// Process one queue's batch requests.
void*
batch_process_queue(void* q_to_wait_on)
{
cf_queue* worker_queue = (cf_queue*)q_to_wait_on;
batch_transaction btr;
uint64_t start;
while (1) {
if (cf_queue_pop(worker_queue, &btr, CF_QUEUE_FOREVER) != 0) {
cf_crash(AS_BATCH, "Failed to pop from batch worker queue.");
}
// Check for timeouts.
if (btr.end_time != 0 && cf_getns() > btr.end_time) {
cf_atomic_int_incr(&g_config.batch_timeout);
if (btr.fd_h) {
as_msg_send_reply(btr.fd_h, AS_PROTO_RESULT_FAIL_TIMEOUT,
0, 0, 0, 0, 0, 0, 0, btr.trid, NULL);
btr.fd_h = 0;
}
batch_transaction_done(&btr);
continue;
}
// Process batch request.
start = cf_getns();
batch_process_request(&btr);
histogram_insert_data_point(g_config.batch_q_process_hist, start);
}
return 0;
}
/*
* Code to init the fields in a transaction. Use this instead of memset.
*
* NB: DO NOT SHUFFLE INIT ORDER .. it is based on elements found in the
* structure.
*/
void
as_transaction_init(as_transaction *tr, cf_digest *keyd, cl_msg *msgp)
{
tr->msgp = msgp;
if (keyd) {
tr->keyd = *keyd;
tr->preprocessed = true;
} else {
tr->keyd = cf_digest_zero;
tr->preprocessed = false;
}
tr->flag = 0;
tr->generation = 0;
tr->result_code = AS_PROTO_RESULT_OK;
tr->proto_fd_h = 0;
tr->start_time = cf_getns();
tr->end_time = 0;
AS_PARTITION_RESERVATION_INIT(tr->rsv);
tr->microbenchmark_time = 0;
tr->microbenchmark_is_resolve = false;
tr->proxy_node = 0;
tr->proxy_msg = 0;
UREQ_DATA_INIT(&tr->udata);
tr->batch_shared = 0;
tr->batch_index = 0;
tr->void_time = 0;
}
// Process one queue's batch requests.
static void
batch_worker(void* udata)
{
batch_transaction* btr = (batch_transaction*)udata;
// Check for timeouts.
if (btr->end_time != 0 && cf_getns() > btr->end_time) {
cf_atomic_int_incr(&g_config.batch_timeout);
if (btr->fd_h) {
as_msg_send_reply(btr->fd_h, AS_PROTO_RESULT_FAIL_TIMEOUT,
0, 0, 0, 0, 0, 0, 0, btr->trid, NULL);
btr->fd_h = 0;
}
batch_transaction_done(btr, false);
return;
}
// Process batch request.
uint64_t start = cf_getns();
batch_process_request(btr);
histogram_insert_data_point(g_config.batch_q_process_hist, start);
}
//------------------------------------------------
// Insert a time interval data point. The interval
// is time elapsed since start_ns, converted to
// milliseconds or microseconds as appropriate.
// Assumes start_ns was obtained via cf_getns()
// some time ago. Generates a histogram with
// either:
//
// bucket millisecond range
// ------ -----------------
// 0 0 to 1 (more exactly, 0.999999)
// 1 1 to 2 (more exactly, 1.999999)
// 2 2 to 4 (more exactly, 3.999999)
// 3 4 to 8 (more exactly, 7.999999)
// 4 8 to 16 (more exactly, 15.999999)
// etc.
//
// or:
//
// bucket microsecond range
// ------ -----------------
// 0 0 to 1 (more exactly, 0.999)
// 1 1 to 2 (more exactly, 1.999)
// 2 2 to 4 (more exactly, 3.999)
// 3 4 to 8 (more exactly, 7.999)
// 4 8 to 16 (more exactly, 15.999)
// etc.
