parameter_description_list api_generator::load_parameters(const fc::variants& json_parameter_descriptions)
{
parameter_description_list parameters;
for (const fc::variant& parameter_description_variant : json_parameter_descriptions)
{
fc::variant_object json_parameter_description = parameter_description_variant.get_object();
parameter_description parameter;
FC_ASSERT(json_parameter_description.contains("name"), "parameter is missing \"name\"");
parameter.name = json_parameter_description["name"].as_string();
try
{
FC_ASSERT(json_parameter_description.contains("description"), "parameter is missing \"description\"");
parameter.description = json_parameter_description["description"].as_string();
FC_ASSERT(json_parameter_description.contains("type"), "parameter is missing \"type\"");
parameter.type = lookup_type_mapping(json_parameter_description["type"].as_string());
if( json_parameter_description.contains( "prompt" ) )
parameter.prompt = json_parameter_description["prompt"].as_bool();
if (json_parameter_description.contains("default_value"))
parameter.default_value = json_parameter_description["default_value"];
if (json_parameter_description.contains("example"))
parameter.example = json_parameter_description["example"];
}
FC_RETHROW_EXCEPTIONS(error, "error processing parameter ${name}", ("name", parameter.name));
parameters.push_back(parameter);
}
return parameters;
}
char parseEscape( T& in )
{
if( in.peek() == '\\' )
{
try {
in.get();
switch( in.peek() )
{
case 't':
in.get();
return '\t';
case 'n':
in.get();
return '\n';
case 'r':
in.get();
return '\r';
case '\\':
in.get();
return '\\';
default:
return in.get();
}
} FC_RETHROW_EXCEPTIONS( info, "Stream ended with '\\'" );
}
FC_THROW_EXCEPTION( parse_error_exception, "Expected '\\'" );
}
void signed_transaction::sign( const fc::ecc::private_key& k )
{
try {
sigs.insert( k.sign_compact( digest() ) );
}
FC_RETHROW_EXCEPTIONS( warn, "error signing transaction", ("trx", *this ) );
}
void stcp_socket::close()
{
try
{
_sock.close();
}FC_RETHROW_EXCEPTIONS( warn, "error closing stcp socket" );
}
/**
* A price will reorder the asset types such that the
* asset type with the lower enum value is always the
* denominator. Therefore bts/usd and usd/bts will
* always result in a price measured in usd/bts because
* asset::bts < asset::usd.
*/
price operator / ( const asset& a, const asset& b )
{
try
{
if( a.asset_id == b.asset_id )
FC_CAPTURE_AND_THROW( asset_divide_by_self );
price p;
auto l = a; auto r = b;
if( l.asset_id < r.asset_id ) { std::swap(l,r); }
ilog( "${a} / ${b}", ("a",l)("b",r) );
if( r.amount == 0 )
FC_CAPTURE_AND_THROW( asset_divide_by_zero, (r) );
p.base_asset_id = r.asset_id;
p.quote_asset_id = l.asset_id;
fc::bigint bl = l.amount;
fc::bigint br = r.amount;
fc::bigint result = (bl * fc::bigint(BTS_PRICE_PRECISION)) / br;
p.ratio = result;
return p;
} FC_RETHROW_EXCEPTIONS( warn, "${a} / ${b}", ("a",a)("b",b) );
}
variants arrayFromStream( T& in )
{
variants ar;
try
{
if( in.peek() != '[' )
FC_THROW_EXCEPTION( parse_error_exception, "Expected '['" );
in.get();
skip_white_space(in);
while( in.peek() != ']' )
{
if( in.peek() == ',' )
{
in.get();
continue;
}
if( skip_white_space(in) ) continue;
ar.push_back( variant_from_stream<T, parser_type>(in) );
skip_white_space(in);
}
if( in.peek() != ']' )
FC_THROW_EXCEPTION( parse_error_exception, "Expected ']' after parsing ${variant}",
("variant", ar) );
in.get();
} FC_RETHROW_EXCEPTIONS( warn, "Attempting to parse array ${array}",
("array", ar ) );
return ar;
}
variants arrayFromStreamBase( T& in, std::function<variant(T&)>& get_value )
{
variants ar;
try
{
if( in.peek() != '[' )
FC_THROW_EXCEPTION( parse_error_exception, "Expected '['" );
in.get();
while( in.peek() != ']' )
{
if( in.peek() == ',' )
{
in.get();
continue;
}
if( skip_white_space(in) ) continue;
ar.push_back( get_value(in) );
}
if( in.peek() != ']' )
FC_THROW_EXCEPTION( parse_error_exception, "Expected ']' after parsing ${variant}",
("variant", ar) );
in.get();
} FC_RETHROW_EXCEPTIONS( warn, "Attempting to parse array ${array}",
("array", ar ) );
return ar;
}
/**
* A price will reorder the asset types such that the
* asset type with the lower enum value is always the
* denominator. Therefore bts/usd and usd/bts will
* always result in a price measured in usd/bts because
* asset::bts < asset::usd.
