Upload imbalanced_bug.csv

imbalanced_bug.csv

@@ -3985,112 +3985,65 @@ int main(int argc, const char *argv[])
 	exit(EXIT_SUCCESS);
 }
 ",0
-"#include <stdio.h>
-#include <stdlib.h>
+"#define _GNU_SOURCE /* To get pthread_getattr_np() declaration */
+#include <assert.h>
 #include <pthread.h>
-#include <math.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
 
-#define NUM_THREADS 2			/* default number of threads	*/
+pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
 
-/* Shared global variables. All threads can access them.	  	*/
-float hypotenuse;
-pthread_mutex_t mutexsum;
+void show_stack(pthread_attr_t *attr, pthread_t thread, char *prefix) {
+  size_t stack_size, guard_size;
+  void *stack_addr;
+  int rc;
 
+  rc = pthread_attr_getguardsize(attr, &guard_size);
+  assert(rc == 0);
 
-void *square_side (void *);
+  rc = pthread_attr_getstack(attr, &stack_addr, &stack_size);
+  assert(rc == 0);
 
+  printf(""Thread %s (id=%lu) stack:\\n"", prefix, thread);
+  printf(""\\tstart address\\t= %p\\n"", stack_addr);
+  printf(""\\tend address\\t= %p\\n"", stack_addr + stack_size);
+  printf(""\\tstack size\\t= %.2f MB\\n"", stack_size / 1024.0 / 1024.0);
+  printf(""\\tguard size\\t= %lu B\\n"", guard_size);
+}
 
-int main (int argc, char **argv)
-{
-  int i;				/* loop variable		*/
-  float sides[2];			/* right-angled triangle sides	*/
-  pthread_t *thr_ids;			/* array of thread ids		*/
-
-  switch (argc)				/* check command line arguments	*/
-  {
-    case 3:
-      /* Get the values of the right-angled triangle sides		*/
-      sides[0] = atof (argv[1]);
-      sides[1] = atof (argv[2]);
-      if ((sides[0] < 1) || (sides[1] < 1))
-      {
-	fprintf (stderr, ""Error: wrong values for triangle sides.\\n""
-		 ""Usage:\\n""
-		 ""  %s <side_a> <side_b>\\n""
-		 ""values of sizes should be > 0\\n"",
-		 argv[0]);
-	exit (EXIT_FAILURE);
-      }
-      break;
+void *entry_point(void *arg) {
+  pthread_t thread = pthread_self();
+
+  int rc;
+  pthread_attr_t attr;
+  rc = pthread_getattr_np(thread, &attr);
+  assert(rc == 0);
 
-    default:
-      fprintf (stderr, ""Error: wrong number of parameters.\\n""
-	       ""Usage:\\n""
-	       ""  %s <side_a> <side_b>\\n"",
-	       argv[0]);
-      exit (EXIT_FAILURE);
-  }
-  
-  /* allocate memory for all dynamic data structures			*/
-  thr_ids = (pthread_t *) malloc (NUM_THREADS * sizeof (pthread_t));
-  
-  /* Validate that memory was successfully allocated			*/
-  if (thr_ids == NULL)
-  {
-    fprintf (stderr, ""File: %s, line %d: Can't allocate memory."",
-	     __FILE__, __LINE__);
-    exit (EXIT_FAILURE);
-  }
-  
-  printf (""\\nPythagoras' theorem | a^2 + b^2 = c^2 \\n""); 
-  hypotenuse = 0;
-  
-  /* Initialize the mutex to protect share data (hypotenuse)		*/
-  pthread_mutex_init (&mutexsum, NULL);
-  
-  /* Create the threads	and calculate the squares on the sides		*/
-  pthread_create (&thr_ids[0], NULL, square_side, &sides[0]);
-  pthread_create (&thr_ids[1], NULL, square_side, &sides[1]);
-  
-  /* Using join to syncronize the threads				*/
-  for (i = 0; i < NUM_THREADS; i++)		
-  {
-    pthread_join (thr_ids[i], NULL);
-  }
-  
-  printf (""Hypotenuse is %.2f\\n"", sqrt(hypotenuse)); 
   
-  /* Deallocate any memory or resources associated			*/
-  pthread_mutex_destroy (&mutexsum);
-  free (thr_ids);
+  show_stack(&attr, thread, (char *)arg);
   
-  return EXIT_SUCCESS;
+
+  return NULL;
 }
 
+int main(int argc, char *argv[]) {
+  pthread_t p1, p2;
+  int rc;
 
