feat: add aio for solarish

(backport <rust-lang#4033>)
(cherry picked from commit ccc0b07)

Author: Berrysoft

libc-test/build.rs

@@ -847,6 +847,7 @@ fn test_solarish(target: &str) {
 
     headers! {
         cfg:
+        "aio.h",
         "ctype.h",
         "dirent.h",
         "dlfcn.h",
@@ -1009,6 +1010,11 @@ fn test_solarish(target: &str) {
         }
     });
 
+    cfg.skip_field_type(move |struct_, field| {
+        // aio_buf is "volatile void*"
+        struct_ == "aiocb" && field == "aio_buf"
+    });
+
     cfg.skip_field(move |s, field| {
         match s {
             // C99 sizing on this is tough
@@ -1087,6 +1093,12 @@ fn test_solarish(target: &str) {
             // excluded from the tests.
             "getifaddrs" if is_illumos => true,
 
+            // FIXME: Our API is unsound. The Rust API allows aliasing
+            // pointers, but the C API requires pointers not to alias.
+            // We should probably be at least using `&`/`&mut` here, see:
+            // https://github.com/gnzlbg/ctest/issues/68
+            "lio_listio" => true,
+
             _ => false,
         }
     });

libc-test/semver/solarish.txt

@@ -1,3 +1,6 @@
+AIO_ALLDONE
+AIO_CANCELED
+AIO_NOTCANCELED
 IPV6_DONTFRAG
 IPV6_PKTINFO
 IPV6_RECVTCLASS
@@ -6,9 +9,26 @@ IP_DONTFRAG
 IP_PKTINFO
 IP_TOS
 IP_TTL
+LIO_NOP
+LIO_NOWAIT
+LIO_READ
+LIO_WAIT
+LIO_WRITE
 PIPE_BUF
+SIGEV_PORT
+aio_cancel
+aio_error
+aio_fsync
+aio_read
+aio_result_t
+aio_return
+aio_suspend
+aio_waitn
+aio_write
+aiocb
 bind
 in6_pktinfo
 in_pktinfo
+lio_listio
 recvmsg
 sendmsg

src/unix/solarish/illumos.rs

@@ -10,6 +10,19 @@ pub type lgrp_rsrc_t = ::c_int;
 pub type lgrp_affinity_t = ::c_int;
 
 s! {
+    pub struct aiocb {
+        pub aio_fildes: ::c_int,
+        pub aio_buf: *mut ::c_void,
+        pub aio_nbytes: ::size_t,
+        pub aio_offset: ::off_t,
+        pub aio_reqprio: ::c_int,
+        pub aio_sigevent: ::sigevent,
+        pub aio_lio_opcode: ::c_int,
+        pub aio_resultp: ::aio_result_t,
+        pub aio_state: ::c_int,
+        pub aio__pad: [::c_int; 1],
+    }
+
     pub struct shmid_ds {
         pub shm_perm: ::ipc_perm,
         pub shm_segsz: ::size_t,

src/unix/solarish/mod.rs

@@ -420,6 +420,11 @@ s! {
         pub portnfy_user: *mut ::c_void,
     }
 
+    pub struct aio_result_t {
+        pub aio_return: ::ssize_t,
+        pub aio_errno: ::c_int,
+    }
+
     pub struct exit_status {
         e_termination: ::c_short,
         e_exit: ::c_short,
@@ -1133,9 +1138,19 @@ pub const SIG_BLOCK: ::c_int = 1;
 pub const SIG_UNBLOCK: ::c_int = 2;
 pub const SIG_SETMASK: ::c_int = 3;
 
+pub const AIO_CANCELED: ::c_int = 0;
+pub const AIO_ALLDONE: ::c_int = 1;
+pub const AIO_NOTCANCELED: ::c_int = 2;
+pub const LIO_NOP: ::c_int = 0;
+pub const LIO_READ: ::c_int = 1;
+pub const LIO_WRITE: ::c_int = 2;
+pub const LIO_NOWAIT: ::c_int = 0;
+pub const LIO_WAIT: ::c_int = 1;
+
 pub const SIGEV_NONE: ::c_int = 1;
 pub const SIGEV_SIGNAL: ::c_int = 2;
 pub const SIGEV_THREAD: ::c_int = 3;
+pub const SIGEV_PORT: ::c_int = 4;
 
 pub const CLD_EXITED: ::c_int = 1;
 pub const CLD_KILLED: ::c_int = 2;
@@ -3045,6 +3060,30 @@ extern "C" {
 
     pub fn sync();
 
+    pub fn aio_cancel(fd: ::c_int, aiocbp: *mut aiocb) -> ::c_int;
+    pub fn aio_error(aiocbp: *const aiocb) -> ::c_int;
+    pub fn aio_fsync(op: ::c_int, aiocbp: *mut aiocb) -> ::c_int;
+    pub fn aio_read(aiocbp: *mut aiocb) -> ::c_int;
+    pub fn aio_return(aiocbp: *mut aiocb) -> ::ssize_t;
+    pub fn aio_suspend(
+        aiocb_list: *const *const aiocb,
+        nitems: ::c_int,
+        timeout: *const ::timespec,
+    ) -> ::c_int;
+    pub fn aio_waitn(
+        aiocb_list: *mut *mut aiocb,
+        nent: ::c_uint,
+        nwait: *mut ::c_uint,
+        timeout: *const ::timespec,
+    ) -> ::c_int;
+    pub fn aio_write(aiocbp: *mut aiocb) -> ::c_int;
+    pub fn lio_listio(
+        mode: ::c_int,
+        aiocb_list: *const *mut aiocb,
+        nitems: ::c_int,
+        sevp: *mut sigevent,
+    ) -> ::c_int;
+
     pub fn __major(version: ::c_int, devnum: ::dev_t) -> ::major_t;
     pub fn __minor(version: ::c_int, devnum: ::dev_t) -> ::minor_t;
     pub fn __makedev(version: ::c_int, majdev: ::major_t, mindev: ::minor_t) -> ::dev_t;

src/unix/solarish/solaris.rs

@@ -20,6 +20,21 @@ e! {
 }
 
 s! {
+    pub struct aiocb {
+        pub aio_fildes: ::c_int,
+        pub aio_buf: *mut ::c_void,
+        pub aio_nbytes: ::size_t,
+        pub aio_offset: ::off_t,
+        pub aio_reqprio: ::c_int,
+        pub aio_sigevent: ::sigevent,
+        pub aio_lio_opcode: ::c_int,
+        pub aio_resultp: ::aio_result_t,
+        pub aio_state: ::c_char,
+        pub aio_returned: ::c_char,
+        pub aio__pad1: [::c_char; 2],
+        pub aio_flags: ::c_int,
+    }
+
     pub struct shmid_ds {
         pub shm_perm: ::ipc_perm,
         pub shm_segsz: ::size_t,