get the C code building

blackheap-benchmarker/Cargo.toml

@@ -3,9 +3,8 @@ name = "blackheap-benchmarker"
 version = "0.1.0"
 edition = "2021"
 
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
 [dependencies]
+libc = "0.2"
 
 [build-dependencies]
 cc = "1.0"

blackheap-benchmarker/build.rs

@@ -1,5 +1,5 @@
 fn main() {
     cc::Build::new()
-        .file("src/c_code/benchmarker.c")
+        .file("src/c_code/benchmarker_internal.c")
         .compile("c_benchmarker");
 }

blackheap-benchmarker/src/c_code/mod.rs

@@ -1 +1,49 @@
+// needed for autogenerated code by bindgen
+#![allow(non_snake_case)]
+#![allow(non_upper_case_globals)]
+#![allow(non_camel_case_types)]
+
 mod benchmarker;
+
+use std::ffi::CString;
+
+use benchmarker::{access_pattern_ACCESS_PATTERN_SEQUENTIAL, benchmark_config, error_codes_ERROR_CODES_SUCCESS};
+
+fn run_benchmark() {
+    let filepath = CString::new("/tmp/test_file.bin").expect("CString::new failed");
+    let config = benchmark_config {
+        filepath: filepath.as_ptr(),
+        memory_buffer_in_bytes: 1024,
+        file_size_in_bytes: 1024 * 10,
+        access_size_in_bytes: 128,
+        number_of_io_op_tests: 10,
+        access_pattern_in_memory: access_pattern_ACCESS_PATTERN_SEQUENTIAL,
+        access_pattern_in_file: access_pattern_ACCESS_PATTERN_SEQUENTIAL,
+        is_read_operation: true,
+        prepare_file_size: true,
+        drop_cache_first: false,
+        do_reread: false,
+        restrict_free_ram_to: 0,
+    };
+
+    unsafe {
+        let results = benchmarker::benchmark_file(&config);
+
+        if results.res == error_codes_ERROR_CODES_SUCCESS {
+            println!("Benchmark completed successfully.");
+            println!("Results length: {}", results.length);
+
+            // Access the durations array
+            let durations_slice = std::slice::from_raw_parts(results.durations, results.length);
+            for (i, &duration) in durations_slice.iter().enumerate() {
+                println!("Duration for operation {}: {} seconds", i, duration);
+            }
+
+            // Free the durations array allocated by the C code
+            libc::free(results.durations as *mut libc::c_void);
+        } else {
+            println!("Benchmark failed with error code: {:?}", results.res);
+        }
+    }
+}
+