//
void
histogram_insert_data_point(histogram *h, uint64_t start_ns)
{
uint64_t end_ns = cf_getns();
uint64_t delta_t = (end_ns - start_ns) / h->time_div;
int bucket = 0;
if (delta_t != 0) {
bucket = msb(delta_t);
if (start_ns > end_ns) {
// Either the clock went backwards, or wrapped. (Assume the former,
// since it takes ~580 years from 0 to wrap.)
cf_warning(AS_INFO, "clock went backwards: start %lu end %lu",
start_ns, end_ns);
bucket = 0;
}
}
cf_atomic64_incr(&h->counts[bucket]);
}
// Set of threads which talk to client over the connection for doing the needful
// processing. Note that once fd is assigned to a thread all the work on that fd
// is done by that thread. Fair fd usage is expected of the client. First thread
// is special - also does accept [listens for new connections]. It is the only
// thread which does it.
void *
thr_demarshal(void *arg)
{
cf_socket_cfg *s, *ls;
// Create my epoll fd, register in the global list.
struct epoll_event ev;
int nevents, i, n, epoll_fd;
cf_clock last_fd_print = 0;
#if defined(USE_SYSTEMTAP)
uint64_t nodeid = g_config.self_node;
#endif
// Early stage aborts; these will cause faults in process scope.
cf_assert(arg, AS_DEMARSHAL, CF_CRITICAL, "invalid argument");
s = &g_config.socket;
ls = &g_config.localhost_socket;
#ifdef USE_JEM
int orig_arena;
if (0 > (orig_arena = jem_get_arena())) {
cf_crash(AS_DEMARSHAL, "Failed to get original arena for thr_demarshal()!");
} else {
cf_info(AS_DEMARSHAL, "Saved original JEMalloc arena #%d for thr_demarshal()", orig_arena);
}
#endif
// Figure out my thread index.
pthread_t self = pthread_self();
int thr_id;
for (thr_id = 0; thr_id < MAX_DEMARSHAL_THREADS; thr_id++) {
if (0 != pthread_equal(g_demarshal_args->dm_th[thr_id], self))
break;
}
if (thr_id == MAX_DEMARSHAL_THREADS) {
cf_debug(AS_FABRIC, "Demarshal thread could not figure own ID, bogus, exit, fu!");
return(0);
}
// First thread accepts new connection at interface socket.
if (thr_id == 0) {
demarshal_file_handle_init();
epoll_fd = epoll_create(EPOLL_SZ);
if (epoll_fd == -1)
cf_crash(AS_DEMARSHAL, "epoll_create(): %s", cf_strerror(errno));
memset(&ev, 0, sizeof (ev));
ev.events = EPOLLIN | EPOLLERR | EPOLLHUP;
ev.data.fd = s->sock;
if (0 > epoll_ctl(epoll_fd, EPOLL_CTL_ADD, s->sock, &ev))
cf_crash(AS_DEMARSHAL, "epoll_ctl(): %s", cf_strerror(errno));
cf_info(AS_DEMARSHAL, "Service started: socket %s:%d", s->addr, s->port);
if (ls->sock) {
ev.events = EPOLLIN | EPOLLERR | EPOLLHUP;
ev.data.fd = ls->sock;
if (0 > epoll_ctl(epoll_fd, EPOLL_CTL_ADD, ls->sock, &ev))
cf_crash(AS_DEMARSHAL, "epoll_ctl(): %s", cf_strerror(errno));
cf_info(AS_DEMARSHAL, "Service also listening on localhost socket %s:%d", ls->addr, ls->port);
}
}
else {
epoll_fd = epoll_create(EPOLL_SZ);
if (epoll_fd == -1)
cf_crash(AS_DEMARSHAL, "epoll_create(): %s", cf_strerror(errno));
}
g_demarshal_args->epoll_fd[thr_id] = epoll_fd;
cf_detail(AS_DEMARSHAL, "demarshal thread started: id %d", thr_id);
int id_cntr = 0;
// Demarshal transactions from the socket.
for ( ; ; ) {
struct epoll_event events[EPOLL_SZ];
cf_detail(AS_DEMARSHAL, "calling epoll");
nevents = epoll_wait(epoll_fd, events, EPOLL_SZ, -1);
if (0 > nevents) {
cf_debug(AS_DEMARSHAL, "epoll_wait() returned %d ; errno = %d (%s)", nevents, errno, cf_strerror(errno));
}
cf_detail(AS_DEMARSHAL, "epoll event received: nevents %d", nevents);
uint64_t now_ns = cf_getns();
uint64_t now_ms = now_ns / 1000000;
// Iterate over all events.
for (i = 0; i < nevents; i++) {
if ((s->sock == events[i].data.fd) || (ls->sock == events[i].data.fd)) {
// Accept new connections on the service socket.
