diff --git a/bindings/rust/src/cmap.rs b/bindings/rust/src/cmap.rs index f35f58f9..93539db3 100644 --- a/bindings/rust/src/cmap.rs +++ b/bindings/rust/src/cmap.rs @@ -1,898 +1,898 @@ // libcmap interface for Rust // Copyright (c) 2021 Red Hat, Inc. // // All rights reserved. // // Author: Christine Caulfield (ccaulfi@redhat.com) // #![allow(clippy::type_complexity)] // For the code generated by bindgen use crate::sys::cmap as ffi; use num_enum::TryFromPrimitive; use std::any::type_name; use std::collections::HashMap; use std::convert::TryFrom; use std::ffi::CString; use std::fmt; use std::os::raw::{c_char, c_int, c_void}; use std::ptr::copy_nonoverlapping; use std::sync::Mutex; use crate::string_from_bytes; use crate::{CsError, DispatchFlags, Result}; // Maps: /// "Maps" available to [initialize] pub enum Map { Icmap, Stats, } bitflags! { /// Tracker types for cmap, both passed into [track_add] /// and returned from its callback. pub struct TrackType: i32 { const DELETE = 1; const MODIFY = 2; const ADD = 4; const PREFIX = 8; } } impl fmt::Display for TrackType { fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { if self.contains(TrackType::DELETE) { write!(f, "DELETE ")? } if self.contains(TrackType::MODIFY) { write!(f, "MODIFY ")? } if self.contains(TrackType::ADD) { write!(f, "ADD ")? } if self.contains(TrackType::PREFIX) { write!(f, "PREFIX ") } else { Ok(()) } } } #[derive(Copy, Clone)] /// A handle returned from [initialize], needs to be passed to all other cmap API calls pub struct Handle { cmap_handle: u64, } #[derive(Copy, Clone)] /// A handle for a specific CMAP tracker. returned from [track_add]. /// There may be multiple TrackHandles per [Handle] pub struct TrackHandle { track_handle: u64, notify_callback: NotifyCallback, } // Used to convert CMAP handles into one of ours, for callbacks lazy_static! { static ref TRACKHANDLE_HASH: Mutex> = Mutex::new(HashMap::new()); static ref HANDLE_HASH: Mutex> = Mutex::new(HashMap::new()); } /// Initialize a connection to the cmap subsystem. /// map specifies which cmap "map" to use. /// Returns a [Handle] into the cmap library pub fn initialize(map: Map) -> Result { let mut handle: ffi::cmap_handle_t = 0; let c_map = match map { Map::Icmap => ffi::CMAP_MAP_ICMAP, Map::Stats => ffi::CMAP_MAP_STATS, }; unsafe { let res = ffi::cmap_initialize_map(&mut handle, c_map); if res == ffi::CS_OK { let rhandle = Handle { cmap_handle: handle, }; HANDLE_HASH.lock().unwrap().insert(handle, rhandle); Ok(rhandle) } else { Err(CsError::from_c(res)) } } } /// Finish with a connection to corosync. /// Takes a [Handle] as returned from [initialize] pub fn finalize(handle: Handle) -> Result<()> { let res = unsafe { ffi::cmap_finalize(handle.cmap_handle) }; if res == ffi::CS_OK { HANDLE_HASH.lock().unwrap().remove(&handle.cmap_handle); Ok(()) } else { Err(CsError::from_c(res)) } } /// Return a file descriptor to use for poll/select on the CMAP handle. /// Takes a [Handle] as returned from [initialize], /// returns a C file descriptor as i32 pub fn fd_get(handle: Handle) -> Result { let c_fd: *mut c_int = &mut 0 as *mut _ as *mut c_int; let res = unsafe { ffi::cmap_fd_get(handle.cmap_handle, c_fd) }; if res == ffi::CS_OK { Ok(c_fd as i32) } else { Err(CsError::from_c(res)) } } /// Dispatch any/all active CMAP callbacks. /// Takes a [Handle] as returned from [initialize], /// flags [DispatchFlags] tells it how many items to dispatch before returning pub fn dispatch(handle: Handle, flags: DispatchFlags) -> Result<()> { let res = unsafe { ffi::cmap_dispatch(handle.cmap_handle, flags as u32) }; if res == ffi::CS_OK { Ok(()) } else { Err(CsError::from_c(res)) } } /// Get the current 'context' value for this handle /// The context value is an arbitrary value that is always passed /// back to callbacks to help identify the source pub fn context_get(handle: Handle) -> Result { let (res, context) = unsafe { let mut context: u64 = 0; let c_context: *mut c_void = &mut context as *mut _ as *mut c_void; let r = ffi::cmap_context_get(handle.cmap_handle, c_context as *mut *const c_void); (r, context) }; if res == ffi::CS_OK { Ok(context) } else { Err(CsError::from_c(res)) } } /// Set the current 'context' value for this handle /// The context value is an arbitrary value that is always passed /// back to callbacks to help identify the source. /// Normally this is set in [initialize], but this allows it to be changed pub fn context_set(handle: Handle, context: u64) -> Result<()> { let res = unsafe { let c_context = context as *mut c_void; ffi::cmap_context_set(handle.cmap_handle, c_context) }; if res == ffi::CS_OK { Ok(()) } else { Err(CsError::from_c(res)) } } /// The type of data returned from [get] or in a /// tracker callback or iterator, part of the [Data] struct #[derive(Clone, Copy, Debug, Eq, PartialEq, TryFromPrimitive)] #[repr(u32)] pub enum DataType { Int8 = ffi::CMAP_VALUETYPE_INT8, UInt8 = ffi::CMAP_VALUETYPE_UINT8, Int16 = ffi::CMAP_VALUETYPE_INT16, UInt16 = ffi::CMAP_VALUETYPE_UINT16, Int32 = ffi::CMAP_VALUETYPE_INT32, UInt32 = ffi::CMAP_VALUETYPE_UINT32, Int64 = ffi::CMAP_VALUETYPE_INT64, UInt64 = ffi::CMAP_VALUETYPE_UINT64, Float = ffi::CMAP_VALUETYPE_FLOAT, Double = ffi::CMAP_VALUETYPE_DOUBLE, String = ffi::CMAP_VALUETYPE_STRING, Binary = ffi::CMAP_VALUETYPE_BINARY, Unknown = 999, } fn cmap_to_enum(cmap_type: u32) -> DataType { match DataType::try_from(cmap_type) { Ok(e) => e, Err(_) => DataType::Unknown, } } /// Data returned from the cmap::get() call and tracker & iterators. /// Contains the data itself and the type of that data. pub enum Data { Int8(i8), UInt8(u8), Int16(i16), UInt16(u16), Int32(i32), UInt32(u32), Int64(i64), UInt64(u64), Float(f32), Double(f64), String(String), Binary(Vec), Unknown, } impl fmt::Display for DataType { fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { match self { DataType::Int8 => write!