80 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			80 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			C
		
	
	
	
| /*
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|  * QEMU Guest Agent command state interfaces
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|  *
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|  * Copyright IBM Corp. 2011
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|  *
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|  * Authors:
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|  *  Michael Roth      <mdroth@linux.vnet.ibm.com>
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|  *
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|  * This work is licensed under the terms of the GNU GPL, version 2 or later.
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|  * See the COPYING file in the top-level directory.
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|  */
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| #include "qemu/osdep.h"
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| #include "qga/guest-agent-core.h"
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| 
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| struct GACommandState {
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|     GSList *groups;
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| };
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| 
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| typedef struct GACommandGroup {
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|     void (*init)(void);
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|     void (*cleanup)(void);
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| } GACommandGroup;
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| 
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| /* handle init/cleanup for stateful guest commands */
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| 
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| void ga_command_state_add(GACommandState *cs,
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|                           void (*init)(void),
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|                           void (*cleanup)(void))
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| {
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|     GACommandGroup *cg = g_new0(GACommandGroup, 1);
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|     cg->init = init;
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|     cg->cleanup = cleanup;
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|     cs->groups = g_slist_append(cs->groups, cg);
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| }
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| 
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| static void ga_command_group_init(gpointer opaque, gpointer unused)
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| {
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|     GACommandGroup *cg = opaque;
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| 
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|     g_assert(cg);
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|     if (cg->init) {
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|         cg->init();
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|     }
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| }
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| 
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| void ga_command_state_init_all(GACommandState *cs)
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| {
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|     g_assert(cs);
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|     g_slist_foreach(cs->groups, ga_command_group_init, NULL);
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| }
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| 
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| static void ga_command_group_cleanup(gpointer opaque, gpointer unused)
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| {
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|     GACommandGroup *cg = opaque;
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| 
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|     g_assert(cg);
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|     if (cg->cleanup) {
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|         cg->cleanup();
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|     }
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| }
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| 
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| void ga_command_state_cleanup_all(GACommandState *cs)
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| {
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|     g_assert(cs);
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|     g_slist_foreach(cs->groups, ga_command_group_cleanup, NULL);
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| }
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| 
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| GACommandState *ga_command_state_new(void)
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| {
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|     GACommandState *cs = g_new0(GACommandState, 1);
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|     cs->groups = NULL;
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|     return cs;
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| }
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| 
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| void ga_command_state_free(GACommandState *cs)
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| {
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|     g_slist_free_full(cs->groups, g_free);
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|     g_free(cs);
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| }
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