--- a/TaskManager/kernel/ppe/CpuThreads.cc	Sat Jun 25 09:39:45 2011 +0900
+++ b/TaskManager/kernel/ppe/CpuThreads.cc	Mon Jun 27 03:03:55 2011 +0900
@@ -10,7 +10,18 @@
 //SchedExternTask(StartProfile);
 
 
-CpuThreads::CpuThreads(int num, int start_id) : cpu_num(num), id_offset(start_id) {}
+CpuThreads::CpuThreads(int num, int start_id) : cpu_num(num), id_offset(start_id) {
+
+    threads = new pthread_t[cpu_num];
+    args    = new cpu_thread_arg_t[cpu_num];
+
+    for (int i = 0; i < cpu_num; i++) {
+	args[i].cpuid = i + id_offset;
+	args[i].scheduler = new MainScheduler();
+	args[i].run = 0;
+    }
+
+}
 
 CpuThreads::~CpuThreads()
 {
@@ -22,7 +33,6 @@
 
     for (int i = 0; i < cpu_num; i++) {
 		pthread_join(threads[i], NULL);
-		sem_destroy(&sem[i]);
 	}
 
     for (int i = 0; i < cpu_num; i++) {
@@ -31,7 +41,6 @@
 
     delete [] threads;
     delete [] args;
-	delete [] sem;
 }
 
 void *
@@ -49,6 +58,8 @@
     //SchedRegister(ShowTime);
     //SchedRegister(StartProfile);
 
+    argt->run = 1;
+
     c_scheduler->run(new SchedNop());
     c_scheduler->finish();
 
@@ -59,19 +70,14 @@
 //CpuThreads::init()
 CpuThreads::init()
 {
-    threads = new pthread_t[cpu_num];
-    args    = new cpu_thread_arg_t[cpu_num];
-	sem		= new sem_t[cpu_num];
-
     for (int i = 0; i < cpu_num; i++) {
-	args[i].cpuid = i + id_offset;
-	args[i].scheduler = new MainScheduler();
+	pthread_create(&threads[i], NULL,
+		      &cpu_thread_run, (void*)&args[i]);
     }
 
     for (int i = 0; i < cpu_num; i++) {
-	pthread_create(&threads[i], NULL,
-		      &cpu_thread_run, (void*)&args[i]);
-	sem_init(&sem[i], 0, 1);
+    	while (args[i].run == 0){
+    	}
     }
 }
 
@@ -87,19 +93,18 @@
 CpuThreads::get_mail(int cpuid, int count, memaddr *ret)
 {   
     // need synchronization
-	sem_wait(&sem[cpuid]);
     *ret = args[cpuid-id_offset].scheduler->mail_read_from_host();
-	sem_post(&sem[cpuid]);
     return 1;
 }
 
 int
 CpuThreads::has_mail(int cpuid, int count, memaddr *ret)
 {
-    // need synchronization
-	sem_wait(&sem[cpuid]);
-    return  args[cpuid-id_offset].scheduler->has_mail_from_host();
-	sem_post(&sem[cpuid]);
+	if (args[cpuid-id_offset].scheduler->has_mail_from_host() != 0) {
+		return get_mail(cpuid,count,ret);
+	} else {
+		return 0; //mailがないとき0を返す
+	}
 }
 
 /**
@@ -118,12 +123,8 @@
  */
 void
 CpuThreads::send_mail(int cpuid, int num, memaddr *data)
-
 {
-    // need synchronization
-	sem_wait(&sem[cpuid]);
     args[cpuid-id_offset].scheduler->mail_write_from_host(*data);
-	sem_post(&sem[cpuid]);
 }
 
 void