Cleanup of thread-type (linuxthread or NTPL) detection code

Move get_thread_lib to mysys/my_pthread.c
Set 'thr_client_alarm' to signal number used by thr_alarm to give alarms


include/my_global.h:
  Fixed to be same as in 5.1
include/my_pthread.h:
  Move things around to be more in line with rest of code
mysys/default.c:
  Fixed two wrong pointer incrementations.
mysys/my_pthread.c:
  Cleanup: Use variable thr_client_alarm
mysys/my_thr_init.c:
  Detect thread library at startup.
  Set also thr_client_alarm signal here, so that we get
  it in init_signals() in mysqld
mysys/thr_alarm.c:
  Set thr_client_alarm depending on which thread library we are using
sql/mysqld.cc:
  Move get_thread_lib to mysys/my_pthread.c

1 files changed, 4 insertions, 1 deletions

diff --git a/mysys/my_pthread.c b/mysys/my_pthread.c
index 3eaf27844b2..fd716448e43 100644
--- a/mysys/my_pthread.c
+++ b/mysys/my_pthread.c
@@ -32,6 +32,7 @@
 #endif
 
 uint thd_lib_detected;
+uint thr_client_alarm;
 
 #ifndef my_pthread_setprio
 void my_pthread_setprio(pthread_t thread_id,int prior)
@@ -322,7 +323,9 @@ void *sigwait_thread(void *set_arg)
       sigaction(i, &sact, (struct sigaction*) 0);
     }
   }
-  sigaddset(set, thd_lib_detected == THD_LIB_LT ? SIGALRM : SIGUSR1);
+  /* Ensure that init_thr_alarm() is called */
+  DBUG_ASSERT(thr_client_alarm);
+  sigaddset(set, thr_client_alarm);
   pthread_sigmask(SIG_UNBLOCK,(sigset_t*) set,(sigset_t*) 0);
   alarm_thread=pthread_self();			/* For thr_alarm */