mt_misc.c revision 1.1 1 /* $NetBSD: mt_misc.c,v 1.1 2000/06/02 23:11:11 fvdl 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
15 #ifdef _REENT
16
17 /*
18 * XXX fvdl - this needs to be done right when implementing a thread-safe
19 * libc.
20 */
21
22 rwlock_t svc_lock; /* protects the services list (svc.c) */
23 rwlock_t svc_fd_lock; /* protects svc_fdset and the xports[] array */
24 rwlock_t rpcbaddr_cache_lock; /* protects the RPCBIND address cache */
25 static rwlock_t *rwlock_table[] = {
26 &svc_lock,
27 &svc_fd_lock,
28 &rpcbaddr_cache_lock
29 };
30
31 mutex_t authdes_lock; /* protects authdes cache (svcauth_des.c) */
32 mutex_t authnone_lock; /* auth_none.c serialization */
33 mutex_t authsvc_lock; /* protects the Auths list (svc_auth.c) */
34 mutex_t clnt_fd_lock; /* protects client-side fd lock array */
35 mutex_t clntraw_lock; /* clnt_raw.c serialization */
36 mutex_t dname_lock; /* domainname and domain_fd (getdname.c) */
37 /* and default_domain (rpcdname.c) */
38 mutex_t dupreq_lock; /* dupreq variables (svc_dg.c) */
39 mutex_t keyserv_lock; /* protects first_time and hostname */
40 /* (key_call.c) */
41 mutex_t libnsl_trace_lock; /* serializes rpc_trace() (rpc_trace.c) */
42 mutex_t loopnconf_lock; /* loopnconf (rpcb_clnt.c) */
43 mutex_t ops_lock; /* serializes ops initializations */
44 mutex_t portnum_lock; /* protects ``port'' static in bindresvport() */
45 mutex_t proglst_lock; /* protects proglst list (svc_simple.c) */
46 mutex_t rpcsoc_lock; /* serializes clnt_com_create() (rpc_soc.c) */
47 mutex_t svcraw_lock; /* svc_raw.c serialization */
48 mutex_t tsd_lock; /* protects TSD key creation */
49 mutex_t xprtlist_lock; /* xprtlist (svc_generic.c) */
50 mutex_t serialize_pkey; /* serializes calls to public key routines */
51
52
53 static mutex_t *mutex_table[] = {
54 &authdes_lock,
55 &authnone_lock,
56 &authsvc_lock,
57 &clnt_fd_lock,
58 &clntraw_lock,
59 &dname_lock,
60 &dupreq_lock,
61 &keyserv_lock,
62 &libnsl_trace_lock,
63 &loopnconf_lock,
64 &ops_lock,
65 &portnum_lock,
66 &proglst_lock,
67 &rpcsoc_lock,
68 &svcraw_lock,
69 &tsd_lock,
70 &xprtlist_lock,
71 &serialize_pkey
72 };
73
74 int __rpc_lock_value;
75
76 #pragma init(_libnsl_lock_init)
77
78 void
79 _libnsl_lock_init()
80 {
81 int i;
82
83 /* _thr_main() returns -1 if libthread no linked in */
84
85 if (_thr_main() == -1)
86 lock_value = 0;
87 else
88 lock_value = 1;
89
90 for (i = 0; i < sizeof (mutex_table) / sizeof (mutex_table[0]); i++)
91 mutex_init(mutex_table[i], 0, (void *) 0);
92
93 for (i = 0; i < sizeof (rwlock_table) / sizeof (rwlock_table[0]); i++)
94 rwlock_init(rwlock_table[i], 0, (void *) 0);
95 }
96
97 #endif /* _REENT */
98
99
100 #undef rpc_createerr
101
102 struct rpc_createerr rpc_createerr;
103
104 struct rpc_createerr *
105 __rpc_createerr()
106 {
107 #ifdef _REENT
108 static thread_key_t rce_key = 0;
109 struct rpc_createerr *rce_addr = 0;
110
111 if (_thr_main())
112 return (&rpc_createerr);
113 if (_thr_getspecific(rce_key, (void **) &rce_addr) != 0) {
114 mutex_lock(&tsd_lock);
115 if (_thr_keycreate(&rce_key, free) != 0) {
116 mutex_unlock(&tsd_lock);
117 return (&rpc_createerr);
118 }
119 mutex_unlock(&tsd_lock);
120 }
121 if (!rce_addr) {
122 rce_addr = (struct rpc_createerr *)
123 malloc(sizeof (struct rpc_createerr));
124 if (_thr_setspecific(rce_key, (void *) rce_addr) != 0) {
125 if (rce_addr)
126 free(rce_addr);
127 return (&rpc_createerr);
128 }
129 memset(rce_addr, 0, sizeof (struct rpc_createerr));
130 return (rce_addr);
131 }
132 return (rce_addr);
133 #else
134 return &rpc_createerr;
135 #endif
136 }
137