*/
price operator / ( const asset& a, const asset& b )
{
try
{
ilog( "${a} / ${b}", ("a",a)("b",b) );
price p;
auto l = a; auto r = b;
if( l.asset_id < r.asset_id ) { std::swap(l,r); }
ilog( "${a} / ${b}", ("a",l)("b",r) );
p.base_asset_id = r.asset_id;
p.quote_asset_id = l.asset_id;
//fc::uint128 bl(l.amount);
//fc::uint128 bl(r.amount);
// p.ratio = (bl* BTS_PRICE_PRECISION) / br;
fc::bigint bl = l.amount;
fc::bigint br = r.amount;
fc::bigint result = (bl * fc::bigint(BTS_PRICE_PRECISION)) / br;
p.ratio = result;
return p;
} FC_RETHROW_EXCEPTIONS( warn, "${a} / ${b}", ("a",a)("b",b) );
}
void tcp_socket::close() {
try {
if( is_open() )
{
my->_sock.close();
}
} FC_RETHROW_EXCEPTIONS( warn, "error closing tcp socket" );
}
void tcp_server::accept( tcp_socket& s )
{
try
{
FC_ASSERT( my != nullptr );
fc::asio::tcp::accept( my->_accept, s.my->_sock );
} FC_RETHROW_EXCEPTIONS( warn, "Unable to accept connection on socket." );
}
fc::ip::endpoint tcp_socket::remote_endpoint()const
{
try
{
auto rep = my->_sock.remote_endpoint();
return fc::ip::endpoint(rep.address().to_v4().to_ulong(), rep.port() );
}
FC_RETHROW_EXCEPTIONS( warn, "error getting socket's remote endpoint" );
}
fc::ip::endpoint tcp_socket::local_endpoint() const
{
try
{
auto boost_local_endpoint = my->_sock.local_endpoint();
return fc::ip::endpoint(boost_local_endpoint.address().to_v4().to_ulong(), boost_local_endpoint.port() );
}
FC_RETHROW_EXCEPTIONS( warn, "error getting socket's local endpoint" );
}
std::string tokenFromStream( T& in )
{
fc::stringstream token;
try
{
char c = in.peek();
while( true )
{
switch( c = in.peek() )
{
case '\\':
token << parseEscape( in );
break;
case '\t':
case ' ':
case ',':
case ':':
case '\0':
case '\n':
case '\x04':
in.get();
return token.str();
case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': case 'g': case 'h':
case 'i': case 'j': case 'k': case 'l': case 'm': case 'n': case 'o': case 'p':
case 'q': case 'r': case 's': case 't': case 'u': case 'v': case 'w': case 'x':
case 'y': case 'z':
case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': case 'G': case 'H':
case 'I': case 'J': case 'K': case 'L': case 'M': case 'N': case 'O': case 'P':
case 'Q': case 'R': case 'S': case 'T': case 'U': case 'V': case 'W': case 'X':
case 'Y': case 'Z':
case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7':
case '8': case '9':
case '_': case '-': case '.': case '+': case '/':
token << c;
in.get();
break;
default:
return token.str();
}
}
return token.str();
}
catch( const fc::eof_exception& eof )
{
return token.str();
}
catch (const std::ios_base::failure&)
{
return token.str();
}
FC_RETHROW_EXCEPTIONS( warn, "while parsing token '${token}'",
("token", token.str() ) );
}
/**
* Assuming a.type is either the numerator.type or denominator.type in
* the price equation, return the number of the other asset type that
* could be exchanged at price p.
