cd_error_ack.7

7号信令功能代码,为开源代码

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.so lis.macros
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.\"
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.TH CD_ERROR_ACK 7 "2004/01/12 23:45:08" "LiS-2_16_18-8" "Linux STREAMS"
.SH NAME
.B CD_ERROR_ACK
\- error acknowledgment
.SH SYNOPSIS
This primitive consists of one
.B M_PCPROTO
message block structured as follows:
.sp
.nf
\fC\s-1\
typedef struct {
    cd_ulong cd_primitive;
    cd_ulong cd_state;
    cd_ulong cd_error_primitive;
    cd_ulong cd_errno;
    cd_ulong cd_explanation;
} cd_error_ack_t;
\fR\s+1
.fi
.SH DESCRIPTION
This provider originated primitives acknowledges that the previously received
primitive requiring an acknowledgment was received in error.  The primitive to
which the error acknowledgment applies and the error code are indicated.
.SS Parameters
This primitive contains the following parameters:
.TP
.I cd_primitive
Indicates the primitives type.
.TP
.I cd_state
Indicates the current state of the interface.
.I cd_state
can be one of the following values:
.RS
.TP
.B CD_UNATTACHED
No PPA attached.
.TP
.B CD_UNUSABLE
PPA cannot be used.
.TP
.B CD_DISABLED
PPA attached.
.TP
.B CD_ENABLE_PENDING
Waiting ack of enable req.
.TP
.B CD_ENABLED
Awaiting use.
.TP
.B CD_READ_ACTIVE
Input section enabled; disabled after data arrives.
.TP
.B CD_INPUT_ALLOWED
Input section permanently enabled.
.TP
.B CD_DISABLE_PENDING
Waiting ack of disable req.
.TP
.B CD_OUTPUT_ACTIVE
Output section active only.
.TP
.B CD_XRAY
Xray-ing another ppa.
.RE
.TP
.I cd_error_primitive
Indicates the primitive that was received in error.
.I cd_error_primitive
can be one of the following values:
.RS
.TP
.BR CD_ABORT_OUTPUT_REQ (7)
.TP
.BR CD_ALLOW_INPUT_REQ (7)
.TP
.BR CD_ATTACH_REQ (7)
.TP
.BR CD_DETACH_REQ (7)
.TP
.BR CD_DISABLE_REQ (7)
.TP
.BR CD_ENABLE_REQ (7)
.TP
.BR CD_HALT_INPUT_REQ (7)
.TP
.BR CD_INFO_REQ (7)
.TP
.BR CD_MODEM_SIG_REQ (7)
.TP
.BR CD_MUX_NAME_REQ (7)
.TP
.BR CD_READ_REQ (7)
.TP
.BR CD_UNITDATA_REQ (7)
.TP
.BR CD_WRITE_READ_REQ (7)
.RE
.TP
.I cd_errno
Indicates the reason for the error.
.I cd_errno
can be one of the following values:
.RS
.TP
.RB [ CD_BADADDRESS ]
Address was invalid.
.TP
.RB [ CD_BADADDRTYPE ]
Invalid address type.
.TP
.RB [ CD_BADDIAL ]
Dial information was invalid.
.TP
.RB [ CD_BADDIALTYPE ]
Invalid dial information type.
.TP
.RB [ CD_BADDISPOSAL ]
Invalid disposal parameter.
.TP
.RB [ CD_BADFRAME ]
Defective SDU received.
.TP
.RB [ CD_BADPPA ]
Invalid PPA identifier.
.TP
.RB [ CD_BADPRIM ]
Unrecognized primitive.
.TP
.RB [ CD_DISC ]
Disconnected.
.TP
.RB [ CD_EVENT ]
Protocol-specific event occurred.
.TP
.RB [ CD_FATALERR ]
Device has become unusable.
.TP
.RB [ CD_INITFAILED ]
Line initialization failed.
.TP
.RB [ CD_NOTSUPP ]
Primitive not supported by this device.
.TP
.RB [ CD_OUTSTATE ]
Primitive was issued from an invalid state.
.TP
.RB [ CD_PROTOSHORT ]
M_PROTO block too short.
.TP
.RB [ CD_READTIMEOUT ]
Read request timed out before data arrived.
.TP
.RB [ CD_SYSERR ]
UNIX system error.
.TP
.RB [ CD_WRITEFAIL ]
Unitdata request failed.
.RE
.TP
.I cd_explanation
not documented.
.SS State
This primitive is valid in any state where a local acknowledgment is pending
in response to one of the following primitives:
.BR CD_ABORT_OUTPUT_REQ (7),
.BR CD_ALLOW_INPUT_REQ (7),
.BR CD_ATTACH_REQ (7),
.BR CD_DETACH_REQ (7),
.BR CD_DISABLE_REQ (7),
.BR CD_ENABLE_REQ (7),
.BR CD_HALT_INPUT_REQ (7),
.BR CD_INFO_REQ (7),
.BR CD_MODEM_SIG_REQ (7),
.BR CD_MUX_NAME_REQ (7),
.BR CD_READ_REQ (7),
.BR CD_UNITDATA_REQ (7),
.BR CD_WRITE_READ_REQ (7).
The new state remains unchanged from the state in which the request primitive
was issued that illicited the error acknowledgment.
.SH FILES
<sys/cdi.h>
.SH "SEE ALSO"
.BR CD_ABORT_OUTPUT_REQ (7),
.BR CD_ALLOW_INPUT_REQ (7),
.BR CD_ATTACH_REQ (7),
.BR CD_DETACH_REQ (7),
.BR CD_DISABLE_REQ (7),
.BR CD_ENABLE_REQ (7),
.BR CD_HALT_INPUT_REQ (7),
.BR CD_INFO_REQ (7),
.BR CD_MODEM_SIG_REQ (7),
.BR CD_MUX_NAME_REQ (7),
.BR CD_READ_REQ (7),
.BR CD_UNITDATA_REQ (7),
.BR CD_WRITE_READ_REQ (7).
.SH VERSIONS
.PP
This manpage was written for
.B LiS\c
.
.[
LiS
.]
.br
The Communications Device Interface first appeared in SVR 4.
.[
svr4
.]
.br
This interface conforms to CDI with Gcom extensions.
.[
$LIST$
.]
.TA