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Programming Interface Information:
This information is NOT intended to be
used as Programming Interfaces of z/VM. |
MUCBK
Control Block Contents
MUCBK DSECT
MUC_COM_DATA DSECT
MUC_COM_CONFIG DSECT
MUC_COM_TERM DSECT
Cross Reference (Contains links to field and bit definitions)
MUCBK Prolog
NAME : HCPMUCBK
DESCRIPTION: Monitor User Control Block
DSECT : MUCBK
FUNCTION : Represents a user that has been connected to
*MONITOR System Service.
Storage type is sys perm.
LOCATED BY : Data structure Field location
MUC_NEXT field in MUCBK
MUC_PREV field in MUCBK
MNDI_CONN_HEAD field in MNDBK
MNDI_CONN_TAIL field in MNDBK
MNDI_SEV_PURGEF_H field in MNDBK
MNDI_SEV_PURGEF_T field in MNDBK
MNDE_MAIL_H field in MNDBK
MNDS_MAIL_H field in MNDBK
MNDE_PC_HEAD field in MNDBK
MNDS_PC_HEAD field in MNDBK
CREATED BY : HCPMNICN - *MONITOR IUCV CONNECT processing
DELETED BY : HCPMOIER - Process IUCV REPLY to Event Data Message
HCPMOISR - Process IUCV REPLY to Sample Data Message
HCPMXBCR - Process IUCV REPLY to Config Message
HCPMXESU - Sever Monitor User's IUCV Path to *MONITOR
HCPMOIRT - Process IUCV REPLY to Termination messages
REFERENCES : none
SERIALIZED : N/A
NOTES : The forward and backward
pointers must occupy the first two words of this
control block.
MUCBK Control Block Content
MUCBK DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure MUCBK Monitor User Control Block 0000 0 Address 4 MUC_NEXT Forward pointer to the next block on the chain - MUST BE FIRST IN BLOCK 0004 4 Address 4 MUC_PREV Backward pointer to the prev block on the chain - MUST BE SECOND IN BLOCK 0008 8 Character 8 MUC_USERID Userid 0010 16 Address 4 MUC_VMDBKAD Address of user's VMDBK User Session Data These characteristics are established when the user connects to **MONITOR. 0014 20 Bitstring 26 MUC_SESSION (0) Static Session Data User Static Session Data. This does not change while the user is connected. 0014 20 Bitstring 1 MUC_MON_TYPE Type of monitoring requested by user. At least one of these flags will be on. Serialized by the MND_CMD_LOCK 1... .... MUC_S_CONN X'80' Connected for sample data. This user is "eligible" for data messages if he is NOT on the sample pending- config list (MNDS_PC_LIST). .1.. .... MUC_E_CONN X'40' Connected for EVENT data ... this user is "eligible" for data messages if he is NOT on the event pending- config list (MNDE_PC_LIST). 0015 21 Bitstring 1 * Reserved for IBM use 0016 22 Bitstring 8 MUC_IUCV (0) Serialized by the MND_CMD_LOCK 0016 22 Address 2 MUC_PATHID IUCV-assigned pathid for the path between *MONITOR and this user's virtual machine 0018 24 Signed 1 MUC_MSGLIM (0) IUCV message limit information 0018 24 Bitstring 2 MUC_I_MSGLIM IUCV message limit for this path established when *MONITOR does the IUCV ACCEPT for this path 001A 26 Bitstring 2 * Reserved for IBM use User Dynamic Session Data. This can change while the user is connected. 001C 28 Bitstring 16 MUC_USER_STAT (0) Dynamic session data 001C 28 Bitstring 1 MUC_SAMPLE_STA (0) Sample Status 001C 28 Bitstring 1 MUC_SAMPLE_FLG Sample Status Flags 1... .... MUC_S_HC X'80' Holding sample config records. Serialized by MND_CMD_LOCK 001D 29 Bitstring 1 MUC_EVENT_STAT (0) Event Status 001D 29 Bitstring 1 MUC_EVENT_FLGS Event flags 1... .... MUC_E_HC X'80' Holding event config records. Serialized by MND_CMD_LOCK 001E 30 Bitstring 1 MUC_QUIS (0) 001E 30 Bitstring 1 MUC_QUIS_FLAGS Quiesce flags 1... .... MUC_QUIESCE X'80' User's path is quiesced. Serialized by MND_CMD_LOCK and the MNDE_MAIL_LOCK. 001F 31 Bitstring 1 * Reserved for IBM use 0020 32 Bitstring 8 MUC_SEVER (0) 0020 32 Bitstring 1 MUC_SEVER_FLGS Sever flags 0021 33 Bitstring 3 * Reserved for IBM use. 0024 36 Signed 4 MUC_PURGEF_CT Count of "purge-failed" messages - i.e. the number of messages that *MONITOR attempted to purge but failed to do so. 0028 40 Signed 4 MUC_MSG_CT Count of outstanding messages for this user (config, data and termination) Managing Event messages 002C 44 Bitstring 60 MUC_EVENT (0) 002C 44 Bitstring 30 MUC_EVENT_DATA (0) Event data mail list 002C 44 Address 4 MUC_EMAIL_NEXT Pointer to next MUCBK on event mail list (MNDE_MAIL). This field will contain hex FF's if this user is not on the mail list. Serialized by MNDE_MAIL_LOCK plus the MND_CMD_LOCK for updating. Either lock is sufficient for read only access. 