Implement reentrant mutexes in xbt_os_thread

[simgrid.git] / src / xbt / swag.c

diff --git a/src/xbt/swag.c b/src/xbt/swag.c
index a87c745..5a11ab7 100644 (file)
--- a/src/xbt/swag.c
+++ b/src/xbt/swag.c
@@ -1,6 +1,5 @@
-/*     $Id$     */
-
-/* Copyright (c) 2004 Arnaud Legrand. All rights reserved.                  */
+/* Copyright (c) 2004, 2005, 2006, 2007, 2008, 2009, 2010. The SimGrid Team.
+ * All rights reserved.                                                     */
 
 /* This program is free software; you can redistribute it and/or modify it
  * under the terms of the license (GNU LGPL) which comes with this package. */
@@ -15,9 +14,6 @@
 #include "xbt/log.h"
 #include "xbt/swag.h"
 
-#define PREV(obj,offset) xbt_swag_getPrev(obj,offset)
-#define NEXT(obj,offset) xbt_swag_getNext(obj,offset)
-
 
 /** Creates a new swag.
  * \param offset where the hookup is located in the structure
@@ -25,7 +21,7 @@
  *
  * Usage : xbt_swag_new(&obj.setA-&obj);
  */
-xbt_swag_t xbt_swag_new(size_t offset)
+XBT_INLINE xbt_swag_t xbt_swag_new(size_t offset)
 {
   xbt_swag_t swag = xbt_new0(s_xbt_swag_t, 1);
 
@@ -40,7 +36,7 @@ xbt_swag_t xbt_swag_new(size_t offset)
  * kilkil a swag but not it's content. If you do not understand why
  * xbt_swag_free should not free its content, don't use swags.
  */
-void xbt_swag_free(xbt_swag_t swag)
+XBT_INLINE void xbt_swag_free(xbt_swag_t swag)
 {
   free(swag);
 }
@@ -52,7 +48,7 @@ void xbt_swag_free(xbt_swag_t swag)
  *
  * Usage : xbt_swag_init(swag,&obj.setA-&obj);
  */
-void xbt_swag_init(xbt_swag_t swag, size_t offset)
+XBT_INLINE void xbt_swag_init(xbt_swag_t swag, size_t offset)
 {
   swag->tail = NULL;
   swag->head = NULL;
@@ -67,7 +63,7 @@ void xbt_swag_init(xbt_swag_t swag, size_t offset)
  *
  * insert \a obj in \a swag
  */
-void xbt_swag_insert(void *obj, xbt_swag_t swag)
+XBT_INLINE void xbt_swag_insert(void *obj, xbt_swag_t swag)
 {
 
   if (xbt_swag_belongs(obj, swag))
@@ -75,15 +71,14 @@ void xbt_swag_insert(void *obj, xbt_swag_t swag)
 
   (swag->count)++;
   if (swag->head == NULL) {
-    xbt_assert0(!(swag->tail), "Inconsistent swag.");
+    xbt_assert(!(swag->tail), "Inconsistent swag.");
     swag->head = obj;
     swag->tail = obj;
     return;
   }
 
-  PREV(obj, swag->offset) = swag->tail;
-  NEXT(PREV(obj, swag->offset), swag->offset) = obj;
-
+  xbt_swag_getPrev(obj, swag->offset) = swag->tail;
+  xbt_swag_getNext(swag->tail, swag->offset) = obj;
   swag->tail = obj;
 }
 
@@ -94,7 +89,7 @@ void xbt_swag_insert(void *obj, xbt_swag_t swag)
  * insert (at the head... you probably had a very good reason to do
  * that, I hope you know what you're doing) \a obj in \a swag
  */
-void xbt_swag_insert_at_head(void *obj, xbt_swag_t swag)
+XBT_INLINE void xbt_swag_insert_at_head(void *obj, xbt_swag_t swag)
 {
 
   if (xbt_swag_belongs(obj, swag))
@@ -102,15 +97,14 @@ void xbt_swag_insert_at_head(void *obj, xbt_swag_t swag)
 
