Files
hpcore/src/fbschema/p2pmsg_helpers.cpp
Ravidu Lashan 1238e96423 State synchronization logic (#67)
* Added flat buffer state message request

* Added state vote

* Added state to ledger history and did necessary changes

* Completed receiveing state request

* State read/write helpers.

* Added new fbs schema

* Added more state_store helper methods.

* Started processing response

* Fixed compile errors

* Added get file length.

* Handled state content response

* Statefs code cleanup and fixes.

* Completed response handling

* Completed changes in handling state response

* State sync integration fixes.

* Fuse mount waiting logic.

* Fixed state syncing issues

* state sync fixes

* fixes

* State sync fixes.

* Fixed fs entries retrieval issues.

* changed desync logic

* Added directory helper functions.

* Handled return statemetns from statefs

* Fixed state folder deletion.

* handled errors from statefs

* Working for small files

* Got state sync working.

* Removed cout.

* Fixed catering for stae issue

* Fixed block hash map flatbuf issue.

* Added expected hash

* Added helpers for expected hash comparison.

* Improved state req/resp awaiting logic.

* Fixes.

* Fixes.

* Block request ordering fix.

* Removed couts

* Closed non-closed file descriptors

* Minor fixes.

* Cluster create script changes.

* Fixed reset time off issue.
2019-12-13 10:20:41 +05:30

675 lines
27 KiB
C++

#include <flatbuffers/flatbuffers.h>
#include "../pchheader.hpp"
#include "../conf.hpp"
#include "../crypto.hpp"
#include "../util.hpp"
#include "../hplog.hpp"
#include "../p2p/p2p.hpp"
#include "p2pmsg_container_generated.h"
#include "p2pmsg_content_generated.h"
#include "common_helpers.hpp"
#include "p2pmsg_helpers.hpp"
namespace fbschema::p2pmsg
{
/**
* This section contains Flatbuffer message reading/writing helpers.
* These helpers are mainly used by peer_session_handler.
*
* All Flatbuffer peer messages are 'Container' messages. 'Container' message is a bucket
* which some common headers (version, singature etc..) and the message 'Content' (Proposal, NPL etc..).
*
* Therefore, when constructing peer messages, we have to first construct 'Content' message and then
* place the 'Content' inside a 'Conatiner. 'Content' and 'Container' messages are constructed using
* Flatbuffer builders.
*
* Reading is also 2 steps because of this. We have first interprit the 'Container' message from the
* received data and then interprit the 'Content' portion of it separately to read the actual content.
*/
//---Message validation and reading helpers---/
/**
* Verifies Conatiner message structure and outputs faltbuffer Container pointer to access the given buffer.
*
* @param container_ref A pointer reference to assign the pointer to the Container object.
* @param container_buf The buffer containing the data that should be validated and interpreted
* via the container pointer.
* @return 0 on successful verification. -1 for failure.
*/
int validate_and_extract_container(const Container **container_ref, std::string_view container_buf)
{
//Accessing message buffer
const uint8_t *container_buf_ptr = reinterpret_cast<const uint8_t *>(container_buf.data());
const size_t container_buf_size = container_buf.length();
//Defining Flatbuffer verifier (default max depth = 64, max_tables = 1000000,)
flatbuffers::Verifier container_verifier(container_buf_ptr, container_buf_size);
//Verify container message using flatbuffer verifier
if (!VerifyContainerBuffer(container_verifier))
{
LOG_DBG << "Flatbuffer verify: Bad peer message container.";
return -1;
}
//Get message container
const Container *container = GetContainer(container_buf_ptr);
//check protocol version of message whether it is greater than minimum supported protocol version.
