fix compile

Signed-off-by: Bob Weinand <bob.weinand@datadoghq.com>

Author: bwoebi

Cargo.lock

@@ -59,6 +59,7 @@ tokio = { version = "1.49.0", features = [
 tokio-util = { version = "0.7", features = ["codec"] }
 
 prctl = "1.0.0"
+sys-info = { version = "0.9.0" }
 tracing = { version = "0.1", default-features = false }
 tracing-log = { version = "0.2.0", optional = true }
 tracing-subscriber = { version = "0.3.22", default-features = false, features = [

datadog-sidecar/Cargo.toml

@@ -36,7 +36,7 @@ use crate::service::debugger_diagnostics_bookkeeper::{
 use crate::service::exception_hash_rate_limiter::EXCEPTION_HASH_LIMITER;
 use crate::service::remote_configs::{RemoteConfigNotifyTarget, RemoteConfigs};
 use crate::service::stats_flusher::{
-    ensure_stats_concentrator, flush_all_stats_now, get_hostname, stats_endpoint, ConcentratorKey,
+    ensure_stats_concentrator, flush_all_stats_now, stats_endpoint, ConcentratorKey,
     SpanConcentratorState, StatsConfig,
 };
 use crate::service::tracing::trace_flusher::TraceFlusherStats;
@@ -685,7 +685,7 @@ impl SidecarInterface for ConnectionSidecarHandler {
             endpoint: stats_endpoint(&config.endpoint).unwrap_or_else(|| config.endpoint.clone()),
             flush_interval: config.flush_interval,
             hostname: if config.hostname.is_empty() {
-                get_hostname()
+                sys_info::hostname().unwrap_or_default()
             } else {
                 config.hostname.clone()
             },

datadog-sidecar/src/service/sidecar_server.rs

@@ -27,18 +27,6 @@ use std::time::{Duration, SystemTime, UNIX_EPOCH};
 use tracing::{error, info, warn};
 use zwohash::ZwoHasher;
 
-/// Detect the current machine hostname via `gethostname(2)`.  Returns an empty string on error.
-pub(crate) fn get_hostname() -> String {
-    let mut buf = vec![0u8; 256];
-    // SAFETY: buf is valid for the given length; gethostname writes a NUL-terminated string.
-    let ret = unsafe { libc::gethostname(buf.as_mut_ptr() as *mut libc::c_char, buf.len()) };
-    if ret != 0 {
-        return String::new();
-    }
-    let len = buf.iter().position(|&b| b == 0).unwrap_or(buf.len());
-    String::from_utf8_lossy(&buf[..len]).into_owned()
-}
-
 /// After the last `SpanConcentratorGuard` is dropped, keep the concentrator alive for this long
 /// before removing it (to absorb late-arriving spans from the previous app version/env).
 const IDLE_REMOVE_SECS: u64 = 600;

datadog-sidecar/src/service/stats_flusher.rs

@@ -34,9 +34,8 @@ libdd-common = { version = "3.0.2", path = "../libdd-common", default-features =
 libdd-shared-runtime = { version = "1.0.0", path = "../libdd-shared-runtime" }
 libdd-telemetry = { version = "4.0.0", path = "../libdd-telemetry", default-features = false, optional = true}
 libdd-trace-protobuf = { version = "3.0.1", path = "../libdd-trace-protobuf" }
-libdd-trace-stats = { version = "2.0.0", path = "../libdd-trace-stats" }
+libdd-trace-stats = { version = "2.0.0", path = "../libdd-trace-stats", default-features = false }
 libdd-trace-utils = { version = "3.0.1", path = "../libdd-trace-utils", default-features = false }
-libdd-ddsketch = { version = "1.0.1", path = "../libdd-ddsketch" }
 libdd-dogstatsd-client = { version = "2.0.0", path = "../libdd-dogstatsd-client", default-features = false }
 libdd-tinybytes = { version = "1.1.0", path = "../libdd-tinybytes", features = [
     "bytes_string",

libdd-data-pipeline/Cargo.toml

@@ -16,6 +16,7 @@ use libdd_common::Endpoint;
 use libdd_common::MutexExt;
 use libdd_shared_runtime::{SharedRuntime, WorkerHandle};
 use libdd_trace_stats::span_concentrator::SpanConcentrator;
+#[cfg(not(target_arch = "wasm32"))]
 use libdd_trace_stats::stats_exporter::{StatsExporter, StatsMetadata};
 use std::sync::{Arc, Mutex};
 use std::time::Duration;
@@ -256,6 +257,7 @@ pub(crate) fn is_stats_worker_active(client_side_stats: &ArcSwap<StatsComputatio
     )
 }
 
+#[cfg(not(target_arch = "wasm32"))]
 impl From<TracerMetadata> for StatsMetadata {
     fn from(m: TracerMetadata) -> StatsMetadata {
         StatsMetadata {

libdd-data-pipeline/src/trace_exporter/stats.rs

@@ -11,8 +11,10 @@ autobenches = false
 
 [dependencies]
 anyhow = "1.0"
-libdd-common = { version = "3.0.0", path = "../libdd-common", default-features = false }
+libdd-capabilities = { path = "../libdd-capabilities", version = "0.1.0" }
+libdd-common = { version = "3.0.2", path = "../libdd-common", default-features = false }
 libdd-ddsketch = { version = "1.0.1", path = "../libdd-ddsketch" }
+libdd-shared-runtime = { version = "1.0.0", path = "../libdd-shared-runtime" }
 libdd-trace-protobuf = { version = "3.0.1", path = "../libdd-trace-protobuf" }
 libdd-trace-utils = { version = "3.0.1", path = "../libdd-trace-utils", default-features = false }
 hashbrown = { version = "0.15" }
@@ -25,8 +27,6 @@ tracing = { version = "0.1", default-features = false }
 async-trait = "0.1.85"
 
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]
-libdd-capabilities = { path = "../libdd-capabilities" }
-libdd-shared-runtime = { path = "../libdd-shared-runtime" }
 libdd-capabilities-impl = { version = "0.1.0", path = "../libdd-capabilities-impl" }
 
 [lib]
@@ -42,7 +42,7 @@ criterion = "0.5.1"
 httpmock = "0.8.0-alpha.1"
 libdd-trace-utils = { path = "../libdd-trace-utils", features = ["test-utils"] }
 rand = "0.8.5"
-tokio = { version = "1.23", features = ["rt-multi-thread", "macros", "test-util", "time"] }
+tokio = { version = "1.23", features = ["rt-multi-thread", "macros", "test-util", "time"], default-features = false }
 
 [features]
 default = ["https"]