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#if defined(__sun__) && defined(__svr4__)
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <port.h>
#include <sys/port_impl.h>
#endif
#include <unistd.h>
#include "mplexer.hh"
#include "sstuff.hh"
#include <iostream>
#include "misc.hh"
#include "namespaces.hh"
class PortsFDMultiplexer : public FDMultiplexer
{
public:
PortsFDMultiplexer();
~PortsFDMultiplexer()
{
close(d_portfd);
}
int run(struct timeval* tv, int timeout = 500) override;
void getAvailableFDs(std::vector<int>& fds, int timeout) override;
void addFD(int fd, FDMultiplexer::EventKind kind) override;
void removeFD(int fd, FDMultiplexer::EventKind kind) override;
string getName() const override
{
return "solaris completion ports";
}
private:
int d_portfd;
boost::shared_array<port_event_t> d_pevents;
static int s_maxevents; // not a hard maximum
};
static FDMultiplexer* makePorts()
{
return new PortsFDMultiplexer();
}
static struct PortsRegisterOurselves
{
PortsRegisterOurselves()
{
FDMultiplexer::getMultiplexerMap().emplace(0, &makePorts); // priority 0!
}
} doItPorts;
int PortsFDMultiplexer::s_maxevents = 1024;
PortsFDMultiplexer::PortsFDMultiplexer() :
d_pevents(new port_event_t[s_maxevents])
{
d_portfd = port_create(); // not hard max
if (d_portfd < 0) {
throw FDMultiplexerException("Setting up port: " + stringerror());
}
}
static int convertEventKind(FDMultiplexer::EventKind kind)
{
switch (kind) {
case FDMultiplexer::EventKind::Read:
return POLLIN;
case FDMultiplexer::EventKind::Write:
return POLLOUT;
case FDMultiplexer::EventKind::Both:
return POLLIN | POLLOUT;
}
throw std::runtime_error("Unhandled event kind in the ports multiplexer");
}
void PortsFDMultiplexer::addFD(int fd, FDMultiplexer::EventKind kind)
{
if (port_associate(d_portfd, PORT_SOURCE_FD, fd, convertEventKind(kind), 0) < 0) {
throw FDMultiplexerException("Adding fd to port set: " + stringerror());
}
}
void PortsFDMultiplexer::removeFD(int fd, FDMultiplexer::EventKind)
{
if (port_dissociate(d_portfd, PORT_SOURCE_FD, fd) < 0 && errno != ENOENT) { // it appears under some circumstances, ENOENT will be returned, without this being an error. Apache has this same "fix"
throw FDMultiplexerException("Removing fd from port set: " + stringerror());
}
}
void PortsFDMultiplexer::getAvailableFDs(std::vector<int>& fds, int timeout)
{
struct timespec timeoutspec;
timeoutspec.tv_sec = timeout / 1000;
timeoutspec.tv_nsec = (timeout % 1000) * 1000000;
unsigned int numevents = 1;
int ret = port_getn(d_portfd, d_pevents.get(), min(PORT_MAX_LIST, s_maxevents), &numevents, &timeoutspec);
/* port_getn has an unusual API - (ret == -1, errno == ETIME) can
mean partial success; you must check (*numevents) in this case
and process anything in there, otherwise you'll never see any
events from that object again. We don't care about pure timeouts
(ret == -1, errno == ETIME, *numevents == 0) so we don't bother
with that case. */
if (ret == -1 && errno != ETIME) {
if (errno != EINTR) {
throw FDMultiplexerException("completion port_getn returned error: " + stringerror());
}
// EINTR is not really an error
return;
}
if (numevents == 0) {
// nothing
return;
}
fds.reserve(numevents);
for (unsigned int n = 0; n < numevents; ++n) {
const auto fd = d_pevents[n].portev_object;
/* we need to re-associate the FD */
if ((d_pevents[n].portev_events & POLLIN || d_pevents[n].portev_events & POLLERR || d_pevents[n].portev_events & POLLHUP)) {
if (d_readCallbacks.count(fd)) {
