Name | Synopsis | Description | Return Values | Errors | Examples | Attributes | See Also
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);
int ct_pr_status_get_svc_fmri(ct_stathdl_t stathdl, char **fmri);
int ct_pr_status_get_svc_aux(ct_stathdl_t stathdl, char **aux);
int ct_pr_status_get_svc_ctid(ct_stathdl_t stathdl, ctid_t *ctid);
int ct_pr_status_get_svc_creator(ct_stathdl_t stathdl, char **creator);
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().
The ct_pr_status_get_svc_fmri(), ct_pr_status_get_svc_creator(), and ct_pr_status_get_svc_aux() functions read, respectively, the service FMRI, the contract's creator execname and the creator's auxiliary field. The buffer pointed to by fmri, aux or creator, is freed by a call to ct_status_free() and should not be modified.
The ct_pr_status_get_svc_ctid() function reads the process contract id for which the service FMRI was first set.
Upon successful completion, ct_pr_status_get_param(), ct_pr_status_get_fatal(), ct_pr_status_get_members(), ct_pr_status_get_contracts(), ct_pr_status_get_svc_fmri(), ct_pr_status_get_svc_creator(), ct_pr_status_get_svc_aux(), and ct_pr_status_get_svc_ctid() return 0. Otherwise, they return a non-zero error value.
The ct_pr_status_get_param(), ct_pr_status_get_fatal(), ct_pr_status_get_members(), ct_pr_status_get_contracts(), ct_pr_status_get_svc_fmri(), ct_pr_status_get_svc_creator(), ct_pr_status_get_svc_aux(), and ct_pr_status_get_svc_ctid() functions will fail if:
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(), ct_r_status_get_contracts(), ct_pr_status_get_svc_fmri(), ct_pr_status_get_svc_creator(), ct_pr_status_get_svc_aux(), and ct_pr_status_get_svc_ctid() functions will fail if:
The requested data were not available in the status object.
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\n", (long)procs[i]); ct_status_free(stat); close(fd); ...
See attributes(5) for descriptions of the following attributes:
ATTRIBUTE TYPE |
ATTRIBUTE VALUE |
---|---|
Interface Stability |
Committed |
MT-Level |
Safe |
ct_status_free(3CONTRACT), ct_status_read(3CONTRACT), libcontract(3LIB), contract(4), process(4), attributes(5), lfcompile(5)
Name | Synopsis | Description | Return Values | Errors | Examples | Attributes | See Also