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Update LinuxThread signal handling. Hide #ifdef hell in ac/signal.h.

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This commit is contained in:
Kurt Zeilenga 1998-11-18 17:45:32 +00:00
parent 499735fec6
commit 3111cfa3bd
6 changed files with 47 additions and 67 deletions
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32
include/ac/signal.h
View File

@ -11,4 +11,36 @@
#define SIGNAL signal
#endif
#if !defined( LDAP_SIGUSR1 ) || !defined( LDAP_SIGUSR2 )
#undef LDAP_SIGUSR1
#undef LDAP_SIGUSR2
# ifndef HAVE_LINUX_THREADS
# define LDAP_SIGUSR1 SIGUSR1
# define LDAP_SIGUSR2 SIGUSR2
# else
/*
LinuxThreads implemented unfortunately uses the only
two signals reserved for user applications. This forces
OpenLDAP to use, hopefullly unused, signals reserved
for other uses.
*/
# if defined( SIGSTKFLT )
# define LDAP_SIGUSR1 SIGSTKFLT
# elif defined ( SIGSYS )
# define LDAP_SIGUSR1 SIGSYS
# endif
# ifdef defined( SIGUNUSED )
# define LDAP_SIGUSR2 SIGUNUSED
# elif defined ( SIGINFO )
# define LDAP_SIGUSR1 SIGINFO
# elif defined ( SIGEMT )
# define LDAP_SIGUSR1 SIGEMT
# endif
# endif
#endif
#endif /* _AC_SIGNAL_H */

36
servers/slapd/daemon.c
View File

@ -127,17 +127,8 @@ slapd_daemon(
}
(void) SIGNAL( SIGPIPE, SIG_IGN );
#ifdef HAVE_LINUX_THREADS
/*
* LinuxThreads are implemented using SIGUSR1/USR2,
* so we'll use SIGSTKFLT and SIGUNUSED
*/
(void) SIGNAL( SIGSTKFLT, do_nothing );
(void) SIGNAL( SIGUNUSED, set_shutdown );
#else /* !linux */
(void) SIGNAL( SIGUSR1, do_nothing );
(void) SIGNAL( SIGUSR2, set_shutdown );
#endif /* !linux */
(void) SIGNAL( LDAP_SIGUSR1, do_nothing );
(void) SIGNAL( LDAP_SIGUSR2, set_shutdown );
(void) SIGNAL( SIGTERM, set_shutdown );
(void) SIGNAL( SIGINT, set_shutdown );
(void) SIGNAL( SIGHUP, set_shutdown );
@ -401,17 +392,8 @@ set_shutdown( int sig )
{
Debug( LDAP_DEBUG_ANY, "slapd got shutdown signal %d\n", sig, 0, 0 );
slapd_shutdown = 1;
#ifdef HAVE_LINUX_THREADS
/*
* LinuxThreads are implemented using SIGUSR1/USR2,
* so we'll use SIGSTKFLT and SIGUNUSED
*/
pthread_kill( listener_tid, SIGSTKFLT );
(void) SIGNAL( SIGUNUSED, set_shutdown );
#else /* !linux */
pthread_kill( listener_tid, SIGUSR1 );
(void) SIGNAL( SIGUSR2, set_shutdown );
#endif /* !linux */
pthread_kill( listener_tid, LDAP_SIGUSR1 );
(void) SIGNAL( LDAP_SIGUSR2, set_shutdown );
(void) SIGNAL( SIGTERM, set_shutdown );
(void) SIGNAL( SIGINT, set_shutdown );
(void) SIGNAL( SIGHUP, set_shutdown );
@ -421,13 +403,5 @@ static void
do_nothing( int sig )
{
Debug( LDAP_DEBUG_TRACE, "slapd got do_nothing signal %d\n", sig, 0, 0 );
#ifdef HAVE_LINUX_THREADS
/*
* LinuxThreads are implemented using SIGUSR1/USR2,
* so we'll use SIGSTKFLT and SIGUNUSED
*/
(void) SIGNAL( SIGSTKFLT, do_nothing );
#else /* !linux */
(void) SIGNAL( SIGUSR1, do_nothing );
#endif /* !linux */
(void) SIGNAL( LDAP_SIGUSR1, do_nothing );
}

