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) |
) |
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</lang> |
</lang> |
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Finally, we can define a function test_pipe which tests the whole apparatus: |
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<lang fexl> |
<lang fexl> |
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\test_pipe = |
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(\next |
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print "== test_pipe";nl; |
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### Handy |
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\file_print == |
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(\fh\next |
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fgetc fh \ch |
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long_lt ch 0 next; |
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putchar ch; |
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file_print fh next |
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) |
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\show_stream = |
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(\label\fh\next |
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print "[ ";print label;print ":";nl; |
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file_print fh; |
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print "]";nl; |
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next |
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) |
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### Here is a child function to try with spawn. |
### Here is a child function to try with spawn. |
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next |
next |
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) |
) |
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# Spawn the child. |
# Spawn the child. |
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spawn child_fn \pid\child_in\child_out\child_err |
spawn child_fn \pid\child_in\child_out\child_err |
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print status;print ".";nl; |
print status;print ".";nl; |
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print "Good bye from parent.";nl; |
print "Good bye from parent.";nl; |
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print "test_pipe completed successfully.";nl; |
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next |
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) |
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</lang> |
</lang> |
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