   (swag->count)++;
   if (swag->head == NULL) {
-    xbt_assert0(!(swag->tail), "Inconsistent swag.");
+    xbt_assert(!(swag->tail), "Inconsistent swag.");
     swag->head = obj;
     swag->tail = obj;
     return;
   }
 
-  NEXT(obj, swag->offset) = swag->head;
-  PREV(NEXT(obj, swag->offset), swag->offset) = obj;
-
+  xbt_swag_getNext(obj, swag->offset) = swag->head;
+  xbt_swag_getPrev(swag->head, swag->offset) = obj;
   swag->head = obj;
 }
 
@@ -121,7 +115,7 @@ void xbt_swag_insert_at_head(void *obj, xbt_swag_t swag)
  * insert (at the tail... you probably had a very good reason to do
  * that, I hope you know what you're doing) \a obj in \a swag
  */
-void xbt_swag_insert_at_tail(void *obj, xbt_swag_t swag)
+XBT_INLINE void xbt_swag_insert_at_tail(void *obj, xbt_swag_t swag)
 {
 
   if (xbt_swag_belongs(obj, swag))
@@ -129,15 +123,14 @@ void xbt_swag_insert_at_tail(void *obj, xbt_swag_t swag)
 
   (swag->count)++;
   if (swag->head == NULL) {
-    xbt_assert0(!(swag->tail), "Inconsistent swag.");
+    xbt_assert(!(swag->tail), "Inconsistent swag.");
     swag->head = obj;
     swag->tail = obj;
     return;
   }
 
-  PREV(obj, swag->offset) = swag->tail;
-  NEXT(PREV(obj, swag->offset), swag->offset) = obj;
-
+  xbt_swag_getPrev(obj, swag->offset) = swag->tail;
+  xbt_swag_getNext(swag->tail, swag->offset) = obj;
   swag->tail = obj;
 }
 
@@ -148,7 +141,7 @@ void xbt_swag_insert_at_tail(void *obj, xbt_swag_t swag)
  *
  * removes \a obj from \a swag
  */
-void *xbt_swag_remove(void *obj, xbt_swag_t swag)
+XBT_INLINE void *xbt_swag_remove(void *obj, xbt_swag_t swag)
 {
   size_t offset = swag->offset;
 
@@ -163,19 +156,21 @@ void *xbt_swag_remove(void *obj, xbt_swag_t swag)
       return NULL;
     swag->head = NULL;
     swag->tail = NULL;
-    NEXT(obj, offset) = PREV(obj, offset) = NULL;
+    xbt_swag_getNext(obj, offset) = xbt_swag_getPrev(obj, offset) = NULL;
   } else if (obj == swag->head) {       /* It's the head */
-    swag->head = NEXT(obj, offset);
-    PREV(swag->head, offset) = NULL;
-    NEXT(obj, offset) = NULL;
+    swag->head = xbt_swag_getNext(obj, offset);
+    xbt_swag_getPrev(swag->head, offset) = NULL;
+    xbt_swag_getNext(obj, offset) = NULL;
   } else if (obj == swag->tail) {       /* It's the tail */
-    swag->tail = PREV(obj, offset);
-    NEXT(swag->tail, offset) = NULL;
-    PREV(obj, offset) = NULL;
+    swag->tail = xbt_swag_getPrev(obj, offset);
+    xbt_swag_getNext(swag->tail, offset) = NULL;
+    xbt_swag_getPrev(obj, offset) = NULL;
   } else {                      /* It's in the middle */
-    NEXT(PREV(obj, offset), offset) = NEXT(obj, offset);
-    PREV(NEXT(obj, offset), offset) = PREV(obj, offset);
-    PREV(obj, offset) = NEXT(obj, offset) = NULL;
+    xbt_swag_getNext(xbt_swag_getPrev(obj, offset), offset) =
+        xbt_swag_getNext(obj, offset);
+    xbt_swag_getPrev(xbt_swag_getNext(obj, offset), offset) =
+        xbt_swag_getPrev(obj, offset);
+    xbt_swag_getPrev(obj, offset) = xbt_swag_getNext(obj, offset) = NULL;
   }
   (swag->count)--;
   return obj;
@@ -197,11 +192,11 @@ void *xbt_swag_extract(xbt_swag_t swag)
 