8
servers/slapd/result.c
View File

@ -113,11 +113,7 @@ send_ldap_result2(
active_threads--;
conn->c_writewaiter = 1;
#ifdef HAVE_LINUX_THREADS
pthread_kill( listener_tid, SIGSTKFLT );
#else /* !linux */
pthread_kill( listener_tid, SIGUSR1 );
#endif /* !linux */
pthread_kill( listener_tid, LDAP_SIGUSR1 );
pthread_cond_wait( &conn->c_wcv, &active_threads_mutex );
pthread_mutex_unlock( &active_threads_mutex );
@ -348,7 +344,7 @@ send_search_entry(
pthread_mutex_lock( &active_threads_mutex );
active_threads--;
conn->c_writewaiter = 1;
pthread_kill( listener_tid, SIGUSR1 );
pthread_kill( listener_tid, LDAP_SIGUSR1 );
pthread_cond_wait( &conn->c_wcv, &active_threads_mutex );
pthread_mutex_unlock( &active_threads_mutex );

2
servers/slurpd/admin.c
View File

@ -39,5 +39,5 @@ RETSIGTYPE
do_admin( int sig )
{
sglob->rq->rq_dump( sglob->rq );
(void) SIGNAL( SIGUSR2, do_admin );
(void) SIGNAL( LDAP_SIGUSR2, do_admin );
}

21
servers/slurpd/fm.c
View File

@ -55,13 +55,8 @@ fm(
* SIG(UNUSED|USR2) - causes slurpd to read its administrative interface file.
* (not yet implemented).
*/
#ifdef HAVE_LINUX_THREADS
(void) SIGNAL( SIGSTKFLT, do_nothing );
(void) SIGNAL( SIGUNUSED, do_admin );
#else
(void) SIGNAL( SIGUSR1, do_nothing );
(void) SIGNAL( SIGUSR2, do_admin );
#endif
(void) SIGNAL( LDAP_SIGUSR1, do_nothing );
(void) SIGNAL( LDAP_SIGUSR2, do_admin );
(void) SIGNAL( SIGTERM, set_shutdown );
(void) SIGNAL( SIGINT, set_shutdown );
(void) SIGNAL( SIGHUP, set_shutdown );
@ -140,11 +135,7 @@ set_shutdown(int x)
int i;
sglob->slurpd_shutdown = 1; /* set flag */
#ifdef HAVE_LINUX_THREADS
pthread_kill( sglob->fm_tid, SIGSTKFLT ); /* wake up file mgr */
#else
pthread_kill( sglob->fm_tid, SIGUSR1 ); /* wake up file mgr */
#endif
pthread_kill( sglob->fm_tid, LDAP_SIGUSR1 ); /* wake up file mgr */
sglob->rq->rq_lock( sglob->rq ); /* lock queue */
pthread_cond_broadcast( &(sglob->rq->rq_more) ); /* wake repl threads */
for ( i = 0; i < sglob->num_replicas; i++ ) {
@ -165,11 +156,7 @@ set_shutdown(int x)
RETSIGTYPE
do_nothing(int i)
{
#ifdef HAVE_LINUX_THREADS
(void) SIGNAL( SIGSTKFLT, do_nothing );
#else
(void) SIGNAL( SIGUSR1, do_nothing );
#endif
(void) SIGNAL( LDAP_SIGUSR1, do_nothing );
}

15
servers/slurpd/ri.c
View File

@ -45,11 +45,7 @@ Ri_process(
int rc ;
char *errmsg;
#ifdef HAVE_LINUX_THREADS
(void) SIGNAL( SIGSTKFLT, do_nothing );
#else
(void) SIGNAL( SIGUSR1, do_nothing );
#endif
(void) SIGNAL( LDAP_SIGUSR1, do_nothing );
(void) SIGNAL( SIGPIPE, SIG_IGN );
if ( ri == NULL ) {
Debug( LDAP_DEBUG_ANY, "Error: Ri_process: ri == NULL!\n", 0, 0, 0 );
@ -149,13 +145,8 @@ Ri_wake(
if ( ri == NULL ) {
return;
}
#ifdef HAVE_LINUX_THREADS
pthread_kill( ri->ri_tid, SIGSTKFLT );
(void) SIGNAL( SIGSTKFLT, do_nothing );
#else
pthread_kill( ri->ri_tid, SIGUSR1 );
(void) SIGNAL( SIGUSR1, do_nothing );
#endif
pthread_kill( ri->ri_tid, LDAP_SIGUSR1 );
(void) SIGNAL( LDAP_SIGUSR1, do_nothing );
}