Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 105 insertions, 0 deletions

diff --git a/third_party/rust/procfs-core/src/sysvipc_shm.rs b/third_party/rust/procfs-core/src/sysvipc_shm.rs
new file mode 100644
index 0000000000..9b9081360d
--- /dev/null
+++ b/third_party/rust/procfs-core/src/sysvipc_shm.rs
@@ -0,0 +1,105 @@
+use std::io;
+
+use super::{expect, ProcResult};
+use std::str::FromStr;
+
+#[cfg(feature = "serde1")]
+use serde::{Deserialize, Serialize};
+
+/// A shared memory segment parsed from `/proc/sysvipc/shm`
+/// Relation with [crate::process::MMapPath::Vsys]
+#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
+#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]
+#[allow(non_snake_case)]
+pub struct Shm {
+    /// Segment key
+    pub key: i32,
+    /// Segment ID, unique
+    pub shmid: u64,
+    /// Access permissions, as octal
+    pub perms: u16,
+    /// Size in bytes
+    pub size: u64,
+    /// Creator PID
+    pub cpid: i32,
+    /// Last operator PID
+    pub lpid: i32,
+    /// Number of attached processes
+    pub nattch: u32,
+    /// User ID
+    pub uid: u16,
+    /// Group ID
+    pub gid: u16,
+    /// Creator UID
+    pub cuid: u16,
+    /// Creator GID
+    pub cgid: u16,
+    /// Time of last `shmat` (attach), epoch
+    pub atime: u64,
+    /// Time of last `shmdt` (detach), epoch
+    pub dtime: u64,
+    /// Time of last permission change, epoch
+    pub ctime: u64,
+    /// Current part of the shared memory resident in memory
+    pub rss: u64,
+    /// Current part of the shared memory in SWAP
+    pub swap: u64,
+}
+
+/// A set of shared memory segments parsed from `/proc/sysvipc/shm`
+#[derive(Debug, Clone)]
+#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]
+pub struct SharedMemorySegments(pub Vec<Shm>);
+
+impl super::FromBufRead for SharedMemorySegments {
+    fn from_buf_read<R: io::BufRead>(r: R) -> ProcResult<Self> {
+        let mut vec = Vec::new();
+
+        // See printing code here:
+        // https://elixir.bootlin.com/linux/latest/source/ipc/shm.c#L1737
+        for line in r.lines().skip(1) {
+            let line = expect!(line);
+            let mut s = line.split_whitespace();
+
+            let key = expect!(i32::from_str(expect!(s.next())));
+            let shmid = expect!(u64::from_str(expect!(s.next())));
+            let perms = expect!(u16::from_str(expect!(s.next())));
+            let size = expect!(u64::from_str(expect!(s.next())));
+            let cpid = expect!(i32::from_str(expect!(s.next())));
+            let lpid = expect!(i32::from_str(expect!(s.next())));
+            let nattch = expect!(u32::from_str(expect!(s.next())));
+            let uid = expect!(u16::from_str(expect!(s.next())));
+            let gid = expect!(u16::from_str(expect!(s.next())));
+            let cuid = expect!(u16::from_str(expect!(s.next())));
+            let cgid = expect!(u16::from_str(expect!(s.next())));
+            let atime = expect!(u64::from_str(expect!(s.next())));
+            let dtime = expect!(u64::from_str(expect!(s.next())));
+            let ctime = expect!(u64::from_str(expect!(s.next())));
+            let rss = expect!(u64::from_str(expect!(s.next())));
+            let swap = expect!(u64::from_str(expect!(s.next())));
+
+            let shm = Shm {
+                key,
+                shmid,
+                perms,
+                size,
+                cpid,
+                lpid,
+                nattch,
+                uid,
+                gid,
+                cuid,
+                cgid,
+                atime,
+                dtime,
+                ctime,
+                rss,
+                swap,
+            };
+
+            vec.push(shm);
+        }
+
+        Ok(SharedMemorySegments(vec))
+    }
+}