Home | History | Annotate | Line # | Download | only in rpc
mt_misc.c revision 1.1.6.2 
      1 /*	$NetBSD: mt_misc.c,v 1.1.6.2 2001/09/04 02:56:16 nathanw Exp $	*/
      2 
      3 /*
      4  *	Define and initialize MT data for libnsl.
      5  *	The _libnsl_lock_init() function below is the library's .init handler.
      6  */
      7 
      8 /* #pragma ident	"@(#)mt_misc.c	1.24	93/04/29 SMI" */
      9 
     10 #include	"reentrant.h"
     11 #include	<rpc/rpc.h>
     12 #include	<sys/time.h>
     13 #include	<stdlib.h>
     14 #include	<string.h>
     15 
     16 #ifdef _REENTRANT
     17 
     18 /* protects the services list (svc.c) */
     19 rwlock_t	svc_lock = RWLOCK_INITIALIZER;
     20 /* protects svc_fdset and the xports[] array */
     21 rwlock_t	svc_fd_lock = RWLOCK_INITIALIZER;
     22 /* protects the RPCBIND address cache */
     23 rwlock_t	rpcbaddr_cache_lock = RWLOCK_INITIALIZER;
     24 
     25 /* protects authdes cache (svcauth_des.c) */
     26 mutex_t	authdes_lock = MUTEX_INITIALIZER;
     27 /* auth_none.c serialization */
     28 mutex_t	authnone_lock = MUTEX_INITIALIZER;
     29 /* protects the Auths list (svc_auth.c) */
     30 mutex_t	authsvc_lock = MUTEX_INITIALIZER;
     31 /* protects client-side fd lock array */
     32 mutex_t	clnt_fd_lock = MUTEX_INITIALIZER;
     33 /* clnt_raw.c serialization */
     34 mutex_t	clntraw_lock = MUTEX_INITIALIZER;
     35 /* domainname and domain_fd (getdname.c) and default_domain (rpcdname.c) */
     36 mutex_t	dname_lock = MUTEX_INITIALIZER;
     37 /* dupreq variables (svc_dg.c) */
     38 mutex_t	dupreq_lock = MUTEX_INITIALIZER;
     39 /* protects first_time and hostname (key_call.c) */
     40 mutex_t	keyserv_lock = MUTEX_INITIALIZER;
     41 /* serializes rpc_trace() (rpc_trace.c) */
     42 mutex_t	libnsl_trace_lock = MUTEX_INITIALIZER;
     43 /* loopnconf (rpcb_clnt.c) */
     44 mutex_t	loopnconf_lock = MUTEX_INITIALIZER;
     45 /* serializes ops initializations */
     46 mutex_t	ops_lock = MUTEX_INITIALIZER;
     47 /* protects ``port'' static in bindresvport() */
     48 mutex_t	portnum_lock = MUTEX_INITIALIZER;
     49 /* protects proglst list (svc_simple.c) */
     50 mutex_t	proglst_lock = MUTEX_INITIALIZER;
     51 /* serializes clnt_com_create() (rpc_soc.c) */
     52 mutex_t	rpcsoc_lock = MUTEX_INITIALIZER;
     53 /* svc_raw.c serialization */
     54 mutex_t	svcraw_lock = MUTEX_INITIALIZER;
     55 /* xprtlist (svc_generic.c) */
     56 mutex_t	xprtlist_lock = MUTEX_INITIALIZER;
     57 /* serializes calls to public key routines */
     58 mutex_t serialize_pkey = MUTEX_INITIALIZER;
     59 
     60 #endif /* _REENTRANT */
     61 
     62 
     63 #undef	rpc_createerr
     64 
     65 struct rpc_createerr rpc_createerr;
     66 
     67 #ifdef _REENTRANT
     68 static thread_key_t rce_key;
     69 static once_t rce_once = ONCE_INITIALIZER;
     70 
     71 static void
     72 __rpc_createerr_setup(void)
     73 {
     74 
     75 	thr_keycreate(&rce_key, free);
     76 }
     77 #endif /* _REENTRANT */
     78 
     79 struct rpc_createerr*
     80 __rpc_createerr()
     81 {
     82 #ifdef _REENTRANT
     83 	struct rpc_createerr *rce_addr = 0;
     84 	extern int __isthreaded;
     85 
     86 	if (__isthreaded == 0)
     87 		return (&rpc_createerr);
     88 	thr_once(&rce_once, __rpc_createerr_setup);
     89 	rce_addr = thr_getspecific(rce_key);
     90 	if (rce_addr == NULL) {
     91 		rce_addr = (struct rpc_createerr *)
     92 		    malloc(sizeof (struct rpc_createerr));
     93 		thr_setspecific(rce_key, (void *) rce_addr);
     94 		memset(rce_addr, 0, sizeof (struct rpc_createerr));
     95 	}
     96 
     97 	return (rce_addr);
     98 #else
     99 	return &rpc_createerr;
    100 #endif
    101 }
    102 
    103