Module: Open3
- Defined in:
- ext/win32/open3.c
Constant Summary collapse
- WIN32_OPEN3_VERSION =
The version of this library
0.2.9
Class Method Summary collapse
-
.popen3(*args) ⇒ Object
Executes ‘command’, returning an array of three IO handles representing STDIN, STDOUT and STDERR, respectively.
Class Method Details
.popen3(cmd, mode = 't', show = false) ⇒ Object .popen3(cmd, mode = 't', show = false) {|io_in, io_out, io_err| ... } ⇒ Object
Executes ‘command’, returning an array of three IO handles representing STDIN, STDOUT and STDERR, respectively. In block form these IO handles are yielded back to the block and automatically closed at the end of the block.
You may optionally pass a mode flag of ‘t’ (text, the default) or ‘b’ (binary) to this method.
If the ‘show’ variable is set to true, then a console window is shown.
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# File 'ext/win32/open3.c', line 110
static VALUE win32_popen3(int argc, VALUE *argv, VALUE klass)
{
VALUE v_name, v_mode, v_port;
VALUE v_show_window = Qfalse;
char mbuf[4];
int tm = 0;
char *mode = "t";
rb_scan_args(argc, argv, "12", &v_name, &v_mode, &v_show_window);
// Mode can be either a string or a number
if(!NIL_P(v_mode)){
if(FIXNUM_P(v_mode))
mode = rb_io_modenum_mode(FIX2INT(v_mode), mbuf);
else
mode = StringValuePtr(v_mode);
}
if(*mode == 't')
tm = _O_TEXT;
else if(*mode != 'b')
rb_raise(rb_eArgError, "popen3() arg 2 must be 't' or 'b'");
else
tm = _O_BINARY;
v_port = ruby_popen(StringValuePtr(v_name), tm, v_show_window);
// Ensure handles are closed in block form
if(rb_block_given_p()){
return rb_ensure(rb_yield_splat, v_port, io_close, v_port);
}
return v_port;
}
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