128ab3ea69
Instead of replacing writev(2) with loop based on write(2), test system limit on the number of vectors writev(2) accepts and split call to writev(2) to several calls in such a way that number of vectors in each call doesn't exceed this limit (aka UIO_MAXIOV). Bump PORTREVISION.
118 lines
2.8 KiB
Plaintext
118 lines
2.8 KiB
Plaintext
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$FreeBSD$
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--- configure 2001/10/27 12:43:19 1.1
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+++ configure 2001/10/27 12:43:58
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@@ -5747,9 +5747,9 @@
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rm -f conf.glibtest
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-GMODULE_CFLAGS=`glib-config --cflags gmodule`
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+GMODULE_CFLAGS=`$GLIB_CONFIG --cflags gmodule`
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-GMODULE_LIBS=`glib-config --libs gmodule`
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+GMODULE_LIBS=`$GLIB_CONFIG --libs gmodule`
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for ac_prog in 'bison -y' byacc
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@@ -7273,57 +7273,47 @@
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fi
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+echo $ac_n "checking how many vectors writev is capable to handle""... $ac_c" 1>&6
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+echo "configure:7278: checking how many vectors writev is capable to handle" >&5
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if test "$cross_compiling" = yes; then
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- cat >> confdefs.h <<\EOF
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-#define HAVE_LIMITED_WRITEV 1
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-EOF
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-
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+ MAXIOV=16
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else
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cat > conftest.$ac_ext <<EOF
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-#line 7284 "configure"
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+#line 7283 "configure"
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#include "confdefs.h"
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-#include <fcntl.h>
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+#include <sys/types.h>
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#include <sys/uio.h>
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-#define NIOVECS 50
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-int main(int argc, char *argv[])
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+#include <fcntl.h>
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+#include <stdio.h>
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+int main()
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{
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- char dumbuf[20] = "\n";
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- struct iovec iovecs[NIOVECS];
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- int i,fd;
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-
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- for(i = 0; i < NIOVECS; i++) {
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- iovecs[i].iov_base = dumbuf;
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- iovecs[i].iov_len = 1;
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- }
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-
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- fd=open("/dev/null", O_WRONLY);
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- if(fd==-1)
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- return(1);
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-
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- if(writev(fd, iovecs, NIOVECS) < 0)
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- return 1;
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-
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+ FILE *f;
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+ int fd, i;
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+ static struct iovec iovecs[4097];
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+ if ((f = fopen("conftestval", "w")) == NULL || \
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+ (fd = open("/dev/null", O_WRONLY)) < 0)
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+ exit(1);
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+ for (i = 1; i < 4098 && writev(fd, iovecs, i) >= 0; i++);
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+ fprintf(f, "%d\n", i - 1);
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+ fclose(f);
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close(fd);
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- return 0;
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+ exit(0);
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}
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EOF
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-if { (eval echo configure:7313: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
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+if { (eval echo configure:7306: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
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then
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- :
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+ MAXIOV=`cat conftestval`
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else
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echo "configure: failed program was:" >&5
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cat conftest.$ac_ext >&5
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rm -fr conftest*
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- cat >> confdefs.h <<\EOF
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-#define HAVE_LIMITED_WRITEV 1
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-EOF
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-
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+ MAXIOV=16
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fi
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rm -fr conftest*
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fi
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-
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+echo "$ac_t""$MAXIOV" 1>&6
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#######################
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@@ -8260,7 +8250,7 @@
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s%@LIB_WRAP@%$LIB_WRAP%g
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s%@HAVE_HOSTS_ACCESS_TRUE@%$HAVE_HOSTS_ACCESS_TRUE%g
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s%@HAVE_HOSTS_ACCESS_FALSE@%$HAVE_HOSTS_ACCESS_FALSE%g
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-s%@HAVE_LIMITED_WRITEV@%$HAVE_LIMITED_WRITEV%g
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+s%@MAXIOV@%$MAXIOV%g
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s%@subdirs@%$subdirs%g
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s%@pkglibdir@%$pkglibdir%g
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@@ -8584,10 +8574,6 @@
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*) # Relative path.
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ac_sub_cache_file="$ac_dots$cache_file" ;;
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esac
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- case "$ac_given_INSTALL" in
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- [/$]*) INSTALL="$ac_given_INSTALL" ;;
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- *) INSTALL="$ac_dots$ac_given_INSTALL" ;;
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- esac
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echo "running ${CONFIG_SHELL-/bin/sh} $ac_sub_configure $ac_sub_configure_args --cache-file=$ac_sub_cache_file --srcdir=$ac_sub_srcdir"
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# The eval makes quoting arguments work.
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