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39 lines
1.1 KiB
Odin
39 lines
1.1 KiB
Odin
package main
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import "base:runtime"
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import "core:mem"
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import "core:testing"
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import "core:time"
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@test
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test_issue_3435 :: proc(t: ^testing.T) {
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testing.set_fail_timeout(t, time.Second)
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allocator: mem.Buddy_Allocator
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data := runtime.make_aligned([]byte, 64, 32)
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defer delete(data)
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// mem.buddy_allocator_init(&allocator, data, 32)
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// Bypass the assertion that would normally keep this from happening by
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// manually putting the allocator together.
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allocator.head = cast(^mem.Buddy_Block)raw_data(data)
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allocator.head.size = len(data)
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allocator.head.is_free = true
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allocator.tail = mem.buddy_block_next(allocator.head)
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allocator.alignment = 32
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context.allocator = mem.buddy_allocator(&allocator)
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// Three allocations in the space above is all that's needed to reproduce
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// the bug seen in #3435; this is the most minimal reproduction possible.
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a := make([]u8, 1)
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testing.expect(t, len(a) == 1)
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b := make([]u8, 1)
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testing.expect(t, len(b) == 0)
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c := make([]u8, 1)
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testing.expect(t, len(c) == 0)
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// With the bugfix in place, the allocator should be sensible enough to not
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// fall into an infinite loop anymore, even if the assertion is disabled.
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}
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