if (port_associate(d_portfd, PORT_SOURCE_FD, fd, d_writeCallbacks.count(fd) > 0 ? POLLIN | POLLOUT : POLLIN, 0) < 0) {
throw FDMultiplexerException("Unable to add fd back to ports (read): " + stringerror());
}
}
}
else if ((d_pevents[n].portev_events & POLLOUT || d_pevents[n].portev_events & POLLERR)) {
if (d_writeCallbacks.count(fd)) {
if (port_associate(d_portfd, PORT_SOURCE_FD, fd, d_readCallbacks.count(fd) > 0 ? POLLIN | POLLOUT : POLLOUT, 0) < 0) {
throw FDMultiplexerException("Unable to add fd back to ports (write): " + stringerror());
}
}
}
else {
/* not registered, this is unexpected */
continue;
}
fds.push_back(fd);
}
}
int PortsFDMultiplexer::run(struct timeval* now, int timeout)
{
if (d_inrun) {
throw FDMultiplexerException("FDMultiplexer::run() is not reentrant!\n");
}
struct timespec timeoutspec;
timeoutspec.tv_sec = timeout / 1000;
timeoutspec.tv_nsec = (timeout % 1000) * 1000000;
unsigned int numevents = 1;
int ret = port_getn(d_portfd, d_pevents.get(), min(PORT_MAX_LIST, s_maxevents), &numevents, &timeoutspec);
/* port_getn has an unusual API - (ret == -1, errno == ETIME) can
mean partial success; you must check (*numevents) in this case
and process anything in there, otherwise you'll never see any
events from that object again. We don't care about pure timeouts
(ret == -1, errno == ETIME, *numevents == 0) so we don't bother
with that case. */
if (ret == -1 && errno != ETIME) {
if (errno != EINTR) {
throw FDMultiplexerException("completion port_getn returned error: " + stringerror());
}
// EINTR is not really an error
gettimeofday(now, nullptr);
return 0;
}
gettimeofday(now, nullptr);
if (!numevents) {
// nothing
return 0;
}
d_inrun = true;
int count = 0;
for (unsigned int n = 0; n < numevents; ++n) {
if (d_pevents[n].portev_events & POLLIN || d_pevents[n].portev_events & POLLERR || d_pevents[n].portev_events & POLLHUP) {
const auto& iter = d_readCallbacks.find(d_pevents[n].portev_object);
if (iter != d_readCallbacks.end()) {
iter->d_callback(iter->d_fd, iter->d_parameter);
count++;
if (d_readCallbacks.count(d_pevents[n].portev_object) && port_associate(d_portfd, PORT_SOURCE_FD, d_pevents[n].portev_object, d_writeCallbacks.count(d_pevents[n].portev_object) ? POLLIN | POLLOUT : POLLIN, 0) < 0) {
throw FDMultiplexerException("Unable to add fd back to ports (read): " + stringerror());
}
}
}
if (d_pevents[n].portev_events & POLLOUT || d_pevents[n].portev_events & POLLERR) {
const auto& iter = d_writeCallbacks.find(d_pevents[n].portev_object);
if (iter != d_writeCallbacks.end()) {
iter->d_callback(iter->d_fd, iter->d_parameter);
count++;
if (d_writeCallbacks.count(d_pevents[n].portev_object) && port_associate(d_portfd, PORT_SOURCE_FD, d_pevents[n].portev_object, d_readCallbacks.count(d_pevents[n].portev_object) ? POLLIN | POLLOUT : POLLOUT, 0) < 0) {
throw FDMultiplexerException("Unable to add fd back to ports (write): " + stringerror());
}
}
}
}
d_inrun = false;
return count;
}
#if 0
void acceptData(int fd, boost::any& parameter)
{
cout<<"Have data on fd "<<fd<<endl;
Socket* sock=boost::any_cast<Socket*>(parameter);
string packet;
IPEndpoint rem;
sock->recvFrom(packet, rem);
cout<<"Received "<<packet.size()<<" bytes!\n";
}
int main()
{
Socket s(AF_INET, SOCK_DGRAM);
IPEndpoint loc("0.0.0.0", 2000);
s.bind(loc);
PortsFDMultiplexer sfm;
sfm.addReadFD(s.getHandle(), &acceptData, &s);
for(int n=0; n < 100 ; ++n) {
sfm.run();
}
sfm.removeReadFD(s.getHandle());
sfm.removeReadFD(s.getHandle());
}
#endif
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