From: mischief <mischief@offblast.org>
To: 9front@9front.org
Subject: [PATCH 7 of 8] tee: use iounit for reads
Date: Sun, 23 Aug 2015 16:49:17 -0700 [thread overview]
Message-ID: <eb135d711d3e30fa57cf.1440373757@delta> (raw)
In-Reply-To: <patchbomb.1440373750@delta>
# HG changeset patch
# User mischief <mischief@offblast.org>
# Date 1440366687 25200
# Sun Aug 23 14:51:27 2015 -0700
# Node ID eb135d711d3e30fa57cfa2c87d53a2ac1a1ee34d
# Parent 8a7a4824b69f9c20955f3b96a01c142801f5af1f
tee: use iounit for reads
diff -r 8a7a4824b69f -r eb135d711d3e sys/src/cmd/tee.c
--- a/sys/src/cmd/tee.c Sun Aug 23 14:51:27 2015 -0700
+++ b/sys/src/cmd/tee.c Sun Aug 23 14:51:27 2015 -0700
@@ -12,7 +12,9 @@
int uflag;
int aflag;
-char in[8192];
+
+int buflen;
+char *buf;
int intignore(void*, char*);
@@ -61,12 +63,20 @@
argv++;
}
+ buflen = iounit(0);
+ if(buflen <= 0)
+ buflen = IOUNIT;
+
+ buf = sbrk(buflen);
+ if(buf == (void*)-1)
+ sysfatal("out of memory");
+
for(;;) {
- r = read(0, in, sizeof in);
+ r = read(0, buf, buflen);
if(r <= 0)
exits(nil);
for(i=0; i<n; i++)
- write(i+FDSTART, in, r);
+ write(i+FDSTART, buf, r);
write(1, in, r);
}
}
next prev parent reply other threads:[~2015-08-23 23:51 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-23 23:49 [PATCH 0 of 8] 48k iounit mischief
2015-08-23 23:49 ` [PATCH 1 of 8] devmnt: set MAXRPC to IOHDRSZ+48K mischief
2015-08-23 23:49 ` [PATCH 2 of 8] libc: define default IOUNIT as 48K mischief
2015-08-23 23:49 ` [PATCH 4 of 8] cwfs: use IOUNIT as MAXDAT, fix Msgbuf count overflow when MAXDAT > 2^15-1 mischief
2015-08-23 23:49 ` [PATCH 5 of 8] dossrv: set buffer size to IOUNIT mischief
2015-08-23 23:49 ` [PATCH 6 of 8] mv: use iounit for reads mischief
2015-08-24 0:01 ` [9front] " Iruatã Souza
2015-08-24 0:03 ` Nick Owens
2015-08-23 23:49 ` mischief [this message]
2015-08-23 23:49 ` [PATCH 8 of 8] tput: use iounit for reads, check sbrk return value mischief
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