IPDL/Five minute example: Difference between revisions

IPDL/Five minute example (view source)

731 bytes added , 18 July 2009

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 == Write the IPDL "Hello, world" protocol ==
+(No, this isn't the traditional "Hello, world" example.  IPDL lacks facilities for printing.  I'm taking some poetic license.)
+You should be familiar with the following IPDL specification.  If not, you should re-read the [[IPDL/Getting started guide]].  Copy the code into <code>ipc/test-harness/Test.ipdl</code>.
+ namespace mozilla {
+ namespace test {
+ protocol Test
+ {
+ child:
+     Hello();
+ parent:
+     World();
+ };
+ } // namespace test
+ } // namespace mozilla
+We will use this specification to make a C++ program in which the parent sends the child the Hello() message, and the child prints "Hello, " to stdout.  The child will then send the parent the World() message, and the parent will print "world!" to stdout.
 == Run the IPDL compiler ==