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Use posix_fadvise(2) only if it's available.

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This commit is contained in:
Juan RP 2012-12-15 10:47:30 +01:00
parent 5dab658d09
commit b75cd05c37
2 changed files with 49 additions and 38 deletions
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72
configure vendored
View File

@ -4,12 +4,6 @@
VERSION=0.19
# Ensure that we do not inherit these from env
STRLCPY=
STRLCAT=
VASPRINTF=
HUMANIZE_NUMBER=
LIBFETCH=
PROPLIB=
OS=
BUILD=
HOST=
@ -330,21 +324,38 @@ int main(void) {
}
EOF
if $XCC _$func.c -o _$func 2>/dev/null; then
VASPRINTF=yes
echo yes.
echo "CPPFLAGS += -DHAVE_VASPRINTF" >> $CONFIG_MK
else
VASPRINTF=no
echo no.
echo "COMPAT_SRCS+= compat/vasprintf.o" >>$CONFIG_MK
echo "#include \"compat.h\"" >>$CONFIG_H
fi
echo "$VASPRINTF."
rm -f _$func.c _$func
# Check for posix_fadvise(2)
func=posix_fadvise
printf "Checking for $func() ... "
cat <<EOF >_$func.c
#include <fcntl.h>
int main(void) {
posix_fadvise(0, 0, 0, POSIX_FADV_NORMAL);
return 0;
}
EOF
if $XCC _$func.c -o _$func 2>/dev/null; then
echo "yes."
echo "CPPFLAGS += -DHAVE_POSIX_FADVISE" >>$CONFIG_MK
else
echo "no."
fi
rm -f _$func _$func.c
#
# Check for strcasestr().
#
func=strcasestr
printf "Checking for $func() ..."
printf "Checking for $func() ... "
cat <<EOF >_$func.c
#define _GNU_SOURCE
#include <string.h>
@ -356,14 +367,13 @@ int main(void) {
}
EOF
if $XCC _$func.c -o _$func 2>/dev/null; then
STRCASESTR=yes
echo yes.
echo "CPPFLAGS += -DHAVE_STRCASESTR" >>$CONFIG_MK
else
STRCASESTR=no
echo no.
echo "COMPAT_SRCS += compat/strcasestr.o" >>$CONFIG_MK
echo "#include \"compat.h\"" >>$CONFIG_H
fi
echo "$STRCASESTR."
rm -f _$func _$func.c
#
@ -381,14 +391,13 @@ int main(void) {
}
EOF
if $XCC _$func.c -o _$func 2>/dev/null; then
STRLCPY=yes
echo yes.
echo "CPPFLAGS += -DHAVE_STRLCPY" >> $CONFIG_MK
else
STRLCPY=no
echo no.
echo "COMPAT_SRCS += compat/strlcpy.o" >>$CONFIG_MK
echo "#include \"compat.h\"" >>$CONFIG_H
fi
echo "$STRLCPY."
rm -f _$func.c _$func
#
@ -405,14 +414,13 @@ int main(void) {
}
EOF
if $XCC _$func.c -o _$func 2>/dev/null; then
STRLCAT=yes
echo yes.
echo "CPPFLAGS += -DHAVE_STRLCAT" >>$CONFIG_MK
else
STRLCAT=no
echo no.
echo "COMPAT_SRCS += compat/strlcat.o" >>$CONFIG_MK
echo "#include \"compat.h\"" >>$CONFIG_H
fi
echo "$STRLCAT."
rm -f _$func.c _$func
#
@ -429,14 +437,13 @@ int main(void) {
}
EOF
if $XCC -lutil _$func.c -o _$func 2>/dev/null; then
HUMANIZE_NUMBER=yes
echo yes.
echo "CPPFLAGS+= -DHAVE_HUMANIZE_NUMBER" >>$CONFIG_MK
else
HUMANIZE_NUMBER=no
echo no.
echo "COMPAT_SRCS+= compat/humanize_number.o" >>$CONFIG_MK
echo "#include \"compat.h\"" >>$CONFIG_H
fi
echo "$HUMANIZE_NUMBER."
rm -f _$func.c _$func
#
@ -452,13 +459,12 @@ int main(void) {
}
EOF
if $XCC _$func.c -o _$func 2>/dev/null; then
RBTREE=yes
echo yes.
echo "CPPFLAGS += -DHAVE_RBTREE" >>$CONFIG_MK
else
RBTREE=no
echo no.
echo "LIBPROP_OBJS += portableproplib/rb.o" >>$CONFIG_MK
fi
echo "$RBTREE."
rm -f _$func.c _$func
#
@ -474,16 +480,15 @@ int main(void) {
}
EOF
if $XCC -lfetch _$func.c -o _$func 2>/dev/null; then
LIBFETCH=yes
echo yes.
echo "USE_EXTERNAL_LIBFETCH = 1" >>$CONFIG_MK
echo "LDFLAGS += -lfetch" >>$CONFIG_MK
echo "STATIC_LIBS = \$(TOPDIR)/lib/libxbps.a -lfetch" >>$CONFIG_MK
else
LIBFETCH=no
echo no.
echo "CPPFLAGS += -I\$(TOPDIR)/lib/fetch" >>$CONFIG_MK
echo "STATIC_LIBS = \$(TOPDIR)/lib/libxbps.a" >>$CONFIG_MK
fi
echo "$LIBFETCH."
rm -f _$func.c _$func
#
@ -500,17 +505,16 @@ int main(void) {
}
EOF
if $XCC -lprop _$func.c -o _$func 2>/dev/null; then
PROPLIB=yes
echo yes.
echo "USE_EXTERNAL_PROPLIB = 1" >>$CONFIG_MK
echo "LDFLAGS += -lz -lpthread -lprop" >>$CONFIG_MK
echo "STATIC_LIBS += -lprop -lz -lpthread" >>$CONFIG_MK
else
PROPLIB=no
echo no.
echo "CPPFLAGS += -I\$(TOPDIR)/lib/portableproplib" >>$CONFIG_MK
echo "LDFLAGS += -lpthread" >>$CONFIG_MK
echo "STATIC_LIBS += -lpthread" >>$CONFIG_MK
fi
echo "$PROPLIB."
rm -f _$func.c _$func
#
@ -555,13 +559,12 @@ int main(void) {
}
EOF
if $XCC -lz _$func.c -o _$func 2>/dev/null; then
ZLIB=yes
echo yes.
echo "LDFLAGS += -lz" >>$CONFIG_MK
echo "STATIC_LIBS += -lz" >>$CONFIG_MK
else
ZLIB=no
fi
echo "$ZLIB."
rm -f _$func.c _$func
if [ "$ZLIB" = "no" ]; then
echo "Failed to link with your system's zlib, can't continue..."
@ -665,12 +668,11 @@ int main(void) {
}
EOF
if $XCC -lcrypto _$func.c -o _$func 2>/dev/null; then
CRYPTO_SHA256=yes
echo yes.
echo "LDFLAGS += -lcrypto" >>$CONFIG_MK
else
CRYPTO_SHA256=no
fi
echo "$ZLIB."
rm -f _$func.c _$func
if [ "$CRYPTO_SHA256" = "no" ]; then
echo "Failed to link with your system's OpenSSL library, can't continue..."

