src/ipc/Messages.h

   1 /*
   2  * Copyright (C) 1996-2025 The Squid Software Foundation and contributors
   3  *
   4  * Squid software is distributed under GPLv2+ license and includes
   5  * contributions from numerous individuals and organizations.
   6  * Please see the COPYING and CONTRIBUTORS files for details.
   7  */
   8
   9 /* DEBUG: section 54    Interprocess Communication */
  10
  11 #ifndef SQUID_SRC_IPC_MESSAGES_H
  12 #define SQUID_SRC_IPC_MESSAGES_H
  13
  14 /** Declarations used by various IPC messages */
  15
  16 namespace Ipc
  17 {
  18
  19 /// message class identifier
  20 typedef enum { mtNone = 0, ///< unspecified or unknown message kind; unused on the wire
  21
  22                mtRegisterStrand, ///< notifies about our strand existence
  23                mtStrandRegistered, ///< acknowledges mtRegisterStrand acceptance
  24
  25                mtFindStrand, ///< a worker requests a strand from Coordinator
  26                mtStrandReady, ///< an mtFindStrand answer: the strand exists and should be usable
  27
  28                mtSharedListenRequest,
  29                mtSharedListenResponse,
  30
  31                mtIpcIoNotification,
  32
  33                mtCollapsedForwardingNotification,
  34
  35                mtCacheMgrRequest,
  36                mtCacheMgrResponse,
  37
  38 #if SQUID_SNMP
  39                mtSnmpRequest,
  40                mtSnmpResponse,
  41 #endif
  42
  43                mtEnd ///< for message kind range checks; unused on the wire
  44              } MessageType;
  45
  46 } // namespace Ipc;
  47
  48 #endif /* SQUID_SRC_IPC_MESSAGES_H */
  49