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author | Glenn Griffin <ggriffiniii@gmail.com> | 2018-01-29 12:39:48 -0800 |
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committer | Glenn Griffin <ggriffiniii@gmail.com> | 2018-01-29 12:39:48 -0800 |
commit | 0384e8dc7a71031086f9065aceb9a6f5ef571af9 (patch) | |
tree | 976a3a420ecdabf7ddb3b837958402fa5bf7d145 /src | |
parent | 899eff72f92cbc300fbd7779957907a39aa0e42b (diff) | |
download | nix-0384e8dc7a71031086f9065aceb9a6f5ef571af9.zip |
Added `getsid` in `::nix::unistd`
Diffstat (limited to 'src')
-rw-r--r-- | src/unistd.rs | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/unistd.rs b/src/unistd.rs index 0f47a7fc..1c858c8c 100644 --- a/src/unistd.rs +++ b/src/unistd.rs @@ -264,6 +264,17 @@ pub fn setsid() -> Result<Pid> { Errno::result(unsafe { libc::setsid() }).map(Pid) } +/// Get the process group ID of a session leader +/// [getsid(2)](http://pubs.opengroup.org/onlinepubs/9699919799/functions/getsid.html). +/// +/// Obtain the process group ID of the process that is the session leader of the process specified +/// by pid. If pid is zero, it specifies the calling process. +#[inline] +pub fn getsid(pid: Option<Pid>) -> Result<Pid> { + let res = unsafe { libc::getsid(pid.unwrap_or(Pid(0)).into()) }; + Errno::result(res).map(Pid) +} + /// Get the terminal foreground process group (see /// [tcgetpgrp(3)](http://pubs.opengroup.org/onlinepubs/9699919799/functions/tcgetpgrp.html)). |