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#ifndef cg_arcs_h
#define cg_arcs_h
#include "gprof.h"
#include "symtab.h"
/*
* Arc structure for call-graph.
*
* With pointers to the symbols of the parent and the child, a count
* of how many times this arc was traversed, and pointers to the next
* parent of this child and the next child of this parent.
*/
typedef struct arc {
Sym *parent; /* source vertice of arc */
Sym *child; /* dest vertice of arc */
int count; /* # of calls from parent to child */
double time; /* time inherited along arc */
double child_time; /* child-time inherited along arc */
struct arc *next_parent; /* next parent of CHILD */
struct arc *next_child; /* next child of PARENT */
} Arc;
extern int num_cycles; /* number of cycles discovered */
extern Sym *cycle_header; /* cycle headers */
extern void arc_add PARAMS((Sym *parent, Sym *child, int count));
extern Arc *arc_lookup PARAMS((Sym *parent, Sym *child));
extern Sym **cg_assemble PARAMS((void));
#endif /* cg_arcs_h */
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