0030 48 Address 4 MUC_EMAIL_PREV Pointer to previous MUCBK on the event mail list (MNDE_MAIL). This field will contain hex FF's if this user is not on the mail list. Serialized by MNDE_MAIL_LOCK plus the MND_CMD_LOCK for updating. Either lock is sufficient for read only access. 0034 52 Bitstring 11 MUC_ED_SENT (0) Chain of MMLBKs, each representing a message sent to the user for event data and for which *MONITOR is now awaiting a reply. Also mapped by MUC_COM_DATA. 0034 52 Address 4 MUC_ED_SENT_H Pointer to the head of this user's list of MMLBKs for sent EVENT data messages. When the list is empty, this field points to itself 0038 56 Address 4 MUC_ED_SENT_T Pointer to the tail of this user's list of MMLBKs for sent EVENT data messages. When the list is empty this field contains the address of the head, MUC_ED_SEND_H. 003C 60 Address 2 MUC_ED_SENT_CT count of EVENT data messages outstanding for this user 003E 62 Bitstring 1 * Reserved for IBM use 003F 63 Bitstring 1 * Reserved for IBM use 0040 64 Bitstring 10 MUC_ED_PEND (0) This is a circular list of MMLBKs for event data messages that are pending for this user. Serialized by MNDI_EV_SENT.MND_LOCK 0040 64 Address 4 MUC_ED_PEND_H Pointer to the head of this user's list of MMLBKs for pending event data messages. When the list is empty this field points to itself. 0044 68 Address 4 MUC_ED_PEND_T Pointer to the tail of this user's list of MMLBKs for pending event data messages. When the list is empty this field contains the address of the head, MUC_ED_PEND_H. 0048 72 Address 2 MUC_ED_PEND_CT Count of pending EVENT data messages for this user. 004A 74 Bitstring 2 * Reserved for IBM use EVENT config messages 004C 76 Bitstring 16 MUC_EVENT_CONF (0) These fields are serialized by the MND_CMD_LOCK. 004C 76 Address 4 MUC_EPC_NEXT Pointer to next MUCBK on event Pending-Config list (MNDE_PC_LIST). This field will contain hex FF's if this user is not on the list. 0050 80 Address 4 MUC_EPC_PREV Pointer to previous MUCBK on event Pending-Config list (MNDE_PC_LIST). This field will contain hex FF's if this user is not on the list. 0054 84 Bitstring 8 MUC_EC_SENT (0) A chain of MMLBKs, each representing a message sent to the user for event config data and for which *MONITOR is now awaiting a reply. Also mapped by MUC_COM_CONFIG. 0054 84 Address 4 MUC_EC_SENT_H Pointer to head of this user's list of EVENT config MMLs. When the list is empty, this field points to itself. Note: if this list is not empty, that does NOT necessarily mean that this user is holding the config area. However, only 1 MML at a time can be "active" - any others on the list represent messages that monitor tried to purge. (See MMLBK). 0058 88 Address 4 MUC_EC_SENT_T Pointer to tail of this user's list of EVENT config MMLs. When the list is empty, this field contains the address of the head, MUC_EC_SENT_H. EVENT termination messages 005C 92 Bitstring 12 MUC_EVENT_TERM (0) These fields are serialized by the MND_CMD_LOCK. 005C 92 Bitstring 8 MUC_ET_SENT (0) 005C 92 Address 4 MUC_ET_SENT_H Pointer to head of this user's list of EVENT termination MMLs. (Note: only 1 MML at a time can be "active" - any others on the list represent messages that monitor tried to purge (See MMLBK). When the list is empty, this field points to itself. 