mono/utils/mono-tls.h

   1 /*
   2  * mono-tls.h: Low-level TLS support
   3  *
   4  * Author:
   5  *      Rodrigo Kumpera (kumpera@gmail.com)
   6  *
   7  * Copyright 2011 Novell, Inc (http://www.novell.com)
   8  * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
   9  */
  10
  11 #ifndef __MONO_TLS_H__
  12 #define __MONO_TLS_H__
  13
  14 #include <glib.h>
  15
  16 /* TLS entries used by the runtime */
  17 typedef enum {
  18         /* mono_thread_internal_current () */
  19         TLS_KEY_THREAD = 0,
  20         TLS_KEY_JIT_TLS = 1,
  21         /* mono_domain_get () */
  22         TLS_KEY_DOMAIN = 2,
  23         TLS_KEY_LMF = 3,
  24         TLS_KEY_SGEN_THREAD_INFO = 4,
  25         TLS_KEY_SGEN_TLAB_NEXT_ADDR = 5,
  26         TLS_KEY_SGEN_TLAB_TEMP_END = 6,
  27         TLS_KEY_BOEHM_GC_THREAD = 7,
  28         TLS_KEY_LMF_ADDR = 8,
  29         TLS_KEY_NUM = 9
  30 } MonoTlsKey;
  31
  32 #ifdef HOST_WIN32
  33
  34 #include <windows.h>
  35
  36 #define MonoNativeTlsKey DWORD
  37 #define mono_native_tls_alloc(key,destructor) ((*(key) = TlsAlloc ()) != TLS_OUT_OF_INDEXES && destructor == NULL)
  38 #define mono_native_tls_free TlsFree
  39 #define mono_native_tls_set_value TlsSetValue
  40 #define mono_native_tls_get_value TlsGetValue
  41
  42 #else
  43
  44 #include <pthread.h>
  45
  46 #define MonoNativeTlsKey pthread_key_t
  47 #define mono_native_tls_get_value pthread_getspecific
  48
  49 static inline int
  50 mono_native_tls_alloc (MonoNativeTlsKey *key, void *destructor)
  51 {
  52         return pthread_key_create (key, destructor) == 0;
  53 }
  54
  55 static inline void
  56 mono_native_tls_free (MonoNativeTlsKey key)
  57 {
  58         pthread_key_delete (key);
  59 }
  60
  61 static inline int
  62 mono_native_tls_set_value (MonoNativeTlsKey key, gpointer value)
  63 {
  64         return !pthread_setspecific (key, value);
  65 }
  66
  67 #endif /* HOST_WIN32 */
  68
  69 int mono_tls_key_get_offset (MonoTlsKey key);
  70 void mono_tls_key_set_offset (MonoTlsKey key, int offset);
  71
  72 #endif /* __MONO_TLS_H__ */