15
lib/package_unpack.c
View File

@ -23,6 +23,10 @@
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <sys/stat.h>
#include <stdio.h>
#include <stdbool.h>
@ -581,6 +585,7 @@ int HIDDEN
xbps_unpack_binary_pkg(struct xbps_handle *xhp, prop_dictionary_t pkg_repod)
{
struct archive *ar = NULL;
struct stat pkg_stat;
const char *pkgname, *version, *pkgver;
char *bpkg;
int pkg_fd, rv = 0;
@ -627,8 +632,11 @@ xbps_unpack_binary_pkg(struct xbps_handle *xhp, prop_dictionary_t pkg_repod)
}
archive_read_open_fd(ar, pkg_fd, ARCHIVE_READ_BLOCKSIZE);
free(bpkg);
posix_fadvise(pkg_fd, 0, 0, POSIX_FADV_SEQUENTIAL);
#ifdef HAVE_POSIX_FADVISE
fstat(pkg_fd, &pkg_stat);
posix_fadvise(pkg_fd, 0, pkg_stat.st_size, POSIX_FADV_SEQUENTIAL);
#endif
/*
* Extract archive files.
*/
@ -639,8 +647,9 @@ xbps_unpack_binary_pkg(struct xbps_handle *xhp, prop_dictionary_t pkg_repod)
pkgver, strerror(rv));
goto out;
}
posix_fadvise(pkg_fd, 0, 0, POSIX_FADV_DONTNEED);
#ifdef HAVE_POSIX_FADVISE
posix_fadvise(pkg_fd, 0, pkg_stat.st_size, POSIX_FADV_DONTNEED);
#endif
/*
* Set package state to unpacked.
*/