481f7c3965
Renamed pbd3 back to pbd, since it's version 4.1 now. Very minor fixes git-svn-id: svn://localhost/ardour2/trunk@656 d708f5d6-7413-0410-9779-e7cbd77b26cf
89 lines
1.6 KiB
C++
89 lines
1.6 KiB
C++
#include <stdint.h>
|
|
#include <unistd.h>
|
|
#include <fcntl.h>
|
|
#include <errno.h>
|
|
|
|
#include <pbd/base_ui.h>
|
|
#include <pbd/error.h>
|
|
#include <pbd/compose.h>
|
|
#include <pbd/failed_constructor.h>
|
|
|
|
#include "i18n.h"
|
|
|
|
using namespace std;
|
|
using namespace PBD;
|
|
|
|
uint32_t BaseUI::rt_bit = 1;
|
|
BaseUI::RequestType BaseUI::CallSlot = BaseUI::new_request_type();
|
|
|
|
BaseUI::BaseUI (string str, bool with_signal_pipe)
|
|
: _name (str)
|
|
{
|
|
/* odd pseudo-singleton semantics */
|
|
|
|
base_ui_instance = this;
|
|
|
|
signal_pipe[0] = -1;
|
|
signal_pipe[1] = -1;
|
|
|
|
if (with_signal_pipe) {
|
|
if (setup_signal_pipe ()) {
|
|
throw failed_constructor ();
|
|
}
|
|
}
|
|
}
|
|
|
|
BaseUI::~BaseUI()
|
|
{
|
|
if (signal_pipe[0] >= 0) {
|
|
close (signal_pipe[0]);
|
|
}
|
|
|
|
if (signal_pipe[1] >= 0) {
|
|
close (signal_pipe[1]);
|
|
}
|
|
}
|
|
|
|
BaseUI::RequestType
|
|
BaseUI::new_request_type ()
|
|
{
|
|
RequestType rt;
|
|
|
|
/* XXX catch out-of-range */
|
|
|
|
rt = RequestType (rt_bit);
|
|
rt_bit <<= 1;
|
|
|
|
return rt;
|
|
}
|
|
|
|
int
|
|
BaseUI::setup_signal_pipe ()
|
|
{
|
|
/* setup the pipe that other threads send us notifications/requests
|
|
through.
|
|
*/
|
|
|
|
if (pipe (signal_pipe)) {
|
|
error << string_compose (_("%1-UI: cannot create error signal pipe (%2)"), _name, std::strerror (errno))
|
|
<< endmsg;
|
|
|
|
return -1;
|
|
}
|
|
|
|
if (fcntl (signal_pipe[0], F_SETFL, O_NONBLOCK)) {
|
|
error << string_compose (_("%1-UI: cannot set O_NONBLOCK on signal read pipe (%2)"), _name, std::strerror (errno))
|
|
<< endmsg;
|
|
return -1;
|
|
}
|
|
|
|
if (fcntl (signal_pipe[1], F_SETFL, O_NONBLOCK)) {
|
|
error << string_compose (_("%1-UI: cannot set O_NONBLOCK on signal write pipe (%2)"), _name, std::strerror (errno))
|
|
<< endmsg;
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|