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mt_misc.c revision 1.3 
      1 /*	$NetBSD: mt_misc.c,v 1.3 2003/09/09 03:56:40 itojun 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 <sys/cdefs.h>
     11 #if defined(LIBC_SCCS) && !defined(lint)
     12 __RCSID("$NetBSD: mt_misc.c,v 1.3 2003/09/09 03:56:40 itojun Exp $");
     13 #endif
     14 
     15 #include	"reentrant.h"
     16 #include	<rpc/rpc.h>
     17 #include	<sys/time.h>
     18 #include	<stdlib.h>
     19 #include	<string.h>
     20 
     21 #ifdef _REENTRANT
     22 
     23 /* protects the services list (svc.c) */
     24 rwlock_t	svc_lock = RWLOCK_INITIALIZER;
     25 /* protects svc_fdset and the xports[] array */
     26 rwlock_t	svc_fd_lock = RWLOCK_INITIALIZER;
     27 /* protects the RPCBIND address cache */
     28 rwlock_t	rpcbaddr_cache_lock = RWLOCK_INITIALIZER;
     29 
     30 /* protects authdes cache (svcauth_des.c) */
     31 mutex_t	authdes_lock = MUTEX_INITIALIZER;
     32 /* auth_none.c serialization */
     33 mutex_t	authnone_lock = MUTEX_INITIALIZER;
     34 /* protects the Auths list (svc_auth.c) */
     35 mutex_t	authsvc_lock = MUTEX_INITIALIZER;
     36 /* protects client-side fd lock array */
     37 mutex_t	clnt_fd_lock = MUTEX_INITIALIZER;
     38 /* clnt_raw.c serialization */
     39 mutex_t	clntraw_lock = MUTEX_INITIALIZER;
     40 /* domainname and domain_fd (getdname.c) and default_domain (rpcdname.c) */
     41 mutex_t	dname_lock = MUTEX_INITIALIZER;
     42 /* dupreq variables (svc_dg.c) */
     43 mutex_t	dupreq_lock = MUTEX_INITIALIZER;
     44 /* protects first_time and hostname (key_call.c) */
     45 mutex_t	keyserv_lock = MUTEX_INITIALIZER;
     46 /* serializes rpc_trace() (rpc_trace.c) */
     47 mutex_t	libnsl_trace_lock = MUTEX_INITIALIZER;
     48 /* loopnconf (rpcb_clnt.c) */
     49 mutex_t	loopnconf_lock = MUTEX_INITIALIZER;
     50 /* serializes ops initializations */
     51 mutex_t	ops_lock = MUTEX_INITIALIZER;
     52 /* protects ``port'' static in bindresvport() */
     53 mutex_t	portnum_lock = MUTEX_INITIALIZER;
     54 /* protects proglst list (svc_simple.c) */
     55 mutex_t	proglst_lock = MUTEX_INITIALIZER;
     56 /* serializes clnt_com_create() (rpc_soc.c) */
     57 mutex_t	rpcsoc_lock = MUTEX_INITIALIZER;
     58 /* svc_raw.c serialization */
     59 mutex_t	svcraw_lock = MUTEX_INITIALIZER;
     60 /* xprtlist (svc_generic.c) */
     61 mutex_t	xprtlist_lock = MUTEX_INITIALIZER;
     62 /* serializes calls to public key routines */
     63 mutex_t serialize_pkey = MUTEX_INITIALIZER;
     64 
     65 #endif /* _REENTRANT */
     66 
     67 
     68 #undef	rpc_createerr
     69 
     70 struct rpc_createerr rpc_createerr;
     71 
     72 #ifdef _REENTRANT
     73 static thread_key_t rce_key;
     74 static once_t rce_once = ONCE_INITIALIZER;
     75 
     76 static void
     77 __rpc_createerr_setup(void)
     78 {
     79 
     80 	thr_keycreate(&rce_key, free);
     81 }
     82 #endif /* _REENTRANT */
     83 
     84 struct rpc_createerr*
     85 __rpc_createerr()
     86 {
     87 #ifdef _REENTRANT
     88 	struct rpc_createerr *rce_addr = 0;
     89 	extern int __isthreaded;
     90 
     91 	if (__isthreaded == 0)
     92 		return (&rpc_createerr);
     93 	thr_once(&rce_once, __rpc_createerr_setup);
     94 	rce_addr = thr_getspecific(rce_key);
     95 	if (rce_addr == NULL) {
     96 		rce_addr = (struct rpc_createerr *)
     97 		    malloc(sizeof (struct rpc_createerr));
     98 		thr_setspecific(rce_key, (void *) rce_addr);
     99 		memset(rce_addr, 0, sizeof (struct rpc_createerr));
    100 	}
    101 
    102 	return (rce_addr);
    103 #else
    104 	return &rpc_createerr;
    105 #endif
    106 }
    107 
    108