Add in cffi 1.12.2 (e0c7666)

Since this is a mercurial repo, d/led zip of src:
https://bitbucket.org/cffi/cffi/get/v1.12.2.zip

Also add in misc METADATA/NOTICE/Android.bp/etc files.

Bug: 122778810
Test: None
Change-Id: I36c58ed07a2cdd4d9d11831908175a5c988f33c1

1 files changed, 42 insertions, 0 deletions

diff --git a/testing/cffi0/callback_in_thread.py b/testing/cffi0/callback_in_thread.py
new file mode 100644
index 0000000..c98605c
--- /dev/null
+++ b/testing/cffi0/callback_in_thread.py
@@ -0,0 +1,42 @@
+import sys, time
+sys.path.insert(0, sys.argv[1])
+from cffi import FFI
+
+def _run_callback_in_thread():
+    ffi = FFI()
+    ffi.cdef("""
+        typedef int (*mycallback_func_t)(int, int);
+        int threaded_ballback_test(mycallback_func_t mycb);
+    """)
+    lib = ffi.verify("""
+        #include <pthread.h>
+        typedef int (*mycallback_func_t)(int, int);
+        void *my_wait_function(void *ptr) {
+            mycallback_func_t cbfunc = (mycallback_func_t)ptr;
+            cbfunc(10, 10);
+            cbfunc(12, 15);
+            return NULL;
+        }
+        int threaded_ballback_test(mycallback_func_t mycb) {
+            pthread_t thread;
+            pthread_create(&thread, NULL, my_wait_function, (void*)mycb);
+            return 0;
+        }
+    """, extra_compile_args=['-pthread'])
+    seen = []
+    @ffi.callback('int(*)(int,int)')
+    def mycallback(x, y):
+        time.sleep(0.022)
+        seen.append((x, y))
+        return 0
+    lib.threaded_ballback_test(mycallback)
+    count = 300
+    while len(seen) != 2:
+        time.sleep(0.01)
+        count -= 1
+        assert count > 0, "timeout"
+    assert seen == [(10, 10), (12, 15)]
+
+print('STARTING')
+_run_callback_in_thread()
+print('DONE')