const uint16_t version = container->version();
if (version < util::MIN_PEERMSG_VERSION)
{
LOG_DBG << "Peer message is from unsupported protocol version (" << version << ").";
return -1;
}
//check message timestamp.
const int64_t time_now = util::get_epoch_milliseconds();
if (container->timestamp() < (time_now - conf::cfg.roundtime * 4))
{
LOG_DBG << "Peer message is too old.";
return -1;
}
//Assign container and content out params.
*container_ref = container;
return 0;
}
/**
* Validates the container message signing keys to see if the message is from a trusted source (UNL).
* @return 0 on successful verification. -1 for failure.
*/
int validate_container_trust(const Container *container)
{
std::string_view msg_pubkey = flatbuff_bytes_to_sv(container->pubkey());
std::string_view msg_sig = flatbuff_bytes_to_sv(container->signature());
if (msg_pubkey.empty() || msg_sig.empty())
{
LOG_DBG << "Peer message key pair incomplete. Trust verification failed.";
return -1;
}
//validate if the message is not from a node of current node's unl list.
if (!conf::cfg.unl.count(std::string(msg_pubkey)))
{
LOG_DBG << "Peer message pubkey verification failed. Not in UNL.";
return -1;
}
//verify message signature.
//this is performed towards end since this is bit expensive
std::string_view msg_content = flatbuff_bytes_to_sv(container->content());
if (crypto::verify(msg_content, msg_sig, msg_pubkey) != 0)
{
LOG_DBG << "Peer message signature verification failed.";
return -1;
}
return 0;
}
/**
* Verifies the Content message structure and outputs faltbuffer Content pointer to access the given buffer.
*
* @param content_ref A pointer reference to assign the pointer to the Content object.
* @param content_ptr Pointer to the the buffer containing the data that should validated and interpreted
* via the container pointer.
* @param content_size Data buffer size.
* @return 0 on successful verification. -1 for failure.
*/
int validate_and_extract_content(const Content **content_ref, const uint8_t *content_ptr, const flatbuffers::uoffset_t content_size)
{
//Defining Flatbuffer verifier for message content verification.
//Since content is also serialised by using Flatbuffer we can verify it using Flatbuffer.
flatbuffers::Verifier content_verifier(content_ptr, content_size);
//verify content message using flatbuffer verifier.
if (!VerifyContainerBuffer(content_verifier))
{
LOG_DBG << "Flatbuffer verify: Bad content.";
return -1;
}
*content_ref = GetContent(content_ptr);
return 0;
}
/**
* Creates a non-unl proposal stuct from the given non-unl proposal message.
* @param The Flatbuffer non-unl poporal received from the peer.
* @return A non-unl proposal struct representing the message.
*/
const p2p::nonunl_proposal create_nonunl_proposal_from_msg(const NonUnl_Proposal_Message &msg, const uint64_t timestamp)
{
p2p::nonunl_proposal nup;
if (msg.usermessages())
nup.user_messages = flatbuf_usermsgsmap_to_usermsgsmap(msg.usermessages());
return nup;
}
/**
* Creates a history response stuct from the given histrory response message.
* @param msg Flatbuffer History response message received from the peer.
* @return A History response struct representing the message.
*/
const p2p::history_response create_history_response_from_msg(const History_Response_Message &msg)
{
p2p::history_response hr;
if (msg.hist_ledgers())
hr.hist_ledgers = flatbuf_historyledgermap_to_historyledgermap(msg.hist_ledgers());
if (msg.error())
hr.error = (p2p::LEDGER_RESPONSE_ERROR)msg.error();
return hr;
}
/**
* Creates a proposal stuct from the given proposal message.
* @param The Flatbuffer poposal received from the peer.
* @return A proposal struct representing the message.
*/
const p2p::proposal create_proposal_from_msg(const Proposal_Message &msg, const flatbuffers::Vector<uint8_t> *pubkey, const uint64_t timestamp, const flatbuffers::Vector<uint8_t> *lcl)
