15069997160

Committed 16 May 2025 01:48PM CUT coverage: 99.832%. Remained the same

Build # 15069997160

Build Type

Pull #245

github

Committed by

web-flow

Commit Message

Merge 9f5dff38a into 88334f598

Pull Request Pull Request #245: GC bug: runtime: marked free object in span

Run Details

22 of 22 new or added lines in 4 files covered. (100.0%)

8314 of 8328 relevant lines covered (99.83%)

18415.54 hits per line

Source File
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100.0

/ecs/column.go

package ecs

import (
        "reflect"
        "unsafe"
)

// column storage for components in an table.
type column struct {
        pointer    unsafe.Pointer // pointer to the first element
        data       reflect.Value  // data buffer
        itemSize   uintptr        // memory size of items
        target     Entity         // target entity if for a relation component
        index      uint32         // index of the column in the containing table
        isRelation bool           // whether this column is for a relation component
}

// newColumn creates a new column for a given type and capacity.
func newColumn(index uint32, tp reflect.Type, itemSize uintptr, isRelation bool, target Entity, capacity uint32) column {
        // TODO: should we use a slice instead of an array here?
        data := reflect.New(reflect.ArrayOf(int(capacity), tp)).Elem()
        pointer := data.Addr().UnsafePointer()

        return column{
                index:      index,
                data:       data,
                pointer:    pointer,
                itemSize:   itemSize,
                isRelation: isRelation,
                target:     target,
        }
}

// Get returns a pointer to the component at the given index.
func (c *column) Get(index uintptr) unsafe.Pointer {
        return unsafe.Add(c.pointer, index*c.itemSize)
}

func (c *column) SetLast(other *column, ownLen uint32, count uint32) {
        start := ownLen - count
        copyRange(other.data, c.data, int(start), int(count))
}

// Set overwrites the component at the given index.
func (c *column) Set(index uint32, src *column, srcIndex int) {
        if c.itemSize == 0 {
                return
        }
        copyItem(src.data, c.data, srcIndex, int(index))
}

// Zero resets the memory at the given index.
func (c *column) Zero(index uintptr, zero unsafe.Pointer) {
        if c.itemSize == 0 {
                return
        }
        dst := unsafe.Add(c.pointer, index*c.itemSize)
        copyPtr(zero, dst, uintptr(c.itemSize))
}

// Zero resets a block of storage in one buffer.
func (c *column) ZeroRange(start, len uint32, zero unsafe.Pointer) {
        size := uint32(c.itemSize)
        if size == 0 {
                return
        }
        var i uint32
        for i = range len {
                dst := unsafe.Add(c.pointer, (i+start)*size)
                copyPtr(zero, dst, c.itemSize)
        }
}

func (c *column) Reset(ownLen uint32, zero unsafe.Pointer) {
        if ownLen == 0 {
                return
        }
        if ownLen <= 64 { // A coarse estimate where manually zeroing is faster
                c.ZeroRange(0, ownLen, zero)
        } else {
                c.data.SetZero()
        }
}

// entityColumn storage for entities in an table.
type entityColumn struct {
        pointer unsafe.Pointer // pointer to the first element
        data    reflect.Value  // data buffer
}

// newColumn creates a new column for a given type and capacity.
func newEntityColumn(capacity uint32) entityColumn {
        // TODO: should we use a slice instead of an array here?
        data := reflect.New(reflect.ArrayOf(int(capacity), entityType)).Elem()
        pointer := data.Addr().UnsafePointer()

        return entityColumn{
                data:    data,
                pointer: pointer,
        }
}

// Get returns a pointer to the component at the given index.
func (c *entityColumn) Get(index uintptr) unsafe.Pointer {
        return unsafe.Add(c.pointer, index*entitySize)
}

func (c *entityColumn) SetLast(other *entityColumn, ownLen uint32, count uint32) {
        start := ownLen - count
        copyRange(other.data, c.data, int(start), int(count))
}

// Set overwrites the component at the given index.
func (c *entityColumn) Set(index uint32, comp unsafe.Pointer) unsafe.Pointer {
        dst := c.Get(uintptr(index))

