From ff04fb154bd74fd0681baa83b478095207e2719d Mon Sep 17 00:00:00 2001
From: Niklas Fiekas <niklas.fiekas@backscattering.de>
Date: Wed, 4 Jan 2023 19:36:43 -0800
Subject: [PATCH] Add C API for ReadOptions::async_io (#11062)

Summary: Pull Request resolved: https://github.com/facebook/rocksdb/pull/11062

Reviewed By: hx235

Differential Revision: D42297489

Pulled By: ajkr

fbshipit-source-id: 03fe1477c1ae1f8af73dc77a6986fdc7025edf4f
---
 db/c.cc             | 9 +++++++++
 db/c_test.c         | 3 +++
 include/rocksdb/c.h | 4 ++++
 3 files changed, 16 insertions(+)

diff --git a/db/c.cc b/db/c.cc
index d5ac613b4..9615791a8 100644
--- a/db/c.cc
+++ b/db/c.cc
@@ -4449,6 +4449,15 @@ rocksdb_readoptions_get_io_timeout(rocksdb_readoptions_t* opt) {
   return opt->rep.io_timeout.count();
 }
 
+void rocksdb_readoptions_set_async_io(rocksdb_readoptions_t* opt,
+                                      unsigned char v) {
+  opt->rep.async_io = v;
+}
+
+unsigned char rocksdb_readoptions_get_async_io(rocksdb_readoptions_t* opt) {
+  return opt->rep.async_io;
+}
+
 void rocksdb_readoptions_set_timestamp(rocksdb_readoptions_t* opt,
                                        const char* ts, size_t tslen) {
   if (ts == nullptr) {
diff --git a/db/c_test.c b/db/c_test.c
index 249ab9023..b6877d46a 100644
--- a/db/c_test.c
+++ b/db/c_test.c
@@ -2572,6 +2572,9 @@ int main(int argc, char** argv) {
     rocksdb_readoptions_set_io_timeout(ro, 400);
     CheckCondition(400 == rocksdb_readoptions_get_io_timeout(ro));
 
+    rocksdb_readoptions_set_async_io(ro, 1);
+    CheckCondition(1 == rocksdb_readoptions_get_async_io(ro));
+
     rocksdb_readoptions_destroy(ro);
   }
 
diff --git a/include/rocksdb/c.h b/include/rocksdb/c.h
index 5f3e586f2..11e4d2686 100644
--- a/include/rocksdb/c.h
+++ b/include/rocksdb/c.h
@@ -1894,6 +1894,10 @@ extern ROCKSDB_LIBRARY_API void rocksdb_readoptions_set_io_timeout(
     rocksdb_readoptions_t*, uint64_t microseconds);
 extern ROCKSDB_LIBRARY_API uint64_t
 rocksdb_readoptions_get_io_timeout(rocksdb_readoptions_t*);
+extern ROCKSDB_LIBRARY_API void rocksdb_readoptions_set_async_io(
+    rocksdb_readoptions_t*, unsigned char);
+extern ROCKSDB_LIBRARY_API unsigned char rocksdb_readoptions_get_async_io(
+    rocksdb_readoptions_t*);
 extern ROCKSDB_LIBRARY_API void rocksdb_readoptions_set_timestamp(
     rocksdb_readoptions_t*, const char* ts, size_t tslen);
 extern ROCKSDB_LIBRARY_API void rocksdb_readoptions_set_iter_start_ts(