summaryrefslogtreecommitdiffstats
path: root/src/cls/rgw_gc
diff options
context:
space:
mode:
Diffstat (limited to 'src/cls/rgw_gc')
-rw-r--r--src/cls/rgw_gc/cls_rgw_gc.cc561
-rw-r--r--src/cls/rgw_gc/cls_rgw_gc_client.cc108
-rw-r--r--src/cls/rgw_gc/cls_rgw_gc_client.h23
-rw-r--r--src/cls/rgw_gc/cls_rgw_gc_const.h12
-rw-r--r--src/cls/rgw_gc/cls_rgw_gc_ops.h71
-rw-r--r--src/cls/rgw_gc/cls_rgw_gc_types.h37
6 files changed, 812 insertions, 0 deletions
diff --git a/src/cls/rgw_gc/cls_rgw_gc.cc b/src/cls/rgw_gc/cls_rgw_gc.cc
new file mode 100644
index 000000000..d6cd7767a
--- /dev/null
+++ b/src/cls/rgw_gc/cls_rgw_gc.cc
@@ -0,0 +1,561 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include "include/types.h"
+
+#include <errno.h>
+
+#include "objclass/objclass.h"
+#include "cls/rgw/cls_rgw_ops.h"
+#include "cls/rgw/cls_rgw_types.h"
+#include "cls/rgw_gc/cls_rgw_gc_types.h"
+#include "cls/rgw_gc/cls_rgw_gc_ops.h"
+#include "cls/queue/cls_queue_ops.h"
+#include "cls/rgw_gc/cls_rgw_gc_const.h"
+#include "cls/queue/cls_queue_src.h"
+
+#include "common/ceph_context.h"
+#include "global/global_context.h"
+
+#define dout_context g_ceph_context
+#define dout_subsys ceph_subsys_rgw
+
+#define GC_LIST_DEFAULT_MAX 128
+
+using std::string;
+
+using ceph::bufferlist;
+using ceph::decode;
+using ceph::encode;
+using ceph::make_timespan;
+using ceph::real_time;
+
+CLS_VER(1,0)
+CLS_NAME(rgw_gc)
+
+static int cls_rgw_gc_queue_init(cls_method_context_t hctx, bufferlist *in, bufferlist *out)
+{
+ auto in_iter = in->cbegin();
+
+ cls_rgw_gc_queue_init_op op;
+ try {
+ decode(op, in_iter);
+ } catch (ceph::buffer::error& err) {
+ CLS_LOG(5, "ERROR: cls_rgw_gc_queue_init: failed to decode entry\n");
+ return -EINVAL;
+ }
+
+ cls_rgw_gc_urgent_data urgent_data;
+ urgent_data.num_urgent_data_entries = op.num_deferred_entries;
+
+ cls_queue_init_op init_op;
+
+ CLS_LOG(10, "INFO: cls_rgw_gc_queue_init: queue size is %lu\n", op.size);
+
+ init_op.queue_size = op.size;
+ init_op.max_urgent_data_size = g_ceph_context->_conf->rgw_gc_max_deferred_entries_size;
+ encode(urgent_data, init_op.bl_urgent_data);
+
+ return queue_init(hctx, init_op);
+}
+
+static int cls_rgw_gc_queue_enqueue(cls_method_context_t hctx, bufferlist *in, bufferlist *out)
+{
+ auto in_iter = in->cbegin();
+ cls_rgw_gc_set_entry_op op;
+ try {
+ decode(op, in_iter);
+ } catch (ceph::buffer::error& err) {
+ CLS_LOG(1, "ERROR: cls_rgw_gc_queue_enqueue: failed to decode entry\n");
+ return -EINVAL;
+ }
+
+ op.info.time = ceph::real_clock::now();
+ op.info.time += make_timespan(op.expiration_secs);
+
+ //get head
+ cls_queue_head head;
+ int ret = queue_read_head(hctx, head);
+ if (ret < 0) {
+ return ret;
+ }
+
+ cls_queue_enqueue_op enqueue_op;
+ bufferlist bl_data;
+ encode(op.info, bl_data);
+ enqueue_op.bl_data_vec.emplace_back(bl_data);
+
+ CLS_LOG(20, "INFO: cls_rgw_gc_queue_enqueue: Data size is: %u \n", bl_data.length());
+
+ ret = queue_enqueue(hctx, enqueue_op, head);
+ if (ret < 0) {
+ return ret;
+ }
+
+ //Write back head
+ return queue_write_head(hctx, head);
+}
+
+static int cls_rgw_gc_queue_list_entries(cls_method_context_t hctx, bufferlist *in, bufferlist *out)
+{
+ auto in_iter = in->cbegin();
+ cls_rgw_gc_list_op op;
+ try {
+ decode(op, in_iter);
+ } catch (ceph::buffer::error& err) {
+ CLS_LOG(5, "ERROR: cls_rgw_gc_queue_list_entries(): failed to decode input\n");
+ return -EINVAL;
+ }
+
+ cls_queue_head head;
+ auto ret = queue_read_head(hctx, head);
+ if (ret < 0) {
+ return ret;
+ }
+
+ cls_rgw_gc_urgent_data urgent_data;
+ if (head.bl_urgent_data.length() > 0) {
+ auto iter_urgent_data = head.bl_urgent_data.cbegin();
+ try {
