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sys_posix: support SCHED_FIFO and mlockall on more OSs

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Real-time scheduling and memory locking is available on posix compliant
OSs. This patch centralizes this functionality and brings support to
FreeBSD, NetBSD, and Solaris.

[ML: updated coding style]
This commit is contained in:
Stefan R. Filipek
2019-04-19 14:41:14 -04:00
committed by Miroslav Lichvar
parent a78031ce0d
commit c5c80ef400
7 changed files with 195 additions and 105 deletions
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27
configure vendored
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@@ -396,7 +396,7 @@ SYSTEM=${OPERATINGSYSTEM}-${MACHINE}
case $OPERATINGSYSTEM in
Linux)
EXTRA_OBJECTS="sys_generic.o sys_linux.o sys_timex.o"
EXTRA_OBJECTS="sys_generic.o sys_linux.o sys_timex.o sys_posix.o"
[ $try_libcap != "0" ] && try_libcap=1
try_rtc=1
[ $try_seccomp != "0" ] && try_seccomp=1
@@ -411,7 +411,9 @@ case $OPERATINGSYSTEM in
# recvmmsg() seems to be broken on FreeBSD 11.0 and it's just
# a wrapper around recvmsg()
try_recvmmsg=0
EXTRA_OBJECTS="sys_generic.o sys_netbsd.o sys_timex.o"
EXTRA_OBJECTS="sys_generic.o sys_netbsd.o sys_timex.o sys_posix.o"
try_setsched=1
try_lockmem=1
add_def FREEBSD
if [ $feat_droproot = "1" ]; then
add_def FEAT_PRIVDROP
@@ -420,8 +422,10 @@ case $OPERATINGSYSTEM in
echo "Configuring for $SYSTEM"
;;
NetBSD)
EXTRA_OBJECTS="sys_generic.o sys_netbsd.o sys_timex.o"
EXTRA_OBJECTS="sys_generic.o sys_netbsd.o sys_timex.o sys_posix.o"
try_clockctl=1
try_setsched=1
try_lockmem=1
add_def NETBSD
echo "Configuring for $SYSTEM"
;;
@@ -446,9 +450,11 @@ case $OPERATINGSYSTEM in
echo "Configuring for macOS (" $SYSTEM "macOS version" $VERSION ")"
;;
SunOS)
EXTRA_OBJECTS="sys_generic.o sys_solaris.o sys_timex.o"
EXTRA_OBJECTS="sys_generic.o sys_solaris.o sys_timex.o sys_posix.o"
EXTRA_LIBS="-lsocket -lnsl -lresolv"
EXTRA_CLI_LIBS="-lsocket -lnsl -lresolv"
try_setsched=1
try_lockmem=1
add_def SOLARIS
# These are needed to have msg_control in struct msghdr
add_def __EXTENSIONS__
@@ -800,13 +806,20 @@ fi
if [ $try_lockmem = "1" ] && \
test_code \
'mlockall()' \
'sys/mman.h sys/resource.h' '' '' '
struct rlimit rlim;
setrlimit(RLIMIT_MEMLOCK, &rlim);
'sys/mman.h' '' '' '
mlockall(MCL_CURRENT|MCL_FUTURE);'
then
add_def HAVE_MLOCKALL
fi
if [ $try_lockmem = "1" ] && \
test_code \
'setrlimit(RLIMIT_MEMLOCK, ...)' \
'sys/resource.h' '' '' '
struct rlimit rlim;
setrlimit(RLIMIT_MEMLOCK, &rlim);'
then
add_def HAVE_SETRLIMIT_MEMLOCK
fi
if [ $feat_forcednsretry = "1" ]
then