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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#ifndef RBD_MIRROR_INSTANCE_WATCHER_TYPES_H
#define RBD_MIRROR_INSTANCE_WATCHER_TYPES_H
#include <string>
#include <set>
#include <boost/variant.hpp>
#include "include/buffer_fwd.h"
#include "include/encoding.h"
#include "include/int_types.h"
namespace ceph { class Formatter; }
namespace rbd {
namespace mirror {
namespace instance_watcher {
enum NotifyOp {
NOTIFY_OP_IMAGE_ACQUIRE = 0,
NOTIFY_OP_IMAGE_RELEASE = 1,
NOTIFY_OP_PEER_IMAGE_REMOVED = 2,
NOTIFY_OP_SYNC_REQUEST = 3,
NOTIFY_OP_SYNC_START = 4
};
struct PayloadBase {
uint64_t request_id;
PayloadBase() : request_id(0) {
}
PayloadBase(uint64_t request_id) : request_id(request_id) {
}
void encode(bufferlist &bl) const;
void decode(__u8 version, bufferlist::const_iterator &iter);
void dump(Formatter *f) const;
};
struct ImagePayloadBase : public PayloadBase {
std::string global_image_id;
ImagePayloadBase() : PayloadBase() {
}
ImagePayloadBase(uint64_t request_id, const std::string &global_image_id)
: PayloadBase(request_id), global_image_id(global_image_id) {
}
void encode(bufferlist &bl) const;
void decode(__u8 version, bufferlist::const_iterator &iter);
void dump(Formatter *f) const;
};
struct ImageAcquirePayload : public ImagePayloadBase {
static const NotifyOp NOTIFY_OP = NOTIFY_OP_IMAGE_ACQUIRE;
ImageAcquirePayload() {
}
ImageAcquirePayload(uint64_t request_id, const std::string &global_image_id)
: ImagePayloadBase(request_id, global_image_id) {
}
};
struct ImageReleasePayload : public ImagePayloadBase {
static const NotifyOp NOTIFY_OP = NOTIFY_OP_IMAGE_RELEASE;
ImageReleasePayload() {
}
ImageReleasePayload(uint64_t request_id, const std::string &global_image_id)
: ImagePayloadBase(request_id, global_image_id) {
}
};
struct PeerImageRemovedPayload : public PayloadBase {
static const NotifyOp NOTIFY_OP = NOTIFY_OP_PEER_IMAGE_REMOVED;
std::string global_image_id;
std::string peer_mirror_uuid;
PeerImageRemovedPayload() {
}
PeerImageRemovedPayload(uint64_t request_id,
const std::string& global_image_id,
const std::string& peer_mirror_uuid)
: PayloadBase(request_id),
global_image_id(global_image_id), peer_mirror_uuid(peer_mirror_uuid) {
}
void encode(bufferlist &bl) const;
void decode(__u8 version, bufferlist::const_iterator &iter);
void dump(Formatter *f) const;
};
struct SyncPayloadBase : public PayloadBase {
std::string sync_id;
SyncPayloadBase() : PayloadBase() {
}
SyncPayloadBase(uint64_t request_id, const std::string &sync_id)
: PayloadBase(request_id), sync_id(sync_id) {
}
void encode(bufferlist &bl) const;
void decode(__u8 version, bufferlist::const_iterator &iter);
void dump(Formatter *f) const;
};
struct SyncRequestPayload : public SyncPayloadBase {
static const NotifyOp NOTIFY_OP = NOTIFY_OP_SYNC_REQUEST;
SyncRequestPayload() : SyncPayloadBase() {
}
SyncRequestPayload(uint64_t request_id, const std::string &sync_id)
: SyncPayloadBase(request_id, sync_id) {
}
};
struct SyncStartPayload : public SyncPayloadBase {
static const NotifyOp NOTIFY_OP = NOTIFY_OP_SYNC_START;
SyncStartPayload() : SyncPayloadBase() {
}
SyncStartPayload(uint64_t request_id, const std::string &sync_id)
: SyncPayloadBase(request_id, sync_id) {
}
};
struct UnknownPayload {
static const NotifyOp NOTIFY_OP = static_cast<NotifyOp>(-1);
UnknownPayload() {
}
void encode(bufferlist &bl) const;
void decode(__u8 version, bufferlist::const_iterator &iter);
void dump(Formatter *f) const;
};
typedef boost::variant<ImageAcquirePayload,
ImageReleasePayload,
PeerImageRemovedPayload,
SyncRequestPayload,
SyncStartPayload,
UnknownPayload> Payload;
struct NotifyMessage {
NotifyMessage(const Payload &payload = UnknownPayload()) : payload(payload) {
}
Payload payload;
void encode(bufferlist& bl) const;
void decode(bufferlist::const_iterator& it);
void dump(Formatter *f) const;
static void generate_test_instances(std::list<NotifyMessage *> &o);
};
WRITE_CLASS_ENCODER(NotifyMessage);
std::ostream &operator<<(std::ostream &out, const NotifyOp &op);
struct NotifyAckPayload {
std::string instance_id;
uint64_t request_id;
int ret_val;
NotifyAckPayload() : request_id(0), ret_val(0) {
}
NotifyAckPayload(const std::string &instance_id, uint64_t request_id,
int ret_val)
: instance_id(instance_id), request_id(request_id), ret_val(ret_val) {
}
void encode(bufferlist &bl) const;
void decode(bufferlist::const_iterator& it);
void dump(Formatter *f) const;
};
WRITE_CLASS_ENCODER(NotifyAckPayload);
} // namespace instance_watcher
} // namespace mirror
} // namespace librbd
using rbd::mirror::instance_watcher::encode;
using rbd::mirror::instance_watcher::decode;
#endif // RBD_MIRROR_INSTANCE_WATCHER_TYPES_H
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