*
* ie: p = 3 usd/bts & a = 4 bts then result = 12 usd
* ie: p = 3 usd/bts & a = 4 usd then result = 1.333 bts
*/
asset operator * ( const asset& a, const price& p )
{
try {
if( a.asset_id == p.base_asset_id )
{
fc::bigint ba( a.amount ); // 64.64
fc::bigint r( p.ratio ); // 64.64
auto amnt = ba * r; // 128.128
amnt /= BTS_PRICE_PRECISION; // 128.64
auto lg2 = amnt.log2();
if( lg2 >= 128 )
{
FC_THROW_EXCEPTION( addition_overflow, "overflow ${a} * ${p}", ("a",a)("p",p) );
}
asset rtn;
rtn.amount = amnt.to_int64();
rtn.asset_id = p.quote_asset_id;
ilog( "${a} * ${p} => ${rtn}", ("a", a)("p",p )("rtn",rtn) );
return rtn;
}
else if( a.asset_id == p.quote_asset_id )
{
fc::bigint amt( a.amount ); // 64.64
amt *= BTS_PRICE_PRECISION; //<<= 64; // 64.128
fc::bigint pri( p.ratio ); // 64.64
auto result = amt / pri; // 64.64
// ilog( "amt: ${amt} / ${pri}", ("amt",string(amt))("pri",string(pri) ) );
// ilog( "${r}", ("r",string(result) ) );
auto lg2 = result.log2();
if( lg2 >= 128 )
{
// wlog( "." );
FC_THROW_EXCEPTION( addition_overflow,
"overflow ${a} / ${p} = ${r} lg2 = ${l}",
("a",a)("p",p)("r", std::string(result) )("l",lg2) );
}
// result += 5000000000; // TODO: evaluate this rounding factor..
asset r;
r.amount = result.to_int64();
r.asset_id = p.base_asset_id;
ilog( "r.amount = ${r}", ("r",r.amount) );
ilog( "${a} * ${p} => ${rtn}", ("a", a)("p",p )("rtn",r) );
return r;
}
FC_THROW_EXCEPTION( asset_type_mismatch, "type mismatch multiplying asset ${a} by price ${p}",
("a",a)("p",p) );
} FC_RETHROW_EXCEPTIONS( warn, "type mismatch multiplying asset ${a} by price ${p}",
("a",a)("p",p) );
}
std::string stringFromStream( T& in )
{
try
{
char c = in.peek(), c2;
switch( c )
{
case '\'':
if( strict )
FC_THROW_EXCEPTION( parse_error_exception, "expected: '\"' at beginning of string, got '\''" );
// falls through
case '"':
return quoteStringFromStream<T, strict, true>( in );
case 'r':
if( strict )
FC_THROW_EXCEPTION( parse_error_exception, "raw strings not supported in strict mode" );
case 'R':
in.get();
c2 = in.peek();
switch( c2 )
{
case '"':
case '\'':
if( strict )
FC_THROW_EXCEPTION( parse_error_exception, "raw strings not supported in strict mode" );
return quoteStringFromStream<T, strict, false>( in );
default:
if( strict )
FC_THROW_EXCEPTION( parse_error_exception, "unquoted strings not supported in strict mode" );
return c+tokenFromStream( in );
}
break;
case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': case 'g': case 'h':
case 'i': case 'j': case 'k': case 'l': case 'm': case 'n': case 'o': case 'p':
case 'q': case 's': case 't': case 'u': case 'v': case 'w': case 'x':
case 'y': case 'z':
case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': case 'G': case 'H':
case 'I': case 'J': case 'K': case 'L': case 'M': case 'N': case 'O': case 'P':
case 'Q': case 'S': case 'T': case 'U': case 'V': case 'W': case 'X':
case 'Y': case 'Z':
case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7':
case '8': case '9':
case '_': case '-': case '.': case '+': case '/':
if( strict )
FC_THROW_EXCEPTION( parse_error_exception, "unquoted strings not supported in strict mode" );
return tokenFromStream( in );
default:
FC_THROW_EXCEPTION( parse_error_exception, "expected: string" );
}
} FC_RETHROW_EXCEPTIONS( warn, "while parsing string" );
return {};
}
void connection::connect( const fc::ip::endpoint& ep )
{
try {
// TODO: do we have to worry about multiple calls to connect?