0060 96 Address 4 MUC_ET_SENT_T Pointer to tail of this user's list of EVENT termination messages. When the list is empty, this field contains the address of the head, MUC_ET_SENT_H. 0064 100 Bitstring 1 MUC_ET_PEND Termination flag 1... .... MUC_ET_PEND_FL X'80' Pending flag for termination message. ON = user needs an event termination message. A termination message will be sent when the user resumes his path. 0065 101 Bitstring 3 * Reserved for IBM use Managing SAMPLE messages 0068 104 Bitstring 48 MUC_SAMPLE (0) Sample data e-mail list 0068 104 Bitstring 1 MUC_SAMPLE_DAT (0) Sample data messages 0068 104 Address 4 MUC_SMAIL_NEXT Pointer to next MUCBK on sample mail list (MNDS_MAIL). This field will contain hex FF's if this user is not on the mail list. Serialized by MND_CMD_LOCK. 006C 108 Address 4 MUC_SMAIL_PREV Pointer to previous MUCBK on sample mail list (MNDS_MAIL). This field will contain hex FF's if this user is not on the mail list. Serialized by MND_CMD_LOCK. 0070 112 Bitstring 11 MUC_SD_SENT (0) Chain of MMLBKs, each representing a message sent to the user for sample data and for which *MONITOR is now awaiting a reply. Also mapped by MUC_COM_DATA. 0070 112 Address 4 MUC_SD_SENT_H Pointer to the head of this user's list of MMLs for sent SAMPLE data messages. When the list is empty, this field points to itself. 0074 116 Address 4 MUC_SD_SENT_T Pointer to the tail of this user's list of MMLs for sent SAMPLE data messages. When the list is empty, this field points to the head, MUC_SD_SENT_H. 0078 120 Address 2 MUC_SD_SENT_CT Count of SAMPLE data messages (MMLs) outstanding for this path 007A 122 Bitstring 1 MUC_SD_LOST Sample flags 1... .... MUC_SD_LOSG_BI X'80' The user has miss one or more messages while his path was quiesced. 007B 123 Bitstring 1 * Reserved for IBM use SAMPLE config messages 007C 124 Bitstring 16 MUC_SAMPLE_CON (0) Sample configuration data e-mail list Serialized by MND_CMD_LOCK. 007C 124 Address 4 MUC_SPC_NEXT Pointer to next MUCBK on sample pending-config list (MNDS_PC_LIST). This field will contain hex FF's if this user is not on the list (ie. if this user is not waiting foe sample config records.) 0080 128 Address 4 MUC_SPC_PREV Pointer to previous MUCBK on the sample pending-config list (MNDS_PC_LIST). This field will contain hex FFs if this user is not on the list (ie. if user is not waiting for sample config records. 0084 132 Bitstring 8 MUC_SC_SENT (0) Chain of MMLBKs, each representing a message sent to the user for sample config data and for which *MONITOR is now awaiting a reply. Also mapped by MUC_COM_CONFIG. 0084 132 Address 4 MUC_SC_SENT_H Pointer to head of this user's list of SAMPLE config MMLs. (Note: only 1 MML at a time can be "active" - any others on the list represent messages that monitor tried to purge. See MMLBK). When the list is empty this field points to itself. 0088 136 Address 4 MUC_SC_SENT_T Pointer to tail of this user's list of SAMPLE config MMLs. When the list is empty, this field points to the head, MUC_SC_SENT_H. 008C 140 Bitstring 12 MUC_SAMPLE_TER (0) Outstanding sample termination data 008C 140 Bitstring 8 MUC_ST_SENT (0) Circular list of MMLBKs for sent sample termination messages. 008C 140 Address 4 MUC_ST_SENT_H Pointer to head of this user's list of SAMPLE termination MMLs. (Note: only 1 MML at a time can be "active" - any others on the list represent messages that monitor tried to purge. See MMLBK). When the list is empty this field points to itself. 0090 144 Address 4 MUC_ST_SENT_T Pointer to tail of this user's list of SAMPLE termination messages. When the list is empty, this field points to the head, MUC_ST_SENT_H. 0094 148 Bitstring 1 MUC_ST_PEND Termindation flags 1... .... MUC_ST_PEND_FL X'80' Pending flag for termination message. A termination message will be sent when when user resumes his path. 0095 149 Bitstring 3 * Reserved for IBM use 00000098 MUC$END * 00000013 MUCSIZE (MUC$END-MUCBK+7)/8 MUCBK size in doublewords MUC_COM_DATA - Map for sample and event data sent fields. Common mapping for MUC_ED_SENT or MUC_SD_SENT.
