X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fruntime%2Fthread.h;h=e62cb2ba1dce34ae97eb175d11d9c31234a33572;hb=aecefb5d1dfdab6b004796c8b0b48fd2ab6643df;hp=cf13ac95bacc9af619ca7a252aef1e32383bfd40;hpb=ce027af4a3f623440d33e7be119fe46caaecee65;p=sbcl.git

diff --git a/src/runtime/thread.h b/src/runtime/thread.h
index cf13ac9..e62cb2b 100644
--- a/src/runtime/thread.h
+++ b/src/runtime/thread.h
@@ -8,7 +8,6 @@
 #include "globals.h"
 #include "runtime.h"
 #include "os.h"
-#include "interrupt.h"
 #ifdef LISP_FEATURE_GENCGC
 #include "gencgc-alloc-region.h"
 #else
@@ -18,11 +17,57 @@ struct alloc_region { };
 #include "genesis/static-symbols.h"
 #include "genesis/thread.h"
 #include "genesis/fdefn.h"
+#include "interrupt.h"
 
 #define STATE_RUNNING (make_fixnum(1))
 #define STATE_SUSPENDED (make_fixnum(2))
 #define STATE_DEAD (make_fixnum(3))
 
+#ifdef LISP_FEATURE_SB_THREAD
+
+/* Only access thread state with blockables blocked. */
+static inline lispobj
+thread_state(struct thread *thread)
+{
+    lispobj state;
+    sigset_t old;
+    block_blockable_signals(0, &old);
+    pthread_mutex_lock(thread->state_lock);
+    state = thread->state;
+    pthread_mutex_unlock(thread->state_lock);
+    thread_sigmask(SIG_SETMASK,&old,0);
+    return state;
+}
+
+static inline void
+set_thread_state(struct thread *thread, lispobj state)
+{
+    sigset_t old;
+    block_blockable_signals(0, &old);
+    pthread_mutex_lock(thread->state_lock);
+    thread->state = state;
+    pthread_cond_broadcast(thread->state_cond);
+    pthread_mutex_unlock(thread->state_lock);
+    thread_sigmask(SIG_SETMASK,&old,0);
+}
+
+static inline void
+wait_for_thread_state_change(struct thread *thread, lispobj state)
+{
+    sigset_t old;
+    block_blockable_signals(0, &old);
+    pthread_mutex_lock(thread->state_lock);
+    while (thread->state == state)
+        pthread_cond_wait(thread->state_cond, thread->state_lock);
+    pthread_mutex_unlock(thread->state_lock);
+    thread_sigmask(SIG_SETMASK,&old,0);
+}
+
+extern pthread_key_t lisp_thread;
+#endif
+
+extern int kill_safely(os_thread_t os_thread, int signal);
+
 #define THREAD_SLOT_OFFSET_WORDS(c) \
  (offsetof(struct thread,c)/(sizeof (struct thread *)))
 
@@ -31,7 +76,7 @@ union per_thread_data {
     lispobj dynamic_values[1];  /* actually more like 4000 or so */
 };
 
-extern struct thread * volatile all_threads;
+extern struct thread *all_threads;
 extern int dynamic_values_bytes;
 
 #if defined(LISP_FEATURE_DARWIN)
@@ -51,6 +96,21 @@ extern int dynamic_values_bytes;
 #define for_each_thread(th) for(th=all_threads;th;th=0)
 #endif
 
