debuggerd_client: increase pipe buffer size to max.
If a process tries to dump itself (e.g. system_server during ANRs),
crash_dump will block trying to write to its pipe if it's not
sufficiently large. Increase the pipe size to the max, and add a test
to make sure that it's always at least 1MB (the default value).
Bug: http://b/38427757
Test: debuggerd_test
Change-Id: Iddb0cb1e5ce9e687efa9e94c2748a1edfe09f119
diff --git a/debuggerd/debuggerd_test.cpp b/debuggerd/debuggerd_test.cpp
index 8c00b76..9008b95 100644
--- a/debuggerd/debuggerd_test.cpp
+++ b/debuggerd/debuggerd_test.cpp
@@ -119,6 +119,8 @@
FAIL() << "failed to set pipe size: " << strerror(errno);
}
+ ASSERT_GE(pipe_buffer_size, 1024 * 1024);
+
if (send_fd(intercept_fd->get(), &req, sizeof(req), std::move(output_pipe_write)) != sizeof(req)) {
FAIL() << "failed to send output fd to tombstoned: " << strerror(errno);
}