my->sock = std::make_shared<stcp_socket>();
my->sock->connect_to(ep);
my->remote_ep = remote_endpoint();
ilog( " connected to ${ep}", ("ep", ep) );
my->_read_loop_complete = fc::async( [=](){ my->read_loop(); } );
} FC_RETHROW_EXCEPTIONS( warn, "error connecting to ${ep}", ("ep",ep) );
}
void tcp_server::listen( uint16_t port )
{
if( !my )
my = new impl;
try
{
my->_accept.bind(boost::asio::ip::tcp::endpoint(boost::asio::ip::address_v4(), port));
my->_accept.listen(256);
}
FC_RETHROW_EXCEPTIONS(warn, "error listening on socket");
}
void tcp_server::listen( const fc::ip::endpoint& ep )
{
if( !my )
my = new impl;
try
{
my->_accept.bind(boost::asio::ip::tcp::endpoint(boost::asio::ip::address_v4::from_string((string)ep.get_address()), ep.port()));
my->_accept.listen();
}
FC_RETHROW_EXCEPTIONS(warn, "error listening on socket");
}
/**
* Adds the owner to the required signature list
* Adds the balance to the trx balance sheet
*
* TODO: this input is also valid if it is 1 year old and an output exists
* paying 95% of the balance back to the owner.
*
* TODO: what if the source is an unvested market order... it means the
* proceeds of this trx are also 'unvested'. Perhaps we will have to
* propagate the vested state along with the trx, if any inputs are
* sourced from an unvested trx, the new trx is also 'unvested' until
* the most receint input is fully vested.
*/
void trx_validation_state::validate_signature( const meta_trx_input& in )
{
try {
auto cbs = in.output.as<claim_by_signature_output>();
ilog( "${cbs}", ("cbs",cbs));
required_sigs.insert( cbs.owner );
asset output_bal( in.output.amount, in.output.unit );
balance_sheet[(asset::type)in.output.unit].in += output_bal;
} FC_RETHROW_EXCEPTIONS( warn, "validating signature input ${i}", ("i",in) );
}
void connection::send( const message& m )
{
try {
fc::scoped_lock<fc::mutex> lock(my->write_lock);
size_t len = MAIL_PACKED_MESSAGE_HEADER + m.size;
len = 16*((len+15)/16); //pad the message we send to a multiple of 16 bytes
std::vector<char> tmp(len);
memcpy( tmp.data(), (char*)&m, MAIL_PACKED_MESSAGE_HEADER );
memcpy( tmp.data() + MAIL_PACKED_MESSAGE_HEADER, m.data.data(), m.size );
my->sock->write( tmp.data(), tmp.size() );
my->sock->flush();
} FC_RETHROW_EXCEPTIONS( warn, "unable to send message" );
}
variant_object objectFromStream( T& in, uint32_t depth )
{
depth++;
FC_ASSERT( depth <= JSON_MAX_RECURSION_DEPTH );
mutable_variant_object obj;
try
{
char c = in.peek();
if( c != '{' )
FC_THROW_EXCEPTION( parse_error_exception,
"Expected '{', but read '${char}'",
("char",string(&c, &c + 1)) );
in.get();
skip_white_space( in, depth );
while( in.peek() != '}' )
{
if( in.peek() == ',' )
{
in.get();
continue;
}
if( skip_white_space( in, depth ) ) continue;
string key = stringFromStream( in, depth );
skip_white_space( in, depth );
if( in.peek() != ':' )
{
FC_THROW_EXCEPTION( parse_error_exception, "Expected ':' after key \"${key}\"",
("key", key) );
}
in.get();
auto val = variant_from_stream<T, parser_type>( in, depth );
obj(std::move(key),std::move(val));
skip_white_space( in, depth );
}
if( in.peek() == '}' )
{
in.get();
return obj;
}
FC_THROW_EXCEPTION( parse_error_exception, "Expected '}' after ${variant}", ("variant", obj ) );
}
catch( const fc::eof_exception& e )
{
FC_THROW_EXCEPTION( parse_error_exception, "Unexpected EOF: ${e}", ("e", e.to_detail_string() ) );
}
catch( const std::ios_base::failure& e )
{
FC_THROW_EXCEPTION( parse_error_exception, "Unexpected EOF: ${e}", ("e", e.what() ) );
} FC_RETHROW_EXCEPTIONS( warn, "Error parsing object" );
}
void store( const Key& k, const Value& v, bool sync = false )
{ try {
FC_ASSERT( is_open(), "Database is not open!" );
ldb::Slice ks( (char*)&k, sizeof(k) );
auto vec = fc::raw::pack(v);
ldb::Slice vs( vec.data(), vec.size() );
