5387747e92
Bumps [github.com/containerd/cgroups/v3](https://github.com/containerd/cgroups) from 3.0.2 to 3.0.3. - [Release notes](https://github.com/containerd/cgroups/releases) - [Commits](https://github.com/containerd/cgroups/compare/v3.0.2...v3.0.3) --- updated-dependencies: - dependency-name: github.com/containerd/cgroups/v3 dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com>
53 lines
1.3 KiB
Go
53 lines
1.3 KiB
Go
package sys
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import (
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"unsafe"
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"github.com/cilium/ebpf/internal/unix"
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)
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// NewPointer creates a 64-bit pointer from an unsafe Pointer.
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func NewPointer(ptr unsafe.Pointer) Pointer {
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return Pointer{ptr: ptr}
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}
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// NewSlicePointer creates a 64-bit pointer from a byte slice.
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func NewSlicePointer(buf []byte) Pointer {
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if len(buf) == 0 {
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return Pointer{}
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}
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return Pointer{ptr: unsafe.Pointer(&buf[0])}
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}
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// NewSlicePointerLen creates a 64-bit pointer from a byte slice.
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//
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// Useful to assign both the pointer and the length in one go.
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func NewSlicePointerLen(buf []byte) (Pointer, uint32) {
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return NewSlicePointer(buf), uint32(len(buf))
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}
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// NewStringPointer creates a 64-bit pointer from a string.
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func NewStringPointer(str string) Pointer {
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p, err := unix.BytePtrFromString(str)
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if err != nil {
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return Pointer{}
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}
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return Pointer{ptr: unsafe.Pointer(p)}
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}
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// NewStringSlicePointer allocates an array of Pointers to each string in the
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// given slice of strings and returns a 64-bit pointer to the start of the
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// resulting array.
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//
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// Use this function to pass arrays of strings as syscall arguments.
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func NewStringSlicePointer(strings []string) Pointer {
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sp := make([]Pointer, 0, len(strings))
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for _, s := range strings {
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sp = append(sp, NewStringPointer(s))
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}
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return Pointer{ptr: unsafe.Pointer(&sp[0])}
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}
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