+ decode(urgent_data, iter_urgent_data);
+ } catch (ceph::buffer::error& err) {
+ CLS_LOG(5, "ERROR: cls_rgw_gc_queue_list_entries(): failed to decode urgent data\n");
+ return -EINVAL;
+ }
+ }
+
+ cls_queue_list_op list_op;
+ if (! op.max) {
+ op.max = GC_LIST_DEFAULT_MAX;
+ }
+
+ list_op.max = op.max;
+ list_op.start_marker = op.marker;
+
+ cls_rgw_gc_list_ret list_ret;
+ uint32_t num_entries = 0; //Entries excluding the deferred ones
+ bool is_truncated = true;
+ string next_marker;
+ do {
+ cls_queue_list_ret op_ret;
+ int ret = queue_list_entries(hctx, list_op, op_ret, head);
+ if (ret < 0) {
+ CLS_LOG(5, "ERROR: queue_list_entries(): returned error %d\n", ret);
+ return ret;
+ }
+ is_truncated = op_ret.is_truncated;
+ next_marker = op_ret.next_marker;
+
+ if (op_ret.entries.size()) {
+ for (auto it : op_ret.entries) {
+ cls_rgw_gc_obj_info info;
+ try {
+ decode(info, it.data);
+ } catch (ceph::buffer::error& err) {
+ CLS_LOG(5, "ERROR: cls_rgw_gc_queue_list_entries(): failed to decode gc info\n");
+ return -EINVAL;
+ }
+ bool found = false;
+ //Check for info tag in urgent data map
+ auto iter = urgent_data.urgent_data_map.find(info.tag);
+ if (iter != urgent_data.urgent_data_map.end()) {
+ found = true;
+ if (iter->second > info.time) {
+ CLS_LOG(10, "INFO: cls_rgw_gc_queue_list_entries(): tag found in urgent data: %s\n", info.tag.c_str());
+ continue;
+ }
+ }
+ //Search in xattrs
+ if (! found && urgent_data.num_xattr_urgent_entries > 0) {
+ bufferlist bl_xattrs;
+ int ret = cls_cxx_getxattr(hctx, "cls_queue_urgent_data", &bl_xattrs);
+ if (ret < 0 && (ret != -ENOENT && ret != -ENODATA)) {
+ CLS_LOG(0, "ERROR: %s(): cls_cxx_getxattrs() returned %d", __func__, ret);
+ return ret;
+ }
+ if (ret != -ENOENT && ret != -ENODATA) {
+ std::unordered_map<string,ceph::real_time> xattr_urgent_data_map;
+ auto iter = bl_xattrs.cbegin();
+ try {
+ decode(xattr_urgent_data_map, iter);
+ } catch (ceph::buffer::error& err) {
+ CLS_LOG(1, "ERROR: cls_rgw_gc_queue_list_entries(): failed to decode xattrs urgent data map\n");
+ return -EINVAL;
+ } //end - catch
+ auto xattr_iter = xattr_urgent_data_map.find(info.tag);
+ if (xattr_iter != xattr_urgent_data_map.end()) {
+ if (xattr_iter->second > info.time) {
+ CLS_LOG(1, "INFO: cls_rgw_gc_queue_list_entries(): tag found in xattrs urgent data map: %s\n", info.tag.c_str());
+ continue;
+ }
+ }
+ } // end - ret != ENOENT && ENODATA
+ } // end - if not found
+ if (op.expired_only) {
+ real_time now = ceph::real_clock::now();
+ if (info.time <= now) {
+ list_ret.entries.emplace_back(info);
+ }
+ //Can break out here if info.time > now, since all subsequent entries won't have expired
+ } else {
+ list_ret.entries.emplace_back(info);
+ }
+ num_entries++;
+ }
+ CLS_LOG(10, "INFO: cls_rgw_gc_queue_list_entries(): num_entries: %u and op.max: %u\n", num_entries, op.max);
+ if (num_entries < op.max) {
+ list_op.max = (op.max - num_entries);
+ list_op.start_marker = op_ret.next_marker;
+ out->clear();
+ } else {
+ //We've reached the max number of entries needed
+ break;
+ }
+ } else {
+ //We dont have data to process
+ break;
+ }
+ } while(is_truncated);
+
+ list_ret.truncated = is_truncated;
+ if (list_ret.truncated) {
+ list_ret.next_marker = next_marker;
+ }
+ out->clear();
+ encode(list_ret, *out);
+ return 0;
+}
+
+static int cls_rgw_gc_queue_remove_entries(cls_method_context_t hctx, bufferlist *in, bufferlist *out)
+{
+ auto in_iter = in->cbegin();
+
+ cls_rgw_gc_queue_remove_entries_op op;
+ try {
+ decode(op, in_iter);
+ } catch (ceph::buffer::error& err) {
+ CLS_LOG(5, "ERROR: cls_rgw_gc_queue_remove_entries(): failed to decode input\n");
+ return -EINVAL;
+ }
+
