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struct xvfs_tclfs_channel_id {
Tcl_Channel channel;
struct xvfs_tclfs_instance_info *fsInstanceInfo;
Tcl_Obj *path;
Tcl_WideInt currentOffset;
Tcl_WideInt fileSize;
int eofMarked;
int queuedEvents;
int closed;
};
struct xvfs_tclfs_channel_event {
Tcl_Event tcl;
struct xvfs_tclfs_channel_id *channelInstanceData;
};
static Tcl_ChannelType xvfs_tclfs_channelType;
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if (statRet < 0) {
return(NULL);
}
channelInstanceData = (struct xvfs_tclfs_channel_id *) Tcl_Alloc(sizeof(*channelInstanceData));
channelInstanceData->currentOffset = 0;
channelInstanceData->eofMarked = 0;
channelInstanceData->queuedEvents = 0;
channelInstanceData->closed = 0;
channelInstanceData->channel = NULL;
channelName = Tcl_ObjPrintf("xvfs0x%llx", (unsigned long long) channelInstanceData);
if (!channelName) {
Tcl_Free((char *) channelInstanceData);
return(NULL);
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return(NULL);
}
channelInstanceData->channel = channel;
return(channel);
}
static int xvfs_tclfs_closeChannel(ClientData channelInstanceData_p, Tcl_Interp *interp);
static int xvfs_tclfs_closeChannelEvent(Tcl_Event *event_p, int flags) {
struct xvfs_tclfs_channel_id *channelInstanceData;
struct xvfs_tclfs_channel_event *event;
event = (struct xvfs_tclfs_channel_event *) event_p;
channelInstanceData = event->channelInstanceData;
channelInstanceData->queuedEvents--;
xvfs_tclfs_closeChannel((ClientData) channelInstanceData, NULL);
return(1);
}
static int xvfs_tclfs_closeChannel(ClientData channelInstanceData_p, Tcl_Interp *interp) {
struct xvfs_tclfs_channel_id *channelInstanceData;
struct xvfs_tclfs_channel_event *event;
channelInstanceData = (struct xvfs_tclfs_channel_id *) channelInstanceData_p;
channelInstanceData->closed = 1;
if (channelInstanceData->queuedEvents != 0) {
event = (struct xvfs_tclfs_channel_event *) Tcl_Alloc(sizeof(*event));
event->tcl.proc = xvfs_tclfs_closeChannelEvent;
event->tcl.nextPtr = NULL;
event->channelInstanceData = channelInstanceData;
channelInstanceData->queuedEvents++;
Tcl_QueueEvent((Tcl_Event *) event, TCL_QUEUE_TAIL);
return(0);
}
Tcl_DecrRefCount(channelInstanceData->path);
Tcl_Free((char *) channelInstanceData);
return(0);
}
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static int xvfs_tclfs_watchChannelEvent(Tcl_Event *event_p, int flags) {
struct xvfs_tclfs_channel_id *channelInstanceData;
struct xvfs_tclfs_channel_event *event;
event = (struct xvfs_tclfs_channel_event *) event_p;
channelInstanceData = event->channelInstanceData;
channelInstanceData->queuedEvents--;
if (channelInstanceData->closed) {
return(1);
}
Tcl_NotifyChannel(channelInstanceData->channel, TCL_READABLE);
return(0);
return(1);
}
static void xvfs_tclfs_watchChannel(ClientData channelInstanceData_p, int mask) {
struct xvfs_tclfs_channel_id *channelInstanceData;
struct xvfs_tclfs_channel_event *event;
if ((mask & TCL_READABLE) != TCL_READABLE) {
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return;
}
event = (struct xvfs_tclfs_channel_event *) Tcl_Alloc(sizeof(*event));
event->tcl.proc = xvfs_tclfs_watchChannelEvent;
event->tcl.nextPtr = NULL;
event->channelInstanceData = channelInstanceData;
channelInstanceData->queuedEvents++;
Tcl_QueueEvent((Tcl_Event *) event, TCL_QUEUE_TAIL);
return;
}
static int xvfs_tclfs_seekChannel(ClientData channelInstanceData_p, long offset, int mode, int *errorCodePtr) {
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