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are_absolute_offsets_good method added

This commit is contained in:
moneroexamples 2018-03-26 08:47:23 +08:00
parent 0ce61ea930
commit f8831abb8e
1 changed files with 46 additions and 27 deletions
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73
src/page.h
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@ -1943,6 +1943,12 @@ public:
try
{
// before proceeding with geting the outputs based on the amount and absolute offset
// check how many outputs there are for that amount
// go to next input if a too large offset was found
if (are_absolute_offsets_good(absolute_offsets, in_key) == false)
continue;
core_storage->get_db().get_output_key(in_key.amount,
absolute_offsets,
mixin_outputs);
@ -4063,6 +4069,12 @@ public:
try
{
// before proceeding with geting the outputs based on the amount and absolute offset
// check how many outputs there are for that amount
// go to next input if a too large offset was found
if (are_absolute_offsets_good(absolute_offsets, in_key) == false)
continue;
core_storage->get_db().get_output_key(in_key.amount,
absolute_offsets,
outputs);
@ -5680,36 +5692,10 @@ private:
try
{
// before proceeding with geting the outputs based on the amount and absolute offset
// check how many outputs there are for that amount
uint64_t no_outputs = core_storage->get_db().get_num_outputs(in_key.amount);
bool offset_too_large {false};
int offset_idx {-1};
for (auto o: absolute_offsets)
{
offset_idx++;
if (o >= no_outputs)
{
offset_too_large = true;
cerr << "Absolute offset (" << o << ") of an output in a key image "
<< pod_to_hex(in_key.k_image)
<< " (ring member no: " << offset_idx << ") "
<< "for amount " << in_key.amount
<< " is too large. There are only "
<< no_outputs << " such outputs!\n";
continue;
}
offset_too_large = false;
}
// go to next input if a too large offset was found
if (offset_too_large)
if (are_absolute_offsets_good(absolute_offsets, in_key) == false)
continue;
// offsets seems good, so try to get the outputs for the amount and
@ -6294,6 +6280,39 @@ private:
return true;
}
bool
are_absolute_offsets_good(
std::vector<uint64_t> const& absolute_offsets,
txin_to_key const& in_key)
{
// before proceeding with geting the outputs based on the amount and absolute offset
// check how many outputs there are for that amount
uint64_t no_outputs = core_storage->get_db().get_num_outputs(in_key.amount);
bool offset_too_large {false};
int offset_idx {-1};
for (auto o: absolute_offsets)
{
offset_idx++;
if (o >= no_outputs)
{
offset_too_large = true;
cerr << "Absolute offset (" << o << ") of an output in a key image "
<< pod_to_hex(in_key.k_image)
<< " (ring member no: " << offset_idx << ") "
<< "for amount " << in_key.amount
<< " is too large. There are only "
<< no_outputs << " such outputs!\n";
continue;
}
}
return !offset_too_large;
}
string
get_footer()
{