func (sm *StateMachine) Connect() error {
if e := C.GSM_InitConnection(sm.g, 1); e != C.ERR_NONE {
return Error{"InitConnection", e}
}
C.setStatusCallback(sm.g, &sm.status)
sm.smsc.Location = 1
if e := C.GSM_GetSMSC(sm.g, &sm.smsc); e != C.ERR_NONE {
return Error{"GetSMSC", e}
}
return nil
}
// Sends message
func (g *GSM) SendSMS(text, number string) (err error) {
var sms C.GSM_SMSMessage
var smsc C.GSM_SMSC
sms.PDU = C.SMS_Submit // submit message
sms.UDH.Type = C.UDH_NoUDH // no UDH, just a plain message
sms.Coding = C.SMS_Coding_Default_No_Compression // default coding for text
sms.Class = 1 // class 1 message (normal)
C.EncodeUnicode((*C.uchar)(unsafe.Pointer(&sms.Text)), C.CString(text), C.int(len(text)))
C.EncodeUnicode((*C.uchar)(unsafe.Pointer(&sms.Number)), C.CString(number), C.int(len(number)))
// we need to know SMSC number
smsc.Location = 1
e := C.GSM_GetSMSC(g.sm, &smsc)
if e != ERR_NONE {
err = errors.New(errorString(int(e)))
return
}
// set SMSC number in message
sms.SMSC.Number = smsc.Number
// Set flag before callind SendSMS, some phones might give instant response
smsSendStatus = ERR_TIMEOUT
// send message
e = C.GSM_SendSMS(g.sm, &sms)
if e != ERR_NONE {
err = errors.New(errorString(int(e)))
return
}
// wait for network reply
for {
C.GSM_ReadDevice(g.sm, C.gboolean(1))
if smsSendStatus == ERR_NONE {
break
}
if smsSendStatus != ERR_TIMEOUT {
err = errors.New(errorString(int(smsSendStatus)))
break
}
}
return
}