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Commit 454c763c authored by unknown's avatar unknown
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Fix for configure to detect library correctly. 

Fix to check library in use during runtime.
Fix for Bug#16995, "idle connections not being killed due to timeout when NPTL is used".


BUILD/SETUP.sh:
  To avoid warnings during compilation.
configure.in:
  Fixed configure so that it can correctly detect
  between NPTL and Linuxthreads.
include/my_global.h:
  Fix for Linuxthreads.
include/my_pthread.h:
  Added defines for different libraries that can be detected.
  Currently only 'other', 'nptl', and 'lt' (linuxthreads) are
  being used.
  
  changed sigset() and signal() to my_sigset() and my_signal()
include/thr_alarm.h:
  Removed defines for Linuxthreads. This is now detected during
  runtime and handled in the thr_alarm.c
mysys/my_pthread.c:
  Runtime check for library.
mysys/thr_alarm.c:
  Runtime checks for library and corresponding
  signals.
sql/mysqld.cc:
  Added function for detecting thread library in use
  during start-up.
  
  THR_KILL_SIGNAL removed, setting signals during runtime.
parent 7b2b2231
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Showing with 215 additions and 151 deletions
BUILD/SETUP.sh
View file @ 454c763c
...@@ -39,8 +39,8 @@ global_warnings="-Wimplicit -Wreturn-type -Wswitch -Wtrigraphs -Wcomment -W -Wch ...@@ -39,8 +39,8 @@ global_warnings="-Wimplicit -Wreturn-type -Wswitch -Wtrigraphs -Wcomment -W -Wch
c_warnings="$global_warnings -Wunused" c_warnings="$global_warnings -Wunused"
cxx_warnings="$global_warnings -Woverloaded-virtual -Wsign-promo -Wreorder -Wctor-dtor-privacy -Wnon-virtual-dtor" cxx_warnings="$global_warnings -Woverloaded-virtual -Wsign-promo -Wreorder -Wctor-dtor-privacy -Wnon-virtual-dtor"
alpha_cflags="-mcpu=ev6 -Wa,-mev6" # Not used yet #alpha_cflags="-mcpu=ev6 -Wa,-mev6" # Not used yet
pentium_cflags="-mcpu=pentiumpro" #pentium_cflags="-mcpu=pentiumpro"
sparc_cflags="" sparc_cflags=""
# be as fast as we can be without losing our ability to backtrace # be as fast as we can be without losing our ability to backtrace
......
configure.in
View file @ 454c763c
...@@ -388,15 +388,16 @@ AC_MSG_CHECKING("if we should use 'skip-locking' as default for $target_os") ...@@ -388,15 +388,16 @@ AC_MSG_CHECKING("if we should use 'skip-locking' as default for $target_os")
if expr "$target_os" : "[[Ll]]inux.*" > /dev/null if expr "$target_os" : "[[Ll]]inux.*" > /dev/null
then then
MYSQLD_DEFAULT_SWITCHES="--skip-locking" MYSQLD_DEFAULT_SWITCHES="--skip-locking"
IS_LINUX="true" TARGET_LINUX="true"
AC_MSG_RESULT("yes"); AC_MSG_RESULT("yes");
AC_DEFINE([TARGET_OS_LINUX], [1], [Whether we build for Linux])
else else
MYSQLD_DEFAULT_SWITCHES="" MYSQLD_DEFAULT_SWITCHES=""
IS_LINUX="false" TARGET_LINUX="false"
AC_MSG_RESULT("no"); AC_MSG_RESULT("no");
fi fi
AC_SUBST(MYSQLD_DEFAULT_SWITCHES) AC_SUBST(MYSQLD_DEFAULT_SWITCHES)
AC_SUBST(IS_LINUX) AC_SUBST(TARGET_LINUX)
dnl Find paths to some shell programs dnl Find paths to some shell programs
AC_PATH_PROG(LN, ln, ln) AC_PATH_PROG(LN, ln, ln)
...@@ -576,7 +577,7 @@ AC_SUBST(NOINST_LDFLAGS) ...@@ -576,7 +577,7 @@ AC_SUBST(NOINST_LDFLAGS)
# (this is true on the MySQL build machines to avoid NSS problems) # (this is true on the MySQL build machines to avoid NSS problems)
# #
if test "$IS_LINUX" = "true" -a "$static_nss" = "" if test "$TARGET_LINUX" = "true" -a "$static_nss" = ""
then then
tmp=`nm /usr/lib/libc.a | grep _nss_files_getaliasent_r` tmp=`nm /usr/lib/libc.a | grep _nss_files_getaliasent_r`
if test -n "$tmp" if test -n "$tmp"
...@@ -827,7 +828,7 @@ struct request_info *req; ...@@ -827,7 +828,7 @@ struct request_info *req;
]) ])
AC_SUBST(WRAPLIBS) AC_SUBST(WRAPLIBS)
if test "$IS_LINUX" = "true"; then if test "$TARGET_LINUX" = "true"; then
AC_MSG_CHECKING([for atomic operations]) AC_MSG_CHECKING([for atomic operations])
AC_LANG_SAVE AC_LANG_SAVE
...@@ -870,7 +871,7 @@ int main() ...@@ -870,7 +871,7 @@ int main()
[ USE_PSTACK=no ]) [ USE_PSTACK=no ])
pstack_libs= pstack_libs=
pstack_dirs= pstack_dirs=
if test "$USE_PSTACK" = yes -a "$IS_LINUX" = "true" -a "$BASE_MACHINE_TYPE" = "i386" -a "$with_mit_threads" = "no" if test "$USE_PSTACK" = yes -a "$TARGET_LINUX" = "true" -a "$BASE_MACHINE_TYPE" = "i386" -a "$with_mit_threads" = "no"
then then
