Fix CI

Cargo.toml

@@ -34,6 +34,7 @@ members = [
   "data-pipeline-ffi",
   "ddsketch",
   "tinybytes",
+  "agent-info",
 ]
 
 default-members = [

agent-info/Cargo.toml

@@ -6,6 +6,9 @@ edition.workspace = true
 version.workspace = true
 license.workspace = true
 
+[lib]
+bench = false
+
 [dependencies]
 anyhow = "1.0.86"
 arc-swap = "1.7.1"

agent-info/src/fetcher.rs

@@ -12,6 +12,7 @@ use std::sync::Arc;
 use std::time::Duration;
 use tokio::time::sleep;
 
+#[allow(clippy::declare_interior_mutable_const)]
 const DATADOG_AGENT_STATE: HeaderName = HeaderName::from_static("datadog-agent-state");
 
 #[derive(Debug)]
@@ -54,8 +55,8 @@ async fn fetch_info_with_state(
 
 /// Fetch the info endpoint once and return the info.
 ///
-/// Can be used for one-time access to the agent's info. If you need to access the info over
-/// long period use `AgentInfoFetcher` to keep the info up-to-date.
+/// Can be used for one-time access to the agent's info. If you need to access the info several
+/// times use `AgentInfoFetcher` to keep the info up-to-date.
 ///
 /// # Example
 /// ```no_run
@@ -69,15 +70,15 @@ async fn fetch_info_with_state(
 /// println!("Agent version is {}", agent_info.info.version.unwrap());
 /// # Ok(())
 /// # }
-/// ``
+/// ```
 pub async fn fetch_info(info_endpoint: &Endpoint) -> Result<Box<AgentInfo>> {
     match fetch_info_with_state(info_endpoint, None).await? {
         FetchInfoStatus::NewState(info) => Ok(info),
         FetchInfoStatus::SameState => Err(anyhow!("Invalid state header")),
     }
 }
 
-/// Fetch the info endpoint and update an ArcSwap based on a given time interval.
+/// Fetch the info endpoint and update an ArcSwap keeping it up-to-date.
 ///
 /// Once the fetcher has been created you can get an Arc of the config by calling `get_info`.
 /// You can then start the run method, the fetcher will update the AgentInfoArc based on the
@@ -119,17 +120,18 @@ pub struct AgentInfoFetcher {
 impl AgentInfoFetcher {
     /// Return a new `AgentInfoFetcher` fetching the `info_endpoint` on each `refresh_interval`
     /// and updating the stored info.
-    pub fn new(info_endpoint: Endpoint, fetch_interval: Duration) -> Self {
+    pub fn new(info_endpoint: Endpoint, refresh_interval: Duration) -> Self {
         Self {
             info_endpoint,
             info: Arc::new(ArcSwapOption::new(None)),
-            refresh_interval: fetch_interval,
+            refresh_interval,
         }
     }
 
     /// Start fetching the info endpoint with the given interval.
     ///
-    /// Warning: This method does not return and should be called within a dedicated task.
+    /// # Warning
+    /// This method does not return and should be called within a dedicated task.
     pub async fn run(&self) {
         loop {
             let current_info = self.info.load();
@@ -207,6 +209,7 @@ mod tests {
 
     const TEST_INFO_HASH: &str = "8c732aba385d605b010cd5bd12c03fef402eaefce989f0055aa4c7e92fe30077";
 
+    #[cfg_attr(miri, ignore)]
     #[tokio::test]
     async fn test_fetch_info_without_state() {
         let server = MockServer::start();
@@ -215,7 +218,7 @@ mod tests {
                 when.path("/info");
                 then.status(200)
                     .header("content-type", "application/json")
-                    .header(DATADOG_AGENT_STATE.to_string(), TEST_INFO_HASH)
+                    .header("datadog-agent-state", TEST_INFO_HASH)
                     .body(TEST_INFO);
             })
             .await;
@@ -232,6 +235,7 @@ mod tests {
         );
     }
 
+    #[cfg_attr(miri, ignore)]
     #[tokio::test]
     async fn test_fetch_info_with_state() {
         let server = MockServer::start();
@@ -240,7 +244,7 @@ mod tests {
                 when.path("/info");
                 then.status(200)
                     .header("content-type", "application/json")
-                    .header(DATADOG_AGENT_STATE.to_string(), TEST_INFO_HASH)
+                    .header("datadog-agent-state", TEST_INFO_HASH)
                     .body(TEST_INFO);
             })
             .await;
@@ -264,6 +268,7 @@ mod tests {
         assert!(matches!(same_state_info_status, FetchInfoStatus::SameState));
     }
 