(f, "Int8"), DataType::UInt8 => write!(f, "UInt8"), DataType::Int16 => write!(f, "Int16"), DataType::UInt16 => write!(f, "UInt16"), DataType::Int32 => write!(f, "Int32"), DataType::UInt32 => write!(f, "UInt32"), DataType::Int64 => write!(f, "Int64"), DataType::UInt64 => write!(f, "UInt64"), DataType::Float => write!(f, "Float"), DataType::Double => write!(f, "Double"), DataType::String => write!(f, "String"), DataType::Binary => write!(f, "Binary"), DataType::Unknown => write!(f, "Unknown"), } } } impl fmt::Display for Data { fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { match self { - Data::Int8(v) => write!(f, "{} (Int8)", v), - Data::UInt8(v) => write!(f, "{} (UInt8)", v), - Data::Int16(v) => write!(f, "{} (Int16)", v), - Data::UInt16(v) => write!(f, "{} (UInt16)", v), - Data::Int32(v) => write!(f, "{} (Int32)", v), - Data::UInt32(v) => write!(f, "{} (UInt32)", v), - Data::Int64(v) => write!(f, "{} (Int64)", v), - Data::UInt64(v) => write!(f, "{} (UInt64)", v), - Data::Float(v) => write!(f, "{} (Float)", v), - Data::Double(v) => write!(f, "{} (Double)", v), - Data::String(v) => write!(f, "{} (String)", v), - Data::Binary(v) => write!(f, "{:?} (Binary)", v), + Data::Int8(v) => write!(f, "{v} (Int8)"), + Data::UInt8(v) => write!(f, "{v} (UInt8)"), + Data::Int16(v) => write!(f, "{v} (Int16)"), + Data::UInt16(v) => write!(f, "{v} (UInt16)"), + Data::Int32(v) => write!(f, "{v} (Int32)"), + Data::UInt32(v) => write!(f, "{v} (UInt32)"), + Data::Int64(v) => write!(f, "{v} (Int64)"), + Data::UInt64(v) => write!(f, "{v} (UInt64)"), + Data::Float(v) => write!(f, "{v} (Float)"), + Data::Double(v) => write!(f, "{v} (Double)"), + Data::String(v) => write!(f, "{v} (String)"), + Data::Binary(v) => write!(f, "{v:?} (Binary)"), Data::Unknown => write!(f, "Unknown)"), } } } const CMAP_KEYNAME_MAXLENGTH: usize = 255; fn string_to_cstring_validated(key: &str, maxlen: usize) -> Result { if maxlen > 0 && key.chars().count() >= maxlen { return Err(CsError::CsErrInvalidParam); } match CString::new(key) { Ok(n) => Ok(n), Err(_) => Err(CsError::CsErrLibrary), } } fn set_value( handle: Handle, key_name: &str, datatype: DataType, value: *mut c_void, length: usize, ) -> Result<()> { let csname = string_to_cstring_validated(key_name, CMAP_KEYNAME_MAXLENGTH)?; let res = unsafe { ffi::cmap_set( handle.cmap_handle, csname.as_ptr(), value, length, datatype as u32, ) }; if res == ffi::CS_OK { Ok(()) } else { Err(CsError::from_c(res)) } } // Returns type and size fn generic_to_cmap(_value: T) -> (DataType, usize) { match type_name::() { "u8" => (DataType::UInt8, 1), "i8" => (DataType::Int8, 1), "u16" => (DataType::UInt16, 2), "i16" => (DataType::Int16, 2), "u32" => (DataType::UInt32, 4), "i32" => (DataType::Int32, 4), "u64" => (DataType::UInt64, 4), "f32" => (DataType::Float, 4), "f64" => (DataType::Double, 8), "&str" => (DataType::String, 0), // Binary not currently supported here _ => (DataType::Unknown, 0), } } fn is_numeric_type(dtype: DataType) -> bool { matches!( dtype, DataType::UInt8 | DataType::Int8 | DataType::UInt16 | DataType::Int16 | DataType::UInt32 | DataType::Int32 | DataType::UInt64 | DataType::Int64 | DataType::Float | DataType::Double ) } /// Function to set a generic numeric value /// This doesn't work for strings or binaries pub fn set_number(handle: Handle, key_name: &str, value: T) -> Result<()> { let (c_type, c_size) = generic_to_cmap(value); if is_numeric_type(c_type) { let mut tmp = value; let c_value: *mut c_void = &mut tmp as *mut _ as *mut c_void; set_value(handle, key_name, c_type, c_value as *mut c_void, c_size) } else { Err(CsError::CsErrNotSupported) } } pub fn set_u8(handle: Handle, key_name: &str, value: u8) -> Result<()> { let mut tmp = value; let c_value: *mut c_void = &mut tmp as *mut _ as *mut c_void; set_value(handle, key_name, DataType::UInt8, c_value as *mut c_void, 1) } /// Sets an i8 value into cmap pub fn set_i8(handle: Handle, key_name: &str, value: i8) -> Result<()> { let mut tmp = value; let c_value: *mut c_void = &mut tmp as *mut _ as *mut c_void; set_value(handle, key_name, DataType::Int8, c_value as *mut c_void, 1) } /// Sets a u16 value into cmap pub fn set_u16(handle: Handle, key_name: &str, value: u16) -> Result<()> { let mut tmp = value; let c_value: *mut c_void = &mut tmp as *mut _ as *mut c_void; set_value( handle, key_name, DataType::UInt16, c_value as *mut c_void, 2, ) } /// Sets an i16 value into cmap pub fn set_i16(handle: Handle, key_name: &str, value: i16) -> Result<()> { let mut tmp = value; let c_value: *mut c_void = &mut tmp as *mut _ as *mut c_void; set_value(handle, key_name, DataType::Int16, c_value as *mut c_void, 2) } /// Sets a u32 value into cmap pub fn set_u32(handle: Handle, key_name: &str, value: u32) -> Result<()> { let mut tmp = value; let c_value: *mut c_void = &mut tmp as *mut _ as *mut c_void; set_value(handle, key_name, DataType::UInt32, c_value, 4) } /// Sets an i32 value into cmap pub fn set_i132(handle: Handle, key_name: &str, value: i32) -> Result<()> { let mut tmp = value; let c_value: *mut c_void = &mut tmp as *mut _ as *mut c_void; set_value(handle, key_name, DataType::Int32, c_value as *mut c_void, 4) } /// Sets a u64 value into cmap pub fn set_u64(handle: Handle, key_name: &str, value: u64) -> Result<()> { let mut tmp = value; let c_value: *mut c_void = &mut tmp as *mut _ as *mut c_void; set_value( handle, key_name, DataType::UInt64, c_value as *mut c_void, 8, ) } /// Sets an i64 value into cmap pub fn set_i164(handle: Handle, key_name: &str, value: i64) -> Result<()> { let mut tmp = value; let c_value: *mut c_void = &mut tmp as *mut _ as *mut c_void; set_value(handle, key_name, DataType::Int64, c_value as *mut c_void, 8) } /// Sets a string value into cmap pub fn set_string(handle: Handle, key_name: &str, value: &str) -> Result<()> { let v_string = string_to_cstring_validated(value, 0)?; set_value( handle, key_name, DataType::String, v_string.as_ptr() as *mut c_void, value.chars().count(), ) } /// Sets a binary value into cmap pub fn set_binary(handle: Handle, key_name: &str, value: &[u8]) -> Result<()> { set_value( handle, key_name, DataType::Binary, value.as_ptr() as *mut c_void, value.len(), ) } /// Sets a [Data] type into cmap pub fn set(handle: Handle, key_name: &str, data: &Data) -> Result<()> { let (datatype, datalen, c_value) = match data { Data::Int8(v) => { let mut tmp = *v; let cv: *mut c_void = &mut tmp as *mut _ as *mut c_void; (DataType::Int8, 1, cv) } Data::UInt8(v) => { let mut tmp = *v; let cv: *mut c_void = &mut tmp as *mut _ as *mut c_void; (DataType::UInt8, 1, cv) } Data::Int16(v) => { let mut tmp = *v; let cv: *mut c_void = &mut tmp as *mut _ as *mut c_void; (DataType::Int16, 2, cv) } Data::UInt16(v) => { let mut tmp = *v; let cv: *mut c_void = &mut tmp as *mut _ as *mut c_void; (DataType::UInt8, 2, cv) } Data::Int32(v) => { let mut tmp = *v; let cv: *mut c_void = &mut tmp as *mut _ as *mut c_void; (DataType::Int32, 4, cv) } Data::UInt32(v) => { let mut tmp = *v; let cv: *mut c_void = &mut tmp as *mut _ as *mut c_void; (DataType::UInt32, 4, cv) } Data::Int64(v) => { let mut tmp = *v; let cv: *mut c_void = &mut tmp as *mut _ as *mut c_void; (DataType::Int64, 8, cv) } Data::UInt64(v) => { let mut tmp = *v; let cv: *mut c_void = &mut tmp as *mut _ as *mut c_void; (DataType::UInt64, 8, cv) } Data::Float(v) => { let mut tmp = *v; let cv: *mut c_void = &mut tmp as *mut _ as *mut c_void; (DataType::Float, 4, cv) } Data::Double(v) => { let mut tmp = *v; let cv: *mut c_void = &mut tmp as *mut _ as *mut c_void; (DataType::Double, 8, cv) } Data::String(v) => { let cv = string_to_cstring_validated(v, 0)?; // Can't let cv go out of scope return set_value( handle, key_name, DataType::String, cv.as_ptr() as *mut c_void, v.chars().count(), ); } Data::Binary(v) => { // Vec doesn't return quite the right types. return set_value( handle, key_name, DataType::Binary, v.as_ptr() as *mut c_void, v.len(), ); } Data::Unknown => return Err(CsError::CsErrInvalidParam), }; set_value(handle, key_name, datatype, c_value, datalen) } // Local function to parse out values from the C mess // Assumes the c_value is complete. So cmap::get() will need to check the size // and re-get before calling us with a resized buffer fn c_to_data(value_size: usize, c_key_type: u32, c_value: *const u8) -> Result { unsafe { match cmap_to_enum(c_key_type) { DataType::UInt8 => { let mut ints = [0u8; 1]; copy_nonoverlapping(c_value as *mut u8, ints.as_mut_ptr() as *mut u8, value_size); Ok(Data::UInt8(ints[0])) } DataType::Int8 => { let mut ints = [0i8; 1]; copy_nonoverlapping(c_value as *mut u8, ints.as_mut_ptr() as *mut u8, value_size); Ok(Data::Int8(ints[0])) } DataType::UInt16 => { let mut ints = [0u16; 1]; copy_nonoverlapping(c_value as *mut u8, ints.as_mut_ptr() as *mut u8, value_size); Ok(Data::UInt16(ints[0])) } DataType::Int16 => { let mut ints = [0i16; 1]; copy_nonoverlapping(c_value as *mut u8, ints.as_mut_ptr() as *mut u8, value_size); Ok(Data::Int16(ints[0])) } DataType::UInt32 => { let mut ints = [0u32; 1]; copy_nonoverlapping(c_value as *mut u8, ints.as_mut_ptr() as *mut u8, value_size); Ok(Data::UInt32(ints[0])) } DataType::Int32 => { let mut ints = [0i32; 1]; copy_nonoverlapping(c_value as *mut u8, ints.as_mut_ptr() as *mut u8, value_size); Ok(Data::Int32(ints[0])) } DataType::UInt64 => { let mut ints = [0u64; 1]; copy_nonoverlapping(c_value as *mut u8, ints.as_mut_ptr() as *mut u8, value_size); Ok(Data::UInt64(ints[0])) } DataType::Int64 => { let mut ints = [0i64; 1]; copy_nonoverlapping(c_value as *mut u8, ints.as_mut_ptr() as *mut u8, value_size); Ok(Data::Int64(ints[0])) } DataType::Float => { let mut ints = [0f32; 1]; copy_nonoverlapping(c_value as *mut u8, ints.as_mut_ptr() as *mut u8, value_size); Ok(Data::Float(ints[0])) } DataType::Double => { let mut ints = [0f64; 1]; copy_nonoverlapping(c_value as *mut u8, ints.as_mut_ptr() as *mut u8, value_size); Ok(Data::Double(ints[0])) } DataType::String => { let mut ints = Vec::::new(); ints.resize(value_size, 0u8); copy_nonoverlapping(c_value as *mut u8, ints.as_mut_ptr() as *mut u8, value_size); // -1 here so CString doesn't see the NUL let cs = match CString::new(&ints[0..value_size - 1_usize]) { Ok(c1) => c1, Err(_) => return Err(CsError::CsErrLibrary), }; match cs.into_string() { Ok(s) => Ok(Data::String(s)), Err(_) => Err(CsError::CsErrLibrary), } } DataType::Binary => { let mut ints = Vec::::new(); ints.resize(value_size, 0u8); copy_nonoverlapping(c_value as *mut u8, ints.as_mut_ptr() as *mut u8, value_size); Ok(Data::Binary(ints)) } DataType::Unknown => Ok(Data::Unknown), } } } const INITIAL_SIZE: usize = 256; /// Get a value from cmap, returned as a [Data] struct, so could be anything pub fn get(handle: Handle, key_name: &str) -> Result { let csname = string_to_cstring_validated(key_name, CMAP_KEYNAME_MAXLENGTH)?; let mut value_size: usize = 16; let mut c_key_type: u32 = 0; let mut c_value = Vec::::new(); // First guess at a size for Strings and Binaries. Expand if needed c_value.resize(INITIAL_SIZE, 0u8); unsafe { let res = ffi::cmap_get( handle.cmap_handle, csname.as_ptr(), c_value.as_mut_ptr() as *mut c_void, &mut value_size, &mut c_key_type, ); if res == ffi::CS_OK { if value_size > INITIAL_SIZE { // Need to try again with a bigger buffer c_value.resize(value_size, 0u8); let res2 = ffi::cmap_get( handle.cmap_handle, csname.as_ptr(), c_value.as_mut_ptr() as *mut c_void, &mut value_size, &mut c_key_type, ); if res2 != ffi::CS_OK { return Err(CsError::from_c(res2)); } } // Convert to Rust type and return as a Data enum c_to_data(value_size, c_key_type, c_value.as_ptr()) } else { Err(CsError::from_c(res)) } } } /// increment the value in a cmap key (must be a numeric type) pub fn inc(handle: Handle, key_name: &str) -> Result<()> { let csname = string_to_cstring_validated(key_name, CMAP_KEYNAME_MAXLENGTH)?; let res = unsafe { ffi::cmap_inc(handle.cmap_handle, csname.as_ptr()) }; if res == ffi::CS_OK { Ok(()) } else { Err(CsError::from_c(res)) } } /// decrement the value in a cmap key (must be a numeric type) pub fn dec(handle: Handle, key_name: &str) -> Result<()> { let csname = string_to_cstring_validated(key_name, CMAP_KEYNAME_MAXLENGTH)?; let res = unsafe { ffi::cmap_dec(handle.cmap_handle, csname.as_ptr()) }; if res == ffi::CS_OK { Ok(()) } else { Err(CsError::from_c(res)) } } // Callback for CMAP notify events from corosync, convert params to Rust and pass on. extern "C" fn rust_notify_fn( cmap_handle: ffi::cmap_handle_t, cmap_track_handle: ffi::cmap_track_handle_t, event: i32, key_name: *const ::std::os::raw::c_char, new_value: ffi::cmap_notify_value, old_value: ffi::cmap_notify_value, user_data: *mut ::std::os::raw::c_void, ) { // If cmap_handle doesn't match then throw away the callback. if let Some(r_cmap_handle) = HANDLE_HASH.lock().unwrap().get(&cmap_handle) { if let Some(h) = TRACKHANDLE_HASH.lock().unwrap().get(&cmap_track_handle) { let r_keyname = match string_from_bytes(key_name, CMAP_KEYNAME_MAXLENGTH) { Ok(s) => s, Err(_) => return, }; let r_old = match c_to_data(old_value.len, old_value.type_, old_value.data as *const u8) { Ok(v) => v, Err(_) => return, }; let r_new = match c_to_data(new_value.len, new_value.type_, new_value.data as *const u8) { Ok(v) => v, Err(_) => return, }; if let Some(cb) = h.notify_callback.notify_fn { (cb)( r_cmap_handle, h, TrackType { bits: event }, &r_keyname, &r_old, &r_new, user_data as u64, ); } } } } /// Callback function called every time a tracker reports a change in a tracked value #[derive(Copy, Clone)] pub struct NotifyCallback { pub notify_fn: Option< fn( handle: &Handle, track_handle: &TrackHandle, event: TrackType, key_name: &str, new_value: &Data, old_value: &Data, user_data: u64, ), >, } /// Track changes in cmap values, multiple [TrackHandle]s per [Handle] are allowed pub fn track_add( handle: Handle, key_name: &str, track_type: TrackType, notify_callback: &NotifyCallback, user_data: u64, ) -> Result { let c_name = string_to_cstring_validated(key_name, CMAP_KEYNAME_MAXLENGTH)?; let mut c_trackhandle = 0u64; let res = unsafe { ffi::cmap_track_add( handle.cmap_handle, c_name.as_ptr(), track_type.bits, Some(rust_notify_fn), user_data as *mut c_void, &mut c_trackhandle, ) }; if res == ffi::CS_OK { let rhandle = TrackHandle { track_handle: c_trackhandle, notify_callback: *notify_callback, }; TRACKHANDLE_HASH .lock() .unwrap() .insert(c_trackhandle, rhandle); Ok(rhandle) } else { Err(CsError::from_c(res)) } } /// Remove a tracker frm this [Handle] pub fn track_delete(handle: Handle, track_handle: TrackHandle) -> Result<()> { let res = unsafe { ffi::cmap_track_delete(handle.cmap_handle, track_handle.track_handle) }; if res == ffi::CS_OK { TRACKHANDLE_HASH .lock() .unwrap() .remove(&track_handle.track_handle); Ok(()) } else { Err(CsError::from_c(res)) } } /// Create one of these to start iterating over cmap values. pub struct CmapIterStart { iter_handle: u64, cmap_handle: u64, } pub struct CmapIntoIter { cmap_handle: u64, iter_handle: u64, } /// Value returned from the iterator. contains the key name and the [Data] pub struct CmapIter { key_name: String, data: Data, } impl CmapIter { pub fn key_name(&self) -> &str { &self.key_name } pub fn data(&self) -> &Data { &self.data } } impl fmt::Debug for CmapIter { fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { write!