have_libiberty= have_libbfd= have_libiberty= have_libbfd=
my_save_LIBS="$LIBS" my_save_LIBS="$LIBS"
...@@ -1239,63 +1240,98 @@ with_posix_threads="no" ...@@ -1239,63 +1240,98 @@ with_posix_threads="no"
# Hack for DEC-UNIX (OSF1) # Hack for DEC-UNIX (OSF1)
if test "$with_named_thread" = "no" -a "$with_mit_threads" = "no" if test "$with_named_thread" = "no" -a "$with_mit_threads" = "no"
then then
# Look for LinuxThreads. AC_MSG_CHECKING("Linux threads")
AC_MSG_CHECKING("LinuxThreads") if test "$TARGET_LINUX" = "true"
grepres=`grep Linuxthreads /usr/include/pthread.h 2>/dev/null | wc -l`
getconfres=`which getconf >/dev/null && getconf GNU_LIBPTHREAD_VERSION | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ |grep LINUXTHREADS | wc -l || echo 0`
if test "$grepres" -gt 0 -o "$getconfres" -gt 0
then then
AC_MSG_RESULT("Found") AC_MSG_RESULT("starting")
AC_DEFINE(HAVE_LINUXTHREADS) # use getconf to check glibc contents
# Linux 2.0 sanity check AC_MSG_CHECKING("getconf GNU_LIBPTHREAD_VERSION")
AC_TRY_COMPILE([#include <sched.h>], [int a = sched_get_priority_min(1);], , case `getconf GNU_LIBPTHREAD_VERSION | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ` in
AC_MSG_ERROR([Syntax error in sched.h. Change _P to __P in the /usr/include/sched.h file. See the Installation chapter in the Reference Manual])) NPTL* )
# RedHat 5.0 does not work with dynamic linking of this. -static also AC_MSG_RESULT("NPTL")
# gives a speed increase in linux so it does not hurt on other systems. AC_DEFINE([HAVE_NPTL], [1], [NPTL threads implementation])
with_named_thread="-lpthread" with_named_thread="-lpthread"
else ;;
AC_MSG_RESULT("Not found") LINUXTHREADS* )
# If this is a linux machine we should barf AC_MSG_RESULT("Linuxthreads")
AC_MSG_CHECKING("NPTL") AC_DEFINE([HAVE_LINUXTHREADS], [1],
if test "$IS_LINUX" = "true" [Whether we are using Xavier Leroy's LinuxThreads])
then with_named_thread="-lpthread"
getconfres=`which getconf >/dev/null && getconf GNU_LIBPTHREAD_VERSION | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ |grep NPTL | wc -l || echo 0` ;;
if test "$getconfres" -gt 0 * )
AC_MSG_RESULT("unknown")
;;
esac
if test "$with_named_thread" = "no"
then then
AC_DEFINE(HAVE_LINUXTHREADS) dnl All this code predates NPTL, so "have linuxthreads" is a poor name. # old method, check headers
with_named_thread="-lpthread" # Look for LinuxThreads.
AC_MSG_CHECKING("LinuxThreads in header file comment")
res=`grep Linuxthreads /usr/include/pthread.h 2>/dev/null | wc -l`
if test "$res" -gt 0
then
AC_MSG_RESULT("Found")
AC_DEFINE([HAVE_LINUXTHREADS], [1],
[Whether we are using Xavier Leroy's LinuxThreads])
# Linux 2.0 sanity check
AC_TRY_COMPILE([#include <sched.h>], [int a = sched_get_priority_min(1);], ,
AC_MSG_ERROR([Syntax error in sched.h. Change _P to __P in the /usr/include/sched.h file. See the Installation chapter in the Reference Manual]))
# RedHat 5.0 does not work with dynamic linking of this. -static also
# gives a speed increase in linux so it does not hurt on other systems.
with_named_thread="-lpthread"
else
AC_MSG_RESULT("Not found")
# If this is a linux machine we should barf
AC_MSG_ERROR([This is a Linux system without a working getconf,
and Linuxthreads was not found. Please install it (or a new glibc) and try again.
See the Installation chapter in the Reference Manual for more information.])
fi
else else
AC_MSG_ERROR([This is a Linux system and neither Linuxthreads nor NPTL were AC_MSG_RESULT("no need to check headers")
found. Please install Linuxthreads or a new glibc and try
again. See the Installation chapter in the Reference Manual for
more information.])
fi fi
else AC_MSG_CHECKING("for pthread_create in -lpthread");
AC_MSG_CHECKING("DEC threads") ac_save_LIBS="$LIBS"
if test -f /usr/shlib/libpthread.so -a -f /usr/lib/libmach.a -a -f /usr/ccs/lib/cmplrs/cc/libexc.a LIBS="$LIBS -lpthread"
then AC_TRY_LINK( [#include <pthread.h>],
with_named_thread="-lpthread -lmach -lexc" [ (void) pthread_create((pthread_t*) 0,(pthread_attr_t*) 0, 0, 0); ],
CFLAGS="$CFLAGS -D_REENTRANT" AC_MSG_RESULT("yes"),
CXXFLAGS="$CXXFLAGS -D_REENTRANT" [ AC_MSG_RESULT("no")
AC_DEFINE(HAVE_DEC_THREADS) AC_MSG_ERROR([
AC_MSG_RESULT("yes") This is a Linux system claiming to support threads, either Linuxthreads or NPTL, but linking a test program failed.
else Please install one of these (or a new glibc) and try again.
AC_MSG_RESULT("no") See the Installation chapter in the Reference Manual for more information.]) ]
AC_MSG_CHECKING("DEC 3.2 threads") )
if test -f /usr/shlib/libpthreads.so -a -f /usr/lib/libmach.a -a -f /usr/ccs/lib/cmplrs/cc/libexc.a LIBS="$ac_save_LIBS"
then else
with_named_thread="-lpthreads -lmach -lc_r" AC_MSG_RESULT("no")
AC_DEFINE(HAVE_DEC_THREADS) fi # "$TARGET_LINUX"
AC_DEFINE(HAVE_DEC_3_2_THREADS) fi # "$with_named_thread" = "no" -a "$with_mit_threads" = "no"
with_osf32_threads="yes"
MYSQLD_DEFAULT_SWITCHES="--skip-thread-priority" if test "$with_named_thread" = "no" -a "$with_mit_threads" = "no"
AC_MSG_RESULT("yes") then
else AC_MSG_CHECKING("DEC threads")
AC_MSG_RESULT("no") if test -f /usr/shlib/libpthread.so -a -f /usr/lib/libmach.a -a -f /usr/ccs/lib/cmplrs/cc/libexc.a
fi then
fi with_named_thread="-lpthread -lmach -lexc"
fi CFLAGS="$CFLAGS -D_REENTRANT"
fi CXXFLAGS="$CXXFLAGS -D_REENTRANT"
AC_DEFINE(HAVE_DEC_THREADS)
AC_MSG_RESULT("yes")
else
AC_MSG_RESULT("no")
AC_MSG_CHECKING("DEC 3.2 threads")
if test -f /usr/shlib/libpthreads.so -a -f /usr/lib/libmach.a -a -f /usr/ccs/lib/cmplrs/cc/libexc.a
then
with_named_thread="-lpthreads -lmach -lc_r"
AC_DEFINE(HAVE_DEC_THREADS)
AC_DEFINE(HAVE_DEC_3_2_THREADS)
with_osf32_threads="yes"
MYSQLD_DEFAULT_SWITCHES="--skip-thread-priority"
AC_MSG_RESULT("yes")
else
AC_MSG_RESULT("no")
fi
fi
fi fi
...@@ -1720,7 +1756,7 @@ fi ...@@ -1720,7 +1756,7 @@ fi
AC_SUBST(COMPILATION_COMMENT) AC_SUBST(COMPILATION_COMMENT)
AC_MSG_CHECKING("need of special linking flags") AC_MSG_CHECKING("need of special linking flags")
if test "$IS_LINUX" = "true" -a "$ac_cv_prog_gcc" = "yes" -a "$all_is_static" != "yes" if test "$TARGET_LINUX" = "true" -a "$ac_cv_prog_gcc" = "yes" -a "$all_is_static" != "yes"
then then
LDFLAGS="$LDFLAGS -rdynamic" LDFLAGS="$LDFLAGS -rdynamic"
AC_MSG_RESULT("-rdynamic") AC_MSG_RESULT("-rdynamic")
...@@ -1873,6 +1909,7 @@ AC_CHECK_FUNCS(alarm bmove \ ...@@ -1873,6 +1909,7 @@ AC_CHECK_FUNCS(alarm bmove \
tell atod memcpy memmove \ tell atod memcpy memmove \
setupterm strcasecmp sighold vidattr lrand48 localtime_r \ setupterm strcasecmp sighold vidattr lrand48 localtime_r \
sigset sigthreadmask pthread_sigmask pthread_setprio pthread_setprio_np \ sigset sigthreadmask pthread_sigmask pthread_setprio pthread_setprio_np \
sigaction sigemptyset sigaddset \
pthread_setschedparam pthread_attr_setprio pthread_attr_setschedparam \ pthread_setschedparam pthread_attr_setprio pthread_attr_setschedparam \
pthread_attr_create pthread_getsequence_np pthread_attr_setstacksize \ pthread_attr_create pthread_getsequence_np pthread_attr_setstacksize \
pthread_attr_getstacksize pthread_key_delete \ pthread_attr_getstacksize pthread_key_delete \
...@@ -1884,7 +1921,7 @@ CFLAGS="$ORG_CFLAGS" ...@@ -1884,7 +1921,7 @@ CFLAGS="$ORG_CFLAGS"
# Sanity check: We chould not have any fseeko symbol unless # Sanity check: We chould not have any fseeko symbol unless
# large_file_support=yes # large_file_support=yes
AC_CHECK_FUNCS(fseeko, AC_CHECK_FUNCS(fseeko,
[if test "$large_file_support" = no -a "$IS_LINUX" = "true"; [if test "$large_file_support" = no -a "$TARGET_LINUX" = "true";
then then
AC_MSG_ERROR("Found fseeko symbol but large_file_support is not enabled!"); AC_MSG_ERROR("Found fseeko symbol but large_file_support is not enabled!");
fi] fi]
......
include/my_global.h
View file @ 454c763c
...@@ -97,7 +97,7 @@ ...@@ -97,7 +97,7 @@
/* Fix problem with S_ISLNK() on Linux */ /* Fix problem with S_ISLNK() on Linux */
#if defined(HAVE_LINUXTHREADS) #if defined(TARGET_OS_LINUX) || defined(__GLIBC__)
#undef _GNU_SOURCE #undef _GNU_SOURCE
#define _GNU_SOURCE 1 #define _GNU_SOURCE 1
#endif #endif
...@@ -348,7 +348,10 @@ int __void__; ...@@ -348,7 +348,10 @@ int __void__;
#endif #endif
/* Define some useful general macros */ /* Define some useful general macros */
#if !defined(max) #if defined(__cplusplus) && defined(__GNUC__)
#define max(a, b) ((a) >? (b))
#define min(a, b) ((a) <? (b))
#elif !defined(max)
#define max(a, b) ((a) > (b) ? (a) : (b)) #define max(a, b) ((a) > (b) ? (a) : (b))
#define min(a, b) ((a) < (b) ? (a) : (b)) #define min(a, b) ((a) < (b) ? (a) : (b))
#endif #endif
......
include/my_pthread.h
View file @ 454c763c
...@@ -28,6 +28,14 @@ ...@@ -28,6 +28,14 @@
extern "C" { extern "C" {
#endif /* __cplusplus */ #endif /* __cplusplus */
/* Thread library */
#define THD_LIB_OTHER 1
#define THD_LIB_NPTL 2
#define THD_LIB_LT 4
extern uint thd_lib_detected;
#if defined(__WIN__) || defined(OS2) #if defined(__WIN__) || defined(OS2)
#ifdef OS2 #ifdef OS2
...@@ -286,8 +294,8 @@ extern int my_pthread_create_detached; ...@@ -286,8 +294,8 @@ extern int my_pthread_create_detached;
#undef HAVE_PTHREAD_RWLOCK_RDLOCK #undef HAVE_PTHREAD_RWLOCK_RDLOCK
#undef HAVE_SNPRINTF #undef HAVE_SNPRINTF
#define sigset(A,B) pthread_signal((A),(void (*)(int)) (B)) #define my_sigset(A,B) pthread_signal((A),(void (*)(int)) (B))
#define signal(A,B) pthread_signal((A),(void (*)(int)) (B)) #define my_signal(A,B) pthread_signal((A),(void (*)(int)) (B))
#define my_pthread_attr_setprio(A,B) #define my_pthread_attr_setprio(A,B)
#endif /* defined(PTHREAD_SCOPE_GLOBAL) && !defined(PTHREAD_SCOPE_SYSTEM) */ #endif /* defined(PTHREAD_SCOPE_GLOBAL) && !defined(PTHREAD_SCOPE_SYSTEM) */
...@@ -324,14 +332,27 @@ extern int my_pthread_cond_init(pthread_cond_t *mp, ...@@ -324,14 +332,27 @@ extern int my_pthread_cond_init(pthread_cond_t *mp,
#if !defined(HAVE_SIGWAIT) && !defined(HAVE_mit_thread) && !defined(HAVE_rts_threads) && !defined(sigwait) && !defined(alpha_linux_port) && !defined(HAVE_NONPOSIX_SIGWAIT) && !defined(HAVE_DEC_3_2_THREADS) && !defined(_AIX) #if !defined(HAVE_SIGWAIT) && !defined(HAVE_mit_thread) && !defined(HAVE_rts_threads) && !defined(sigwait) && !defined(alpha_linux_port) && !defined(HAVE_NONPOSIX_SIGWAIT) && !defined(HAVE_DEC_3_2_THREADS) && !defined(_AIX)
int sigwait(sigset_t *setp, int *sigp); /* Use our implemention */ int sigwait(sigset_t *setp, int *sigp); /* Use our implemention */
#endif #endif
#if !defined(HAVE_SIGSET) && !defined(HAVE_mit_thread) && !defined(sigset)
#define sigset(A,B) do { struct sigaction s; sigset_t set; \ /*
sigemptyset(&set); \ We define my_sigset() and use that instead of the system sigset() so that
s.sa_handler = (B); \ we can favor an implementation based on sigaction(). On some systems, such
s.sa_mask = set; \ as Mac OS X, sigset() results in flags such as SA_RESTART being set, and
s.sa_flags = 0; \ we want to make sure that no such flags are set.
