ipc_perm

Contains access permissions for the semaphore set.

Service:Synchronization

Structure

  #include <sys/ipc.h>
  
  struct ipc_perm
  {
     uid_t    uid;
     gid_t    gid;
     uid_t    cuid; 
     gid_t    cgid; 
     mode_t   mode; 
  };

Fields

uid: Specifies the owner.
gid: Specifies the owner.
cuid: Specifies the creator.
cgid: Specifies the creator.
mode: Specifes read or write permissions. For possible values, see File Access Modes and NetWare Attributes in Volume 1.