/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
+
+// TODO
+// 1./ check how and where a new VM is added to the list of the hosts
+// 2./ MSG_TRACE can be revisited in order to use the host
+
+
#include "msg_private.h"
#include "xbt/sysdep.h"
#include "xbt/log.h"
return MSG_get_host_by_name(name);
}
-
-/** @brief Returns a newly constructed dynar containing all existing VMs in the system.
- * @ingroup msg_VMs
+/** \ingroup m_vm_management
*
- * Don't forget to free the dynar after use.
+ * \brief Return the name of the #msg_host_t.
+ *
+ * This functions checks whether \a host is a valid pointer or not and return
+ its name.
*/
-xbt_dynar_t MSG_vms_as_dynar(void) {
- xbt_dynar_t res = xbt_dynar_new(sizeof(msg_vm_t),NULL);
- msg_vm_t vm;
- xbt_swag_foreach(vm,msg_global->vms) {
- xbt_dynar_push(res,&vm);
- }
- return res;
+const char *MSG_vm_get_name(msg_vm_t vm) {
+ return MSG_host_get_name(vm);
}
/* **** ******** MSG vm actions ********* **** */
* Please note that a VM is a specific host. Hence, you should give a different name
* for each VM/PM.
*/
-msg_vm_t MSG_vm_create(msg_host_t location, const char *name,
+msg_vm_t MSG_vm_create(msg_host_t ind_host, const char *name,
int core_nb, int mem_cap, int net_cap){
// Note new and vm_workstation refer to the same area (due to the lib/dict appraoch)
msg_vm_t new = NULL;
- void *vm_workstation = NULL;
+ void *ind_vm_workstation = NULL;
// Ask simix to create the surf vm resource
- vm_workstation = simcall_vm_create(name,location);
- new = (msg_vm_t) __MSG_host_create(vm_workstation);
+ ind_vm_workstation = simcall_vm_ws_create(name,ind_host);
+ new = (msg_vm_t) __MSG_host_create(ind_vm_workstation);
MSG_vm_set_property_value(new, "CORE_NB", bprintf("%d", core_nb), free);
MSG_vm_set_property_value(new, "MEM_CAP", bprintf("%d", core_nb), free);
MSG_vm_set_property_value(new, "NET_CAP", bprintf("%d", core_nb), free);
+ XBT_DEBUG("A new VM has been created");
// TODO check whether the vm (i.e the virtual host) has been correctly added into the list of all hosts.
#ifdef HAVE_TRACING
- TRACE_msg_vm_create(name, location);
+ TRACE_msg_vm_create(name, ind_host);
#endif
return new;
* @ingroup msg_VMs
*/
int MSG_vm_is_suspended(msg_vm_t vm) {
- return __MSG_vm_is_state(msg_vm_state_suspended);
+ return __MSG_vm_is_state(vm, msg_vm_state_suspended);
}
/** @brief Returns whether the given VM is currently running
* @ingroup msg_VMs
*/
int MSG_vm_is_running(msg_vm_t vm) {
- return __MSG_vm_is_state(msg_vm_state_running);
-}
-
-// TODO complete the different state
-
-/** @brief Add the given process into the VM.
- * @ingroup msg_VMs
- *
- * Afterward, when the VM is migrated or suspended or whatever, the process will have the corresponding handling, too.
- *
- */
-void MSG_vm_bind(msg_vm_t vm, msg_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,msg_process_t,process);
-}
-/** @brief Removes the given process from the given VM, and kill it
- * @ingroup msg_VMs
- *
- * Will raise a not_found exception if the process were not binded to that VM
- */
-void MSG_vm_unbind(msg_vm_t vm, msg_process_t process) {
- int pos = xbt_dynar_search(vm->processes,process);
- xbt_dynar_remove_at(vm->processes,pos, NULL);
- MSG_process_kill(process);
-}
-
-/** @brief Immediately change the host on which all processes are running.
- * @ingroup msg_VMs
- *
- * No migration cost occurs. If you want to simulate this too, you want to use a
- * MSG_task_send() before or after, depending on whether you want to do cold or hot
- * migration.
