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34 * Thread local data abstraction, using pthreads on Unix and the TlsXXX
38 #include "gssapiP_eap.h"
40 /* Clean up thread-local data; called on thread detach */
42 destroyThreadLocalData(struct gss_eap_thread_local_data *tld)
44 if (tld->statusInfo != NULL)
45 gssEapDestroyStatusInfo(tld->statusInfo);
46 if (tld->krbContext != NULL)
47 gssEapDestroyKrbContext(tld->krbContext);
54 * This is the tls index returned by TlsAlloc() on process init.
55 * Each thread, on thread attach in DllMain(), allocates its thread-local
56 * data and uses this index with TlsSetValue() to store it.
57 * It can then subsequently be retrieved with TlsGetValue().
59 static DWORD tlsIndex;
61 /* Access thread-local data */
62 struct gss_eap_thread_local_data *
63 gssEapGetThreadLocalData(void)
65 return TlsGetValue(tlsIndex);
69 DllMain(HINSTANCE hDLL, /* DLL module handle */
70 DWORD reason, /* reason called */
71 LPVOID reserved) /* reserved */
73 struct gss_eap_thread_local_data *tlsData;
76 case DLL_PROCESS_ATTACH:
77 /* Allocate a TLS index. */
78 gssEapInitiatorInit();
79 tlsIndex = TlsAlloc();
80 if (tlsIndex == TLS_OUT_OF_INDEXES)
82 /* No break: Initialize the index for first thread.*/
83 case DLL_THREAD_ATTACH:
84 /* Initialize the TLS index for this thread. */
85 tlsData = GSSEAP_CALLOC(1, sizeof(*tlsData));
87 TlsSetValue(tlsIndex, tlsData);
89 case DLL_THREAD_DETACH:
90 /* Release the allocated memory for this thread. */
91 tlsData = TlsGetValue(tlsIndex);
92 if (tlsData != NULL) {
93 destroyThreadLocalData(tlsData);
94 TlsSetValue(tlsIndex, NULL);
97 case DLL_PROCESS_DETACH:
98 /* Release the allocated memory for this thread. */
99 tlsData = TlsGetValue(tlsIndex);
101 destroyThreadLocalData(tlsData);
102 /* Release the TLS index. */
111 UNREFERENCED_PARAMETER(hDLL);
112 UNREFERENCED_PARAMETER(reserved);
117 /* pthreads implementation */
119 static GSSEAP_THREAD_ONCE tldKeyOnce = GSSEAP_ONCE_INITIALIZER;
120 static GSSEAP_THREAD_KEY tldKey;
123 pthreadDestroyThreadLocalData(void *arg)
125 struct gss_eap_thread_local_data* tld = arg;
128 destroyThreadLocalData(tld);
132 createThreadLocalDataKey(void)
134 GSSEAP_KEY_CREATE(&tldKey, pthreadDestroyThreadLocalData);
137 struct gss_eap_thread_local_data *
138 gssEapGetThreadLocalData()
140 struct gss_eap_thread_local_data *tld;
142 GSSEAP_ONCE(&tldKeyOnce, createThreadLocalDataKey);
144 tld = GSSEAP_GETSPECIFIC(tldKey);
146 tld = GSSEAP_CALLOC(1, sizeof(*tld));
150 GSSEAP_SETSPECIFIC(tldKey, tld);