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1 | #include <stdio.h> | |
2 | #include <rpc/rpc.h> | |
3 | #include <assert.h> | |
4 | ||
5 | #include <libc-lock.h> | |
6 | #include <libc-tsd.h> | |
7 | #include <shlib-compat.h> | |
8 | #include <libc-symbols.h> | |
9 | ||
10 | ||
11 | /* Variable used in non-threaded applications or for the first thread. */ | |
12 | static struct rpc_thread_variables __libc_tsd_RPC_VARS_mem; | |
13 | static __thread struct rpc_thread_variables *thread_rpc_vars | |
14 | attribute_tls_model_ie; | |
15 | ||
16 | /* | |
17 | * Task-variable destructor | |
18 | */ | |
19 | void | |
20 | __rpc_thread_destroy (void) | |
21 | { | |
22 | struct rpc_thread_variables *tvp = thread_rpc_vars; | |
23 | ||
24 | if (tvp != NULL) { | |
25 | __rpc_thread_svc_cleanup (); | |
26 | __rpc_thread_clnt_cleanup (); | |
27 | __rpc_thread_key_cleanup (); | |
28 | free (tvp->clnt_perr_buf_s); | |
29 | free (tvp->clntraw_private_s); | |
30 | free (tvp->svcraw_private_s); | |
31 | free (tvp->authdes_cache_s); | |
32 | free (tvp->authdes_lru_s); | |
33 | free (tvp->svc_xports_s); | |
34 | free (tvp->svc_pollfd_s); | |
35 | if (tvp != &__libc_tsd_RPC_VARS_mem) | |
36 | free (tvp); | |
37 | thread_rpc_vars = NULL; | |
38 | } | |
39 | } | |
40 | text_set_element (__libc_subfreeres, __rpc_thread_destroy); | |
41 | ||
42 | /* | |
43 | * Initialize RPC multi-threaded operation | |
44 | */ | |
45 | static void | |
46 | rpc_thread_multi (void) | |
47 | { | |
48 | thread_rpc_vars = &__libc_tsd_RPC_VARS_mem; | |
49 | } | |
50 | ||
51 | ||
52 | struct rpc_thread_variables * | |
53 | __rpc_thread_variables (void) | |
54 | { | |
55 | __libc_once_define (static, once); | |
56 | struct rpc_thread_variables *tvp = thread_rpc_vars; | |
57 | ||
58 | if (tvp == NULL) { | |
59 | __libc_once (once, rpc_thread_multi); | |
60 | tvp = thread_rpc_vars; | |
61 | if (tvp == NULL) { | |
62 | tvp = calloc (1, sizeof *tvp); | |
63 | if (tvp != NULL) | |
64 | thread_rpc_vars = tvp; | |
65 | } | |
66 | } | |
67 | return tvp; | |
68 | } | |
69 | ||
70 | ||
71 | /* Global variables If we're single-threaded, or if this is the first | |
72 | thread using the variable, use the existing global variable. This | |
73 | provides backwards compatibility for existing applications which | |
74 | dynamically link against this code. */ | |
75 | #undef svc_fdset | |
76 | #undef rpc_createerr | |
77 | #undef svc_pollfd | |
78 | #undef svc_max_pollfd | |
79 | ||
80 | fd_set * | |
81 | __rpc_thread_svc_fdset (void) | |
82 | { | |
83 | struct rpc_thread_variables *tvp; | |
84 | ||
85 | tvp = __rpc_thread_variables (); | |
86 | if (tvp == &__libc_tsd_RPC_VARS_mem) | |
87 | return &svc_fdset; | |
88 | return &tvp->svc_fdset_s; | |
89 | } | |
90 | libc_hidden_nolink_sunrpc (__rpc_thread_svc_fdset, GLIBC_2_2_3) | |
91 | ||
92 | struct rpc_createerr * | |
93 | __rpc_thread_createerr (void) | |
94 | { | |
95 | struct rpc_thread_variables *tvp; | |
96 | ||
97 | tvp = __rpc_thread_variables (); | |
98 | if (tvp == &__libc_tsd_RPC_VARS_mem) | |
99 | return &rpc_createerr; | |
100 | return &tvp->rpc_createerr_s; | |
101 | } | |
102 | libc_hidden_nolink_sunrpc (__rpc_thread_createerr, GLIBC_2_2_3) | |
103 | ||
104 | struct pollfd ** | |
105 | __rpc_thread_svc_pollfd (void) | |
106 | { | |
107 | struct rpc_thread_variables *tvp; | |
108 | ||
109 | tvp = __rpc_thread_variables (); | |
110 | if (tvp == &__libc_tsd_RPC_VARS_mem) | |
111 | return &svc_pollfd; | |
112 | return &tvp->svc_pollfd_s; | |
113 | } | |
114 | #ifdef EXPORT_RPC_SYMBOLS | |
115 | libc_hidden_def (__rpc_thread_svc_pollfd) | |
116 | #else | |
117 | libc_hidden_nolink_sunrpc (__rpc_thread_svc_pollfd, GLIBC_2_2_3) | |
118 | #endif | |
119 | ||
120 | int * | |
121 | __rpc_thread_svc_max_pollfd (void) | |
122 | { | |
123 | struct rpc_thread_variables *tvp; | |
124 | ||
125 | tvp = __rpc_thread_variables (); | |
126 | if (tvp == &__libc_tsd_RPC_VARS_mem) | |
127 | return &svc_max_pollfd; | |
128 | return &tvp->svc_max_pollfd_s; | |
129 | } | |
130 | #ifdef EXPORT_RPC_SYMBOLS | |
131 | libc_hidden_def (__rpc_thread_svc_max_pollfd) | |
132 | #else | |
133 | libc_hidden_nolink_sunrpc (__rpc_thread_svc_max_pollfd, GLIBC_2_2_3) | |
134 | #endif |