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-rw-r--r--examples/rust/hello-world/src/lib.rs41
1 files changed, 41 insertions, 0 deletions
diff --git a/examples/rust/hello-world/src/lib.rs b/examples/rust/hello-world/src/lib.rs
new file mode 100644
index 0000000..9be1abd
--- /dev/null
+++ b/examples/rust/hello-world/src/lib.rs
@@ -0,0 +1,41 @@
+/* SPDX-License-Identifier: Apache-2.0 */
+
+/*
+ * Copyright (C) Andrew Clayton
+ * Copyright (C) Timo Stark
+ * Copyright (C) F5, Inc.
+ */
+
+use unit_wasm::rusty::*;
+
+static mut REQUEST_BUF: *mut u8 = std::ptr::null_mut();
+
+#[no_mangle]
+pub extern "C" fn uwr_request_handler(addr: *mut u8) -> i32 {
+ let ctx = &mut UWR_CTX_INITIALIZER();
+
+ uwr_init_ctx(ctx, addr, 4096);
+ uwr_set_req_buf(ctx, unsafe { &mut REQUEST_BUF }, LUW_SRB_ALLOC);
+
+ uwr_write_str!(
+ ctx,
+ " * Welcome to WebAssembly in Rust on Unit! \
+ [libunit-wasm ({}.{}.{}/{:#010x})] *\n\n",
+ LUW_VERSION_MAJOR,
+ LUW_VERSION_MINOR,
+ LUW_VERSION_PATCH,
+ LUW_VERSION_NUMBER,
+ );
+
+ uwr_http_init_headers(ctx, 2, 0);
+ uwr_http_add_header_content_type(ctx, "text/plain");
+ uwr_http_add_header_content_len(ctx);
+ uwr_http_send_headers(ctx);
+
+ uwr_http_send_response(ctx);
+ uwr_http_response_end();
+
+ uwr_free(unsafe { REQUEST_BUF });
+
+ return 0;
+}