Remove file write operation
This commit is contained in:
Vikram Rajkumar
parent
1e2fafe9c3
commit
9b3220f13a
7 changed files with 8 additions and 230 deletions
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@ -23,7 +23,6 @@
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#include <graphene/chain/block_summary_object.hpp>
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#include <graphene/chain/bond_object.hpp>
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#include <graphene/chain/delegate_object.hpp>
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#include <graphene/chain/file_object.hpp>
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#include <graphene/chain/global_property_object.hpp>
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#include <graphene/chain/key_object.hpp>
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#include <graphene/chain/limit_order_object.hpp>
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@ -121,7 +120,6 @@ void database::initialize_indexes()
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add_index< primary_index<withdraw_permission_index > >();
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add_index< primary_index<bond_index > >();
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add_index< primary_index<bond_offer_index > >();
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add_index< primary_index<file_object_index> >();
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add_index< primary_index<simple_index<vesting_balance_object> > >();
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add_index< primary_index<worker_index> >();
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@ -1,117 +0,0 @@
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/*
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* Copyright (c) 2015, Cryptonomex, Inc.
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* All rights reserved.
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*
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* This source code is provided for evaluation in private test networks only, until September 8, 2015. After this date, this license expires and
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* the code may not be used, modified or distributed for any purpose. Redistribution and use in source and binary forms, with or without modification,
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* are permitted until September 8, 2015, provided that the following conditions are met:
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*
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* 1. The code and/or derivative works are used only for private test networks consisting of no more than 10 P2P nodes.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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namespace graphene { namespace chain {
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/**
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* @brief provides for persistant storage of arbitrary data
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*
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* Smart contracts need data to be stored persistantly that can be shared with
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* other smart contracts. There is a cost associated with storing data, especially if
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* that data will be kept in RAM.
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*
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* File objects allow smart contracts to interact with persistant storage much like
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* traditional programs interact with files on disk. The cost of accessing a file
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* object to modify it is much higher than the cost to simply read it because the
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* the database must make a backup of the file for the undo history in the event
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* of a blockchain reorganization or failure in evaluation. For this reason files
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* are limited to 2^16 bytes and smart contracts will have to use multiple files if
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* they need to store additional data.
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*
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* Every file has an automatic expiration date at which point in time it will be
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* deleted unless a fee is paid to extend its life time.
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*
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* The contents of all files are public, but not to scripts. A smart contract attempting
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* to access the contents of a file must have permission to read the file. The purpose
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* of this restriction is to help users monetize the trust associated with publishing
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* data. Anyone could re-publish the data under a new file, but the trust in the
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* quality of the data would not be the same as the original file.
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*/
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class file_object : public graphene::db::annotated_object<file_object>
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{
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public:
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static const uint8_t space_id = protocol_ids;
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static const uint8_t type_id = file_object_type;
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/**
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* @brief sets bits that control the permissions granted to smart contracts regarding this data.
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*/
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enum permision_flags
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{
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owner_read = 0x01,
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owner_write = 0x02,
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group_read = 0x04,
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group_write = 0x08,
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all_read = 0x10,
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execute = 0x20 ///< set if data contains virtual machine instructions
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};
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/**
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* The owner can access this file based upon the @ref permissions flags
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*
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* @note - if the owner removes write permission from himself then the file
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* will be imutable thereafter.
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*/
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account_id_type owner;
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/** any account that has been white listed by this group can read/write
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* @ref data based upon the @ref permissions flags.
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*/
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account_id_type group;
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/**
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* Bits set according to @ref permission_flags
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*/
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uint8_t permissions = owner_read | owner_write | all_read;
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/**
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* Files consume memory and thus are cleaned up unless a fee is paid to
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* keep them alive.
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*/
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time_point_sec expiration;
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/**
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* The maximum data size for a file is 2^16 bytes so that the
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* undo history doesn't have to backup larger files. If a smart contract
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* requires more data then it can create more file objects.
