Is it feasible for the same process to call socket multiple times?

Today, it suddenly occurred to me that in the past, each process only called socket, once to get a scokfd, and then divided into client server,. Is it feasible for the same process to call multiple socket, one of which is used as a listening socket, and the rest to initiate connections to other processes?

Nov.07,2021

Why not

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1e3fa89-44868.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e3fa89-44868.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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