+ cls_queue_head head;
+ auto ret = queue_read_head(hctx, head);
+ if (ret < 0) {
+ return ret;
+ }
+
+ cls_rgw_gc_urgent_data urgent_data;
+ if (head.bl_urgent_data.length() > 0) {
+ auto iter_urgent_data = head.bl_urgent_data.cbegin();
+ try {
+ decode(urgent_data, iter_urgent_data);
+ } catch (ceph::buffer::error& err) {
+ CLS_LOG(5, "ERROR: cls_rgw_gc_queue_remove_entries(): failed to decode urgent data\n");
+ return -EINVAL;
+ }
+ }
+
+ // List entries and calculate total number of entries (including invalid entries)
+ if (! op.num_entries) {
+ op.num_entries = GC_LIST_DEFAULT_MAX;
+ }
+ cls_queue_list_op list_op;
+ list_op.max = op.num_entries + 1; // +1 to get the offset of last + 1 entry
+ bool is_truncated = true;
+ uint32_t total_num_entries = 0, num_entries = 0;
+ string end_marker;
+ do {
+ cls_queue_list_ret op_ret;
+ int ret = queue_list_entries(hctx, list_op, op_ret, head);
+ if (ret < 0) {
+ CLS_LOG(5, "ERROR: queue_list_entries(): returned error %d\n", ret);
+ return ret;
+ }
+
+ is_truncated = op_ret.is_truncated;
+ unsigned int index = 0;
+ // If data is not empty
+ if (op_ret.entries.size()) {
+ for (auto it : op_ret.entries) {
+ cls_rgw_gc_obj_info info;
+ try {
+ decode(info, it.data);
+ } catch (ceph::buffer::error& err) {
+ CLS_LOG(5, "ERROR: cls_rgw_gc_queue_remove_entries(): failed to decode gc info\n");
+ return -EINVAL;
+ }
+ CLS_LOG(20, "INFO: cls_rgw_gc_queue_remove_entries(): entry: %s\n", info.tag.c_str());
+ total_num_entries++;
+ index++;
+ bool found = false;
+ //Search for tag in urgent data map
+ auto iter = urgent_data.urgent_data_map.find(info.tag);
+ if (iter != urgent_data.urgent_data_map.end()) {
+ found = true;
+ if (iter->second > info.time) {
+ CLS_LOG(10, "INFO: cls_rgw_gc_queue_remove_entries(): tag found in urgent data: %s\n", info.tag.c_str());
+ continue;
+ } else if (iter->second == info.time) {
+ CLS_LOG(10, "INFO: cls_rgw_gc_queue_remove_entries(): erasing tag from urgent data: %s\n", info.tag.c_str());
+ urgent_data.urgent_data_map.erase(info.tag); //erase entry from map, as it will be removed later from queue
+ urgent_data.num_head_urgent_entries -= 1;
+ }
+ }//end-if map end
+ if (! found && urgent_data.num_xattr_urgent_entries > 0) {
+ //Search in xattrs
+ bufferlist bl_xattrs;
+ int ret = cls_cxx_getxattr(hctx, "cls_queue_urgent_data", &bl_xattrs);
+ if (ret < 0 && (ret != -ENOENT && ret != -ENODATA)) {
+ CLS_LOG(0, "ERROR: %s(): cls_cxx_getxattrs() returned %d", __func__, ret);
+ return ret;
+ }
+ if (ret != -ENOENT && ret != -ENODATA) {
+ std::unordered_map<string,ceph::real_time> xattr_urgent_data_map;
+ auto iter = bl_xattrs.cbegin();
+ try {
+ decode(xattr_urgent_data_map, iter);
+ } catch (ceph::buffer::error& err) {
+ CLS_LOG(5, "ERROR: cls_rgw_gc_queue_remove_entries(): failed to decode xattrs urgent data map\n");
+ return -EINVAL;
+ } //end - catch
+ auto xattr_iter = xattr_urgent_data_map.find(info.tag);
+ if (xattr_iter != xattr_urgent_data_map.end()) {
+ if (xattr_iter->second > info.time) {
+ CLS_LOG(10, "INFO: cls_rgw_gc_queue_remove_entries(): tag found in xattrs urgent data map: %s\n", info.tag.c_str());
+ continue;
+ } else if (xattr_iter->second == info.time) {
+ CLS_LOG(10, "INFO: cls_rgw_gc_queue_remove_entries(): erasing tag from xattrs urgent data: %s\n", info.tag.c_str());
+ xattr_urgent_data_map.erase(info.tag); //erase entry from map, as it will be removed later
+ urgent_data.num_xattr_urgent_entries -= 1;
+ }
+ }
+ } // end - ret != ENOENT && ENODATA
+ }// search in xattrs
+ num_entries++;
+ }//end-for
+
+ if (num_entries < (op.num_entries + 1)) {
+ if (! op_ret.is_truncated) {
+ end_marker = op_ret.next_marker;