-/* square_side runs as a thread and calculates the areas of the 
- * square on the side, then sums the value to the hypotenuse.
- * It uses a mutex to protect the hypotenuse and avoid a race
- * conditiong within the threads.
- *
- * Input:		arg		pointer to triangle side value
- * Return value:	none
- *
- */
-void *square_side (void *arg)
-{
-  float side;
+  rc = pthread_create(&p1, NULL, entry_point, ""1"");
+  assert(rc == 0);
+  rc = pthread_create(&p2, NULL, entry_point, ""2"");
+  assert(rc == 0);
 
-  /* Get the value of the triangle side	and print the square 		*/
-  side = *( ( float* )arg );
-  printf (""%.2f^2 = %.2f\\n"", side, side * side); 
-  
-  /* Mutex lock/unlock to safely update the value of hypotenuse		*/
-  pthread_mutex_lock (&mutexsum);
-  hypotenuse += side * side;
-  pthread_mutex_unlock (&mutexsum);
-  
-  pthread_exit (EXIT_SUCCESS);		/* Terminate the thread		*/
+  entry_point(""main"");
+
+  rc = pthread_join(p1, NULL);
+  assert(rc == 0);
+  rc = pthread_join(p2, NULL);
+  assert(rc == 0);
+
+  return 0;
 }
 ",1
 "#include <stdio.h>
@@ -4365,67 +4318,6 @@ int main(int argc, char* argv[]) {
  return 0;
 }
 ",0
-"#define _GNU_SOURCE /* To get pthread_getattr_np() declaration */
-#include <assert.h>
-#include <pthread.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-
-pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
-
-void show_stack(pthread_attr_t *attr, pthread_t thread, char *prefix) {
-  size_t stack_size, guard_size;
-  void *stack_addr;
-  int rc;
-
-  rc = pthread_attr_getguardsize(attr, &guard_size);
-  assert(rc == 0);
-
-  rc = pthread_attr_getstack(attr, &stack_addr, &stack_size);
-  assert(rc == 0);
-
-  printf(""Thread %s (id=%lu) stack:\\n"", prefix, thread);
-  printf(""\\tstart address\\t= %p\\n"", stack_addr);
-  printf(""\\tend address\\t= %p\\n"", stack_addr + stack_size);
-  printf(""\\tstack size\\t= %.2f MB\\n"", stack_size / 1024.0 / 1024.0);
-  printf(""\\tguard size\\t= %lu B\\n"", guard_size);
-}
-
-void *entry_point(void *arg) {
-  pthread_t thread = pthread_self();
-
-  int rc;
-  pthread_attr_t attr;
-  rc = pthread_getattr_np(thread, &attr);
-  assert(rc == 0);
-
-  
-  show_stack(&attr, thread, (char *)arg);
-  
-
-  return NULL;
-}
-
-int main(int argc, char *argv[]) {
-  pthread_t p1, p2;
-  int rc;
-
-  rc = pthread_create(&p1, NULL, entry_point, ""1"");
-  assert(rc == 0);
-  rc = pthread_create(&p2, NULL, entry_point, ""2"");
-  assert(rc == 0);
-
-  entry_point(""main"");
-
-  rc = pthread_join(p1, NULL);
-  assert(rc == 0);
-  rc = pthread_join(p2, NULL);
-  assert(rc == 0);
-
-  return 0;
-}
-",1
 "#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -4678,42 +4570,6 @@ int main(int argc, char **argv) {
 
 ",0
 "#include <stdio.h>
-#include <pthread.h>
-#include <assert.h>
-
-static volatile int counter = 0;
-pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
-
-void *entry_point(void *arg) {
-    printf(""Thread %s: begin\\n"", (char *)arg);
-    
-    for (int i = 0; i < 1e7; ++i) {
-        counter += 1;
-    }
-    
-    printf(""Thread %s: done\\n"", (char *)arg);
-    return NULL;
-}
-
-int main(int argc, char *argv[]) {
-    pthread_t p1, p2;
-    printf(""main: begin with counter = %d\\n"", counter);
-    int rc;
-    rc = pthread_create(&p1, NULL, entry_point, (void *)""A"");
-    assert(rc == 0);
-    rc = pthread_create(&p2, NULL, entry_point, (void *)""B"");
-    assert(rc == 0);
-
-    // join waits for the threads to finish
-    rc = pthread_join(p1, NULL);
-    assert(rc == 0);
-    rc = pthread_join(p2, NULL);
-    assert(rc == 0);
-    printf(""main: done with counter = %d\\n"", counter);
-    return 0;
-}
-",1
-"#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <pthread.h>