[pypy-commit] pypy stacklet: Improve the tests. They fail. Stacklet bug. Argh. :-(

[arigo]

Author: Armin Rigo <ar...@tunes.org>
Branch: stacklet
Changeset: r46331:45a9786afee3
Date: 2011-08-06 19:54 +0200
http://bitbucket.org/pypy/pypy/changeset/45a9786afee3/

Log:    Improve the tests. They fail. Stacklet bug. Argh. :-(

diff --git a/pypy/translator/c/src/stacklet/Makefile 
b/pypy/translator/c/src/stacklet/Makefile
--- a/pypy/translator/c/src/stacklet/Makefile
+++ b/pypy/translator/c/src/stacklet/Makefile
@@ -12,7 +12,7 @@
        rm -fr run_tests_*_[go]
 
 
-DEBUG = #-DDEBUG_DUMP
+DEBUG = -DDEBUG_DUMP
 
 tests: clean
        make -j1 run-all-tests
diff --git a/pypy/translator/c/src/stacklet/stacklet.c 
b/pypy/translator/c/src/stacklet/stacklet.c
--- a/pypy/translator/c/src/stacklet/stacklet.c
+++ b/pypy/translator/c/src/stacklet/stacklet.c
@@ -69,7 +69,11 @@
 
 /***************************************************************/
 
-static void g_save(struct stacklet_s* g, char* stop)
+static void g_save(struct stacklet_s* g, char* stop
+#ifdef DEBUG_DUMP
+                   , int overwrite_stack_for_debug
+#endif
+                   )
 {
     /* Save more of g's stack into the heap -- at least up to 'stop'
 
@@ -96,6 +100,10 @@
         char *c = (char *)(g + 1);
 #if STACK_DIRECTION == 0
         memcpy(c+sz1, g->stack_start+sz1, sz2-sz1);
+#  ifdef DEBUG_DUMP
+        if (overwrite_stack_for_debug)
+          memset(g->stack_start+sz1, 0xdb, sz2-sz1);
+#  endif
 #else
         xxx;
 #endif
@@ -139,13 +147,21 @@
     while (current != NULL && current->stack_stop <= target_stop) {
         struct stacklet_s *prev = current->stack_prev;
         current->stack_prev = NULL;
-        g_save(current, current->stack_stop);
+        g_save(current, current->stack_stop
+#ifdef DEBUG_DUMP
+               , 1
+#endif
+               );
         current = prev;
     }
 
     /* save a partial stack */
     if (current != NULL && current->stack_start < target_stop)
-        g_save(current, target_stop);
+        g_save(current, target_stop
+#ifdef DEBUG_DUMP
+               , 1
+#endif
+               );
 
     thrd->g_stack_chain_head = current;
 }
@@ -170,7 +186,11 @@
 {
     struct stacklet_thread_s *thrd = (struct stacklet_thread_s *)rawthrd;
     if (g_allocate_source_stacklet(old_stack_pointer, thrd) == 0)
-        g_save(thrd->g_source, thrd->g_current_stack_marker);
+        g_save(thrd->g_source, thrd->g_current_stack_marker
+#ifdef DEBUG_DUMP
+               , 0
+#endif
+               );
     return NULL;
 }
 
diff --git a/pypy/translator/c/src/stacklet/tests.c 
b/pypy/translator/c/src/stacklet/tests.c
--- a/pypy/translator/c/src/stacklet/tests.c
+++ b/pypy/translator/c/src/stacklet/tests.c
@@ -94,11 +94,35 @@
   return h;
 }
 
+typedef struct foo_s {
+  int self;
+  float d;
+  struct foo_s *next;
+} foo_t;
+
 int withdepth(int self, float d)
 {
   int res = 0;
   if (d > 0.0)
-    res = withdepth(self, d - 1.1);
+    {
+      foo_t *foo = malloc(sizeof(foo_t));
+      foo_t *foo2 = malloc(sizeof(foo_t));
+      foo->self = self;
+      foo->d = d;
+      foo->next = foo2;
+      foo2->self = self + 100;
+      foo2->d = d;
+      foo2->next = NULL;
+      res = withdepth(self, d - 1.1);
+      assert(foo->self == self);
+      assert(foo->d    == d);
+      assert(foo->next == foo2);
+      assert(foo2->self == self + 100);
+      assert(foo2->d    == d);
+      assert(foo2->next == NULL);
+      free(foo2);
+      free(foo);
+    }
   else
     {
       stacklet_handle h;
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