auto status = _db->Put( sync ? _sync_options : _write_options, ks, vs );
if( !status.ok() )
{
FC_THROW_EXCEPTION( level_pod_map_failure, "database error: ${msg}", ("msg", status.ToString() ) );
}
} FC_RETHROW_EXCEPTIONS( warn, "error storing ${key} = ${value}", ("key",k)("value",v) ); }
void api_generator::load_method_descriptions(const fc::variants& method_descriptions)
{
for (const fc::variant& method_description_variant : method_descriptions)
{
fc::variant_object json_method_description = method_description_variant.get_object();
FC_ASSERT(json_method_description.contains("method_name"), "method entry missing \"method_name\"");
std::string method_name = json_method_description["method_name"].as_string();
FC_ASSERT(_registered_method_names.find(method_name) == _registered_method_names.end(),
"Error: multiple methods registered with the name ${name}", ("name", method_name));
_registered_method_names.insert(method_name);
try
{
method_description method;
method.name = method_name;
FC_ASSERT(json_method_description.contains("return_type"), "method entry missing \"return_type\"");
std::string return_type_name = json_method_description["return_type"].as_string();
method.return_type = lookup_type_mapping(return_type_name);
FC_ASSERT(json_method_description.contains("parameters"), "method entry missing \"parameters\"");
method.parameters = load_parameters(json_method_description["parameters"].get_array());
method.is_const = json_method_description.contains("is_const") &&
json_method_description["is_const"].as_bool();
FC_ASSERT(json_method_description.contains("prerequisites"), "method entry missing \"prerequisites\"");
method.prerequisites = load_prerequisites(json_method_description["prerequisites"]);
if (json_method_description.contains("aliases"))
{
method.aliases = json_method_description["aliases"].as<std::vector<std::string> >();
for (const std::string& alias : method.aliases)
{
FC_ASSERT(_registered_method_names.find(alias) == _registered_method_names.end(),
"Error: alias \"${alias}\" conflicts with an existing method or alias", ("alias", alias));
_registered_method_names.insert(alias);
}
}
if (json_method_description.contains("description"))
method.brief_description = json_method_description["description"].as_string();
if (json_method_description.contains("detailed_description"))
method.detailed_description = json_method_description["detailed_description"].as_string();
_methods.push_back(method);
}
FC_RETHROW_EXCEPTIONS(warn, "error encountered parsing method description for method \"${method_name}\"", ("method_name", method_name));
}
}
bool last( Key& k )
{ try {
FC_ASSERT( is_open(), "Database is not open!" );
std::unique_ptr<ldb::Iterator> it( _db->NewIterator( _iter_options ) );
FC_ASSERT( it != nullptr );
it->SeekToLast();
if( !it->Valid() )
{
return false;
}
FC_ASSERT( sizeof( Key) == it->key().size() );
k = *((Key*)it->key().data());
return true;
} FC_RETHROW_EXCEPTIONS( warn, "error reading last item from database" ); }
void store( const Key& k, const Value& v )
{
try
{
ldb::Slice ks( (char*)&k, sizeof(k) );
auto vec = fc::raw::pack(v);
ldb::Slice vs( vec.data(), vec.size() );
auto status = _db->Put( ldb::WriteOptions(), ks, vs );
if( !status.ok() )
{
FC_THROW_EXCEPTION( exception, "database error: ${msg}", ("msg", status.ToString() ) );
}
} FC_RETHROW_EXCEPTIONS( warn, "error storing ${key} = ${value}", ("key",k)("value",v) );
}
bool last( Key& k )
{ try {
FC_ASSERT( is_open(), "Database is not open!" );
std::unique_ptr<ldb::Iterator> it( _db->NewIterator( ldb::ReadOptions() ) );
FC_ASSERT( it != nullptr );
it->SeekToLast();
if( !it->Valid() )
{
return false;
}
fc::datastream<const char*> ds2( it->key().data(), it->key().size() );
fc::raw::unpack( ds2, k );
return true;