- */
-void MSG_vm_migrate(msg_vm_t vm, msg_host_t destination) {
- unsigned int cpt;
- msg_process_t process;
- xbt_dynar_foreach(vm->processes,cpt,process) {
- MSG_process_migrate(process,destination);
- }
- xbt_swag_remove(vm, MSG_host_priv(vm->location)->vms);
- xbt_swag_insert_at_tail(vm, MSG_host_priv(destination)->vms);
-
- #ifdef HAVE_TRACING
- TRACE_msg_vm_change_host(vm,vm->location,destination);
- #endif
-
- vm->location = destination;
-}
-
-/** @brief Immediately suspend the execution of all processes within the given VM.
- * @ingroup msg_VMs
- *
- * No suspension cost occurs. If you want to simulate this too, you want to
- * use a \ref MSG_file_write() before or after, depending on the exact semantic
- * of VM suspend to you.
- */
-void MSG_vm_suspend(msg_vm_t vm) {
- unsigned int cpt;
- msg_process_t process;
- xbt_dynar_foreach(vm->processes,cpt,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);
- }
-
- #ifdef HAVE_TRACING
- TRACE_msg_vm_suspend(vm);
- #endif
-}
-
-
-/** @brief Immediately resumes the execution of all processes within the given VM.
- * @ingroup msg_VMs
- *
- * No resume cost occurs. If you want to simulate this too, you want to
- * use a \ref MSG_file_read() before or after, depending on the exact semantic
- * of VM resume to you.
- */
-void MSG_vm_resume(msg_vm_t vm) {
- unsigned int cpt;
- msg_process_t process;
- xbt_dynar_foreach(vm->processes,cpt,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);
- }
-
- #ifdef HAVE_TRACING
- TRACE_msg_vm_resume(vm);
- #endif
+ return __MSG_vm_is_state(vm, msg_vm_state_running);
}
+// TODO Implement the functions for the different state
void MSG_vm_shutdown(msg_vm_t vm)
{
/* msg_vm_t equals to msg_host_t */
- char *name = simcall_host_get_name(vm);
- smx_host_t smx_host = xbt_lib_get_or_null(host_lib, name, SIMIX_HOST_LEVEL);
- smx_process_t smx_process, smx_process_next;
-
- XBT_DEBUG("%lu processes in the VM", xbt_swag_size(SIMIX_host_priv(smx_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));
- simcall_process_kill(smx_process);
- }
+ simcall_vm_shutdown(vm);
/* taka: not yet confirmed */
#ifdef HAVE_TRACING
TRACE_msg_vm_kill(vm);
#endif
-
- /* TODO: update the state of vm */
-
-#if 0
- while (xbt_dynar_length(vm->processes) > 0) {
- process = xbt_dynar_get_as(vm->processes,0,msg_process_t);
- }
-#endif
-}
-
-
-/**
- * \ingroup msg_VMs
- * \brief Reboot the VM, restarting all the processes in it.
- */
-void MSG_vm_reboot(msg_vm_t vm)
-{
- xbt_dynar_t new_processes = xbt_dynar_new(sizeof(msg_process_t),NULL);
-
- msg_process_t process;
- unsigned int cpt;
-
- xbt_dynar_foreach(vm->processes,cpt,process) {
- msg_process_t new_process = MSG_process_restart(process);
- xbt_dynar_push_as(new_processes,msg_process_t,new_process);
-
- }
-
- xbt_dynar_foreach(new_processes, cpt, process) {
- MSG_vm_bind(vm,process);
- }
-
- xbt_dynar_free(&new_processes);
}
-/** @brief Destroy a msg_vm_t.
- * @ingroup msg_VMs
- */
-void MSG_vm_destroy(msg_vm_t vm) {
- unsigned int cpt;
- msg_process_t process;
- xbt_dynar_foreach(vm->processes,cpt,process) {
- //FIXME: Slow ?
- simdata_process_t simdata = simcall_process_get_data(process);
- simdata->vm = NULL;
- }
-
- #ifdef HAVE_TRACING
- TRACE_msg_vm_end(vm);
- #endif
-
- xbt_dynar_free(&vm->processes);
- xbt_free(vm);
-}
+///** @brief Add the given process into the VM.
+// * @ingroup msg_VMs
+// *
+// * Afterward, when the VM is migrated or suspended or whatever, the process will have the corresponding handling, too.
