ct_status_read man page on SmartOS

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CT_STATUS_READ(3CONTRACT)			     CT_STATUS_READ(3CONTRACT)

NAME
       ct_status_read, ct_status_free, ct_status_get_id, ct_status_get_zoneid,
       ct_status_get_type, ct_status_get_state, ct_status_get_holder,  ct_sta‐
       tus_get_nevents,	  ct_status_get_ntime,	 ct_status_get_qtime,  ct_sta‐
       tus_get_nevid, ct_status_get_cookie, ct_status_get_informative, ct_sta‐
       tus_get_critical - common contract status functions

SYNOPSIS
       cc [ flag... ] file... -D_LARGEFILE64_SOURCE  -lcontract	 [ library... ]
       #include <libcontract.h>

       int ct_status_read(int fd, int detail, ct_stathdl_t *stathdlp);

       void ct_status_free(ct_stathdl_t stathdl);

       ctid_t ct_status_get_id(ct_stathdl_t stathdl);

       zoneid_t ct_status_get_zoneid(ct_stathdl_t stathdl);

       char *ct_status_get_type(ct_stathdl_t stathdl);

       uint_t ct_status_get_state(ct_stathdl_t stathdl);

       pid_t ct_status_get_holder(ct_stathdl_t stathdl);

       int ct_status_get_nevents(ct_stathdl_t stathdl);

       int ct_status_get_ntime(ct_stathdl_t stathdl);

       int ct_status_get_qtime(ct_stathdl_t stathdl);

       ctevid_t ct_status_get_nevid(ct_stathdl_t stathdl);

       uint64_t ct_status_get_cookie(ct_stathdl_t stathdl);

       ctevid_t ct_status_get_informative(ct_stathdl_t stathdl);

       uint_t ct_status_get_critical(ct_stathdl_t stathdl);

DESCRIPTION
       These  functions	 operate  on contract status file descriptors obtained
       from the contract(4) file system and status object handles returned  by
       ct_status_read().

       The  ct_status_read() function reads the contract's status and initial‐
       izes the status object handle pointed to by stathdlp. After a  success‐
       ful  call  to  ct_status_read(),	 the caller is responsible for calling
       ct_status_free() on this status object  handle  when  it	 has  finished
       using  it.  Because  the amount of information available for a contract
       might be large, the detail argument allows the caller  to  specify  how
       much  information ct_status_read() should obtain. A value of CTD_COMMON
       fetches only those data accessible by  the  functions  on  this	manual
       page.  CTD_FIXED fetches CTD_COMMON data as well as fixed-size contract
       type-specific data. CTD_ALL fetches CTD_FIXED data as well as  variable
       lengthed	 data, such as arrays. See the manual pages for contract type-
       specific status accessor functions  for	information  concerning	 which
       data are fetched by CTD_FIXED and CTD_ALL.

       The  ct_status_free()  function	frees  any storage associated with the
       specified status object handle.

       The remaining functions all return contract information obtained from a
       status object.

       The ct_status_get_id() function returns the contract's ID.

       The  ct_status_get_zoneid()  function  returns the contract's creator's
       zone ID, or −1 if the creator's zone no longer exists.

       The ct_status_get_type() function  returns  the	contract's  type.  The
       string should be neither modified nor freed.

       The  ct_status_get_state()  function returns the state of the contract.
       Valid state values are:

       CTS_OWNED
			a contract that is currently owned by a process

       CTS_INHERITED
			a contract that has been inherited by a regent process
			contract

       CTS_ORPHAN
			a  contract  that has no owner and has not been inher‐
			ited

       CTS_DEAD
			a contract that is no longer in	 effect	 and  will  be
			automatically  removed	from the system as soon as the
			last reference to it is release (for example, an  open
			status file descriptor)

       The  ct_status_get_holder() function returns the process ID of the con‐
       tract's owner if the contract is in the CTS_OWNED state, or the	ID  of
       the  regent  process  contract  if the contract is in the CTS_INHERITED
       state.

       The ct_status_get_nevents() function returns the number	of  unacknowl‐
       edged critical events on the contract's event queue.

       The ct_status_get_ntime() function returns the amount of time remaining
       (in seconds) before the ongoing exit negotiation times out,  or	-1  if
       there is no negotiation ongoing.

       The ct_status_get_qtime() function returns the amount of time remaining
       (in seconds) in the quantum before the ongoing exit  negotiation	 times
       out, or -1 if there is no negotiation ongoing.

       The  ct_status_get_nevid() function returns the event ID of the ongoing
       negotiation, or 0 if there are none.

       The ct_status_get_cookie() function returns the cookie term of the con‐
       tract.

       The  ct_status_get_critical()  function	is  used  to read the critical
       event set term. The value is a collection of bits as described  in  the
       contract type's manual page.

       The  ct_status_get_informative()	 function is used to read the informa‐
       tive event set term. The value is a collection of bits as described  in
       the contract type's manual page.

RETURN VALUES
       Upon  successful	 completion, ct_status_read() returns 0. Otherwise, it
       returns a non-zero error value.

       Upon successful completion,  ct_status_get_id(),	 ct_status_get_type(),
       ct_status_get_holder(), ct_status_get_state(), ct_status_get_nevents(),
       ct_status_get_ntime(),  ct_status_get_qtime(),	ct_status_get_nevid(),
       ct_status_get_cookie(),	   ct_status_get_critical(),	and    ct_sta‐
       tus_get_informative() return the data described in the DESCRIPTION.

ERRORS
       The ct_status_read() function will fail if:

       EINVAL
		 The detail level specified is invalid.

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

       ┌────────────────────┬─────────────────┐
       │  ATTRIBUTE TYPE    │ ATTRIBUTE VALUE │
       ├────────────────────┼─────────────────┤
       │Interface Stability │ Evolving	      │
       ├────────────────────┼─────────────────┤
       │MT-Level	    │ Safe	      │
       └────────────────────┴─────────────────┘

SEE ALSO
       libcontract(3LIB), contract(4), attributes(5), lfcompile(5)

				  Apr 1, 2004	     CT_STATUS_READ(3CONTRACT)
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