2004-08-15 12:55:22 +01:00
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/**
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* Handle bindings for Arache engine.
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*/
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#include "list.h"
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#include "system.h"
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#include "binding.h"
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#include "memory.h"
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2004-08-15 13:24:27 +01:00
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/*
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* Idea is the ev_from *has to* precede the ev_to
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*/
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2004-08-15 12:55:22 +01:00
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struct binding
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{
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int run_from;
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int ev_from;
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int run_to;
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int ev_to;
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int manual;
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};
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typedef struct binding *Binding;
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static System sys;
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/*
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*
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* Assist stuff
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*
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*/
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//! Create mem for binding
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Binding
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binding_create (int run_from, int ev_from, int run_to, int ev_to, int manual)
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{
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Binding b;
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b = memAlloc (sizeof (struct binding));
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b->run_from = run_from;
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b->ev_from = ev_from;
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b->run_to = run_to;
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b->ev_to = ev_to;
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b->manual = manual;
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return b;
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}
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//! Remove mem for binding
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void
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binding_destroy (Binding b)
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{
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memFree (b, sizeof (struct binding));
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}
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/*
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*
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* Main
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*
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*/
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//! Init module
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void
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bindingInit (const System mysys)
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{
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sys = mysys;
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sys->bindings = NULL;
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}
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//! Close up
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void
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bindingDone ()
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{
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int delete (Binding b)
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{
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binding_destroy (b);
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return 1;
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}
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list_iterate (sys->bindings, delete);
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list_destroy (sys->bindings);
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}
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/**
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*
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* Externally available functions
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*
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*/
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//! Add a binding
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/**
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* Note that bindings are added to the head of the list.
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*@returns True iff is a valid additional binding. False if not. If false, nothing needs to be destroyed.
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*/
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int
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binding_add (int run_from, int ev_from, int run_to, int ev_to)
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{
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Binding b;
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b = binding_create (run_from, ev_from, run_to, ev_to, 1);
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sys->bindings = list_insert (sys->bindings, b);
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return 1;
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}
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//! Remove last additions, including last manual addition
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/**
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* Note that this concerns the head of the list.
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*/
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void
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binding_remove_last ()
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{
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List list;
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int manual;
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manual = 0;
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list = sys->bindings;
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2004-08-15 13:24:27 +01:00
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while (list != NULL && !manual)
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{
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Binding b;
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2004-08-15 12:55:22 +01:00
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2004-08-15 13:24:27 +01:00
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b = (Binding) list->data;
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manual = b->manual;
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binding_destroy (b);
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list = list_delete (list);
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}
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2004-08-15 12:55:22 +01:00
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sys->bindings = list;
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}
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