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'\" te .\" Copyright (c) 2007, Oracle and/or its affiliates. All rights reserved. .TH ct_dev_status_get_dev_state 3CONTRACT "9 Aug 2007" "Oracle Solaris 11.4" "Contract Management Library Functions" .SH NAME ct_dev_status_get_dev_state, ct_dev_status_get_aset, ct_dev_status_get_minor, ct_dev_status_get_noneg \- read contract status information from a status object .SH SYNOPSIS .LP .nf cc [ \fIflag\fR... ] \fIfile\fR... \fB-D_LARGEFILE64_SOURCE\fR \fB-lcontract\fR [ \fIlibrary\fR... ] #include <libcontract.h> #include <sys/contract/device.h> \fBint\fR \fBct_dev_status_get_dev_state\fR(\fBct_stathdl_t\fR \fIstathdl\fR, \fBuint_t *\fR\fIstatep\fR); .fi .LP .nf \fBint\fR \fBct_dev_status_get_aset\fR(\fBct_stathdl_t\fR \fIstathdl\fR, \fBuint_t *\fR\fIasetp\fR); .fi .LP .nf \fBint\fR \fBct_dev_status_get_minor\fR(\fBct_stathdl_t\fR \fIstathdl\fR, \fBchar *\fR\fIbuf\fR, \fBsize_t *\fR\fIbuflenp\fR); .fi .LP .nf \fBint\fR \fBct_dev_status_get_noneg\fR(\fBct_stathdl_t\fR \fIstathdl\fR, \fBuint_t *\fR\fInonegp\fR); .fi .SH PARAMETERS .sp .ne 2 .mk .na \fB\fIasetp\fR\fR .ad .RS 11n .rt a pointer to a \fBuint_t\fR variable for receiving the acceptable state set (such as A-set) for the contract .RE .sp .ne 2 .mk .na \fB\fIbuf\fR\fR .ad .RS 11n .rt a buffer for receiving the \fBdevfs\fR path of a minor in a contract .RE .sp .ne 2 .mk .na \fB\fIbuflenp\fR\fR .ad .RS 11n .rt a pointer to a variable of type \fBsize_t\fR for passing the size of the buffer \fIbuf\fR. If the buffer is too small (< \fBPATH_MAX\fR), the minimum size of the buffer needed (\fBPATH_MAX\fR) is passed back to the caller with this argument. .RE .sp .ne 2 .mk .na \fB\fInonegp\fR\fR .ad .RS 11n .rt a pointer to a \fBuint_t\fR variable for receiving the setting of the "noneg" term .RE .sp .ne 2 .mk .na \fB\fIstathdl\fR\fR .ad .RS 11n .rt a status object returned by \fBct_status_read\fR(3CONTRACT) .RE .sp .ne 2 .mk .na \fB\fIstatep\fR\fR .ad .RS 11n .rt a pointer to a \fBuint_t\fR variable for receiving the current state of the device which is the subject of the contract .RE .SH DESCRIPTION .sp .LP These functions read contract status information from a status object \fIstathdl\fR returned by \fBct_status_read()\fR. The detail level in the call to \fBct_status_read()\fR needs to be at least \fBCTD_FIXED\fR for the following calls to be successful. The one exception is \fBct_dev_status_get_minor()\fR, which requires a detail level of \fBCTD_ALL\fR. .sp .LP The \fBct_dev_status_get_dev_state()\fR function returns the current state of the device which is the subject of the contract. This can be one of the following: .sp .ne 2 .mk .na \fB\fBCT_DEV_EV_ONLINE\fR\fR .ad .RS 22n .rt The device is online and functioning normally. .RE .sp .ne 2 .mk .na \fB\fBCT_DEV_EV_DEGRADED\fR\fR .ad .RS 22n .rt The device is online but degraded. .RE .sp .ne 2 .mk .na \fB\fBCT_DEV_EV_OFFLINE\fR\fR .ad .RS 22n .rt The device is offline and not configured. .RE .sp .LP The \fBct_dev_status_get_aset()\fR function returns the A-set of the contract. This can be the bitset of one or more of the following states: \fBCT_DEV_EV_ONLINE\fR, \fBCT_DEV_EV_DEGRADED\fR, or \fBCT_DEV_EV_OFFLINE\fR. .sp .LP The \fBct_dev_status_get_minor()\fR function reads the \fBdevfs\fR path of the minor participating in the contract. The \fBdevfs\fR path returned does not include the \fB/devices\fR prefix. If the buffer passed in by the caller is too small (< \fBPATH_MAX\fR), the minimum size of the buffer required ( \fBPATH_MAX\fR) is returned to the caller via the \fIbuflenp\fR argument. .sp .LP The \fBct_dev_status_get_noneg()\fR function returns the "noneg" setting for the contract. A value of 1 is returned in the \fInonegp\fR argument if \fBNONEG\fR is set, else 0 is returned. .SH RETURN VALUES .sp .LP Upon successful completion, these functions return 0. Otherwise, they return a non-zero error value. .SH ERRORS .sp .LP The \fBct_dev_status_get_minor()\fR function will fail if: .sp .ne 2 .mk .na \fB\fBEOVERFLOW\fR\fR .ad .RS 13n .rt The buffer size is too small to hold the result. .RE .sp .LP The \fBct_dev_status_get_dev_state()\fR, \fBct_dev_status_get_aset()\fR, \fBct_dev_status_get_minor()\fR and \fBct_dev_status_get_noneg()\fR functions will fail if: .sp .ne 2 .mk .na \fB\fBEINVAL\fR\fR .ad .RS 10n .rt An invalid argument was specified. .RE .sp .ne 2 .mk .na \fB\fBENOENT\fR\fR .ad .RS 10n .rt The requested data is not present in the status object. .RE .SH ATTRIBUTES .sp .LP See \fBattributes\fR(7) for descriptions of the following attributes: .sp .TS tab( ) box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) . ATTRIBUTE TYPE ATTRIBUTE VALUE _ Interface Stability Committed _ MT-Level Safe .TE .sp .SH SEE ALSO .sp .LP \fBct_status_free\fR(3CONTRACT), \fBct_status_read\fR(3CONTRACT), \fBlibcontract\fR(3LIB), \fBcontract\fR(5), \fBdevices\fR(5), \fBattributes\fR(7), \fBlfcompile\fR(7)