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Fix out-of-band allocations in dynamic arenas

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rationalcoder
2025-09-16 16:31:10 -05:00
parent 11be0cb4ab
commit 710533975e
2 changed files with 16 additions and 15 deletions
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tests/core/mem/test_mem_dynamic_pool.odin
+8 -7
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@@ -44,11 +44,11 @@ expect_pool_allocation :: proc(t: ^testing.T, expected_used_bytes, num_bytes, al
testing.expect(t, pool.used_blocks == nil)
}
expect_pool_allocation_out_of_band :: proc(t: ^testing.T, num_bytes, out_band_size: int) {
expect_pool_allocation_out_of_band :: proc(t: ^testing.T, num_bytes, block_size, out_band_size: int) {
testing.expect(t, num_bytes >= out_band_size, "Sanity check failed, your test call is flawed! Make sure that num_bytes >= out_band_size!")
pool: mem.Dynamic_Pool
mem.dynamic_pool_init(&pool, out_band_size = out_band_size)
mem.dynamic_pool_init(&pool, block_size = block_size, out_band_size = out_band_size)
pool_allocator := mem.dynamic_pool_allocator(&pool)
element, err := mem.alloc(num_bytes, allocator = pool_allocator)
@@ -69,14 +69,15 @@ test_dynamic_pool_alloc_aligned :: proc(t: ^testing.T) {
@(test)
test_dynamic_pool_alloc_unaligned :: proc(t: ^testing.T) {
expect_pool_allocation(t, expected_used_bytes = 8, num_bytes=1, alignment=8)
expect_pool_allocation(t, expected_used_bytes = 16, num_bytes=9, alignment=8)
expect_pool_allocation(t, expected_used_bytes = 8, num_bytes = 1, alignment = 8)
expect_pool_allocation(t, expected_used_bytes = 16, num_bytes = 9, alignment = 8)
}
@(test)
test_dynamic_pool_alloc_out_of_band :: proc(t: ^testing.T) {
expect_pool_allocation_out_of_band(t, num_bytes = 128, out_band_size = 128)
expect_pool_allocation_out_of_band(t, num_bytes = 129, out_band_size = 128)
expect_pool_allocation_out_of_band(t, num_bytes = 128, block_size = 512, out_band_size = 128)
expect_pool_allocation_out_of_band(t, num_bytes = 129, block_size = 512, out_band_size = 128)
expect_pool_allocation_out_of_band(t, num_bytes = 513, block_size = 512, out_band_size = 128)
}
@(test)
@@ -98,4 +99,4 @@ intentionally_leaky_test :: proc(t: ^testing.T) {
leak_verifier :: proc(t: ^testing.T, ta: ^mem.Tracking_Allocator) {
testing.expect_value(t, len(ta.allocation_map), 1)
testing.expect_value(t, len(ta.bad_free_array), 1)
}
}