sigaction((A), &s, (struct sigaction *) NULL); \ */
#if defined(HAVE_SIGACTION) && !defined(my_sigset)
#define my_sigset(A,B) do { struct sigaction s; sigset_t set; int rc; \
DBUG_ASSERT((A) != 0); \
sigemptyset(&set); \
s.sa_handler = (B); \
s.sa_mask = set; \
s.sa_flags = 0; \
rc= sigaction((A), &s, (struct sigaction *) NULL); \
DBUG_ASSERT(rc == 0); \
} while (0) } while (0)
#elif defined(HAVE_SIGSET) && !defined(my_sigset)
#define my_sigset(A,B) sigset((A),(B))
#elif !defined(my_sigset)
#define my_sigset(A,B) signal((A),(B))
#endif #endif
#ifndef my_pthread_setprio #ifndef my_pthread_setprio
...@@ -416,7 +437,7 @@ struct tm *localtime_r(const time_t *clock, struct tm *res); ...@@ -416,7 +437,7 @@ struct tm *localtime_r(const time_t *clock, struct tm *res);
#undef pthread_detach_this_thread #undef pthread_detach_this_thread
#define pthread_detach_this_thread() { pthread_t tmp=pthread_self() ; pthread_detach(tmp); } #define pthread_detach_this_thread() { pthread_t tmp=pthread_self() ; pthread_detach(tmp); }
#undef sigset #undef sigset
#define sigset(A,B) pthread_signal((A),(void (*)(int)) (B)) #define my_sigset(A,B) pthread_signal((A),(void (*)(int)) (B))
#endif #endif
#if ((defined(HAVE_PTHREAD_ATTR_CREATE) && !defined(HAVE_SIGWAIT)) || defined(HAVE_DEC_3_2_THREADS)) && !defined(HAVE_CTHREADS_WRAPPER) #if ((defined(HAVE_PTHREAD_ATTR_CREATE) && !defined(HAVE_SIGWAIT)) || defined(HAVE_DEC_3_2_THREADS)) && !defined(HAVE_CTHREADS_WRAPPER)
......
include/thr_alarm.h
View file @ 454c763c
...@@ -25,11 +25,6 @@ extern "C" { ...@@ -25,11 +25,6 @@ extern "C" {
#ifndef USE_ALARM_THREAD #ifndef USE_ALARM_THREAD
#define USE_ONE_SIGNAL_HAND /* One must call process_alarm */ #define USE_ONE_SIGNAL_HAND /* One must call process_alarm */
#endif #endif
#ifdef HAVE_LINUXTHREADS
#define THR_CLIENT_ALARM SIGALRM
#else
#define THR_CLIENT_ALARM SIGUSR1
#endif
#ifdef HAVE_rts_threads #ifdef HAVE_rts_threads
#undef USE_ONE_SIGNAL_HAND #undef USE_ONE_SIGNAL_HAND
#define USE_ALARM_THREAD #define USE_ALARM_THREAD
......
mysys/my_pthread.c
View file @ 454c763c
...@@ -31,6 +31,8 @@ ...@@ -31,6 +31,8 @@
#define SCHED_POLICY SCHED_OTHER #define SCHED_POLICY SCHED_OTHER
#endif #endif
uint thd_lib_detected;
#ifndef my_pthread_setprio #ifndef my_pthread_setprio
void my_pthread_setprio(pthread_t thread_id,int prior) void my_pthread_setprio(pthread_t thread_id,int prior)
{ {
...@@ -320,7 +322,7 @@ void *sigwait_thread(void *set_arg) ...@@ -320,7 +322,7 @@ void *sigwait_thread(void *set_arg)
sigaction(i, &sact, (struct sigaction*) 0); sigaction(i, &sact, (struct sigaction*) 0);
} }
} }
sigaddset(set,THR_CLIENT_ALARM); sigaddset(set, thd_lib_detected == THD_LIB_LT ? SIGALRM : SIGUSR1);
pthread_sigmask(SIG_UNBLOCK,(sigset_t*) set,(sigset_t*) 0); pthread_sigmask(SIG_UNBLOCK,(sigset_t*) set,(sigset_t*) 0);
alarm_thread=pthread_self(); /* For thr_alarm */ alarm_thread=pthread_self(); /* For thr_alarm */
......
