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884a7df94b
I think that means that _every_ one of my traitoids is now a struct containing a vtable pointer as one of its fields (albeit sometimes the only field), and never just a bare pointer.
43 lines
1.0 KiB
C
43 lines
1.0 KiB
C
/*
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* nullplug.c: provide a null implementation of the Plug vtable which
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* ignores all calls. Occasionally useful in cases where we want to
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* make a network connection just to see if it works, but not do
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* anything with it afterwards except close it again.
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*/
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#include "putty.h"
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static void nullplug_socket_log(Plug *plug, int type, SockAddr *addr, int port,
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const char *error_msg, int error_code)
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{
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}
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static void nullplug_closing(Plug *plug, const char *error_msg, int error_code,
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int calling_back)
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{
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}
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static void nullplug_receive(Plug *plug, int urgent, char *data, int len)
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{
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}
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static void nullplug_sent(Plug *plug, int bufsize)
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{
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}
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static const PlugVtable nullplug_plugvt = {
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nullplug_socket_log,
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nullplug_closing,
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nullplug_receive,
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nullplug_sent,
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NULL
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};
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static Plug nullplug_plug = { &nullplug_plugvt };
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/*
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* There's a singleton instance of nullplug, because it's not
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* interesting enough to worry about making more than one of them.
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*/
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Plug *const nullplug = &nullplug_plug;
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