events are informative by default.

    empty

    The last member of the process contract exited.

    exit

    A member process exited.

    fork

    A process was added to the process contract.

    hwerr

    A member process encountered a hardware error.

    hwerr events are fatal by default.

    signal

    A member process received a fatal signal from a process in a different process contract.

    Only core, hwerr, and signal events can be made fatal.

    More events can be delivered than requested if ctrun requires them for its own purposes. For example, empty messages are always requested if a lifetime of contract is specified. See -l.

    -F fmri

    Sets the process contract service FMRI field. To set this field the caller is required to have the {PRIV_CONTRACT_IDENTITY} in its effective set.

    -l lifetime

    The following valid lifetime values are supported:

    child

    ctrun exits when the command exits, regardless of whether the contract is empty.

    contract

    ctrun exits only when the contract exits. This is the default.

    none

    ctrun exits immediately, orphaning the contract.

    -o option,[option ...]

    The following options are supported:

    noorphan

    Kills all processes in the contract if the holder (ctrun) exits.

    This option is invalid when a lifetime of none is specified.

    pgrponly

    If a fatal error occurs, kills at most the process group of which the errant process is a member.

    regent

    The contract inherits inheritable contracts when abandoned by member processes.

    -r count

    If the contract encounters a fault, this option attempts to restart the command count times. If count is 0, the attempt to restart continues indefinitely. By default, ctrun does not attempt to restart the command.

    This option is invalid if a lifetime other than contract is specified or if the pgrponly option is used.

    -t

    If the contract created by ctrun inherited subcontracts from its member processes, attempts to transfer them to the new contract when restarting.

    This option is invalid unless -r is also specified.

    -v

    Displays contract events and ctrun actions as they occur.

    -V

    Displays verbose contract events, as are displayed by the -v option of ctwatch. Implies -v.

     

    OPERANDS

    The following operands are supported:

    argument

    One of the strings treated as an argument to command.

    command

    The command to be passed to execvp(2). See exec(2).

     

    EXAMPLES

    Example 1 Running a Shell in a New Process Contract

    The following example runs a shell in a new process contract:

    example% ctrun -l child -o pgrponly ksh
    

    The -l child option argument is specified so that ctrun won't wait until all children of the shell have exited. -o pgrponly is specified because an interactive ksh puts each job in a new process group, and an error in one job is unlikely to affect the others.

    Example 2 Running a Simple Server

    The following example runs a simple server:

    example% ctrun -r 0 -t -f hwerr,core,signal server
    

    The -r 0 and -t options are specified to indicate that if the server encounters a fatal error, ctrun should try to restart it. The -f option makes "hwerr", "core", and "signal" fatal events.

     

    EXIT STATUS

    If command is specified and successfully invoked (see exec(2)), the exit status of ctrun is the exit status of command. Otherwise, ctrun exits with one of the following values:

    123

    The child process exited abnormally.

    124

    ctrun encountered an internal error.

    125

    Invalid arguments were provided to ctrun.

    126

    command was found but could not be invoked.

    127

    command could not be found.

     

    FILES

    /system/contract/process/*


     

     

    ATTRIBUTES

    See attributes(5) for descriptions of the following attributes:

    ATTRIBUTE TYPEATTRIBUTE VALUE

    AvailabilitySUNWcsu

    Interface Stability

    Human Readable Output is Uncommitted. Invocation is Committed.  

    SEE ALSO

    ctstat(1), ctwatch(1), exec(2), contract(4), process(4), attributes(5)


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    OPTIONS
    OPERANDS
    EXAMPLES
    EXIT STATUS
    FILES
    ATTRIBUTES
    SEE ALSO


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