+ CLS_LOG(10, "INFO: cls_rgw_gc_queue_remove_entries(): not truncated and end offset is %s\n", end_marker.c_str());
+ break;
+ } else {
+ list_op.max = ((op.num_entries + 1) - num_entries);
+ list_op.start_marker = op_ret.next_marker;
+ out->clear();
+ }
+ } else {
+ end_marker = op_ret.entries[index - 1].marker;
+ CLS_LOG(1, "INFO: cls_rgw_gc_queue_remove_entries(): index is %u and end_offset is: %s\n", index, end_marker.c_str());
+ break;
+ }
+ } //end-if
+ else {
+ break;
+ }
+ } while(is_truncated);
+
+ CLS_LOG(10, "INFO: cls_rgw_gc_queue_remove_entries(): Total number of entries to remove: %d\n", total_num_entries);
+ CLS_LOG(10, "INFO: cls_rgw_gc_queue_remove_entries(): End offset is %s\n", end_marker.c_str());
+
+ if (! end_marker.empty()) {
+ cls_queue_remove_op rem_op;
+ rem_op.end_marker = end_marker;
+ int ret = queue_remove_entries(hctx, rem_op, head);
+ if (ret < 0) {
+ CLS_LOG(5, "ERROR: queue_remove_entries(): returned error %d\n", ret);
+ return ret;
+ }
+ }
+
+ //Update urgent data map
+ head.bl_urgent_data.clear();
+ encode(urgent_data, head.bl_urgent_data);
+ CLS_LOG(5, "INFO: cls_rgw_gc_queue_remove_entries(): Urgent data size is %u\n", head.bl_urgent_data.length());
+
+ return queue_write_head(hctx, head);
+}
+
+static int cls_rgw_gc_queue_update_entry(cls_method_context_t hctx, bufferlist *in, bufferlist *out)
+{
+ int ret = 0;
+ auto in_iter = in->cbegin();
+
+ cls_rgw_gc_queue_defer_entry_op op;
+ try {
+ decode(op, in_iter);
+ } catch (ceph::buffer::error& err) {
+ CLS_LOG(5, "ERROR: cls_rgw_gc_queue_update_entry(): failed to decode input\n");
+ return -EINVAL;
+ }
+
+ op.info.time = ceph::real_clock::now();
+ op.info.time += make_timespan(op.expiration_secs);
+
+ // Read head
+ cls_queue_head head;
+ ret = queue_read_head(hctx, head);
+ if (ret < 0) {
+ return ret;
+ }
+
+ auto bl_iter = head.bl_urgent_data.cbegin();
+ cls_rgw_gc_urgent_data urgent_data;
+ try {
+ decode(urgent_data, bl_iter);
+ } catch (ceph::buffer::error& err) {
+ CLS_LOG(5, "ERROR: cls_rgw_gc_queue_update_entry(): failed to decode urgent data\n");
+ return -EINVAL;
+ }
+
+ //has_urgent_data signifies whether urgent data in queue has changed
+ bool has_urgent_data = false, tag_found = false;
+ //search in unordered map in head
+ auto it = urgent_data.urgent_data_map.find(op.info.tag);
+ if (it != urgent_data.urgent_data_map.end()) {
+ it->second = op.info.time;
+ tag_found = true;
+ has_urgent_data = true;
+ } else { //search in xattrs
+ bufferlist bl_xattrs;
+ int ret = cls_cxx_getxattr(hctx, "cls_queue_urgent_data", &bl_xattrs);
+ if (ret < 0 && (ret != -ENOENT && ret != -ENODATA)) {
+ CLS_LOG(0, "ERROR: %s(): cls_cxx_getxattrs() returned %d", __func__, ret);
+ return ret;
+ }
+ if (ret != -ENOENT && ret != -ENODATA) {
+ std::unordered_map<string,ceph::real_time> xattr_urgent_data_map;
+ auto iter = bl_xattrs.cbegin();
+ try {
+ decode(xattr_urgent_data_map, iter);
+ } catch (ceph::buffer::error& err) {
+ CLS_LOG(1, "ERROR: cls_rgw_gc_queue_update_entry(): failed to decode xattrs urgent data map\n");
+ return -EINVAL;
+ } //end - catch
+ auto xattr_iter = xattr_urgent_data_map.find(op.info.tag);
+ if (xattr_iter != xattr_urgent_data_map.end()) {
+ xattr_iter->second = op.info.time;
+ tag_found = true;
+ //write the updated map back
+ bufferlist bl_map;
+ encode(xattr_urgent_data_map, bl_map);
+ ret = cls_cxx_setxattr(hctx, "cls_queue_urgent_data", &bl_map);
+ CLS_LOG(20, "%s(): setting attr: %s", __func__, "cls_queue_urgent_data");
+ if (ret < 0) {
+ CLS_LOG(0, "ERROR: %s(): cls_cxx_setxattr (attr=%s) returned %d", __func__, "cls_queue_urgent_data", ret);
+ return ret;
+ }
+ }
+ }// end ret != ENOENT ...
