From 7c91c2c35a8558b7744f54d10bb5e040ec870768 Mon Sep 17 00:00:00 2001
From: Quincy <qiujie.sqj@gmail.com>
Date: Tue, 3 Sep 2024 10:25:40 +0800
Subject: [PATCH] fix: 1. fix example.  2. export read_tsc.

---
 .github/workflows/ci.yaml | 4 ++++
 examples/tsc_example.rs   | 2 +-
 src/lib.rs                | 2 +-
 src/tscns.rs              | 6 +++---
 4 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index e557b93..be6ce9a 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -22,7 +22,11 @@ jobs:
         uses: dtolnay/rust-toolchain@stable
         with:
           toolchain: nightly
+      - name: Build example
+        run: cargo build -r --example=tsc_example --verbose
       - name: Run tests
         run: cargo test --verbose
       - name: Run bench
         run: cargo +nightly bench --verbose
+      - name: Run example
+        run: ./target/release/examples/tsc_example
diff --git a/examples/tsc_example.rs b/examples/tsc_example.rs
index f6ff53d..1684d73 100644
--- a/examples/tsc_example.rs
+++ b/examples/tsc_example.rs
@@ -5,7 +5,7 @@ use tscns::{CALIBRATE_INTERVAL_NANOS, INIT_CALIBRATE_NANOS};
 pub struct TscTime;
 
 impl TscTime {
-    pub fn now(&self) -> u64 {
+    pub fn now(&self) -> i64 {
         tscns::read_nanos()
     }
 }
diff --git a/src/lib.rs b/src/lib.rs
index 0f3f528..c4b316c 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,6 +1,6 @@
 mod tscns;
 
 pub use tscns::{
-    read_nanos, calibrate, init, get_tsc_ghz, INIT_CALIBRATE_NANOS, CALIBRATE_INTERVAL_NANOS,
+    read_nanos, read_tsc, calibrate, init, get_tsc_ghz, INIT_CALIBRATE_NANOS, CALIBRATE_INTERVAL_NANOS,
 };
 
diff --git a/src/tscns.rs b/src/tscns.rs
index 59a1d6d..66a3868 100644
--- a/src/tscns.rs
+++ b/src/tscns.rs
@@ -68,8 +68,8 @@ pub fn init(init_calibrate_ns: i64, calibrate_interval_ns: i64) {
 /// println!("now ns: {}", ns);
 /// ```
 #[inline(always)]
-pub fn read_nanos() -> u64 {
-    tsc2ns(read_tsc()) as u64
+pub fn read_nanos() -> i64 {
+    tsc2ns(read_tsc())
 }
 
 
@@ -220,7 +220,7 @@ fn sync_time() -> (i64, i64) {
 
 /// Read tsc count, support x86_64 and aarch64 architecture cpu
 #[inline(always)]
-fn read_tsc() -> i64 {
+pub fn read_tsc() -> i64 {
     #[cfg(target_arch = "x86_64")]
     unsafe {
         std::arch::x86_64::_rdtsc() as i64