(f, "{}: {}", self.key_name, self.data) } } impl Iterator for CmapIntoIter { type Item = CmapIter; fn next(&mut self) -> Option { let mut c_key_name = [0u8; CMAP_KEYNAME_MAXLENGTH + 1]; let mut c_value_len = 0usize; let mut c_value_type = 0u32; let res = unsafe { ffi::cmap_iter_next( self.cmap_handle, self.iter_handle, c_key_name.as_mut_ptr() as *mut c_char, &mut c_value_len, &mut c_value_type, ) }; if res == ffi::CS_OK { // Return the Data for this iteration let mut c_value = Vec::::new(); c_value.resize(c_value_len, 0u8); let res = unsafe { ffi::cmap_get( self.cmap_handle, c_key_name.as_ptr() as *mut c_char, c_value.as_mut_ptr() as *mut c_void, &mut c_value_len, &mut c_value_type, ) }; if res == ffi::CS_OK { match c_to_data(c_value_len, c_value_type, c_value.as_ptr()) { Ok(d) => { let r_keyname = match string_from_bytes( c_key_name.as_ptr() as *mut c_char, CMAP_KEYNAME_MAXLENGTH, ) { Ok(s) => s, Err(_) => return None, }; Some(CmapIter { key_name: r_keyname, data: d, }) } Err(_) => None, } } else { // cmap_get returned error None } } else if res == ffi::CS_ERR_NO_SECTIONS { // End of list unsafe { // Yeah, we don't check this return code. There's nowhere to report it. ffi::cmap_iter_finalize(self.cmap_handle, self.iter_handle) }; None } else { None } } } impl CmapIterStart { /// Create a new [CmapIterStart] object for iterating over a list of cmap keys pub fn new(cmap_handle: Handle, prefix: &str) -> Result { let mut iter_handle: u64 = 0; let res = unsafe { let c_prefix = string_to_cstring_validated(prefix, CMAP_KEYNAME_MAXLENGTH)?; ffi::cmap_iter_init(cmap_handle.cmap_handle, c_prefix.as_ptr(), &mut iter_handle) }; if res == ffi::CS_OK { Ok(CmapIterStart { cmap_handle: cmap_handle.cmap_handle, iter_handle, }) } else { Err(CsError::from_c(res)) } } } impl IntoIterator for CmapIterStart { type Item = CmapIter; type IntoIter = CmapIntoIter; fn into_iter(self) -> Self::IntoIter { CmapIntoIter { iter_handle: self.iter_handle, cmap_handle: self.cmap_handle, } } } diff --git a/bindings/rust/tests/src/bin/cfg-test.rs b/bindings/rust/tests/src/bin/cfg-test.rs index 02eda099..cd70d388 100644 --- a/bindings/rust/tests/src/bin/cfg-test.rs +++ b/bindings/rust/tests/src/bin/cfg-test.rs @@ -1,136 +1,135 @@ // Test the CFG library. Requires that corosync is running and that we are root. extern crate rust_corosync as corosync; use corosync::{cfg, NodeId}; use std::thread::spawn; fn dispatch_thread(handle: cfg::Handle) { loop { if cfg::dispatch(handle, corosync::DispatchFlags::One).is_err() { return; } } } // Test the shutdown callback fn shutdown_check_fn(handle: &cfg::Handle, _flags: u32) { println!("in shutdown callback"); // DON'T shutdown corosync - we're just testing if let Err(e) = cfg::reply_to_shutdown(*handle, cfg::ShutdownReply::No) { - println!("Error in CFG replyto_shutdown: {}", e); + println!("Error in CFG replyto_shutdown: {e}"); } } fn main() { // Initialise the callbacks data let cb = cfg::Callbacks { corosync_cfg_shutdown_callback_fn: Some(shutdown_check_fn), }; let handle = match cfg::initialize(&cb) { Ok(h) => { println!("cfg initialized."); h } Err(e) => { - println!("Error in CFG init: {}", e); + println!("Error in CFG init: {e}"); return; } }; // Open two handles to CFG so that the second one can refuse shutdown let handle2 = match cfg::initialize(&cb) { Ok(h) => { println!("cfg2 initialized."); h } Err(e) => { - println!("Error in CFG init: {}", e); + println!("Error in CFG init: {e}"); return; } }; match cfg::track_start(handle2, cfg::TrackFlags::None) { Ok(_) => { // Run handle2 dispatch in its own thread spawn(move || dispatch_thread(handle2)); } Err(e) => { - println!("Error in CFG track_start: {}", e); + println!("Error in CFG track_start: {e}"); } }; let local_nodeid = { match cfg::local_get(handle) { Ok(n) => { - println!("Local nodeid is {}", n); + println!("Local nodeid is {n}"); Some(n) } Err(e) => { - println!("Error in CFG local_get: {}", e); + println!("Error in CFG local_get: {e}"); None } } }; // Test node_status_get. // node status for the local node looks odd (cos it's the loopback connection), so // we try for a node ID one less or more than us just to get output that looks // sensible to the user. if let Some(our_nodeid) = local_nodeid { let us_plus1 = NodeId::from(u32::from(our_nodeid) + 1); let us_less1 = NodeId::from(u32::from(our_nodeid) - 1); let mut res = cfg::node_status_get(handle, us_plus1, cfg::NodeStatusVersion::V1); if let Err(e) = res { - println!("Error from node_status_get on nodeid {}: {}", us_plus1, e); + println!("Error from node_status_get on nodeid {us_plus1}: {e}"); res = cfg::node_status_get(handle, us_less1, cfg::NodeStatusVersion::V1); }; match res { Ok(ns) => { println!("Node Status for nodeid {}", ns.nodeid); println!(" reachable: {}", ns.reachable); println!(" remote: {}", ns.remote); println!(" onwire_min: {}", ns.onwire_min); println!(" onwire_max: {}", ns.onwire_max); println!(" onwire_ver: {}", ns.onwire_ver); for (ls_num, ls) in ns.link_status.iter().enumerate() { if ls.enabled { - println!(" Link {}", ls_num); + println!(" Link {ls_num}"); println!(" connected: {}", ls.connected); println!(" mtu: {}", ls.mtu); println!(" src: {}", ls.src_ipaddr); println!(" dst: {}", ls.dst_ipaddr); } } } Err(e) => { println!( - "Error in CFG node_status get: {} (tried nodeids {} & {})", - e, us_plus1, us_less1 + "Error in CFG node_status get: {e} (tried nodeids {us_plus1} & {us_less1})" ); } } } // This should not shutdown corosync because the callback on handle2 will refuse it. match cfg::try_shutdown(handle, cfg::ShutdownFlags::Request) { Ok(_) => { println!("CFG try_shutdown suceeded, should return busy"); } Err(e) => { if e != corosync::CsError::CsErrBusy { - println!("Error in CFG try_shutdown: {}", e); + println!("Error in CFG try_shutdown: {e}"); } } } // Wait for events loop { if cfg::dispatch(handle, corosync::DispatchFlags::One).is_err() { break; } } println!