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# Description This updates our proof-of-work middleware, NoLLaMas, to work on a more easily configurable algorithm (thank you f0x for bringing this to my attention!). Instead of requiring that a solution with pre-determined number of '0' chars be found, it now pre-computes a result with a pre-determined nonce value that it expects the client to iterate up-to. (though with some level of jitter applied, to prevent it being too-easily gamed). This allows the user to configure roughly how many hash-encode rounds they want their clients to have to complete. ## Checklist - [x] I/we have read the [GoToSocial contribution guidelines](https://codeberg.org/superseriousbusiness/gotosocial/src/branch/main/CONTRIBUTING.md). - [x] I/we have discussed the proposed changes already, either in an issue on the repository, or in the Matrix chat. - [x] I/we have not leveraged AI to create the proposed changes. - [x] I/we have performed a self-review of added code. - [x] I/we have written code that is legible and maintainable by others. - [x] I/we have commented the added code, particularly in hard-to-understand areas. - [x] I/we have made any necessary changes to documentation. - [ ] I/we have added tests that cover new code. - [x] I/we have run tests and they pass locally with the changes. - [x] I/we have run `go fmt ./...` and `golangci-lint run`. Reviewed-on: https://codeberg.org/superseriousbusiness/gotosocial/pulls/4186 Co-authored-by: kim <grufwub@gmail.com> Co-committed-by: kim <grufwub@gmail.com>
117 lines
No EOL
2.9 KiB
Smarty
117 lines
No EOL
2.9 KiB
Smarty
package bitutil
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import (
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"strings"
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"unsafe"
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)
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{{ range $idx, $size := . }}
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// Flags{{ $size.Size }} is a type-casted unsigned integer with helper
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// methods for easily managing up to {{ $size.Size }} bit-flags.
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type Flags{{ $size.Size }} uint{{ $size.Size }}
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// Get will fetch the flag bit value at index 'bit'.
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func (f Flags{{ $size.Size }}) Get(bit uint8) bool {
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mask := Flags{{ $size.Size }}(1) << bit
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return (f & mask != 0)
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}
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// Set will set the flag bit value at index 'bit'.
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func (f Flags{{ $size.Size }}) Set(bit uint8) Flags{{ $size.Size }} {
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mask := Flags{{ $size.Size }}(1) << bit
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return f | mask
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}
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// Unset will unset the flag bit value at index 'bit'.
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func (f Flags{{ $size.Size }}) Unset(bit uint8) Flags{{ $size.Size }} {
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mask := Flags{{ $size.Size }}(1) << bit
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return f & ^mask
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}
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{{ range $idx := $size.Bits }}
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// Get{{ $idx }} will fetch the flag bit value at index {{ $idx }}.
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func (f Flags{{ $size.Size }}) Get{{ $idx }}() bool {
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const mask = Flags{{ $size.Size }}(1) << {{ $idx }}
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return (f & mask != 0)
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}
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// Set{{ $idx }} will set the flag bit value at index {{ $idx }}.
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func (f Flags{{ $size.Size }}) Set{{ $idx }}() Flags{{ $size.Size }} {
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const mask = Flags{{ $size.Size }}(1) << {{ $idx }}
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return f | mask
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}
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// Unset{{ $idx }} will unset the flag bit value at index {{ $idx }}.
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func (f Flags{{ $size.Size }}) Unset{{ $idx }}() Flags{{ $size.Size }} {
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const mask = Flags{{ $size.Size }}(1) << {{ $idx }}
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return f & ^mask
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}
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{{ end }}
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// String returns a human readable representation of Flags{{ $size.Size }}.
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func (f Flags{{ $size.Size }}) String() string {
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var (
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i int
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val bool
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buf []byte
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)
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// Make a prealloc est. based on longest-possible value
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const prealloc = 1+(len("false ")*{{ $size.Size }})-1+1
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buf = make([]byte, prealloc)
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buf[i] = '{'
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i++
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{{ range $idx := .Bits }}
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val = f.Get{{ $idx }}()
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i += copy(buf[i:], bool2str(val))
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buf[i] = ' '
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i++
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{{ end }}
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buf[i-1] = '}'
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buf = buf[:i]
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return *(*string)(unsafe.Pointer(&buf))
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}
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// GoString returns a more verbose human readable representation of Flags{{ $size.Size }}.
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func (f Flags{{ $size.Size }})GoString() string {
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var (
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i int
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val bool
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buf []byte
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)
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// Make a prealloc est. based on longest-possible value
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const prealloc = len("bitutil.Flags{{ $size.Size }}{")+(len("{{ sub $size.Size 1 }}=false ")*{{ $size.Size }})-1+1
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buf = make([]byte, prealloc)
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i += copy(buf[i:], "bitutil.Flags{{ $size.Size }}{")
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{{ range $idx := .Bits }}
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val = f.Get{{ $idx }}()
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i += copy(buf[i:], "{{ $idx }}=")
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i += copy(buf[i:], bool2str(val))
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buf[i] = ' '
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i++
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{{ end }}
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buf[i-1] = '}'
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buf = buf[:i]
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return *(*string)(unsafe.Pointer(&buf))
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}
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{{ end }}
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func bool2str(b bool) string {
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if b {
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return "true"
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}
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return "false"
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} |