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services: Introduce refcounting for processes. 

Signed-off-by: Sebastian Lackner <sebastian@fds-team.de>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Sebastian Lackner 2016-03-16 04:31:31 +01:00 committed by Alexandre Julliard
parent 7fc3107b4c
commit 6617ff24f2
2 changed files with 10 additions and 1 deletions
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9
programs/services/services.c
View File

@ -73,6 +73,7 @@ static DWORD process_create(struct process_entry **entry)
*entry = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(**entry));
if (!*entry)
return ERROR_NOT_ENOUGH_SERVER_MEMORY;
(*entry)->ref_count = 1;
(*entry)->control_pipe = INVALID_HANDLE_VALUE;
/* all other fields are zero */
return ERROR_SUCCESS;
@ -126,7 +127,7 @@ void free_service_entry(struct service_entry *entry)
HeapFree(GetProcessHeap(), 0, entry->description);
HeapFree(GetProcessHeap(), 0, entry->dependOnServices);
HeapFree(GetProcessHeap(), 0, entry->dependOnGroups);
free_process_entry(entry->process);
release_process(entry->process);
HeapFree(GetProcessHeap(), 0, entry);
}
@ -455,6 +456,12 @@ struct service_entry *scmdatabase_find_service_by_displayname(struct scmdatabase
return NULL;
}
void release_process(struct process_entry *process)
{
if (InterlockedDecrement(&process->ref_count) == 0)
free_process_entry(process);
}
void release_service(struct service_entry *service)
{
struct scmdatabase *db = service->db;

2
programs/services/services.h
View File

@ -33,6 +33,7 @@ struct scmdatabase
struct process_entry
{
LONG ref_count;
HANDLE process;
HANDLE control_mutex;
HANDLE control_pipe;
@ -87,6 +88,7 @@ void service_terminate(struct service_entry *service);
/* Process functions */
void release_process(struct process_entry *process);
BOOL process_send_command(struct process_entry *process, const void *data, DWORD size, DWORD *result);
extern HANDLE g_hStartedEvent;