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POSIX threads and thread-local storage is needed for concurrent execution
This commit is contained in:
Maria Matejka
parent
a845651bc5
commit
b5061659d3
14
aclocal.m4
vendored
14
aclocal.m4
vendored
@ -1,5 +1,6 @@
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dnl ** Additional Autoconf tests for BIRD configure script
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dnl ** (c) 1999 Martin Mares <mj@ucw.cz>
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dnl ** (c) 2021 Maria Matejka <mq@jmq.cz>
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AC_DEFUN([BIRD_CHECK_THREAD_LOCAL],
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[
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@ -9,14 +10,23 @@ AC_DEFUN([BIRD_CHECK_THREAD_LOCAL],
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AC_COMPILE_IFELSE([
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AC_LANG_PROGRAM(
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[
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_Thread_local static int x = 42;
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static _Thread_local int x = 42;
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],
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[]
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)
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],
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[bird_cv_thread_local=yes],
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[bird_cv_thread_local=no]
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[AC_COMPILE_IFELSE([
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AC_LANG_PROGRAM(
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[
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static __thread int x = 42;
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],
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[]
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)
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],
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[bird_cv_thread_local=__thread],
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[bird_cv_thread_local=no]
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)])
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)
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])
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36
configure.ac
36
configure.ac
@ -36,12 +36,6 @@ AC_ARG_ENABLE([memcheck],
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[enable_memcheck=yes]
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)
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AC_ARG_ENABLE([pthreads],
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[AS_HELP_STRING([--enable-pthreads], [enable POSIX threads support @<:@try@:>@])],
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[],
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[enable_pthreads=try]
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)
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AC_ARG_ENABLE([libssh],
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[AS_HELP_STRING([--enable-libssh], [enable LibSSH support in RPKI @<:@try@:>@])],
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[],
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@ -125,27 +119,21 @@ if test -z "$GCC" ; then
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fi
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BIRD_CHECK_THREAD_LOCAL
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if test "$bird_cv_thread_local" = yes ; then
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AC_DEFINE([HAVE_THREAD_LOCAL], [1], [Define to 1 if _Thread_local is available])
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if test "$bird_cv_thread_local" = no ; then
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AC_MSG_ERROR([This program requires thread local storage.])
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elif test "$bird_cv_thread_local" != yes ; then
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AC_DEFINE_UNQUOTED([_Thread_local], [$bird_cv_thread_local], [Legacy _Thread_local])
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fi
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if test "$enable_pthreads" != no ; then
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BIRD_CHECK_PTHREADS
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if test "$bird_cv_lib_pthreads" = yes ; then
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AC_DEFINE([USE_PTHREADS], [1], [Define to 1 if pthreads are enabled])
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CFLAGS="$CFLAGS -pthread"
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LDFLAGS="$LDFLAGS -pthread"
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proto_bfd=bfd
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elif test "$enable_pthreads" = yes ; then
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else
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AC_MSG_ERROR([POSIX threads not available.])
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fi
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if test "$enable_pthreads" = try ; then
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enable_pthreads="$bird_cv_lib_pthreads"
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fi
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fi
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# This is assumed to be necessary for proper BIRD build
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CFLAGS="$CFLAGS -fno-strict-aliasing -fno-strict-overflow"
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@ -304,8 +292,7 @@ if test "$enable_mpls_kernel" != no ; then
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fi
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fi
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all_protocols="$proto_bfd babel bgp mrt ospf perf pipe radv rip rpki static"
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all_protocols="bfd babel bgp mrt ospf perf pipe radv rip rpki static"
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all_protocols=`echo $all_protocols | sed 's/ /,/g'`
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if test "$with_protocols" = all ; then
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@ -351,9 +338,15 @@ case $sysdesc in
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esac
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AC_CHECK_HEADERS_ONCE([alloca.h syslog.h])
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AC_CHECK_HEADER([sys/mman.h], [AC_DEFINE([HAVE_MMAP], [1], [Define to 1 if mmap() is available.])])
