source: FOIAVistA/trunk/r/HEALTH_LEVEL_SEVEN-HL/HLCSTCP1.m@ 1427

Last change on this file since 1427 was 628, checked in by George Lilly, 15 years ago

initial load of FOIAVistA 6/30/08 version
File size: 8.8 KB
Line 
1HLCSTCP1 ;SFIRMFO/RSD - BI-DIRECTIONAL TCP ;10/17/2007 12:59
2 ;;1.6;HEALTH LEVEL SEVEN;**19,43,57,64,71,133,132,122**;OCT 13,1995;Build 14
3 ;Per VHA Directive 2004-038, this routine should not be modified.
4 ;Receiver
5 ;connection is initiated by sender and listener accepts connection
6 ;and calls this routine
7 ;
8 N $ETRAP,$ESTACK S $ETRAP="D ERROR^HLCSTCP1"
9 N HLMIEN,HLASTMSG
10 ;
11 ; patch HL*1.6*122 start
12 ; variable to replace ^TMP
13 N HLTMBUF
14 ;
15 ; for HL7 application proxy user
16 ;; N HLDUZ,DUZ ; patch HL*1.6*122 TEST v2: DUZ code removed
17 N HLDUZ
18 S HLDUZ=+$G(DUZ)
19 ;
20 D MON^HLCSTCP("Open")
21 ; K ^TMP("HLCSTCP",$J,0)
22 S HLMIEN=0,HLASTMSG=""
23 ;
24 ; patch HL*1.6*122 TEST v2: DUZ code removed
25 ; set DUZ for application proxy user
26 ;; D PROXY^HLCSTCP4
27 ;
28 F D Q:$$STOP^HLCSTCP I 'HLMIEN D MON^HLCSTCP("Idle") H 3
29 . ; clean variables
30 . D CLEANVAR^HLCSTCP4
31 . S HLMIEN=$$READ
32 . Q:'HLMIEN
33 . ;
34 . ; patch HL*1.6*122 TEST v2: DUZ code removed
35 . ; DUZ comparison/reset for application proxy user
36 . ;; D HLDUZ^HLCSTCP4
37 . D HLDUZ2^HLCSTCP4
38 . ; protect HLDUZ
39 . N HLDUZ
40 . D PROCESS
41 ; patch HL*1.6*122 end
42 Q
43 ;
44PROCESS ;check message and reply
45 ;HLDP=LL in 870
46 N HLTCP,HLTCPI,HLTCPO
47 S HLTCP="",HLTCPO=HLDP,HLTCPI=+HLMIEN
48 ;update monitor, msg. received
49 D LLCNT^HLCSTCP(HLDP,1)
50 D NEW^HLTP3(HLMIEN)
51 ;update monitor, msg. processed
52 D LLCNT^HLCSTCP(HLDP,2)
53 Q
54 ;
55READ() ;read 1 message, returns ien in 773^ien in 772 for message
56 D MON^HLCSTCP("Reading")
57 N HLDB,HLDT,HLDEND,HLACKWT,HLDSTRT,HLHDR,HLIND1,HLINE,HLMSG,HLRDOUT,HLRS,HLX,X
58 ;HLDSTRT=start char., HLDEND=end char., HLRS=record seperator
59 S HLDSTRT=$C(11),HLDEND=$C(28),HLRS=$C(13)
60 ;HLRDOUT=exit read loop, HLINE=line count, HLIND1=ien 773^ien 772
61 ;HLHDR=have a header, HLTMBUF()=excess from last read, HLACKWT=wait for ack
62 ; HL*1.6*122 start
63 ; S (HLRDOUT,HLINE,HLIND1,HLHDR)=0,HLX=$G(^TMP("HLCSTCP",$J,0)),HLACKWT=HLDBACK
64 S (HLRDOUT,HLINE,HLIND1,HLHDR)=0,HLX=$G(HLTMBUF(0)),HLACKWT=HLDBACK
65 N HLBUFF,HLXX,MAXWAIT
66 ; based on patch 132 for readtime
67 S MAXWAIT=$S((HLACKWT>HLDREAD):HLACKWT,1:HLDREAD)
68 S HLRS("START-FLAG")=0
69 S HLTMBUF(0)=""
70 ; variable used to store data in HLBUFF
71 S HLX(1)=$G(HLTMBUF(1))
72 S HLTMBUF(1)=""
73 S HLBUFF("START")=0
74 S HLBUFF("END")=0
75 I (HLX]"")!(HLX(1)]"") D