{
p2p::proposal p;
p.pubkey = flatbuff_bytes_to_sv(pubkey);
p.timestamp = timestamp;
p.time = msg.time();
p.stage = msg.stage();
p.lcl = flatbuff_bytes_to_sv(lcl);
p.curr_hash_state = flatbuff_bytes_to_sv(msg.curr_state_hash());
if (msg.users())
p.users = flatbuf_bytearrayvector_to_stringlist(msg.users());
if (msg.hash_inputs())
p.hash_inputs = flatbuf_bytearrayvector_to_stringlist(msg.hash_inputs());
if (msg.hash_outputs())
p.hash_outputs = flatbuf_bytearrayvector_to_stringlist(msg.hash_outputs());
return p;
}
/**
* Creates a history request struct from the given history request message.
* @param msg Flatbuffer History request message received from the peer.
* @return A History request struct representing the message.
*/
const p2p::history_request create_history_request_from_msg(const History_Request_Message &msg)
{
p2p::history_request hr;
if (msg.minimum_lcl())
hr.minimum_lcl = flatbuff_bytes_to_sv(msg.minimum_lcl());
if (msg.required_lcl())
hr.required_lcl = flatbuff_bytes_to_sv(msg.required_lcl());
return hr;
}
/**
* Creates a state request struct from the given state request message.
* @param msg Flatbuffer State request message received from the peer.
* @return A State request struct representing the message.
*/
const p2p::state_request create_state_request_from_msg(const State_Request_Message &msg)
{
p2p::state_request sr;
sr.block_id = msg.block_id();
sr.is_file = msg.is_file();
sr.parent_path = flatbuff_str_to_sv(msg.parent_path());
sr.expected_hash = flatbuff_bytes_to_hash(msg.expected_hash());
return sr;
}
/**
* Creates a block response struct from the given block response message.
* @param msg Flatbuffer block response message received from the peer.
* @return A Block response struct representing the message.
*/
const p2p::block_response create_block_response_from_msg(const Block_Response &msg)
{
p2p::block_response br;
br.path = flatbuff_str_to_sv(msg.path());
br.block_id = msg.block_id();
br.data = flatbuff_bytes_to_sv(msg.data());
return br;
}
//---Message creation helpers---//
void create_msg_from_nonunl_proposal(flatbuffers::FlatBufferBuilder &container_builder, const p2p::nonunl_proposal &nup)
{
flatbuffers::FlatBufferBuilder builder(1024);
const flatbuffers::Offset<NonUnl_Proposal_Message> nupmsg =
CreateNonUnl_Proposal_Message(
builder,
usermsgsmap_to_flatbuf_usermsgsmap(builder, nup.user_messages));
const flatbuffers::Offset<Content> message = CreateContent(builder, Message_NonUnl_Proposal_Message, nupmsg.Union());
builder.Finish(message); // Finished building message content to get serialised content.
// Now that we have built the content message,
// we need to sign it and place it inside a container message.
create_containermsg_from_content(container_builder, builder, nullptr, false);
}
/**
* Create proposal peer message from the given proposal struct.
* @param container_builder Flatbuffer builder for the container message.
* @param p The proposal struct to be placed in the container message.
*/
void create_msg_from_proposal(flatbuffers::FlatBufferBuilder &container_builder, const p2p::proposal &p)
{
// todo:get a average propsal message size and allocate content builder based on that.
flatbuffers::FlatBufferBuilder builder(1024);
const flatbuffers::Offset<Proposal_Message> proposal =
CreateProposal_Message(
builder,
p.stage,
p.time,
stringlist_to_flatbuf_bytearrayvector(builder, p.users),
stringlist_to_flatbuf_bytearrayvector(builder, p.hash_inputs),
stringlist_to_flatbuf_bytearrayvector(builder, p.hash_outputs),
sv_to_flatbuff_bytes(builder, p.curr_hash_state));
const flatbuffers::Offset<Content> message = CreateContent(builder, Message_Proposal_Message, proposal.Union());
builder.Finish(message); // Finished building message content to get serialised content.