("ERROR: Corosync quit"); } diff --git a/bindings/rust/tests/src/bin/cmap-test.rs b/bindings/rust/tests/src/bin/cmap-test.rs index 5747ba35..f4356536 100644 --- a/bindings/rust/tests/src/bin/cmap-test.rs +++ b/bindings/rust/tests/src/bin/cmap-test.rs @@ -1,198 +1,195 @@ // Test the CMAP library. Requires that corosync is running and that we are root. extern crate rust_corosync as corosync; use corosync::cmap; fn track_notify_fn( _handle: &cmap::Handle, _track_handle: &cmap::TrackHandle, event: cmap::TrackType, key_name: &str, old_value: &cmap::Data, new_value: &cmap::Data, user_data: u64, ) { println!("Track notify callback"); - println!( - "Key: {}, event: {}, user_data: {}", - key_name, event, user_data - ); - println!(" Old value: {}", old_value); - println!(" New value: {}", new_value); + println!("Key: {key_name}, event: {event}, user_data: {user_data}"); + println!(" Old value: {old_value}"); + println!(" New value: {new_value}"); } fn main() { let handle = match cmap::initialize(cmap::Map::Icmap) { Ok(h) => { println!("cmap initialized."); h } Err(e) => { - println!("Error in CMAP (Icmap) init: {}", e); + println!("Error in CMAP (Icmap) init: {e}"); return; } }; // Test some SETs if let Err(e) = cmap::set_u32(handle, "test.test_uint32", 456) { - println!("Error in CMAP set_u32: {}", e); + println!("Error in CMAP set_u32: {e}"); return; }; if let Err(e) = cmap::set_i16(handle, "test.test_int16", -789) { - println!("Error in CMAP set_i16: {}", e); + println!("Error in CMAP set_i16: {e}"); return; }; if let Err(e) = cmap::set_number(handle, "test.test_num_1", 6809u32) { - println!("Error in CMAP set_number(u32): {}", e); + println!("Error in CMAP set_number(u32): {e}"); return; }; // NOT PI (just to avoid clippy whingeing) if let Err(e) = cmap::set_number(handle, "test.test_num_2", 3.24159265) { - println!("Error in CMAP set_number(f32): {}", e); + println!("Error in CMAP set_number(f32): {e}"); return; }; if let Err(e) = cmap::set_string(handle, "test.test_string", "Hello from Rust") { - println!("Error in CMAP set_string: {}", e); + println!("Error in CMAP set_string: {e}"); return; }; let test_d = cmap::Data::UInt64(0xdeadbeefbacecafe); if let Err(e) = cmap::set(handle, "test.test_data", &test_d) { - println!("Error in CMAP set_data: {}", e); + println!("Error in CMAP set_data: {e}"); return; }; // let test_d2 = cmap::Data::UInt32(6809); let test_d2 = cmap::Data::String("Test string in data 12345".to_string()); if let Err(e) = cmap::set(handle, "test.test_again", &test_d2) { - println!("Error in CMAP set_data2: {}", e); + println!("Error in CMAP set_data2: {e}"); return; }; // get them back again match cmap::get(handle, "test.test_uint32") { Ok(v) => { - println!("GOT uint32 {}", v); + println!("GOT uint32 {v}"); } Err(e) => { - println!("Error in CMAP get: {}", e); + println!("Error in CMAP get: {e}"); return; } }; match cmap::get(handle, "test.test_int16") { Ok(v) => { - println!("GOT uint16 {}", v); + println!("GOT uint16 {v}"); } Err(e) => { - println!("Error in CMAP get: {}", e); + println!("Error in CMAP get: {e}"); return; } }; match cmap::get(handle, "test.test_num_1") { Ok(v) => { - println!("GOT num {}", v); + println!("GOT num {v}"); } Err(e) => { - println!("Error in CMAP get: {}", e); + println!("Error in CMAP get: {e}"); return; } }; match cmap::get(handle, "test.test_num_2") { Ok(v) => { - println!("GOT num {}", v); + println!("GOT num {v}"); } Err(e) => { - println!("Error in CMAP get: {}", e); + println!("Error in CMAP get: {e}"); return; } }; match cmap::get(handle, "test.test_string") { Ok(v) => { - println!("GOT string {}", v); + println!("GOT string {v}"); } Err(e) => { - println!("Error in CMAP get: {}", e); + println!("Error in CMAP get: {e}"); return; } }; match cmap::get(handle, "test.test_data") { Ok(v) => match v { - cmap::Data::UInt64(u) => println!("GOT data value {:x}", u), - _ => println!("ERROR type was not UInt64, got {}", v), + cmap::Data::UInt64(u) => println!("GOT data value {u:x}"), + _ => println!("ERROR type was not UInt64, got {v}"), }, Err(e) => { - println!("Error in CMAP get: {}", e); + println!("Error in CMAP get: {e}"); return; } }; // Test an iterator match cmap::CmapIterStart::new(handle, "totem.") { Ok(cmap_iter) => { for i in cmap_iter { - println!("ITER: {:?}", i); + println!("ITER: {i:?}"); } println!(); } Err(e) => { - println!("Error in CMAP iter start: {}", e); + println!("Error in CMAP iter start: {e}"); } } // Close this handle if let Err(e) = cmap::finalize(handle) { - println!("Error in CMAP get: {}", e); + println!("Error in CMAP get: {e}"); return; }; // Test notifications on the stats map let handle = match cmap::initialize(cmap::Map::Stats) { Ok(h) => h, Err(e) => { - println!("Error in CMAP (Stats) init: {}", e); + println!("Error in CMAP (Stats) init: {e}"); return; } }; let cb = cmap::NotifyCallback { notify_fn: Some(track_notify_fn), }; let _track_handle = match cmap::track_add( handle, "stats.srp.memb_merge_detect_tx", cmap::TrackType::MODIFY | cmap::TrackType::ADD | cmap::TrackType::DELETE, &cb, 997u64, ) { Ok(th) => th, Err(e) => { - println!("Error in CMAP track_add {}", e); + println!("Error in CMAP track_add {e}"); return; } }; // Wait for events let mut event_num = 0; loop { if let Err(e) = cmap::dispatch(handle, corosync::DispatchFlags::One) { - println!