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