// Now that we have built the content message,
// we need to sign it and place it inside a container message.
create_containermsg_from_content(container_builder, builder, p.lcl, true);
}
/**
* Ctreat npl message from the given npl output srtuct.
* @param container_builder Flatbuffer builder for the container message.
* @param n The npl struct to be placed in the container message.
* @param lcl Lcl value to be passed in the container message.
*/
void create_msg_from_npl_output(flatbuffers::FlatBufferBuilder &container_builder, const p2p::npl_message &n, std::string_view lcl)
{
flatbuffers::FlatBufferBuilder builder(1024);
const flatbuffers::Offset<Npl_Message> npl =
CreateNpl_Message(
builder,
sv_to_flatbuff_bytes(builder, n.data));
const flatbuffers::Offset<Content> message = CreateContent(builder, Message_Npl_Message, npl.Union());
builder.Finish(message); // Finished building message content to get serialised content.
// Now that we have built the content message,
// we need to sign it and place it inside a container message.
create_containermsg_from_content(container_builder, builder, lcl, true);
}
/**
* Create history request message from the given history request struct.
* @param container_builder Flatbuffer builder for the container message.
* @param hr The History request struct to be placed in the container message.
*/
void create_msg_from_history_request(flatbuffers::FlatBufferBuilder &container_builder, const p2p::history_request &hr)
{
flatbuffers::FlatBufferBuilder builder(1024);
flatbuffers::Offset<History_Request_Message> hrmsg =
CreateHistory_Request_Message(
builder,
sv_to_flatbuff_bytes(builder, hr.minimum_lcl),
sv_to_flatbuff_bytes(builder, hr.required_lcl));
flatbuffers::Offset<Content> message = CreateContent(builder, Message_History_Request_Message, hrmsg.Union());
builder.Finish(message); // Finished building message content to get serialised content.
// Now that we have built the content message,
// we need to sign it and place it inside a container message.
create_containermsg_from_content(container_builder, builder, nullptr, true);
}
/**
* Create history response message from the given history response struct.
* @param container_builder Flatbuffer builder for the container message.
* @param hr The History response struct to be placed in the container message.
*/
void create_msg_from_history_response(flatbuffers::FlatBufferBuilder &container_builder, const p2p::history_response &hr)
{
flatbuffers::FlatBufferBuilder builder(1024);
flatbuffers::Offset<History_Response_Message> hrmsg =
CreateHistory_Response_Message(
builder,
historyledgermap_to_flatbuf_historyledgermap(builder, hr.hist_ledgers),
(Ledger_Response_Error)hr.error);
flatbuffers::Offset<Content> message = CreateContent(builder, Message_History_Response_Message, hrmsg.Union());
builder.Finish(message); // Finished building message content to get serialised content.
// Now that we have built the content message,
// we need to sign it and place it inside a container message.
create_containermsg_from_content(container_builder, builder, nullptr, true);
}
/**
* Create state request message from the given state request struct.
* @param container_builder Flatbuffer builder for the container message.
* @param sr The state request struct to be placed in the container message.
*/
void create_msg_from_state_request(flatbuffers::FlatBufferBuilder &container_builder, const p2p::state_request &hr, std::string_view lcl)
{
flatbuffers::FlatBufferBuilder builder(1024);
flatbuffers::Offset<State_Request_Message> srmsg =
CreateState_Request_Message(
builder,
sv_to_flatbuff_str(builder, hr.parent_path),
hr.is_file,
hr.block_id,
hash_to_flatbuff_bytes(builder, hr.expected_hash));