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*/
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vector<char> data;
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};
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struct by_expiration;
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struct by_owner;
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struct by_group;
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/**
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* @ingroup object_index
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*/
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typedef multi_index_container<
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file_object,
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indexed_by<
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hashed_unique< tag<by_id>, member< object, object_id_type, &object::id > >,
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hashed_non_unique< tag<by_owner>, member< file_object, account_id_type, &file_object::owner > >,
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hashed_non_unique< tag<by_group>, member< file_object, account_id_type, &file_object::group > >,
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ordered_non_unique< tag<by_expiration>, member<file_object, time_point_sec, &file_object::expiration> >
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>
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> file_object_multi_index_type;
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typedef generic_index<file_object, file_object_multi_index_type> file_object_index;
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} }
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FC_REFLECT_ENUM( graphene::chain::file_object::permision_flags, (owner_read)(owner_write)(group_read)(group_write)(all_read)(execute) )
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FC_REFLECT_DERIVED( graphene::chain::file_object, (graphene::db::object), (owner)(group)(permissions)(expiration)(data) )
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@ -1248,81 +1248,6 @@ namespace graphene { namespace chain {
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}
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};
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/**
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* @brief create/update the contents of a file.
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*
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* Any account may pay a fee and write no data to extend the lease seconds
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* on a file.
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*
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* If the file size increasees, the current lease_seconds will be adjusted downward to maintain
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* the same byte-days-leased. Then any new leased seconds will be added based upon the
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* new file size.
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*
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* @see file_object
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*/
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struct file_write_operation
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{
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public:
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/**
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* The fee charges is proportional to @ref file_size * @ref lease_seconds
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*/
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asset fee;
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/**
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* THe account that is paying the update fee
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*/
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account_id_type payer;
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/** file_id 0 indicates a new file should be created */
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file_id_type file_id;
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/** may read/write accoding to flags, write permission is required to change owner/group/flags */
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account_id_type owner;
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/** may read/write according fo flags, but may not update flags or owner */
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account_id_type group;
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/**
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* Must be less than or equal to 0x2f
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*/
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uint8_t flags = 0;
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/**
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* If the file doesn't exist, it will be intialized to file_size with 0
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* before writing data.
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*
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* @pre data.size() + offset <= 2^16
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*/
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uint16_t offset = 0;
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vector<char> data;
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/**
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* The length of time to extend the lease on the file, must be less
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* than 10 years.
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*/
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uint32_t lease_seconds = 0;
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/**
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* File size must be greater than 0
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*/
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uint16_t file_size = 0;
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/**
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* If file_id is not 0, then precondition checksum verifies that
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* the file contents are as expected prior to writing data.
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*/
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optional<checksum_type> precondition_checksum;
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account_id_type fee_payer()const { return payer; }
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void get_required_auth(flat_set<account_id_type>& active_auth_set, flat_set<account_id_type>&)const { active_auth_set.insert(fee_payer()); }
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void validate()const;
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share_type calculate_fee( const fee_schedule_type& k )const;
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void get_balance_delta( balance_accumulator& acc, const operation_result& result = asset())const
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{
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acc.adjust( fee_payer(), -fee );
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}
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};
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/**
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* @ingroup operations
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*
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@ -1617,7 +1542,6 @@ namespace graphene { namespace chain {
