2 #if !defined(_INCLUDE_THREAD_H_)
3 #define _INCLUDE_THREAD_H_
11 #include "interrupt.h"
12 #ifdef LISP_FEATURE_GENCGC
13 #include "gencgc-alloc-region.h"
15 struct alloc_region { };
17 #include "genesis/symbol.h"
18 #include "genesis/static-symbols.h"
19 #include "genesis/thread.h"
21 #define THREAD_SLOT_OFFSET_WORDS(c) \
22 (offsetof(struct thread,c)/(sizeof (struct thread *)))
24 union per_thread_data {
26 lispobj dynamic_values[1]; /* actually more like 4000 or so */
29 extern struct thread *all_threads;
30 extern int dynamic_values_bytes;
31 extern struct thread *find_thread_by_pid(pid_t pid);
33 #ifdef LISP_FEATURE_SB_THREAD
34 #define for_each_thread(th) for(th=all_threads;th;th=th->next)
36 /* there's some possibility a SSC could notice this never actually
38 #define for_each_thread(th) for(th=all_threads;th;th=0)
41 static inline lispobj SymbolValue(u32 tagged_symbol_pointer, void *thread) {
42 struct symbol *sym= (struct symbol *)
43 (pointer_sized_uint_t)(tagged_symbol_pointer-OTHER_POINTER_LOWTAG);
44 #ifdef LISP_FEATURE_SB_THREAD
45 if(thread && sym->tls_index) {
47 ((union per_thread_data *)thread)
48 ->dynamic_values[fixnum_value(sym->tls_index)];
49 if(r!=UNBOUND_MARKER_WIDETAG) return r;
54 static inline lispobj SymbolTlValue(u32 tagged_symbol_pointer, void *thread) {
55 struct symbol *sym= (struct symbol *)
56 (pointer_sized_uint_t)(tagged_symbol_pointer-OTHER_POINTER_LOWTAG);
57 #ifdef LISP_FEATURE_SB_THREAD
58 return ((union per_thread_data *)thread)
59 ->dynamic_values[fixnum_value(sym->tls_index)];
65 static inline void SetSymbolValue(u32 tagged_symbol_pointer,lispobj val, void *thread) {
66 struct symbol *sym= (struct symbol *)
67 (pointer_sized_uint_t)(tagged_symbol_pointer-OTHER_POINTER_LOWTAG);
68 #ifdef LISP_FEATURE_SB_THREAD
69 if(thread && sym->tls_index) {
70 lispobj *pr= &(((union per_thread_data *)thread)
71 ->dynamic_values[fixnum_value(sym->tls_index)]);
72 if(*pr!= UNBOUND_MARKER_WIDETAG) {
80 static inline void SetTlSymbolValue(u32 tagged_symbol_pointer,lispobj val, void *thread) {
81 #ifdef LISP_FEATURE_SB_THREAD
82 struct symbol *sym= (struct symbol *)
83 (pointer_sized_uint_t)(tagged_symbol_pointer-OTHER_POINTER_LOWTAG);
84 ((union per_thread_data *)thread)
85 ->dynamic_values[fixnum_value(sym->tls_index)]
88 SetSymbolValue(tagged_symbol_pointer,val,thread) ;
92 static inline os_context_t *get_interrupt_context_for_thread(struct thread *th)
94 return th->interrupt_contexts
95 [fixnum_value(SymbolValue(FREE_INTERRUPT_CONTEXT_INDEX,th)-1)];
98 /* This is clearly per-arch and possibly even per-OS code, but we can't
99 * put it somewhere sensible like x86-linux-os.c because it needs too
100 * much stuff like struct thread and all_threads to be defined, which
101 * usually aren't by that time. So, it's here instead. Sorry */
103 inline static struct thread *arch_os_get_current_thread() {
104 #if defined(LISP_FEATURE_SB_THREAD) && defined (LISP_FEATURE_X86)
105 register struct thread *me=0;
107 __asm__ __volatile__ ("movl %%fs:%c1,%0" : "=r" (me)
108 : "i" (offsetof (struct thread,this)));
116 int arch_os_thread_init(struct thread *thread);
117 extern struct thread *arch_os_get_current_thread();
119 #endif /* _INCLUDE_THREAD_H_ */