[pbs-devel] [PATCH proxmox-backup v2 03/16] move src/tools/daemon.rs to proxmox-rest-server workspace

[Dietmar Maurer <dietmar@proxmox.com>]

---
 proxmox-rest-server/Cargo.toml                |  1 +
 .../src}/daemon.rs                            | 13 ++++----
 proxmox-rest-server/src/lib.rs                | 31 ++++++++++++++++++-
 src/api2/node/mod.rs                          |  2 +-
 src/bin/proxmox-backup-api.rs                 |  3 +-
 src/bin/proxmox-backup-proxy.rs               |  3 +-
 src/tools/mod.rs                              | 27 ----------------
 7 files changed, 43 insertions(+), 37 deletions(-)
 rename {src/tools => proxmox-rest-server/src}/daemon.rs (97%)

diff --git a/proxmox-rest-server/Cargo.toml b/proxmox-rest-server/Cargo.toml
index 33ed6f39..4d1f1459 100644
--- a/proxmox-rest-server/Cargo.toml
+++ b/proxmox-rest-server/Cargo.toml
@@ -13,6 +13,7 @@ http = "0.2"
 hyper = { version = "0.14", features = [ "full" ] }
 lazy_static = "1.4"
 libc = "0.2"
+log = "0.4"
 nix = "0.19.1"
 serde = { version = "1.0", features = [] }
 serde_json = "1.0"
diff --git a/src/tools/daemon.rs b/proxmox-rest-server/src/daemon.rs
similarity index 97%
rename from src/tools/daemon.rs
rename to proxmox-rest-server/src/daemon.rs
index 1291601b..5401e30c 100644
--- a/src/tools/daemon.rs
+++ b/proxmox-rest-server/src/daemon.rs
@@ -15,8 +15,9 @@ use anyhow::{bail, format_err, Error};
 use futures::future::{self, Either};
 
 use proxmox::tools::io::{ReadExt, WriteExt};
+use proxmox::tools::fd::Fd;
 
-use crate::tools::{fd_change_cloexec, self};
+use crate::fd_change_cloexec;
 
 #[link(name = "systemd")]
 extern "C" {
@@ -218,7 +219,7 @@ impl Reloadable for tokio::net::TcpListener {
     // FIXME: We could become "independent" of the TcpListener and its reference to the file
     // descriptor by `dup()`ing it (and check if the listener still exists via kcmp()?)
     fn get_store_func(&self) -> Result<BoxedStoreFunc, Error> {
-        let mut fd_opt = Some(tools::Fd(
+        let mut fd_opt = Some(Fd(
             nix::fcntl::fcntl(self.as_raw_fd(), nix::fcntl::FcntlArg::F_DUPFD_CLOEXEC(0))?
         ));
         Ok(Box::new(move || {
@@ -273,11 +274,11 @@ where
     ).await?;
 
     let server_future = create_service(listener, NotifyReady)?;
-    let shutdown_future = proxmox_rest_server::shutdown_future();
+    let shutdown_future = crate::shutdown_future();
 
     let finish_future = match future::select(server_future, shutdown_future).await {
         Either::Left((_, _)) => {
-            proxmox_rest_server::request_shutdown(); // make sure we are in shutdown mode
+            crate::request_shutdown(); // make sure we are in shutdown mode
             None
         }
         Either::Right((_, server_future)) => Some(server_future),
@@ -285,7 +286,7 @@ where
 
     let mut reloader = Some(reloader);
 
-    if proxmox_rest_server::is_reload_request() {
+    if crate::is_reload_request() {
         log::info!("daemon reload...");
         if let Err(e) = systemd_notify(SystemdNotify::Reloading) {
             log::error!("failed to notify systemd about the state change: {}", e);
@@ -304,7 +305,7 @@ where
     }
 
     // FIXME: this is a hack, replace with sd_notify_barrier when available
-    if proxmox_rest_server::is_reload_request() {
+    if crate::is_reload_request() {
         wait_service_is_not_state(service_name, "reloading").await?;
     }
 
diff --git a/proxmox-rest-server/src/lib.rs b/proxmox-rest-server/src/lib.rs
index 38dd610c..21a91115 100644
--- a/proxmox-rest-server/src/lib.rs
+++ b/proxmox-rest-server/src/lib.rs
@@ -1,4 +1,10 @@
-use anyhow::{bail, Error};
+use std::os::unix::io::RawFd;
+
+use anyhow::{bail, format_err, Error};
+
+use proxmox::tools::fd::Fd;
+
+pub mod daemon;
 
 mod state;
 pub use state::*;
@@ -52,3 +58,26 @@ pub fn fail_on_shutdown() -> Result<(), Error> {
     Ok(())
 }
 