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withdraw_permission_delete_operation,
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fill_order_operation,
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global_parameters_update_operation,
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file_write_operation,
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vesting_balance_create_operation,
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vesting_balance_withdraw_operation,
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bond_create_offer_operation,
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@ -1852,8 +1776,6 @@ FC_REFLECT( graphene::chain::withdraw_permission_claim_operation, (fee)(withdraw
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FC_REFLECT( graphene::chain::withdraw_permission_delete_operation, (fee)(withdraw_from_account)(authorized_account)
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(withdrawal_permission) )
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FC_REFLECT( graphene::chain::file_write_operation, (fee)(payer)(file_id)(owner)(group)(flags)(offset)(data)(lease_seconds)(file_size)(precondition_checksum) )
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FC_REFLECT( graphene::chain::bond_create_offer_operation, (fee)(creator)(offer_to_borrow)(amount)(min_match)(collateral_rate)(min_loan_period_sec)(loan_period_sec)(interest_apr) )
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FC_REFLECT( graphene::chain::bond_cancel_offer_operation, (fee)(creator)(offer_id)(refund) )
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FC_REFLECT( graphene::chain::bond_accept_offer_operation, (fee)(claimer)(lender)(borrower)(offer_id)(amount_borrowed)(amount_collateral) )
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@ -116,7 +116,6 @@ namespace graphene { namespace chain {
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withdraw_permission_object_type,
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bond_offer_object_type,
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bond_object_type,
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file_object_type,
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vesting_balance_object_type,
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worker_object_type,
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OBJECT_TYPE_COUNT ///< Sentry value which contains the number of different object types
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@ -163,7 +162,6 @@ namespace graphene { namespace chain {
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class withdraw_permission_object;
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class bond_object;
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class bond_offer_object;
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class file_object;
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class vesting_balance_object;
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class witness_schedule_object;
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class worker_object;
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@ -183,7 +181,6 @@ namespace graphene { namespace chain {
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typedef object_id< protocol_ids, withdraw_permission_object_type,withdraw_permission_object> withdraw_permission_id_type;
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typedef object_id< protocol_ids, bond_offer_object_type, bond_offer_object> bond_offer_id_type;
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typedef object_id< protocol_ids, bond_object_type, bond_object> bond_id_type;
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typedef object_id< protocol_ids, file_object_type, file_object> file_id_type;
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typedef object_id< protocol_ids, vesting_balance_object_type, vesting_balance_object> vesting_balance_id_type;
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typedef object_id< protocol_ids, worker_object_type, worker_object> worker_id_type;
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@ -386,7 +383,6 @@ namespace graphene { namespace chain {
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uint32_t cancel_bond_offer_fee;
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uint32_t accept_bond_offer_fee;
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uint32_t claim_bond_collateral_fee;
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uint32_t file_storage_fee_per_day; ///< the cost of leasing a file with 2^16 bytes for 1 day
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uint32_t vesting_balance_create_fee;
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uint32_t vesting_balance_withdraw_fee;
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uint32_t global_settle_fee;
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@ -509,7 +505,6 @@ FC_REFLECT_ENUM( graphene::chain::object_type,
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(withdraw_permission_object_type)
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(bond_offer_object_type)
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(bond_object_type)
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(file_object_type)
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(vesting_balance_object_type)
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(worker_object_type)
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(OBJECT_TYPE_COUNT)
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@ -568,7 +563,6 @@ FC_REFLECT( graphene::chain::fee_schedule_type,
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(cancel_bond_offer_fee)
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(accept_bond_offer_fee)
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(claim_bond_collateral_fee)
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(file_storage_fee_per_day)
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(vesting_balance_create_fee)
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(vesting_balance_withdraw_fee)
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(global_settle_fee)
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@ -617,7 +611,6 @@ FC_REFLECT_TYPENAME( graphene::chain::operation_history_id_type )
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FC_REFLECT_TYPENAME( graphene::chain::withdraw_permission_id_type )
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FC_REFLECT_TYPENAME( graphene::chain::bond_offer_id_type )
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FC_REFLECT_TYPENAME( graphene::chain::bond_id_type )
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FC_REFLECT_TYPENAME( graphene::chain::file_id_type )
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FC_REFLECT_TYPENAME( graphene::chain::vesting_balance_id_type )
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FC_REFLECT_TYPENAME( graphene::chain::worker_id_type )
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FC_REFLECT_TYPENAME( graphene::chain::relative_key_id_type )
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@ -717,20 +717,6 @@ void asset_update_feed_producers_operation::validate() const
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{
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FC_ASSERT( fee.amount >= 0 );
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}
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void file_write_operation::validate()const
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{
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FC_ASSERT( uint32_t(offset) + data.size() <= file_size );
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FC_ASSERT( flags <= 0x2f );
