Auto merge of #985 - longshorej:sem_getvalue, r=alexcrichton

Add sem_getvalue to unix

Adds `sem_getvalue` for supported platforms.

Reference: https://www.gnu.org/software/libc/manual/html_node/Semaphores.html

8 files changed, 18 insertions, 0 deletions

diff --git a/.travis.yml b/.travis.yml
index dc2cdab903..8bc91ae3a5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -21,6 +21,10 @@ env:
   global:
     secure: "e2/3QjgRN9atOuSHp22TrYG7QVKcYUWY48Hi9b60w+r1+BhPkTseIJLte7WefRhdXtqpjjUJTooKDhnurFOeHaCT+nmBgiv+FPU893sBl4bhesY4m0vgUJVbNZcs6lTImYekWVb+aqjGdgV/XAgCw7c3kPmrZV0MzGDWL64Xaps="
 matrix:
+  allow_failures:
+    # FIXME(#987) move back to include once 404 is fixed
+    - env: TARGET=s390x-unknown-linux-gnu
+    - env: TARGET=sparc64-unknown-linux-gnu
   include:
     # 1.13.0 compat
     - env: TARGET=x86_64-unknown-linux-gnu NO_ADD=1
diff --git a/src/fuchsia/mod.rs b/src/fuchsia/mod.rs
index 929acaf8dc..0aac98531a 100644
--- a/src/fuchsia/mod.rs
+++ b/src/fuchsia/mod.rs
@@ -3796,6 +3796,8 @@ extern {
     pub fn sched_rr_get_interval(pid: ::pid_t, tp: *mut ::timespec) -> ::c_int;
     pub fn sem_timedwait(sem: *mut sem_t,
                          abstime: *const ::timespec) -> ::c_int;
+    pub fn sem_getvalue(sem: *mut sem_t,
+                        sval: *mut ::c_int) -> ::c_int;
     pub fn sched_setparam(pid: ::pid_t, param: *const ::sched_param) -> ::c_int;
     pub fn setns(fd: ::c_int, nstype: ::c_int) -> ::c_int;
     pub fn swapoff(puath: *const ::c_char) -> ::c_int;
diff --git a/src/unix/bsd/freebsdlike/mod.rs b/src/unix/bsd/freebsdlike/mod.rs
index 936da8c5e6..cf3e41b5f4 100644
--- a/src/unix/bsd/freebsdlike/mod.rs
+++ b/src/unix/bsd/freebsdlike/mod.rs
@@ -1184,6 +1184,8 @@ extern {
     pub fn sethostname(name: *const ::c_char, len: ::c_int) -> ::c_int;
     pub fn sem_timedwait(sem: *mut sem_t,
                          abstime: *const ::timespec) -> ::c_int;
+    pub fn sem_getvalue(sem: *mut sem_t,
+                        sval: *mut ::c_int) -> ::c_int;
     pub fn pthread_mutex_timedlock(lock: *mut pthread_mutex_t,
                                    abstime: *const ::timespec) -> ::c_int;
     pub fn pipe2(fds: *mut ::c_int, flags: ::c_int) -> ::c_int;
diff --git a/src/unix/bsd/netbsdlike/mod.rs b/src/unix/bsd/netbsdlike/mod.rs
index 8b0b505aac..a7c6f960e7 100644
--- a/src/unix/bsd/netbsdlike/mod.rs
+++ b/src/unix/bsd/netbsdlike/mod.rs
@@ -639,6 +639,8 @@ extern {
                     mode: ::mode_t) -> ::c_int;
     pub fn sem_timedwait(sem: *mut sem_t,
                          abstime: *const ::timespec) -> ::c_int;
+    pub fn sem_getvalue(sem: *mut sem_t,
+                        sval: *mut ::c_int) -> ::c_int;
     pub fn pthread_condattr_setclock(attr: *mut pthread_condattr_t,
                                      clock_id: ::clockid_t) -> ::c_int;
     pub fn sethostname(name: *const ::c_char, len: ::size_t) -> ::c_int;
diff --git a/src/unix/notbsd/android/mod.rs b/src/unix/notbsd/android/mod.rs
index b7a184c9d0..f42932489e 100644
--- a/src/unix/notbsd/android/mod.rs
+++ b/src/unix/notbsd/android/mod.rs
@@ -1500,6 +1500,8 @@ extern {
     pub fn sched_rr_get_interval(pid: ::pid_t, tp: *mut ::timespec) -> ::c_int;
     pub fn sem_timedwait(sem: *mut sem_t,
                          abstime: *const ::timespec) -> ::c_int;
+    pub fn sem_getvalue(sem: *mut sem_t,
+                        sval: *mut ::c_int) -> ::c_int;
     pub fn sched_setparam(pid: ::pid_t, param: *const ::sched_param) -> ::c_int;
     pub fn setns(fd: ::c_int, nstype: ::c_int) -> ::c_int;
     pub fn swapoff(puath: *const ::c_char) -> ::c_int;
diff --git a/src/unix/notbsd/linux/mod.rs b/src/unix/notbsd/linux/mod.rs
index 87b48456fd..7988072941 100644
--- a/src/unix/notbsd/linux/mod.rs
+++ b/src/unix/notbsd/linux/mod.rs
@@ -1721,6 +1721,8 @@ extern {
     pub fn sched_rr_get_interval(pid: ::pid_t, tp: *mut ::timespec) -> ::c_int;
     pub fn sem_timedwait(sem: *mut sem_t,
                          abstime: *const ::timespec) -> ::c_int;
+    pub fn sem_getvalue(sem: *mut sem_t,
+                        sval: *mut ::c_int) -> ::c_int;
     pub fn sched_setparam(pid: ::pid_t, param: *const ::sched_param) -> ::c_int;
     pub fn setns(fd: ::c_int, nstype: ::c_int) -> ::c_int;
     pub fn swapoff(puath: *const ::c_char) -> ::c_int;
diff --git a/src/unix/solaris/mod.rs b/src/unix/solaris/mod.rs
index 5f8abded99..aecc611777 100644
--- a/src/unix/solaris/mod.rs
+++ b/src/unix/solaris/mod.rs
@@ -1316,6 +1316,8 @@ extern {
                                      clock_id: ::clockid_t) -> ::c_int;
     pub fn sem_timedwait(sem: *mut sem_t,
                          abstime: *const ::timespec) -> ::c_int;
+    pub fn sem_getvalue(sem: *mut sem_t,
+                        sval: *mut ::c_int) -> ::c_int;
     pub fn pthread_mutex_timedlock(lock: *mut pthread_mutex_t,
                                    abstime: *const ::timespec) -> ::c_int;
     pub fn waitid(idtype: idtype_t, id: id_t, infop: *mut ::siginfo_t,
diff --git a/src/unix/uclibc/mod.rs b/src/unix/uclibc/mod.rs
index a7963b3796..49f7792d0a 100644
--- a/src/unix/uclibc/mod.rs
+++ b/src/unix/uclibc/mod.rs
@@ -1637,6 +1637,8 @@ extern {
     pub fn unshare(flags: ::c_int) -> ::c_int;
     pub fn sem_timedwait(sem: *mut sem_t,
                          abstime: *const ::timespec) -> ::c_int;
+    pub fn sem_getvalue(sem: *mut sem_t,
+                        sval: *mut ::c_int) -> ::c_int;
     pub fn accept4(fd: ::c_int, addr: *mut ::sockaddr, len: *mut ::socklen_t,
                    flg: ::c_int) -> ::c_int;
     pub fn pthread_mutex_timedlock(lock: *mut pthread_mutex_t,