273b70bacc
## Checklist - [x] I have read the [contribution guidelines](https://github.com/ooni/probe-cli/blob/master/CONTRIBUTING.md) - [x] reference issue for this pull request: https://github.com/ooni/probe/issues/1885 - [x] related ooni/spec pull request: N/A Location of the issue tracker: https://github.com/ooni/probe ## Description This PR contains a set of changes to move important interfaces and data types into the `./internal/model` package. The criteria for including an interface or data type in here is roughly that the type should be important and used by several packages. We are especially interested to move more interfaces here to increase modularity. An additional side effect is that, by reading this package, one should be able to understand more quickly how different parts of the codebase interact with each other. This is what I want to move in `internal/model`: - [x] most important interfaces from `internal/netxlite` - [x] everything that was previously part of `internal/engine/model` - [x] mocks from `internal/netxlite/mocks` should also be moved in here as a subpackage
46 lines
941 B
Go
46 lines
941 B
Go
package kvstore
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import (
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"errors"
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"sync"
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"github.com/ooni/probe-cli/v3/internal/model"
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)
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// ErrNoSuchKey indicates that there's no value for the given key.
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var ErrNoSuchKey = errors.New("no such key")
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// Memory is an in-memory key-value store.
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type Memory struct {
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// m is the underlying map.
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m map[string][]byte
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// mu provides mutual exclusion
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mu sync.Mutex
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}
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var _ model.KeyValueStore = &Memory{}
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// Get returns the specified key's value. In case of error, the
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// error type is such that errors.Is(err, ErrNoSuchKey).
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func (kvs *Memory) Get(key string) ([]byte, error) {
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kvs.mu.Lock()
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defer kvs.mu.Unlock()
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value, ok := kvs.m[key]
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if !ok {
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return nil, ErrNoSuchKey
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}
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return value, nil
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}
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// Set sets a key into the key-value store.
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func (kvs *Memory) Set(key string, value []byte) error {
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kvs.mu.Lock()
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defer kvs.mu.Unlock()
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if kvs.m == nil {
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kvs.m = make(map[string][]byte)
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}
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kvs.m[key] = value
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return nil
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}
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