Adds a watch for this to the mainloop
| this |
the stream |
| priority |
the priority of the Stream source |
| cond |
the conditions to watch for (bitfield of StreamIOCondition) |
| func |
the function to call when the condition is satisfied |
| notify |
the function to call when the source is removed |
| opaque |
user data to pass to |
|
the event source id |