feat(profiling-ffi): ProfileStatus & ProfileError (#1404)

feat(profiling): FallibleStringWriter

feat(profiling-ffi): ProfileStatus + ProfileError

fix: io:Error -> ProfileError conversion

test: improve io::Error conv

docs: safety for Send+Sync for ProfileStatus

docs: ProfileStatus ownership

docs: ProfileStatus -> Cow<'static, CStr> cases

refactor: static message instead of unreachable_unchecked!

refactor: consolidate similar code

Co-authored-by: levi.morrison <[email protected]>

Author: morrisonlevi

Cargo.lock

@@ -38,6 +38,7 @@ datadog-ffe-ffi = ["dep:datadog-ffe-ffi"]
 build_common = { path = "../build-common" }
 
 [dependencies]
+allocator-api2 = { version = "0.2.21", default-features = false, features = ["alloc"]  }
 anyhow = "1.0"
 libdd-data-pipeline-ffi = { path = "../libdd-data-pipeline-ffi", default-features = false, optional = true }
 libdd-crashtracker-ffi = { path = "../libdd-crashtracker-ffi", default-features = false, optional = true}

libdd-profiling-ffi/Cargo.toml

@@ -8,9 +8,14 @@
 #![cfg_attr(not(test), deny(clippy::unimplemented))]
 
 mod exporter;
+mod profile_error;
+mod profile_status;
 mod profiles;
 mod string_storage;
 
+pub use profile_error::*;
+pub use profile_status::*;
+
 #[cfg(all(feature = "symbolizer", not(target_os = "windows")))]
 pub use symbolizer_ffi::*;