haiku/headers/private/kernel/tracing.h
Ingo Weinhold 0b60583fec Added convenience functions alloc_tracing_buffer_{memcpy,strcpy}().
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23576 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-17 01:58:08 +00:00

83 lines
1.5 KiB
C++

#ifndef KERNEL_UTIL_TRACING_H
#define KERNEL_UTIL_TRACING_H
#include <SupportDefs.h>
#include <KernelExport.h>
#include <stdio.h>
#define ENABLE_TRACING 0
#define MAX_TRACE_SIZE 1024 * 1024
struct trace_entry {
uint16 size;
uint16 flags;
};
#ifdef __cplusplus
#include <new>
class TraceEntry : trace_entry {
public:
TraceEntry();
virtual ~TraceEntry();
virtual void Dump(char* buffer, size_t bufferSize);
size_t Size() const { return size; }
uint16 Flags() const { return flags; }
void Initialized();
void* operator new(size_t size, const std::nothrow_t&) throw();
};
class AbstractTraceEntry : public TraceEntry {
public:
AbstractTraceEntry()
:
fThread(find_thread(NULL)),
fTime(system_time())
{
}
virtual void Dump(char* buffer, size_t bufferSize)
{
int length = snprintf(buffer, bufferSize, "[%6ld] %Ld: ",
fThread, fTime);
AddDump(buffer + length, bufferSize - length);
}
virtual void AddDump(char* buffer, size_t bufferSize)
{
}
thread_id Thread() const { return fThread; }
bigtime_t Time() const { return fTime; }
protected:
thread_id fThread;
bigtime_t fTime;
};
#endif // __cplusplus
#ifdef __cplusplus
extern "C" {
#endif
uint8* alloc_tracing_buffer(size_t size);
uint8* alloc_tracing_buffer_memcpy(const void* source, size_t size, bool user);
char* alloc_tracing_buffer_strcpy(const char* source, size_t maxSize,
bool user);
status_t tracing_init(void);
#ifdef __cplusplus
}
#endif
#endif /* KERNEL_UTIL_TRACING_H */