int csocket = -1;
struct sockaddr_in caddr;
socklen_t clen = sizeof(caddr);
char cpaddr[64];
if (-1 == (csocket = accept(events[i].data.fd, (struct sockaddr *)&caddr, &clen))) {
// This means we're out of file descriptors - could be a SYN
// flood attack or misbehaving client. Eventually we'd like
// to make the reaper fairer, but for now we'll just have to
// ignore the accept error and move on.
if ((errno == EMFILE) || (errno == ENFILE)) {
if (last_fd_print != (cf_getms() / 1000L)) {
cf_info(AS_DEMARSHAL, " warning: hit OS file descript limit (EMFILE on accept), consider raising limit");
last_fd_print = cf_getms() / 1000L;
}
continue;
}
cf_crash(AS_DEMARSHAL, "accept: %s (errno %d)", cf_strerror(errno), errno);
}
// Get the client IP address in string form.
if (caddr.sin_family == AF_INET) {
if (NULL == inet_ntop(AF_INET, &caddr.sin_addr.s_addr, (char *)cpaddr, sizeof(cpaddr))) {
cf_crash(AS_DEMARSHAL, "inet_ntop(): %s (errno %d)", cf_strerror(errno), errno);
}
}
else if (caddr.sin_family == AF_INET6) {
struct sockaddr_in6* addr_in6 = (struct sockaddr_in6*)&caddr;
if (NULL == inet_ntop(AF_INET6, &addr_in6->sin6_addr, (char *)cpaddr, sizeof(cpaddr))) {
cf_crash(AS_DEMARSHAL, "inet_ntop(): %s (errno %d)", cf_strerror(errno), errno);
}
}
else {
cf_crash(AS_DEMARSHAL, "unknown address family %u", caddr.sin_family);
}
cf_detail(AS_DEMARSHAL, "new connection: %s (fd %d)", cpaddr, csocket);
// Validate the limit of protocol connections we allow.
uint32_t conns_open = g_config.proto_connections_opened - g_config.proto_connections_closed;
if (conns_open > g_config.n_proto_fd_max) {
if ((last_fd_print + 5000L) < cf_getms()) { // no more than 5 secs
cf_warning(AS_DEMARSHAL, "dropping incoming client connection: hit limit %d connections", conns_open);
last_fd_print = cf_getms();
}
shutdown(csocket, SHUT_RDWR);
close(csocket);
csocket = -1;
continue;
}
// Set the socket to nonblocking.
if (-1 == cf_socket_set_nonblocking(csocket)) {
cf_info(AS_DEMARSHAL, "unable to set client socket to nonblocking mode");
shutdown(csocket, SHUT_RDWR);
close(csocket);
csocket = -1;
continue;
}
// Create as_file_handle and queue it up in epoll_fd for further
// communication on one of the demarshal threads.
as_file_handle *fd_h = cf_rc_alloc(sizeof(as_file_handle));
if (!fd_h) {
cf_crash(AS_DEMARSHAL, "malloc");
}
sprintf(fd_h->client, "%s:%d", cpaddr, ntohs(caddr.sin_port));
fd_h->fd = csocket;
fd_h->last_used = cf_getms();
fd_h->reap_me = false;
fd_h->trans_active = false;
fd_h->proto = 0;
fd_h->proto_unread = 0;
fd_h->fh_info = 0;
fd_h->security_filter = as_security_filter_create();
// Insert into the global table so the reaper can manage it. Do
// this before queueing it up for demarshal threads - once
// EPOLL_CTL_ADD is done it's difficult to back out (if insert
// into global table fails) because fd state could be anything.
cf_rc_reserve(fd_h);
pthread_mutex_lock(&g_file_handle_a_LOCK);
int j;
bool inserted = true;
if (0 != cf_queue_pop(g_freeslot, &j, CF_QUEUE_NOWAIT)) {
inserted = false;
}
else {
g_file_handle_a[j] = fd_h;
}
pthread_mutex_unlock(&g_file_handle_a_LOCK);
if (!inserted) {
cf_info(AS_DEMARSHAL, "unable to add socket to file handle table");
shutdown(csocket, SHUT_RDWR);
close(csocket);
csocket = -1;
cf_rc_free(fd_h); // will free even with ref-count of 2
}
else {
// Place the client socket in the event queue.
