KittyPerfWatch Class Reference

Class to manage hardware watchpoins. More...

#include <KittyPerfEvent.hpp>

Inheritance diagram for KittyPerfWatch:

Classes
struct	WatchInfo

Public Member Functions
bool	add (pid_t tid, uintptr_t addr, KT_WATCH_TYPE bp_type, KT_WATCH_LEN bp_len)
	Adds a new hardware watchpoint to the watch list.
void	poll (int timeout_ms, const std::function< bool(const KittyPerfSample &)> &cb)
	Polls the watch list for new samples.
void	clear ()
	Clears all watchpoints from the watch list.

Protected Member Functions
bool	enable ()
bool	disable ()
void	consumeRecord (const WatchInfo &w, KittyPerfSample *out)
void	pollOnce (int timeout_ms, KittyPerfSample *out)

Static Protected Member Functions
static int	perf_event_open (struct perf_event_attr *attr, pid_t pid, int cpu, int group_fd, unsigned long flags)

Protected Attributes
std::vector< WatchInfo >	_watches

Detailed Description

Class to manage hardware watchpoins.

Member Function Documentation

add()

bool KittyPerfWatch::add	(	pid_t	tid,
		uintptr_t	addr,
		KT_WATCH_TYPE	bp_type,
		KT_WATCH_LEN	bp_len )

Adds a new hardware watchpoint to the watch list.

Parameters

tid	The thread ID to attach the watchpoint to.
addr	The address to watch.
bp_type	The type of watchpoint (read, write, or read/write).
bp_len	The length of the watchpoint in bytes.

Returns

True if the watchpoint was added successfully, false otherwise.

poll()

void KittyPerfWatch::poll	(	int	timeout_ms,
		const std::function< bool(const KittyPerfSample &)> &	cb )

Polls the watch list for new samples.

Parameters

timeout_ms	The maximum time to wait for new samples in milliseconds.
cb	A callback function to process each new sample.

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The documentation for this class was generated from the following file:

• /home/runner/work/KittyMemoryEx/KittyMemoryEx/KittyMemoryEx/KittyPerfEvent.hpp