rgw/cache: This commit squashes the following commits for redis driver.

RGW: fix key_exists method for RedisDriver and clean up rgw_sal_d4n.cc
RGW: Implement RedisDriver::get_free_space
rgw/cache: modifying namespace from rgw::cal to rgw::cache.
RGW: Update D4N files to match CacheDriver changes
RGW: Fix D4N read workflow crashes
RGW: Update RedisDriver to match new CacheDriver structure; define set_attrs method
RGW: Switch out D4N cache methods with Redis driver methods
RGW: Update Cache Driver structure
RGW: Update cache files.
RGW: create redis cache driver files

Signed-off-by: Samarah <samarah.uriarte@ibm.com>

1 files changed, 43 insertions, 0 deletions

diff --git a/src/rgw/rgw_redis_driver.h b/src/rgw/rgw_redis_driver.h
new file mode 100644
index 00000000000..01c623acb68
--- /dev/null
+++ b/src/rgw/rgw_redis_driver.h
@@ -0,0 +1,43 @@
+#ifndef CEPH_REDISDRIVER_H
+#define CEPH_REDISDRIVER_H
+
+#include <string>
+#include <iostream>
+#include <cpp_redis/cpp_redis>
+#include "rgw_common.h"
+#include "rgw_cache_driver.h"
+#include "driver/d4n/d4n_directory.h"
+
+namespace rgw { namespace cache {
+
+class RedisDriver : public CacheDriver {
+  private:
+    cpp_redis::client client;
+
+  public:
+    RedisDriver(Partition& _partition_info, std::string host, int port) : CacheDriver() {}
+
+    virtual int initialize(CephContext* cct, const DoutPrefixProvider* dpp) override;
+    virtual int put(const DoutPrefixProvider* dpp, const std::string& key, bufferlist& bl, uint64_t len, rgw::sal::Attrs& attrs) override;
+    virtual int get(const DoutPrefixProvider* dpp, const std::string& key, off_t offset, uint64_t len, bufferlist& bl, rgw::sal::Attrs& attrs) override;
+    virtual int append_data(const DoutPrefixProvider* dpp, const::std::string& key, bufferlist& bl_data) override;
+    virtual int delete_data(const DoutPrefixProvider* dpp, const::std::string& key) override;
+    virtual int get_attrs(const DoutPrefixProvider* dpp, const std::string& key, rgw::sal::Attrs& attrs) override;
+    virtual int set_attrs(const DoutPrefixProvider* dpp, const std::string& key, rgw::sal::Attrs& attrs) override;
+    virtual int update_attrs(const DoutPrefixProvider* dpp, const std::string& key, rgw::sal::Attrs& attrs) override;
+    virtual int delete_attrs(const DoutPrefixProvider* dpp, const std::string& key, rgw::sal::Attrs& del_attrs) override;
+    virtual std::string get_attr(const DoutPrefixProvider* dpp, const std::string& key, const std::string& attr_name) override;
+    virtual int set_attr(const DoutPrefixProvider* dpp, const std::string& key, const std::string& attr_name, const std::string& attr_val) override;
+
+    /* Entry */
+    virtual bool key_exists(const DoutPrefixProvider* dpp, const std::string& key) override;
+    virtual size_t get_num_entries(const DoutPrefixProvider* dpp) override;
+
+    /* Partition */
+    virtual Partition get_current_partition_info(const DoutPrefixProvider* dpp) override;
+    virtual uint64_t get_free_space(const DoutPrefixProvider* dpp) override;
+};
+
+} } // namespace rgw::cal
+    
+#endif