feat(bindings/c): add opendal_operator_blocking_delete method

Signed-off-by: Enwei Jiao <[email protected]>

bindings/c/include/opendal.h

@@ -401,6 +401,44 @@ enum opendal_code opendal_operator_blocking_write(struct opendal_operator_ptr pt
 struct opendal_result_read opendal_operator_blocking_read(struct opendal_operator_ptr ptr,
                                                           const char *path);
 
+/**
+ * \brief Blockingly delete `path`.
+ *
+ * Write the `bytes` into the `path` blockingly by `op_ptr`, returns the opendal_code OPENDAL_OK
+ * if succeeds, others otherwise
+ *
+ * @param ptr The opendal_operator_ptr created previously
+ * @param path The designated path you want to delete
+ * @see opendal_operator_ptr
+ * @see opendal_code
+ * @return OPENDAL_OK if succeeds others otherwise
+ *
+ * # Example
+ *
+ * Following is an example
+ * ```C
+ * //...prepare your opendal_operator_ptr, named ptr for example
+ *
+ * // now you can delete!
+ * opendal_code code = opendal_operator_blocking_delete(ptr, "/testpath");
+ *
+ * // Assert that this succeeds
+ * assert(code == OPENDAL_OK)
+ * ```
+ *
+ * # Safety
+ *
+ * It is **safe** under the cases below
+ * * The memory pointed to by `path` must contain a valid nul terminator at the end of
+ *   the string.
+ *
+ * # Panic
+ *
+ * * If the `path` points to NULL, this function panics, i.e. exits with information
+ */
+enum opendal_code opendal_operator_blocking_delete(struct opendal_operator_ptr ptr,
+                                                   const char *path);
+
 /**
  * \brief Check whether the path exists.
  *

bindings/c/src/lib.rs

@@ -235,6 +235,56 @@ pub unsafe extern "C" fn opendal_operator_blocking_read(
     }
 }
 
+/// \brief Blockingly delete `path`.
+///
+/// Write the `bytes` into the `path` blockingly by `op_ptr`, returns the opendal_code OPENDAL_OK
+/// if succeeds, others otherwise
+///
+/// @param ptr The opendal_operator_ptr created previously
+/// @param path The designated path you want to delete
+/// @see opendal_operator_ptr
+/// @see opendal_code
+/// @return OPENDAL_OK if succeeds others otherwise
+///
+/// # Example
+///
+/// Following is an example
+/// ```C
+/// //...prepare your opendal_operator_ptr, named ptr for example
+///
+/// // now you can delete!
+/// opendal_code code = opendal_operator_blocking_delete(ptr, "/testpath");
+///
+/// // Assert that this succeeds
+/// assert(code == OPENDAL_OK)
+/// ```
+///
+/// # Safety
+///
+/// It is **safe** under the cases below
+/// * The memory pointed to by `path` must contain a valid nul terminator at the end of
+///   the string.
+///
+/// # Panic
+///
+/// * If the `path` points to NULL, this function panics, i.e. exits with information
+#[no_mangle]
+pub unsafe extern "C" fn opendal_operator_blocking_delete(
+    ptr: opendal_operator_ptr,
+    path: *const c_char,
+) -> opendal_code {
+    if path.is_null() {
+        panic!("The path given is pointing at NULL");
+    }
+
+    let op = ptr.as_ref();
+    let path = unsafe { std::ffi::CStr::from_ptr(path).to_str().unwrap() };
+    match op.delete(path) {
+        Ok(_) => opendal_code::OPENDAL_OK,
+        Err(e) => opendal_code::from_opendal_error(e),
+    }
+}
+
 /// \brief Check whether the path exists.
 ///
 /// If the operation succeeds, no matter the path exists or not,

bindings/c/tests/bdd.cpp

@@ -82,6 +82,14 @@ TEST_F(OpendalBddTest, FeatureTest)
     for (int i = 0; i < r.data->len; i++) {
         EXPECT_EQ(this->content[i], (char)(r.data->data[i]));
     }
+
+    // The blocking file should be deleted
+    code = opendal_operator_blocking_delete(this->p, this->path.c_str());
+    EXPECT_EQ(code, OPENDAL_OK);
+    e = opendal_operator_is_exist(this->p, this->path.c_str());
+    EXPECT_EQ(e.code, OPENDAL_OK);
+    EXPECT_FALSE(e.is_exist);
+
     opendal_bytes_free(r.data);
 }