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75 lines (63 loc) 路 2.33 KB
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// MIT License
// Copyright (c) 2018 Andy Pan
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
package ants
// PoolWithFunc is like Pool but accepts a unified function for all goroutines to execute.
type PoolWithFunc struct {
*poolCommon
// fn is the unified function for processing tasks.
fn func(any)
}
// Invoke passes arguments to the pool.
//
// Note that you are allowed to call Pool.Invoke() from the current Pool.Invoke(),
// but what calls for special attention is that you will get blocked with the last
// Pool.Invoke() call once the current Pool runs out of its capacity, and to avoid this,
// you should instantiate a PoolWithFunc with ants.WithNonblocking(true).
func (p *PoolWithFunc) Invoke(arg any) error {
if p.IsClosed() {
return ErrPoolClosed
}
w, err := p.retrieveWorker()
if w != nil {
w.inputArg(arg)
}
return err
}
// NewPoolWithFunc instantiates a PoolWithFunc with customized options.
func NewPoolWithFunc(size int, pf func(any), options ...Option) (*PoolWithFunc, error) {
if pf == nil {
return nil, ErrLackPoolFunc
}
pc, err := newPool(size, options...)
if err != nil {
return nil, err
}
pool := &PoolWithFunc{
poolCommon: pc,
fn: pf,
}
pool.workerCache.New = func() any {
return &goWorkerWithFunc{
pool: pool,
arg: make(chan any, workerChanCap),
}
}
return pool, nil
}