+/// Helper to set/clear the FD_CLOEXEC flag on file descriptors
+pub fn fd_change_cloexec(fd: RawFd, on: bool) -> Result<(), Error> {
+    use nix::fcntl::{fcntl, FdFlag, F_GETFD, F_SETFD};
+    let mut flags = FdFlag::from_bits(fcntl(fd, F_GETFD)?)
+        .ok_or_else(|| format_err!("unhandled file flags"))?; // nix crate is stupid this way...
+    flags.set(FdFlag::FD_CLOEXEC, on);
+    fcntl(fd, F_SETFD(flags))?;
+    Ok(())
+}
+
+/// safe wrapper for `nix::sys::socket::socketpair` defaulting to `O_CLOEXEC` and guarding the file
+/// descriptors.
+pub fn socketpair() -> Result<(Fd, Fd), Error> {
+    use nix::sys::socket;
+    let (pa, pb) = socket::socketpair(
+        socket::AddressFamily::Unix,
+        socket::SockType::Stream,
+        None,
+        socket::SockFlag::SOCK_CLOEXEC,
+    )?;
+    Ok((Fd(pa), Fd(pb)))
+}
+
diff --git a/src/api2/node/mod.rs b/src/api2/node/mod.rs
index ecc1e2e0..9b31d595 100644
--- a/src/api2/node/mod.rs
+++ b/src/api2/node/mod.rs
@@ -151,7 +151,7 @@ async fn termproxy(cmd: Option<String>, rpcenv: &mut dyn RpcEnvironment) -> Resu
         move |worker| async move {
             // move inside the worker so that it survives and does not close the port
             // remove CLOEXEC from listenere so that we can reuse it in termproxy
-            tools::fd_change_cloexec(listener.as_raw_fd(), false)?;
+            proxmox_rest_server::fd_change_cloexec(listener.as_raw_fd(), false)?;
 
             let mut arguments: Vec<&str> = Vec::new();
             let fd_string = listener.as_raw_fd().to_string();
diff --git a/src/bin/proxmox-backup-api.rs b/src/bin/proxmox-backup-api.rs
index 452bbc3a..17b6f184 100644
--- a/src/bin/proxmox-backup-api.rs
+++ b/src/bin/proxmox-backup-api.rs
@@ -13,7 +13,8 @@ use proxmox_backup::server::{
     auth::default_api_auth,
     rest::*,
 };
-use proxmox_backup::tools::daemon;
+use proxmox_rest_server::daemon;
+
 use proxmox_backup::auth_helpers::*;
 use proxmox_backup::config;
 
diff --git a/src/bin/proxmox-backup-proxy.rs b/src/bin/proxmox-backup-proxy.rs
index de534a65..d4ac2a85 100644
--- a/src/bin/proxmox-backup-proxy.rs
+++ b/src/bin/proxmox-backup-proxy.rs
@@ -39,11 +39,12 @@ use pbs_api_types::{
     PruneOptions,
 };
 
+use proxmox_rest_server::daemon;
+
 use proxmox_backup::server;
 use proxmox_backup::auth_helpers::*;
 use proxmox_backup::tools::{
     PROXMOX_BACKUP_TCP_KEEPALIVE_TIME,
-    daemon,
     disks::{
         DiskManage,
         zfs_pool_stats,
diff --git a/src/tools/mod.rs b/src/tools/mod.rs
index f8b363f5..8fd441b5 100644
--- a/src/tools/mod.rs
+++ b/src/tools/mod.rs
@@ -2,13 +2,10 @@
 //!
 //! This is a collection of small and useful tools.
 use std::any::Any;
-use std::os::unix::io::RawFd;
 
 use anyhow::{bail, format_err, Error};
 use openssl::hash::{hash, DigestBytes, MessageDigest};
 
-pub use proxmox::tools::fd::Fd;
-
 use proxmox_http::{
     client::SimpleHttp,
     client::SimpleHttpOptions,
@@ -19,7 +16,6 @@ pub mod apt;
 pub mod async_io;
 pub mod compression;
 pub mod config;
-pub mod daemon;
 pub mod disks;
 
 pub mod serde_filter;
@@ -111,29 +107,6 @@ pub fn normalize_uri_path(path: &str) -> Result<(String, Vec<&str>), Error> {
     Ok((path, components))
 }
 
-pub fn fd_change_cloexec(fd: RawFd, on: bool) -> Result<(), Error> {
-    use nix::fcntl::{fcntl, FdFlag, F_GETFD, F_SETFD};
-    let mut flags = FdFlag::from_bits(fcntl(fd, F_GETFD)?)
-        .ok_or_else(|| format_err!("unhandled file flags"))?; // nix crate is stupid this way...
-    flags.set(FdFlag::FD_CLOEXEC, on);
-    fcntl(fd, F_SETFD(flags))?;
-    Ok(())
-}
-
-/// safe wrapper for `nix::sys::socket::socketpair` defaulting to `O_CLOEXEC` and guarding the file
-/// descriptors.
-pub fn socketpair() -> Result<(Fd, Fd), Error> {
-    use nix::sys::socket;
-    let (pa, pb) = socket::socketpair(
-        socket::AddressFamily::Unix,
-        socket::SockType::Stream,
-        None,
-        socket::SockFlag::SOCK_CLOEXEC,
-    )?;
-    Ok((Fd(pa), Fd(pb)))
-}
-
-
 /// An easy way to convert types to Any
 ///
 /// Mostly useful to downcast trait objects (see RpcEnvironment).
-- 
2.30.2