public static int GetInterval(KProfileSource profileSource)
{
int interval;
Win32.NtQueryIntervalProfile(profileSource, out interval).ThrowIf();
return(interval);
}
public static void SetInterval(KProfileSource profileSource, int interval)
{
NtStatus status;
if ((status = Win32.NtSetIntervalProfile(interval, profileSource)) >= NtStatus.Error)
{
Win32.Throw(status);
}
}
public static int GetInterval(KProfileSource profileSource)
{
NtStatus status;
int interval;
if ((status = Win32.NtQueryIntervalProfile(profileSource, out interval)) >= NtStatus.Error)
{
Win32.Throw(status);
}
return(interval);
}
public static ProfileHandle Create(
ProcessHandle processHandle,
IntPtr rangeBase,
uint rangeSize,
int bucketSize,
KProfileSource profileSource,
IntPtr affinity
)
{
NtStatus status;
IntPtr handle;
if (bucketSize < 2 || bucketSize > 30)
{
throw new ArgumentException("Bucket size must be between 2 and 30, inclusive.");
}
unchecked
{
uint realBucketSize = (uint)(2 << (bucketSize - 1));
MemoryAlloc buffer = new MemoryAlloc((int)((rangeSize - 1) / realBucketSize + 1) * sizeof(int)); // divide, round up
if ((status = Win32.NtCreateProfile(
out handle,
processHandle ?? IntPtr.Zero,
rangeBase,
new IntPtr(rangeSize),
bucketSize,
buffer,
buffer.Size,
profileSource,
affinity
)) >= NtStatus.Error)
{
Win32.Throw(status);
}
return(new ProfileHandle(handle, true, rangeBase, rangeSize, realBucketSize, buffer));
}
}
public static void SetInterval(KProfileSource profileSource, int interval)
{
Win32.NtSetIntervalProfile(interval, profileSource).ThrowIf();
}
