Separate HTML for LOCAL Foil 48 TCE -- Implementation -- 26:Changing Channel Characteristics

HELP! * GREY=local LOCAL HTML version of Foils prepared July 6,1995

Foil 48 TCE -- Implementation -- 26:Changing Channel Characteristics

From Master Foils for Threads with TCE in detail CPS600 Spring Semester95 -- April 1995. by Janusz Niemiec and Geoffrey Fox * See also color IMAGE

To change channel characteristics, both communicating threads have to call tce_chn_set with identical parameters:

...
res = tce_chn_set(Channel,TCE_CHN_SYNC,1);
...
res = tce_chn_set(Channel,TCE_CHN_REG,1);
...

tce_chn_set can be also used to specify a tag for the sending or receiving messages. This time, the participation of the other process is not needed. When a thread blocks on a channel the tag is being preserved, even when a different thread changes that tag in a meantime.

...
res = tce_chn_set(Channel,TCE_CHN_TAG,13);
...

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