+ }
+
+ if (! tag_found) {
+ //try inserting in queue head
+ urgent_data.urgent_data_map.insert({op.info.tag, op.info.time});
+ urgent_data.num_head_urgent_entries += 1;
+ has_urgent_data = true;
+
+ bufferlist bl_urgent_data;
+ encode(urgent_data, bl_urgent_data);
+ //insert as xattrs
+ if (bl_urgent_data.length() > head.max_urgent_data_size) {
+ //remove inserted entry from urgent data
+ urgent_data.urgent_data_map.erase(op.info.tag);
+ urgent_data.num_head_urgent_entries -= 1;
+ has_urgent_data = false;
+
+ bufferlist bl_xattrs;
+ int ret = cls_cxx_getxattr(hctx, "cls_queue_urgent_data", &bl_xattrs);
+ if (ret < 0 && (ret != -ENOENT && ret != -ENODATA)) {
+ CLS_LOG(0, "ERROR: %s(): cls_cxx_getxattrs() returned %d", __func__, ret);
+ return ret;
+ }
+ std::unordered_map<string,ceph::real_time> xattr_urgent_data_map;
+ if (ret != -ENOENT && ret != -ENODATA) {
+ auto iter = bl_xattrs.cbegin();
+ try {
+ decode(xattr_urgent_data_map, iter);
+ } catch (ceph::buffer::error& err) {
+ CLS_LOG(1, "ERROR: cls_rgw_gc_queue_remove_entries(): failed to decode xattrs urgent data map\n");
+ return -EINVAL;
+ } //end - catch
+ }
+ xattr_urgent_data_map.insert({op.info.tag, op.info.time});
+ urgent_data.num_xattr_urgent_entries += 1;
+ has_urgent_data = true;
+ bufferlist bl_map;
+ encode(xattr_urgent_data_map, bl_map);
+ ret = cls_cxx_setxattr(hctx, "cls_queue_urgent_data", &bl_map);
+ CLS_LOG(20, "%s(): setting attr: %s", __func__, "cls_queue_urgent_data");
+ if (ret < 0) {
+ CLS_LOG(0, "ERROR: %s(): cls_cxx_setxattr (attr=%s) returned %d", __func__, "cls_queue_urgent_data", ret);
+ return ret;
+ }
+ }
+ }
+
+ if ((urgent_data.num_head_urgent_entries + urgent_data.num_xattr_urgent_entries) > urgent_data.num_urgent_data_entries) {
+ CLS_LOG(20, "Total num entries %u", urgent_data.num_urgent_data_entries);
+ CLS_LOG(20, "Num xattr entries %u", urgent_data.num_xattr_urgent_entries);
+ CLS_LOG(20, "Num head entries %u", urgent_data.num_head_urgent_entries);
+ CLS_LOG(0, "ERROR: Number of urgent data entries exceeded that requested by user, returning no space!");
+ return -ENOSPC;
+ }
+
+ // Due to Tracker 47866 we are no longer executing this code, as it
+ // appears to possibly create a GC entry for an object that has not
+ // been deleted. Instead we will log at level 0 to perhaps confirm
+ // that when and how often this bug would otherwise be hit.