flatbuffers::Offset<Content> message = CreateContent(builder, Message_State_Request_Message, srmsg.Union());
builder.Finish(message); // Finished building message content to get serialised content.
// Now that we have built the content message,
// we need to sign it and place it inside a container message.
create_containermsg_from_content(container_builder, builder, lcl, true);
}
/**
* Create content response message from the given content response.
* @param container_builder Flatbuffer builder for the container message.
* @param path The path of the directory.
* @param fs_entries File or directory entries in the given parent path.
* @param expected_hash The exptected hash of the requested path.
* @param lcl Lcl to be include in the container msg.
*/
void create_msg_from_fsentry_response(flatbuffers::FlatBufferBuilder &container_builder, const std::string_view path, std::unordered_map<std::string, p2p::state_fs_hash_entry> &fs_entries, hasher::B2H expected_hash, std::string_view lcl)
{
flatbuffers::FlatBufferBuilder builder(1024);
const flatbuffers::Offset<Fs_Entry_Response> resp =
CreateFs_Entry_Response(
builder,
sv_to_flatbuff_str(builder, path),
statefshashentry_to_flatbuff_statefshashentry(builder, fs_entries));
const flatbuffers::Offset<State_Response_Message> st_resp = CreateState_Response_Message(
builder, State_Response_Fs_Entry_Response,
resp.Union(),
hash_to_flatbuff_bytes(builder, expected_hash));
flatbuffers::Offset<Content> message = CreateContent(builder, Message_State_Response_Message, st_resp.Union());
builder.Finish(message); // Finished building message content to get serialised content.
// Now that we have built the content message,
// we need to sign it and place it inside a container message.
create_containermsg_from_content(container_builder, builder, lcl, true);
}
/**
* Create content response message from the given content response.
* @param container_builder Flatbuffer builder for the container message.
* @param path The path of the directory.
* @param hashmap Hashmap of the file
* @param lcl Lcl to be include in the container msg.
*/
void create_msg_from_filehashmap_response(flatbuffers::FlatBufferBuilder &container_builder, std::string_view path, std::vector<uint8_t> &hashmap, std::size_t file_length, hasher::B2H expected_hash, std::string_view lcl)
{
// todo:get a average propsal message size and allocate content builder based on that.
flatbuffers::FlatBufferBuilder builder(1024);
std::string_view hashmap_sv(reinterpret_cast<const char *>(hashmap.data()), hashmap.size());
const flatbuffers::Offset<File_HashMap_Response> resp =
CreateFile_HashMap_Response(
builder,
sv_to_flatbuff_str(builder, path),
file_length,
sv_to_flatbuff_bytes(builder, hashmap_sv));
const flatbuffers::Offset<State_Response_Message> st_resp = CreateState_Response_Message(
builder,
State_Response_File_HashMap_Response,
resp.Union(),
hash_to_flatbuff_bytes(builder, expected_hash));
flatbuffers::Offset<Content> message = CreateContent(builder, Message_State_Response_Message, st_resp.Union());
builder.Finish(message); // Finished building message content to get serialised content.
// Now that we have built the content message,
// we need to sign it and place it inside a container message.
create_containermsg_from_content(container_builder, builder, lcl, true);
}
/**
* Create content response message from the given content response.
* @param container_builder Flatbuffer builder for the container message.
* @param block_resp Block response struct to place in the message
* @param lcl Lcl to be include in the container message.
*/
void create_msg_from_block_response(flatbuffers::FlatBufferBuilder &container_builder, p2p::block_response &block_resp, std::string_view lcl)
{
// todo:get a average propsal message size and allocate content builder based on that.
