/// <summary>
///
/// </summary>
/// <param name="bits"></param>
/// <param name="index"></param>
/// <param name="ctx"></param>
/// <returns></returns>
public static GribMessage Create(byte[] bits, int index, GribContext ctx)
{
var buff = Marshal.AllocHGlobal(bits.Length);
Marshal.Copy(bits, 0, buff, bits.Length);
int err = 0;
SizeT sz = (SizeT)bits.Length;
GribMessage msg = null;
GribHandle handle = null;
lock (_fileLock)
{
// grib_api moves to the next message in a stream for each new handle
handle = GribApiProxy.GribHandleNewFromMultiMessage(ctx, out buff, ref sz, out err);
}
if (err != 0)
{
Marshal.AllocHGlobal(buff);
throw GribApiException.Create(err);
}
if (handle != null)
{
msg = new GribMessage(handle, ctx, buff, index);
}
return(msg);
}
/// <summary>
/// Creates a GribMessage instance from a <seealso cref="Grib.Api.GribFile"/>.
/// </summary>
/// <param name="file">The file.</param>
/// <param name="index">The index.</param>
/// <returns></returns>
public static GribMessage Create(GribFile file, int index)
{
GribMessage msg = null;
int err = 0;
// grib_api moves to the next message in a stream for each new handle
GribHandle handle = GribApiProxy.GribHandleNewFromFile(file.Context, file, out err);
if (err != 0)
{
throw GribApiException.Create(err);
}
if (handle != null)
{
msg = new GribMessage(handle, file.Context, index);
}
return(msg);
}
/// <summary>
/// Creates a GribMessage instance from a buffer.
/// </summary>
/// <param name="bits"></param>
/// <param name="index"></param>
/// <returns></returns>
public static GribMessage Create(byte[] bits, int index = 0)
{
GCHandle h = GCHandle.Alloc(bits, GCHandleType.Pinned);
IntPtr pHandle = h.AddrOfPinnedObject();
int err = 0;
SizeT sz = (SizeT)bits.Length;
GribHandle handle = GribApiProxy.GribHandleNewFromMultiMessage(GribContext.Default, out pHandle, ref sz, out err);
if (err != 0)
{
h.Free();
throw GribApiException.Create(err);
}
GribMessage msg = null;
if (handle != null)
{
msg = new GribMessage(handle, GribContext.Default, h, index);
}
return(msg);
}
