edits

[cdsspec-compiler.git] / benchmark / read-copy-update / rcu.cc

diff --git a/benchmark/read-copy-update/rcu.cc b/benchmark/read-copy-update/rcu.cc
index 55238821356416a592399795ebc4d98a0ae6fabd..2d517bcf4f06ab110e18d10479d0e2c068878038 100644 (file)
--- a/benchmark/read-copy-update/rcu.cc
+++ b/benchmark/read-copy-update/rcu.cc
@@ -21,7 +21,6 @@
 typedef struct Data {
        int data1;
        int data2;
-       int data3;
 } Data;
 
 atomic<Data*> data;
@@ -30,16 +29,56 @@ atomic<Data*> data;
        @Begin
        @Global_define:
                @DeclareVar:
-                       int data1;
-                       int data2;
-                       int data3;
+                       IntegerList *set;
                @InitVar:
-                       data1 = 0;
-                       data2 = 0;
-                       data3 = 0;
+                       set = createIntegerList();
+                       Data *d = (Data*) MODEL_MALLOC(sizeof(Data));
+                       d->data1 = 0;
+                       d->data2 = 0;
+                       push_back(set, (int64_t) d);
+               @Finalize:
+                       if (set)
+                               destroyIntegerList(set);
+                       return true;
+       @DefineFunc:
+               // This is a trick to get unique id
+               // The testcase should have a unique sum
+               call_id_t getID(int64_t d1, int64_t d2) {
+                       return d1 + d2;
+               }
+       @DefineFunc:
+               bool print(int64_t p) {
+                       Data *d = (Data*) p;
+                       model_print("Elem-> d1 = %d, d2 = %d\n", d->data1, d->data2);
+               }
+               bool equal(int64_t p1, int64_t p2) {
+                       if (!p1 || !p2)
+                               return false;
+                       Data *d1 = (Data*) p1;
+                       Data *d2 = (Data*) p2;
+                       if (d1->data1 == d2->data1 &&
+                               d1->data2 == d2->data2) {
+                               return true;
+                       } else {
+                               return false;
+                       }
+               }
+       @DefineFunc:
+               void _write(int64_t d1, int64_t d2) {
+                       Data *d = (Data*) MODEL_MALLOC(sizeof(Data));
+                       d->data1 = d1;
+                       d->data2 = d2;
+                       push_back(set, (int64_t) d);
+               }
+       @DefineFunc:
+               bool _read(Data *res) {
+                       bool hasElem = has_elem_by_value(set, (int64_t) res, &equal);
+                       return hasElem;
+               }
        @Happens_before:
                Write -> Read
                Write -> Write
+       @Commutativity: Write <-> Read: true
        @End
 */
 
@@ -47,14 +86,17 @@ atomic<Data*> data;
        @Begin
        @Interface: Read
        @Commit_point_set: Read_Success_Point
-       //@ID: isOriginalRead(__RET__) ? 1 : DEFAULT_CALL_ID
+       @ID: getID(__RET__->data1, __RET__->data2)
+       //@Action:
+               //model_print("Read_ID = %d, d1 = %d, d2 = %d\n", getID(__RET__->data1,
+               //      __RET__->data2), __RET__->data1, __RET__->data2);
+               //do_by_value(set, &print);
        @Post_check:
-               data1 == __RET__->data1 &&
-               data2 == __RET__->data2 &&
-               data3 == __RET__->data3
+               _read(__RET__);
        @End
 */
 Data* read() {
+       /**********    SPEC (sync)    **********/
        Data *res = data.load(memory_order_acquire);
        //load_32(&res->data1);
        /**
@@ -63,7 +105,6 @@ Data* read() {
                @Label: Read_Success_Point
                @End
        */
-       //model_print("Read: %d, %d, %d\n", res->data1, res->data2, res->data3);
        return res;
 }
 
@@ -71,23 +112,24 @@ Data* read() {
        @Begin
        @Interface: Write
        @Commit_point_set: Write_Success_Point
+       @ID: getID(d1, d2);
        @Action:
-               data1 += d1;
-               data2 += d2;
-               data3 += d3;
+               //model_print("Write_ID = %d\n", getID(d1, d2));
+               _write(d1, d2);
        @End
 */
-Data* write(int d1, int d2, int d3) {
+Data* write(int d1, int d2) {
        bool succ = false;
        Data *tmp = (Data*) malloc(sizeof(Data));
-       Data *prev = data.load(memory_order_acquire);
        do {
         //store_32(&tmp->data1, prev->data1 + d1);
-        tmp->data1 = prev->data1 + d1;
-           tmp->data2 = prev->data2 + d2;
-           tmp->data3 = prev->data3 + d3;
+               /**********   Inadmissibility    **********/
+               Data *prev = data.load(memory_order_acquire);
+        tmp->data1 = d1;
+           tmp->data2 = d2;
+               /**********   Inadmissibility    **********/
         succ = data.compare_exchange_strong(prev, tmp,
-            memory_order_release, memory_order_acquire);
+            memory_order_release, memory_order_relaxed);
                /**
                        @Begin
                        @Commit_point_define_check: succ
@@ -101,19 +143,20 @@ Data* write(int d1, int d2, int d3) {
 
 
 void threadA(void *arg) {
-       write(1, 0, 0);
+       write(1, 0);
 }
 
 void threadB(void *arg) {
-       write(0, 1, 0);
+       write(0, 2);
 }
 
 void threadC(void *arg) {
-       write(0, 0, 1);
+       write(2, 2);
 }
 
 void threadD(void *arg) {
-       Data *dataC = read();
+       Data *d = read();
+       printf("ThreadD: d1=%d, d2=%d\n", d->data1, d->data2);
 }
 
 int user_main(int argc, char **argv) {
@@ -127,19 +170,17 @@ int user_main(int argc, char **argv) {
        Data *dataInit = (Data*) malloc(sizeof(Data));
        dataInit->data1 = 0;
        dataInit->data2 = 0;
-       dataInit->data3 = 0;
        atomic_init(&data, dataInit);
-       write(0, 0, 0);
 
        thrd_create(&t1, threadA, NULL);
        thrd_create(&t2, threadB, NULL);
        //thrd_create(&t3, threadC, NULL);
-       //thrd_create(&t4, threadD, NULL);
+       thrd_create(&t4, threadD, NULL);
 
        thrd_join(t1);
        thrd_join(t2);
        //thrd_join(t3);
-       //thrd_join(t4);
+       thrd_join(t4);
 
        return 0;
 }