76 . I (HLX[HLDSTRT)!(HLX(1)[HLDSTRT) D
77 .. S HLBUFF("START")=1
78 . I (HLX[HLDEND)!(HLX(1)[HLDEND) D
79 .. S HLBUFF("END")=1
80 F D RDBLK Q:HLRDOUT
81 ;**132**
82 ;switch to null device if opened to prevent 'leakage'
83 I $G(IO(0))]"",IO(0)'=IO U IO(0)
84 ;
85 ;save any excess for next time
86 S:HLX]"" HLTMBUF(0)=HLX
87 S:HLX(1)]"" HLTMBUF(1)=HLX(1)
88 I +HLIND1,'$P(HLIND1,U,3) D DELMSG(HLIND1) S HLIND1=0
89 Q HLIND1
90 ;
91RDBLK ;
92 ; initialize
93 S HLBUFF=""
94 ;
95 ;S HLDB=HLDBSIZE-$L(HLX)
96 ; store the total length of HLX and HLX(1) in HLDB(1)
97 S HLDB(1)=$L(HLX)+$L(HLX(1))
98 ;
99 ;**132 **
100 ;U IO R X#HLDB:HLDREAD
101 ; U IO R X#HLDB:MAXWAIT
102 ;
103 ; remove the readcount to speedup GT.M
104 U IO
105 R:(HLDB(1)<HLDBSIZE) HLBUFF:MAXWAIT
106 I HLBUFF]"" D
107 . I HLBUFF[HLDSTRT,(HLBUFF("START")=0) D
108 .. ; remove the extraneous text prefixing the "START" char
109 .. I $P(HLBUFF,HLDSTRT)]"" S HLBUFF=HLDSTRT_$P(HLBUFF,HLDSTRT,2,99)
110 .. S HLBUFF("START")=1
111 . ;
112 . I HLBUFF[HLDEND,(HLBUFF("END")=0) S HLBUFF("END")=1
113 ; detect disconnect for GT.M
114 I $G(^%ZOSF("OS"))["GT.M",$DEVICE S $ECODE=",UREAD,"
115 ; timedout, <clean up>, quit
116 ;I '$T,X="",HLX="" S HLACKWT=HLACKWT-HLDREAD D:HLACKWT<0&'HLHDR CLEAN Q
117 ;I '$T,X="",HLX="" D:'HLHDR CLEAN Q
118 I '$T,HLBUFF="",HLX="",HLX(1)="" D Q
119 . D:('HLHDR)&('HLIND1) CLEAN
120 ;add incoming line to what wasn't processed in last read
121 ;S HLX=$G(HLX)_X
122 ;
123 ; get block of characters from read buffer HLBUFF
124 ; every 'for-loop' deal with one read at most, and one message at most
125 ; if HLX is not empty, loop continues even no data is read
126 ; quit, if both HLDBUFF and HLX(1) are empty, means one read is done
127 ; quit, when HLRDOUT is set to 1, means one message is encountered
128 ; an "end"
129 ; F D Q:HLXX=""!(HLRDOUT)
130 F D Q:(HLRDOUT)!(HLBUFF=""&(HLX(1)=""))
131 . ;
132 . ; if HLX(1) is not empty
133 . I HLX(1)]"" D
134 .. ; hldb(2) is the number of characters extracted from hlx(1)
135 .. ; to be concatenated with hlx
136 .. S HLDB(2)=HLDBSIZE-$L(HLX)
137 .. ; hlx(2) stores the first hldb(2) characters extracted
138 .. ; from hlx(1)
139 .. S HLX(2)=$E(HLX(1),1,HLDB(2))
140 .. S HLX(1)=$E(HLX(1),HLDB(2)+1,$L(HLX(1)))
141 .. S HLX=$G(HLX)_HLX(2)
142 . ;
143 . ; if HLX(1) is empty, and HLBUFF contains data
144 . ; all the data in hlx(1) need to be extracted first
145 . I HLX(1)="",HLBUFF]"" D
146 .. S HLDB=HLDBSIZE-$L(HLX)
147 .. S HLXX=$E(HLBUFF,1,HLDB)
148 .. S HLBUFF=$E(HLBUFF,HLDB+1,$L(HLBUFF))
149 .. S HLX=$G(HLX)_HLXX
150 . ; quit when HLX is empty
151 . Q:(HLX="")
152 . ; ** 132 **
