From 401f66c8307040450351890d4abb5f6e63a77a2f Mon Sep 17 00:00:00 2001
From: behzad nouri <behzadnouri@gmail.com>
Date: Tue, 6 Dec 2022 09:11:03 -0500
Subject: [PATCH] patches errors from clippy::seek_to_start_instead_of_rewind

https://rust-lang.github.io/rust-clippy/master/index.html#seek_to_start_instead_of_rewind
---
 bucket_map/src/bucket_storage.rs | 2 +-
 rbpf-cli/src/main.rs             | 4 ++--
 runtime/src/append_vec.rs        | 2 +-
 runtime/src/cache_hash_data.rs   | 2 +-
 4 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/bucket_map/src/bucket_storage.rs b/bucket_map/src/bucket_storage.rs
index d528f26fc..2090eefe0 100644
--- a/bucket_map/src/bucket_storage.rs
+++ b/bucket_map/src/bucket_storage.rs
@@ -317,7 +317,7 @@ impl BucketStorage {
         data.seek(SeekFrom::Start(capacity * cell_size as u64 - 1))
             .unwrap();
         data.write_all(&[0]).unwrap();
-        data.seek(SeekFrom::Start(0)).unwrap();
+        data.rewind().unwrap();
         measure_new_file.stop();
         let mut measure_flush = Measure::start("measure_flush");
         data.flush().unwrap(); // can we skip this?
diff --git a/rbpf-cli/src/main.rs b/rbpf-cli/src/main.rs
index 085992310..abd8eb8ce 100644
--- a/rbpf-cli/src/main.rs
+++ b/rbpf-cli/src/main.rs
@@ -22,7 +22,7 @@ use {
     std::{
         fmt::{Debug, Formatter},
         fs::File,
-        io::{Read, Seek, SeekFrom},
+        io::{Read, Seek},
         path::Path,
         time::{Duration, Instant},
     },
@@ -244,7 +244,7 @@ before execting it in the virtual machine.",
     let mut file = File::open(Path::new(program)).unwrap();
     let mut magic = [0u8; 4];
     file.read_exact(&mut magic).unwrap();
-    file.seek(SeekFrom::Start(0)).unwrap();
+    file.rewind().unwrap();
     let mut contents = Vec::new();
     file.read_to_end(&mut contents).unwrap();
     let syscall_registry = register_syscalls(&invoke_context.feature_set, true).unwrap();
diff --git a/runtime/src/append_vec.rs b/runtime/src/append_vec.rs
index 2e5898758..661df861c 100644
--- a/runtime/src/append_vec.rs
+++ b/runtime/src/append_vec.rs
@@ -333,7 +333,7 @@ impl AppendVec {
         // expensive.
         data.seek(SeekFrom::Start((size - 1) as u64)).unwrap();
         data.write_all(&[0]).unwrap();
-        data.seek(SeekFrom::Start(0)).unwrap();
+        data.rewind().unwrap();
         data.flush().unwrap();
 
         //UNSAFE: Required to create a Mmap
diff --git a/runtime/src/cache_hash_data.rs b/runtime/src/cache_hash_data.rs
index 4c8608661..43988af00 100644
--- a/runtime/src/cache_hash_data.rs
+++ b/runtime/src/cache_hash_data.rs
@@ -126,7 +126,7 @@ impl CacheHashDataFile {
         // expensive.
         data.seek(SeekFrom::Start(capacity - 1)).unwrap();
         data.write_all(&[0]).unwrap();
-        data.seek(SeekFrom::Start(0)).unwrap();
+        data.rewind().unwrap();
         data.flush().unwrap();
         Ok(unsafe { MmapMut::map_mut(&data).unwrap() })
     }