static VALUE t_invoke_popen (VALUE self, VALUE cmd)
{
// 1.8.7+
#ifdef RARRAY_LEN
int len = RARRAY_LEN(cmd);
#else
int len = RARRAY (cmd)->len;
#endif
if (len >= 2048)
rb_raise (rb_eRuntimeError, "%s", "too many arguments to popen");
char *strings [2048];
for (int i=0; i < len; i++) {
VALUE ix = INT2FIX (i);
VALUE s = rb_ary_aref (1, &ix, cmd);
strings[i] = StringValuePtr (s);
}
strings[len] = NULL;
unsigned long f = 0;
try {
f = evma_popen (strings);
} catch (std::runtime_error e) {
f = 0; // raise exception below
}
if (!f) {
char *err = strerror (errno);
char buf[100];
memset (buf, 0, sizeof(buf));
snprintf (buf, sizeof(buf)-1, "no popen: %s", (err?err:"???"));
rb_raise (rb_eRuntimeError, "%s", buf);
}
return ULONG2NUM (f);
}
static VALUE t_invoke_popen (VALUE self UNUSED, VALUE cmd)
{
#ifdef OS_WIN32
rb_raise (EM_eUnsupported, "popen is not available on this platform");
#endif
int len = RARRAY_LEN(cmd);
if (len >= 2048)
rb_raise (rb_eRuntimeError, "%s", "too many arguments to popen");
char *strings [2048];
for (int i=0; i < len; i++) {
VALUE ix = INT2FIX (i);
VALUE s = rb_ary_aref (1, &ix, cmd);
strings[i] = StringValueCStr (s);
}
strings[len] = NULL;
uintptr_t f = 0;
try {
f = evma_popen (strings);
} catch (std::runtime_error e) {
rb_raise (rb_eRuntimeError, "%s", e.what());
}
if (!f) {
char *err = strerror (errno);
char buf[100];
memset (buf, 0, sizeof(buf));
snprintf (buf, sizeof(buf)-1, "no popen: %s", (err?err:"???"));
rb_raise (rb_eRuntimeError, "%s", buf);
}
return BSIG2NUM (f);
}