flatbuffers::FlatBufferBuilder builder(1024);
const flatbuffers::Offset<Block_Response> resp =
CreateBlock_Response(
builder,
sv_to_flatbuff_str(builder, block_resp.path),
block_resp.block_id,
sv_to_flatbuff_bytes(builder, block_resp.data));
const flatbuffers::Offset<State_Response_Message> st_resp = CreateState_Response_Message(
builder,
State_Response_Block_Response,
resp.Union(),
hash_to_flatbuff_bytes(builder, block_resp.hash));
flatbuffers::Offset<Content> message = CreateContent(builder, Message_State_Response_Message, st_resp.Union());
builder.Finish(message); // Finished building message content to get serialised content.
// Now that we have built the content message,
// we need to sign it and place it inside a container message.
create_containermsg_from_content(container_builder, builder, lcl, true);
}
void create_msg_from_state_error_response(flatbuffers::FlatBufferBuilder &container_builder, std::string_view lcl)
{
// todo:get a average propsal message size and allocate content builder based on that.
flatbuffers::FlatBufferBuilder builder(1024);
const flatbuffers::Offset<State_Response_Message> st_resp = CreateState_Response_Message(builder, State_Response_NONE, 0, true);
flatbuffers::Offset<Content> message = CreateContent(builder, Message_State_Response_Message, st_resp.Union());
builder.Finish(message); // Finished building message content to get serialised content.
// Now that we have built the content message,
// we need to sign it and place it inside a container message.
create_containermsg_from_content(container_builder, builder, lcl, true);
}
/**
* Creates a Flatbuffer container message from the given Content message.
* @param container_builder The Flatbuffer builder to which the final container message should be written to.
* @param content_builder The Flatbuffer builder containing the content message that should be placed
* inside the container message.
* @param sign Whether to sign the message content.
*/
void create_containermsg_from_content(
flatbuffers::FlatBufferBuilder &container_builder, const flatbuffers::FlatBufferBuilder &content_builder, std::string_view lcl, const bool sign)
{
const uint8_t *content_buf = content_builder.GetBufferPointer();
const flatbuffers::uoffset_t content_size = content_builder.GetSize();
// Create container message content from serialised content from previous step.
const flatbuffers::Offset<flatbuffers::Vector<uint8_t>> content = container_builder.CreateVector(content_buf, content_size);
flatbuffers::Offset<flatbuffers::Vector<uint8_t>> pubkey_offset = 0;
flatbuffers::Offset<flatbuffers::Vector<uint8_t>> sig_offset = 0;
flatbuffers::Offset<flatbuffers::Vector<uint8_t>> lcl_offset = 0;
if (sign)
{
// Sign message content with this node's private key.
std::string_view content_to_sign(reinterpret_cast<const char *>(content_buf), content_size);
sig_offset = sv_to_flatbuff_bytes(container_builder, crypto::sign(content_to_sign, conf::cfg.seckey));
pubkey_offset = sv_to_flatbuff_bytes(container_builder, conf::cfg.pubkey);
}
if (!lcl.empty())
lcl_offset = sv_to_flatbuff_bytes(container_builder, lcl);
const flatbuffers::Offset<Container> container_message = CreateContainer(
container_builder,
util::PEERMSG_VERSION,
util::get_epoch_milliseconds(),
pubkey_offset,
lcl_offset,
sig_offset,
content);
// Finish building message container to get serialised message.
container_builder.Finish(container_message);
}
//---Conversion helpers from flatbuffers data types to std data types---//
const std::unordered_map<std::string, const std::list<usr::user_submitted_message>>
flatbuf_usermsgsmap_to_usermsgsmap(const flatbuffers::Vector<flatbuffers::Offset<UserSubmittedMessageGroup>> *fbvec)
{
std::unordered_map<std::string, const std::list<usr::user_submitted_message>> map;
