ct_pr_status_get_param(3CONTRACT) Contract Management Library Functions ct_pr_status_get_param(3CONTRACT)
NAME
ct_pr_status_get_param, ct_pr_status_get_fatal, ct_pr_status_get_members, ct_pr_status_get_contracts - process contract status functions
SYNOPSIS
cc [ flag... ] file... -D_LARGEFILE64_SOURCE -lcontract [ library... ]
#include <libcontract.h>
#include <sys/contract/process.h>
int ct_pr_status_get_param(ct_stathdl_t stathdl, uint_t *paramp);
int ct_pr_status_get_fatal(ct_stathdl_t stathdl, uint_t *eventsp);
int ct_pr_status_get_members(ct_stathdl_t stathdl, pid_t **pidpp, uint_t *n);
int ct_pr_status_get_contracts(ct_stathdl_t stathdl, ctid_t **idpp, uint_t *n);
DESCRIPTION
These functions read process contract status information from a status object returned by ct_status_read(3CONTRACT).
The ct_pr_status_get_param() function reads the parameter set term. The value is a collection of bits as described in process(4).
The ct_pr_status_get_fatal() function reads the fatal event set term. The value is a collection of bits as described in process(4).
The ct_pr_status_get_members() function obtains a list of the process IDs of the members of the process contract. A pointer to an array of
process IDs is stored in *pidpp. The number of elements in this array is stored in *n. These data are freed when the status object is freed
by a call to ct_status_free(3CONTRACT).
The ct_pr_status_get_contracts() function obtains a list of IDs of contracts that have been inherited by the contract. A pointer to an
array of IDs is stored in *idpp. The number of elements in this array is stored in *n. These data are freed when the status object is freed
by a call to ct_status_free().
RETURN VALUES
Upon successful completion, ct_pr_status_get_param(), ct_pr_status_get_fatal(), ct_pr_status_get_members(), and ct_pr_status_get_con-
tracts() return 0. Otherwise, they return a non-zero error value.
ERRORS
The ct_pr_status_get_param(), ct_pr_status_get_fatal(), ct_pr_status_get_members(), and ct_pr_status_get_contracts() functions will fail
if:
EINVAL The stathdl argument is not a process contract status object.
The ct_pr_status_get_param(), ct_pr_status_get_fatal(), ct_pr_status_get_members(), and ct_r_status_get_contracts() functions will fail if:
ENOENT The requested data were not available in the status object.
EXAMPLES
Example 1: Print members of process contract 1.
Open the status file for contract 1, read the contract's status, obtain the list of processes, print them, and free the status object.
#include <sys/types.h>
#include <fcntl.h>
#include <libcontract.h>
#include <stdio.h>
...
int fd;
uint_t i, n;
pid_t *procs;
ct_stathdl_t st;
fd = open("/system/contract/process/1/status");
ct_status_read(fd, &st);
ct_pr_status_get_members(st, &procs, &n);
for (i = 0 ; i < n; i++)
printf("%ld
", (long)procs[i]);
ct_status_free(stat);
close(fd);
...
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Evolving |
+-----------------------------+-----------------------------+
|MT-Level |Safe |
+-----------------------------+-----------------------------+
SEE ALSO
ct_status_free(3CONTRACT), ct_status_read(3CONTRACT), libcontract(3LIB), contract(4), process(4), attributes(5), lfcompile(5)
SunOS 5.10 1 Apr 2004 ct_pr_status_get_param(3CONTRACT)