Reorganize the codebase

services/libs/jinux-std/src/process/signal/sig_num.rs

@@ -0,0 +1,77 @@
+use super::constants::*;
+use crate::prelude::*;
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub struct SigNum {
+    sig_num: u8,
+}
+
+impl TryFrom<u8> for SigNum {
+    type Error = Error;
+
+    fn try_from(sig_num: u8) -> Result<Self> {
+        if sig_num > MAX_RT_SIG_NUM || sig_num < MIN_STD_SIG_NUM {
+            return_errno_with_message!(Errno::EINVAL, "invalid signal number");
+        }
+        Ok(SigNum { sig_num })
+    }
+}
+
+impl SigNum {
+    /// Caller must ensure the sig_num is valid. otherweise, use try_from will check sig_num and does not panic.
+    pub const fn from_u8(sig_num: u8) -> Self {
+        if sig_num > MAX_RT_SIG_NUM || sig_num < MIN_STD_SIG_NUM {
+            panic!("invalid signal number")
+        }
+        SigNum { sig_num }
+    }
+
+    pub const fn as_u8(&self) -> u8 {
+        self.sig_num
+    }
+
+    pub fn is_std(&self) -> bool {
+        self.sig_num <= MAX_STD_SIG_NUM
+    }
+
+    pub fn is_real_time(&self) -> bool {
+        self.sig_num >= MIN_RT_SIG_NUM
+    }
+
+    pub const fn sig_name(&self) -> &'static str {
+        match *self {
+            SIGHUP => "SIGHUP",
+            SIGINT => "SIGINT",
+            SIGQUIT => "SIGQUIT",
+            SIGILL => "SIGILL",
+            SIGTRAP => "SIGTRAP",
+            SIGABRT => "SIGABRT",
+            SIGBUS => "SIGBUS",
+            SIGFPE => "SIGFPE",
+            SIGKILL => "SIGKILL",
+            SIGUSR1 => "SIGUSR1",
+            SIGSEGV => "SIGSEGV",
+            SIGUSR2 => "SIGUSR2",
+            SIGPIPE => "SIGPIPE",
+            SIGALRM => "SIGALRM",
+            SIGTERM => "SIGTERM",
+            SIGSTKFLT => "SIGSTKFLT",
+            SIGCHLD => "SIGCHLD",
+            SIGCONT => "SIGCONT",
+            SIGSTOP => "SIGSTOP",
+            SIGTSTP => "SIGTSTP",
+            SIGTTIN => "SIGTTIN",
+            SIGTTOU => "SIGTTOU",
+            SIGURG => "SIGURG",
+            SIGXCPU => "SIGXCPU",
+            SIGXFSZ => "SIGXFSZ",
+            SIGVTALRM => "SIGVTALRM",
+            SIGPROF => "SIGPROF",
+            SIGWINCH => "SIGWINCH",
+            SIGIO => "SIGIO",
+            SIGPWR => "SIGPWR",
+            SIGSYS => "SIGSYS",
+            _ => "Realtime Signal",
+        }
+    }
+}