   if (swag->head == swag->tail) {       /* special case */
     swag->head = swag->tail = NULL;
-    PREV(obj, offset) = NEXT(obj, offset) = NULL;
+    xbt_swag_getPrev(obj, offset) = xbt_swag_getNext(obj, offset) = NULL;
   } else {
-    swag->head = NEXT(obj, offset);
-    PREV(swag->head, offset) = NULL;
-    NEXT(obj, offset) = NULL;
+    swag->head = xbt_swag_getNext(obj, offset);
+    xbt_swag_getPrev(swag->head, offset) = NULL;
+    xbt_swag_getNext(obj, offset) = NULL;
   }
   (swag->count)--;
 
@@ -212,22 +207,11 @@ void *xbt_swag_extract(xbt_swag_t swag)
  * \param swag a swag
  * \return the number of objects in \a swag
  */
-int xbt_swag_size(xbt_swag_t swag)
+XBT_INLINE int xbt_swag_size(xbt_swag_t swag)
 {
   return (swag->count);
 }
 
-/**
- * \param obj an object
- * \param swag a swag
- * \return 1 if \a obj is in the \a swag and 0 otherwise
- */
-int xbt_swag_belongs(void *obj, xbt_swag_t swag)
-{
-  return ((NEXT(obj, swag->offset)) || (PREV(obj, swag->offset))
-          || (swag->head == obj));
-}
-
 
 #ifdef SIMGRID_TEST
 
@@ -251,8 +235,8 @@ XBT_TEST_UNIT("basic", test_swag_basic, "Basic usage")
   obj1->name = "Obj 1";
   obj2->name = "Obj 2";
 
-  xbt_test_add0("Basic usage");
-  xbt_test_log3("%p %p %ld\n", obj1, &(obj1->setB),
+  xbt_test_add("Basic usage");
+  xbt_test_log("%p %p %ld\n", obj1, &(obj1->setB),
                 (long) ((char *) &(obj1->setB) - (char *) obj1));
 
   setA = xbt_swag_new(xbt_swag_offset(*obj1, setA));
@@ -266,17 +250,17 @@ XBT_TEST_UNIT("basic", test_swag_basic, "Basic usage")
   xbt_swag_remove(obj1, setB);
   /*  xbt_swag_remove(obj2, setB); */
 
-  xbt_test_add0("Traverse set A");
+  xbt_test_add("Traverse set A");
   xbt_swag_foreach(obj, setA) {
-    xbt_test_log1("Saw: %s", obj->name);
+    xbt_test_log("Saw: %s", obj->name);
   }
 
-  xbt_test_add0("Traverse set B");
+  xbt_test_add("Traverse set B");
   xbt_swag_foreach(obj, setB) {
-    xbt_test_log1("Saw: %s", obj->name);
+    xbt_test_log("Saw: %s", obj->name);
   }
 
-  xbt_test_add0("Ensure set content and length");
+  xbt_test_add("Ensure set content and length");
   xbt_test_assert(xbt_swag_belongs(obj1, setA));
   xbt_test_assert(xbt_swag_belongs(obj2, setA));
 
@@ -288,6 +272,9 @@ XBT_TEST_UNIT("basic", test_swag_basic, "Basic usage")
 
   xbt_swag_free(setA);
   xbt_swag_free(setB);
+
+  xbt_free(obj1);
+  xbt_free(obj2);
 }
 
-#endif /* SIMGRID_TEST */
+#endif                          /* SIMGRID_TEST */