<!-- ##### SECTION Title ##### -->
ECalBackendSync

<!-- ##### SECTION Short_Description ##### -->
Base class for synchronous backends.

<!-- ##### SECTION Long_Description ##### -->
<para>

</para>

<!-- ##### SECTION See_Also ##### -->
<para>

</para>

<!-- ##### SECTION Stability_Level ##### -->


<!-- ##### SECTION Image ##### -->


<!-- ##### STRUCT ECalBackendSync ##### -->
<para>

</para>


<!-- ##### USER_FUNCTION ECalBackendSyncFactoryFn ##### -->
<para>

</para>

@void: 
@Returns: 


<!-- ##### FUNCTION e_cal_backend_sync_set_lock ##### -->
<para>

</para>

@backend: 
@lock: 


<!-- ##### FUNCTION e_cal_backend_sync_is_read_only ##### -->
<para>

</para>

@backend: 
@cal: 
@read_only: 
@error: 


<!-- ##### FUNCTION e_cal_backend_sync_get_cal_address ##### -->
<para>

</para>

@backend: 
@cal: 
@address: 
@error: 


<!-- ##### FUNCTION e_cal_backend_sync_get_alarm_email_address ##### -->
<para>

</para>

@backend: 
@cal: 
@address: 
@error: 


<!-- ##### FUNCTION e_cal_backend_sync_get_ldap_attribute ##### -->
<para>

</para>

@backend: 
@cal: 
@attribute: 
@error: 


<!-- ##### FUNCTION e_cal_backend_sync_get_static_capabilities ##### -->
<para>

</para>

@backend: 
@cal: 
@capabiliites: 
@error: 


<!-- ##### FUNCTION e_cal_backend_sync_open ##### -->
<para>

</para>

@backend: 
@cal: 
@only_if_exists: 
@username: 
@password: 
@error: 


<!-- ##### FUNCTION e_cal_backend_sync_refresh ##### -->
<para>

</para>

@backend: 
@cal: 
@error: 


<!-- ##### FUNCTION e_cal_backend_sync_remove ##### -->
<para>

</para>

@backend: 
@cal: 
@error: 


<!-- ##### FUNCTION e_cal_backend_sync_create_object ##### -->
<para>

</para>

@backend: 
@cal: 
@calobj: 
@uid: 
@error: 


<!-- ##### FUNCTION e_cal_backend_sync_modify_object ##### -->
<para>

</para>

@backend: 
@cal: 
@calobj: 
@mod: 
@old_object: 
@new_object: 
@error: 


<!-- ##### FUNCTION e_cal_backend_sync_remove_object ##### -->
<para>

</para>

@backend: 
@cal: 
@uid: 
@rid: 
@mod: 
@old_object: 
@object: 
@error: 


<!-- ##### FUNCTION e_cal_backend_sync_get_attachment_list ##### -->
<para>

</para>

@backend: 
@cal: 
@uid: 
@rid: 
@attachments: 
@error: 


<!-- ##### FUNCTION e_cal_backend_sync_discard_alarm ##### -->
<para>

</para>

@backend: 
@cal: 
@uid: 
@auid: 
@error: 


<!-- ##### FUNCTION e_cal_backend_sync_receive_objects ##### -->
<para>

</para>

@backend: 
@cal: 
@calobj: 
@error: 


<!-- ##### FUNCTION e_cal_backend_sync_send_objects ##### -->
<para>

</para>

@backend: 
@cal: 
@calobj: 
@users: 
@modified_calobj: 
@error: 


<!-- ##### FUNCTION e_cal_backend_sync_get_default_object ##### -->
<para>

</para>

@backend: 
@cal: 
@object: 
@error: 


<!-- ##### FUNCTION e_cal_backend_sync_get_object ##### -->
<para>

</para>

@backend: 
@cal: 
@uid: 
@rid: 
@object: 
@error: 


<!-- ##### FUNCTION e_cal_backend_sync_get_object_list ##### -->
<para>

</para>

@backend: 
@cal: 
@sexp: 
@objects: 
@error: 


<!-- ##### FUNCTION e_cal_backend_sync_get_timezone ##### -->
<para>

</para>

@backend: 
@cal: 
@tzid: 
@object: 
@error: 


<!-- ##### FUNCTION e_cal_backend_sync_add_timezone ##### -->
<para>

</para>

@backend: 
@cal: 
@tzobj: 
@error: 


<!-- ##### FUNCTION e_cal_backend_sync_set_default_zone ##### -->
<para>

</para>

@backend: 
@cal: 
@tzobj: 
@error: 


<!-- ##### FUNCTION e_cal_backend_sync_get_changes ##### -->
<para>

</para>

@backend: 
@cal: 
@change_id: 
@adds: 
@modifies: 
@deletes: 
@error: 


<!-- ##### FUNCTION e_cal_backend_sync_get_free_busy ##### -->
<para>

</para>

@backend: 
@cal: 
@users: 
@start: 
@end: 
@freebusy: 
@error: 


