From: hades <hades>
Date: Thu, 18 May 2000 16:51:05 +0000 (+0000)
Subject: Set buffer size implemented.
X-Git-Url: https://jspc29.x-matter.uni-frankfurt.de/git/?a=commitdiff_plain;h=5e3b39d3f666cb43ee00315df41d0d609d943715;p=daqdata.git

Set buffer size implemented.
---

diff --git a/hadaq/hwtape.c b/hadaq/hwtape.c
index 23c923c..8243e41 100644
--- a/hadaq/hwtape.c
+++ b/hadaq/hwtape.c
@@ -35,7 +35,7 @@ static FILE *openTape(const char* filename) {
 
 	FILE *outFile;
 
-	struct mtop *eom, *sbm, *rewind;
+	struct mtop *eom, *sbm, *rewind, *setblck;
 
 	tape = open(filename, O_RDWR);
 	if(tape == -1) {
@@ -89,7 +89,16 @@ static FILE *openTape(const char* filename) {
 
 	writeHeader(tape, fileSeqNum, filename);
 
+	setblck->mt_op = MTSETBLK;
+	setblck->mt_count = BLOCKSIZE;
+	stat = ioctl(tape, MTIOCTOP, &setblck);
+	if (stat == -1) {
+			msglog(LOG_ERR, "Could not go to the eon of the tape!\n");
+		exit(-2);
+	}
+
 	outFile = fdopen(tape, "wb");
+	setvbuf(outFile, 0, _IOFBF, BLOCKSIZE);
 }
 
 int closeTape(FILE *openTape, int tape, int numBlocks, const char *filename) {