mysys/thr_alarm.c
View file @ 454c763c
...@@ -59,9 +59,7 @@ static void *alarm_handler(void *arg); ...@@ -59,9 +59,7 @@ static void *alarm_handler(void *arg);
#define reschedule_alarms() pthread_kill(alarm_thread,THR_SERVER_ALARM) #define reschedule_alarms() pthread_kill(alarm_thread,THR_SERVER_ALARM)
#endif #endif
#if THR_CLIENT_ALARM != SIGALRM || defined(USE_ALARM_THREAD)
static sig_handler thread_alarm(int sig __attribute__((unused))); static sig_handler thread_alarm(int sig __attribute__((unused)));
#endif
static int compare_ulong(void *not_used __attribute__((unused)), static int compare_ulong(void *not_used __attribute__((unused)),
byte *a_ptr,byte* b_ptr) byte *a_ptr,byte* b_ptr)
...@@ -77,21 +75,16 @@ void init_thr_alarm(uint max_alarms) ...@@ -77,21 +75,16 @@ void init_thr_alarm(uint max_alarms)
alarm_aborted=0; alarm_aborted=0;
init_queue(&alarm_queue,max_alarms+1,offsetof(ALARM,expire_time),0, init_queue(&alarm_queue,max_alarms+1,offsetof(ALARM,expire_time),0,
compare_ulong,NullS); compare_ulong,NullS);
sigfillset(&full_signal_set); /* Neaded to block signals */ sigfillset(&full_signal_set); /* Needed to block signals */
pthread_mutex_init(&LOCK_alarm,MY_MUTEX_INIT_FAST); pthread_mutex_init(&LOCK_alarm,MY_MUTEX_INIT_FAST);
pthread_cond_init(&COND_alarm,NULL); pthread_cond_init(&COND_alarm,NULL);
#if THR_CLIENT_ALARM != SIGALRM || defined(USE_ALARM_THREAD) #ifndef USE_ALARM_THREAD
#if defined(HAVE_mit_thread) if (thd_lib_detected != THD_LIB_LT)
sigset(THR_CLIENT_ALARM,thread_alarm); /* int. thread system calls */ #endif
#else
{ {
struct sigaction sact; my_sigset(thd_lib_detected == THD_LIB_LT ? SIGALRM : SIGUSR1,
sact.sa_flags = 0; thread_alarm);
sact.sa_handler = thread_alarm;
sigaction(THR_CLIENT_ALARM, &sact, (struct sigaction*) 0);
} }
#endif
#endif
sigemptyset(&s); sigemptyset(&s);
sigaddset(&s, THR_SERVER_ALARM); sigaddset(&s, THR_SERVER_ALARM);
alarm_thread=pthread_self(); alarm_thread=pthread_self();
...@@ -109,13 +102,15 @@ void init_thr_alarm(uint max_alarms) ...@@ -109,13 +102,15 @@ void init_thr_alarm(uint max_alarms)
} }
#elif defined(USE_ONE_SIGNAL_HAND) #elif defined(USE_ONE_SIGNAL_HAND)
pthread_sigmask(SIG_BLOCK, &s, NULL); /* used with sigwait() */ pthread_sigmask(SIG_BLOCK, &s, NULL); /* used with sigwait() */
#if THR_SERVER_ALARM == THR_CLIENT_ALARM if (thd_lib_detected == THD_LIB_LT)
sigset(THR_CLIENT_ALARM,process_alarm); /* Linuxthreads */ {
pthread_sigmask(SIG_UNBLOCK, &s, NULL); my_sigset(thd_lib_detected == THD_LIB_LT ? SIGALRM : SIGUSR1,
#endif process_alarm); /* Linuxthreads */
pthread_sigmask(SIG_UNBLOCK, &s, NULL);
}
#else #else
my_sigset(THR_SERVER_ALARM, process_alarm);
pthread_sigmask(SIG_UNBLOCK, &s, NULL); pthread_sigmask(SIG_UNBLOCK, &s, NULL);
sigset(THR_SERVER_ALARM,process_alarm);
#endif #endif
DBUG_VOID_RETURN; DBUG_VOID_RETURN;
} }
...@@ -163,7 +158,7 @@ my_bool thr_alarm(thr_alarm_t *alrm, uint sec, ALARM *alarm_data) ...@@ -163,7 +158,7 @@ my_bool thr_alarm(thr_alarm_t *alrm, uint sec, ALARM *alarm_data)
now=(ulong) time((time_t*) 0); now=(ulong) time((time_t*) 0);
pthread_sigmask(SIG_BLOCK,&full_signal_set,&old_mask); pthread_sigmask(SIG_BLOCK,&full_signal_set,&old_mask);
pthread_mutex_lock(&LOCK_alarm); /* Lock from threads & alarms */ pthread_mutex_lock(&LOCK_alarm); /* Lock from threads & alarms */
if (alarm_aborted > 0) if (alarm_aborted > 0)
{ /* No signal thread */ { /* No signal thread */
DBUG_PRINT("info", ("alarm aborted")); DBUG_PRINT("info", ("alarm aborted"));
...@@ -249,7 +244,7 @@ void thr_end_alarm(thr_alarm_t *alarmed) ...@@ -249,7 +244,7 @@ void thr_end_alarm(thr_alarm_t *alarmed)
if (alarm_data->malloced) if (alarm_data->malloced)
my_free((gptr) alarm_data,MYF(0)); my_free((gptr) alarm_data,MYF(0));
found++; found++;
#ifndef DBUG_OFF #ifdef DBUG_OFF
break; break;
#endif #endif
} }
...@@ -258,10 +253,11 @@ void thr_end_alarm(thr_alarm_t *alarmed) ...@@ -258,10 +253,11 @@ void thr_end_alarm(thr_alarm_t *alarmed)
if (!found) if (!found)
{ {
if (*alarmed) if (*alarmed)
fprintf(stderr,"Warning: Didn't find alarm %lx in queue of %d alarms\n", fprintf(stderr,
(long) *alarmed, alarm_queue.elements); "Warning: Didn't find alarm 0x%lx in queue of %d alarms\n",
DBUG_PRINT("warning",("Didn't find alarm %lx in queue\n", (long) *alarmed, alarm_queue.elements);
(long) *alarmed)); DBUG_PRINT("warning",("Didn't find alarm 0x%lx in queue\n",
(long) *alarmed));
} }
pthread_mutex_unlock(&LOCK_alarm); pthread_mutex_unlock(&LOCK_alarm);
pthread_sigmask(SIG_SETMASK,&old_mask,NULL); pthread_sigmask(SIG_SETMASK,&old_mask,NULL);
...@@ -283,18 +279,18 @@ sig_handler process_alarm(int sig __attribute__((unused))) ...@@ -283,18 +279,18 @@ sig_handler process_alarm(int sig __attribute__((unused)))
This must be first as we can't call DBUG inside an alarm for a normal thread This must be first as we can't call DBUG inside an alarm for a normal thread
*/ */
#if THR_SERVER_ALARM == THR_CLIENT_ALARM if (thd_lib_detected == THD_LIB_LT &&
if (!pthread_equal(pthread_self(),alarm_thread)) !pthread_equal(pthread_self(),alarm_thread))
{ {
