On 01/22/2011 11:29 AM, Stefan Hajnoczi wrote:
Add functions to create coroutines and transfer control into a coroutine
and back out again.


+
+struct Coroutine {
+    struct coroutine co;
+};
+

+/**
+ * Coroutine entry point
+ *
+ * When the coroutine is entered for the first time, opaque is passed in as an
+ * argument.
+ *
+ * When this function returns, the coroutine is destroyed automatically and the
+ * return value is passed back to the caller who last entered the coroutine.
+ */
+typedef void * coroutine_fn CoroutineEntry(void *opaque);

The more modern style is to use the Coroutine structure as argument, and let the coroutine function use container_of() to obtain access to its own data structures. Similarly it can store any return value there, avoiding casts to and from void pointers.

--
error compiling committee.c: too many arguments to function


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