From 4c41e51c07d1bd1540f1c4d77b0fec05776f37b9 Mon Sep 17 00:00:00 2001
From: mrambacher <mrambach@gmail.com>
Date: Fri, 16 Apr 2021 05:55:08 -0700
Subject: [PATCH] Add Blob Options to C API (#8148)

Summary:
Added the Blob option settings from the AdvancedColmnFamilyOptions to the C API.

There are no tests for getting/setting options in the C API currently, hence no specific test plans.  Should there be a some?

Pull Request resolved: https://github.com/facebook/rocksdb/pull/8148

Reviewed By: ltamasi

Differential Revision: D27568495

Pulled By: mrambacher

fbshipit-source-id: 3a52b784467ea2c4bc58be5f75c5d41f0a5c55d6
---
 db/c.cc             | 53 +++++++++++++++++++++++++++++++++++++++++++++
 db/c_test.c         | 19 ++++++++++++++++
 include/rocksdb/c.h | 31 ++++++++++++++++++++++++++
 3 files changed, 103 insertions(+)

diff --git a/db/c.cc b/db/c.cc
index 6cf194c50..e757d8367 100644
--- a/db/c.cc
+++ b/db/c.cc
@@ -2682,6 +2682,59 @@ unsigned char rocksdb_options_get_skip_checking_sst_file_sizes_on_db_open(
   return opt->rep.skip_checking_sst_file_sizes_on_db_open;
 }
 
+/* Blob Options Settings */
+void rocksdb_options_set_enable_blob_files(rocksdb_options_t* opt,
+                                           unsigned char val) {
+  opt->rep.enable_blob_files = val;
+}
+extern ROCKSDB_LIBRARY_API unsigned char rocksdb_options_get_enable_blob_files(
+    rocksdb_options_t* opt) {
+  return opt->rep.enable_blob_files;
+}
+
+void rocksdb_options_set_min_blob_size(rocksdb_options_t* opt, uint64_t val) {
+  opt->rep.min_blob_size = val;
+}
+
+uint64_t rocksdb_options_get_min_blob_size(rocksdb_options_t* opt) {
+  return opt->rep.min_blob_size;
+}
+
+void rocksdb_options_set_blob_file_size(rocksdb_options_t* opt, uint64_t val) {
+  opt->rep.blob_file_size = val;
+}
+
+uint64_t rocksdb_options_get_blob_file_size(rocksdb_options_t* opt) {
+  return opt->rep.blob_file_size;
+}
+
+void rocksdb_options_set_blob_compression_type(rocksdb_options_t* opt,
+                                               int val) {
+  opt->rep.blob_compression_type = static_cast<CompressionType>(val);
+}
+
+int rocksdb_options_get_blob_compression_type(rocksdb_options_t* opt) {
+  return opt->rep.blob_compression_type;
+}
+
+void rocksdb_options_set_enable_blob_gc(rocksdb_options_t* opt,
+                                        unsigned char val) {
+  opt->rep.enable_blob_garbage_collection = val;
+}
+
+unsigned char rocksdb_options_get_enable_blob_gc(rocksdb_options_t* opt) {
+  return opt->rep.enable_blob_garbage_collection;
+}
+
+void rocksdb_options_set_blob_gc_age_cutoff(rocksdb_options_t* opt,
+                                            double val) {
+  opt->rep.blob_garbage_collection_age_cutoff = val;
+}
+
+double rocksdb_options_get_blob_gc_age_cutoff(rocksdb_options_t* opt) {
+  return opt->rep.blob_garbage_collection_age_cutoff;
+}
+
 void rocksdb_options_set_num_levels(rocksdb_options_t* opt, int n) {
   opt->rep.num_levels = n;
 }
diff --git a/db/c_test.c b/db/c_test.c
index 37a2bc55a..d0d9e9ae5 100644
--- a/db/c_test.c
+++ b/db/c_test.c
@@ -1759,6 +1759,25 @@ int main(int argc, char** argv) {
     rocksdb_options_set_atomic_flush(o, 1);
     CheckCondition(1 == rocksdb_options_get_atomic_flush(o));
 
+    /* Blob Options */
+    rocksdb_options_set_enable_blob_files(o, 1);
+    CheckCondition(1 == rocksdb_options_get_enable_blob_files(o));
+
+    rocksdb_options_set_min_blob_size(o, 29);
+    CheckCondition(29 == rocksdb_options_get_min_blob_size(o));
+
+    rocksdb_options_set_blob_file_size(o, 30);
+    CheckCondition(30 == rocksdb_options_get_blob_file_size(o));
+
+    rocksdb_options_set_blob_compression_type(o, 4);
+    CheckCondition(4 == rocksdb_options_get_blob_compression_type(o));
+
+    rocksdb_options_set_enable_blob_gc(o, 1);
+    CheckCondition(1 == rocksdb_options_get_enable_blob_gc(o));
+
+    rocksdb_options_set_blob_gc_age_cutoff(o, 0.75);
+    CheckCondition(0.75 == rocksdb_options_get_blob_gc_age_cutoff(o));
+
     // Create a copy that should be equal to the original.
     rocksdb_options_t* copy;
     copy = rocksdb_options_create_copy(o);
diff --git a/include/rocksdb/c.h b/include/rocksdb/c.h
index ece2ff443..2c69924be 100644
--- a/include/rocksdb/c.h
+++ b/include/rocksdb/c.h
@@ -1068,6 +1068,37 @@ extern ROCKSDB_LIBRARY_API unsigned char
 rocksdb_options_get_skip_checking_sst_file_sizes_on_db_open(
     rocksdb_options_t* opt);
 
+/* Blob Options Settings */
+extern ROCKSDB_LIBRARY_API void rocksdb_options_set_enable_blob_files(
+    rocksdb_options_t* opt, unsigned char val);
+extern ROCKSDB_LIBRARY_API unsigned char rocksdb_options_get_enable_blob_files(
+    rocksdb_options_t* opt);
+
+extern ROCKSDB_LIBRARY_API void rocksdb_options_set_min_blob_size(
+    rocksdb_options_t* opt, uint64_t val);
+extern ROCKSDB_LIBRARY_API uint64_t
+rocksdb_options_get_min_blob_size(rocksdb_options_t* opt);
+
+extern ROCKSDB_LIBRARY_API void rocksdb_options_set_blob_file_size(
+    rocksdb_options_t* opt, uint64_t val);
+extern ROCKSDB_LIBRARY_API uint64_t
+rocksdb_options_get_blob_file_size(rocksdb_options_t* opt);
+
+extern ROCKSDB_LIBRARY_API void rocksdb_options_set_blob_compression_type(
+    rocksdb_options_t* opt, int val);
+extern ROCKSDB_LIBRARY_API int rocksdb_options_get_blob_compression_type(
+    rocksdb_options_t* opt);
+
+extern ROCKSDB_LIBRARY_API void rocksdb_options_set_enable_blob_gc(
+    rocksdb_options_t* opt, unsigned char val);
+extern ROCKSDB_LIBRARY_API unsigned char rocksdb_options_get_enable_blob_gc(
+    rocksdb_options_t* opt);
+
+extern ROCKSDB_LIBRARY_API void rocksdb_options_set_blob_gc_age_cutoff(
+    rocksdb_options_t* opt, double val);
+extern ROCKSDB_LIBRARY_API double rocksdb_options_get_blob_gc_age_cutoff(
+    rocksdb_options_t* opt);
+
 /* returns a pointer to a malloc()-ed, null terminated string */
 extern ROCKSDB_LIBRARY_API char* rocksdb_options_statistics_get_string(
     rocksdb_options_t* opt);