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/*

 * QEMU Guest Agent command state interfaces

 *

 * Copyright IBM Corp. 2011

 *

 * Authors:

 *  Michael Roth      <mdroth@linux.vnet.ibm.com>

 *

 * This work is licensed under the terms of the GNU GPL, version 2 or later.

 * See the COPYING file in the top-level directory.

 */

#include <glib.h>

#include "qga/guest-agent-core.h"

struct GACommandState {

    GSList *groups;

};

typedef struct GACommandGroup {

    void (*init)(void);

    void (*cleanup)(void);

} GACommandGroup;

/* handle init/cleanup for stateful guest commands */

void ga_command_state_add(GACommandState *cs,

                          void (*init)(void),

                          void (*cleanup)(void))

{

    GACommandGroup *cg = qemu_mallocz(sizeof(GACommandGroup));

    cg->init = init;

    cg->cleanup = cleanup;

    cs->groups = g_slist_append(cs->groups, cg);

}

static void ga_command_group_init(gpointer opaque, gpointer unused)

{

    GACommandGroup *cg = opaque;

    g_assert(cg);

    if (cg->init) {

        cg->init();

    }

}

void ga_command_state_init_all(GACommandState *cs)

{

    g_assert(cs);

    g_slist_foreach(cs->groups, ga_command_group_init, NULL);

}

static void ga_command_group_cleanup(gpointer opaque, gpointer unused)

{

    GACommandGroup *cg = opaque;

    g_assert(cg);

    if (cg->cleanup) {

        cg->cleanup();

    }

}

void ga_command_state_cleanup_all(GACommandState *cs)

{

    g_assert(cs);

    g_slist_foreach(cs->groups, ga_command_group_cleanup, NULL);

}

GACommandState *ga_command_state_new(void)

{

    GACommandState *cs = qemu_mallocz(sizeof(GACommandState));

    cs->groups = NULL;

    return cs;

}