#if defined(MAIN) && !defined(__bsdi__) #if defined(MAIN) && !defined(__bsdi__)
printf("thread_alarm\n"); fflush(stdout); printf("thread_alarm in process_alarm\n"); fflush(stdout);
#endif #endif
#ifdef DONT_REMEMBER_SIGNAL #ifdef DONT_REMEMBER_SIGNAL
sigset(THR_CLIENT_ALARM,process_alarm); /* int. thread system calls */ my_sigset(thd_lib_detected == THD_LIB_LT ? SIGALRM : SIGUSR1,
process_alarm); /* int. thread system calls */
#endif #endif
return; return;
} }
#endif
/* /*
We have to do do the handling of the alarm in a sub function, We have to do do the handling of the alarm in a sub function,
...@@ -310,7 +306,7 @@ sig_handler process_alarm(int sig __attribute__((unused))) ...@@ -310,7 +306,7 @@ sig_handler process_alarm(int sig __attribute__((unused)))
process_alarm_part2(sig); process_alarm_part2(sig);
#ifndef USE_ALARM_THREAD #ifndef USE_ALARM_THREAD
#if defined(DONT_REMEMBER_SIGNAL) && !defined(USE_ONE_SIGNAL_HAND) #if defined(DONT_REMEMBER_SIGNAL) && !defined(USE_ONE_SIGNAL_HAND)
sigset(THR_SERVER_ALARM,process_alarm); my_sigset(THR_SERVER_ALARM, process_alarm);
#endif #endif
pthread_mutex_unlock(&LOCK_alarm); pthread_mutex_unlock(&LOCK_alarm);
pthread_sigmask(SIG_SETMASK,&old_mask,NULL); pthread_sigmask(SIG_SETMASK,&old_mask,NULL);
...@@ -338,7 +334,8 @@ static sig_handler process_alarm_part2(int sig __attribute__((unused))) ...@@ -338,7 +334,8 @@ static sig_handler process_alarm_part2(int sig __attribute__((unused)))
alarm_data=(ALARM*) queue_element(&alarm_queue,i); alarm_data=(ALARM*) queue_element(&alarm_queue,i);
alarm_data->alarmed=1; /* Info to thread */ alarm_data->alarmed=1; /* Info to thread */
if (pthread_equal(alarm_data->thread,alarm_thread) || if (pthread_equal(alarm_data->thread,alarm_thread) ||
pthread_kill(alarm_data->thread, THR_CLIENT_ALARM)) pthread_kill(alarm_data->thread,
thd_lib_detected == THD_LIB_LT ? SIGALRM : SIGUSR1))
{ {
#ifdef MAIN #ifdef MAIN
printf("Warning: pthread_kill couldn't find thread!!!\n"); printf("Warning: pthread_kill couldn't find thread!!!\n");
...@@ -362,7 +359,8 @@ static sig_handler process_alarm_part2(int sig __attribute__((unused))) ...@@ -362,7 +359,8 @@ static sig_handler process_alarm_part2(int sig __attribute__((unused)))
alarm_data->alarmed=1; /* Info to thread */ alarm_data->alarmed=1; /* Info to thread */
DBUG_PRINT("info",("sending signal to waiting thread")); DBUG_PRINT("info",("sending signal to waiting thread"));
if (pthread_equal(alarm_data->thread,alarm_thread) || if (pthread_equal(alarm_data->thread,alarm_thread) ||
pthread_kill(alarm_data->thread, THR_CLIENT_ALARM)) pthread_kill(alarm_data->thread,
thd_lib_detected == THD_LIB_LT ? SIGALRM : SIGUSR1))
{ {
#ifdef MAIN #ifdef MAIN
printf("Warning: pthread_kill couldn't find thread!!!\n"); printf("Warning: pthread_kill couldn't find thread!!!\n");
...@@ -439,16 +437,13 @@ void end_thr_alarm(my_bool free_structures) ...@@ -439,16 +437,13 @@ void end_thr_alarm(my_bool free_structures)
if (error == ETIME || error == ETIMEDOUT) if (error == ETIME || error == ETIMEDOUT)
break; /* Don't wait forever */ break; /* Don't wait forever */
} }
if (!alarm_queue.elements) delete_queue(&alarm_queue);
alarm_aborted= 1;
pthread_mutex_unlock(&LOCK_alarm);
if (!alarm_thread_running) /* Safety */
{ {
delete_queue(&alarm_queue); pthread_mutex_destroy(&LOCK_alarm);
alarm_aborted= 1; pthread_cond_destroy(&COND_alarm);
pthread_mutex_unlock(&LOCK_alarm);
if (!alarm_thread_running) /* Safety */
{
pthread_mutex_destroy(&LOCK_alarm);
pthread_cond_destroy(&COND_alarm);
}
} }
} }
else else
...@@ -505,17 +500,15 @@ void thr_alarm_info(ALARM_INFO *info) ...@@ -505,17 +500,15 @@ void thr_alarm_info(ALARM_INFO *info)
ARGSUSED ARGSUSED
*/ */
#if THR_CLIENT_ALARM != SIGALRM || defined(USE_ALARM_THREAD)
static sig_handler thread_alarm(int sig) static sig_handler thread_alarm(int sig)
{ {
#ifdef MAIN #ifdef MAIN
printf("thread_alarm\n"); fflush(stdout); printf("thread_alarm\n"); fflush(stdout);
#endif #endif
#ifdef DONT_REMEMBER_SIGNAL #ifdef DONT_REMEMBER_SIGNAL
sigset(sig,thread_alarm); /* int. thread system calls */ my_sigset(sig, thread_alarm); /* int. thread system calls */
#endif #endif
} }
#endif
#ifdef HAVE_TIMESPEC_TS_SEC #ifdef HAVE_TIMESPEC_TS_SEC
...@@ -916,7 +909,7 @@ static sig_handler print_signal_warning(int sig) ...@@ -916,7 +909,7 @@ static sig_handler print_signal_warning(int sig)
printf("Warning: Got signal %d from thread %s\n",sig,my_thread_name()); printf("Warning: Got signal %d from thread %s\n",sig,my_thread_name());
fflush(stdout); fflush(stdout);
#ifdef DONT_REMEMBER_SIGNAL #ifdef DONT_REMEMBER_SIGNAL
sigset(sig,print_signal_warning); /* int. thread system calls */ my_sigset(sig, print_signal_warning); /* int. thread system calls */
#endif #endif
#ifndef OS2 #ifndef OS2
if (sig == SIGALRM) if (sig == SIGALRM)
...@@ -943,9 +936,7 @@ static void *signal_hand(void *arg __attribute__((unused))) ...@@ -943,9 +936,7 @@ static void *signal_hand(void *arg __attribute__((unused)))
sigaddset(&set,SIGINT); sigaddset(&set,SIGINT);
sigaddset(&set,SIGQUIT); sigaddset(&set,SIGQUIT);
