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add os.ForkExec, os.Exec, os.Wait, exec.OpenCmd.

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as thread-safe as possible, given the surrounding system.
add stub RWLock implementation.

R=r
DELTA=852  (834 added, 6 deleted, 12 changed)
OCL=25046
CL=25053
This commit is contained in:
Russ Cox 2009-02-15 19:35:52 -08:00
parent 97dcc68f1e
commit 91ceda5c18
13 changed files with 848 additions and 16 deletions
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51
src/lib/exec_test.go Normal file
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@ -0,0 +1,51 @@
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package exec
import (
"exec";
"io";
"testing";
)
func TestOpenCmdCat(t *testing.T) {
cmd, err := exec.OpenCmd("/bin/cat", []string("cat"), nil,
exec.Pipe, exec.Pipe, exec.DevNull);
if err != nil {
t.Fatalf("opencmd /bin/cat: %v", err);
}
io.WriteString(cmd.Stdin, "hello, world\n");
cmd.Stdin.Close();
var buf [64]byte;
n, err1 := io.Readn(cmd.Stdout, buf);
if err1 != nil && err1 != io.ErrEOF {
t.Fatalf("reading from /bin/cat: %v", err1);
}
if string(buf[0:n]) != "hello, world\n" {
t.Fatalf("reading from /bin/cat: got %q", buf[0:n]);
}
if err1 = cmd.Close(); err1 != nil {
t.Fatalf("closing /bin/cat: %v", err1);
}
}
func TestOpenCmdEcho(t *testing.T) {
cmd, err := OpenCmd("/bin/echo", []string("echo", "hello", "world"), nil,
exec.DevNull, exec.Pipe, exec.DevNull);
if err != nil {
t.Fatalf("opencmd /bin/echo: %v", err);
}
var buf [64]byte;
n, err1 := io.Readn(cmd.Stdout, buf);
if err1 != nil && err1 != io.ErrEOF {
t.Fatalf("reading from /bin/echo: %v", err1);
}
if string(buf[0:n]) != "hello world\n" {
t.Fatalf("reading from /bin/echo: got %q", buf[0:n]);
}
if err1 = cmd.Close(); err1 != nil {
t.Fatalf("closing /bin/echo: %v", err1);
}
}