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-rw-r--r--generic/tclIO.h17
1 files changed, 4 insertions, 13 deletions
diff --git a/generic/tclIO.h b/generic/tclIO.h
index 1e89878..58e7ae8 100644
--- a/generic/tclIO.h
+++ b/generic/tclIO.h
@@ -85,18 +85,8 @@ typedef struct ChannelBuffer {
#define CHANNELBUFFER_DEFAULT_SIZE (1024 * 4)
-/*
- * Structure to record a close callback. One such record exists for each close
- * callback registered for a channel.
- */
-
-typedef struct CloseCallback {
- Tcl_CloseProc *proc; /* The procedure to call. */
- ClientData clientData; /* Arbitrary one-word data to pass to the
- * callback. */
- struct CloseCallback *nextPtr;
- /* For chaining close callbacks. */
-} CloseCallback;
+/* Foward declaration */
+struct CloseCallback;
/*
* The following structure describes the information saved from a call to
@@ -195,7 +185,8 @@ typedef struct ChannelState {
* value is the POSIX error code. */
int refCount; /* How many interpreters hold references to
* this IO channel? */
- CloseCallback *closeCbPtr; /* Callbacks registered to be called when the
+ struct CloseCallback *closeCbPtr;
+ /* Callbacks registered to be called when the
* channel is closed. */
char *outputStage; /* Temporary staging buffer used when
* translating EOL before converting from