("Error from CMAP dispatch: {}", e); + println!("Error from CMAP dispatch: {e}"); } // Just do 5 event_num += 1; if event_num > 5 { break; } } } diff --git a/bindings/rust/tests/src/bin/cpg-test.rs b/bindings/rust/tests/src/bin/cpg-test.rs index f5f336c4..df83c2d5 100644 --- a/bindings/rust/tests/src/bin/cpg-test.rs +++ b/bindings/rust/tests/src/bin/cpg-test.rs @@ -1,146 +1,142 @@ // Test the CPG library. Requires that corosync is running and that we are root. extern crate rust_corosync as corosync; use corosync::{cpg, NodeId}; use std::str; fn deliver_fn( _handle: &cpg::Handle, group_name: String, nodeid: NodeId, pid: u32, msg: &[u8], msg_len: usize, ) { println!( - "TEST deliver_fn called for {}, from nodeid/pid {}/{}. len={}", - group_name, nodeid, pid, msg_len + "TEST deliver_fn called for {group_name}, from nodeid/pid {nodeid}/{pid}. len={msg_len}" ); // Print as text if it's valid UTF8 match str::from_utf8(msg) { - Ok(s) => println!(" {}", s), + Ok(s) => println!(" {s}"), Err(_) => { for i in msg { - print!("{:02x} ", i); + print!("{i:02x} "); } println!(); } } } fn confchg_fn( _handle: &cpg::Handle, group_name: &str, member_list: Vec, left_list: Vec, joined_list: Vec, ) { - println!("TEST confchg_fn called for {}", group_name); - println!(" members: {:?}", member_list); - println!(" left: {:?}", left_list); - println!(" joined: {:?}", joined_list); + println!("TEST confchg_fn called for {group_name}"); + println!(" members: {member_list:?}"); + println!(" left: {left_list:?}"); + println!(" joined: {joined_list:?}"); } fn totem_confchg_fn(_handle: &cpg::Handle, ring_id: cpg::RingId, member_list: Vec) { println!( "TEST totem_confchg_fn called for {}/{}", ring_id.nodeid, ring_id.seq ); - println!(" members: {:?}", member_list); + println!(" members: {member_list:?}"); } fn main() { // Initialise the model data let md = cpg::ModelData::ModelV1(cpg::Model1Data { flags: cpg::Model1Flags::None, deliver_fn: Some(deliver_fn), confchg_fn: Some(confchg_fn), totem_confchg_fn: Some(totem_confchg_fn), }); let handle = match cpg::initialize(&md, 99_u64) { Ok(h) => h, Err(e) => { - println!("Error in CPG init: {}", e); + println!("Error in CPG init: {e}"); return; } }; if let Err(e) = cpg::join(handle, "TEST") { - println!("Error in CPG join: {}", e); + println!("Error in CPG join: {e}"); return; } match cpg::local_get(handle) { Ok(n) => { - println!("Local nodeid is {}", n); + println!("Local nodeid is {n}"); } Err(e) => { - println!("Error in CPG local_get: {}", e); + println!("Error in CPG local_get: {e}"); } } // Test membership_get() match cpg::membership_get(handle, "TEST") { Ok(m) => { - println!(" members: {:?}", m); + println!(" members: {m:?}"); println!(); } Err(e) => { - println!("Error in CPG membership_get: {}", e); + println!("Error in CPG membership_get: {e}"); } } // Test context APIs let set_context: u64 = 0xabcdbeefcafe; if let Err(e) = cpg::context_set(handle, set_context) { - println!("Error in CPG context_set: {}", e); + println!("Error in CPG context_set: {e}"); return; } // NOTE This will fail on 32 bit systems because void* is not u64 match cpg::context_get(handle) { Ok(c) => { if c != set_context { - println!( - "Error: context_get() returned {:x}, context should be {:x}", - c, set_context - ); + println!("Error: context_get() returned {c:x}, context should be {set_context:x}"); } } Err(e) => { - println!("Error in CPG context_get: {}", e); + println!("Error in CPG context_get: {e}"); } } // Test iterator match cpg::CpgIterStart::new(handle, "", cpg::CpgIterType::All) { Ok(cpg_iter) => { for i in cpg_iter { - println!("ITER: {:?}", i); + println!("ITER: {i:?}"); } println!(); } Err(e) => { - println!("Error in CPG iter start: {}", e); + println!("Error in CPG iter start: {e}"); } } // We should receive our own message (at least) in the event loop if let Err(e) = cpg::mcast_joined( handle, cpg::Guarantee::TypeAgreed, &"This is a test".to_string().into_bytes(), ) { - println!("Error in CPG mcast_joined: {}", e); + println!("Error in CPG mcast_joined: {e}"); } // Wait for events loop { if cpg::dispatch(handle, corosync::DispatchFlags::One).is_err() { break; } } println!("ERROR: Corosync quit"); } diff --git a/bindings/rust/tests/src/bin/quorum-test.rs b/bindings/rust/tests/src/bin/quorum-test.rs index c65bfba8..5797b7d0 100644 --- a/bindings/rust/tests/src/bin/quorum-test.rs +++ b/bindings/rust/tests/src/bin/quorum-test.rs @@ -1,86 +1,83 @@ // Test the QUORUM library. Requires that corosync is running and that we are root. extern crate rust_corosync as corosync; use corosync::{quorum, NodeId}; fn quorum_fn( _handle: &quorum::Handle, quorate: bool, ring_id: quorum::RingId, member_list: Vec, ) { - println!("TEST quorum_fn called. quorate = {}", quorate); + println!("TEST quorum_fn called. quorate = {quorate}"); println!(" ring_id: {}/{}", ring_id.nodeid, ring_id.seq); - println!(" members: {:?}", member_list); + println!(" members: {member_list:?}"); } fn nodelist_fn( _handle: &quorum::Handle, ring_id: quorum::RingId, member_list: Vec, joined_list: Vec, left_list: Vec, ) { println!( "TEST nodelist_fn called for {}/{}", ring_id.nodeid, ring_id.seq ); - println!(" members: {:?}", member_list); - println!(" joined: {:?}", joined_list); - println!(" left: {:?}", left_list); + println!(" members: {member_list:?}"); + println!(" joined: {joined_list:?}"); + println!(" left: {left_list:?