Initial import of svn+ssh:://svn.icir.org/bro/trunk/bro as of r7088

src/DbgBreakpoint.h

@@ -0,0 +1,83 @@
+// $Id: DbgBreakpoint.h 80 2004-07-14 20:15:50Z jason $
+
+// Structures and methods for implementing breakpoints in the Bro debugger.
+
+#ifndef DbgBreakpoint_h
+#define DbgBreakpoint_h
+
+#include "Debug.h"
+
+enum BreakCode { bcNoHit, bcHit, bcHitAndDelete };
+class DbgBreakpoint {
+	enum Kind { BP_STMT = 0, BP_FUNC, BP_LINE, BP_TIME };
+
+public:
+	DbgBreakpoint();
+	~DbgBreakpoint();
+
+	int GetID() const	{ return BPID; }
+	void SetID(int newID)	{ BPID = newID; }
+
+	// True if breakpoint could be set; false otherwise
+	bool SetLocation(ParseLocationRec plr, string loc_str);
+	bool SetLocation(Stmt* stmt);
+	bool SetLocation(double time);
+
+	bool Reset();	// cancel and re-apply bpt when restarting execution
+
+	// Temporary = disable (remove?) the breakpoint right after it's hit.
+	bool IsTemporary() const	{ return temporary; }
+	void SetTemporary(bool is_temporary)	{ temporary = is_temporary; }
+
+	// Feed it a Stmt* or a time and see if this breakpoint should
+	// hit.  bcHitAndDelete means that it has hit, and should now be
+	// deleted entirely.
+	//
+	// NOTE: If it returns a hit, the DbgBreakpoint object will take
+	// appropriate action (e.g., resetting counters).
+	BreakCode ShouldBreak(Stmt* s);
+	BreakCode ShouldBreak(double t);
+
+	const string& GetCondition() const	{ return condition; }
+	bool SetCondition(const string& new_condition);
+
+	int GetRepeatCount() const	{ return repeat_count; }
+	bool SetRepeatCount(int count); // implements function of ignore command in gdb
+
+	bool IsEnabled() const	{ return enabled; }
+	bool SetEnable(bool do_enable);
+
+	// e.g. "FooBar() at foo.c:23"
+	const char * Description() const	{ return description; }
+
+protected:
+	void AddToGlobalMap();
+	void RemoveFromGlobalMap();
+
+	void AddToStmt();
+	void RemoveFromStmt();
+
+	BreakCode HasHit();	// a breakpoint hit, update state, return proper code.
+	void PrintHitMsg();	// display reason when the breakpoint hits
+
+	Kind kind;
+	bool enabled;	// ### comment this and next
+	bool temporary;
+	int BPID;
+
+	char description[512];
+	string function_name;	// location
+	const char* source_filename;
+	int source_line;
+
+	Stmt* at_stmt;
+	double at_time;	// break when the virtual time is this
+
+	// Support for conditional and N'th time breakpoints.
+	int repeat_count;	// if positive, break after this many hits
+	int hit_count;	// how many times it's been hit (w/o breaking)
+
+	string condition;	// condition to evaluate; nil for none
+};
+
+#endif