coroutine: New module

[ccan] / ccan / coroutine / _info

diff --git a/ccan/coroutine/_info b/ccan/coroutine/_info
new file mode 100644 (file)
index 0000000..a99629c
--- /dev/null
+++ b/ccan/coroutine/_info
@@ -0,0 +1,44 @@
+#include "config.h"
+#include <stdio.h>
+#include <string.h>
+
+/**
+ * coroutine - Co-routines
+ *
+ * This code has helper functions for implementing co-routines, that
+ * is, explicit co-operative context switching.  It's intended to
+ * provide similar functionality to ucontext, but with a cleaner
+ * interface.  At the moment this is implemented in terms of ucontext,
+ * but the hope is to add other implementations for platforms that
+ * don't have ucontext in future.
+ *
+ * Author: David Gibson <david@gibson.dropbear.id.au>
+ * License: LGPL (v2.1 or any later version)
+ *
+ * Ccanlint:
+ *     // Context switching really confuses valgrind
+ *     tests_pass_valgrind FAIL
+ */
+int main(int argc, char *argv[])
+{
+       /* Expect exactly one argument */
+       if (argc != 2)
+               return 1;
+
+       if (strcmp(argv[1], "depends") == 0) {
+               printf("ccan/ptrint\n");
+               printf("ccan/compiler\n");
+               printf("ccan/build_assert\n");
+               printf("ccan/typesafe_cb\n");
+               return 0;
+       }
+
+       if (strcmp(argv[1], "ported") == 0) {
+#if !HAVE_UCONTEXT
+               printf("Requires working ucontext.h\n");
+#endif
+               return 0;
+       }
+
+       return 1;
+}