memset(&ev, 0, sizeof(ev));
ev.events = EPOLLIN | EPOLLET | EPOLLRDHUP ;
ev.data.ptr = fd_h;
// Round-robin pick up demarshal thread epoll_fd and add
// this new connection to epoll.
int id;
while (true) {
id = (id_cntr++) % g_demarshal_args->num_threads;
if (g_demarshal_args->epoll_fd[id] != 0) {
break;
}
}
fd_h->epoll_fd = g_demarshal_args->epoll_fd[id];
if (0 > (n = epoll_ctl(fd_h->epoll_fd, EPOLL_CTL_ADD, csocket, &ev))) {
cf_info(AS_DEMARSHAL, "unable to add socket to event queue of demarshal thread %d %d", id, g_demarshal_args->num_threads);
pthread_mutex_lock(&g_file_handle_a_LOCK);
fd_h->reap_me = true;
as_release_file_handle(fd_h);
fd_h = 0;
pthread_mutex_unlock(&g_file_handle_a_LOCK);
}
else {
cf_atomic_int_incr(&g_config.proto_connections_opened);
}
}
}
else {
bool has_extra_ref = false;
as_file_handle *fd_h = events[i].data.ptr;
if (fd_h == 0) {
cf_info(AS_DEMARSHAL, "event with null handle, continuing");
goto NextEvent;
}
cf_detail(AS_DEMARSHAL, "epoll connection event: fd %d, events 0x%x", fd_h->fd, events[i].events);
// Process data on an existing connection: this might be more
// activity on an already existing transaction, so we have some
// state to manage.
as_proto *proto_p = 0;
int fd = fd_h->fd;
if (events[i].events & (EPOLLRDHUP | EPOLLERR | EPOLLHUP)) {
cf_detail(AS_DEMARSHAL, "proto socket: remote close: fd %d event %x", fd, events[i].events);
// no longer in use: out of epoll etc
goto NextEvent_FD_Cleanup;
}
if (fd_h->trans_active) {
goto NextEvent;
}
// If pointer is NULL, then we need to create a transaction and
// store it in the buffer.
if (fd_h->proto == NULL) {
as_proto proto;
int sz;
/* Get the number of available bytes */
if (-1 == ioctl(fd, FIONREAD, &sz)) {
cf_info(AS_DEMARSHAL, "unable to get number of available bytes");
goto NextEvent_FD_Cleanup;
}
// If we don't have enough data to fill the message buffer,
// just wait and we'll come back to this one. However, we'll
// let messages with zero size through, since they are
// likely errors. We don't cleanup the FD in this case since
// we'll get more data on it.
if (sz < sizeof(as_proto) && sz != 0) {
goto NextEvent;
}
// Do a preliminary read of the header into a stack-
// allocated structure, so that later on we can allocate the
// entire message buffer.
if (0 >= (n = cf_socket_recv(fd, &proto, sizeof(as_proto), MSG_WAITALL))) {
cf_detail(AS_DEMARSHAL, "proto socket: read header fail: error: rv %d sz was %d errno %d", n, sz, errno);
goto NextEvent_FD_Cleanup;
}
if (proto.version != PROTO_VERSION &&
// For backward compatibility, allow version 0 with
// security messages.
! (proto.version == 0 && proto.type == PROTO_TYPE_SECURITY)) {
cf_warning(AS_DEMARSHAL, "proto input from %s: unsupported proto version %u",
fd_h->client, proto.version);
goto NextEvent_FD_Cleanup;
}
// Swap the necessary elements of the as_proto.
as_proto_swap(&proto);
if (proto.sz > PROTO_SIZE_MAX) {
cf_warning(AS_DEMARSHAL, "proto input from %s: msg greater than %d, likely request from non-Aerospike client, rejecting: sz %"PRIu64,
fd_h->client, PROTO_SIZE_MAX, proto.sz);
goto NextEvent_FD_Cleanup;
}
#ifdef USE_JEM
// Attempt to peek the namespace and set the JEMalloc arena accordingly.
size_t peeked_data_sz = 0;
size_t min_field_sz = sizeof(uint32_t) + sizeof(char);
size_t min_as_msg_sz = sizeof(as_msg) + min_field_sz;
size_t peekbuf_sz = 2048; // (Arbitrary "large enough" size for peeking the fields of "most" AS_MSGs.)
uint8_t peekbuf[peekbuf_sz];
if (PROTO_TYPE_AS_MSG == proto.type) {
size_t offset = sizeof(as_msg);
// Number of bytes to peek from the socket.
