#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);
}
+static int get_host_property_as_integer(smx_host_t host, const char *name)
+{
+ xbt_dict_t dict = SIMIX_host_get_properties(host);
+
+ char *value = xbt_dict_get_or_null(dict, name);
+ return atoi(value);
+}
+
+
+
/* **** start a VM **** */
-int __can_be_started(smx_host_t vm){
+static int __can_be_started(smx_host_t vm)
+{
// TODO add checking code related to overcommitment or not.
+
+ int overcommit = get_host_property_as_integer(vm, "OverCommit");
+ int core_nb = get_host_property_as_integer(vm, "CORE_NB");
+ int mem_cap = get_host_property_as_integer(vm, "MEM_CAP");
+ int net_cap = get_host_property_as_integer(vm, "NET_CAP");
+
+ /* we need to get other VM objects on this physical host. */
+
+
+
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_vm_set_state(ind_vm, SURF_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){
- SIMIX_vm_start(vm);
+void SIMIX_pre_vm_start(smx_simcall_t simcall, smx_host_t ind_vm)
+{
+ SIMIX_vm_start(ind_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_vm_set_state(smx_host_t ind_vm, int state)
+{
+ surf_vm_workstation_model->extension.vm_workstation.set_state(ind_vm, state);
+}
+
+void SIMIX_pre_vm_set_state(smx_host_t ind_vm, int state)
+{
+ SIMIX_vm_set_state(ind_vm, state);
+}
+
+int SIMIX_vm_get_state(smx_host_t ind_vm)
+{
+ return surf_vm_workstation_model->extension.vm_workstation.get_state(ind_vm);
+}
+
+int SIMIX_pre_vm_get_state(smx_host_t ind_vm)
+{
+ return SIMIX_vm_get_state(ind_vm);
+}
+
+
+/**
+ * \brief Function to migrate a SIMIX VM host.
+ *
+ * \param host the vm host to migrate (a smx_host_t)
+ */
+void SIMIX_vm_migrate(smx_host_t ind_vm, smx_host_t ind_dst_pm)
+{
+ /* TODO: check state */
+
+ /* TODO: Using the variable of the MSG layer is not clean. */
+ SIMIX_vm_set_state(ind_vm, SURF_VM_STATE_MIGRATING);
+
+ /* jump to vm_ws_migrate(). this will update the vm location. */
+ surf_vm_workstation_model->extension.vm_workstation.migrate(ind_vm, ind_dst_pm);
+
+ SIMIX_vm_set_state(ind_vm, SURF_VM_STATE_RUNNING);
+}
+
+void SIMIX_pre_vm_migrate(smx_simcall_t simcall, smx_host_t ind_vm, smx_host_t ind_dst_pm){
+ SIMIX_vm_migrate(ind_vm, ind_dst_pm);
+}
+
+
+/**
+ * \brief Function to get the physical host of the given the SIMIX VM host.
+ *
+ * \param host the vm host to get_phys_host (a smx_host_t)
+ */
+const char *SIMIX_vm_get_phys_host(smx_host_t ind_vm)
+{
+ /* jump to vm_ws_get_phys_host(). this will return the vm name. */
+ return surf_vm_workstation_model->extension.vm_workstation.get_phys_host(ind_vm);
+}
+
+const char *SIMIX_pre_vm_get_phys_host(smx_simcall_t simcall, smx_host_t ind_vm){
+ return SIMIX_vm_get_phys_host(ind_vm);
+}
+
+
+/**
+ * \brief Function to suspend a SIMIX VM host. This function stops the exection of the
+ * VM. All the processes on this VM will pause. The state of the VM is
+ * preserved on memory. We can later resume 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));
+ /* FIXME: calling a simcall from the SIMIX layer is strange. */
+ simcall_process_suspend(smx_process);
+ }
+
+ /* TODO: Using the variable of the MSG layer is not clean. */
+ SIMIX_vm_set_state(ind_vm, SURF_VM_STATE_SUSPENDED);
+}
+
+void SIMIX_pre_vm_suspend(smx_simcall_t simcall, smx_host_t ind_vm){
+ SIMIX_vm_suspend(ind_vm);
+}
+
+
+/**
+ * \brief Function to resume a SIMIX VM host. This function restart the execution of the
+ * VM. All the processes on this VM will run again.