}"); } fn main() { // Initialise the model data let md = quorum::ModelData::ModelV1(quorum::Model1Data { flags: quorum::Model1Flags::None, quorum_notification_fn: Some(quorum_fn), nodelist_notification_fn: Some(nodelist_fn), }); let handle = match quorum::initialize(&md, 99_u64) { Ok((h, t)) => { println!("Quorum initialized; type = {}", t as u32); h } Err(e) => { - println!("Error in QUORUM init: {}", e); + println!("Error in QUORUM init: {e}"); return; } }; // Test context APIs let set_context: u64 = 0xabcdbeefcafe; if let Err(e) = quorum::context_set(handle, set_context) { - println!("Error in QUORUM context_set: {}", e); + println!("Error in QUORUM context_set: {e}"); return; } // NOTE This will fail on 32 bit systems because void* is not u64 match quorum::context_get(handle) { Ok(c) => { if c != set_context { - println!( - "Error: context_get() returned {:x}, context should be {:x}", - c, set_context - ); + println!("Error: context_get() returned {c:x}, context should be {set_context:x}"); } } Err(e) => { - println!("Error in QUORUM context_get: {}", e); + println!("Error in QUORUM context_get: {e}"); } } if let Err(e) = quorum::trackstart(handle, corosync::TrackFlags::Changes) { - println!("Error in QUORUM trackstart: {}", e); + println!("Error in QUORUM trackstart: {e}"); return; } // Wait for events loop { if quorum::dispatch(handle, corosync::DispatchFlags::One).is_err() { break; } } println!("ERROR: Corosync quit"); } diff --git a/bindings/rust/tests/src/bin/votequorum-test.rs b/bindings/rust/tests/src/bin/votequorum-test.rs index 59c50b2e..cf9746b6 100644 --- a/bindings/rust/tests/src/bin/votequorum-test.rs +++ b/bindings/rust/tests/src/bin/votequorum-test.rs @@ -1,123 +1,117 @@ // Test the VOTEQUORUM library. Requires that corosync is running and that we are root. extern crate rust_corosync as corosync; use corosync::votequorum; fn quorum_fn( _handle: &votequorum::Handle, _context: u64, quorate: bool, member_list: Vec, ) { - println!("TEST votequorum_quorum_fn called. quorate = {}", quorate); - println!(" members: {:?}", member_list); + println!("TEST votequorum_quorum_fn called. quorate = {quorate}"); + println!(" members: {member_list:?}"); } fn nodelist_fn( _handle: &votequorum::Handle, _context: u64, ring_id: votequorum::RingId, member_list: Vec, ) { println!( "TEST nodelist_fn called for {}/{}", ring_id.nodeid, ring_id.seq ); - println!(" members: {:?}", member_list); + println!(" members: {member_list:?}"); } fn expectedvotes_fn(_handle: &votequorum::Handle, _context: u64, expected_votes: u32) { - println!("TEST expected_votes_fn called: value is {}", expected_votes); + println!("TEST expected_votes_fn called: value is {expected_votes}"); } fn main() { // Initialise the model data let cb = votequorum::Callbacks { quorum_notification_fn: Some(quorum_fn), nodelist_notification_fn: Some(nodelist_fn), expectedvotes_notification_fn: Some(expectedvotes_fn), }; let handle = match votequorum::initialize(&cb) { Ok(h) => { println!("Votequorum initialized."); h } Err(e) => { - println!("Error in VOTEQUORUM init: {}", e); + println!("Error in VOTEQUORUM init: {e}"); return; } }; // Test context APIs let set_context: u64 = 0xabcdbeefcafe; if let Err(e) = votequorum::context_set(handle, set_context) { - println!("Error in VOTEQUORUM context_set: {}", e); + println!("Error in VOTEQUORUM context_set: {e}"); } // NOTE This will fail on 32 bit systems because void* is not u64 match votequorum::context_get(handle) { Ok(c) => { if c != set_context { - println!( - "Error: context_get() returned {:x}, context should be {:x}", - c, set_context - ); + println!("Error: context_get() returned {c:x}, context should be {set_context:x}"); } } Err(e) => { - println!("Error in VOTEQUORUM context_get: {}", e); + println!("Error in VOTEQUORUM context_get: {e}"); } } const QDEVICE_NAME: &str = "RustQdevice"; if let Err(e) = votequorum::qdevice_register(handle, QDEVICE_NAME) { - println!("Error in VOTEQUORUM qdevice_register: {}", e); + println!("Error in VOTEQUORUM qdevice_register: {e}"); } match votequorum::get_info(handle, corosync::NodeId::from(1u32)) { Ok(i) => { println!("Node info for nodeid 1"); println!(" nodeid: {}", i.node_id); println!(" node_state: {:?}", i.node_state); println!(" node_votes: {}", i.node_votes); println!(" node_expected: {}", i.node_expected_votes); println!(" highest_expected: {}", i.highest_expected); println!(" quorum: {}", i.quorum); println!(" flags: {:x}", i.flags); println!(" qdevice_votes: {}", i.qdevice_votes); println!(" qdevice_name: {}", i.qdevice_name); if i.qdevice_name != QDEVICE_NAME { println!( "qdevice names do not match: s/b: \"{}\" is: \"{}\"", QDEVICE_NAME, i.qdevice_name ); } } Err(e) => { - println!( - "Error in VOTEQUORUM get_info: {} (check nodeid 1 has been online)", - e - ); + println!("Error in VOTEQUORUM get_info: {e} (check nodeid 1 has been online)"); } } if let Err(e) = votequorum::qdevice_unregister(handle, QDEVICE_NAME) { - println!("Error in VOTEQUORUM qdevice_unregister: {}", e); + println!("Error in VOTEQUORUM qdevice_unregister: {e}"); } if let Err(e) = votequorum::trackstart(handle, 99_u64, corosync::TrackFlags::Changes) { - println!("Error in VOTEQUORUM trackstart: {}", e); + println!("Error in VOTEQUORUM trackstart: {e}"); return; } // Wait for events loop { if votequorum::dispatch(handle, corosync::DispatchFlags::One).is_err() { break; } } println!("ERROR: Corosync quit"); }