Creates TCP server sockets bound to address:port and returns them.
It will create IPV4 and IPV6 sockets on all interfaces.
Creates TCP server sockets bound to address:port and returns them.
It will create IPV4 and IPV6 sockets on all interfaces.
Change the current process’s real and effective user ID to that specified by user. Returns the new user ID. Not available on all platforms.
[Process.uid, Process.euid] #=> [0, 0] Process::UID.change_privilege(31) #=> 31 [Process.uid, Process.euid] #=> [31, 31]
Exchange real and effective user IDs and return the new effective user ID. Not available on all platforms.
[Process.uid, Process.euid] #=> [0, 31] Process::UID.re_exchange #=> 0 [Process.uid, Process.euid] #=> [31, 0]
Returns true if the real and effective user IDs of a process may be exchanged on the current platform.
Change the current process’s real and effective group ID to that specified by group. Returns the new group ID. Not available on all platforms.
[Process.gid, Process.egid] #=> [0, 0] Process::GID.change_privilege(33) #=> 33 [Process.gid, Process.egid] #=> [33, 33]
Exchange real and effective group IDs and return the new effective group ID. Not available on all platforms.
[Process.gid, Process.egid] #=> [0, 33] Process::GID.re_exchange #=> 0 [Process.gid, Process.egid] #=> [33, 0]
Returns true if the real and effective group IDs of a process may be exchanged on the current platform.
Attempts to activate the current {#possibility} @return [void]
Generates a valid JSON document from object obj and returns the result. If no valid JSON document can be created this method raises a GeneratorError exception.
Returns the generator of the group.
See the OpenSSL documentation for EC_GROUP_get0_generator()
Returns the concatenated string from strings.
Read one byte from the tar entry
Enumerates through the vertices of the graph. @return [Array<Vertex>] The graph’s vertices.
Passes each grapheme cluster in str to the given block, or returns an enumerator if no block is given. Unlike String#each_char, this enumerates by grapheme clusters defined by Unicode Standard Annex #29 unicode.org/reports/tr29/
"a\u0300".each_char.to_a.size #=> 2 "a\u0300".each_grapheme_cluster.to_a.size #=> 1
Same as Enumerator#with_index(0), i.e. there is no starting offset.
If no block is given, a new Enumerator is returned that includes the index.