up

disk/src/agg.rs

@@ -0,0 +1,153 @@
+pub trait AggregatorTdim {
+    type OutputValue: AggregatableXdim1Bin + AggregatableTdim;
+}
+
+pub trait AggregatableXdim1Bin {
+    type Output: AggregatableXdim1Bin + AggregatableTdim;
+    fn into_agg(self) -> Self::Output;
+}
+
+pub trait AggregatableTdim {
+    type Output: AggregatableXdim1Bin + AggregatableTdim;
+    type Aggregator: AggregatorTdim;
+    fn aggregator_new(&self) -> Self::Aggregator;
+}
+
+
+// dummy
+impl AggregatableXdim1Bin for () {
+    type Output = ();
+    fn into_agg(self) -> Self::Output { todo!() }
+}
+impl AggregatableTdim for () {
+    type Output = ();
+    type Aggregator = ();
+    fn aggregator_new(&self) -> Self::Aggregator {
+        todo!()
+    }
+}
+impl AggregatorTdim for () {
+    type OutputValue = ();
+}
+
+
+pub struct ValuesDim1 {
+    tss: Vec<u64>,
+    values: Vec<Vec<f32>>,
+}
+
+impl AggregatableXdim1Bin for ValuesDim1 {
+    type Output = MinMaxAvgScalarEventBatch;
+    fn into_agg(self) -> Self::Output {
+        todo!()
+    }
+}
+
+
+pub struct MinMaxAvgScalarEventBatch {
+    ts1s: Vec<u64>,
+    ts2s: Vec<u64>,
+    mins: Vec<f32>,
+    maxs: Vec<f32>,
+    avgs: Vec<f32>,
+}
+
+impl AggregatableXdim1Bin for MinMaxAvgScalarEventBatch {
+    type Output = MinMaxAvgScalarEventBatch;
+    fn into_agg(self) -> Self::Output {
+        self
+    }
+}
+
+impl AggregatableTdim for MinMaxAvgScalarEventBatch {
+    type Output = MinMaxAvgScalarBinBatch;
+    type Aggregator = MinMaxAvgScalarEventBatchAggregator;
+    fn aggregator_new(&self) -> Self::Aggregator {
+        todo!()
+    }
+}
+
+pub struct MinMaxAvgScalarEventBatchAggregator {}
+
+impl AggregatorTdim for MinMaxAvgScalarEventBatchAggregator {
+    type OutputValue = MinMaxAvgScalarBinBatch;
+}
+
+
+pub struct MinMaxAvgScalarBinBatch {
+    ts1s: Vec<u64>,
+    ts2s: Vec<u64>,
+    mins: Vec<f32>,
+    maxs: Vec<f32>,
+    avgs: Vec<f32>,
+}
+
+impl AggregatableXdim1Bin for MinMaxAvgScalarBinBatch {
+    type Output = MinMaxAvgScalarBinBatch;
+    fn into_agg(self) -> Self::Output {
+        todo!()
+    }
+}
+
+impl AggregatableTdim for MinMaxAvgScalarBinBatch {
+    type Output = MinMaxAvgScalarBinSingle;
+    type Aggregator = MinMaxAvgScalarBinSingle;
+    fn aggregator_new(&self) -> Self::Aggregator {
+        todo!()
+    }
+}
+
+pub struct MinMaxAvgScalarBinSingle {
+    ts1: u64,
+    ts2: u64,
+    min: f32,
+    max: f32,
+    avg: f32,
+}
+
+impl AggregatableTdim for MinMaxAvgScalarBinSingle {
+    type Output = MinMaxAvgScalarBinSingle;
+    type Aggregator = MinMaxAvgScalarBinSingle;
+    fn aggregator_new(&self) -> Self::Aggregator {
+        todo!()
+    }
+}
+
+impl AggregatorTdim for MinMaxAvgScalarBinSingle {
+    type OutputValue = ();
+}
+
+impl AggregatableXdim1Bin for MinMaxAvgScalarBinSingle {
+    type Output = MinMaxAvgScalarBinSingle;
+    fn into_agg(self) -> Self::Output {
+        self
+    }
+}
+
+#[test]
+fn agg_x_dim_1() {
+    let vals = ValuesDim1 {
+        tss: vec![0, 1, 2, 3],
+        values: vec![
+            vec![0., 0., 0.],
+            vec![1., 1., 1.],
+            vec![2., 2., 2.],
+            vec![3., 3., 3.],
+        ],
+    };
+    // I want to distinguish already in the outer part between dim-0 and dim-1 and generate
+    // separate code for these cases...
+    // That means that also the reading chain itself needs to be typed on that.
+    // Need to supply some event-payload converter type which has that type as Output type.
+    let vals2 = vals.into_agg();
+    // Now the T-binning:
+
+    /*
+    T-aggregator must be able to produce empty-values of correct type even if we never get
+    a single value of input data.
+    Therefore, it needs the bin range definition.
+    How do I want to drive the system?
+    If I write the T-binner as a Stream, then I also need to pass it the input!
+    Meaning, I need to pass the Stream which produces the actual numbers from disk.
+    */
+}

