2 * wapi-private.h: internal definitions of handles and shared memory layout
5 * Dick Porter (dick@ximian.com)
7 * (C) 2002-2006 Novell, Inc.
10 #ifndef _WAPI_PRIVATE_H_
11 #define _WAPI_PRIVATE_H_
17 #include <mono/io-layer/handles.h>
18 #include <mono/io-layer/io.h>
20 /* Increment this whenever an incompatible change is made to the
21 * shared handle structure.
23 #define _WAPI_HANDLE_VERSION 12
37 WAPI_HANDLE_NAMEDMUTEX,
39 WAPI_HANDLE_NAMEDEVENT,
43 extern const char *_wapi_handle_typename[];
45 #define _WAPI_SHARED_HANDLE(type) (type == WAPI_HANDLE_PROCESS || \
46 type == WAPI_HANDLE_NAMEDMUTEX || \
47 type == WAPI_HANDLE_NAMEDSEM || \
48 type == WAPI_HANDLE_NAMEDEVENT)
50 #define _WAPI_FD_HANDLE(type) (type == WAPI_HANDLE_FILE || \
51 type == WAPI_HANDLE_CONSOLE || \
52 type == WAPI_HANDLE_SOCKET || \
53 type == WAPI_HANDLE_PIPE)
55 #define _WAPI_SHARED_NAMESPACE(type) (type == WAPI_HANDLE_NAMEDMUTEX || \
56 type == WAPI_HANDLE_NAMEDSEM || \
57 type == WAPI_HANDLE_NAMEDEVENT)
61 gchar name[MAX_PATH + 1];
62 } WapiSharedNamespace;
65 WAPI_HANDLE_CAP_WAIT=0x01,
66 WAPI_HANDLE_CAP_SIGNAL=0x02,
67 WAPI_HANDLE_CAP_OWN=0x04,
68 WAPI_HANDLE_CAP_SPECIAL_WAIT=0x08
69 } WapiHandleCapability;
73 void (*close)(gpointer handle, gpointer data);
75 /* SignalObjectAndWait */
76 void (*signal)(gpointer signal);
78 /* Called by WaitForSingleObject and WaitForMultipleObjects,
79 * with the handle locked (shared handles aren't locked.)
80 * Returns TRUE if ownership was established, false otherwise.
82 gboolean (*own_handle)(gpointer handle);
84 /* Called by WaitForSingleObject and WaitForMultipleObjects, if the
85 * handle in question is "ownable" (ie mutexes), to see if the current
86 * thread already owns this handle
88 gboolean (*is_owned)(gpointer handle);
90 /* Called by WaitForSingleObject and WaitForMultipleObjects,
91 * if the handle in question needs a special wait function
92 * instead of using the normal handle signal mechanism.
93 * Returns the WaitForSingleObject return code.
95 guint32 (*special_wait)(gpointer handle, guint32 timeout, gboolean alertable);
97 /* Called by WaitForSingleObject and WaitForMultipleObjects,
98 * if the handle in question needs some preprocessing before the
101 void (*prewait)(gpointer handle);
104 #include <mono/io-layer/event-private.h>
105 #include <mono/io-layer/io-private.h>
106 #include <mono/io-layer/mutex-private.h>
107 #include <mono/io-layer/semaphore-private.h>
108 #include <mono/io-layer/socket-private.h>
109 #include <mono/io-layer/thread-private.h>
110 #include <mono/io-layer/process-private.h>
112 struct _WapiHandle_shared_ref
114 /* This will be split 16:16 with the shared file segment in
115 * the top half, when I implement space increases
120 #define _WAPI_HANDLE_INITIAL_COUNT 256
122 struct _WapiHandleUnshared
127 mono_mutex_t signal_mutex;
128 pthread_cond_t signal_cond;
132 struct _WapiHandle_event event;
133 struct _WapiHandle_file file;
134 struct _WapiHandle_find find;
135 struct _WapiHandle_mutex mutex;
136 struct _WapiHandle_sem sem;
137 struct _WapiHandle_socket sock;
138 struct _WapiHandle_thread thread;
139 struct _WapiHandle_shared_ref shared;
143 struct _WapiHandleShared
148 volatile gboolean signalled;
152 struct _WapiHandle_process process;
153 struct _WapiHandle_namedmutex namedmutex;
154 struct _WapiHandle_namedsem namedsem;
155 struct _WapiHandle_namedevent namedevent;
159 #define _WAPI_SHARED_SEM_NAMESPACE 0
160 /*#define _WAPI_SHARED_SEM_COLLECTION 1*/
161 #define _WAPI_SHARED_SEM_FILESHARE 2
162 #define _WAPI_SHARED_SEM_SHARED_HANDLES 3
163 #define _WAPI_SHARED_SEM_PROCESS_COUNT_LOCK 6
164 #define _WAPI_SHARED_SEM_PROCESS_COUNT 7
165 #define _WAPI_SHARED_SEM_COUNT 8 /* Leave some future expansion space */
167 struct _WapiHandleSharedLayout
169 volatile guint32 collection_count;
170 volatile key_t sem_key;
172 struct _WapiHandleShared handles[_WAPI_HANDLE_INITIAL_COUNT];
175 #define _WAPI_FILESHARE_SIZE 102400
177 struct _WapiFileShare
179 #ifdef WAPI_FILE_SHARE_PLATFORM_EXTRA_DATA
180 WAPI_FILE_SHARE_PLATFORM_EXTRA_DATA
191 typedef struct _WapiFileShare _WapiFileShare;
193 struct _WapiFileShareLayout
197 struct _WapiFileShare share_info[_WAPI_FILESHARE_SIZE];
202 #define _WAPI_HANDLE_INVALID (gpointer)-1
204 #endif /* _WAPI_PRIVATE_H_ */