+#if 0
+ cls_queue_enqueue_op enqueue_op;
+ bufferlist bl_data;
+ encode(op.info, bl_data);
+ enqueue_op.bl_data_vec.emplace_back(bl_data);
+ CLS_LOG(10, "INFO: cls_gc_update_entry: Data size is: %u \n", bl_data.length());
+
+ ret = queue_enqueue(hctx, enqueue_op, head);
+ if (ret < 0) {
+ return ret;
+ }
+#else
+ std::string first_chain = "<empty-chain>";
+ if (! op.info.chain.objs.empty()) {
+ first_chain = op.info.chain.objs.cbegin()->key.name;
+ }
+ CLS_LOG(0,
+ "INFO: refrained from enqueueing GC entry during GC defer"
+ " tag=%s, first_chain=%s\n",
+ op.info.tag.c_str(), first_chain.c_str());
+#endif
+
+ if (has_urgent_data) {
+ head.bl_urgent_data.clear();
+ encode(urgent_data, head.bl_urgent_data);
+ }
+
+ return queue_write_head(hctx, head);
+}
+
+CLS_INIT(rgw_gc)
+{
+ CLS_LOG(1, "Loaded rgw gc class!");
+
+ cls_handle_t h_class;
+ cls_method_handle_t h_rgw_gc_queue_init;
+ cls_method_handle_t h_rgw_gc_queue_enqueue;
+ cls_method_handle_t h_rgw_gc_queue_list_entries;
+ cls_method_handle_t h_rgw_gc_queue_remove_entries;
+ cls_method_handle_t h_rgw_gc_queue_update_entry;
+
+ cls_register(RGW_GC_CLASS, &h_class);
+
+ /* gc */
+ cls_register_cxx_method(h_class, RGW_GC_QUEUE_INIT, CLS_METHOD_RD | CLS_METHOD_WR, cls_rgw_gc_queue_init, &h_rgw_gc_queue_init);
+ cls_register_cxx_method(h_class, RGW_GC_QUEUE_ENQUEUE, CLS_METHOD_RD | CLS_METHOD_WR, cls_rgw_gc_queue_enqueue, &h_rgw_gc_queue_enqueue);
+ cls_register_cxx_method(h_class, RGW_GC_QUEUE_LIST_ENTRIES, CLS_METHOD_RD, cls_rgw_gc_queue_list_entries, &h_rgw_gc_queue_list_entries);
+ cls_register_cxx_method(h_class, RGW_GC_QUEUE_REMOVE_ENTRIES, CLS_METHOD_RD | CLS_METHOD_WR, cls_rgw_gc_queue_remove_entries, &h_rgw_gc_queue_remove_entries);
+ cls_register_cxx_method(h_class, RGW_GC_QUEUE_UPDATE_ENTRY, CLS_METHOD_RD | CLS_METHOD_WR, cls_rgw_gc_queue_update_entry, &h_rgw_gc_queue_update_entry);
+
+ return;
+}
+
diff --git a/src/cls/rgw_gc/cls_rgw_gc_client.cc b/src/cls/rgw_gc/cls_rgw_gc_client.cc
new file mode 100644
index 000000000..415ce8b75
--- /dev/null
+++ b/src/cls/rgw_gc/cls_rgw_gc_client.cc
@@ -0,0 +1,108 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+#include <errno.h>
+
+#include "cls/rgw/cls_rgw_ops.h"
+#include "cls/rgw_gc/cls_rgw_gc_ops.h"
+#include "cls/queue/cls_queue_ops.h"
+#include "cls/rgw_gc/cls_rgw_gc_const.h"
+#include "cls/queue/cls_queue_const.h"
+#include "cls/rgw_gc/cls_rgw_gc_client.h"
+
+using std::list;
+using std::string;
+
+using ceph::decode;
+using ceph::encode;
+
+using namespace librados;
+
+void cls_rgw_gc_queue_init(ObjectWriteOperation& op, uint64_t size, uint64_t num_deferred_entries)
+{
+ bufferlist in;
+ cls_rgw_gc_queue_init_op call;
+ call.size = size;
+ call.num_deferred_entries = num_deferred_entries;
+ encode(call, in);
+ op.exec(RGW_GC_CLASS, RGW_GC_QUEUE_INIT, in);
+}
+
+int cls_rgw_gc_queue_get_capacity(IoCtx& io_ctx, const string& oid, uint64_t& size)
+{
+ bufferlist in, out;
+ int r = io_ctx.exec(oid, QUEUE_CLASS, QUEUE_GET_CAPACITY, in, out);
+ if (r < 0)
+ return r;
+
+ cls_queue_get_capacity_ret op_ret;
+ auto iter = out.cbegin();
+ try {
+ decode(op_ret, iter);
+ } catch (ceph::buffer::error& err) {
+ return -EIO;
+ }
+
+ size = op_ret.queue_capacity;
+
+ return 0;
+}
+
+void cls_rgw_gc_queue_enqueue(ObjectWriteOperation& op, uint32_t expiration_secs, const cls_rgw_gc_obj_info& info)