disk/src/lib.rs

@@ -1,3 +1,5 @@
+pub mod agg;
+
 #[allow(unused_imports)]
 use tracing::{error, warn, info, debug, trace};
 use err::Error;
@@ -12,6 +14,7 @@ use futures_util::{pin_mut, StreamExt};
 use bytes::{Bytes, BytesMut, BufMut, Buf};
 use std::path::PathBuf;
 use bitshuffle::bitshuffle_decompress;
+use async_channel::bounded;
 
 
 pub async fn read_test_1(query: &netpod::AggQuerySingleChannel) -> Result<netpod::BodyStream, Error> {
@@ -352,12 +355,15 @@ pub fn parsed1(query: &netpod::AggQuerySingleChannel) -> impl Stream<Item=Result
                     while let Some(evres) = chunker.next().await {
                         match evres {
                             Ok(evres) => {
-                                let mut buf = BytesMut::with_capacity(16);
-
+                                //let mut buf = BytesMut::with_capacity(16);
                                 // TODO put some interesting information to test
-                                buf.put_u64_le(0xcafecafe);
-
-                                yield Ok(buf.freeze())
+                                //buf.put_u64_le(0xcafecafe);
+                                //yield Ok(buf.freeze())
+                                for bufopt in evres.decomps {
+                                    if let Some(buf) = bufopt {
+                                        yield Ok(buf.freeze());
+                                    }
+                                }
                             }
                             Err(e) => {
                                 yield Err(e)
@@ -406,7 +412,7 @@ impl EventChunker {
         // what I've found in the buffer
         // what I've consumed from the buffer
         // how many bytes I need min to make progress
-        let mut ret = EventFull::dummy();
+        let mut ret = EventFull::empty();
         let mut need_min = 0 as u32;
         use byteorder::{BE, ReadBytesExt};
         //info!("parse_buf  rb {}", buf.len());
@@ -466,8 +472,8 @@ impl EventChunker {
                         let len1b = sl.read_i32::<BE>().unwrap();
                         assert!(len == len1b);
                         sl.read_i64::<BE>().unwrap();
-                        let ts = sl.read_i64::<BE>().unwrap();
-                        let pulse = sl.read_i64::<BE>().unwrap();
+                        let ts = sl.read_i64::<BE>().unwrap() as u64;
+                        let pulse = sl.read_i64::<BE>().unwrap() as u64;
                         sl.read_i64::<BE>().unwrap();
                         let _status = sl.read_i8().unwrap();
                         let _severity = sl.read_i8().unwrap();
@@ -508,15 +514,20 @@ impl EventChunker {
                             let k1 = len as u32 - p1 - 4;
                             assert!(value_bytes < 1024 * 256);
                             assert!(block_size == 1024 * 8);
-                            let value_bytes = value_bytes;
-                            let inp = [0; 16];
+                            //let value_bytes = value_bytes;
                             let type_size = type_size(type_index);
                             let ele_count = value_bytes / type_size as u64;
                             let ele_size = type_size;
+                            let decomp_bytes = (type_size * ele_count as u32) as usize;
+                            let mut decomp = BytesMut::with_capacity(decomp_bytes);
+                            unsafe {
+                                decomp.set_len(decomp_bytes);
+                            }
                             //info!("try decompress  value_bytes {}  ele_size {}  ele_count {}  type_index {}", value_bytes, ele_size, ele_count, type_index);
-                            let c1 = bitshuffle_decompress(&buf.as_ref()[p1 as usize..], &mut self.tmpbuf, ele_count as usize, ele_size as usize, 0);
+                            let c1 = bitshuffle_decompress(&buf.as_ref()[p1 as usize..], &mut decomp, ele_count as usize, ele_size as usize, 0);
                             //info!("decompress result: {:?}", c1);
                             assert!(c1.unwrap() as u32 == k1);
+                            ret.add_event(ts, pulse, Some(decomp));
                         }
                         buf.advance(len as usize);
                         need_min = 4;
@@ -600,18 +611,27 @@ impl Stream for EventChunker {
 }
 
 pub struct EventFull {
-
-    // TODO add structures to hold list of events
-
+    tss: Vec<u64>,
+    pulses: Vec<u64>,
+    decomps: Vec<Option<BytesMut>>,
 }
 
 impl EventFull {
 
-    pub fn dummy() -> Self {
+    pub fn empty() -> Self {
         Self {
+            tss: vec![],
+            pulses: vec![],
+            decomps: vec![],
         }
     }
 
+    fn add_event(&mut self, ts: u64, pulse: u64, decomp: Option<BytesMut>) {
+        self.tss.push(ts);
+        self.pulses.push(pulse);
+        self.decomps.push(decomp);
+    }
+
 }