// GetJobState gets the current state of the job indicated by jobID.
func (c *CUPS) GetJobState(jobID uint32) (cdd.PrintJobStateDiff, error) {
ja := C.newArrayOfStrings(C.int(len(jobAttributes)))
defer C.freeStringArrayAndStrings(ja, C.int(len(jobAttributes)))
for i, attribute := range jobAttributes {
C.setStringArrayValue(ja, C.int(i), C.CString(attribute))
}
response, err := c.cc.getJobAttributes(C.int(jobID), ja)
if err != nil {
return cdd.PrintJobStateDiff{}, err
}
// cupsDoRequest() returned ipp_t pointer needs explicit free.
defer C.ippDelete(response)
s := C.ippFindAttribute(response, C.JOB_STATE, C.IPP_TAG_ENUM)
state := int32(C.ippGetInteger(s, C.int(0)))
p := C.ippFindAttribute(response, C.JOB_MEDIA_SHEETS_COMPLETED, C.IPP_TAG_INTEGER)
var pages int32
if p != nil {
pages = int32(C.ippGetInteger(p, C.int(0)))
}
return convertJobState(state, pages), nil
}
// attributesToTags converts a slice of C.ipp_attribute_t to a
// string:string "tag" map. Outside of this package, "printer attributes" are
// known as "tags".
func attributesToTags(attributes []*C.ipp_attribute_t) map[string][]string {
tags := make(map[string][]string)
for _, a := range attributes {
key := C.GoString(C.ippGetName(a))
count := int(C.ippGetCount(a))
values := make([]string, count)
switch C.ippGetValueTag(a) {
case C.IPP_TAG_NOVALUE, C.IPP_TAG_NOTSETTABLE:
// No value means no value.
case C.IPP_TAG_INTEGER, C.IPP_TAG_ENUM:
for i := 0; i < count; i++ {
values[i] = strconv.FormatInt(int64(C.ippGetInteger(a, C.int(i))), 10)
}
case C.IPP_TAG_BOOLEAN:
for i := 0; i < count; i++ {
if int(C.ippGetInteger(a, C.int(i))) == 0 {
values[i] = "false"
} else {
values[i] = "true"
}
}
case C.IPP_TAG_STRING, C.IPP_TAG_TEXT, C.IPP_TAG_NAME, C.IPP_TAG_KEYWORD, C.IPP_TAG_URI, C.IPP_TAG_CHARSET, C.IPP_TAG_LANGUAGE, C.IPP_TAG_MIMETYPE:
for i := 0; i < count; i++ {
values[i] = C.GoString(C.ippGetString(a, C.int(i), nil))
}
case C.IPP_TAG_DATE:
for i := 0; i < count; i++ {
date := C.ippGetDate(a, C.int(i))
t := convertIPPDateToTime(date)
values[i] = strconv.FormatInt(t.Unix(), 10)
}
case C.IPP_TAG_RESOLUTION:
for i := 0; i < count; i++ {
yres := C.int(-1)
unit := C.int(-1)
xres := C.ippGetResolutionWrapper(a, C.int(i), &yres, &unit)
if unit == C.IPP_RES_PER_CM {
values[i] = fmt.Sprintf("%dx%dpp%s", int(xres), int(yres), "cm")
} else {
values[i] = fmt.Sprintf("%dx%dpp%s", int(xres), int(yres), "i")
}
}
case C.IPP_TAG_RANGE:
for i := 0; i < count; i++ {
uppervalue := C.int(-1)
lowervalue := C.ippGetRange(a, C.int(i), &uppervalue)
values[i] = fmt.Sprintf("%d~%d", int(lowervalue), int(uppervalue))
}
default:
if count > 0 {
values = []string{"unknown or unsupported type"}
}
}
if len(values) == 1 && values[0] == "none" {
values = []string{}
}
// This block fixes some drivers' marker types, which list an extra
// type containing a comma, which CUPS interprets as an extra type.
// The extra type starts with a space, so it's easy to detect.
if len(values) > 1 && len(values[len(values)-1]) > 1 && values[len(values)-1][0:1] == " " {
newValues := make([]string, len(values)-1)
for i := 0; i < len(values)-2; i++ {
newValues[i] = values[i]
}
newValues[len(newValues)-1] = strings.Join(values[len(values)-2:], ",")
values = newValues
}
tags[key] = values
}
return tags
}