// size_t peek_sz = peekbuf_sz; // Peak up to the size of the peek buffer.
size_t peek_sz = MIN(proto.sz, peekbuf_sz); // Peek only up to the minimum necessary number of bytes.
if (!(peeked_data_sz = cf_socket_recv(fd, peekbuf, peek_sz, 0))) {
// That's actually legitimate. The as_proto may have gone into one
// packet, the as_msg into the next one, which we haven't yet received.
// This just "never happened" without async.
cf_detail(AS_DEMARSHAL, "could not peek the as_msg header, expected %zu byte(s)", peek_sz);
}
if (peeked_data_sz > min_as_msg_sz) {
// cf_debug(AS_DEMARSHAL, "(Peeked %zu bytes.)", peeked_data_sz);
if (peeked_data_sz > proto.sz) {
cf_warning(AS_DEMARSHAL, "Received unexpected extra data from client %s socket %d when peeking as_proto!", fd_h->client, fd);
log_as_proto_and_peeked_data(&proto, peekbuf, peeked_data_sz);
goto NextEvent_FD_Cleanup;
}
if (((as_msg*)peekbuf)->info1 & AS_MSG_INFO1_BATCH) {
jem_set_arena(orig_arena);
} else {
uint16_t n_fields = ntohs(((as_msg *) peekbuf)->n_fields), field_num = 0;
bool found = false;
// cf_debug(AS_DEMARSHAL, "Found %d AS_MSG fields", n_fields);
while (!found && (field_num < n_fields)) {
as_msg_field *field = (as_msg_field *) (&peekbuf[offset]);
uint32_t value_sz = ntohl(field->field_sz) - 1;
// cf_debug(AS_DEMARSHAL, "Field #%d offset: %lu", field_num, offset);
// cf_debug(AS_DEMARSHAL, "\tvalue_sz %u", value_sz);
// cf_debug(AS_DEMARSHAL, "\ttype %d", field->type);
if (AS_MSG_FIELD_TYPE_NAMESPACE == field->type) {
if (value_sz >= AS_ID_NAMESPACE_SZ) {
cf_warning(AS_DEMARSHAL, "namespace too long (%u) in as_msg", value_sz);
goto NextEvent_FD_Cleanup;
}
char ns[AS_ID_NAMESPACE_SZ];
found = true;
memcpy(ns, field->data, value_sz);
ns[value_sz] = '\0';
// cf_debug(AS_DEMARSHAL, "Found ns \"%s\" in field #%d.", ns, field_num);
jem_set_arena(as_namespace_get_jem_arena(ns));
} else {
// cf_debug(AS_DEMARSHAL, "Message field %d is not namespace (type %d) ~~ Reading next field", field_num, field->type);
field_num++;
offset += sizeof(as_msg_field) + value_sz;
if (offset >= peeked_data_sz) {
break;
}
}
}
if (!found) {
cf_warning(AS_DEMARSHAL, "Can't get namespace from AS_MSG (peeked %zu bytes) ~~ Using default thr_demarshal arena.", peeked_data_sz);
jem_set_arena(orig_arena);
}
}
} else {
jem_set_arena(orig_arena);
}
} else {
jem_set_arena(orig_arena);
}
#endif
// Allocate the complete message buffer.
proto_p = cf_malloc(sizeof(as_proto) + proto.sz);
cf_assert(proto_p, AS_DEMARSHAL, CF_CRITICAL, "allocation: %zu %s", (sizeof(as_proto) + proto.sz), cf_strerror(errno));
memcpy(proto_p, &proto, sizeof(as_proto));
#ifdef USE_JEM
// Jam in the peeked data.
if (peeked_data_sz) {
memcpy(proto_p->data, &peekbuf, peeked_data_sz);
}
fd_h->proto_unread = proto_p->sz - peeked_data_sz;
#else
fd_h->proto_unread = proto_p->sz;
#endif
fd_h->proto = (void *) proto_p;
}
else {
proto_p = fd_h->proto;
}
if (fd_h->proto_unread > 0) {
// Read the data.
n = cf_socket_recv(fd, proto_p->data + (proto_p->sz - fd_h->proto_unread), fd_h->proto_unread, 0);
if (0 >= n) {
if (errno == EAGAIN) {
continue;
}
cf_info(AS_DEMARSHAL, "receive socket: fail? n %d errno %d %s closing connection.", n, errno, cf_strerror(errno));
goto NextEvent_FD_Cleanup;
}
// Decrement bytes-unread counter.
cf_detail(AS_DEMARSHAL, "read fd %d (%d %d)", fd, n, fd_h->proto_unread);
fd_h->proto_unread -= n;
}
// Check for a finished read.
if (0 == fd_h->proto_unread) {
// It's only really live if it's injecting a transaction.
fd_h->last_used = now_ms;
thr_demarshal_pause(fd_h); // pause reading while the transaction is in progress
fd_h->proto = 0;
fd_h->proto_unread = 0;
// INIT_TR
as_transaction tr;
as_transaction_init(&tr, NULL, (cl_msg *)proto_p);
cf_rc_reserve(fd_h);
has_extra_ref = true;
tr.proto_fd_h = fd_h;
tr.start_time = now_ns; // set transaction start time
tr.preprocessed = false;
if (! as_proto_is_valid_type(proto_p)) {
cf_warning(AS_DEMARSHAL, "unsupported proto message type %u", proto_p->type);
// We got a proto message type we don't recognize, so it
// may not do any good to send back an as_msg error, but
// it's the best we can do. At least we can keep the fd.
as_transaction_demarshal_error(&tr, AS_PROTO_RESULT_FAIL_UNKNOWN);
cf_atomic_int_incr(&g_config.proto_transactions);
goto NextEvent;
}
if (g_config.microbenchmarks) {
histogram_insert_data_point(g_config.demarshal_hist, now_ns);
tr.microbenchmark_time = cf_getns();
}
// Check if it's compressed.
if (tr.msgp->proto.type == PROTO_TYPE_AS_MSG_COMPRESSED) {
// Decompress it - allocate buffer to hold decompressed
// packet.
uint8_t *decompressed_buf = NULL;
size_t decompressed_buf_size = 0;
int rv = 0;
if ((rv = as_packet_decompression((uint8_t *)proto_p, &decompressed_buf, &decompressed_buf_size))) {
cf_warning(AS_DEMARSHAL, "as_proto decompression failed! (rv %d)", rv);
cf_warning_binary(AS_DEMARSHAL, proto_p, sizeof(as_proto) + proto_p->sz, CF_DISPLAY_HEX_SPACED, "compressed proto_p");
as_transaction_demarshal_error(&tr, AS_PROTO_RESULT_FAIL_UNKNOWN);
cf_atomic_int_incr(&g_config.proto_transactions);
goto NextEvent;
}
// Count the packets.
cf_atomic_int_add(&g_config.stat_compressed_pkts_received, 1);
// Free the compressed packet since we'll be using the
// decompressed packet from now on.
cf_free(proto_p);
proto_p = NULL;
// Get original packet.
tr.msgp = (cl_msg *)decompressed_buf;
as_proto_swap(&(tr.msgp->proto));
if (! as_proto_wrapped_is_valid(&tr.msgp->proto, decompressed_buf_size)) {
cf_warning(AS_DEMARSHAL, "decompressed unusable proto: version %u, type %u, sz %lu [%lu]",
tr.msgp->proto.version, tr.msgp->proto.type, tr.msgp->proto.sz, decompressed_buf_size);
as_transaction_demarshal_error(&tr, AS_PROTO_RESULT_FAIL_UNKNOWN);
cf_atomic_int_incr(&g_config.proto_transactions);
goto NextEvent;
}
}
// Security protocol transactions.
if (tr.msgp->proto.type == PROTO_TYPE_SECURITY) {
as_security_transact(&tr);
cf_atomic_int_incr(&g_config.proto_transactions);
goto NextEvent;
}
// Info protocol requests.
if (tr.msgp->proto.type == PROTO_TYPE_INFO) {
if (as_info(&tr)) {
cf_warning(AS_DEMARSHAL, "Info request failed to be enqueued ~~ Freeing protocol buffer");
goto NextEvent_FD_Cleanup;
}
cf_atomic_int_incr(&g_config.proto_transactions);
goto NextEvent;
}
ASD_TRANS_DEMARSHAL(nodeid, (uint64_t) tr.msgp);
// Fast path for batch requests.
if (tr.msgp->msg.info1 & AS_MSG_INFO1_BATCH) {
as_batch_queue_task(&tr);
cf_atomic_int_incr(&g_config.proto_transactions);
goto NextEvent;
}
// Either process the transaction directly in this thread,
// or queue it for processing by another thread (tsvc/info).
if (0 != thr_tsvc_process_or_enqueue(&tr)) {
cf_warning(AS_DEMARSHAL, "Failed to queue transaction to the service thread");
goto NextEvent_FD_Cleanup;
}
else {
cf_atomic_int_incr(&g_config.proto_transactions);
}
}
// Jump the proto message free & FD cleanup. If we get here, the
// above operations went smoothly. The message free & FD cleanup
// job is handled elsewhere as directed by
// thr_tsvc_process_or_enqueue().
goto NextEvent;
NextEvent_FD_Cleanup:
// If we allocated memory for the incoming message, free it.
if (proto_p) {
cf_free(proto_p);
fd_h->proto = 0;
}
// If fd has extra reference for transaction, release it.
if (has_extra_ref) {
cf_rc_release(fd_h);
}
// Remove the fd from the events list.
if (epoll_ctl(epoll_fd, EPOLL_CTL_DEL, fd, 0) < 0) {
cf_crash(AS_DEMARSHAL, "unable to remove socket FD %d from epoll instance FD %d: %d (%s)",
fd, epoll_fd, errno, cf_strerror(errno));
}
pthread_mutex_lock(&g_file_handle_a_LOCK);
fd_h->reap_me = true;
as_release_file_handle(fd_h);
fd_h = 0;
pthread_mutex_unlock(&g_file_handle_a_LOCK);
NextEvent:
;
}
// We should never be canceled externally, but just in case...
pthread_testcancel();
}
}
return NULL;
}
/* Create an internal transaction.
* parameters:
* tr_create_data : Details for creating transaction
* tr : to be filled
*
* return : 0 on success
* -1 on failure
*/
int
as_transaction_create_internal(as_transaction *tr, tr_create_data * trc_data)
{
tr_create_data * d = (tr_create_data*) trc_data;
// Get Defensive
memset(tr, 0, sizeof(as_transaction));
if (d->fd_h) {
cf_warning(AS_PROTO, "Foreground Internal Transation .. Ignoring");
return -1;
} else {
tr->proto_fd_h = NULL;
}
tr->start_time = cf_getns();
tr->flag = AS_TRANSACTION_FLAG_INTERNAL;
tr->keyd = d->digest;
tr->preprocessed = true;
tr->result_code = AS_PROTO_RESULT_OK;
AS_PARTITION_RESERVATION_INIT(tr->rsv);
UREQ_DATA_INIT(&tr->udata);
// Get namespace and set lengths.
int ns_len = strlen(d->ns->name);
int set_len = strlen(d->set);
// Figure out the size of the message.
size_t msg_sz = sizeof(cl_msg);
msg_sz += sizeof(as_msg_field) + ns_len;
if (set_len != 0) {
msg_sz += sizeof(as_msg_field) + set_len;
}
msg_sz += sizeof(as_msg_field) + sizeof(cf_digest);
msg_sz += sizeof(as_msg_field) + sizeof(d->trid);
// Udf call structure will go as a part of the transaction udata.
// Do not pack it in the message.
cf_debug(AS_PROTO, "UDF : Msg size for internal transaction is %d", msg_sz);
// Allocate space in the buffer.
uint8_t * buf = cf_malloc(msg_sz); memset(buf, 0, msg_sz);
if (!buf) {
return -1;
}
uint8_t * buf_r = buf;
// Calculation of number of fields:
// n_fields = ( ns ? 1 : 0 ) + (set ? 1 : 0) + (digest ? 1 : 0) + (trid ? 1 : 0) + (call ? 3 : 0);
// Write the header in case the request gets proxied. Is it enough ??
buf = as_msg_write_header(buf, msg_sz, 0, d->msg_type, 0, 0, 0, 0, 2 /*n_fields*/, 0);
buf = as_msg_write_fields(buf, d->ns->name, ns_len, d->set, set_len, &(d->digest), 0, 0 , 0, 0);
tr->msgp = (cl_msg *) buf_r;
return 0;
}