118 lines
3.3 KiB
Rust
118 lines
3.3 KiB
Rust
/*
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Module: os
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TODO: Restructure and document
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*/
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// FIXME Somehow merge stuff duplicated here and macosx_os.rs. Made difficult
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// by https://github.com/graydon/rust/issues#issue/268
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native "c-stack-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;
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fn close(fd: int) -> int;
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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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type dir;
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fn opendir(d: str::sbuf) -> dir;
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fn closedir(d: dir) -> int;
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type dirent;
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fn readdir(d: dir) -> dirent;
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fn getenv(n: str::sbuf) -> str::sbuf;
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fn setenv(n: str::sbuf, v: str::sbuf, overwrite: int) -> int;
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fn unsetenv(n: str::sbuf) -> int;
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fn pipe(buf: *mutable int) -> int;
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fn waitpid(pid: int, &status: int, options: int) -> int;
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fn readlink(path: str::sbuf, buf: str::sbuf,
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bufsize: ctypes::size_t) -> ctypes::ssize_t;
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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 1024; }
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fn O_CREAT() -> int { ret 64; }
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fn O_EXCL() -> int { ret 128; }
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fn O_TRUNC() -> int { ret 512; }
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fn O_TEXT() -> int {
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ret 0; // nonexistent in linux libc
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}
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fn O_BINARY() -> int {
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ret 0; // nonexistent in linux libc
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}
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fn S_IRUSR() -> uint { ret 256u; }
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fn S_IWUSR() -> uint { ret 128u; }
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}
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fn exec_suffix() -> str { ret ""; }
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fn target_os() -> str { ret "linux"; }
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fn dylib_filename(base: str) -> str { ret "lib" + base + ".so"; }
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fn pipe() -> {in: int, out: int} {
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let fds = {mutable in: 0, mutable out: 0};
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assert (os::libc::pipe(ptr::mut_addr_of(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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fn close(fd: int) -> int {
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libc::close(fd)
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}
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fn fclose(file: libc::FILE) {
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libc::fclose(file)
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}
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fn waitpid(pid: int) -> int {
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let status = 0;
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assert (os::libc::waitpid(pid, status, 0) != -1);
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ret status;
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}
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native "c-stack-cdecl" mod rustrt {
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fn rust_getcwd() -> str;
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}
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fn getcwd() -> str { ret rustrt::rust_getcwd(); }
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/// Returns the directory containing the running program
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/// followed by a path separator
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fn get_exe_path() -> option::t<fs::path> {
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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("/proc/self/exe", { |proc_self_buf|
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str::as_buf(path, { |path_buf|
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if libc::readlink(proc_self_buf, path_buf, bufsize) != -1 {
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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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}
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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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