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fix ring buffer stomping in async match

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This commit is contained in:
Ryan Fleury
2024-11-12 13:20:30 -08:00
parent a8b1805749
commit e95afcd5aa
2 changed files with 5 additions and 2 deletions
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src/dbgi/dbgi.c
+4 -1
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@@ -1624,7 +1624,10 @@ di_match_store_section_kind_from_name(DI_MatchStore *store, String8 name, U64 en
{
U64 unconsumed_size = store->u2m_ring_write_pos - store->u2m_ring_read_pos;
U64 available_size = store->u2m_ring_size - unconsumed_size;
if(available_size >= sizeof(U64) + name.size)
U64 needed_size = sizeof(&node) + sizeof(U64) + sizeof(U64) + name.size;
needed_size += 7;
needed_size -= needed_size%8;
if(available_size >= needed_size)
{
store->u2m_ring_write_pos += ring_write_struct(store->u2m_ring_base, store->u2m_ring_size, store->u2m_ring_write_pos, &node);
store->u2m_ring_write_pos += ring_write_struct(store->u2m_ring_base, store->u2m_ring_size, store->u2m_ring_write_pos, &node->alloc_gen);