#include "xbt/dict.h"
#include "mc/mc.h"
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_vm, simix,
- "Logging specific to SIMIX (vms)");
+//If you need to log some stuffs, just uncomment these two lines and uses XBT_DEBUG for instance
+//XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_vm, simix,
+// "Logging specific to SIMIX (vms)");
+
/* **** create a VM **** */
/**
* \param name name of the host to create
* \param data some user data (may be NULL)
*/
-smx_host_t SIMIX_vm_create(const char *name, smx_host_t phys_host)
+smx_host_t SIMIX_vm_create(const char *name, smx_host_t ind_phys_host)
{
smx_host_priv_t smx_host = xbt_new0(s_smx_host_priv_t, 1);
/* Create surf associated resource */
// TODO change phys_host into the right workstation surf model
- surf_vm_workstation_model->extension.vm_workstation.create(name, phys_host);
+ surf_vm_workstation_model->extension.vm_workstation.create(name, ind_phys_host);
return xbt_lib_get_elm_or_null(host_lib, name);
}
-smx_host_t SIMIX_pre_vm_create(smx_simcall_t simcall, const char *name, smx_host_t phys_host){
- return SIMIX_vm_create(name, phys_host);
+smx_host_t SIMIX_pre_vm_create(smx_simcall_t simcall, const char *name, smx_host_t ind_phys_host){
+ return SIMIX_vm_create(name, ind_phys_host);
}
// TODO add checking code related to overcommitment or not.
return 1;
}
-void SIMIX_vm_start(smx_host_t vm){
+void SIMIX_vm_start(smx_host_t ind_vm){
//TODO only start the VM if you can
- if (can_be_started(vm))
- SIMIX_set_vm_state(vm, msg_vm_state_running);
+ if (can_be_started(ind_vm))
+ SIMIX_set_vm_state(ind_vm, msg_vm_state_running);
else
- THROWF(vm_error, 0, "The VM %s cannot be started", SIMIX_host_get_name(vm));
+ THROWF(vm_error, 0, "The VM %s cannot be started", SIMIX_host_get_name(ind_vm));
}
-void SIMIX_pre_vm_start(smx_simcall_t simcall, smx_host_t vm){
+void SIMIX_pre_vm_start(smx_simcall_t simcall, smx_host_t ind_vm){
SIMIX_vm_start(vm);
}
/* ***** set/get state of a VM ***** */
-void SIMIX_set_vm_state(smx_host_t vm, int state){
- surf_vm_workstation_model->extension.vm_workstation.set_state(vm, state);
+void SIMIX_set_vm_state(smx_host_t ind_vm, int state){
+ surf_vm_workstation_model->extension.vm_workstation.set_state(ind_vm, state);
+}
+void SIMIX_prev_set_vm_state(smx_host_t ind_vm, int state){
+ SIMIX_set_vm_state(ind_vm, state);
+}
+
+int SIMIX_get_vm_state(smx_host_t ind_vm){
+ return surf_vm_workstation_model->extension.vm_workstation.get_state(ind_vm);
}
-void SIMIX_prev_set_vm_state(smx_host_t vm, int state){
- SIMIX_set_vm_state(vm, state);
+int SIMIX_pre_vm_state(smx_host_t ind_vm){
+ return SIMIX_get_vm_state(ind_vm);
}
-int SIMIX_get_vm_state(smx_host_t vm){
- return surf_vm_workstation_model->extension.vm_workstation.get_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 ind_vm)
+{
+ /* TODO: check state */
+
+ XBT_DEBUG("%lu processes in the VM", xbt_swag_size(SIMIX_host_priv(ind_vm)->process_list));
+
+ smx_process_t smx_process, smx_process_safe;
+ xbt_swag_foreach_safe(smx_process, smx_process_safe, SIMIX_host_priv(ind_vm)->process_list) {
+ XBT_DEBUG("suspend %s", SIMIX_host_get_name(ind_vm));
+ simcall_process_suspend(smx_process);
+ }
+
+ /* TODO: Using the variable of the MSG layer is not clean. */
+ SIMIX_set_vm_state(ind_vm, msg_vm_state_suspended);
}
-int SIMIX_pre_vm_state(smx_host_t vm){
- return SIMIX_get_vm_state(vm);
+
+void SIMIX_pre_vm_suspend(smx_simcall_t simcall, smx_host_t ind_vm){
+ SIMIX_vm_suspend(ind_vm);
+}
+
+/**
+ * \brief Function to shutdown 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 shutdown (a smx_host_t)
+ */
+void SIMIX_vm_shutdown(smx_host_t ind_vm)
+{
+ /* TODO: check state */
+
+ XBT_DEBUG("%lu processes in the VM", xbt_swag_size(SIMIX_host_priv(ind_vm)->process_list));
+
+ smx_process_t smx_process, smx_process_safe;
+ xbt_swag_foreach_safe(smx_process, smx_process_safe, SIMIX_host_priv(ind_vm)->process_list) {
+ XBT_DEBUG("kill %s", SIMIX_host_get_name(ind_vm));
+ simcall_process_kill(smx_process);
+ }
+
+ /* TODO: Using the variable of the MSG layer is not clean. */
+ SIMIX_set_vm_state(ind_vm, msg_vm_state_sleeping);
+}
+
+void SIMIX_pre_vm_shutdown(smx_simcall_t simcall, smx_host_t ind_vm){
+ SIMIX_vm_shutdown(ind_vm);
}
/**
*
* \param host the vm host to destroy (a smx_host_t)
*/
-void SIMIX_vm_destroy(smx_host_t host)
+void SIMIX_vm_destroy(smx_host_t ind_vm)
{
/* this code basically performs a similar thing like SIMIX_host_destroy() */
- xbt_assert((host != NULL), "Invalid parameters");
- char *hostname = host->key;
+ xbt_assert((ind_vm != NULL), "Invalid parameters");
+ char *hostname = SIMIX_host_get_name(ind_vm);
- smx_host_priv_t host_priv = SIMIX_host_priv(host);
+ smx_host_priv_t host_priv = SIMIX_host_priv(ind_vm);
/* this will call the registered callback function, i.e., SIMIX_host_destroy(). */
xbt_lib_unset(host_lib, hostname, SIMIX_HOST_LEVEL);
/* jump to vm_ws_destroy(). The surf level resource will be freed. */
- surf_vm_workstation_model->extension.vm_workstation.destroy(host);
+ surf_vm_workstation_model->extension.vm_workstation.destroy(ind_vm);
}
-void SIMIX_pre_vm_destroy(smx_simcall_t simcall, smx_host_t vm){
- SIMIX_vm_destroy(vm);
+void SIMIX_pre_vm_destroy(smx_simcall_t simcall, smx_host_t ind_vm){
+ SIMIX_vm_destroy(ind_vm);
}
