*DECK     SSCCTR
USETEXT TEXTSS
PROC SSCCTR (CNUM,SUCCESS); 
# TITLE SSCCTR - CANCEL TIMER REQUEST. #
  
      BEGIN  # SSCCTR # 
# 
**    SSCCTR - CANCEL TIMER REQUEST.
* 
*     F. HOU.                81/09/10.
* 
*     THIS PROCEDURE USES THE TIMER-CANCELLATION-NUMBER TO FIND 
*     THE CORRESPONDING TIMER ENTRY AND REMOVES IT. 
* 
*     PROC SSCCTR (CNUM,SUCCESS)
* 
*     ENTRY      CNUM   = THE TIMER-CANCELLATION-NUMBER.
*                SUCCESS= BOOLEAN FLAG TO INDICATE ENTRY WAS CANCELLED? 
* 
*     EXIT       THE TIMER REQUEST IS CANCELLED.
* 
*     NOTES      NONE.
* 
*     METHOD
* 
*     SEARCH TRQ1 FOR ENTRY WITH MATCHING TIMER-CANCELLATION-NUMBER.
*     IF NO MATCH FOUND,SET FLAG TO INDICATE FAIL.
*     IF MATCH FOUND, REMOVE ENTRY, SET FLAG TO INDICATE SUCCESS. 
*     IF MORE ENTRY IN TRQ1, SET CTM FIRE-TIME TO TRQ1[0] FIRE-TIME.
*     ELSE, SET CTM FIRE-TIME TO 77777777.
*     RETURN WITH FLAG INDICATING FAIL/SUCESS.
* 
# 
  
      ITEM CNUM       U;     # TIMER CANCELLATION NUMBER               #
      ITEM SUCCESS    B;     # FLAG TO INDICATE ENTRY WAS CANCELLED?   #
  
# 
****
# 
  
      XREF
        BEGIN 
        PROC SSTRTS;         # REMOVE TABLE SPACE                      #
        END 
  
# 
****
# 
  
      ITEM I          U;     # I IS A LOOP VARIABLE                    #
      ITEM II         I;     # II=I                                    #
  
  
CONTROL EJECT;
  
      P<TRQ1>=SSTRQ[0];      # SET BASED ARRAY-TRQ1 POINTER.           #
  
      IF (SSTRQL[0] EQ 0) 
      THEN
        BEGIN 
        SUCCESS=FALSE;       # RESET SUCCESS FLAG TO INDICATE FAIL     #
        RETURN; 
        END 
  
      II=0;                  # INITIAL VALUE OF II                     #
      FOR I=0 STEP 1 WHILE I LS (SSTRQL[0]/4) 
        AND (CNUM NQ TRQ1$CNUM[I])
      DO
        BEGIN 
        II=I; 
        END 
  
      IF (II EQ (SSTRQL[0]/4-1)) AND
        (CNUM NQ TRQ1$CNUM[II]) 
      THEN
        BEGIN 
        SUCCESS=FALSE;       # RESET SUCCESS FLAG TO INDICATE FAIL     #
        RETURN; 
        END 
  
#     I=0 CASE                         #
      IF (II EQ 0) AND
        ((SSTRQL[0] EQ 0) OR (CNUM EQ TRQ1$CNUM[0]))
      THEN
        BEGIN 
        II=II-1;
        END 
  
      SUCCESS=TRUE;          # SET SUCESS FLAG TO INDICATE SUCCESS     #
  
      SSTRTS (SSITRQ,(II+1)*4,TRQ1$ENTRY[II+1]); #REMOVE TABLE SPACE   #
      IF(SSTRQL[0] NQ 0)
      THEN
        BEGIN 
        CTM$FTIME[0]=TRQ1$FTIME[0];  # SET CTM FTIME TO TRQ1[0] FTIME  #
        END 
      ELSE
        BEGIN 
        CTM$FTIME[0]=O"77777777"; 
        END 
  
  
      END  # SSCCTR # 
  
      TERM