        copyPtr(comp, dst, entitySize)
        return dst
}

1	package ecs
2
3	import (
4	"reflect"
5	"unsafe"
6	)
7
8	// column storage for components in an table.
9	type column struct {
10	pointer unsafe.Pointer // pointer to the first element
11	data reflect.Value // data buffer
12	itemSize uintptr // memory size of items
13	target Entity // target entity if for a relation component
14	index uint32 // index of the column in the containing table
15	isRelation bool // whether this column is for a relation component
16	}
17
18	// newColumn creates a new column for a given type and capacity.
19	func newColumn(index uint32, tp reflect.Type, itemSize uintptr, isRelation bool, target Entity, capacity uint32) column {	7,377✔
20	// TODO: should we use a slice instead of an array here?	7,377✔
21	data := reflect.New(reflect.ArrayOf(int(capacity), tp)).Elem()	7,377✔
22	pointer := data.Addr().UnsafePointer()	7,377✔
23		7,377✔
24	return column{	7,377✔
25	index: index,	7,377✔
26	data: data,	7,377✔
27	pointer: pointer,	7,377✔
28	itemSize: itemSize,	7,377✔
29	isRelation: isRelation,	7,377✔
30	target: target,	7,377✔
31	}	7,377✔
32	}	7,377✔
33
34	// Get returns a pointer to the component at the given index.
35	func (c *column) Get(index uintptr) unsafe.Pointer {	1,527,657✔
36	return unsafe.Add(c.pointer, index*c.itemSize)	1,527,657✔
37	}	1,527,657✔
38
39	func (c column) SetLast(other column, ownLen uint32, count uint32) {	463✔
40	start := ownLen - count	463✔
41	copyRange(other.data, c.data, int(start), int(count))	463✔
42	}	463✔
43
44	// Set overwrites the component at the given index.
45	func (c column) Set(index uint32, src column, srcIndex int) {	4,883✔
46	if c.itemSize == 0 {	4,939✔
47	return	56✔
48	}	56✔
49	copyItem(src.data, c.data, srcIndex, int(index))	4,827✔
50	}
51
52	// Zero resets the memory at the given index.
53	func (c *column) Zero(index uintptr, zero unsafe.Pointer) {	502,253✔
54	if c.itemSize == 0 {	502,482✔
55	return	229✔
56	}	229✔
57	dst := unsafe.Add(c.pointer, index*c.itemSize)	502,024✔
58	copyPtr(zero, dst, uintptr(c.itemSize))	502,024✔
59	}
60
61	// Zero resets a block of storage in one buffer.
62	func (c *column) ZeroRange(start, len uint32, zero unsafe.Pointer) {	876✔
63	size := uint32(c.itemSize)	876✔
64	if size == 0 {	907✔
65	return	31✔
66	}	31✔
67	var i uint32	845✔
68	for i = range len {	11,934✔
69	dst := unsafe.Add(c.pointer, (i+start)*size)	11,089✔
70	copyPtr(zero, dst, c.itemSize)	11,089✔
71	}	11,089✔
72	}
73
74	func (c *column) Reset(ownLen uint32, zero unsafe.Pointer) {	889✔
75	if ownLen == 0 {	892✔
76	return	3✔
77	}	3✔
78	if ownLen <= 64 { // A coarse estimate where manually zeroing is faster	1,762✔
79	c.ZeroRange(0, ownLen, zero)	876✔
80	} else {	886✔
81	c.data.SetZero()	10✔
82	}	10✔
83	}
84
85	// entityColumn storage for entities in an table.
86	type entityColumn struct {
87	pointer unsafe.Pointer // pointer to the first element
88	data reflect.Value // data buffer
89	}
90
91	// newColumn creates a new column for a given type and capacity.
92	func newEntityColumn(capacity uint32) entityColumn {	2,832✔
93	// TODO: should we use a slice instead of an array here?	2,832✔
94	data := reflect.New(reflect.ArrayOf(int(capacity), entityType)).Elem()	2,832✔
95	pointer := data.Addr().UnsafePointer()	2,832✔
96		2,832✔
97	return entityColumn{	2,832✔
98	data: data,	2,832✔
99	pointer: pointer,	2,832✔
100	}	2,832✔
101	}	2,832✔
102
103	// Get returns a pointer to the component at the given index.
104	func (c *entityColumn) Get(index uintptr) unsafe.Pointer {	1,989,271✔
105	return unsafe.Add(c.pointer, index*entitySize)	1,989,271✔
106	}	1,989,271✔
107
108	func (c entityColumn) SetLast(other entityColumn, ownLen uint32, count uint32) {	215✔
109	start := ownLen - count	215✔
110	copyRange(other.data, c.data, int(start), int(count))	215✔
111	}	215✔
112
113	// Set overwrites the component at the given index.
114	func (c *entityColumn) Set(index uint32, comp unsafe.Pointer) unsafe.Pointer {	504,558✔
115	dst := c.Get(uintptr(index))	504,558✔
116		504,558✔
117	copyPtr(comp, dst, entitySize)	504,558✔
118	return dst	504,558✔
119	}	504,558✔

mlange-42 / ark / 15069997160

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