153 . ; if no segment end, HLX not full, go back for more
154 . I $L(HLX)<HLDBSIZE,HLX'[HLRS,HLX'[HLDEND Q
155 . ;add incoming line to what wasn't processed
156 . D RDBLK2
157 ;
158 ; it is possible one message is encountered an "end" and other
159 ; messages left in buffer,HLBUFF, save it in HLX for next run
160 I HLBUFF]"" D
161 . ; variable HLBUFF may remain data with size more than HLDBSIZE
162 . ; variable HLBUFF is not empty, only if the total length of
163 . ; HLX and HLX(1) is less than HLDBSIZE and HLX(1) should be
164 . ; empty when the command s hlx(1)=$g(hlx(1))_hlbuff is executed
165 . ; use hlx(1) to store the data of hlbuff to avoid "MAXTRING" error
166 . S HLX(1)=$G(HLX(1))_HLBUFF
167 . S HLBUFF=""
168 Q
169 ;
170RDBLK2 ;data stream: <sb>dddd<cr><eb><cr>
171 ; HL*1.6*122 end
172 ; look for segment= <CR>
173 F Q:HLX'[HLRS D Q:HLRDOUT
174 . ; Get the first piece, save the rest of the line
175 . S HLINE=HLINE+1,HLMSG(HLINE,0)=$P(HLX,HLRS),HLX=$P(HLX,HLRS,2,999)
176 . ; check for start block, Quit if no ien
177 . I HLMSG(HLINE,0)[HLDSTRT!HLHDR D Q
178 .. S HLRS("START-FLAG")=1 ; HL*1.6*122
179 .. D:HLMSG(HLINE,0)[HLDSTRT
180 ... S X=$L(HLMSG(HLINE,0),HLDSTRT)
181 ... S:X>2 HLMSG(HLINE,0)=HLDSTRT_$P(HLMSG(HLINE,0),HLDSTRT,X)
182 ... S HLMSG(HLINE,0)=$P(HLMSG(HLINE,0),HLDSTRT,2)
183 ... D RESET:(HLINE>1)
184 .. ;
185 .. ; patch HL*1.6*122
186 .. ; if the first line less than 10 characters
187 .. I HLHDR,$L(HLMSG(1,0))<10,$D(HLMSG(2,0)) D
188 ... S HLMSG(1,0)=HLMSG(1,0)_$E(HLMSG(2,0),1,10)
189 ... S HLMSG(2,0)=$E(HLMSG(2,0),11,9999999)
190 .. ;
191 .. ;ping message
192 .. I $E(HLMSG(1,0),1,9)="MSH^PING^" D PING Q
193 .. ; get next ien to store
194 .. D MIEN^HLCSTCP4
195 .. K HLMSG
196 .. S (HLINE,HLHDR)=0
197 . ; check for end block; <eb><cr>
198 . I HLMSG(HLINE,0)[HLDEND D
199 .. ; patch HL*1.6*122 start
200 .. ;no msg. ien
201 .. ; Q:'HLIND1
202 .. I 'HLIND1 D CLEAN Q
203 .. ; Kill just the last line if no data before HLDEND
204 .. I $P(HLMSG(HLINE,0),HLDEND)']"" D
205 ... K HLMSG(HLINE,0) S HLINE=HLINE-1
206 .. E S HLMSG(HLINE,0)=$P(HLMSG(HLINE,0),HLDEND)
207 .. ; patch HL*1.6*122 end
208 .. ;
209 .. ; move into 772
210 .. D SAVE(.HLMSG,"^HL(772,"_+$P(HLIND1,U,2)_",""IN"")")
211 .. ;mark that end block has been received
212 .. ;HLIND1=ien in 773^ien in 772^1 if end block was received
213 .. S $P(HLIND1,U,3)=1
214 .. S HLBUFF("HLIND1")=HLIND1
215 .. ;reset variables for next message
216 .. D CLEAN
217 . ;add blank line for carriage return
218 . I HLINE'=0,HLMSG(HLINE,0)]"" S HLINE=HLINE+1,HLMSG(HLINE,0)=""
219 Q:HLRDOUT
220 ;If the line is long and no <CR> move it into the array.
