Add a MSG_vm_destroy function to free a virtual machine

[simgrid.git] / src / msg / msg_vm.c

diff --git a/src/msg/msg_vm.c b/src/msg/msg_vm.c
index b31536f..4eb77b0 100644 (file)
--- a/src/msg/msg_vm.c
+++ b/src/msg/msg_vm.c
@@ -65,6 +65,21 @@ int MSG_vm_is_running(msg_vm_t vm) {
  * @bug for now, if a binded process terminates, every VM functions will segfault. Baaaad.
  */
 void MSG_vm_bind(msg_vm_t vm, m_process_t process) {
+       /* check if the process is already in a VM */
+       simdata_process_t simdata = simcall_process_get_data(process);
+       if (simdata->vm) {
+               msg_vm_t old_vm = simdata->vm;
+               int pos = xbt_dynar_search(old_vm->processes,&process);
+               xbt_dynar_remove_at(old_vm->processes,pos, NULL);
+       }
+       /* check if the host is in the right host */
+       if (simdata->m_host != vm->location) {
+               MSG_process_migrate(process,vm->location);
+       }
+       simdata->vm = vm;
+
+       XBT_DEBUG("binding Process %s to %p",MSG_process_get_name(process),vm);
+
   xbt_dynar_push_as(vm->processes,m_process_t,process);
 }
 /** @brief Removes the given process from the given VM, and kill it
@@ -107,7 +122,7 @@ void MSG_vm_suspend(msg_vm_t vm) {
   unsigned int cpt;
   m_process_t process;
   xbt_dynar_foreach(vm->processes,cpt,process) {
-    XBT_INFO("suspend process %s of host %s",MSG_process_get_name(process),MSG_host_get_name(MSG_process_get_host(process)));
+    XBT_DEBUG("suspend process %s of host %s",MSG_process_get_name(process),MSG_host_get_name(MSG_process_get_host(process)));
     MSG_process_suspend(process);
   }
 }
@@ -123,7 +138,7 @@ void MSG_vm_resume(msg_vm_t vm) {
   unsigned int cpt;
   m_process_t process;
   xbt_dynar_foreach(vm->processes,cpt,process) {
-    XBT_INFO("resume process %s of host %s",MSG_process_get_name(process),MSG_host_get_name(MSG_process_get_host(process)));
+       XBT_DEBUG("resume process %s of host %s",MSG_process_get_name(process),MSG_host_get_name(MSG_process_get_host(process)));
     MSG_process_resume(process);
   }
 }
@@ -137,7 +152,24 @@ void MSG_vm_resume(msg_vm_t vm) {
 void MSG_vm_shutdown(msg_vm_t vm) {
   unsigned int cpt;
   m_process_t process;
-  xbt_dynar_foreach(vm->processes,cpt,process) {
-    MSG_process_kill(process);
+  XBT_DEBUG("%d processes in the VM",xbt_dynar_length(vm->processes));
+  while (xbt_dynar_length(vm->processes) > 0) {
+       process = xbt_dynar_get_as(vm->processes,0,m_process_t);
+       MSG_process_kill(process);
   }
 }
+
+/** @brief Destroy a msg_vm_t.
+ *  @ingroup msg_VMs
+ */
+void MSG_vm_destroy(msg_vm_t vm) {
+       unsigned int cpt;
+       m_process_t process;
+       xbt_dynar_foreach(vm->processes,cpt,process) {
+               //FIXME: Slow ?
+               simdata_process_t simdata = simcall_process_get_data(process);
+               simdata->vm = NULL;
+       }
+       xbt_dynar_free(&vm->processes);
+       xbt_free(vm);
+}