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/*
Copyright (C) 2004-2006 Grame
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "JackMachPort.h"
#include "JackError.h"
namespace Jack
{
// Server side : port is published to be accessible from other processes (clients)
bool JackMachPort::AllocatePort(const char* name, int queue)
{
mach_port_t task = mach_task_self();
kern_return_t res;
if ((res = task_get_bootstrap_port(task, &fBootPort)) != KERN_SUCCESS) {
jack_error("AllocatePort: Can't find bootstrap mach port err = %s", mach_error_string(res));
return false;
}
if ((res = mach_port_allocate(task, MACH_PORT_RIGHT_RECEIVE, &fServerPort)) != KERN_SUCCESS) {
jack_error("AllocatePort: can't allocate mach port err = %s", mach_error_string(res));
return false;
}
if ((res = mach_port_insert_right(task, fServerPort, fServerPort, MACH_MSG_TYPE_MAKE_SEND)) != KERN_SUCCESS) {
jack_error("AllocatePort: error inserting mach rights err = %s", mach_error_string(res));
return false;
}
if ((res = bootstrap_register(fBootPort, (char*)name, fServerPort)) != KERN_SUCCESS) {
jack_error("Allocate: can't check in mach port name = %s err = %s", name, mach_error_string(res));
return false;
}
mach_port_limits_t qlimits;
mach_msg_type_number_t info_cnt = MACH_PORT_LIMITS_INFO_COUNT;
if ((res = mach_port_get_attributes(task, fServerPort, MACH_PORT_LIMITS_INFO, (mach_port_info_t) & qlimits, &info_cnt)) != KERN_SUCCESS) {
jack_error("Allocate: mach_port_get_attributes error err = %s", name, mach_error_string(res));
}
JackLog("AllocatePort: queue limit %ld\n", qlimits.mpl_qlimit);
if (queue > 0 ) {
qlimits.mpl_qlimit = queue;
if ((res = mach_port_set_attributes(task, fServerPort, MACH_PORT_LIMITS_INFO, (mach_port_info_t) & qlimits, MACH_PORT_LIMITS_INFO_COUNT)) != KERN_SUCCESS) {
jack_error("Allocate: mach_port_set_attributes error name = %s err = %s", name, mach_error_string(res));
}
}
return true;
}
// Server side : port is published to be accessible from other processes (clients)
bool JackMachPort::AllocatePort(const char* name)
{
return AllocatePort(name, -1);
}
// Client side : get the published port from server
bool JackMachPort::ConnectPort(const char* name)
{
kern_return_t res;
JackLog("JackMachPort::ConnectPort %s\n", name);
if ((res = task_get_bootstrap_port(mach_task_self(), &fBootPort)) != KERN_SUCCESS) {
jack_error("ConnectPort: can't find bootstrap port err = %s", mach_error_string(res));
return false;
}
if ((res = bootstrap_look_up(fBootPort, (char*)name, &fServerPort)) != KERN_SUCCESS) {
jack_error("ConnectPort: can't find mach server port name = %s err = %s", name, mach_error_string(res));
return false;
}
return true;
}
bool JackMachPort::DisconnectPort()
{
JackLog("JackMacRPC::DisconnectPort\n");
kern_return_t res;
mach_port_t task = mach_task_self();
if ((res = mach_port_deallocate(task, fBootPort)) != KERN_SUCCESS) {
jack_error("JackMacRPC::DisconnectPort mach_port_deallocate fBootPort err = %s", mach_error_string(res));
}
if ((res = mach_port_deallocate(task, fServerPort)) != KERN_SUCCESS) {
jack_error("JackMacRPC::DisconnectPort mach_port_deallocate fServerPort err = %s", mach_error_string(res));
}
return true;
}
bool JackMachPort::DestroyPort()
{
JackLog("JackMacRPC::DisconnectPort\n");
kern_return_t res;
mach_port_t task = mach_task_self();
if ((res = mach_port_deallocate(task, fBootPort)) != KERN_SUCCESS) {
jack_error("JackMacRPC::DisconnectPort mach_port_deallocate fBootPort err = %s", mach_error_string(res));
}
if ((res = mach_port_destroy(task, fServerPort)) != KERN_SUCCESS) {
jack_error("JackMacRPC::DisconnectPort mach_port_destroy fServerPort err = %s", mach_error_string(res));
}
return true;
}
mach_port_t JackMachPort::GetPort()
{
return fServerPort;
}
bool JackMachPortSet::AllocatePort(const char* name, int queue)
{
kern_return_t res;
mach_port_t task = mach_task_self();
JackLog("JackMachPortSet::AllocatePort\n");
if ((res = task_get_bootstrap_port(task, &fBootPort)) != KERN_SUCCESS) {
jack_error("AllocatePort: Can't find bootstrap mach port err = %s", mach_error_string(res));
return false;
}
