X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/696a185839cb7e7b4974f9dfd05d6e1ed3101815..922974894c47ede2b825a0dfff298a5d21898ac4:/src/simix/smx_vm.c

diff --git a/src/simix/smx_vm.c b/src/simix/smx_vm.c
index 7429d96d40..2191b50cb3 100644
--- a/src/simix/smx_vm.c
+++ b/src/simix/smx_vm.c
@@ -81,6 +81,32 @@ int SIMIX_pre_vm_state(smx_host_t vm){
 	return SIMIX_get_vm_state(vm);
 }
 
+/**
+ * \brief Function to suspend a SIMIX VM host. This function powers off the
+ * VM. All the processes on this VM will be killed. But, the state of the VM is
+ * perserved. We can later start it again.
+ *
+ * \param host the vm host to suspend (a smx_host_t)
+ */
+void SIMIX_vm_suspend(smx_host_t host)
+{
+  /* TODO: check state */
+
+  XBT_DEBUG("%lu processes in the VM", xbt_swag_size(SIMIX_host_priv(host)->process_list));
+
+  smx_process_t smx_process, smx_process_safe;
+  xbt_swag_foreach_safe(smx_process, smx_process_safe, SIMIX_host_priv(host)->process_list) {
+         XBT_DEBUG("suspend %s", SIMIX_host_get_name(host));
+         simcall_process_suspend(smx_process);
+  }
+
+  /* TODO: Using the variable of the MSG layer is not clean. */
+  SIMIX_set_vm_state(host, msg_vm_state_suspended);
+}
+
+void SIMIX_pre_vm_suspend(smx_simcall_t simcall, smx_host_t vm){
+   SIMIX_vm_suspend(vm);
+}
 
 /**
  * \brief Function to shutdown a SIMIX VM host. This function powers off the
@@ -93,15 +119,16 @@ void SIMIX_vm_shutdown(smx_host_t host)
 {
   /* TODO: check state */
 
-  XBT_DEBUG("%lu processes in the VM", xbt_swag_size(SIMIX_host_priv(smx_host)->process_list));
+  XBT_DEBUG("%lu processes in the VM", xbt_swag_size(SIMIX_host_priv(host)->process_list));
 
-  xbt_swag_foreach_safe(smx_process, SIMIX_host_priv(smx_host)->process_list) {
-         XBT_DEBUG("kill %s", SIMIX_host_get_name(smx_host));
+  smx_process_t smx_process, smx_process_safe;
+  xbt_swag_foreach_safe(smx_process, smx_process_safe, SIMIX_host_priv(host)->process_list) {
+         XBT_DEBUG("kill %s", SIMIX_host_get_name(host));
          simcall_process_kill(smx_process);
   }
 
   /* TODO: Using the variable of the MSG layer is not clean. */
-  SIMIX_set_vm_state(vm, msg_vm_state_sleeping);
+  SIMIX_set_vm_state(host, msg_vm_state_sleeping);
 }
 
 void SIMIX_pre_vm_shutdown(smx_simcall_t simcall, smx_host_t vm){