112 lines
3.6 KiB
Rust
112 lines
3.6 KiB
Rust
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native "cdecl" mod libc = "" {
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fn read(fd: int, buf: *u8, count: uint) -> int;
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fn write(fd: int, buf: *u8, count: uint) -> int;
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fn fread(buf: *u8, size: uint, n: uint, f: libc::FILE) -> uint;
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fn fwrite(buf: *u8, size: uint, n: uint, f: libc::FILE) -> uint;
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fn open(s: str::sbuf, flags: int, mode: uint) -> int = "_open";
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fn close(fd: int) -> int = "_close";
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type FILE;
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fn fopen(path: str::sbuf, mode: str::sbuf) -> FILE;
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fn _fdopen(fd: int, mode: str::sbuf) -> FILE;
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fn fclose(f: FILE);
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fn fgetc(f: FILE) -> int;
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fn ungetc(c: int, f: FILE);
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fn feof(f: FILE) -> int;
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fn fseek(f: FILE, offset: int, whence: int) -> int;
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fn ftell(f: FILE) -> int;
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fn _pipe(fds: *mutable int, size: uint, mode: int) -> int;
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}
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mod libc_constants {
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fn O_RDONLY() -> int { ret 0; }
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fn O_WRONLY() -> int { ret 1; }
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fn O_RDWR() -> int { ret 2; }
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fn O_APPEND() -> int { ret 8; }
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fn O_CREAT() -> int { ret 256; }
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fn O_EXCL() -> int { ret 1024; }
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fn O_TRUNC() -> int { ret 512; }
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fn O_TEXT() -> int { ret 16384; }
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fn O_BINARY() -> int { ret 32768; }
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fn O_NOINHERIT() -> int { ret 128; }
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fn S_IRUSR() -> uint {
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ret 256u; // really _S_IREAD in win32
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}
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fn S_IWUSR() -> uint {
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ret 128u; // really _S_IWRITE in win32
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}
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}
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type DWORD = u32;
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type HMODULE = uint;
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type LPTSTR = str::sbuf;
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native "x86stdcall" mod kernel32 {
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fn GetEnvironmentVariableA(n: str::sbuf, v: str::sbuf, nsize: uint) ->
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uint;
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fn SetEnvironmentVariableA(n: str::sbuf, v: str::sbuf) -> int;
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fn GetModuleFileNameA(hModule: HMODULE,
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lpFilename: LPTSTR,
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nSize: DWORD) -> DWORD;
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}
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fn exec_suffix() -> str { ret ".exe"; }
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fn target_os() -> str { ret "win32"; }
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fn dylib_filename(base: str) -> str { ret base + ".dll"; }
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fn pipe() -> {in: int, out: int} {
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// Windows pipes work subtly differently than unix pipes, and their
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// inheritance has to be handled in a different way that I don't fully
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// understand. Here we explicitly make the pipe non-inheritable,
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// which means to pass it to a subprocess they need to be duplicated
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// first, as in rust_run_program.
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let fds = {mutable in: 0, mutable out: 0};
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let res =
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os::libc::_pipe(ptr::addr_of(fds.in), 1024u,
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libc_constants::O_BINARY() |
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libc_constants::O_NOINHERIT());
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assert (res == 0);
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assert (fds.in != -1 && fds.in != 0);
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assert (fds.out != -1 && fds.in != 0);
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ret {in: fds.in, out: fds.out};
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}
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fn fd_FILE(fd: int) -> libc::FILE {
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ret str::as_buf("r", {|modebuf| libc::_fdopen(fd, modebuf) });
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}
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native "rust" mod rustrt {
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fn rust_process_wait(handle: int) -> int;
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fn rust_getcwd() -> str;
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}
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fn waitpid(pid: int) -> int { ret rustrt::rust_process_wait(pid); }
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fn getcwd() -> str { ret rustrt::rust_getcwd(); }
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fn get_exe_path() -> option::t<fs::path> {
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// FIXME: This doesn't handle the case where the buffer is too small
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let bufsize = 1023u;
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let path = str::unsafe_from_bytes(vec::init_elt(0u8, bufsize));
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ret str::as_buf(path, { |path_buf|
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if kernel32::GetModuleFileNameA(0u, path_buf,
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bufsize as u32) != 0u32 {
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option::some(fs::dirname(path) + fs::path_sep())
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} else {
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option::none
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}
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});
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}
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// Local Variables:
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// mode: rust;
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// fill-column: 78;
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// indent-tabs-mode: nil
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// c-basic-offset: 4
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// buffer-file-coding-system: utf-8-unix
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// compile-command: "make -k -C $RBUILD 2>&1 | sed -e 's/\\/x\\//x:\\//g'";
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// End:
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