+static inline lispobj *
+SymbolValueAddress(u64 tagged_symbol_pointer, void *thread)
+{
+    struct symbol *sym= (struct symbol *)
+        (pointer_sized_uint_t)(tagged_symbol_pointer-OTHER_POINTER_LOWTAG);
+#ifdef LISP_FEATURE_SB_THREAD
+    if(thread && sym->tls_index) {
+        lispobj *r = &(((union per_thread_data *)thread)
+                       ->dynamic_values[(sym->tls_index) >> WORD_SHIFT]);
+        if((*r)!=NO_TLS_VALUE_MARKER_WIDETAG) return r;
+    }
+#endif
+    return &sym->value;
+}
+
 static inline lispobj
 SymbolValue(u64 tagged_symbol_pointer, void *thread)
 {
@@ -60,7 +120,7 @@ SymbolValue(u64 tagged_symbol_pointer, void *thread)
     if(thread && sym->tls_index) {
         lispobj r=
             ((union per_thread_data *)thread)
-            ->dynamic_values[fixnum_value(sym->tls_index)];
+            ->dynamic_values[(sym->tls_index) >> WORD_SHIFT];
         if(r!=NO_TLS_VALUE_MARKER_WIDETAG) return r;
     }
 #endif
@@ -74,7 +134,7 @@ SymbolTlValue(u64 tagged_symbol_pointer, void *thread)
         (pointer_sized_uint_t)(tagged_symbol_pointer-OTHER_POINTER_LOWTAG);
 #ifdef LISP_FEATURE_SB_THREAD
     return ((union per_thread_data *)thread)
-        ->dynamic_values[fixnum_value(sym->tls_index)];
+        ->dynamic_values[(sym->tls_index) >> WORD_SHIFT];
 #else
     return sym->value;
 #endif
@@ -88,7 +148,7 @@ SetSymbolValue(u64 tagged_symbol_pointer,lispobj val, void *thread)
 #ifdef LISP_FEATURE_SB_THREAD
     if(thread && sym->tls_index) {
         lispobj *pr= &(((union per_thread_data *)thread)
-                       ->dynamic_values[fixnum_value(sym->tls_index)]);
+                       ->dynamic_values[(sym->tls_index) >> WORD_SHIFT]);
         if(*pr!=NO_TLS_VALUE_MARKER_WIDETAG) {
             *pr=val;
             return;
@@ -105,7 +165,7 @@ SetTlSymbolValue(u64 tagged_symbol_pointer,lispobj val, void *thread)
     struct symbol *sym= (struct symbol *)
         (pointer_sized_uint_t)(tagged_symbol_pointer-OTHER_POINTER_LOWTAG);
     ((union per_thread_data *)thread)
-        ->dynamic_values[fixnum_value(sym->tls_index)]
+        ->dynamic_values[(sym->tls_index) >> WORD_SHIFT]
         =val;
 #else
     SetSymbolValue(tagged_symbol_pointer,val,thread) ;
@@ -119,12 +179,36 @@ StaticSymbolFunction(lispobj sym)
     return ((struct fdefn *)native_pointer(SymbolValue(sym, 0)))->fun;
 }
 
-static inline
-os_context_t *get_interrupt_context_for_thread(struct thread *th)
-{
-    return th->interrupt_contexts
-        [fixnum_value(SymbolValue(FREE_INTERRUPT_CONTEXT_INDEX,th)-1)];
-}
+/* These are for use during GC, on the current thread, or on prenatal
+ * threads only. */
+#if defined(LISP_FEATURE_SB_THREAD)
+#define get_binding_stack_pointer(thread)       \
+    ((thread)->binding_stack_pointer)
+#define set_binding_stack_pointer(thread,value) \
+    ((thread)->binding_stack_pointer = (lispobj *)(value))
+#define access_control_stack_pointer(thread) \
+    ((thread)->control_stack_pointer)
+#  if !defined(LISP_FEATURE_X86) && !defined(LISP_FEATURE_X86_64)
+#define access_control_frame_pointer(thread) \
+    ((thread)->control_frame_pointer)
+#  endif
+#elif defined(LISP_FEATURE_X86) || defined(LISP_FEATURE_X86_64)
+#define get_binding_stack_pointer(thread)       \
+    SymbolValue(BINDING_STACK_POINTER, thread)
+#define set_binding_stack_pointer(thread,value) \
+    SetSymbolValue(BINDING_STACK_POINTER, (lispobj)(value), thread)
+#define access_control_stack_pointer(thread)    \
+    (current_control_stack_pointer)
+#else
+#define get_binding_stack_pointer(thread)       \
+    (current_binding_stack_pointer)
+#define set_binding_stack_pointer(thread,value) \
+    (current_binding_stack_pointer = (lispobj *)(value))
+#define access_control_stack_pointer(thread) \
+    (current_control_stack_pointer)
+#define access_control_frame_pointer(thread) \
+    (current_control_frame_pointer)
+#endif
 
 #if defined(LISP_FEATURE_SB_THREAD) && defined(LISP_FEATURE_GCC_TLS)
 extern __thread struct thread *current_thread;
@@ -187,6 +271,5 @@ static inline struct thread *arch_os_get_current_thread(void)
 #endif
 
 extern void create_initial_thread(lispobj);
-extern int kill_thread_safely(os_thread_t os_thread, int signo);
 
 #endif /* _INCLUDE_THREAD_H_ */