From c1f93f58ee401804c3aca0e19c668fd4b3dee398 Mon Sep 17 00:00:00 2001
From: Meheboob Khan <mkhan@peerplays.com>
Date: Mon, 26 Sep 2022 20:14:31 +0000
Subject: [PATCH] Added functionality to check if the device size is less than
 50 MB [Issue 389]

---
 libraries/chain/db_block.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/libraries/chain/db_block.cpp b/libraries/chain/db_block.cpp
index 9606c59e..65f10cc7 100644
--- a/libraries/chain/db_block.cpp
+++ b/libraries/chain/db_block.cpp
@@ -40,8 +40,10 @@
 #include <graphene/chain/exceptions.hpp>
 #include <graphene/chain/evaluator.hpp>
 #include <graphene/chain/witness_schedule_object.hpp>
+#include <graphene/db/object_database.hpp>
 #include <fc/crypto/digest.hpp>
 
+#include <boost/filesystem.hpp>
 
 namespace {
 
@@ -196,6 +198,9 @@ bool database::push_block(const signed_block& new_block, uint32_t skip)
 
 bool database::_push_block(const signed_block& new_block)
 { try {
+   boost::filesystem::space_info si = boost::filesystem::space(get_data_dir());
+   FC_ASSERT((si.available) > 104857600, "Rejecting block due to low disk space"); // 104857600 bytes = 100 MB
+
    uint32_t skip = get_node_properties().skip_flags;
    const auto now = fc::time_point::now().sec_since_epoch();
 
@@ -726,7 +731,7 @@ void database::_apply_block( const signed_block& next_block )
 
    check_ending_lotteries();
    check_ending_nft_lotteries();
-   
+
    create_block_summary(next_block);
    place_delayed_bets(); // must happen after update_global_dynamic_data() updates the time
    clear_expired_transactions();