MUC_COM_DATA DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure MUC_COM_DATA Monitor User Control Block 0000 0 Address 4 MUC_COMD_SENTH Pointer to the head of this user's list of MMLs for sent data messages 0004 4 Address 4 MUC_COMD_SENTT Pointer to the tail of this user's list of MMLs for sent data messages 0008 8 Address 2 MUC_COMD_SENTC Count of outstanding data messages for this user. 000A 10 Bitstring 1 MUC_COMD_LOST Messages flags MUC_COM_CONFIG - Map for sample and event config sent fields. Common mapping for MUC_EC_SENT or MUC_SC_SENT.
MUC_COM_CONFIG DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure MUC_COM_CONFIG Monitor User Control Block 0000 0 Address 4 MUC_COMC_SENTH Pointer to the head of this user's list of MMLs for sent config messages 0004 4 Address 4 MUC_COMC_SENTT Pointer to the tail of this user's list of MMLs for sent config messages MUC_COM_TERM - Map for sample and event data TERMINATION fields. Common mapping for MUC_EVENT_TERM and MUC_SAMPLE_TERM
MUC_COM_TERM DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure MUC_COM_TERM Monitor User Control Block 0000 0 Address 4 MUC_COMT_SENTH Pointer to the head of this user's list of MMLs for termination messages 0004 4 Address 4 MUC_COMT_SENTT Pointer to the tail of this user's list of MMLs for termination messages 0008 8 Bitstring 1 MUC_COMT Termination flags 1... .... MUC_COMT_FLAG X'80' Termination message pending 0009 9 Bitstring 3 * Reserved for IBM use
MUCBK Storage Layout
*** MUCBK - Monitor User Control Block * * +---------------------------+---------------------------+ * 0 | MUC_NEXT | MUC_PREV | * +---------------------------+---------------------------+ * 8 | MUC_USERID | * +---------------------------+------+------+-------------+ * 10 | MUC_VMDBKAD |(014) |//////| MUC_PATHID | * +-------------+-------------+------+------+------+------+ * 18 |MUC_I_MSGLIM |/////////////|(01C) |(01D) |(01E) |//////| * +------+------+-------------+------+------+------+------+ * 20 |(020) |////////////////////| MUC_PURGEF_CT | * +------+--------------------+---------------------------+ * 28 | MUC_MSG_CT | MUC_EMAIL_NEXT | * +---------------------------+---------------------------+ * 30 | MUC_EMAIL_PREV | MUC_ED_SENT_H | * +---------------------------+-------------+------+------+ * 38 | MUC_ED_SENT_T |:_ED_SENT_CT |//////|//////| * +---------------------------+-------------+------+------+ * 40 | MUC_ED_PEND_H | MUC_ED_PEND_T | * +-------------+-------------+---------------------------+ * 48 |:_ED_PEND_CT |/////////////| MUC_EPC_NEXT | * +-------------+-------------+---------------------------+ * 50 | MUC_EPC_PREV | MUC_EC_SENT_H | * +---------------------------+---------------------------+ * 58 | MUC_EC_SENT_T | MUC_ET_SENT_H | * +---------------------------+------+--------------------+ * 60 | MUC_ET_SENT_T |(064) |////////////////////| * +---------------------------+------+--------------------+ * 68 | MUC_SMAIL_NEXT | MUC_SMAIL_PREV | * +---------------------------+---------------------------+ * 70 | MUC_SD_SENT_H | MUC_SD_SENT_T | * +-------------+------+------+---------------------------+ * 78 |:_SD_SENT_CT |(07A) |//////| MUC_SPC_NEXT | * +-------------+------+------+---------------------------+ * 80 | MUC_SPC_PREV | MUC_SC_SENT_H | * +---------------------------+---------------------------+ * 88 | MUC_SC_SENT_T | MUC_ST_SENT_H | * +---------------------------+------+--------------------+ * 90 | MUC_ST_SENT_T |(094) |////////////////////| * +---------------------------+------+--------------------+ * 98 * *** MUCBK - Monitor User Control Block *** MUC_COM_DATA - Monitor User Control Block * * +---------------------------+---------------------------+ * 0 | MUC_COMD_SENTH | MUC_COMD_SENTT | * +-------------+------+------+---------------------------+ * 8 |:_COMD_SENTC |(00A) | B * +-------------+------+ * *** MUC_COM_DATA - Monitor User Control Block *** MUC_COM_CONFIG - Monitor User Control Block * * +---------------------------+---------------------------+ * 0 | MUC_COMC_SENTH | MUC_COMC_SENTT | * +---------------------------+---------------------------+ * 8 * *** MUC_COM_CONFIG - Monitor User Control Block *** MUC_COM_TERM - Monitor User Control Block * * +---------------------------+---------------------------+ * 0 | MUC_COMT_SENTH | MUC_COMT_SENTT | * +------+--------------------+---------------------------+ * 8 |:_COMT|////////////////////| C * +------+--------------------+ * *** MUC_COM_TERM - Monitor User Control Block
MUCBK Cross Reference
Symbol Dspl Value -------------- ---- ----- MUC$END 0095 00000098 MUC_COMC_SENTH 0000 MUC_COMC_SENTT 0004 MUC_COMD_LOST 000A MUC_COMD_SENTC 0008 MUC_COMD_SENTH 0000 MUC_COMD_SENTT 0004 MUC_COMT 0008 MUC_COMT_FLAG 0008 80 MUC_COMT_SENTH 0000 MUC_COMT_SENTT 0004 MUC_E_CONN 0014 40 MUC_E_HC 001D 80 MUC_EC_SENT 0054 MUC_EC_SENT_H 0054 MUC_EC_SENT_T 0058 MUC_ED_PEND 0040 MUC_ED_PEND_CT 0048 MUC_ED_PEND_H 0040 MUC_ED_PEND_T 0044 MUC_ED_SENT 0034 MUC_ED_SENT_CT 003C MUC_ED_SENT_H 0034 MUC_ED_SENT_T 0038 MUC_EMAIL_NEXT 002C MUC_EMAIL_PREV 0030 MUC_EPC_NEXT 004C MUC_EPC_PREV 0050 MUC_ET_PEND 0064 MUC_ET_PEND_FL 0064 80 MUC_ET_SENT 005C MUC_ET_SENT_H 005C MUC_ET_SENT_T 0060 MUC_EVENT 002C MUC_EVENT_CONF 004C MUC_EVENT_DATA 002C MUC_EVENT_FLGS 001D MUC_EVENT_STAT 001D MUC_EVENT_TERM 005C MUC_I_MSGLIM 0018 MUC_IUCV 0016 MUC_MON_TYPE 0014 MUC_MSG_CT 0028 MUC_MSGLIM 0018 MUC_NEXT 0000 MUC_PATHID 0016 MUC_PREV 0004 MUC_PURGEF_CT 0024 MUC_QUIESCE 001E 80 MUC_QUIS 001E MUC_QUIS_FLAGS 001E MUC_S_CONN 0014 80 MUC_S_HC 001C 80 MUC_SAMPLE 0068 MUC_SAMPLE_CON 007C MUC_SAMPLE_DAT 0068 MUC_SAMPLE_FLG 001C MUC_SAMPLE_STA 001C MUC_SAMPLE_TER 008C MUC_SC_SENT 0084 MUC_SC_SENT_H 0084 MUC_SC_SENT_T 0088 MUC_SD_LOSG_BI 007A 80 MUC_SD_LOST 007A MUC_SD_SENT 0070 MUC_SD_SENT_CT 0078 MUC_SD_SENT_H 0070 MUC_SD_SENT_T 0074 MUC_SESSION 0014 MUC_SEVER 0020 MUC_SEVER_FLGS 0020 MUC_SMAIL_NEXT 0068 MUC_SMAIL_PREV 006C MUC_SPC_NEXT 007C MUC_SPC_PREV 0080 MUC_ST_PEND 0094 MUC_ST_PEND_FL 0094 80 MUC_ST_SENT 008C MUC_ST_SENT_H 008C MUC_ST_SENT_T 0090 MUC_USER_STAT 001C MUC_USERID 0008 MUC_VMDBKAD 0010 MUCSIZE 0095 00000013
This information is based on z/VM V4R1.0.
Last updated on 5 Jun 2001 at 14:29:19 EDT.
Copyright IBM Corporation, 1990, 2001