if ((res = mach_port_allocate(task, MACH_PORT_RIGHT_RECEIVE, &fServerPort)) != KERN_SUCCESS) {
jack_error("AllocatePort: can't allocate mach port err = %s", mach_error_string(res));
return false;
}
if ((res = mach_port_insert_right(task, fServerPort, fServerPort, MACH_MSG_TYPE_MAKE_SEND)) != KERN_SUCCESS) {
jack_error("AllocatePort: error inserting mach rights err = %s", mach_error_string(res));
return false;
}
if ((res = mach_port_allocate(task, MACH_PORT_RIGHT_PORT_SET, &fPortSet)) != KERN_SUCCESS) {
jack_error("AllocatePort: can't allocate mach port err = %s", mach_error_string(res));
return false;
}
if ((res = mach_port_move_member(task, fServerPort, fPortSet)) != KERN_SUCCESS) {
jack_error("AllocatePort: error in mach_port_move_member err = %s", mach_error_string(res));
return false;
}
if ((res = bootstrap_register(fBootPort, (char*)name, fServerPort)) != KERN_SUCCESS) {
jack_error("Allocate: can't check in mach port name = %s err = %s", name, mach_error_string(res));
return false;
}
mach_port_limits_t qlimits;
mach_msg_type_number_t info_cnt = MACH_PORT_LIMITS_INFO_COUNT;
if ((res = mach_port_get_attributes(task, fServerPort, MACH_PORT_LIMITS_INFO, (mach_port_info_t) & qlimits, &info_cnt)) != KERN_SUCCESS) {
jack_error("Allocate: mach_port_get_attributes error name = %s err = %s", name, mach_error_string(res));
}
JackLog("AllocatePort: queue limit = %ld\n", qlimits.mpl_qlimit);
if (queue > 0 ) {
qlimits.mpl_qlimit = queue;
if ((res = mach_port_set_attributes(task, fServerPort, MACH_PORT_LIMITS_INFO, (mach_port_info_t) & qlimits, MACH_PORT_LIMITS_INFO_COUNT)) != KERN_SUCCESS) {
jack_error("Allocate: mach_port_set_attributes error name = %s err = %s", name, mach_error_string(res));
}
}
return true;
}
// Server side : port is published to be accessible from other processes (clients)
bool JackMachPortSet::AllocatePort(const char* name)
{
return AllocatePort(name, -1);
}
bool JackMachPortSet::DisconnectPort()
{
kern_return_t res;
mach_port_t task = mach_task_self();
JackLog("JackMachPortSet::DisconnectPort\n");
if ((res = mach_port_deallocate(task, fBootPort)) != KERN_SUCCESS) {
jack_error("JackMachPortSet::DisconnectPort mach_port_deallocate fBootPort err = %s", mach_error_string(res));
}
if ((res = mach_port_deallocate(task, fServerPort)) != KERN_SUCCESS) {
jack_error("JackMachPortSet::DisconnectPort mach_port_deallocate fServerPort err = %s", mach_error_string(res));
}
return true;
}
bool JackMachPortSet::DestroyPort()
{
kern_return_t res;
mach_port_t task = mach_task_self();
JackLog("JackMachPortSet::DisconnectPort\n");
if ((res = mach_port_deallocate(task, fBootPort)) != KERN_SUCCESS) {
jack_error("JackMachPortSet::DisconnectPort mach_port_deallocate err = %s", mach_error_string(res));
}
if ((res = mach_port_destroy(task, fServerPort)) != KERN_SUCCESS) {
jack_error("JackMachPortSet::DisconnectPort mach_port_destroy fServerPort err = %s", mach_error_string(res));
}
return true;
}
mach_port_t JackMachPortSet::GetPortSet()
{
return fPortSet;
}
mach_port_t JackMachPortSet::AddPort()
{
kern_return_t res;
mach_port_t task = mach_task_self();
mach_port_t old_port, result = 0;
JackLog("JackMachPortSet::AddPort\n");
if ((res = mach_port_allocate(task, MACH_PORT_RIGHT_RECEIVE, &result)) != KERN_SUCCESS) {
jack_error("AddPort: can't allocate mach port err = %s", mach_error_string(res));
goto error;
}
if ((res = mach_port_request_notification(task, result, MACH_NOTIFY_NO_SENDERS,
1, result, MACH_MSG_TYPE_MAKE_SEND_ONCE, &old_port)) != KERN_SUCCESS) {
jack_error("AddPort: error in mach_port_request_notification err = %s", mach_error_string(res));
goto error;
}
if ((res = mach_port_move_member(task, result, fPortSet)) != KERN_SUCCESS) {
jack_error("AddPort: error in mach_port_move_member err = %s", mach_error_string(res));
goto error;
}
return result;
error:
if (result) {
if ((res = mach_port_destroy(task, result)) != KERN_SUCCESS) {
jack_error("JackMacRPC::DisconnectPort mach_port_destroy err = %s", mach_error_string(res));
}
}
return 0;
}
} // end of namespace
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