expose si_status for SIGCHLD

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "signal-hook"
-version = "0.3.17"
+version = "0.4.0"
 authors = [
     "Michal 'vorner' Vaner <[email protected]>",
     "Thomas Himmelstoss <[email protected]>",

signal-hook-async-std/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "signal-hook-async-std"
-version = "0.2.2"
+version = "0.2.3"
 authors = [
     "Michal 'vorner' Vaner <[email protected]>",
     "Thomas Himmelstoss <[email protected]>",
@@ -23,7 +23,7 @@ maintenance = { status = "actively-developed" }
 libc = "~0.2"
 async-io = "~1"
 futures-lite = "~1"
-signal-hook = { version = "~0.3", path = ".." }
+signal-hook = { version = "~0.4", path = ".." }
 
 [dev-dependencies]
 async-std = { version = "~1", features = ["attributes"] }

signal-hook-mio/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "signal-hook-mio"
-version = "0.2.4"
+version = "0.2.5"
 authors = [
     "Michal 'vorner' Vaner <[email protected]>",
     "Thomas Himmelstoss <[email protected]>",
@@ -27,7 +27,7 @@ support-v1_0 = ["mio-1_0"]
 
 [dependencies]
 libc = "~0.2"
-signal-hook = { version = "~0.3", path = ".." }
+signal-hook = { version = "~0.4", path = ".." }
 mio-1_0 = { package = "mio", version = "~1.0", features = ["net", "os-ext"], optional = true }
 mio-0_8 = { package = "mio", version = "~0.8", features = ["net", "os-ext"], optional = true }
 mio-0_7 = { package = "mio", version = "~0.7", features = ["os-util", "uds"], optional = true }

signal-hook-registry/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "signal-hook-registry"
-version = "1.4.2"
+version = "1.4.3"
 authors = [
     "Michal 'vorner' Vaner <[email protected]>",
     "Masaki Hara <[email protected]>",
@@ -21,4 +21,4 @@ maintenance = { status = "actively-developed" }
 libc = "~0.2"
 
 [dev-dependencies]
-signal-hook = { version = "~0.3", path = ".." }
+signal-hook = { version = "~0.4", path = ".." }

signal-hook-tokio/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "signal-hook-tokio"
-version = "0.3.1"
+version = "0.3.2"
 authors = [
     "Michal 'vorner' Vaner <[email protected]>",
     "Thomas Himmelstoss <[email protected]>",
@@ -24,7 +24,7 @@ futures-v0_3 = ["futures-core-0_3"]
 
 [dependencies]
 libc = "~0.2"
-signal-hook = { version = "~0.3", path = ".." }
+signal-hook = { version = "~0.4", path = ".." }
 futures-core-0_3 = { package = "futures-core", version = "~0.3", optional = true }
 tokio = { version = "~1", features = ["net"] }
 

src/low_level/extract.c

@@ -55,3 +55,8 @@ pid_t sighook_signal_pid(const siginfo_t *info) {
 uid_t sighook_signal_uid(const siginfo_t *info) {
     return info->si_uid;
 }
+
+c_int sighook_signal_status(const siginfo_t *info, bool *has_status) {
+    *has_status = info->si_signo == SIGCHLD;
+    return info->si_status;
+}

src/low_level/siginfo.rs

@@ -13,6 +13,7 @@ extern "C" {
     fn sighook_signal_cause(info: &siginfo_t) -> ICause;
     fn sighook_signal_pid(info: &siginfo_t) -> pid_t;
     fn sighook_signal_uid(info: &siginfo_t) -> uid_t;
+    fn sighook_signal_status(info: &siginfo_t, has_status: &mut bool) -> c_int;
 }
 
 // Warning: must be in sync with the C code
@@ -66,6 +67,9 @@ pub struct Process {
 
     /// The user owning the process.
     pub uid: uid_t,
+
+    /// The exit status of the process, or the signal number that caused it to change state.
+    pub status: Option<c_int>,
 }
 
 impl Process {
@@ -78,9 +82,12 @@ impl Process {
      * and `si_uid` filled in.
      */
     unsafe fn extract(info: &siginfo_t) -> Self {
+        let mut has_status = false;
+        let status = sighook_signal_status(info, &mut has_status);
         Self {
             pid: sighook_signal_pid(info),
             uid: sighook_signal_uid(info),
+            status: has_status.then_some(status),
         }
     }
 }