pcntl_unshare

Description

pcntl_unshare() allows a process to disassociate parts of its execution context that are currently being shared with other processes. The main use of pcntl_unshare() is to allow a process to control its shared execution context without creating a new process.

Parameters

flags

The flags parameter is a bitmask that specifies which parts of the execution context should be unshared. This parameter is specified by ORing together zero or more of the CLONE_* constants:

• CLONE_NEWNS
• CLONE_NEWIPC
• CLONE_NEWUTS
• CLONE_NEWNET
• CLONE_NEWPID
• CLONE_NEWUSER
• CLONE_NEWCGROUP

Return Values

Returns true on success or false on failure. On failure it sets an error code, that can be retrieved with pcntl_get_last_error().

See Also

• PCNTL Constants
• pcntl_get_last_error()