Breakpoints

Trigger a debugger breakpoint. More...

Collaboration diagram for Breakpoints:

Files
file	breakpoint.cc
	ns3::BreakpointFallback function implementation.
file	breakpoint.h
	NS_BREAKPOINT() macro definition and ns3::BreakpointFallback function declaration.

Macros
#define	NS_BREAKPOINT()   ns3::BreakpointFallback()
	Inserts a breakpoint instruction (or equivalent system call) into the code for selected machines.

Functions
void	ns3::BreakpointFallback ()
	fallback breakpoint function

Detailed Description

Trigger a debugger breakpoint.

Macro Definition Documentation

NS_BREAKPOINT

#define NS_BREAKPOINT

(

)

ns3::BreakpointFallback()

Inserts a breakpoint instruction (or equivalent system call) into the code for selected machines.

When an NS_ASSERT cannot verify its condition, this macro is used. Falls back to calling ns3::BreakpointFallback() for architectures where breakpoint assembly instructions are not supported.

Definition at line 80 of file breakpoint.h.

Function Documentation

BreakpointFallback()

void ns3::BreakpointFallback

(

)

fallback breakpoint function

This function is used by the NS_BREAKPOINT() macro as a fallback for when breakpoint assembly instructions are not available. It attempts to halt program execution either by a raising SIGTRAP, on unix systems, or by dereferencing a null pointer.

Normally you should not call this function directly.

we test here to allow a debugger to change the value of the variable 'a' to allow the debugger to avoid the subsequent segfault.

Definition at line 54 of file breakpoint.cc.

References NS_LOG_FUNCTION_NOARGS.