Merge branch 'master' into master

src/lib.rs

@@ -20,6 +20,7 @@ extern crate string;
 extern crate sys_time;
 extern crate time;
 extern crate unistd;
+extern crate wait;
 extern crate wctype;
 
 #[lang = "eh_personality"]

src/platform/src/linux/mod.rs

@@ -163,6 +163,10 @@ pub fn unlink(path: *const c_char) -> c_int {
     e(unsafe { syscall!(UNLINKAT, AT_FDCWD, path, 0) }) as c_int
 }
 
+pub fn waitpid(pid: pid_t, stat_loc: *mut c_int, options: c_int) -> pid_t {
+    e(unsafe { syscall!(WAIT4, pid, stat_loc, options, 0) }) as pid_t
+}
+
 pub fn write(fildes: c_int, buf: &[u8]) -> ssize_t {
     e(unsafe { syscall!(WRITE, fildes, buf.as_ptr(), buf.len()) }) as ssize_t
 }

src/platform/src/redox/mod.rs

@@ -206,6 +206,17 @@ pub fn unlink(path: *const c_char) -> c_int {
     e(syscall::unlink(path)) as c_int
 }
 
+pub fn waitpid(pid: pid_t, stat_loc: *mut c_int, options: c_int) -> pid_t {
+    unsafe {
+        let mut temp: usize = 0;
+        let res = e(syscall::waitpid(pid as usize, &mut temp, options as usize));
+        if !stat_loc.is_null() {
+            *stat_loc = temp as c_int;
+        }
+        res
+    }
+}
+
 pub fn write(fd: c_int, buf: &[u8]) -> ssize_t {
     e(syscall::write(fd as usize, buf)) as ssize_t
 }

src/resource/cbindgen.toml

@@ -1,7 +1,7 @@
-sys_includes = ["sys/types.h", "sys/time.h"]
+sys_includes = ["sys/types.h", "stdint.h", "sys/time.h"]
 include_guard = "_SYS_RESOURCE_H"
 language = "C"
-style = "Tag"
+style = "Both"
 
 [enum]
 prefix_with_name = true

src/wait/src/lib.rs

@@ -11,7 +11,7 @@ use resource::rusage;
 
 #[no_mangle]
 pub unsafe extern "C" fn wait(stat_loc: *mut c_int) -> pid_t {
-    unimplemented!();
+    waitpid(!0, stat_loc, 0)
 }
 
 #[no_mangle]
@@ -39,5 +39,5 @@ pub unsafe extern "C" fn wait3(
 
 #[no_mangle]
 pub unsafe extern "C" fn waitpid(pid: pid_t, stat_loc: *mut c_int, options: c_int) -> pid_t {
-    unimplemented!();
+    platform::waitpid(pid, stat_loc, options)
 }

tests/.gitignore

@@ -37,5 +37,6 @@
 /string/strrchr
 /string/strspn
 /unlink
+/waitpid
 /write
 

tests/Makefile

@@ -35,6 +35,7 @@ EXPECT_BINS=\
 	string/strstr \
 	string/strpbrk \
 	unlink \
+	waitpid \
 	write
 
 # Binaries that may generate varied output

tests/waitpid.c

@@ -0,0 +1,17 @@
+#include <sys/wait.h>
+#include <unistd.h>
+#include <stdlib.h>
+
+int main(int argc, char** argv) {
+    pid_t pid = fork();
+    if (pid == 0) {
+        // child
+        sleep(1);
+        exit(0);
+    } else {
+        // parent
+        int stat_loc;
+        waitpid(pid, &stat_loc, 0);
+    }
+    return 0;
+}