+{
+ bufferlist in;
+ cls_rgw_gc_set_entry_op call;
+ call.expiration_secs = expiration_secs;
+ call.info = info;
+ encode(call, in);
+ op.exec(RGW_GC_CLASS, RGW_GC_QUEUE_ENQUEUE, in);
+}
+
+int cls_rgw_gc_queue_list_entries(IoCtx& io_ctx, const string& oid, const string& marker, uint32_t max, bool expired_only,
+ list<cls_rgw_gc_obj_info>& entries, bool *truncated, string& next_marker)
+{
+ bufferlist in, out;
+ cls_rgw_gc_list_op op;
+ op.marker = marker;
+ op.max = max;
+ op.expired_only = expired_only;
+ encode(op, in);
+
+ int r = io_ctx.exec(oid, RGW_GC_CLASS, RGW_GC_QUEUE_LIST_ENTRIES, in, out);
+ if (r < 0)
+ return r;
+
+ cls_rgw_gc_list_ret ret;
+ auto iter = out.cbegin();
+ try {
+ decode(ret, iter);
+ } catch (ceph::buffer::error& err) {
+ return -EIO;
+ }
+
+ entries.swap(ret.entries);
+
+ *truncated = ret.truncated;
+
+ next_marker = std::move(ret.next_marker);
+
+ return 0;
+}
+
+void cls_rgw_gc_queue_remove_entries(ObjectWriteOperation& op, uint32_t num_entries)
+{
+ bufferlist in, out;
+ cls_rgw_gc_queue_remove_entries_op rem_op;
+ rem_op.num_entries = num_entries;
+ encode(rem_op, in);
+ op.exec(RGW_GC_CLASS, RGW_GC_QUEUE_REMOVE_ENTRIES, in);
+}
+
+void cls_rgw_gc_queue_defer_entry(ObjectWriteOperation& op, uint32_t expiration_secs, const cls_rgw_gc_obj_info& info)
+{
+ bufferlist in;
+ cls_rgw_gc_queue_defer_entry_op defer_op;
+ defer_op.expiration_secs = expiration_secs;
+ defer_op.info = info;
+ encode(defer_op, in);
+ op.exec(RGW_GC_CLASS, RGW_GC_QUEUE_UPDATE_ENTRY, in);
+}
diff --git a/src/cls/rgw_gc/cls_rgw_gc_client.h b/src/cls/rgw_gc/cls_rgw_gc_client.h
new file mode 100644
index 000000000..88a042fc9
--- /dev/null
+++ b/src/cls/rgw_gc/cls_rgw_gc_client.h
@@ -0,0 +1,23 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#ifndef CEPH_CLS_RGW_GC_CLIENT_H
+#define CEPH_CLS_RGW_GC_CLIENT_H
+
+#include "include/rados/librados.hpp"
+
+#include "common/ceph_time.h"
+
+#include "cls/queue/cls_queue_ops.h"
+#include "cls/rgw/cls_rgw_types.h"
+#include "cls/rgw_gc/cls_rgw_gc_types.h"
+
+void cls_rgw_gc_queue_init(librados::ObjectWriteOperation& op, uint64_t size, uint64_t num_deferred_entries);
+int cls_rgw_gc_queue_get_capacity(librados::IoCtx& io_ctx, const std::string& oid, uint64_t& size);
+void cls_rgw_gc_queue_enqueue(librados::ObjectWriteOperation& op, uint32_t expiration_secs, const cls_rgw_gc_obj_info& info);
+int cls_rgw_gc_queue_list_entries(librados::IoCtx& io_ctx, const std::string& oid, const std::string& marker, uint32_t max, bool expired_only,
+ std::list<cls_rgw_gc_obj_info>& entries, bool *truncated, std::string& next_marker);
+void cls_rgw_gc_queue_remove_entries(librados::ObjectWriteOperation& op, uint32_t num_entries);
+void cls_rgw_gc_queue_defer_entry(librados::ObjectWriteOperation& op, uint32_t expiration_secs, const cls_rgw_gc_obj_info& info);
+
+#endif
diff --git a/src/cls/rgw_gc/cls_rgw_gc_const.h b/src/cls/rgw_gc/cls_rgw_gc_const.h
new file mode 100644
index 000000000..5a3d2b1d1
--- /dev/null
+++ b/src/cls/rgw_gc/cls_rgw_gc_const.h
@@ -0,0 +1,12 @@
+#ifndef CEPH_CLS_RGW_GC_CONSTS_H
+#define CEPH_CLS_RGW_GC_CONSTS_H
+
+#define RGW_GC_CLASS "rgw_gc"
+
+#define RGW_GC_QUEUE_INIT "rgw_gc_queue_init"
+#define RGW_GC_QUEUE_ENQUEUE "rgw_gc_queue_enqueue"
