65 lines
1.6 KiB
Go
65 lines
1.6 KiB
Go
// Copyright (C) 2019-2023 Nicola Murino
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published
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// by the Free Software Foundation, version 3.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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package common
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import (
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"sync"
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"sync/atomic"
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"github.com/drakkan/sftpgo/v2/internal/logger"
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)
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// clienstMap is a struct containing the map of the connected clients
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type clientsMap struct {
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totalConnections atomic.Int32
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mu sync.RWMutex
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clients map[string]int
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}
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func (c *clientsMap) add(source string) {
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c.totalConnections.Add(1)
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c.mu.Lock()
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defer c.mu.Unlock()
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c.clients[source]++
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}
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func (c *clientsMap) remove(source string) {
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c.mu.Lock()
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defer c.mu.Unlock()
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if val, ok := c.clients[source]; ok {
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c.totalConnections.Add(-1)
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c.clients[source]--
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if val > 1 {
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return
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}
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delete(c.clients, source)
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} else {
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logger.Warn(logSender, "", "cannot remove client %v it is not mapped", source)
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}
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}
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func (c *clientsMap) getTotal() int32 {
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return c.totalConnections.Load()
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}
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func (c *clientsMap) getTotalFrom(source string) int {
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c.mu.RLock()
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defer c.mu.RUnlock()
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return c.clients[source]
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}
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