114 lines
2.8 KiB
Rust
114 lines
2.8 KiB
Rust
import run::spawn_process;
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import io::{writer_util, reader_util};
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import libc::{c_int, pid_t};
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import pipes::chan;
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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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vec::push(env, (~"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::port_set();
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let ch = p.chan();
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do task::spawn_sched(task::single_threaded) {
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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::single_threaded) {
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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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alt 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 option::is_some(s) {
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let writer = io::fd_writer(fd, false);
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writer.write_str(option::get(s));
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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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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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