+    #[cfg_attr(miri, ignore)]
     #[tokio::test]
     async fn test_fetch_info() {
         let server = MockServer::start();
@@ -272,7 +277,7 @@ mod tests {
                 when.path("/info");
                 then.status(200)
                     .header("content-type", "application/json")
-                    .header(DATADOG_AGENT_STATE.to_string(), TEST_INFO_HASH)
+                    .header("datadog-agent-state", TEST_INFO_HASH)
                     .body(TEST_INFO);
             })
             .await;
@@ -289,6 +294,7 @@ mod tests {
         );
     }
 
+    #[cfg_attr(miri, ignore)]
     #[tokio::test]
     async fn test_agent_info_fetcher_run() {
         let server = MockServer::start();
@@ -297,7 +303,7 @@ mod tests {
                 when.path("/info");
                 then.status(200)
                     .header("content-type", "application/json")
-                    .header(DATADOG_AGENT_STATE.to_string(), "1")
+                    .header("datadog-agent-state", "1")
                     .body(r#"{"version":"1"}"#);
             })
             .await;
@@ -323,7 +329,7 @@ mod tests {
                 when.path("/info");
                 then.status(200)
                     .header("content-type", "application/json")
-                    .header(DATADOG_AGENT_STATE.to_string(), "2")
+                    .header("datadog-agent-state", "2")
                     .body(r#"{"version":"2"}"#);
             })
             .await;

examples/ffi/crashinfo.cpp

@@ -15,7 +15,8 @@ extern "C" {
 #include <vector>
 
 static ddog_CharSlice to_slice_c_char(const char *s) { return {.ptr = s, .len = strlen(s)}; }
-static ddog_CharSlice to_slice_string(std::string &s) {
+static ddog_CharSlice to_slice_c_char(const char *s, std::size_t size) { return {.ptr = s, .len = size}; }
+static ddog_CharSlice to_slice_string(std::string const &s) {
   return {.ptr = s.data(), .len = s.length()};
 }
 
@@ -39,19 +40,28 @@ void check_result(ddog_crasht_Result result, const char *msg) {
 void add_stacktrace(std::unique_ptr<ddog_crasht_CrashInfo, Deleter> &crashinfo) {
 
   // Collect things into vectors so they stay alive till the function exits
-  std::vector<std::string> filenames;
-  std::vector<std::string> function_names;
-  for (uintptr_t i = 0; i < 20; ++i) {
-    filenames.push_back("/path/to/code/file_" + std::to_string(i));
-    function_names.push_back("func_" + std::to_string(i));
+  constexpr std::size_t nb_elements = 20;
+  std::vector<std::pair<std::string, std::string>> functions_and_filenames{nb_elements};
+  for (uintptr_t i = 0; i < nb_elements; ++i) {
+    functions_and_filenames.push_back({"func_" + std::to_string(i), "/path/to/code/file_" + std::to_string(i)});
   }
 
-  std::vector<ddog_crasht_StackFrameNames> names;
-  for (uintptr_t i = 0; i < 20; ++i) {
+  std::vector<ddog_crasht_StackFrameNames> names{nb_elements};
+  for (auto i = 0; i < nb_elements; i++) {
+    auto const& [function_name, filename] = functions_and_filenames[i];
+
+    auto function_name_slice = to_slice_string(function_name);
+    auto res = ddog_crasht_demangle(function_name_slice, DDOG_CRASHT_DEMANGLE_OPTIONS_COMPLETE);
+    if (res.tag == DDOG_CRASHT_STRING_WRAPPER_RESULT_OK)
+    {
+      auto string_result = res.ok.message;
+      function_name_slice = to_slice_c_char((const char*)string_result.ptr, string_result.len);
+    }
+
     names.push_back({.colno = ddog_Option_U32_some(i),
-                     .filename = to_slice_string(filenames[i]),
+                     .filename = to_slice_string(filename),
                      .lineno = ddog_Option_U32_some(2 * i + 3),
-                     .name = to_slice_string(function_names[i])});
+                     .name = function_name_slice});
   }
 
   std::vector<ddog_crasht_StackFrame> trace;

tools/docker/Dockerfile.build

@@ -69,6 +69,7 @@ RUN cargo search nothing --limit 1
 # create stubs to cache compilation of dependendencies
 COPY [ "Cargo.lock", "Cargo.toml", "./"]
 COPY "alloc/Cargo.toml" "alloc/"
+COPY "agent-info/Cargo.toml" "agent-info/"
 COPY "build-common/Cargo.toml" "build-common/"
 COPY "crashtracker/Cargo.toml" "crashtracker/"
 COPY "crashtracker-ffi/Cargo.toml" "crashtracker-ffi/"