+ *
+ * \param host the vm host to resume (a smx_host_t)
+ */
+void SIMIX_vm_resume(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("resume %s", SIMIX_host_get_name(ind_vm));
+ /* FIXME: calling a simcall from the SIMIX layer is strange. */
+ simcall_process_resume(smx_process);
+ }
+
+ /* TODO: Using the variable of the MSG layer is not clean. */
+ SIMIX_vm_set_state(ind_vm, SURF_VM_STATE_RUNNING);
+}
+
+void SIMIX_pre_vm_resume(smx_simcall_t simcall, smx_host_t ind_vm){
+ SIMIX_vm_resume(ind_vm);
+}
+
+
+/**
+ * \brief Function to save a SIMIX VM host.
+ * This function is the same as vm_suspend, but the state of the VM is saved to the disk, and not preserved on memory.
+ * We can later restore it again.
+ *
+ * \param host the vm host to save (a smx_host_t)
+ */
+void SIMIX_vm_save(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));
+
+ /* TODO: do something at the surf level */
+
+ 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("save %s", SIMIX_host_get_name(ind_vm));
+ /* FIXME: calling a simcall from the SIMIX layer is strange. */
+ simcall_process_suspend(smx_process);
+ }
+
+ /* TODO: Using the variable of the MSG layer is not clean. */
+ SIMIX_vm_set_state(ind_vm, SURF_VM_STATE_SAVED);
}
-void SIMIX_prev_set_vm_state(smx_host_t vm, int state){
- SIMIX_set_vm_state(vm, state);
+
+void SIMIX_pre_vm_save(smx_simcall_t simcall, smx_host_t ind_vm){
+ SIMIX_vm_save(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 restore a SIMIX VM host. This function restart the execution of the
+ * VM. All the processes on this VM will run again.
+ *
+ * \param host the vm host to restore (a smx_host_t)
+ */
+void SIMIX_vm_restore(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));
+
+ /* TODO: do something at the surf level */
+
+ 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("restore %s", SIMIX_host_get_name(ind_vm));
+ /* FIXME: calling a simcall from the SIMIX layer is strange. */
+ simcall_process_resume(smx_process);
+ }
+
+ /* TODO: Using the variable of the MSG layer is not clean. */
+ SIMIX_vm_set_state(ind_vm, SURF_VM_STATE_RUNNING);
}
-int SIMIX_pre_vm_state(smx_host_t vm){
- return SIMIX_get_vm_state(vm);
+
+void SIMIX_pre_vm_restore(smx_simcall_t simcall, smx_host_t ind_vm){
+ SIMIX_vm_restore(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.
+ * preserved on memory. We can later start it again.
*
* \param host the vm host to shutdown (a smx_host_t)
*/
-void SIMIX_vm_shutdown(smx_host_t host)
+void SIMIX_vm_shutdown(smx_host_t ind_vm, smx_process_t issuer)
{
/* 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(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));
- xbt_swag_foreach_safe(smx_process, SIMIX_host_priv(smx_host)->process_list) {
- XBT_DEBUG("kill %s", SIMIX_host_get_name(smx_host));
- simcall_process_kill(smx_process);
+ SIMIX_process_kill(smx_process, issuer);
}
/* TODO: Using the variable of the MSG layer is not clean. */
- SIMIX_set_vm_state(vm, msg_vm_state_sleeping);
+ SIMIX_vm_set_state(ind_vm, SURF_VM_STATE_CREATED);
}
-void SIMIX_pre_vm_shutdown(smx_simcall_t simcall, smx_host_t vm){
- SIMIX_vm_shutdown(vm);
+void SIMIX_pre_vm_shutdown(smx_simcall_t simcall, smx_host_t ind_vm){
+ SIMIX_vm_shutdown(ind_vm, simcall->issuer);
}
+
/**
* \brief Function to destroy a SIMIX VM host.
*
* \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");
+ const 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);
}
