fixed: virtual socket memory leak, virtual socket port request safety… #16

Job	Run time
build-release (linux gnu x64)	1m 42s
build-release (linux musl x64)	1m 41s
build-release (linux gnu aarch64)	1m 43s
build-release (linux musl aarch64)	1m 47s
build-release (linux gnueabihf arm)	1m 37s
build-release (linux gnueabihf armv7)	1m 42s
build-release (macos x64)	1m 45s
build-release (macos aarch64)	1m 42s
deploy-docker	0s
create-release	0s
	13m 39s

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