+// *
+// */
+//void MSG_vm_bind(msg_vm_t vm, msg_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,msg_process_t,process);
+//}
+///** @brief Removes the given process from the given VM, and kill it
+// * @ingroup msg_VMs
+// *
+// * Will raise a not_found exception if the process were not binded to that VM
+// */
+//void MSG_vm_unbind(msg_vm_t vm, msg_process_t process) {
+// int pos = xbt_dynar_search(vm->processes,process);
+// xbt_dynar_remove_at(vm->processes,pos, NULL);
+// MSG_process_kill(process);
+//}
+//
+///** @brief Immediately change the host on which all processes are running.
+// * @ingroup msg_VMs
+// *
+// * No migration cost occurs. If you want to simulate this too, you want to use a
+// * MSG_task_send() before or after, depending on whether you want to do cold or hot
+// * migration.
+// */
+//void MSG_vm_migrate(msg_vm_t vm, msg_host_t destination) {
+// unsigned int cpt;
+// msg_process_t process;
+// xbt_dynar_foreach(vm->processes,cpt,process) {
+// MSG_process_migrate(process,destination);
+// }
+// xbt_swag_remove(vm, MSG_host_priv(vm->location)->vms);
+// xbt_swag_insert_at_tail(vm, MSG_host_priv(destination)->vms);
+//
+// #ifdef HAVE_TRACING
+// TRACE_msg_vm_change_host(vm,vm->location,destination);
+// #endif
+//
+// vm->location = destination;
+//}
+//
+///** @brief Immediately suspend the execution of all processes within the given VM.
+// * @ingroup msg_VMs
+// *
+// * No suspension cost occurs. If you want to simulate this too, you want to
+// * use a \ref MSG_file_write() before or after, depending on the exact semantic
+// * of VM suspend to you.
+// */
+//void MSG_vm_suspend(msg_vm_t vm) {
+// unsigned int cpt;
+// msg_process_t process;
+// xbt_dynar_foreach(vm->processes,cpt,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);
+// }
+//
+// #ifdef HAVE_TRACING
+// TRACE_msg_vm_suspend(vm);
+// #endif
+//}
+//
+//
+///** @brief Immediately resumes the execution of all processes within the given VM.
+// * @ingroup msg_VMs
+// *
+// * No resume cost occurs. If you want to simulate this too, you want to
+// * use a \ref MSG_file_read() before or after, depending on the exact semantic
+// * of VM resume to you.
+// */
+//void MSG_vm_resume(msg_vm_t vm) {
+// unsigned int cpt;
+// msg_process_t process;
+// xbt_dynar_foreach(vm->processes,cpt,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);
+// }
+//
+// #ifdef HAVE_TRACING
+// TRACE_msg_vm_resume(vm);
+// #endif
+//}
+//
+//
+///**
+// * \ingroup msg_VMs
+// * \brief Reboot the VM, restarting all the processes in it.
+// */
+//void MSG_vm_reboot(msg_vm_t vm)
+//{
+// xbt_dynar_t new_processes = xbt_dynar_new(sizeof(msg_process_t),NULL);
+//
+// msg_process_t process;
+// unsigned int cpt;
+//
+// xbt_dynar_foreach(vm->processes,cpt,process) {
+// msg_process_t new_process = MSG_process_restart(process);
+// xbt_dynar_push_as(new_processes,msg_process_t,new_process);
+//
+// }
+//
+// xbt_dynar_foreach(new_processes, cpt, process) {
+// MSG_vm_bind(vm,process);
+// }
+//
+// xbt_dynar_free(&new_processes);
+//}
+//
+///** @brief Destroy a msg_vm_t.
+// * @ingroup msg_VMs
+// */
+//void MSG_vm_destroy(msg_vm_t vm)
+//{
+// simcall_vm_destroy(vm);
+//
+//#if 0
+// unsigned int cpt;
+// msg_process_t process;
+// xbt_dynar_foreach(vm->processes,cpt,process) {
+// //FIXME: Slow ?
+// simdata_process_t simdata = simcall_process_get_data(process);
+// simdata->vm = NULL;
+// }
+//
+// #ifdef HAVE_TRACING
+// TRACE_msg_vm_end(vm);
+// #endif
+//
+//
+// xbt_dynar_free(&vm->processes);
+// xbt_free(vm);
+//#endif
+//}