} FC_RETHROW_EXCEPTIONS( warn, "error reading last item from database" ); }
void remove( const Key& k, bool sync = false )
{ try {
FC_ASSERT( is_open(), "Database is not open!" );
ldb::Slice ks( (char*)&k, sizeof(k) );
auto status = _db->Delete( sync ? _sync_options : _write_options, ks );
if( status.IsNotFound() )
{
FC_THROW_EXCEPTION( fc::key_not_found_exception, "unable to find key ${key}", ("key",k) );
}
if( !status.ok() )
{
FC_THROW_EXCEPTION( level_pod_map_failure, "database error: ${msg}", ("msg", status.ToString() ) );
}
} FC_RETHROW_EXCEPTIONS( warn, "error removing ${key}", ("key",k) ); }
void message_oriented_connection_impl::send_message(const message& message_to_send)
{
VERIFY_CORRECT_THREAD();
#if 0 // this gets too verbose
#ifndef NDEBUG
fc::optional<fc::ip::endpoint> remote_endpoint;
if (_sock.get_socket().is_open())
remote_endpoint = _sock.get_socket().remote_endpoint();
struct scope_logger {
const fc::optional<fc::ip::endpoint>& endpoint;
scope_logger(const fc::optional<fc::ip::endpoint>& endpoint) : endpoint(endpoint) { dlog("entering message_oriented_connection::send_message() for peer ${endpoint}", ("endpoint", endpoint)); }
~scope_logger() { dlog("leaving message_oriented_connection::send_message() for peer ${endpoint}", ("endpoint", endpoint)); }
} send_message_scope_logger(remote_endpoint);
#endif
#endif
struct verify_no_send_in_progress {
bool& var;
verify_no_send_in_progress(bool& var) : var(var)
{
if (var)
elog("Error: two tasks are calling message_oriented_connection::send_message() at the same time");
assert(!var);
var = true;
}
~verify_no_send_in_progress() { var = false; }
} _verify_no_send_in_progress(_send_message_in_progress);
try
{
size_t size_of_message_and_header = sizeof(message_header) + message_to_send.size;
if( message_to_send.size > MAX_MESSAGE_SIZE )
elog("Trying to send a message larger than MAX_MESSAGE_SIZE. This probably won't work...");
//pad the message we send to a multiple of 16 bytes
size_t size_with_padding = 16 * ((size_of_message_and_header + 15) / 16);
std::unique_ptr<char[]> padded_message(new char[size_with_padding]);
memcpy(padded_message.get(), (char*)&message_to_send, sizeof(message_header));
memcpy(padded_message.get() + sizeof(message_header), message_to_send.data.data(), message_to_send.size );
char* paddingSpace = padded_message.get() + sizeof(message_header) + message_to_send.size;
size_t toClean = size_with_padding - size_of_message_and_header;
memset(paddingSpace, 0, toClean);
_sock.write(padded_message.get(), size_with_padding);
_sock.flush();
_bytes_sent += size_with_padding;
_last_message_sent_time = fc::time_point::now();
} FC_RETHROW_EXCEPTIONS( warn, "unable to send message" );
}
void remove( const Key& k, bool sync = false )
{ try {
FC_ASSERT( is_open(), "Database is not open!" );
std::vector<char> kslice = fc::raw::pack( k );
ldb::Slice ks( kslice.data(), kslice.size() );
auto status = _db->Delete( ldb::WriteOptions(), ks );
if( status.IsNotFound() )
{
FC_THROW_EXCEPTION( fc::key_not_found_exception, "unable to find key ${key}", ("key",k) );
}
if( !status.ok() )
{
FC_THROW_EXCEPTION( db_exception, "database error: ${msg}", ("msg", status.ToString() ) );
}
} FC_RETHROW_EXCEPTIONS( warn, "error removing ${key}", ("key",k) ); }
void store( const Key& k, const Value& v, bool sync = false )
{ try {
FC_ASSERT( is_open(), "Database is not open!" );
std::vector<char> kslice = fc::raw::pack( k );
ldb::Slice ks( kslice.data(), kslice.size() );
auto vec = fc::raw::pack(v);
ldb::Slice vs( vec.data(), vec.size() );
auto status = _db->Put( ldb::WriteOptions(), ks, vs );
if( !status.ok() )
{
FC_THROW_EXCEPTION( db_exception, "database error: ${msg}", ("msg", status.ToString() ) );
}
} FC_RETHROW_EXCEPTIONS( warn, "error storing ${key} = ${value}", ("key",k)("value",v) ); }