summaryrefslogtreecommitdiff
path: root/libc/inet/rpc/rpc_thread.c
blob: 90b0a6a2ae071cd9d0ade4b1025c377d0965fc30 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
#define __FORCE_GLIBC
#include <features.h>
#include <stdio.h>
#include <assert.h>
#include <bits/libc-tsd.h>
#include "rpc_private.h"

#ifdef __UCLIBC_HAS_THREADS__

/* Variable used in non-threaded applications or for the first thread.  */
static struct rpc_thread_variables __libc_tsd_RPC_VARS_mem;
static struct rpc_thread_variables *__libc_tsd_RPC_VARS_data =
     &__libc_tsd_RPC_VARS_mem;

extern int __pthread_once (pthread_once_t *__once_control,
			   void (*__init_routine) (void));
asm (".weak __pthread_once");


# define __libc_once_define(CLASS, NAME) \
  CLASS pthread_once_t NAME = PTHREAD_ONCE_INIT

/* Call handler iff the first call.  */
#define __libc_once(ONCE_CONTROL, INIT_FUNCTION) \
  do {									      \
    if (__pthread_once != NULL)						      \
      __pthread_once (&(ONCE_CONTROL), (INIT_FUNCTION));		      \
    else if ((ONCE_CONTROL) == PTHREAD_ONCE_INIT) {			      \
      INIT_FUNCTION ();							      \
      (ONCE_CONTROL) = !PTHREAD_ONCE_INIT;				      \
    }									      \
  } while (0)

/*
 * Task-variable destructor
 */
void
__rpc_thread_destroy (void)
{
	struct rpc_thread_variables *tvp = __rpc_thread_variables();

	if (tvp != NULL && tvp != &__libc_tsd_RPC_VARS_mem) {
		__rpc_thread_svc_cleanup ();
		__rpc_thread_clnt_cleanup ();
		//__rpc_thread_key_cleanup ();
		free (tvp->authnone_private_s);
		free (tvp->clnt_perr_buf_s);
		free (tvp->clntraw_private_s);
		free (tvp->svcraw_private_s);
		free (tvp->authdes_cache_s);
		free (tvp->authdes_lru_s);
		free (tvp);
	}
}


#if 0
#warning fix multithreaded initialization...
/*
 * Initialize RPC multi-threaded operation
 */
static void
rpc_thread_multi (void)
{
  __libc_tsd_set (RPC_VARS, &__libc_tsd_RPC_VARS_mem);
}


struct rpc_thread_variables *
__rpc_thread_variables (void)
{
	__libc_once_define (static, once);
	struct rpc_thread_variables *tvp;

	tvp = __libc_tsd_get (RPC_VARS);
	if (tvp == NULL) {
		__libc_once (once, rpc_thread_multi);
		tvp = __libc_tsd_get (RPC_VARS);
		if (tvp == NULL) {
			tvp = calloc (1, sizeof *tvp);
			if (tvp != NULL)
				__libc_tsd_set (RPC_VARS, tvp);
			else
				tvp = __libc_tsd_RPC_VARS_data;
		}
	}
	return tvp;
}
#else
struct rpc_thread_variables * __rpc_thread_variables (void)
{
    return __libc_tsd_RPC_VARS_data;
}
#endif


/* Global variables If we're single-threaded, or if this is the first
   thread using the variable, use the existing global variable.  This
   provides backwards compatability for existing applications which
   dynamically link against this code.  */
#undef svc_fdset
#undef rpc_createerr
#undef svc_pollfd
#undef svc_max_pollfd

fd_set *
__rpc_thread_svc_fdset (void)
{
	struct rpc_thread_variables *tvp;

	tvp = __rpc_thread_variables ();
	if (tvp == &__libc_tsd_RPC_VARS_mem)
		return &svc_fdset;
	return &tvp->svc_fdset_s;
}

struct rpc_createerr *
__rpc_thread_createerr (void)
{
	struct rpc_thread_variables *tvp;

	tvp = __rpc_thread_variables ();
	if (tvp == &__libc_tsd_RPC_VARS_mem)
		return &rpc_createerr;
	return &tvp->rpc_createerr_s;
}

struct pollfd **
__rpc_thread_svc_pollfd (void)
{
	struct rpc_thread_variables *tvp;

	tvp = __rpc_thread_variables ();
	if (tvp == &__libc_tsd_RPC_VARS_mem)
		return &svc_pollfd;
	return &tvp->svc_pollfd_s;
}

int *
__rpc_thread_svc_max_pollfd (void)
{
	struct rpc_thread_variables *tvp;

	tvp = __rpc_thread_variables ();
	if (tvp == &__libc_tsd_RPC_VARS_mem)
		return &svc_max_pollfd;
	return &tvp->svc_max_pollfd_s;
}
#else

#undef svc_fdset
#undef rpc_createerr
#undef svc_pollfd
#undef svc_max_pollfd

fd_set * __rpc_thread_svc_fdset (void)
{
    extern fd_set svc_fdset;
    return &(svc_fdset);
}

struct rpc_createerr * __rpc_thread_createerr (void)
{
    extern struct rpc_createerr rpc_createerr;
    return &(rpc_createerr);
}

struct pollfd ** __rpc_thread_svc_pollfd (void)
{
    extern struct pollfd *svc_pollfd;
    return &(svc_pollfd);
}

int * __rpc_thread_svc_max_pollfd (void)
{
    extern int svc_max_pollfd;
    return &(svc_max_pollfd);
}

#endif /* __UCLIBC_HAS_THREADS__ */