src/mapi/mapi/u_current.h

   1 #ifndef _U_CURRENT_H_
   2 #define _U_CURRENT_H_
   3
   4 #ifdef MAPI_GLAPI_CURRENT
   5
   6 #include "glapi/glapi.h"
   7
   8 /* ugly renames to match glapi.h */
   9 #define mapi_table _glapi_table
  10
  11 #define u_current_table_tls _glapi_tls_Dispatch
  12 #define u_current_user_tls _glapi_tls_Context
  13 #define u_current_table _glapi_Dispatch
  14 #define u_current_user _glapi_Context
  15
  16 #define u_current_destroy _glapi_destroy_multithread
  17 #define u_current_init _glapi_check_multithread
  18 #define u_current_set_internal _glapi_set_dispatch
  19 #define u_current_get_internal _glapi_get_dispatch
  20 #define u_current_set_user_internal _glapi_set_context
  21 #define u_current_get_user_internal _glapi_get_context
  22
  23 #define u_current_table_tsd _gl_DispatchTSD
  24
  25 #else /* MAPI_GLAPI_CURRENT */
  26
  27 #include "u_compiler.h"
  28
  29 struct mapi_table;
  30
  31 #ifdef GLX_USE_TLS
  32
  33 extern __thread struct mapi_table *u_current_table_tls
  34     __attribute__((tls_model("initial-exec")));
  35
  36 extern __thread void *u_current_user_tls
  37     __attribute__((tls_model("initial-exec")));
  38
  39 extern const struct mapi_table *u_current_table;
  40 extern const void *u_current_user;
  41
  42 #else /* GLX_USE_TLS */
  43
  44 extern struct mapi_table *u_current_table;
  45 extern void *u_current_user;
  46
  47 #endif /* GLX_USE_TLS */
  48
  49 void
  50 u_current_init(void);
  51
  52 void
  53 u_current_destroy(void);
  54
  55 void
  56 u_current_set_internal(struct mapi_table *tbl);
  57
  58 struct mapi_table *
  59 u_current_get_internal(void);
  60
  61 void
  62 u_current_set_user_internal(void *ptr);
  63
  64 void *
  65 u_current_get_user_internal(void);
  66
  67 static INLINE void
  68 u_current_set(const struct mapi_table *tbl)
  69 {
  70    u_current_set_internal((struct mapi_table *) tbl);
  71 }
  72
  73 static INLINE const struct mapi_table *
  74 u_current_get(void)
  75 {
  76 #ifdef GLX_USE_TLS
  77    return (const struct mapi_table *) u_current_table_tls;
  78 #else
  79    return (likely(u_current_table) ?
  80          (const struct mapi_table *) u_current_table : u_current_get_internal());
  81 #endif
  82 }
  83
  84 static INLINE void
  85 u_current_set_user(void *ptr)
  86 {
  87    u_current_set_internal(ptr);
  88 }
  89
  90 static INLINE void *
  91 u_current_get_user(void)
  92 {
  93 #ifdef GLX_USE_TLS
  94    return u_current_user_tls;
  95 #else
  96    return likely(u_current_user) ? u_current_user : u_current_get_user_internal();
  97 #endif
  98 }
  99
 100 #endif /* MAPI_GLAPI_CURRENT */
 101
 102 #endif /* _U_CURRENT_H_ */