sigaddset(&set,SIGTERM); sigaddset(&set,SIGTERM);
#if THR_CLIENT_ALARM != SIGHUP
sigaddset(&set,SIGHUP); sigaddset(&set,SIGHUP);
#endif
#ifdef SIGTSTP #ifdef SIGTSTP
sigaddset(&set,SIGTSTP); sigaddset(&set,SIGTSTP);
#endif #endif
...@@ -957,7 +948,7 @@ static void *signal_hand(void *arg __attribute__((unused))) ...@@ -957,7 +948,7 @@ static void *signal_hand(void *arg __attribute__((unused)))
#endif #endif
#endif /* OS2 */ #endif /* OS2 */
printf("server alarm: %d thread alarm: %d\n", printf("server alarm: %d thread alarm: %d\n",
THR_SERVER_ALARM,THR_CLIENT_ALARM); THR_SERVER_ALARM, thd_lib_detected == THD_LIB_LT ? SIGALRM : SIGUSR1);
DBUG_PRINT("info",("Starting signal and alarm handling thread")); DBUG_PRINT("info",("Starting signal and alarm handling thread"));
for(;;) for(;;)
{ {
...@@ -1029,11 +1020,11 @@ int main(int argc __attribute__((unused)),char **argv __attribute__((unused))) ...@@ -1029,11 +1020,11 @@ int main(int argc __attribute__((unused)),char **argv __attribute__((unused)))
sigaddset(&set,SIGTSTP); sigaddset(&set,SIGTSTP);
#endif #endif
sigaddset(&set,THR_SERVER_ALARM); sigaddset(&set,THR_SERVER_ALARM);
sigdelset(&set,THR_CLIENT_ALARM); sigdelset(&set, thd_lib_detected == THD_LIB_LT ? SIGALRM : SIGUSR1);
(void) pthread_sigmask(SIG_SETMASK,&set,NULL); (void) pthread_sigmask(SIG_SETMASK,&set,NULL);
#ifdef NOT_USED #ifdef NOT_USED
sigemptyset(&set); sigemptyset(&set);
sigaddset(&set,THR_CLIENT_ALARM); sigaddset(&set, thd_lib_detected == THD_LIB_LT ? SIGALRM : SIGUSR1);
VOID(pthread_sigmask(SIG_UNBLOCK, &set, (sigset_t*) 0)); VOID(pthread_sigmask(SIG_UNBLOCK, &set, (sigset_t*) 0));
#endif #endif
#endif /* OS2 */ #endif /* OS2 */
...@@ -1083,8 +1074,8 @@ int main(int argc __attribute__((unused)),char **argv __attribute__((unused))) ...@@ -1083,8 +1074,8 @@ int main(int argc __attribute__((unused)),char **argv __attribute__((unused)))
} }
} }
pthread_mutex_unlock(&LOCK_thread_count); pthread_mutex_unlock(&LOCK_thread_count);
end_thr_alarm(1);
thr_alarm_info(&alarm_info); thr_alarm_info(&alarm_info);
end_thr_alarm(1);
printf("Main_thread: Alarms: %u max_alarms: %u next_alarm_time: %lu\n", printf("Main_thread: Alarms: %u max_alarms: %u next_alarm_time: %lu\n",
alarm_info.active_alarms, alarm_info.max_used_alarms, alarm_info.active_alarms, alarm_info.max_used_alarms,
alarm_info.next_alarm_time); alarm_info.next_alarm_time);
......
sql/mysqld.cc
View file @ 454c763c
...@@ -177,12 +177,6 @@ inline void reset_floating_point_exceptions() ...@@ -177,12 +177,6 @@ inline void reset_floating_point_exceptions()
} /* cplusplus */ } /* cplusplus */
#if defined(HAVE_LINUXTHREADS)
#define THR_KILL_SIGNAL SIGINT
#else
#define THR_KILL_SIGNAL SIGUSR2 // Can't use this with LinuxThreads
#endif
#ifdef HAVE_GLIBC2_STYLE_GETHOSTBYNAME_R #ifdef HAVE_GLIBC2_STYLE_GETHOSTBYNAME_R
#include <sys/types.h> #include <sys/types.h>
#else #else
...@@ -505,6 +499,7 @@ static void clean_up(bool print_message); ...@@ -505,6 +499,7 @@ static void clean_up(bool print_message);
static void clean_up_mutexes(void); static void clean_up_mutexes(void);
static int test_if_case_insensitive(const char *dir_name); static int test_if_case_insensitive(const char *dir_name);
static void create_pid_file(); static void create_pid_file();
static uint get_thread_lib(void);
/**************************************************************************** /****************************************************************************
** Code to end mysqld ** Code to end mysqld
...@@ -544,7 +539,8 @@ static void close_connections(void) ...@@ -544,7 +539,8 @@ static void close_connections(void)
DBUG_PRINT("info",("Waiting for select_thread")); DBUG_PRINT("info",("Waiting for select_thread"));
#ifndef DONT_USE_THR_ALARM #ifndef DONT_USE_THR_ALARM
if (pthread_kill(select_thread,THR_CLIENT_ALARM)) if (pthread_kill(select_thread,
thd_lib_detected == THD_LIB_LT ? SIGALRM : SIGUSR1))
break; // allready dead break; // allready dead
#endif #endif
set_timespec(abstime, 2); set_timespec(abstime, 2);
...@@ -844,7 +840,7 @@ extern "C" sig_handler print_signal_warning(int sig) ...@@ -844,7 +840,7 @@ extern "C" sig_handler print_signal_warning(int sig)
sig,my_thread_id()); sig,my_thread_id());
} }
#ifdef DONT_REMEMBER_SIGNAL #ifdef DONT_REMEMBER_SIGNAL
sigset(sig,print_signal_warning); /* int. thread system calls */ my_sigset(sig, print_signal_warning); /* int. thread system calls */
#endif #endif
#if !defined(__WIN__) && !defined(OS2) && !defined(__NETWARE__) #if !defined(__WIN__) && !defined(OS2) && !defined(__NETWARE__)
if (sig == SIGALRM) if (sig == SIGALRM)
...@@ -1841,8 +1837,11 @@ static void init_signals(void) ...@@ -1841,8 +1837,11 @@ static void init_signals(void)
DBUG_ENTER("init_signals"); DBUG_ENTER("init_signals");
if (test_flags & TEST_SIGINT) if (test_flags & TEST_SIGINT)
sigset(THR_KILL_SIGNAL,end_thread_signal); {
sigset(THR_SERVER_ALARM,print_signal_warning); // Should never be called! my_sigset(thd_lib_detected == THD_LIB_LT ? SIGINT : SIGUSR2,
end_thread_signal);
}
my_sigset(THR_SERVER_ALARM, print_signal_warning); // Should never be called!