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AC_CHECK_HEADER([sys/mman.h], [AC_DEFINE([HAVE_MMAP], [1], [Define to 1 if mmap() is available.])], have_mman=no)
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AC_CHECK_FUNC([aligned_alloc], [AC_DEFINE([HAVE_ALIGNED_ALLOC], [1], [Define to 1 if aligned_alloc() is available.])], have_aligned_alloc=no)
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AC_CHECK_MEMBERS([struct sockaddr.sa_len], [], [], [#include <sys/socket.h>])
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if test "$have_aligned_alloc" = "no" && test "$have_mman" = "no" ; then
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AC_MSG_ERROR([No means of aligned alloc found. Need mmap() or aligned_alloc().])
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fi
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AC_C_BIGENDIAN(
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[AC_DEFINE([CPU_BIG_ENDIAN], [1], [Define to 1 if cpu is big endian])],
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[AC_DEFINE([CPU_LITTLE_ENDIAN], [1], [Define to 1 if cpu is little endian])],
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@ -402,7 +395,7 @@ if test "$enable_debug" = yes ; then
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fi
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fi
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if test "enable_debug_expensive" = yes ; then
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if test "$enable_debug_expensive" = yes ; then
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AC_DEFINE([ENABLE_EXPENSIVE_CHECKS], [1], [Define to 1 if you want to run expensive consistency checks.])
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fi
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fi
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@ -467,7 +460,6 @@ AC_MSG_RESULT([ Object directory: $objdir])
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AC_MSG_RESULT([ Iproute2 directory: $iproutedir])
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AC_MSG_RESULT([ System configuration: $sysdesc])
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AC_MSG_RESULT([ Debugging: $enable_debug])
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AC_MSG_RESULT([ POSIX threads: $enable_pthreads])
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AC_MSG_RESULT([ Routing protocols: $protocols])
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AC_MSG_RESULT([ LibSSH support in RPKI: $enable_libssh])
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AC_MSG_RESULT([ Kernel MPLS support: $enable_mpls_kernel])
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@ -77,10 +77,6 @@ static inline int u64_cmp(u64 i1, u64 i2)
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#define STATIC_ASSERT(EXP) _Static_assert(EXP, #EXP)
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#define STATIC_ASSERT_MSG(EXP,MSG) _Static_assert(EXP, MSG)
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#ifndef HAVE_THREAD_LOCAL
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#define _Thread_local
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#endif
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/* Microsecond time */
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typedef s64 btime;
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10
lib/timer.c
10
lib/timer.c
@ -40,8 +40,6 @@
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struct timeloop main_timeloop;
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#ifdef USE_PTHREADS
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#include <pthread.h>
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/* Data accessed and modified from proto/bfd/io.c */
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@ -62,14 +60,6 @@ timeloop_init_current(void)
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void wakeup_kick_current(void);
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#else
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/* Just use main timelooop */
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static inline struct timeloop * timeloop_current(void) { return &main_timeloop; }
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static inline void timeloop_init_current(void) { }
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#endif
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btime
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current_time(void)
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{
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@ -36,8 +36,6 @@ static list *current_log_list;
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static char *current_syslog_name; /* NULL -> syslog closed */
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#ifdef USE_PTHREADS
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#include <pthread.h>
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static pthread_mutex_t log_mutex;
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@ -48,15 +46,6 @@ static pthread_t main_thread;
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void main_thread_init(void) { main_thread = pthread_self(); }
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static int main_thread_self(void) { return pthread_equal(pthread_self(), main_thread); }
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#else
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static inline void log_lock(void) { }
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static inline void log_unlock(void) { }
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void main_thread_init(void) { }
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static int main_thread_self(void) { return 1; }
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#endif
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#ifdef HAVE_SYSLOG_H
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#include <sys/syslog.h>
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