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FC_ASSERT( file_size > 0 );
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/** less than 10 years to prevent overflow of 64 bit numbers in the value*lease_seconds*file_size calculation */
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FC_ASSERT( lease_seconds < 60*60*24*365*10 );
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}
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share_type file_write_operation::calculate_fee( const fee_schedule_type& k )const
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{
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return ((((k.file_storage_fee_per_day * lease_seconds)/(60*60*24))*file_size)/0xff) + ((data.size() * k.data_fee)/1024);
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}
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void vesting_balance_create_operation::get_required_auth(flat_set<account_id_type>& active_auth_set, flat_set<account_id_type>&)const
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{
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@ -173,9 +173,6 @@ struct operation_get_impacted_accounts
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}
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void operator()( const asset_create_operation& o )const { }
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void operator()( const file_write_operation& o )const {
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_impacted.insert( o.owner );
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}
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void operator()( const asset_update_operation& o )const {
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if( o.new_issuer )
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@ -18,7 +18,6 @@
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#include <graphene/chain/operations.hpp>
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#include <graphene/chain/bond_object.hpp>
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#include <graphene/chain/vesting_balance_object.hpp>
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#include <graphene/chain/file_object.hpp>
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#include <graphene/chain/withdraw_permission_object.hpp>
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#include <graphene/chain/proposal_object.hpp>
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#include <graphene/chain/witness_object.hpp>
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@ -69,7 +68,7 @@ string remove_namespace( string str )
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template<typename T>
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void generate_serializer();
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template<typename T>
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template<typename T>
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void register_serializer();
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@ -96,7 +95,7 @@ struct js_name<fc::array<T,N>>
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};
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template<size_t N> struct js_name<fc::array<char,N>> { static std::string name(){ return "bytes "+ fc::to_string(N); }; };
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template<size_t N> struct js_name<fc::array<uint8_t,N>> { static std::string name(){ return "bytes "+ fc::to_string(N); }; };
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template<typename T> struct js_name< fc::optional<T> > { static std::string name(){ return "optional " + js_name<T>::name(); } };
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template<typename T> struct js_name< fc::optional<T> > { static std::string name(){ return "optional " + js_name<T>::name(); } };
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template<> struct js_name< object_id_type > { static std::string name(){ return "object_id_type"; } };
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template<typename T> struct js_name< fc::flat_set<T> > { static std::string name(){ return "set " + js_name<T>::name(); } };
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template<typename T> struct js_name< std::vector<T> > { static std::string name(){ return "array " + js_name<T>::name(); } };
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@ -115,8 +114,8 @@ template<> struct js_name< time_point_sec > { static std::string name(){ retu
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template<uint8_t S, uint8_t T, typename O>
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struct js_name<graphene::db::object_id<S,T,O> >
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{
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static std::string name(){
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return "protocol_id_type \"" + remove_namespace(fc::get_typename<O>::name()) + "\"";
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static std::string name(){
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return "protocol_id_type \"" + remove_namespace(fc::get_typename<O>::name()) + "\"";
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};
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};
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@ -132,7 +131,7 @@ struct js_name< fc::flat_map<K,V> > { static std::string name(){ return "map ("
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template<typename... T> struct js_sv_name;
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template<typename A> struct js_sv_name<A>
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template<typename A> struct js_sv_name<A>
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{ static std::string name(){ return "\n " + js_name<A>::name(); } };
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template<typename A, typename... T>
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@ -142,10 +141,10 @@ struct js_sv_name<A,T...> { static std::string name(){ return "\n " + js_nam
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template<typename... T>
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struct js_name< fc::static_variant<T...> >
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{
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static std::string name( std::string n = ""){
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static std::string name( std::string n = ""){
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static const std::string name = n;
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if( name == "" )
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return "static_variant [" + js_sv_name<T...>::name() + "\n]";
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return "static_variant [" + js_sv_name<T...>::name() + "\n]";
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else return name;
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}
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};
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@ -290,7 +289,7 @@ class register_member_visitor
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}
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};
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template<typename T, bool reflected>
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template<typename T, bool reflected>
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struct serializer
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{
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static_assert( fc::reflector<T>::is_defined::value == reflected, "invalid template arguments" );
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