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-rw-r--r--generic/tclIO.h20
1 files changed, 15 insertions, 5 deletions
diff --git a/generic/tclIO.h b/generic/tclIO.h
index 0ea7d1c..1e02749 100644
--- a/generic/tclIO.h
+++ b/generic/tclIO.h
@@ -44,13 +44,13 @@ typedef struct ChannelBuffer {
int bufLength; /* How big is the buffer? */
struct ChannelBuffer *nextPtr;
/* Next buffer in chain. */
- char buf[4]; /* Placeholder for real buffer. The real
- * buffer occuppies this space + bufSize-4
+ char buf[1]; /* Placeholder for real buffer. The real
+ * buffer occuppies this space + bufSize-1
* bytes. This must be the last field in the
* structure. */
} ChannelBuffer;
-#define CHANNELBUFFER_HEADER_SIZE (sizeof(ChannelBuffer) - 4)
+#define CHANNELBUFFER_HEADER_SIZE TclOffset(ChannelBuffer, buf)
/*
* How much extra space to allocate in buffer to hold bytes from previous
@@ -98,7 +98,7 @@ typedef struct Channel {
struct ChannelState *state; /* Split out state information */
ClientData instanceData; /* Instance-specific data provided by creator
* of channel. */
- Tcl_ChannelType *typePtr; /* Pointer to channel type structure. */
+ const Tcl_ChannelType *typePtr; /* Pointer to channel type structure. */
struct Channel *downChanPtr;/* Refers to channel this one was stacked
* upon. This reference is NULL for normal
* channels. See Tcl_StackChannel. */
@@ -124,7 +124,7 @@ typedef struct Channel {
*/
typedef struct ChannelState {
- CONST char *channelName; /* The name of the channel instance in Tcl
+ const char *channelName; /* The name of the channel instance in Tcl
* commands. Storage is owned by the generic
* IO code, is dynamically allocated. */
int flags; /* ORed combination of the flags defined
@@ -308,6 +308,16 @@ typedef struct ChannelState {
* Used by Channel Tcl_Obj type to
* determine if we have to revalidate
* the channel. */
+#define CHANNEL_CLOSEDWRITE (1<<21) /* Channel write side has been closed.
+ * No further Tcl-level write IO on
+ * the channel is allowed. */
+
+/*
+ * The length of time to wait between synthetic timer events. Must be zero or
+ * bad things tend to happen.
+ */
+
+#define SYNTHETIC_EVENT_TIME 0
/*
* Local Variables: