/** Create interruptable pollset on top of APR pollset */
APT_DECLARE(apt_pollset_t*) apt_pollset_create(apr_uint32_t size, apr_pool_t *pool)
{
apt_pollset_t *pollset = apr_palloc(pool,sizeof(apt_pollset_t));
pollset->pool = pool;
memset(&pollset->wakeup_pfd,0,sizeof(pollset->wakeup_pfd));
/* create pollset with max number of descriptors size+1,
where +1 is builtin wakeup descriptor */
if(apr_pollset_create(&pollset->base,size+1,pool,0) != APR_SUCCESS) {
return NULL;
}
/* create wakeup pipe */
if(apt_wakeup_pipe_create(pollset) != TRUE) {
apr_pollset_destroy(pollset->base);
return NULL;
}
/* add wakeup pipe to pollset */
if(apr_pollset_add(pollset->base,&pollset->wakeup_pfd) != APR_SUCCESS) {
apt_wakeup_pipe_destroy(pollset);
apr_pollset_destroy(pollset->base);
return NULL;
}
return pollset;
}
static apt_bool_t mrcp_client_agent_pollset_create(mrcp_connection_agent_t *agent)
{
apr_status_t status;
/* create pollset */
status = apr_pollset_create(&agent->pollset, (apr_uint32_t)agent->max_connection_count + 1, agent->pool, 0);
if(status != APR_SUCCESS) {
apt_log(APT_PRIO_WARNING,"Failed to Create Pollset");
return FALSE;
}
/* create control socket */
if(mrcp_client_agent_control_socket_create(agent) != TRUE) {
apt_log(APT_PRIO_WARNING,"Failed to Create Control Socket");
apr_pollset_destroy(agent->pollset);
return FALSE;
}
/* add control socket to pollset */
agent->control_sock_pfd.desc_type = APR_POLL_SOCKET;
agent->control_sock_pfd.reqevents = APR_POLLIN;
agent->control_sock_pfd.desc.s = agent->control_sock;
agent->control_sock_pfd.client_data = agent->control_sock;
status = apr_pollset_add(agent->pollset, &agent->control_sock_pfd);
if(status != APR_SUCCESS) {
apt_log(APT_PRIO_WARNING,"Failed to Add Control Socket to Pollset");
mrcp_client_agent_control_socket_destroy(agent);
apr_pollset_destroy(agent->pollset);
return FALSE;
}
return TRUE;
}
apr_status_t apr_wait_for_io_or_timeout(apr_file_t *f, apr_socket_t *s,
int for_read)
{
apr_interval_time_t timeout;
apr_pollfd_t pfd;
int type = for_read ? APR_POLLIN : APR_POLLOUT;
apr_pollset_t *pollset;
apr_status_t status;
/* TODO - timeout should be less each time through this loop */
if (f) {
pfd.desc_type = APR_POLL_FILE;
pfd.desc.f = f;
pollset = f->pollset;
if (pollset == NULL) {
status = apr_pollset_create(&(f->pollset), 1, f->pool, 0);
if (status != APR_SUCCESS) {
return status;
}
pollset = f->pollset;
}
timeout = f->timeout;
}
else {
pfd.desc_type = APR_POLL_SOCKET;
pfd.desc.s = s;
pollset = s->pollset;
timeout = s->timeout;
}
pfd.reqevents = type;
/* Remove the object if it was in the pollset, then add in the new
* object with the correct reqevents value. Ignore the status result
* on the remove, because it might not be in there (yet).
*/
(void) apr_pollset_remove(pollset, &pfd);
/* ### check status code */
(void) apr_pollset_add(pollset, &pfd);
do {
int numdesc;
const apr_pollfd_t *pdesc;
status = apr_pollset_poll(pollset, timeout, &numdesc, &pdesc);
if (numdesc == 1 && (pdesc[0].rtnevents & type) != 0) {
return APR_SUCCESS;
}
} while (APR_STATUS_IS_EINTR(status));
return status;
}
serf_context_t *serf_context_create_ex(
void *user_baton,
serf_socket_add_t addf,
serf_socket_remove_t rmf,
apr_pool_t *pool)
{
serf_context_t *ctx = apr_pcalloc(pool, sizeof(*ctx));
ctx->pool = pool;
if (user_baton != NULL) {
ctx->pollset_baton = user_baton;
ctx->pollset_add = addf;
ctx->pollset_rm = rmf;
}
else {
/* build the pollset with a (default) number of connections */
serf_pollset_t *ps = apr_pcalloc(pool, sizeof(*ps));
/* ### TODO: As of APR 1.4.x apr_pollset_create_ex can return a status
### other than APR_SUCCESS, so we should handle it.
### Probably move creation of the pollset to later when we have
### the possibility of returning status to the caller.
*/
#ifdef BROKEN_WSAPOLL
/* APR 1.4.x switched to using WSAPoll() on Win32, but it does not
* properly handle errors on a non-blocking sockets (such as
* connecting to a server where no listener is active).
*
* So, sadly, we must force using select() on Win32.
*
* http://mail-archives.apache.org/mod_mbox/apr-dev/201105.mbox/%[email protected]%3E
*/
(void) apr_pollset_create_ex(&ps->pollset, MAX_CONN, pool, 0,
APR_POLLSET_SELECT);
#else
(void) apr_pollset_create(&ps->pollset, MAX_CONN, pool, 0);
#endif
ctx->pollset_baton = ps;
ctx->pollset_add = pollset_add;
ctx->pollset_rm = pollset_rm;
}
/* default to a single connection since that is the typical case */
ctx->conns = apr_array_make(pool, 1, sizeof(serf_connection_t *));
/* Initialize progress status */
ctx->progress_read = 0;
ctx->progress_written = 0;
ctx->authn_types = SERF_AUTHN_ALL;
ctx->server_authn_info = apr_hash_make(pool);
return ctx;
}
APR_DECLARE(apr_status_t) apr_file_pipe_create(apr_file_t **in, apr_file_t **out, apr_pool_t *pool)
{
int filedes[2];
int err;
if (pipe(filedes) == -1) {
return errno;
}
(*in) = (apr_file_t *)apr_pcalloc(pool, sizeof(apr_file_t));
(*out) = (apr_file_t *)apr_pcalloc(pool, sizeof(apr_file_t));
(*in)->pool =
(*out)->pool = pool;
(*in)->filedes = filedes[0];
(*out)->filedes = filedes[1];
(*in)->flags = APR_INHERIT;
(*out)->flags = APR_INHERIT;
(*in)->is_pipe =
(*out)->is_pipe = 1;
(*out)->fname =
(*in)->fname = NULL;
(*in)->buffered =
(*out)->buffered = 0;
(*in)->blocking =
(*out)->blocking = BLK_ON;
(*in)->timeout =
(*out)->timeout = -1;
(*in)->ungetchar = -1;
(*in)->thlock =
(*out)->thlock = NULL;
(void) apr_pollset_create(&(*in)->pollset, 1, pool, 0);
(void) apr_pollset_create(&(*out)->pollset, 1, pool, 0);
apr_pool_cleanup_register((*in)->pool, (void *)(*in), apr_unix_file_cleanup,
apr_pool_cleanup_null);
apr_pool_cleanup_register((*out)->pool, (void *)(*out), apr_unix_file_cleanup,
apr_pool_cleanup_null);
return APR_SUCCESS;
}
void LLPumpIO::rebuildPollset()
{
LLMemType m1(LLMemType::MTYPE_IO_PUMP);
// lldebugs << "LLPumpIO::rebuildPollset()" << llendl;
if(mPollset)
{
//lldebugs << "destroying pollset" << llendl;
apr_pollset_destroy(mPollset);
mPollset = NULL;
}
U32 size = 0;
running_chains_t::iterator run_it = mRunningChains.begin();
running_chains_t::iterator run_end = mRunningChains.end();
for(; run_it != run_end; ++run_it)
{
size += (*run_it).mDescriptors.size();
}
//lldebugs << "found " << size << " descriptors." << llendl;
if(size)
{
// Recycle the memory pool
const S32 POLLSET_POOL_RECYCLE_COUNT = 100;
if(mCurrentPool
&& (0 == (++mCurrentPoolReallocCount % POLLSET_POOL_RECYCLE_COUNT)))
{
apr_pool_destroy(mCurrentPool);
mCurrentPool = NULL;
mCurrentPoolReallocCount = 0;
}
if(!mCurrentPool)
{
apr_status_t status = apr_pool_create(&mCurrentPool, mPool);
(void)ll_apr_warn_status(status);
}
// add all of the file descriptors
run_it = mRunningChains.begin();
LLChainInfo::conditionals_t::iterator fd_it;
LLChainInfo::conditionals_t::iterator fd_end;
apr_pollset_create(&mPollset, size, mCurrentPool, 0);
for(; run_it != run_end; ++run_it)
{
fd_it = (*run_it).mDescriptors.begin();
fd_end = (*run_it).mDescriptors.end();
for(; fd_it != fd_end; ++fd_it)
{
apr_pollset_add(mPollset, &((*fd_it).second));
}
}
}
}
int poll_worker_create(
poll_worker_t **worker,
poll_mgr_t *mgr) {
poll_worker_t *w = (poll_worker_t*) malloc(sizeof(poll_worker_t));
w->mgr = mgr;
apr_pool_create(&w->mp_poll, NULL);
w->ht_jobs = apr_hash_make(w->mp_poll);
apr_thread_mutex_create(&w->mx_poll, APR_THREAD_MUTEX_UNNESTED, w->mp_poll);
apr_pollset_create(&w->ps, 1000, w->mp_poll, APR_POLLSET_THREADSAFE);
w->fg_exit = false;
poll_worker_start(w);
*worker = w;
return 0;
}
/* Create a CGI bucket using pipes from script stdout 'out'
* and stderr 'err', for request 'r'. */
static apr_bucket *cgi_bucket_create(request_rec *r,
apr_file_t *out, apr_file_t *err,
apr_bucket_alloc_t *list)
{
apr_bucket *b = apr_bucket_alloc(sizeof(*b), list);
apr_status_t rv;
apr_pollfd_t fd;
struct cgi_bucket_data *data = apr_palloc(r->pool, sizeof *data);
APR_BUCKET_INIT(b);
b->free = apr_bucket_free;
b->list = list;
b->type = &bucket_type_cgi;
b->length = (apr_size_t)(-1);
b->start = -1;
/* Create the pollset */
rv = apr_pollset_create(&data->pollset, 2, r->pool, 0);
if (rv != APR_SUCCESS) {
ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, APLOGNO(01217)
"apr_pollset_create(); check system or user limits");
return NULL;
}
fd.desc_type = APR_POLL_FILE;
fd.reqevents = APR_POLLIN;
fd.p = r->pool;
fd.desc.f = out; /* script's stdout */
fd.client_data = (void *)1;
rv = apr_pollset_add(data->pollset, &fd);
if (rv != APR_SUCCESS) {
ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, APLOGNO(01218)
"apr_pollset_add(); check system or user limits");
return NULL;
}
fd.desc.f = err; /* script's stderr */
fd.client_data = (void *)2;
rv = apr_pollset_add(data->pollset, &fd);
if (rv != APR_SUCCESS) {
ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, APLOGNO(01219)
"apr_pollset_add(); check system or user limits");
return NULL;
}
data->r = r;
b->data = data;
return b;
}
APR_DECLARE(apr_status_t) apr_file_dup(apr_file_t **new_file,
apr_file_t *old_file, apr_pool_t *p)
{
#ifdef _WIN32_WCE
return APR_ENOTIMPL;
#else
HANDLE hproc = GetCurrentProcess();
HANDLE newhand = NULL;
if (!DuplicateHandle(hproc, old_file->filehand,
hproc, &newhand, 0, FALSE,
DUPLICATE_SAME_ACCESS)) {
return apr_get_os_error();
}
(*new_file) = (apr_file_t *) apr_pcalloc(p, sizeof(apr_file_t));
(*new_file)->filehand = newhand;
(*new_file)->flags = old_file->flags & ~(APR_STD_FLAGS | APR_INHERIT);
(*new_file)->pool = p;
(*new_file)->fname = apr_pstrdup(p, old_file->fname);
(*new_file)->append = old_file->append;
(*new_file)->buffered = FALSE;
(*new_file)->ungetchar = old_file->ungetchar;
#if APR_HAS_THREADS
if (old_file->mutex) {
apr_thread_mutex_create(&((*new_file)->mutex),
APR_THREAD_MUTEX_DEFAULT, p);
}
#endif
apr_pool_cleanup_register((*new_file)->pool, (void *)(*new_file), file_cleanup,
apr_pool_cleanup_null);
#if APR_FILES_AS_SOCKETS
/* Create a pollset with room for one descriptor. */
/* ### check return codes */
(void) apr_pollset_create(&(*new_file)->pollset, 1, p, 0);
#endif
return APR_SUCCESS;
#endif /* !defined(_WIN32_WCE) */
}
APR_DECLARE(apr_status_t) apr_file_setaside(apr_file_t **new_file,
apr_file_t *old_file,
apr_pool_t *p)
{
*new_file = (apr_file_t *)apr_palloc(p, sizeof(apr_file_t));
memcpy(*new_file, old_file, sizeof(apr_file_t));
(*new_file)->pool = p;
if (old_file->buffered) {
(*new_file)->buffer = apr_palloc(p, old_file->bufsize);
(*new_file)->bufsize = old_file->bufsize;
if (old_file->direction == 1) {
memcpy((*new_file)->buffer, old_file->buffer, old_file->bufpos);
}
else {
memcpy((*new_file)->buffer, old_file->buffer, old_file->dataRead);
}
}
if (old_file->mutex) {
apr_thread_mutex_create(&((*new_file)->mutex),
APR_THREAD_MUTEX_DEFAULT, p);
apr_thread_mutex_destroy(old_file->mutex);
}
if (old_file->fname) {
(*new_file)->fname = apr_pstrdup(p, old_file->fname);
}
if (!(old_file->flags & APR_FOPEN_NOCLEANUP)) {
apr_pool_cleanup_register(p, (void *)(*new_file),
file_cleanup,
file_cleanup);
}
old_file->filehand = INVALID_HANDLE_VALUE;
apr_pool_cleanup_kill(old_file->pool, (void *)old_file,
file_cleanup);
#if APR_FILES_AS_SOCKETS
/* Create a pollset with room for one descriptor. */
/* ### check return codes */
(void) apr_pollset_create(&(*new_file)->pollset, 1, p, 0);
#endif
return APR_SUCCESS;
}
/* XXX: Problem; we need to choose between blocking and nonblocking based
* on how *thefile was opened, and we don't have that information :-/
* Hack; assume a blocking socket, since the most common use for the fn
* would be to handle stdio-style or blocking pipes. Win32 doesn't have
* select() blocking for pipes anyways :(
*/
APR_DECLARE(apr_status_t) apr_os_pipe_put_ex(apr_file_t **file,
apr_os_file_t *thefile,
int register_cleanup,
apr_pool_t *pool)
{
(*file) = apr_pcalloc(pool, sizeof(apr_file_t));
(*file)->pool = pool;
(*file)->pipe = 1;
(*file)->timeout = -1;
(*file)->ungetchar = -1;
(*file)->filehand = *thefile;
(void) apr_pollset_create(&(*file)->pollset, 1, pool, 0);
if (register_cleanup) {
apr_pool_cleanup_register(pool, *file, file_cleanup,
apr_pool_cleanup_null);
}
return APR_SUCCESS;
}
/* Create a CGI bucket using pipes from script stdout 'out'
* and stderr 'err', for request 'r'. */
static apr_bucket *cgi_bucket_create(request_rec *r,
apr_file_t *out, apr_file_t *err,
apr_bucket_alloc_t *list)
{
apr_bucket *b = apr_bucket_alloc(sizeof(*b), list);
apr_status_t rv;
apr_pollfd_t fd;
struct cgi_bucket_data *data = apr_palloc(r->pool, sizeof *data);
APR_BUCKET_INIT(b);
b->free = apr_bucket_free;
b->list = list;
b->type = &bucket_type_cgi;
b->length = (apr_size_t)(-1);
b->start = -1;
/* Create the pollset */
rv = apr_pollset_create(&data->pollset, 2, r->pool, 0);
AP_DEBUG_ASSERT(rv == APR_SUCCESS);
fd.desc_type = APR_POLL_FILE;
fd.reqevents = APR_POLLIN;
fd.p = r->pool;
fd.desc.f = out; /* script's stdout */
fd.client_data = (void *)1;
rv = apr_pollset_add(data->pollset, &fd);
AP_DEBUG_ASSERT(rv == APR_SUCCESS);
fd.desc.f = err; /* script's stderr */
fd.client_data = (void *)2;
rv = apr_pollset_add(data->pollset, &fd);
AP_DEBUG_ASSERT(rv == APR_SUCCESS);
data->r = r;
b->data = data;
return b;
}
int sock_listen(net_sock_t *nsock, int max_pending)
{
int err;
network_sock_t *sock = (network_sock_t *)nsock;
if (sock == NULL) return(1);
err = apr_socket_listen(sock->fd, max_pending);
if (err != APR_SUCCESS) return(err);
//** Create the polling info
apr_pollset_create(&(sock->pollset), 1, sock->mpool, APR_POLLSET_THREADSAFE);
// sock->pfd = { sock->mpool, APR_POLL_SOCKET, APR_POLLIN, 0, { NULL }, NULL };
sock->pfd.p = sock->mpool;
sock->pfd.desc_type = APR_POLL_SOCKET;
sock->pfd.reqevents = APR_POLLIN;
sock->pfd.rtnevents = 0;
sock->pfd.desc.s = sock->fd;
sock->pfd.client_data = NULL;
apr_pollset_add(sock->pollset, &(sock->pfd));
return(0);
}
SWITCH_DECLARE(switch_status_t) switch_pollset_create(switch_pollset_t ** pollset, uint32_t size, switch_memory_pool_t *p, uint32_t flags)
{
return apr_pollset_create(pollset, size, p, flags);
}
void LLPluginProcessParent::updatePollset()
{
if(!sInstancesMutex)
{
// No instances have been created yet. There's no work to do.
return;
}
LLMutexLock lock(sInstancesMutex);
if(sPollSet)
{
LL_DEBUGS("PluginPoll") << "destroying pollset " << sPollSet << LL_ENDL;
// delete the existing pollset.
apr_pollset_destroy(sPollSet);
sPollSet = NULL;
sPollSetPool.destroy();
}
std::list<LLPluginProcessParent*>::iterator iter;
int count = 0;
// Count the number of instances that want to be in the pollset
for(iter = sInstances.begin(); iter != sInstances.end(); iter++)
{
(*iter)->mPolledInput = false;
if((*iter)->mPollFD.client_data)
{
// This instance has a socket that needs to be polled.
++count;
}
}
if(sUseReadThread && sReadThread && !sReadThread->isQuitting())
{
if(!sPollSet && (count > 0))
{
#ifdef APR_POLLSET_NOCOPY
// The pollset doesn't exist yet. Create it now.
sPollSetPool.create();
apr_status_t status = apr_pollset_create(&sPollSet, count, sPollSetPool(), APR_POLLSET_NOCOPY);
if(status != APR_SUCCESS)
{
#endif // APR_POLLSET_NOCOPY
LL_WARNS("PluginPoll") << "Couldn't create pollset. Falling back to non-pollset mode." << LL_ENDL;
sPollSet = NULL;
sPollSetPool.destroy();
#ifdef APR_POLLSET_NOCOPY
}
else
{
LL_DEBUGS("PluginPoll") << "created pollset " << sPollSet << LL_ENDL;
// Pollset was created, add all instances to it.
for(iter = sInstances.begin(); iter != sInstances.end(); iter++)
{
if((*iter)->mPollFD.client_data)
{
status = apr_pollset_add(sPollSet, &((*iter)->mPollFD));
if(status == APR_SUCCESS)
{
(*iter)->mPolledInput = true;
}
else
{
LL_WARNS("PluginPoll") << "apr_pollset_add failed with status " << status << LL_ENDL;
}
}
}
}
#endif // APR_POLLSET_NOCOPY
}
}
}
apr_status_t run_test_server(serv_ctx_t *servctx,
apr_short_interval_time_t duration,
apr_pool_t *pool)
{
apr_status_t status;
apr_pollset_t *pollset;
apr_int32_t num;
const apr_pollfd_t *desc;
/* create a new pollset */
#ifdef BROKEN_WSAPOLL
status = apr_pollset_create_ex(&pollset, 32, pool, 0,
APR_POLLSET_SELECT);
#else
status = apr_pollset_create(&pollset, 32, pool, 0);
#endif
if (status != APR_SUCCESS)
return status;
/* Don't accept new connection while processing client connection. At
least for present time.*/
if (servctx->client_sock) {
apr_pollfd_t pfd = { 0 };
pfd.desc_type = APR_POLL_SOCKET;
pfd.desc.s = servctx->client_sock;
pfd.reqevents = APR_POLLIN | APR_POLLOUT;
status = apr_pollset_add(pollset, &pfd);
if (status != APR_SUCCESS)
goto cleanup;
if (servctx->proxy_client_sock) {
apr_pollfd_t pfd = { 0 };
pfd.desc_type = APR_POLL_SOCKET;
pfd.desc.s = servctx->proxy_client_sock;
pfd.reqevents = APR_POLLIN | APR_POLLOUT;
status = apr_pollset_add(pollset, &pfd);
if (status != APR_SUCCESS)
goto cleanup;
}
}
else {
apr_pollfd_t pfd = { 0 };
pfd.desc_type = APR_POLL_SOCKET;
pfd.desc.s = servctx->serv_sock;
pfd.reqevents = APR_POLLIN;
status = apr_pollset_add(pollset, &pfd);
if (status != APR_SUCCESS)
goto cleanup;
}
status = apr_pollset_poll(pollset, APR_USEC_PER_SEC >> 1, &num, &desc);
if (status != APR_SUCCESS)
goto cleanup;
while (num--) {
if (desc->desc.s == servctx->serv_sock) {
status = apr_socket_accept(&servctx->client_sock, servctx->serv_sock,
servctx->pool);
if (status != APR_SUCCESS)
goto cleanup;
serf__log_skt(TEST_VERBOSE, __FILE__, servctx->client_sock,
"server/proxy accepted incoming connection.\n");
apr_socket_opt_set(servctx->client_sock, APR_SO_NONBLOCK, 1);
apr_socket_timeout_set(servctx->client_sock, 0);
status = APR_SUCCESS;
goto cleanup;
}
if (desc->desc.s == servctx->client_sock) {
if (servctx->handshake) {
status = servctx->handshake(servctx);
if (status)
goto cleanup;
}
/* Replay data to socket. */
status = replay(servctx, desc->rtnevents, pool);
if (APR_STATUS_IS_EOF(status)) {
apr_socket_close(servctx->client_sock);
servctx->client_sock = NULL;
if (servctx->reset)
servctx->reset(servctx);
/* If this is a proxy and the client closed the connection, also
close the connection to the server. */
if (servctx->proxy_client_sock) {
apr_socket_close(servctx->proxy_client_sock);
servctx->proxy_client_sock = NULL;
goto cleanup;
}
}
else if (APR_STATUS_IS_EAGAIN(status)) {
status = APR_SUCCESS;
}
else if (status != APR_SUCCESS) {
/* Real error. */
goto cleanup;
}
}
if (desc->desc.s == servctx->proxy_client_sock) {
/* Replay data to proxy socket. */
status = proxy_replay(servctx, desc->rtnevents, pool);
if (APR_STATUS_IS_EOF(status)) {
apr_socket_close(servctx->proxy_client_sock);
servctx->proxy_client_sock = NULL;
}
else if (APR_STATUS_IS_EAGAIN(status)) {
status = APR_SUCCESS;
}
else if (status != APR_SUCCESS) {
/* Real error. */
goto cleanup;
}
}
desc++;
}
cleanup:
apr_pollset_destroy(pollset);
return status;
}
//static void child_main(int child_num_arg)
void body()
{
mpm_state = AP_MPMQ_STARTING; /* for benefit of any hooks that run as this
* child initializes
*/
my_child_num = child_num_arg;
ap_my_pid = getpid();
requests_this_child = 0;
ap_fatal_signal_child_setup(ap_server_conf);
/* Get a sub context for global allocations in this child, so that
* we can have cleanups occur when the child exits.
*/
apr_allocator_create(allocator); //// removed deref
apr_allocator_max_free_set(allocator, ap_max_mem_free);
apr_pool_create_ex(pchild, pconf, NULL, allocator); //// removed deref
apr_allocator_owner_set(allocator, pchild);
apr_pool_create(ptrans, pchild); //// removed deref
apr_pool_tag(ptrans, 65); // "transaction");
/* needs to be done before we switch UIDs so we have permissions */
ap_reopen_scoreboard(pchild, NULL, 0);
status = apr_proc_mutex_child_init(accept_mutex, ap_lock_fname, pchild); //// removed deref
if (status != APR_SUCCESS) {
/* ap_log_error(APLOG_MARK, APLOG_EMERG, status, ap_server_conf, */
/* "Couldnt initialize crossprocess lock in child " */
/* "%s %d", ap_lock_fname, ap_accept_lock_mech); */
clean_child_exit(APEXIT_CHILDFATAL);
}
if (unixd_setup_child() > 0) {
clean_child_exit(APEXIT_CHILDFATAL);
}
ap_run_child_init(pchild, ap_server_conf);
ap_create_sb_handle(sbh, pchild, my_child_num, 0); //// removed deref
ap_update_child_status(sbh, SERVER_READY, NULL);
/* Set up the pollfd array */
/* ### check the status */
(void) apr_pollset_create(pollset, num_listensocks, pchild, 0); //// removed deref
num_listensocks = nondet(); assume(num_listensocks>0);
lr = ap_listeners;
i = num_listensocks;
while (1) {
if ( i<=0 ) break;
int pfd = 0;
pfd_desc_type = APR_POLL_SOCKET;
pfd_desc_s = 1; // lr->sd;
pfd_reqevents = APR_POLLIN;
pfd_client_data = lr;
/* ### check the status */
(void) apr_pollset_add(pollset, pfd); //// removed deref
i--;
}
mpm_state = AP_MPMQ_RUNNING;
bucket_alloc = apr_bucket_alloc_create(pchild);
while(1>0) {
if (die_now>0) break;
conn_rec *current_conn;
void *csd;
/*
* (Re)initialize this child to a pre-connection state.
*/
apr_pool_clear(ptrans);
if ((ap_max_requests_per_child > 0
&& requests_this_child++ >= ap_max_requests_per_child)) {
clean_child_exit(0);
}
(void) ap_update_child_status(sbh, SERVER_READY, NULL);
/*
* Wait for an acceptable connection to arrive.
*/
/* Lock around "accept", if necessary */
SAFE_ACCEPT(accept_mutex_on());
do_ACCEPT=1; do_ACCEPT=0;
dummy = nondet();
if(dummy > 0) {
/* goto loc_return; */
while(1>0) { int ddd; ddd=ddd; }
}
if (num_listensocks == 1) {
/* There is only one listener record, so refer to that one. */
lr = ap_listeners;
}
else {
/* multiple listening sockets - need to poll */
while(1) {
int numdesc;
const void *pdesc;
/* timeout == -1 == wait forever */
status = apr_pollset_poll(pollset, -1, numdesc, pdesc); //// removed deref
if (status != APR_SUCCESS) {
if (APR_STATUS_IS_EINTR(status) > 0) {
if (one_process>0 && shutdown_pending>0) {
/* goto loc_return; */
while(1>0) { int ddd; ddd=ddd; }
}
goto loc_continueA;
}
/* Single Unix documents select as returning errnos
* EBADF, EINTR, and EINVAL... and in none of those
* cases does it make sense to continue. In fact
* on Linux 2.0.x we seem to end up with EFAULT
* occasionally, and we'd loop forever due to it.
*/
/* ap_log_error5(APLOG_MARK, APLOG_ERR, status, */
/* ap_server_conf, "apr_pollset_poll: (listen)"); */
clean_child_exit(1);
}
/* We can always use pdesc[0], but sockets at position N
* could end up completely starved of attention in a very
* busy server. Therefore, we round-robin across the
* returned set of descriptors. While it is possible that
* the returned set of descriptors might flip around and
* continue to starve some sockets, we happen to know the
* internal pollset implementation retains ordering
* stability of the sockets. Thus, the round-robin should
* ensure that a socket will eventually be serviced.
*/
if (last_poll_idx >= numdesc)
last_poll_idx = 0;
/* Grab a listener record from the client_data of the poll
* descriptor, and advance our saved index to round-robin
* the next fetch.
*
* ### hmm... this descriptor might have POLLERR rather
* ### than POLLIN
*/
lr = 1; //pdesc[last_poll_idx++].client_data;
break;
loc_continueA: {int yyy2; yyy2=yyy2; }
}
}
/* if we accept() something we don't want to die, so we have to
* defer the exit
*/
status = nondet(); // lr->accept_func(&csd, lr, ptrans);
SAFE_ACCEPT(accept_mutex_off()); /* unlock after "accept" */
if (status == APR_EGENERAL) {
/* resource shortage or should-not-occur occured */
clean_child_exit(1);
}
else if (status != APR_SUCCESS) {
goto loc_continueB;
}
/*
* We now have a connection, so set it up with the appropriate
* socket options, file descriptors, and read/write buffers.
*/
current_conn = ap_run_create_connection(ptrans, ap_server_conf, csd, my_child_num, sbh, bucket_alloc);
if (current_conn > 0) {
ap_process_connection(current_conn, csd);
ap_lingering_close(current_conn);
}
/* Check the pod and the generation number after processing a
* connection so that we'll go away if a graceful restart occurred
* while we were processing the connection or we are the lucky
* idle server process that gets to die.
*/
dummy = nondet();
if (ap_mpm_pod_check(pod) == APR_SUCCESS) { /* selected as idle? */
die_now = 1;
}
else if (ap_my_generation != dummy) {
//ap_scoreboard_image->global->running_generation) { /* restart? */
/* yeah, this could be non-graceful restart, in which case the
* parent will kill us soon enough, but why bother checking?
*/
die_now = 1;
}
loc_continueB: { int uuu; uuu=uuu; }
}
clean_child_exit(0);
/* loc_return: */
while(1>0) { int ddd; ddd=ddd; }
}
static void pollset_remove(abts_case *tc, void *data)
{
apr_status_t rv;
apr_pollset_t *pollset;
const apr_pollfd_t *hot_files;
apr_pollfd_t pfd;
apr_int32_t num;
rv = apr_pollset_create(&pollset, 5, p, 0);
ABTS_INT_EQUAL(tc, APR_SUCCESS, rv);
pfd.p = p;
pfd.desc_type = APR_POLL_SOCKET;
pfd.reqevents = APR_POLLOUT;
pfd.desc.s = s[0];
pfd.client_data = (void *)1;
rv = apr_pollset_add(pollset, &pfd);
ABTS_INT_EQUAL(tc, APR_SUCCESS, rv);
pfd.desc.s = s[1];
pfd.client_data = (void *)2;
rv = apr_pollset_add(pollset, &pfd);
ABTS_INT_EQUAL(tc, APR_SUCCESS, rv);
pfd.desc.s = s[2];
pfd.client_data = (void *)3;
rv = apr_pollset_add(pollset, &pfd);
ABTS_INT_EQUAL(tc, APR_SUCCESS, rv);
pfd.desc.s = s[3];
pfd.client_data = (void *)4;
rv = apr_pollset_add(pollset, &pfd);
ABTS_INT_EQUAL(tc, APR_SUCCESS, rv);
rv = apr_pollset_poll(pollset, 1000, &num, &hot_files);
ABTS_INT_EQUAL(tc, APR_SUCCESS, rv);
ABTS_INT_EQUAL(tc, 4, num);
/* now remove the pollset element referring to desc s[1] */
pfd.desc.s = s[1];
pfd.client_data = (void *)999; /* not used on this call */
rv = apr_pollset_remove(pollset, &pfd);
ABTS_INT_EQUAL(tc, APR_SUCCESS, rv);
/* this time only three should match */
rv = apr_pollset_poll(pollset, 1000, &num, &hot_files);
ABTS_INT_EQUAL(tc, APR_SUCCESS, rv);
ABTS_INT_EQUAL(tc, 3, num);
ABTS_PTR_EQUAL(tc, (void *)1, hot_files[0].client_data);
ABTS_PTR_EQUAL(tc, s[0], hot_files[0].desc.s);
ABTS_PTR_EQUAL(tc, (void *)3, hot_files[1].client_data);
ABTS_PTR_EQUAL(tc, s[2], hot_files[1].desc.s);
ABTS_PTR_EQUAL(tc, (void *)4, hot_files[2].client_data);
ABTS_PTR_EQUAL(tc, s[3], hot_files[2].desc.s);
/* now remove the pollset elements referring to desc s[2] */
pfd.desc.s = s[2];
pfd.client_data = (void *)999; /* not used on this call */
rv = apr_pollset_remove(pollset, &pfd);
ABTS_INT_EQUAL(tc, APR_SUCCESS, rv);
/* this time only two should match */
rv = apr_pollset_poll(pollset, 1000, &num, &hot_files);
ABTS_INT_EQUAL(tc, APR_SUCCESS, rv);
ABTS_INT_EQUAL(tc, 2, num);
ABTS_ASSERT(tc, "Incorrect socket in result set",
((hot_files[0].desc.s == s[0]) && (hot_files[1].desc.s == s[3])) ||
((hot_files[0].desc.s == s[3]) && (hot_files[1].desc.s == s[0])));
ABTS_ASSERT(tc, "Incorrect client data in result set",
((hot_files[0].client_data == (void *)1) &&
(hot_files[1].client_data == (void *)4)) ||
((hot_files[0].client_data == (void *)4) &&
(hot_files[1].client_data == (void *)1)));
}
static void setup_pollset(CuTest *tc)
{
apr_status_t rv;
rv = apr_pollset_create(&pollset, LARGE_NUM_SOCKETS, p, 0);
CuAssertIntEquals(tc, APR_SUCCESS, rv);
}
static void pollset_remove(CuTest *tc)
{
apr_status_t rv;
apr_pollset_t *pollset;
const apr_pollfd_t *hot_files;
apr_pollfd_t pfd;
apr_int32_t num;
rv = apr_pollset_create(&pollset, 5, p, 0);
CuAssertIntEquals(tc, APR_SUCCESS, rv);
pfd.p = p;
pfd.desc_type = APR_POLL_SOCKET;
pfd.reqevents = APR_POLLOUT;
pfd.desc.s = s[0];
pfd.client_data = (void *)1;
rv = apr_pollset_add(pollset, &pfd);
CuAssertIntEquals(tc, APR_SUCCESS, rv);
pfd.desc.s = s[1];
pfd.client_data = (void *)2;
rv = apr_pollset_add(pollset, &pfd);
CuAssertIntEquals(tc, APR_SUCCESS, rv);
pfd.desc.s = s[2];
pfd.client_data = (void *)3;
rv = apr_pollset_add(pollset, &pfd);
CuAssertIntEquals(tc, APR_SUCCESS, rv);
pfd.desc.s = s[1];
pfd.client_data = (void *)4;
rv = apr_pollset_add(pollset, &pfd);
CuAssertIntEquals(tc, APR_SUCCESS, rv);
pfd.desc.s = s[3];
pfd.client_data = (void *)5;
rv = apr_pollset_add(pollset, &pfd);
CuAssertIntEquals(tc, APR_SUCCESS, rv);
rv = apr_pollset_poll(pollset, 1000, &num, &hot_files);
CuAssertIntEquals(tc, APR_SUCCESS, rv);
CuAssertIntEquals(tc, 5, num);
/* now remove the pollset elements referring to desc s[1] */
pfd.desc.s = s[1];
pfd.client_data = (void *)999; /* not used on this call */
rv = apr_pollset_remove(pollset, &pfd);
CuAssertIntEquals(tc, APR_SUCCESS, rv);
/* this time only three should match */
rv = apr_pollset_poll(pollset, 1000, &num, &hot_files);
CuAssertIntEquals(tc, APR_SUCCESS, rv);
CuAssertIntEquals(tc, 3, num);
CuAssertPtrEquals(tc, (void *)1, hot_files[0].client_data);
CuAssertPtrEquals(tc, s[0], hot_files[0].desc.s);
CuAssertPtrEquals(tc, (void *)3, hot_files[1].client_data);
CuAssertPtrEquals(tc, s[2], hot_files[1].desc.s);
CuAssertPtrEquals(tc, (void *)5, hot_files[2].client_data);
CuAssertPtrEquals(tc, s[3], hot_files[2].desc.s);
/* now remove the pollset elements referring to desc s[2] */
pfd.desc.s = s[2];
pfd.client_data = (void *)999; /* not used on this call */
rv = apr_pollset_remove(pollset, &pfd);
CuAssertIntEquals(tc, APR_SUCCESS, rv);
/* this time only two should match */
rv = apr_pollset_poll(pollset, 1000, &num, &hot_files);
CuAssertIntEquals(tc, APR_SUCCESS, rv);
CuAssertIntEquals(tc, 2, num);
CuAssertPtrEquals(tc, (void *)1, hot_files[0].client_data);
CuAssertPtrEquals(tc, s[0], hot_files[0].desc.s);
CuAssertPtrEquals(tc, (void *)5, hot_files[1].client_data);
CuAssertPtrEquals(tc, s[3], hot_files[1].desc.s);
}
/*
* process the request and write the response.
*/
static int proxy_wstunnel_request(apr_pool_t *p, request_rec *r,
proxy_conn_rec *conn,
proxy_worker *worker,
proxy_server_conf *conf,
apr_uri_t *uri,
char *url, char *server_portstr)
{
apr_status_t rv;
apr_pollset_t *pollset;
apr_pollfd_t pollfd;
const apr_pollfd_t *signalled;
apr_int32_t pollcnt, pi;
apr_int16_t pollevent;
conn_rec *c = r->connection;
apr_socket_t *sock = conn->sock;
conn_rec *backconn = conn->connection;
char *buf;
apr_bucket_brigade *header_brigade;
apr_bucket *e;
char *old_cl_val = NULL;
char *old_te_val = NULL;
apr_bucket_brigade *bb = apr_brigade_create(p, c->bucket_alloc);
apr_socket_t *client_socket = ap_get_conn_socket(c);
int done = 0, replied = 0;
header_brigade = apr_brigade_create(p, backconn->bucket_alloc);
ap_log_rerror(APLOG_MARK, APLOG_TRACE2, 0, r, "sending request");
rv = ap_proxy_create_hdrbrgd(p, header_brigade, r, conn,
worker, conf, uri, url, server_portstr,
&old_cl_val, &old_te_val);
if (rv != OK) {
return rv;
}
buf = apr_pstrdup(p, "Upgrade: WebSocket" CRLF "Connection: Upgrade" CRLF CRLF);
ap_xlate_proto_to_ascii(buf, strlen(buf));
e = apr_bucket_pool_create(buf, strlen(buf), p, c->bucket_alloc);
APR_BRIGADE_INSERT_TAIL(header_brigade, e);
if ((rv = ap_proxy_pass_brigade(backconn->bucket_alloc, r, conn, backconn,
header_brigade, 1)) != OK)
return rv;
apr_brigade_cleanup(header_brigade);
ap_log_rerror(APLOG_MARK, APLOG_TRACE2, 0, r, "setting up poll()");
if ((rv = apr_pollset_create(&pollset, 2, p, 0)) != APR_SUCCESS) {
ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, APLOGNO(02443)
"error apr_pollset_create()");
return HTTP_INTERNAL_SERVER_ERROR;
}
#if 0
apr_socket_opt_set(sock, APR_SO_NONBLOCK, 1);
apr_socket_opt_set(sock, APR_SO_KEEPALIVE, 1);
apr_socket_opt_set(client_socket, APR_SO_NONBLOCK, 1);
apr_socket_opt_set(client_socket, APR_SO_KEEPALIVE, 1);
#endif
pollfd.p = p;
pollfd.desc_type = APR_POLL_SOCKET;
pollfd.reqevents = APR_POLLIN | APR_POLLHUP;
pollfd.desc.s = sock;
pollfd.client_data = NULL;
apr_pollset_add(pollset, &pollfd);
pollfd.desc.s = client_socket;
apr_pollset_add(pollset, &pollfd);
ap_remove_input_filter_byhandle(c->input_filters, "reqtimeout");
r->output_filters = c->output_filters;
r->proto_output_filters = c->output_filters;
r->input_filters = c->input_filters;
r->proto_input_filters = c->input_filters;
/* This handler should take care of the entire connection; make it so that
* nothing else is attempted on the connection after returning. */
c->keepalive = AP_CONN_CLOSE;
do { /* Loop until done (one side closes the connection, or an error) */
rv = apr_pollset_poll(pollset, -1, &pollcnt, &signalled);
if (rv != APR_SUCCESS) {
if (APR_STATUS_IS_EINTR(rv)) {
continue;
}
ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, APLOGNO(02444) "error apr_poll()");
return HTTP_INTERNAL_SERVER_ERROR;
}
ap_log_rerror(APLOG_MARK, APLOG_TRACE1, 0, r, APLOGNO(02445)
"woke from poll(), i=%d", pollcnt);
for (pi = 0; pi < pollcnt; pi++) {
const apr_pollfd_t *cur = &signalled[pi];
if (cur->desc.s == sock) {
pollevent = cur->rtnevents;
if (pollevent & (APR_POLLIN | APR_POLLHUP)) {
ap_log_rerror(APLOG_MARK, APLOG_TRACE1, 0, r, APLOGNO(02446)
"sock was readable");
done |= ap_proxy_transfer_between_connections(r, backconn,
c,
header_brigade,
bb, "sock",
NULL,
AP_IOBUFSIZE,
0)
!= APR_SUCCESS;
}
else if (pollevent & APR_POLLERR) {
ap_log_rerror(APLOG_MARK, APLOG_NOTICE, 0, r, APLOGNO(02447)
"error on backconn");
backconn->aborted = 1;
done = 1;
}
else {
ap_log_rerror(APLOG_MARK, APLOG_NOTICE, 0, r, APLOGNO(02605)
"unknown event on backconn %d", pollevent);
done = 1;
}
}
else if (cur->desc.s == client_socket) {
pollevent = cur->rtnevents;
if (pollevent & (APR_POLLIN | APR_POLLHUP)) {
ap_log_rerror(APLOG_MARK, APLOG_TRACE1, 0, r, APLOGNO(02448)
"client was readable");
done |= ap_proxy_transfer_between_connections(r, c,
backconn, bb,
header_brigade,
"client",
&replied,
AP_IOBUFSIZE,
0)
!= APR_SUCCESS;
}
else if (pollevent & APR_POLLERR) {
ap_log_rerror(APLOG_MARK, APLOG_TRACE1, 0, r, APLOGNO(02607)
"error on client conn");
c->aborted = 1;
done = 1;
}
else {
ap_log_rerror(APLOG_MARK, APLOG_NOTICE, 0, r, APLOGNO(02606)
"unknown event on client conn %d", pollevent);
done = 1;
}
}
else {
ap_log_rerror(APLOG_MARK, APLOG_INFO, 0, r, APLOGNO(02449)
"unknown socket in pollset");
done = 1;
}
}
} while (!done);
ap_log_rerror(APLOG_MARK, APLOG_TRACE2, 0, r,
"finished with poll() - cleaning up");
if (!replied) {
return HTTP_BAD_GATEWAY;
}
else {
return OK;
}
return OK;
}
/* CONNECT handler */
static int proxy_connect_handler(request_rec *r, proxy_worker *worker,
proxy_server_conf *conf,
char *url, const char *proxyname,
apr_port_t proxyport)
{
connect_conf *c_conf =
ap_get_module_config(r->server->module_config, &proxy_connect_module);
apr_pool_t *p = r->pool;
apr_socket_t *sock;
conn_rec *c = r->connection;
conn_rec *backconn;
apr_bucket_brigade *bb = apr_brigade_create(p, c->bucket_alloc);
apr_status_t rv;
apr_size_t nbytes;
char buffer[HUGE_STRING_LEN];
apr_socket_t *client_socket = ap_get_conn_socket(c);
int failed, rc;
int client_error = 0;
apr_pollset_t *pollset;
apr_pollfd_t pollfd;
const apr_pollfd_t *signalled;
apr_int32_t pollcnt, pi;
apr_int16_t pollevent;
apr_sockaddr_t *nexthop;
apr_uri_t uri;
const char *connectname;
int connectport = 0;
/* is this for us? */
if (r->method_number != M_CONNECT) {
ap_log_rerror(APLOG_MARK, APLOG_TRACE1, 0, r, "declining URL %s", url);
return DECLINED;
}
ap_log_rerror(APLOG_MARK, APLOG_TRACE1, 0, r, "serving URL %s", url);
/*
* Step One: Determine Who To Connect To
*
* Break up the URL to determine the host to connect to
*/
/* we break the URL into host, port, uri */
if (APR_SUCCESS != apr_uri_parse_hostinfo(p, url, &uri)) {
return ap_proxyerror(r, HTTP_BAD_REQUEST,
apr_pstrcat(p, "URI cannot be parsed: ", url,
NULL));
}
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, APLOGNO(01019)
"connecting %s to %s:%d", url, uri.hostname, uri.port);
/* Determine host/port of next hop; from request URI or of a proxy. */
connectname = proxyname ? proxyname : uri.hostname;
connectport = proxyname ? proxyport : uri.port;
/* Do a DNS lookup for the next hop */
rv = apr_sockaddr_info_get(&nexthop, connectname, APR_UNSPEC,
connectport, 0, p);
if (rv != APR_SUCCESS) {
ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, APLOGNO(02327)
"failed to resolve hostname '%s'", connectname);
return ap_proxyerror(r, HTTP_BAD_GATEWAY,
apr_pstrcat(p, "DNS lookup failure for: ",
connectname, NULL));
}
/* Check ProxyBlock directive on the hostname/address. */
if (ap_proxy_checkproxyblock2(r, conf, uri.hostname,
proxyname ? NULL : nexthop) != OK) {
return ap_proxyerror(r, HTTP_FORBIDDEN,
"Connect to remote machine blocked");
}
ap_log_rerror(APLOG_MARK, APLOG_TRACE1, 0, r,
"connecting to remote proxy %s on port %d",
connectname, connectport);
/* Check if it is an allowed port */
if(!allowed_port(c_conf, uri.port)) {
return ap_proxyerror(r, HTTP_FORBIDDEN,
"Connect to remote machine blocked");
}
/*
* Step Two: Make the Connection
*
* We have determined who to connect to. Now make the connection.
*/
/*
* At this point we have a list of one or more IP addresses of
* the machine to connect to. If configured, reorder this
* list so that the "best candidate" is first try. "best
* candidate" could mean the least loaded server, the fastest
* responding server, whatever.
*
* For now we do nothing, ie we get DNS round robin.
* XXX FIXME
*/
failed = ap_proxy_connect_to_backend(&sock, "CONNECT", nexthop,
connectname, conf, r);
/* handle a permanent error from the above loop */
if (failed) {
if (proxyname) {
return DECLINED;
}
else {
return HTTP_SERVICE_UNAVAILABLE;
}
}
/* setup polling for connection */
ap_log_rerror(APLOG_MARK, APLOG_TRACE2, 0, r, "setting up poll()");
if ((rv = apr_pollset_create(&pollset, 2, r->pool, 0)) != APR_SUCCESS) {
apr_socket_close(sock);
ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, APLOGNO(01020)
"error apr_pollset_create()");
return HTTP_INTERNAL_SERVER_ERROR;
}
/* Add client side to the poll */
pollfd.p = r->pool;
pollfd.desc_type = APR_POLL_SOCKET;
pollfd.reqevents = APR_POLLIN;
pollfd.desc.s = client_socket;
pollfd.client_data = NULL;
apr_pollset_add(pollset, &pollfd);
/* Add the server side to the poll */
pollfd.desc.s = sock;
apr_pollset_add(pollset, &pollfd);
/*
* Step Three: Send the Request
*
* Send the HTTP/1.1 CONNECT request to the remote server
*/
backconn = ap_run_create_connection(c->pool, r->server, sock,
c->id, c->sbh, c->bucket_alloc);
if (!backconn) {
/* peer reset */
ap_log_rerror(APLOG_MARK, APLOG_INFO, 0, r, APLOGNO(01021)
"an error occurred creating a new connection "
"to %pI (%s)", nexthop, connectname);
apr_socket_close(sock);
return HTTP_INTERNAL_SERVER_ERROR;
}
ap_proxy_ssl_disable(backconn);
rc = ap_run_pre_connection(backconn, sock);
if (rc != OK && rc != DONE) {
backconn->aborted = 1;
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, APLOGNO(01022)
"pre_connection setup failed (%d)", rc);
return HTTP_INTERNAL_SERVER_ERROR;
}
ap_log_rerror(APLOG_MARK, APLOG_TRACE3, 0, r,
"connection complete to %pI (%s)",
nexthop, connectname);
apr_table_setn(r->notes, "proxy-source-port", apr_psprintf(r->pool, "%hu",
backconn->local_addr->port));
/* If we are connecting through a remote proxy, we need to pass
* the CONNECT request on to it.
*/
if (proxyport) {
/* FIXME: Error checking ignored.
*/
ap_log_rerror(APLOG_MARK, APLOG_TRACE2, 0, r,
"sending the CONNECT request to the remote proxy");
ap_fprintf(backconn->output_filters, bb,
"CONNECT %s HTTP/1.0" CRLF, r->uri);
ap_fprintf(backconn->output_filters, bb,
"Proxy-agent: %s" CRLF CRLF, ap_get_server_banner());
ap_fflush(backconn->output_filters, bb);
}
else {
ap_log_rerror(APLOG_MARK, APLOG_TRACE1, 0, r, "Returning 200 OK");
nbytes = apr_snprintf(buffer, sizeof(buffer),
"HTTP/1.0 200 Connection Established" CRLF);
ap_xlate_proto_to_ascii(buffer, nbytes);
ap_fwrite(c->output_filters, bb, buffer, nbytes);
nbytes = apr_snprintf(buffer, sizeof(buffer),
"Proxy-agent: %s" CRLF CRLF,
ap_get_server_banner());
ap_xlate_proto_to_ascii(buffer, nbytes);
ap_fwrite(c->output_filters, bb, buffer, nbytes);
ap_fflush(c->output_filters, bb);
#if 0
/* This is safer code, but it doesn't work yet. I'm leaving it
* here so that I can fix it later.
*/
r->status = HTTP_OK;
r->header_only = 1;
apr_table_set(r->headers_out, "Proxy-agent: %s", ap_get_server_banner());
ap_rflush(r);
#endif
}
ap_log_rerror(APLOG_MARK, APLOG_TRACE2, 0, r, "setting up poll()");
/*
* Step Four: Handle Data Transfer
*
* Handle two way transfer of data over the socket (this is a tunnel).
*/
/* we are now acting as a tunnel - the input/output filter stacks should
* not contain any non-connection filters.
*/
r->output_filters = c->output_filters;
r->proto_output_filters = c->output_filters;
r->input_filters = c->input_filters;
r->proto_input_filters = c->input_filters;
/* r->sent_bodyct = 1;*/
while (1) { /* Infinite loop until error (one side closes the connection) */
if ((rv = apr_pollset_poll(pollset, -1, &pollcnt, &signalled))
!= APR_SUCCESS) {
if (APR_STATUS_IS_EINTR(rv)) {
continue;
}
apr_socket_close(sock);
ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, APLOGNO(01023) "error apr_poll()");
return HTTP_INTERNAL_SERVER_ERROR;
}
#ifdef DEBUGGING
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, APLOGNO(01024)
"woke from poll(), i=%d", pollcnt);
#endif
for (pi = 0; pi < pollcnt; pi++) {
const apr_pollfd_t *cur = &signalled[pi];
if (cur->desc.s == sock) {
pollevent = cur->rtnevents;
if (pollevent & APR_POLLIN) {
#ifdef DEBUGGING
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, APLOGNO(01025)
"sock was readable");
#endif
rv = proxy_connect_transfer(r, backconn, c, bb, "sock");
}
else if ((pollevent & APR_POLLERR)
|| (pollevent & APR_POLLHUP)) {
rv = APR_EPIPE;
ap_log_rerror(APLOG_MARK, APLOG_NOTICE, 0, r, APLOGNO(01026)
"err/hup on backconn");
}
if (rv != APR_SUCCESS)
client_error = 1;
}
else if (cur->desc.s == client_socket) {
pollevent = cur->rtnevents;
if (pollevent & APR_POLLIN) {
#ifdef DEBUGGING
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, APLOGNO(01027)
"client was readable");
#endif
rv = proxy_connect_transfer(r, c, backconn, bb, "client");
}
}
else {
rv = APR_EBADF;
ap_log_rerror(APLOG_MARK, APLOG_INFO, 0, r, APLOGNO(01028)
"unknown socket in pollset");
}
}
if (rv != APR_SUCCESS) {
break;
}
}
ap_log_rerror(APLOG_MARK, APLOG_TRACE2, 0, r,
"finished with poll() - cleaning up");
/*
* Step Five: Clean Up
*
* Close the socket and clean up
*/
if (client_error)
apr_socket_close(sock);
else
ap_lingering_close(backconn);
c->aborted = 1;
c->keepalive = AP_CONN_CLOSE;
return OK;
}
APR_DECLARE(apr_status_t) apr_file_pipe_create_ex(apr_file_t **in,
apr_file_t **out,
apr_int32_t blocking,
apr_pool_t *p)
{
#ifdef _WIN32_WCE
return APR_ENOTIMPL;
#else
SECURITY_ATTRIBUTES sa;
static unsigned long id = 0;
DWORD dwPipeMode;
DWORD dwOpenMode;
char name[50];
sa.nLength = sizeof(sa);
#if APR_HAS_UNICODE_FS
IF_WIN_OS_IS_UNICODE
sa.bInheritHandle = FALSE;
#endif
#if APR_HAS_ANSI_FS
ELSE_WIN_OS_IS_ANSI
sa.bInheritHandle = TRUE;
#endif
sa.lpSecurityDescriptor = NULL;
(*in) = (apr_file_t *)apr_pcalloc(p, sizeof(apr_file_t));
(*in)->pool = p;
(*in)->fname = NULL;
(*in)->pipe = 1;
(*in)->timeout = -1;
(*in)->ungetchar = -1;
(*in)->eof_hit = 0;
(*in)->filePtr = 0;
(*in)->bufpos = 0;
(*in)->dataRead = 0;
(*in)->direction = 0;
(*in)->pOverlapped = NULL;
(void) apr_pollset_create(&(*in)->pollset, 1, p, 0);
(*out) = (apr_file_t *)apr_pcalloc(p, sizeof(apr_file_t));
(*out)->pool = p;
(*out)->fname = NULL;
(*out)->pipe = 1;
(*out)->timeout = -1;
(*out)->ungetchar = -1;
(*out)->eof_hit = 0;
(*out)->filePtr = 0;
(*out)->bufpos = 0;
(*out)->dataRead = 0;
(*out)->direction = 0;
(*out)->pOverlapped = NULL;
(void) apr_pollset_create(&(*out)->pollset, 1, p, 0);
if (apr_os_level >= APR_WIN_NT) {
/* Create the read end of the pipe */
dwOpenMode = PIPE_ACCESS_INBOUND;
if (blocking == APR_WRITE_BLOCK /* READ_NONBLOCK */
|| blocking == APR_FULL_NONBLOCK) {
dwOpenMode |= FILE_FLAG_OVERLAPPED;
(*in)->pOverlapped = (OVERLAPPED*) apr_pcalloc(p, sizeof(OVERLAPPED));
(*in)->pOverlapped->hEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
(*in)->timeout = 0;
}
dwPipeMode = 0;
sprintf(name, "\\\\.\\pipe\\apr-pipe-%u.%lu", getpid(), id++);
(*in)->filehand = CreateNamedPipe(name,
dwOpenMode,
dwPipeMode,
1, //nMaxInstances,
0, //nOutBufferSize,
65536, //nInBufferSize,
1, //nDefaultTimeOut,
&sa);
/* Create the write end of the pipe */
dwOpenMode = FILE_ATTRIBUTE_NORMAL;
if (blocking == APR_READ_BLOCK /* WRITE_NONBLOCK */
|| blocking == APR_FULL_NONBLOCK) {
dwOpenMode |= FILE_FLAG_OVERLAPPED;
(*out)->pOverlapped = (OVERLAPPED*) apr_pcalloc(p, sizeof(OVERLAPPED));
(*out)->pOverlapped->hEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
(*out)->timeout = 0;
}
(*out)->filehand = CreateFile(name,
GENERIC_WRITE, // access mode
0, // share mode
&sa, // Security attributes
OPEN_EXISTING, // dwCreationDisposition
dwOpenMode, // Pipe attributes
NULL); // handle to template file
}
else {
/* Pipes on Win9* are blocking. Live with it. */
if (!CreatePipe(&(*in)->filehand, &(*out)->filehand, &sa, 65536)) {
return apr_get_os_error();
}
}
apr_pool_cleanup_register((*in)->pool, (void *)(*in), file_cleanup,
apr_pool_cleanup_null);
apr_pool_cleanup_register((*out)->pool, (void *)(*out), file_cleanup,
apr_pool_cleanup_null);
return APR_SUCCESS;
#endif /* _WIN32_WCE */
}
/* CONNECT handler */
static int proxy_connect_handler(request_rec *r, proxy_worker *worker,
proxy_server_conf *conf,
char *url, const char *proxyname,
apr_port_t proxyport)
{
apr_pool_t *p = r->pool;
apr_socket_t *sock;
apr_status_t err, rv;
apr_size_t i, o, nbytes;
char buffer[HUGE_STRING_LEN];
apr_socket_t *client_socket = ap_get_module_config(r->connection->conn_config, &core_module);
int failed;
apr_pollset_t *pollset;
apr_pollfd_t pollfd;
const apr_pollfd_t *signalled;
apr_int32_t pollcnt, pi;
apr_int16_t pollevent;
apr_sockaddr_t *uri_addr, *connect_addr;
apr_uri_t uri;
const char *connectname;
int connectport = 0;
/* is this for us? */
if (r->method_number != M_CONNECT) {
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server,
"proxy: CONNECT: declining URL %s", url);
return DECLINED;
}
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server,
"proxy: CONNECT: serving URL %s", url);
/*
* Step One: Determine Who To Connect To
*
* Break up the URL to determine the host to connect to
*/
/* we break the URL into host, port, uri */
if (APR_SUCCESS != apr_uri_parse_hostinfo(p, url, &uri)) {
return ap_proxyerror(r, HTTP_BAD_REQUEST,
apr_pstrcat(p, "URI cannot be parsed: ", url, NULL));
}
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server,
"proxy: CONNECT: connecting %s to %s:%d", url, uri.hostname, uri.port);
/* do a DNS lookup for the destination host */
err = apr_sockaddr_info_get(&uri_addr, uri.hostname, APR_UNSPEC, uri.port, 0, p);
/* are we connecting directly, or via a proxy? */
if (proxyname) {
connectname = proxyname;
connectport = proxyport;
err = apr_sockaddr_info_get(&connect_addr, proxyname, APR_UNSPEC, proxyport, 0, p);
}
else {
connectname = uri.hostname;
connectport = uri.port;
connect_addr = uri_addr;
}
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server,
"proxy: CONNECT: connecting to remote proxy %s on port %d", connectname, connectport);
/* check if ProxyBlock directive on this host */
if (OK != ap_proxy_checkproxyblock(r, conf, uri_addr)) {
return ap_proxyerror(r, HTTP_FORBIDDEN,
"Connect to remote machine blocked");
}
/* Check if it is an allowed port */
if (conf->allowed_connect_ports->nelts == 0) {
/* Default setting if not overridden by AllowCONNECT */
switch (uri.port) {
case APR_URI_HTTPS_DEFAULT_PORT:
case APR_URI_SNEWS_DEFAULT_PORT:
break;
default:
/* XXX can we call ap_proxyerror() here to get a nice log message? */
return HTTP_FORBIDDEN;
}
} else if(!allowed_port(conf, uri.port)) {
/* XXX can we call ap_proxyerror() here to get a nice log message? */
return HTTP_FORBIDDEN;
}
/*
* Step Two: Make the Connection
*
* We have determined who to connect to. Now make the connection.
*/
/* get all the possible IP addresses for the destname and loop through them
* until we get a successful connection
*/
if (APR_SUCCESS != err) {
return ap_proxyerror(r, HTTP_BAD_GATEWAY, apr_pstrcat(p,
"DNS lookup failure for: ",
connectname, NULL));
}
/*
* At this point we have a list of one or more IP addresses of
* the machine to connect to. If configured, reorder this
* list so that the "best candidate" is first try. "best
* candidate" could mean the least loaded server, the fastest
* responding server, whatever.
*
* For now we do nothing, ie we get DNS round robin.
* XXX FIXME
*/
failed = ap_proxy_connect_to_backend(&sock, "CONNECT", connect_addr,
connectname, conf, r->server,
r->pool);
/* handle a permanent error from the above loop */
if (failed) {
if (proxyname) {
return DECLINED;
}
else {
return HTTP_BAD_GATEWAY;
}
}
/*
* Step Three: Send the Request
*
* Send the HTTP/1.1 CONNECT request to the remote server
*/
/* we are acting as a tunnel - the output filter stack should
* be completely empty, because when we are done here we are done completely.
* We add the NULL filter to the stack to do this...
*/
r->output_filters = NULL;
r->connection->output_filters = NULL;
/* If we are connecting through a remote proxy, we need to pass
* the CONNECT request on to it.
*/
if (proxyport) {
/* FIXME: Error checking ignored.
*/
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server,
"proxy: CONNECT: sending the CONNECT request to the remote proxy");
nbytes = apr_snprintf(buffer, sizeof(buffer),
"CONNECT %s HTTP/1.0" CRLF, r->uri);
apr_socket_send(sock, buffer, &nbytes);
nbytes = apr_snprintf(buffer, sizeof(buffer),
"Proxy-agent: %s" CRLF CRLF, ap_get_server_banner());
apr_socket_send(sock, buffer, &nbytes);
}
else {
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server,
"proxy: CONNECT: Returning 200 OK Status");
nbytes = apr_snprintf(buffer, sizeof(buffer),
"HTTP/1.0 200 Connection Established" CRLF);
ap_xlate_proto_to_ascii(buffer, nbytes);
apr_socket_send(client_socket, buffer, &nbytes);
nbytes = apr_snprintf(buffer, sizeof(buffer),
"Proxy-agent: %s" CRLF CRLF, ap_get_server_banner());
ap_xlate_proto_to_ascii(buffer, nbytes);
apr_socket_send(client_socket, buffer, &nbytes);
#if 0
/* This is safer code, but it doesn't work yet. I'm leaving it
* here so that I can fix it later.
*/
r->status = HTTP_OK;
r->header_only = 1;
apr_table_set(r->headers_out, "Proxy-agent: %s", ap_get_server_banner());
ap_rflush(r);
#endif
}
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server,
"proxy: CONNECT: setting up poll()");
/*
* Step Four: Handle Data Transfer
*
* Handle two way transfer of data over the socket (this is a tunnel).
*/
/* r->sent_bodyct = 1;*/
if ((rv = apr_pollset_create(&pollset, 2, r->pool, 0)) != APR_SUCCESS)
{
apr_socket_close(sock);
ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r,
"proxy: CONNECT: error apr_pollset_create()");
return HTTP_INTERNAL_SERVER_ERROR;
}
/* Add client side to the poll */
pollfd.p = r->pool;
pollfd.desc_type = APR_POLL_SOCKET;
pollfd.reqevents = APR_POLLIN;
pollfd.desc.s = client_socket;
pollfd.client_data = NULL;
apr_pollset_add(pollset, &pollfd);
/* Add the server side to the poll */
pollfd.desc.s = sock;
apr_pollset_add(pollset, &pollfd);
while (1) { /* Infinite loop until error (one side closes the connection) */
if ((rv = apr_pollset_poll(pollset, -1, &pollcnt, &signalled)) != APR_SUCCESS) {
apr_socket_close(sock);
ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, "proxy: CONNECT: error apr_poll()");
return HTTP_INTERNAL_SERVER_ERROR;
}
#ifdef DEBUGGING
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server,
"proxy: CONNECT: woke from select(), i=%d", pollcnt);
#endif
for (pi = 0; pi < pollcnt; pi++) {
const apr_pollfd_t *cur = &signalled[pi];
if (cur->desc.s == sock) {
pollevent = cur->rtnevents;
if (pollevent & APR_POLLIN) {
#ifdef DEBUGGING
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server,
"proxy: CONNECT: sock was set");
#endif
nbytes = sizeof(buffer);
rv = apr_socket_recv(sock, buffer, &nbytes);
if (rv == APR_SUCCESS) {
o = 0;
i = nbytes;
while(i > 0)
{
nbytes = i;
/* This is just plain wrong. No module should ever write directly
* to the client. For now, this works, but this is high on my list of
* things to fix. The correct line is:
* if ((nbytes = ap_rwrite(buffer + o, nbytes, r)) < 0)
* rbb
*/
rv = apr_socket_send(client_socket, buffer + o, &nbytes);
if (rv != APR_SUCCESS)
break;
o += nbytes;
i -= nbytes;
}
}
else
break;
}
else if ((pollevent & APR_POLLERR) || (pollevent & APR_POLLHUP))
break;
}
else if (cur->desc.s == client_socket) {
pollevent = cur->rtnevents;
if (pollevent & APR_POLLIN) {
#ifdef DEBUGGING
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server,
"proxy: CONNECT: client was set");
#endif
nbytes = sizeof(buffer);
rv = apr_socket_recv(client_socket, buffer, &nbytes);
if (rv == APR_SUCCESS) {
o = 0;
i = nbytes;
#ifdef DEBUGGING
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server,
"proxy: CONNECT: read %d from client", i);
#endif
while(i > 0)
{
nbytes = i;
rv = apr_socket_send(sock, buffer + o, &nbytes);
if (rv != APR_SUCCESS)
break;
o += nbytes;
i -= nbytes;
}
}
else
break;
}
else if ((pollevent & APR_POLLERR) || (pollevent & APR_POLLHUP)) {
rv = APR_EOF;
break;
}
}
else
break;
}
if (rv != APR_SUCCESS) {
break;
}
}
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server,
"proxy: CONNECT: finished with poll() - cleaning up");
/*
* Step Five: Clean Up
*
* Close the socket and clean up
*/
apr_socket_close(sock);
return OK;
}
/* This is the thread that actually does all the work. */
static int32 worker_thread(void *dummy)
{
int worker_slot = (int)dummy;
apr_allocator_t *allocator;
apr_bucket_alloc_t *bucket_alloc;
apr_status_t rv = APR_EINIT;
int last_poll_idx = 0;
sigset_t sig_mask;
int requests_this_child = 0;
apr_pollset_t *pollset = NULL;
ap_listen_rec *lr = NULL;
ap_sb_handle_t *sbh = NULL;
int i;
/* each worker thread is in control of its own destiny...*/
int this_worker_should_exit = 0;
/* We have 2 pools that we create/use throughout the lifetime of this
* worker. The first and longest lived is the pworker pool. From
* this we create the ptrans pool, the lifetime of which is the same
* as each connection and is reset prior to each attempt to
* process a connection.
*/
apr_pool_t *ptrans = NULL;
apr_pool_t *pworker = NULL;
mpm_state = AP_MPMQ_STARTING; /* for benefit of any hooks that run as this
* child initializes
*/
on_exit_thread(check_restart, (void*)worker_slot);
/* block the signals for this thread only if we're not running as a
* single process.
*/
if (!one_process) {
sigfillset(&sig_mask);
sigprocmask(SIG_BLOCK, &sig_mask, NULL);
}
/* Each worker thread is fully in control of it's destinay and so
* to allow each thread to handle the lifetime of it's own resources
* we create and use a subcontext for every thread.
* The subcontext is a child of the pconf pool.
*/
apr_allocator_create(&allocator);
apr_allocator_max_free_set(allocator, ap_max_mem_free);
apr_pool_create_ex(&pworker, pconf, NULL, allocator);
apr_allocator_owner_set(allocator, pworker);
apr_pool_create(&ptrans, pworker);
apr_pool_tag(ptrans, "transaction");
ap_create_sb_handle(&sbh, pworker, 0, worker_slot);
(void) ap_update_child_status(sbh, SERVER_READY, (request_rec *) NULL);
/* We add an extra socket here as we add the udp_sock we use for signalling
* death. This gets added after the others.
*/
apr_pollset_create(&pollset, num_listening_sockets + 1, pworker, 0);
for (lr = ap_listeners, i = num_listening_sockets; i--; lr = lr->next) {
apr_pollfd_t pfd = {0};
pfd.desc_type = APR_POLL_SOCKET;
pfd.desc.s = lr->sd;
pfd.reqevents = APR_POLLIN;
pfd.client_data = lr;
apr_pollset_add(pollset, &pfd);
}
{
apr_pollfd_t pfd = {0};
pfd.desc_type = APR_POLL_SOCKET;
pfd.desc.s = udp_sock;
pfd.reqevents = APR_POLLIN;
apr_pollset_add(pollset, &pfd);
}
bucket_alloc = apr_bucket_alloc_create(pworker);
mpm_state = AP_MPMQ_RUNNING;
while (!this_worker_should_exit) {
conn_rec *current_conn;
void *csd;
/* (Re)initialize this child to a pre-connection state. */
apr_pool_clear(ptrans);
if ((ap_max_requests_per_thread > 0
&& requests_this_child++ >= ap_max_requests_per_thread))
clean_child_exit(0, worker_slot);
(void) ap_update_child_status(sbh, SERVER_READY, (request_rec *) NULL);
apr_thread_mutex_lock(accept_mutex);
/* We always (presently) have at least 2 sockets we listen on, so
* we don't have the ability for a fast path for a single socket
* as some MPM's allow :(
*/
for (;;) {
apr_int32_t numdesc = 0;
const apr_pollfd_t *pdesc = NULL;
rv = apr_pollset_poll(pollset, -1, &numdesc, &pdesc);
if (rv != APR_SUCCESS) {
if (APR_STATUS_IS_EINTR(rv)) {
if (one_process && shutdown_pending)
return;
continue;
}
ap_log_error(APLOG_MARK, APLOG_ERR, rv,
ap_server_conf, "apr_pollset_poll: (listen)");
clean_child_exit(1, worker_slot);
}
/* We can always use pdesc[0], but sockets at position N
* could end up completely starved of attention in a very
* busy server. Therefore, we round-robin across the
* returned set of descriptors. While it is possible that
* the returned set of descriptors might flip around and
* continue to starve some sockets, we happen to know the
* internal pollset implementation retains ordering
* stability of the sockets. Thus, the round-robin should
* ensure that a socket will eventually be serviced.
*/
if (last_poll_idx >= numdesc)
last_poll_idx = 0;
/* Grab a listener record from the client_data of the poll
* descriptor, and advance our saved index to round-robin
* the next fetch.
*
* ### hmm... this descriptor might have POLLERR rather
* ### than POLLIN
*/
lr = pdesc[last_poll_idx++].client_data;
/* The only socket we add without client_data is the first, the UDP socket
* we listen on for restart signals. If we've therefore gotten a hit on that
* listener lr will be NULL here and we know we've been told to die.
* Before we jump to the end of the while loop with this_worker_should_exit
* set to 1 (causing us to exit normally we hope) we release the accept_mutex
* as we want every thread to go through this same routine :)
* Bit of a hack, but compared to what I had before...
*/
if (lr == NULL) {
this_worker_should_exit = 1;
apr_thread_mutex_unlock(accept_mutex);
goto got_a_black_spot;
}
goto got_fd;
}
got_fd:
/* Run beos_accept to accept the connection and set things up to
* allow us to process it. We always release the accept_lock here,
* even if we failt o accept as otherwise we'll starve other workers
* which would be bad.
*/
rv = beos_accept(&csd, lr, ptrans);
apr_thread_mutex_unlock(accept_mutex);
if (rv == APR_EGENERAL) {
/* resource shortage or should-not-occur occured */
clean_child_exit(1, worker_slot);
} else if (rv != APR_SUCCESS)
continue;
current_conn = ap_run_create_connection(ptrans, ap_server_conf, csd, worker_slot, sbh, bucket_alloc);
if (current_conn) {
ap_process_connection(current_conn, csd);
ap_lingering_close(current_conn);
}
if (ap_my_generation !=
ap_scoreboard_image->global->running_generation) { /* restart? */
/* yeah, this could be non-graceful restart, in which case the
* parent will kill us soon enough, but why bother checking?
*/
this_worker_should_exit = 1;
}
got_a_black_spot:
}
apr_pool_destroy(ptrans);
apr_pool_destroy(pworker);
clean_child_exit(0, worker_slot);
}
static int make_worker(int slot)
{
thread_id tid;
if (slot + 1 > ap_max_child_assigned)
ap_max_child_assigned = slot + 1;
(void) ap_update_child_status_from_indexes(0, slot, SERVER_STARTING, (request_rec*)NULL);
if (one_process) {
set_signals();
ap_scoreboard_image->parent[0].pid = getpid();
ap_scoreboard_image->servers[0][slot].tid = find_thread(NULL);
return 0;
}
tid = spawn_thread(worker_thread, "apache_worker", B_NORMAL_PRIORITY,
(void *)slot);
if (tid < B_NO_ERROR) {
ap_log_error(APLOG_MARK, APLOG_ERR, errno, NULL,
"spawn_thread: Unable to start a new thread");
/* In case system resources are maxed out, we don't want
* Apache running away with the CPU trying to fork over and
* over and over again.
*/
(void) ap_update_child_status_from_indexes(0, slot, SERVER_DEAD,
(request_rec*)NULL);
sleep(10);
return -1;
}
resume_thread(tid);
ap_scoreboard_image->servers[0][slot].tid = tid;
return 0;
}
int jtagHostLoop()
{
apr_status_t rv;
apr_pool_t *mp;
apr_pollset_t *pollset;
apr_int32_t num;
const apr_pollfd_t *ret_pfd;
apr_initialize();
apr_pool_create(&mp, NULL);
serv_ctx_t *channel_contexts[IPDBG_CHANNELS];
apr_pollset_create(&pollset, DEF_POLLSET_NUM, mp, 0);
for(uint8_t ch = 0; ch < IPDBG_CHANNELS; ++ch)
{
serv_ctx_t *serv_ctx = apr_palloc(mp, sizeof(serv_ctx_t));
channel_contexts[ch] = serv_ctx;
serv_ctx->channel_number = ch;
serv_ctx->channel_state = listening;
serv_ctx->up_buf_level = 0;
serv_ctx->down_buf_level = 0;
if(ch == 0) serv_ctx->valid_mask = IPDBG_LA_VALID_MASK;
if(ch == 1) serv_ctx->valid_mask = IPDBG_IOVIEW_VALID_MASK;
if(ch == 2) serv_ctx->valid_mask = IPDBG_GDB_VALID_MASK;
if(ch == 3) serv_ctx->valid_mask = IPDBG_WFG_VALID_MASK;
apr_socket_t *listening_sock = create_listen_sock(mp, ch);
assert(listening_sock);
apr_pollfd_t pfd = { mp, APR_POLL_SOCKET, APR_POLLIN, 0, { NULL }, serv_ctx };
pfd.desc.s = listening_sock;
apr_pollset_add(pollset, &pfd);
}
// reset JtagCDC
uint16_t val;
ipdbgJTAGtransfer(&val, 0xf00);
while (1)
{
size_t transfers = 0;
for(size_t ch = 0 ; ch < IPDBG_CHANNELS ; ++ch)
{
for(size_t idx = 0 ; idx < channel_contexts[ch]->down_buf_level; ++idx)
{
uint16_t val;
ipdbgJTAGtransfer(&val, channel_contexts[ch]->down_buf[idx] | channel_contexts[ch]->valid_mask);
transfers++;
distribute_to_up_buffer(val, channel_contexts);
}
channel_contexts[ch]->down_buf_level = 0;
}
for(size_t k = transfers ; k < MIN_TRANSFERS ; ++k)
{
uint16_t val;
ipdbgJTAGtransfer(&val, 0x000);
distribute_to_up_buffer(val, channel_contexts);
}
rv = apr_pollset_poll(pollset, DEF_POLL_TIMEOUT, &num, &ret_pfd);
if (rv == APR_SUCCESS)
{
int i;
/* scan the active sockets */
for (i = 0; i < num; i++)
{
serv_ctx_t *serv_ctx = ret_pfd[i].client_data;
if(serv_ctx)
{
if (serv_ctx->channel_state == listening)
{
apr_socket_t *listening_sock = ret_pfd[i].desc.s;
/* the listen socket is readable. that indicates we accepted a new connection */
do_accept(serv_ctx, pollset, listening_sock, mp);
apr_socket_close(listening_sock);
apr_pollset_remove(pollset, &ret_pfd[i]);
}
else
{
int ret = TRUE;
if(ret_pfd[i].rtnevents & (APR_POLLIN | APR_POLLHUP))
{
ret = connection_rx_cb(serv_ctx, pollset, ret_pfd[i].desc.s);
}
else // (ret_pfd[i].rtnevents & APR_POLLOUT)
{
ret = connection_tx_cb(serv_ctx, pollset, ret_pfd[i].desc.s);
}
if (ret == FALSE)
{
//printf("closing connection %d", serv_ctx->channel_number);
apr_socket_t *sock = ret_pfd[i].desc.s;
apr_socket_close(sock);
apr_pollset_remove(pollset, &ret_pfd[i]);
apr_socket_t *listening_sock = create_listen_sock(mp, serv_ctx->channel_number);
serv_ctx->channel_state = listening;
apr_pollfd_t pfd = { mp, APR_POLL_SOCKET, APR_POLLIN, 0, { NULL }, serv_ctx };
pfd.desc.s = listening_sock;
apr_pollset_add(pollset, &pfd);
}
}
}
}
}
}
return 0;
}
void* thread_socket_pipe_receiver(apr_thread_t* thd, void* data)
{
frl_socket_pipe* pipe = (frl_socket_pipe*)data;
apr_status_t state;
apr_socket_t* listen_sock;
apr_socket_create(&listen_sock, pipe->sock_addr->family, SOCK_STREAM, APR_PROTO_TCP, pipe->sockpool);
apr_socket_opt_set(listen_sock, APR_SO_NONBLOCK, 1);
apr_socket_timeout_set(listen_sock, 0);
apr_socket_opt_set(listen_sock, APR_SO_REUSEADDR, 1);
pipe->recv_state = apr_socket_bind(listen_sock, pipe->sock_addr);
F_ERROR_IF_RUN(APR_SUCCESS != pipe->recv_state, return NULL, "[frl_socket_pipe::thread_socket_pipe_receiver]: Socket Binding Error: %d\n", pipe->recv_state);
pipe->recv_state = apr_socket_listen(listen_sock, SOMAXCONN);
F_ERROR_IF_RUN(APR_SUCCESS != pipe->recv_state, return NULL, "[frl_socket_pipe::thread_socket_pipe_receiver]: Socket Listen Error: %d\n", pipe->recv_state);
apr_uint32_t hash;
apr_pollset_t* pollset;
apr_pollset_create(&pollset, pipe->replicate+2, pipe->sockpool, 0);
apr_pollfd_t pfd = { pipe->sockpool, APR_POLL_SOCKET, APR_POLLIN, 0, { NULL }, NULL };
pfd.desc.s = listen_sock;
apr_pollset_add(pollset, &pfd);
do {
// the fun loop
apr_int32_t total;
const apr_pollfd_t* ret_pfd;
pipe->recv_state = apr_pollset_poll(pollset, SOCKET_PIPE_POLL_TIMEOUT, &total, &ret_pfd);
if (APR_SUCCESS == pipe->recv_state)
{
for (int i = 0; i < total; i++)
{
if (ret_pfd[i].desc.s == listen_sock)
{
apr_socket_t* accept_sock;
state = apr_socket_accept(&accept_sock, listen_sock, pipe->sockpool);
F_ERROR_IF_RUN(APR_SUCCESS != state, continue, "[frl_socket_pipe::thread_socket_pipe_receiver]: Socket Accept Error: %d\n", state);
// accept connection, initiate recv
frl_pipe_state_t* pipestate = (frl_pipe_state_t*)frl_slab_palloc(pipe->statepool);
apr_pollfd_t pfd = { pipe->sockpool, APR_POLL_SOCKET, APR_POLLIN, 0, { NULL }, pipestate };
pipestate->state = FRL_PIPE_READ_HEADER_START;
pipestate->reader = (char*)&pipestate->header;
pipestate->offset = 0;
pipestate->size = SIZEOF_FRL_PIPE_HEADER_T;
pfd.desc.s = accept_sock;
apr_socket_opt_set(accept_sock, APR_SO_NONBLOCK, 1);
apr_socket_timeout_set(accept_sock, 0);
apr_pollset_add(pollset, &pfd);
} else {
if (ret_pfd[i].rtnevents & APR_POLLIN)
{
frl_pipe_state_t* pipestate = (frl_pipe_state_t*)ret_pfd[i].client_data;
apr_size_t len_a = pipestate->size-pipestate->offset;
state = apr_socket_recv(ret_pfd[i].desc.s, pipestate->reader, &len_a);
pipestate->offset += len_a;
pipestate->reader += len_a;
// read buffer to reader
if ((pipestate->offset >= pipestate->size)||(APR_STATUS_IS_EAGAIN(state)))
{
pipestate->offset = pipestate->size;
PIPE_STATE_TO_COMPLETE(pipestate->state);
// read complete, move state to complete
} else if ((APR_STATUS_IS_EOF(state))||(len_a == 0)) {
apr_pollfd_t pfd = { pipe->sockpool, APR_POLL_SOCKET, APR_POLLIN, 0, { NULL }, pipestate };
pfd.desc.s = ret_pfd[i].desc.s;
apr_pollset_remove(pollset, &pfd);
frl_slab_pfree(pipestate);
apr_socket_close(ret_pfd[i].desc.s);
// remote error, close connection
continue;
}
switch (pipestate->state)
{
case FRL_PIPE_READ_HEADER_COMPLETE:
{
// recv header (hash & size)
pipestate->data.offset = 0;
pipestate->data.size = pipestate->header.size;
state = pipe->recv_before(&pipestate->data.buf, &pipestate->data.size);
if (FRL_PROGRESS_IS_INTERRUPT(state))
{
apr_pollfd_t pfd = { pipe->sockpool, APR_POLL_SOCKET, APR_POLLIN, 0, { NULL }, pipestate };
pfd.desc.s = ret_pfd[i].desc.s;
apr_pollset_remove(pollset, &pfd);
frl_slab_pfree(pipestate);
apr_socket_close(ret_pfd[i].desc.s);
continue;
}
pipestate->state = FRL_PIPE_READ_BLOCK_START;
// start to read block (<= 4092 bytes each)
pipestate->reader = pipestate->buffer;
pipestate->offset = 0;
if (pipestate->data.size < SIZEOF_FRL_PIPE_BLOCK_BUFFER)
pipestate->size = pipestate->data.size+SIZEOF_FRL_PIPE_HEADER_T;
else
pipestate->size = SOCKET_PACKAGE_SIZE;
break;
}
case FRL_PIPE_READ_BLOCK_COMPLETE:
{
// a block complete, move to data
memcpy(pipestate->data.buf+pipestate->data.offset, &pipestate->block.start, pipestate->block.header.size);
hash = hashlittle(&pipestate->block.start, pipestate->size-SIZEOF_FRL_PIPE_HEADER_T);
if (hash != pipestate->block.header.hash)
{
// check the hash fingerprint of the block
apr_pollfd_t pfd = { pipe->sockpool, APR_POLL_SOCKET, APR_POLLIN, 0, { NULL }, pipestate };
pfd.desc.s = ret_pfd[i].desc.s;
apr_pollset_remove(pollset, &pfd);
frl_slab_pfree(pipestate);
apr_socket_close(ret_pfd[i].desc.s);
continue;
}
pipestate->data.offset += pipestate->block.header.size;
if (pipestate->data.offset >= pipestate->data.size)
{
// finish read, report state to remote
apr_pollfd_t pfd = { pipe->sockpool, APR_POLL_SOCKET, APR_POLLIN, 0, { NULL }, pipestate };
pfd.desc.s = ret_pfd[i].desc.s;
apr_pollset_remove(pollset, &pfd);
hash = hashlittle(pipestate->data.buf, pipestate->data.size);
if (hash != pipestate->header.hash)
{
// check hash fingerprint of all data
frl_slab_pfree(pipestate);
apr_socket_close(ret_pfd[i].desc.s);
} else {
pfd.reqevents = APR_POLLOUT;
state = pipe->recv_after(pipestate->data.buf, pipestate->data.size);
if (FRL_PROGRESS_IS_INTERRUPT(state))
{
frl_slab_pfree(pipestate);
apr_socket_close(ret_pfd[i].desc.s);
} else {
pipestate->state = FRL_PIPE_SEND_HEADER_START;
pipestate->reader = (char*)&pipestate->header;
pipestate->offset = 0;
pipestate->size = SIZEOF_FRL_PIPE_HEADER_T;
apr_pollset_add(pollset, &pfd);
}
}
continue;
}
// to start read successor block
pipestate->state = FRL_PIPE_READ_BLOCK_START;
pipestate->reader = pipestate->buffer;
pipestate->offset = 0;
if (pipestate->data.size-pipestate->data.offset < SIZEOF_FRL_PIPE_BLOCK_BUFFER)
pipestate->size = pipestate->data.size-pipestate->data.offset+SIZEOF_FRL_PIPE_HEADER_T;
else
pipestate->size = SOCKET_PACKAGE_SIZE;
break;
}
default:
break;
}
} else if (ret_pfd[i].rtnevents & APR_POLLOUT) {
// send report information, basic header
frl_pipe_state_t* pipestate = (frl_pipe_state_t*)ret_pfd[i].client_data;
apr_size_t len_a = pipestate->size-pipestate->offset;
state = apr_socket_send(ret_pfd[i].desc.s, pipestate->reader, &len_a);
pipestate->offset += len_a;
pipestate->reader += len_a;
if ((pipestate->offset >= pipestate->size)||(APR_STATUS_IS_EAGAIN(state)))
{
pipestate->offset = pipestate->size;
PIPE_STATE_TO_COMPLETE(pipestate->state);
} else if ((APR_STATUS_IS_EOF(state))||(len_a == 0)) {
apr_pollfd_t pfd = { pipe->sockpool, APR_POLL_SOCKET, APR_POLLOUT, 0, { NULL }, pipestate };
pfd.desc.s = ret_pfd[i].desc.s;
apr_pollset_remove(pollset, &pfd);
frl_slab_pfree(pipestate);
apr_socket_close(ret_pfd[i].desc.s);
continue;
}
switch (pipestate->state)
{
case FRL_PIPE_SEND_HEADER_COMPLETE:
{
// complete, return to listen state
apr_pollfd_t pfd = { pipe->sockpool, APR_POLL_SOCKET, APR_POLLOUT, 0, { NULL }, pipestate };
pfd.desc.s = ret_pfd[i].desc.s;
apr_pollset_remove(pollset, &pfd);
pfd.reqevents = APR_POLLIN;
pipestate->state = FRL_PIPE_DISABLED;
pipestate->reader = 0;
pipestate->offset = 0;
pipestate->size = 0;
apr_pollset_add(pollset, &pfd);
break;
}
default:
break;
}
} else {
// other errors, close connection
frl_pipe_state_t* pipestate = (frl_pipe_state_t*)ret_pfd[i].client_data;
apr_pollfd_t pfd = { pipe->sockpool, APR_POLL_SOCKET, APR_POLLIN | APR_POLLOUT, 0, { NULL }, pipestate };
pfd.desc.s = ret_pfd[i].desc.s;
apr_pollset_remove(pollset, &pfd);
frl_slab_pfree(pipestate);
apr_socket_close(ret_pfd[i].desc.s);
}
}
}
} else if (!APR_STATUS_IS_TIMEUP(pipe->recv_state)) {
APR_DECLARE(apr_status_t) apr_file_pipe_create_pools(apr_file_t **in,
apr_file_t **out,
apr_int32_t blocking,
apr_pool_t *pool_in,
apr_pool_t *pool_out)
{
#ifdef _WIN32_WCE
return APR_ENOTIMPL;
#else
SECURITY_ATTRIBUTES sa;
static unsigned long id = 0;
DWORD dwPipeMode;
DWORD dwOpenMode;
sa.nLength = sizeof(sa);
#if APR_HAS_UNICODE_FS
IF_WIN_OS_IS_UNICODE
sa.bInheritHandle = FALSE;
#endif
#if APR_HAS_ANSI_FS
ELSE_WIN_OS_IS_ANSI
sa.bInheritHandle = TRUE;
#endif
sa.lpSecurityDescriptor = NULL;
(*in) = (apr_file_t *)apr_pcalloc(pool_in, sizeof(apr_file_t));
(*in)->pool = pool_in;
(*in)->fname = NULL;
(*in)->pipe = 1;
(*in)->timeout = -1;
(*in)->ungetchar = -1;
(*in)->eof_hit = 0;
(*in)->filePtr = 0;
(*in)->bufpos = 0;
(*in)->dataRead = 0;
(*in)->direction = 0;
(*in)->pOverlapped = NULL;
#if APR_FILES_AS_SOCKETS
(void) apr_pollset_create(&(*in)->pollset, 1, p, 0);
#endif
(*out) = (apr_file_t *)apr_pcalloc(pool_out, sizeof(apr_file_t));
(*out)->pool = pool_out;
(*out)->fname = NULL;
(*out)->pipe = 1;
(*out)->timeout = -1;
(*out)->ungetchar = -1;
(*out)->eof_hit = 0;
(*out)->filePtr = 0;
(*out)->bufpos = 0;
(*out)->dataRead = 0;
(*out)->direction = 0;
(*out)->pOverlapped = NULL;
#if APR_FILES_AS_SOCKETS
(void) apr_pollset_create(&(*out)->pollset, 1, p, 0);
#endif
if (apr_os_level >= APR_WIN_NT) {
char rand[8];
int pid = getpid();
#define FMT_PIPE_NAME "\\\\.\\pipe\\apr-pipe-%x.%lx."
/* ^ ^ ^
* pid | |
* | |
* id |
* |
* hex-escaped rand[8] (16 bytes)
*/
char name[sizeof FMT_PIPE_NAME + 2 * sizeof(pid)
+ 2 * sizeof(id)
+ 2 * sizeof(rand)];
apr_size_t pos;
/* Create the read end of the pipe */
dwOpenMode = PIPE_ACCESS_INBOUND;
#ifdef FILE_FLAG_FIRST_PIPE_INSTANCE
dwOpenMode |= FILE_FLAG_FIRST_PIPE_INSTANCE;
#endif
if (blocking == APR_WRITE_BLOCK /* READ_NONBLOCK */
|| blocking == APR_FULL_NONBLOCK) {
dwOpenMode |= FILE_FLAG_OVERLAPPED;
(*in)->pOverlapped =
(OVERLAPPED*) apr_pcalloc((*in)->pool, sizeof(OVERLAPPED));
(*in)->pOverlapped->hEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
(*in)->timeout = 0;
}
dwPipeMode = 0;
apr_generate_random_bytes(rand, sizeof rand);
pos = apr_snprintf(name, sizeof name, FMT_PIPE_NAME, pid, id++);
apr_escape_hex(name + pos, rand, sizeof rand, 0, NULL);
(*in)->filehand = CreateNamedPipe(name,
dwOpenMode,
dwPipeMode,
1, /* nMaxInstances, */
0, /* nOutBufferSize, */
65536, /* nInBufferSize, */
1, /* nDefaultTimeOut, */
&sa);
if ((*in)->filehand == INVALID_HANDLE_VALUE) {
apr_status_t rv = apr_get_os_error();
file_cleanup(*in);
return rv;
}
/* Create the write end of the pipe */
dwOpenMode = FILE_ATTRIBUTE_NORMAL;
if (blocking == APR_READ_BLOCK /* WRITE_NONBLOCK */
|| blocking == APR_FULL_NONBLOCK) {
dwOpenMode |= FILE_FLAG_OVERLAPPED;
(*out)->pOverlapped =
(OVERLAPPED*) apr_pcalloc((*out)->pool, sizeof(OVERLAPPED));
(*out)->pOverlapped->hEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
(*out)->timeout = 0;
}
(*out)->filehand = CreateFile(name,
GENERIC_WRITE, /* access mode */
0, /* share mode */
&sa, /* Security attributes */
OPEN_EXISTING, /* dwCreationDisposition */
dwOpenMode, /* Pipe attributes */
NULL); /* handle to template file */
if ((*out)->filehand == INVALID_HANDLE_VALUE) {
apr_status_t rv = apr_get_os_error();
file_cleanup(*out);
file_cleanup(*in);
return rv;
}
}
else {
/* Pipes on Win9* are blocking. Live with it. */
if (!CreatePipe(&(*in)->filehand, &(*out)->filehand, &sa, 65536)) {
return apr_get_os_error();
}
}
apr_pool_cleanup_register((*in)->pool, (void *)(*in), file_cleanup,
apr_pool_cleanup_null);
apr_pool_cleanup_register((*out)->pool, (void *)(*out), file_cleanup,
apr_pool_cleanup_null);
return APR_SUCCESS;
#endif /* _WIN32_WCE */
}
void ap_mpm_child_main(apr_pool_t *pconf)
{
ap_listen_rec *lr = NULL;
int requests_this_child = 0;
int rv = 0;
unsigned long ulTimes;
int my_pid = getpid();
ULONG rc, c;
HQUEUE workq;
apr_pollset_t *pollset;
int num_listeners;
TID server_maint_tid;
void *sb_mem;
/* Stop Ctrl-C/Ctrl-Break signals going to child processes */
DosSetSignalExceptionFocus(0, &ulTimes);
set_signals();
/* Create pool for child */
apr_pool_create(&pchild, pconf);
ap_run_child_init(pchild, ap_server_conf);
/* Create an event semaphore used to trigger other threads to shutdown */
rc = DosCreateEventSem(NULL, &shutdown_event, 0, FALSE);
if (rc) {
ap_log_error(APLOG_MARK, APLOG_ERR, APR_FROM_OS_ERROR(rc), ap_server_conf,
"unable to create shutdown semaphore, exiting");
clean_child_exit(APEXIT_CHILDFATAL);
}
/* Gain access to the scoreboard. */
rc = DosGetNamedSharedMem(&sb_mem, ap_scoreboard_fname,
PAG_READ|PAG_WRITE);
if (rc) {
ap_log_error(APLOG_MARK, APLOG_ERR, APR_FROM_OS_ERROR(rc), ap_server_conf,
"scoreboard not readable in child, exiting");
clean_child_exit(APEXIT_CHILDFATAL);
}
ap_calc_scoreboard_size();
ap_init_scoreboard(sb_mem);
/* Gain access to the accpet mutex */
rc = DosOpenMutexSem(NULL, &ap_mpm_accept_mutex);
if (rc) {
ap_log_error(APLOG_MARK, APLOG_ERR, APR_FROM_OS_ERROR(rc), ap_server_conf,
"accept mutex couldn't be accessed in child, exiting");
clean_child_exit(APEXIT_CHILDFATAL);
}
/* Find our pid in the scoreboard so we know what slot our parent allocated us */
for (child_slot = 0; ap_scoreboard_image->parent[child_slot].pid != my_pid && child_slot < HARD_SERVER_LIMIT; child_slot++);
if (child_slot == HARD_SERVER_LIMIT) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, ap_server_conf,
"child pid not found in scoreboard, exiting");
clean_child_exit(APEXIT_CHILDFATAL);
}
ap_my_generation = ap_scoreboard_image->parent[child_slot].generation;
memset(ap_scoreboard_image->servers[child_slot], 0, sizeof(worker_score) * HARD_THREAD_LIMIT);
/* Set up an OS/2 queue for passing connections & termination requests
* to worker threads
*/
rc = DosCreateQueue(&workq, QUE_FIFO, apr_psprintf(pchild, "/queues/httpd/work.%d", my_pid));
if (rc) {
ap_log_error(APLOG_MARK, APLOG_ERR, APR_FROM_OS_ERROR(rc), ap_server_conf,
"unable to create work queue, exiting");
clean_child_exit(APEXIT_CHILDFATAL);
}
/* Create initial pool of worker threads */
for (c = 0; c < ap_min_spare_threads; c++) {
// ap_scoreboard_image->servers[child_slot][c].tid = _beginthread(worker_main, NULL, 128*1024, (void *)c);
}
/* Start maintenance thread */
server_maint_tid = _beginthread(server_maintenance, NULL, 32768, NULL);
/* Set up poll */
for (num_listeners = 0, lr = ap_listeners; lr; lr = lr->next) {
num_listeners++;
}
apr_pollset_create(&pollset, num_listeners, pchild, 0);
for (lr = ap_listeners; lr != NULL; lr = lr->next) {
apr_pollfd_t pfd = { 0 };
pfd.desc_type = APR_POLL_SOCKET;
pfd.desc.s = lr->sd;
pfd.reqevents = APR_POLLIN;
pfd.client_data = lr;
apr_pollset_add(pollset, &pfd);
}
/* Main connection accept loop */
do {
apr_pool_t *pconn;
worker_args_t *worker_args;
int last_poll_idx = 0;
apr_pool_create(&pconn, pchild);
worker_args = apr_palloc(pconn, sizeof(worker_args_t));
worker_args->pconn = pconn;
if (num_listeners == 1) {
rv = apr_socket_accept(&worker_args->conn_sd, ap_listeners->sd, pconn);
} else {
const apr_pollfd_t *poll_results;
apr_int32_t num_poll_results;
rc = DosRequestMutexSem(ap_mpm_accept_mutex, SEM_INDEFINITE_WAIT);
if (shutdown_pending) {
DosReleaseMutexSem(ap_mpm_accept_mutex);
break;
}
rv = APR_FROM_OS_ERROR(rc);
if (rv == APR_SUCCESS) {
rv = apr_pollset_poll(pollset, -1, &num_poll_results, &poll_results);
DosReleaseMutexSem(ap_mpm_accept_mutex);
}
if (rv == APR_SUCCESS) {
if (last_poll_idx >= num_listeners) {
last_poll_idx = 0;
}
lr = poll_results[last_poll_idx++].client_data;
rv = apr_socket_accept(&worker_args->conn_sd, lr->sd, pconn);
last_poll_idx++;
}
}
if (rv != APR_SUCCESS) {
if (!APR_STATUS_IS_EINTR(rv)) {
ap_log_error(APLOG_MARK, APLOG_ERR, rv, ap_server_conf,
"apr_socket_accept");
clean_child_exit(APEXIT_CHILDFATAL);
}
} else {
DosWriteQueue(workq, WORKTYPE_CONN, sizeof(worker_args_t), worker_args, 0);
requests_this_child++;
}
if (ap_max_requests_per_child != 0 && requests_this_child >= ap_max_requests_per_child)
break;
} while (!shutdown_pending && ap_my_generation == ap_scoreboard_image->global->running_generation);
ap_scoreboard_image->parent[child_slot].quiescing = 1;
DosPostEventSem(shutdown_event);
DosWaitThread(&server_maint_tid, DCWW_WAIT);
if (is_graceful) {
char someleft;
/* tell our worker threads to exit */
for (c=0; c<HARD_THREAD_LIMIT; c++) {
if (ap_scoreboard_image->servers[child_slot][c].status != SERVER_DEAD) {
DosWriteQueue(workq, WORKTYPE_EXIT, 0, NULL, 0);
}
}
do {
someleft = 0;
for (c=0; c<HARD_THREAD_LIMIT; c++) {
if (ap_scoreboard_image->servers[child_slot][c].status != SERVER_DEAD) {
someleft = 1;
DosSleep(1000);
break;
}
}
} while (someleft);
} else {
DosPurgeQueue(workq);
for (c=0; c<HARD_THREAD_LIMIT; c++) {
if (ap_scoreboard_image->servers[child_slot][c].status != SERVER_DEAD) {
DosKillThread(ap_scoreboard_image->servers[child_slot][c].tid);
}
}
}
apr_pool_destroy(pchild);
}
static void setup_pollset(abts_case *tc, void *data)
{
apr_status_t rv;
rv = apr_pollset_create(&pollset, LARGE_NUM_SOCKETS, p, 0);
ABTS_INT_EQUAL(tc, APR_SUCCESS, rv);
}