if (!(test_flags & TEST_NO_STACKTRACE) || (test_flags & TEST_CORE_ON_SIGNAL)) if (!(test_flags & TEST_NO_STACKTRACE) || (test_flags & TEST_CORE_ON_SIGNAL))
{ {
...@@ -1877,7 +1876,7 @@ static void init_signals(void) ...@@ -1877,7 +1876,7 @@ static void init_signals(void)
#endif #endif
(void) sigemptyset(&set); (void) sigemptyset(&set);
#ifdef THREAD_SPECIFIC_SIGPIPE #ifdef THREAD_SPECIFIC_SIGPIPE
sigset(SIGPIPE,abort_thread); my_sigset(SIGPIPE, abort_thread);
sigaddset(&set,SIGPIPE); sigaddset(&set,SIGPIPE);
#else #else
(void) signal(SIGPIPE,SIG_IGN); // Can't know which thread (void) signal(SIGPIPE,SIG_IGN); // Can't know which thread
...@@ -1903,8 +1902,12 @@ static void init_signals(void) ...@@ -1903,8 +1902,12 @@ static void init_signals(void)
#endif #endif
sigaddset(&set,THR_SERVER_ALARM); sigaddset(&set,THR_SERVER_ALARM);
if (test_flags & TEST_SIGINT) if (test_flags & TEST_SIGINT)
sigdelset(&set,THR_KILL_SIGNAL); // May be SIGINT {
sigdelset(&set,THR_CLIENT_ALARM); // For alarms // May be SIGINT
sigdelset(&set, thd_lib_detected == THD_LIB_LT ? SIGINT : SIGUSR2);
}
// For alarms
sigdelset(&set, thd_lib_detected == THD_LIB_LT ? SIGALRM : SIGUSR1);
sigprocmask(SIG_SETMASK,&set,NULL); sigprocmask(SIG_SETMASK,&set,NULL);
pthread_sigmask(SIG_SETMASK,&set,NULL); pthread_sigmask(SIG_SETMASK,&set,NULL);
DBUG_VOID_RETURN; DBUG_VOID_RETURN;
...@@ -1959,23 +1962,19 @@ extern "C" void *signal_hand(void *arg __attribute__((unused))) ...@@ -1959,23 +1962,19 @@ extern "C" void *signal_hand(void *arg __attribute__((unused)))
*/ */
init_thr_alarm(max_connections + init_thr_alarm(max_connections +
global_system_variables.max_insert_delayed_threads + 10); global_system_variables.max_insert_delayed_threads + 10);
#if SIGINT != THR_KILL_SIGNAL if (thd_lib_detected != THD_LIB_LT && test_flags & TEST_SIGINT)
if (test_flags & TEST_SIGINT)
{ {
(void) sigemptyset(&set); // Setup up SIGINT for debug (void) sigemptyset(&set); // Setup up SIGINT for debug
(void) sigaddset(&set,SIGINT); // For debugging (void) sigaddset(&set,SIGINT); // For debugging
(void) pthread_sigmask(SIG_UNBLOCK,&set,NULL); (void) pthread_sigmask(SIG_UNBLOCK,&set,NULL);
} }
#endif
(void) sigemptyset(&set); // Setup up SIGINT for debug (void) sigemptyset(&set); // Setup up SIGINT for debug
#ifdef USE_ONE_SIGNAL_HAND #ifdef USE_ONE_SIGNAL_HAND
(void) sigaddset(&set,THR_SERVER_ALARM); // For alarms (void) sigaddset(&set,THR_SERVER_ALARM); // For alarms
#endif #endif
#ifndef IGNORE_SIGHUP_SIGQUIT #ifndef IGNORE_SIGHUP_SIGQUIT
(void) sigaddset(&set,SIGQUIT); (void) sigaddset(&set,SIGQUIT);
#if THR_CLIENT_ALARM != SIGHUP
(void) sigaddset(&set,SIGHUP); (void) sigaddset(&set,SIGHUP);
#endif
#endif #endif
(void) sigaddset(&set,SIGTERM); (void) sigaddset(&set,SIGTERM);
(void) sigaddset(&set,SIGTSTP); (void) sigaddset(&set,SIGTSTP);
...@@ -2236,8 +2235,8 @@ int main(int argc, char **argv) ...@@ -2236,8 +2235,8 @@ int main(int argc, char **argv)
MY_INIT(argv[0]); // init my_sys library & pthreads MY_INIT(argv[0]); // init my_sys library & pthreads
tzset(); // Set tzname tzset(); // Set tzname
thd_lib_detected= get_thread_lib();
start_time=time((time_t*) 0); start_time=time((time_t*) 0);
#ifdef OS2 #ifdef OS2
{ {
// fix timezone for daylight saving // fix timezone for daylight saving
...@@ -5549,6 +5548,22 @@ static void create_pid_file() ...@@ -5549,6 +5548,22 @@ static void create_pid_file()
} }
static uint get_thread_lib(void)
{
char buff[64];
#ifdef _CS_GNU_LIBPTHREAD_VERSION
confstr(_CS_GNU_LIBPTHREAD_VERSION, buff, sizeof(buff));
if (!strncasecmp(buff, "NPTL", 4))
return THD_LIB_NPTL;
else if (!strncasecmp(buff, "linuxthreads", 12))
return THD_LIB_LT;
#endif
return THD_LIB_OTHER;
}
/***************************************************************************** /*****************************************************************************
Instantiate templates Instantiate templates
*****************************************************************************/ *****************************************************************************/
......
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