From 5915d243e1b33593cb12488c65ce833479292a92 Mon Sep 17 00:00:00 2001
From: Salvatore <digirols@inf.ethz.ch>
Date: Tue, 20 Apr 2021 15:31:23 +0200
Subject: [PATCH] fixing examples

---
 examples/empty/driver/driver.c     | 39 +++++++++++++++
 examples/filtering/driver/driver.c | 79 ++++++++++++++++++++++++++++++
 2 files changed, 118 insertions(+)
 create mode 100644 examples/empty/driver/driver.c
 create mode 100644 examples/filtering/driver/driver.c

diff --git a/examples/empty/driver/driver.c b/examples/empty/driver/driver.c
new file mode 100644
index 0000000..151b9bd
--- /dev/null
+++ b/examples/empty/driver/driver.c
@@ -0,0 +1,39 @@
+// Copyright 2020 ETH Zurich
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <stdint.h>
+#include "gdriver.h"
+
+uint32_t fill_packet(uint32_t msg_idx, uint32_t pkt_idx, uint8_t *pkt_buff, uint32_t max_pkt_size, uint32_t* l1_pkt_size)
+{   
+    // nothing to do here
+
+    return max_pkt_size;
+}
+
+int main(int argc, char**argv)
+{
+    const char *handlers_file="build/empty";
+    const char *hh="empty_hh";
+    const char *ph="empty_ph";
+    const char *th="empty_th";
+
+    gdriver_init(argc, argv, handlers_file, hh, ph, th);
+    gdriver_set_packet_fill_callback(fill_packet);
+   
+    gdriver_run();
+
+    gdriver_fini();
+    return 0;
+}
diff --git a/examples/filtering/driver/driver.c b/examples/filtering/driver/driver.c
new file mode 100644
index 0000000..11154b9
--- /dev/null
+++ b/examples/filtering/driver/driver.c
@@ -0,0 +1,79 @@
+// Copyright 2020 ETH Zurich
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <stdint.h>
+#include <assert.h>
+
+#include "gdriver.h"
+
+#include "../handlers/filtering.h"
+
+#define SEED 6598736
+
+uint16_t hashmult(const uint16_t key)
+{
+    uint16_t hash = 0;
+    uint8_t *key_byte = (uint8_t *)&key;
+    for (uint16_t i = 0; i < sizeof(uint16_t); i++)
+    {
+        //printf("i %u k %u",i,key_byte[i] );
+        hash = hash * 31 + (key_byte[i]);
+    }
+    return hash;
+}
+
+void fill_htable(uint32_t *vec, uint32_t length)
+{
+    for (uint32_t i = 0; i < length; i++)
+    {
+        vec[hashmult((uint16_t)i)] = i;
+    }
+}
+
+uint32_t fill_packet(uint32_t msg_idx, uint32_t pkt_idx, uint8_t *pkt_buff, uint32_t max_pkt_size, uint32_t *l1_pkt_size)
+{
+    assert(max_pkt_size >= KEY_SIZE);
+
+    for (int i = 0; i < KEY_SIZE / sizeof(uint32_t); i++)
+    {
+        ((uint32_t *)pkt_buff)[i] = rand();
+    }
+
+    return max_pkt_size;
+}
+
+int main(int argc, char **argv)
+{
+    const char *handlers_file = "build/filtering";
+    const char *hh = NULL;
+    const char *ph = "filtering_ph";
+    const char *th = NULL;
+
+    srand(SEED);
+
+    gdriver_init(argc, argv, handlers_file, hh, ph, th);
+    gdriver_set_packet_fill_callback(fill_packet);
+
+    uint32_t *vec = (uint32_t *)malloc(sizeof(uint32_t) * (TOT_WORDS));
+    fill_htable(vec, TOT_WORDS);
+
+    gdriver_set_l2_img((void *)vec, sizeof(uint32_t) * (TOT_WORDS));
+
+    gdriver_run();
+
+    gdriver_fini();
+
+    free(vec);
+    return 0;
+}