mongoc_socket_errno man page
mongoc_socket_errno — mongoc_socket_errno()
int mongoc_socket_errno (mongoc_socket_t *sock);
sock: A mongoc_socket_t.
This function returns the currently captured errno for a socket. This may be useful to check was the last errno was after another function call has been made that clears the threads errno variable.
0 if there is no error, otherwise a specific errno.
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