129 lines
3.3 KiB
Rust
129 lines
3.3 KiB
Rust
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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use io;
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use io::{ReaderUtil, WriterUtil};
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use libc;
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use libc::{c_int, pid_t};
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use os;
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use run;
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use run::spawn_process;
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use pipes;
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use str;
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use task;
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export run;
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#[cfg(target_os = "win32")]
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fn target_env(lib_path: ~str, prog: ~str) -> ~[(~str,~str)] {
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let mut env = os::env();
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// Make sure we include the aux directory in the path
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assert prog.ends_with(~".exe");
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let aux_path = prog.slice(0u, prog.len() - 4u) + ~".libaux";
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env = do vec::map(env) |pair| {
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let (k,v) = *pair;
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if k == ~"PATH" { (~"PATH", v + ~";" + lib_path + ~";" + aux_path) }
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else { (k,v) }
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};
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if str::ends_with(prog, ~"rustc.exe") {
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env.push((~"RUST_THREADS", ~"1"));
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}
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return env;
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}
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#[cfg(target_os = "linux")]
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#[cfg(target_os = "macos")]
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#[cfg(target_os = "freebsd")]
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fn target_env(_lib_path: ~str, _prog: ~str) -> ~[(~str,~str)] {
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~[]
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}
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// FIXME (#2659): This code is duplicated in core::run::program_output
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fn run(lib_path: ~str,
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prog: ~str,
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args: ~[~str],
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env: ~[(~str, ~str)],
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input: Option<~str>) -> {status: int, out: ~str, err: ~str} {
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let pipe_in = os::pipe();
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let pipe_out = os::pipe();
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let pipe_err = os::pipe();
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let pid = spawn_process(prog, args,
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&Some(env + target_env(lib_path, prog)),
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&None, pipe_in.in, pipe_out.out, pipe_err.out);
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os::close(pipe_in.in);
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os::close(pipe_out.out);
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os::close(pipe_err.out);
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if pid == -1i32 {
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os::close(pipe_in.out);
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os::close(pipe_out.in);
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os::close(pipe_err.in);
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fail;
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}
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writeclose(pipe_in.out, input);
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let p = pipes::PortSet();
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let ch = p.chan();
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do task::spawn_sched(task::SingleThreaded) |move ch| {
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let errput = readclose(pipe_err.in);
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ch.send((2, errput));
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}
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let ch = p.chan();
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do task::spawn_sched(task::SingleThreaded) |move ch| {
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let output = readclose(pipe_out.in);
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ch.send((1, output));
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}
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let status = run::waitpid(pid);
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let mut errs = ~"";
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let mut outs = ~"";
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let mut count = 2;
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while count > 0 {
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match p.recv() {
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(1, s) => {
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outs = s;
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}
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(2, s) => {
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errs = s;
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}
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_ => { fail }
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};
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count -= 1;
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};
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return {status: status, out: outs, err: errs};
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}
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fn writeclose(fd: c_int, s: Option<~str>) {
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if s.is_some() {
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let writer = io::fd_writer(fd, false);
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writer.write_str(s.get());
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}
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os::close(fd);
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}
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fn readclose(fd: c_int) -> ~str {
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// Copied from run::program_output
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let file = os::fdopen(fd);
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let reader = io::FILE_reader(file, false);
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let mut buf = ~"";
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while !reader.eof() {
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let bytes = reader.read_bytes(4096u);
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str::push_str(&mut buf, str::from_bytes(bytes));
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}
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os::fclose(file);
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return buf;
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}
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