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Fix connection leak and panic at close operation #171

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alexvanin merged 3 commits from alexvanin/frostfs-sdk-go:fix/pool-panic-leak into master 2024-09-04 19:51:15 +00:00
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6
pool/pool.go
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@ -86,6 +86,8 @@ type client interface {
type clientStatus interface {
// isHealthy checks if the connection can handle requests.
isHealthy() bool
// isDialed checks if the connection was created.
dstepanov-yadro commented 2023-10-03 16:06:15 +00:00
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isDialled -> isDialed

isDialled -> isDialed
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isDialed() bool
// setUnhealthy marks client as unhealthy.
setUnhealthy()
// address return address of endpoint.
@ -2809,7 +2811,9 @@ func (p *Pool) Close() {
// close all clients
for _, pools := range p.innerPools {
for _, cli := range pools.clients {
_ = cli.close()
if cli.isDialed() {
fyrchik commented 2023-10-03 14:13:56 +00:00
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Wouldn't it be better from the client POV to just allow closing even undialed clients?

Wouldn't it be better from the client POV to just allow closing even undialed clients?
alexvanin commented 2023-10-03 16:46:28 +00:00
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It would, but simple solution down below didn't work, so I suppose changes should be done on api-go level as well.

func (c *Client) Close() error {
	if c.c.Conn() != nil {
		return c.c.Conn().Close()
	}
	return nil

Function comment clearly tells us MUST NOT be called before successful Dial. So invoker (pool) should check dial state, which it does now.

It would, but simple solution down below didn't work, so I suppose changes should be done on api-go level as well. ```go func (c *Client) Close() error { if c.c.Conn() != nil { return c.c.Conn().Close() } return nil ``` Function comment clearly tells us `MUST NOT be called before successful Dial`. So invoker (pool) should check dial state, which it does now.
_ = cli.close()
}
}
}
}