Add sem_getvalue to unix

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;

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;

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;

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;

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;

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,

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,