+#define RGW_GC_QUEUE_LIST_ENTRIES "rgw_gc_queue_list_entries"
+#define RGW_GC_QUEUE_REMOVE_ENTRIES "rgw_gc_queue_remove_entries"
+#define RGW_GC_QUEUE_UPDATE_ENTRY "rgw_gc_queue_update_entry"
+
+#endif \ No newline at end of file
diff --git a/src/cls/rgw_gc/cls_rgw_gc_ops.h b/src/cls/rgw_gc/cls_rgw_gc_ops.h
new file mode 100644
index 000000000..95f791c09
--- /dev/null
+++ b/src/cls/rgw_gc/cls_rgw_gc_ops.h
@@ -0,0 +1,71 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#ifndef CEPH_CLS_RGW_GC_OPS_H
+#define CEPH_CLS_RGW_GC_OPS_H
+
+#include "cls/rgw/cls_rgw_types.h"
+
+struct cls_rgw_gc_queue_init_op {
+ uint64_t size;
+ uint64_t num_deferred_entries{0};
+
+ cls_rgw_gc_queue_init_op() {}
+
+ void encode(ceph::buffer::list& bl) const {
+ ENCODE_START(1, 1, bl);
+ encode(size, bl);
+ encode(num_deferred_entries, bl);
+ ENCODE_FINISH(bl);
+ }
+
+ void decode(ceph::buffer::list::const_iterator& bl) {
+ DECODE_START(1, bl);
+ decode(size, bl);
+ decode(num_deferred_entries, bl);
+ DECODE_FINISH(bl);
+ }
+
+};
+WRITE_CLASS_ENCODER(cls_rgw_gc_queue_init_op)
+
+struct cls_rgw_gc_queue_remove_entries_op {
+ uint64_t num_entries;
+
+ cls_rgw_gc_queue_remove_entries_op() {}
+
+ void encode(ceph::buffer::list& bl) const {
+ ENCODE_START(1, 1, bl);
+ encode(num_entries, bl);
+ ENCODE_FINISH(bl);
+ }
+
+ void decode(ceph::buffer::list::const_iterator& bl) {
+ DECODE_START(1, bl);
+ decode(num_entries, bl);
+ DECODE_FINISH(bl);
+ }
+};
+WRITE_CLASS_ENCODER(cls_rgw_gc_queue_remove_entries_op)
+
+struct cls_rgw_gc_queue_defer_entry_op {
+ uint32_t expiration_secs;
+ cls_rgw_gc_obj_info info;
+ cls_rgw_gc_queue_defer_entry_op() : expiration_secs(0) {}
+
+ void encode(ceph::buffer::list& bl) const {
+ ENCODE_START(1, 1, bl);
+ encode(expiration_secs, bl);
+ encode(info, bl);
+ ENCODE_FINISH(bl);
+ }
+
+ void decode(ceph::buffer::list::const_iterator& bl) {
+ DECODE_START(1, bl);
+ decode(expiration_secs, bl);
+ decode(info, bl);
+ DECODE_FINISH(bl);
+ }
+};
+WRITE_CLASS_ENCODER(cls_rgw_gc_queue_defer_entry_op)
+#endif /* CEPH_CLS_RGW_GC_OPS_H */
diff --git a/src/cls/rgw_gc/cls_rgw_gc_types.h b/src/cls/rgw_gc/cls_rgw_gc_types.h
new file mode 100644
index 000000000..da9d08036
--- /dev/null
+++ b/src/cls/rgw_gc/cls_rgw_gc_types.h
@@ -0,0 +1,37 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#ifndef CEPH_CLS_RGW_GC_TYPES_H
+#define CEPH_CLS_RGW_GC_TYPES_H
+
+#include "include/types.h"
+#include <unordered_map>
+
+struct cls_rgw_gc_urgent_data
+{
+ std::unordered_map<std::string, ceph::real_time> urgent_data_map;
+ uint32_t num_urgent_data_entries{0}; // requested by user
+ uint32_t num_head_urgent_entries{0}; // actual number of entries in queue head
+ uint32_t num_xattr_urgent_entries{0}; // actual number of entries in xattr in case of spill over
+
+ void encode(ceph::buffer::list& bl) const {
+ ENCODE_START(1, 1, bl);
+ encode(urgent_data_map, bl);
+ encode(num_urgent_data_entries, bl);
+ encode(num_head_urgent_entries, bl);
+ encode(num_xattr_urgent_entries, bl);
+ ENCODE_FINISH(bl);
+ }
+
+ void decode(ceph::buffer::list::const_iterator& bl) {
+ DECODE_START(1, bl);
+ decode(urgent_data_map, bl);
+ decode(num_urgent_data_entries, bl);
+ decode(num_head_urgent_entries, bl);
+ decode(num_xattr_urgent_entries, bl);
+ DECODE_FINISH(bl);
+ }
+};
+WRITE_CLASS_ENCODER(cls_rgw_gc_urgent_data)
+
+#endif