map.reserve(fbvec->size());
for (const UserSubmittedMessageGroup *group : *fbvec)
{
std::list<usr::user_submitted_message> msglist;
for (const auto msg : *group->messages())
{
msglist.push_back(usr::user_submitted_message(
flatbuff_bytes_to_sv(msg->content()),
flatbuff_bytes_to_sv(msg->signature())));
}
map.emplace(flatbuff_bytes_to_sv(group->pubkey()), std::move(msglist));
}
return map;
}
//---Conversion helpers from std data types to flatbuffers data types---//
//---These are used in constructing Flatbuffer messages using builders---//
const flatbuffers::Offset<flatbuffers::Vector<flatbuffers::Offset<UserSubmittedMessageGroup>>>
usermsgsmap_to_flatbuf_usermsgsmap(flatbuffers::FlatBufferBuilder &builder, const std::unordered_map<std::string, const std::list<usr::user_submitted_message>> &map)
{
std::vector<flatbuffers::Offset<UserSubmittedMessageGroup>> fbvec;
fbvec.reserve(map.size());
for (const auto &[pubkey, msglist] : map)
{
std::vector<flatbuffers::Offset<UserSubmittedMessage>> fbmsgsvec;
for (const usr::user_submitted_message &msg : msglist)
{
fbmsgsvec.push_back(CreateUserSubmittedMessage(
builder,
sv_to_flatbuff_bytes(builder, msg.content),
sv_to_flatbuff_bytes(builder, msg.sig)));
}
fbvec.push_back(CreateUserSubmittedMessageGroup(
builder,
sv_to_flatbuff_bytes(builder, pubkey),
builder.CreateVector(fbmsgsvec)));
}
return builder.CreateVector(fbvec);
}
const std::map<uint64_t, const p2p::history_ledger>
flatbuf_historyledgermap_to_historyledgermap(const flatbuffers::Vector<flatbuffers::Offset<HistoryLedgerPair>> *fbvec)
{
std::map<uint64_t, const p2p::history_ledger> map;
for (const HistoryLedgerPair *pair : *fbvec)
{
std::list<usr::user_submitted_message> msglist;
p2p::history_ledger ledger;
ledger.lcl = flatbuff_bytes_to_sv(pair->ledger()->lcl());
auto raw = pair->ledger()->raw_ledger();
ledger.raw_ledger = std::vector<uint8_t>(raw->begin(), raw->end());
map.emplace(pair->seq_no(), std::move(ledger));
}
return map;
}
const flatbuffers::Offset<flatbuffers::Vector<flatbuffers::Offset<HistoryLedgerPair>>>
historyledgermap_to_flatbuf_historyledgermap(flatbuffers::FlatBufferBuilder &builder, const std::map<uint64_t, const p2p::history_ledger> &map)
{
std::vector<flatbuffers::Offset<HistoryLedgerPair>> fbvec;
fbvec.reserve(map.size());
for (auto const &[seq_no, ledger] : map)
{
flatbuffers::Offset<HistoryLedger> history_ledger = CreateHistoryLedger(
builder,
sv_to_flatbuff_bytes(builder, ledger.state),
sv_to_flatbuff_bytes(builder, ledger.lcl),
builder.CreateVector(ledger.raw_ledger));
fbvec.push_back(CreateHistoryLedgerPair(
builder,
seq_no,
history_ledger));
}
return builder.CreateVector(fbvec);
}
void flatbuf_statefshashentry_to_statefshashentry(std::unordered_map<std::string, p2p::state_fs_hash_entry> &fs_entries, const flatbuffers::Vector<flatbuffers::Offset<State_FS_Hash_Entry>> *fhashes)
{
for (const State_FS_Hash_Entry *f_hash : *fhashes)
{
p2p::state_fs_hash_entry h;
h.is_file = f_hash->is_file();
h.hash = flatbuff_bytes_to_hash(f_hash->hash());
fs_entries.emplace(flatbuff_str_to_sv(f_hash->path()), std::move(h));
}
}
flatbuffers::Offset<flatbuffers::Vector<flatbuffers::Offset<State_FS_Hash_Entry>>>
statefshashentry_to_flatbuff_statefshashentry(flatbuffers::FlatBufferBuilder &builder, std::unordered_map<std::string, p2p::state_fs_hash_entry> &fs_entries)
{
std::vector<flatbuffers::Offset<State_FS_Hash_Entry>> fbvec;
fbvec.reserve(fs_entries.size());
for (auto const &[path, fs_entry] : fs_entries)
{
flatbuffers::Offset<State_FS_Hash_Entry> state_fs_entry = CreateState_FS_Hash_Entry(
builder,
sv_to_flatbuff_str(builder, path),
fs_entry.is_file,
hash_to_flatbuff_bytes(builder, fs_entry.hash));
fbvec.push_back(state_fs_entry);
}
return builder.CreateVector(fbvec);
}
} // namespace fbschema::p2pmsg