221 I ($L(HLX)=HLDBSIZE),(HLX'[HLRS),(HLX'[HLDEND),(HLX'[HLDSTRT) D Q
222 . S HLINE=HLINE+1,HLMSG(HLINE,0)=HLX,HLX=""
223 ;have start block but no record seperator
224 I HLX[HLDSTRT D Q
225 . ;check for more than 1 start block
226 . S X=$L(HLX,HLDSTRT) S:X>2 HLX=HLDSTRT_$P(HLX,HLDSTRT,X)
227 . ;
228 . ; patch HL*1.6*122
229 . ; S:$L($P(HLX,HLDSTRT,2))>8 HLINE=HLINE+1,HLMSG(HLINE,0)=$P(HLX,HLDSTRT,2),HLX="",HLHDR=1
230 . S HLINE=HLINE+1,HLMSG(HLINE,0)=$P(HLX,HLDSTRT,2),HLX="",HLHDR=1
231 . ;
232 . D RESET:(HLHDR&(HLINE>1))
233 ;if no ien, reset
234 ; patch HL*1.6*122
235 ; I 'HLIND1 D CLEAN Q
236 I (HLRS("START-FLAG")=1),'HLIND1 D CLEAN Q
237 ; big message-merge from local to global every 100 lines
238 I (HLINE-$O(HLMSG(0)))>100 D
239 . M ^HL(772,+$P(HLIND1,U,2),"IN")=HLMSG
240 . ; reset working array
241 . K HLMSG
242 Q
243 ;
244SAVE(SRC,DEST) ;save into global & set top node
245 ;SRC=source array (passed by ref.), DEST=destination global
246 ;
247 ; patch HL*1.6*122: MPI-client/server
248 I DEST["HLMA" D
249 . F L +^HLMA(+HLIND1):10 Q:$T H 1
250 E D
251 . F L +^HL(772,+$P(HLIND1,U,2)):10 Q:$T H 1
252 ;
253 M @DEST=SRC
254 S @DEST@(0)="^^"_HLINE_"^"_HLINE_"^"_DT_"^"
255 ;
256 I DEST["HLMA" L -^HLMA(+HLIND1)
257 E L -^HL(772,+$P(HLIND1,U,2))
258 ;
259 Q
260 ;
261DELMSG(HLMAMT) ;delete message from Message Administration/Message Text files.
262 N DIK,DA
263 S DA=+HLMAMT,DIK="^HLMA("
264 D ^DIK
265 S DA=$P(HLMAMT,U,2),DIK="^HL(772,"
266 D ^DIK
267 Q
268PING ;process PING message
269 S X=HLMSG(1,0)
270 I X[HLDEND U IO W X,! D
271 . ; switch to null device if opened to prevent 'leakage'
272 . I $G(IO(0))]"",$G(IO(0))'=IO U IO(0)
273CLEAN ;reset var. for next message
274 K HLMSG
275 S HLINE=0,HLRDOUT=1
276 Q
277 ;
278ERROR ; Error trap for disconnect error and return back to the read loop.
279 ; patch HL*1.6*122
280 ; move to routine HLCSTCP4 (splitted-size over 10000)
281 D ERROR1^HLCSTCP4
282 Q
283 ;
284CC(X) ;cleanup and close
285 D MON^HLCSTCP(X)
286 H 2
287 Q
288RESET ;reset info as a result of no end block
289 N %
290 S HLMSG(1,0)=HLMSG(HLINE,0)
291 F %=2:1:HLINE K HLMSG(%,0)
292 S HLINE=1
293 Q
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