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authorJason A. Donenfeld <Jason@zx2c4.com>2020-11-02 16:04:33 +0100
committerSimon Rozman <simon@rozman.si>2020-11-02 16:38:56 +0100
commitc20e1683c21a1e281479f3caca1754b39820cd81 (patch)
tree742b13d4dd864676704559e05637f9487f260799 /api/wintun.h
parentapi: statically compile devpkey constants (diff)
downloadwintun-c20e1683c21a1e281479f3caca1754b39820cd81.tar.xz
wintun-c20e1683c21a1e281479f3caca1754b39820cd81.zip
api: separate read-wait handle into other function
Makes the API a bit more clear. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Diffstat (limited to 'api/wintun.h')
-rw-r--r--api/wintun.h20
1 files changed, 13 insertions, 7 deletions
diff --git a/api/wintun.h b/api/wintun.h
index f39e33c..3cd4a47 100644
--- a/api/wintun.h
+++ b/api/wintun.h
@@ -234,18 +234,12 @@ typedef void *WINTUN_SESSION_HANDLE;
*
* @param Session Pointer to a variable to receive Wintun session handle
*
- * @param ReadWait Pointer to receive event handle to wait for available data when reading. Should
- * WintunReceivePackets return ERROR_NO_MORE_ITEMS (after spinning on it for a while under heavy
- * load), wait for this event to become signaled before retrying WintunReceivePackets. Do not call
- * CloseHandle on this event - it is managed by the session.
- *
* @return ERROR_SUCCESS on success; Win32 error code otherwise.
*/
typedef WINTUN_STATUS(WINAPI *WINTUN_START_SESSION_FUNC)(
_In_ WINTUN_ADAPTER_HANDLE Adapter,
_In_ DWORD Capacity,
- _Out_ WINTUN_SESSION_HANDLE *Session,
- _Out_ HANDLE *ReadWait);
+ _Out_ WINTUN_SESSION_HANDLE *Session);
/**
* Ends Wintun session.
@@ -255,6 +249,18 @@ typedef WINTUN_STATUS(WINAPI *WINTUN_START_SESSION_FUNC)(
typedef void(WINAPI *WINTUN_END_SESSION_FUNC)(_In_ WINTUN_SESSION_HANDLE Session);
/**
+ * Gets Wintun session's read-wait event handle.
+ *
+ * @param Session Wintun session handle obtained with WintunStartSession
+ *
+ * @return Pointer to receive event handle to wait for available data when reading. Should
+ * WintunReceivePackets return ERROR_NO_MORE_ITEMS (after spinning on it for a while under heavy
+ * load), wait for this event to become signaled before retrying WintunReceivePackets. Do not call
+ * CloseHandle on this event - it is managed by the session.
+ */
+typedef HANDLE(WINAPI *WINTUN_GET_READ_WAIT_EVENT_FUNC)(_In_ WINTUN_SESSION_HANDLE *Session);
+
+/**
* Maximum IP packet size
*/
#define WINTUN_MAX_IP_PACKET_SIZE 0xFFFF