[patch tabled 4/8] Split out chunk back-end
This patch is careful not to change anything but the strictly necessary
parts in the actual code.
Signed-off-by: Pete Zaitcev <zaitcev@xxxxxxxxxx>
---
server/Makefile.am | 3
server/stor_chunk.c | 409 ++++++++++++++++++++++++++++++++++++++++++
server/storage.c | 377 --------------------------------------
server/tabled.h | 3
4 files changed, 414 insertions(+), 378 deletions(-)
commit 1eaf18ff243a2d4e291d0af2f13ec425ab0757c0
Author: Pete Zaitcev <zaitcev@xxxxxxxxx>
Date: Thu Nov 11 16:30:52 2010 -0700
Split out the chunk-specific part, byte for byte, no changes.
diff --git a/server/Makefile.am b/server/Makefile.am
index 5b53a0a..52beec4 100644
--- a/server/Makefile.am
+++ b/server/Makefile.am
@@ -5,7 +5,8 @@ sbin_PROGRAMS = tabled tdbadm
tabled_SOURCES = tabled.h \
bucket.c cldu.c config.c metarep.c object.c replica.c \
- server.c status.c storage.c storparse.c util.c
+ server.c status.c storage.c storparse.c \
+ stor_chunk.c util.c
tabled_LDADD = ../lib/libtdb.a \
@HAIL_LIBS@ @PCRE_LIBS@ @GLIB_LIBS@ \
@CRYPTO_LIBS@ @DB4_LIBS@ @EVENT_LIBS@ @SSL_LIBS@
diff --git a/server/stor_chunk.c b/server/stor_chunk.c
new file mode 100644
index 0000000..815adcf
--- /dev/null
+++ b/server/stor_chunk.c
@@ -0,0 +1,409 @@
+
+/*
+ * Copyright 2010 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING. If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#define _GNU_SOURCE
+#include "tabled-config.h"
+
+#include <sys/types.h>
+// #include <sys/socket.h>
+#include <errno.h>
+#include <syslog.h>
+#include <string.h>
+#include <glib.h>
+#include <event.h>
+#include <chunkc.h>
+#include <netdb.h>
+#include "tabled.h"
+
+static const char stor_key_fmt[] = "%016llx";
+#define STOR_KEY_SLEN 16
+
+static int stor_new_stc(struct storage_node *stn, struct st_client **stcp)
+{
+ struct st_client *stc;
+ struct sockaddr_in *a4;
+ struct sockaddr_in6 *a6;
+ unsigned short port;
+
+ if (stn->addr.sin6_family == AF_INET) {
+ a4 = (struct sockaddr_in *) &stn->addr;
+ port = ntohs(a4->sin_port);
+ } else if (stn->addr.sin6_family == AF_INET6) {
+ a6 = &stn->addr;
+ port = ntohs(a6->sin6_port);
+ } else {
+ return -EINVAL;
+ }
+
+ stc = stc_new(stn->hostname, port,
+ tabled_srv.chunk_user, tabled_srv.chunk_key,
+ false);
+ if (!stc)
+ return -EDOM;
+
+ if (!stc_table_openz(stc, "tabled", CHF_TBL_CREAT)) {
+ stc_free(stc);
+ return -EDOM;
+ }
+
+ *stcp = stc;
+ return 0;
+}
+
+static void stor_read_event(int fd, short events, void *userdata)
+{
+ struct open_chunk *cep = userdata;
+
+ cep->r_armed = false; /* no EV_PERSIST */
+ if (cep->ocb)
+ (*cep->ocb)(cep);
+}
+
+static void stor_write_event(int fd, short events, void *userdata)
+{
+ struct open_chunk *cep = userdata;
+
+ cep->w_armed = false; /* no EV_PERSIST */
+ if (cep->ocb)
+ (*cep->ocb)(cep);
+}
+
+/*
+ * Open *cep using stn, set up chunk session if needed.
+ */
+static int chunk_open(struct open_chunk *cep, struct storage_node *stn,
+ struct event_base *ev_base)
+{
+ int rc;
+
+ if (cep->stc)
+ return 0;
+
+ if ((rc = stor_new_stc(stn, &cep->stc)) < 0)
+ return rc;
+
+ cep->evbase = ev_base;
+ cep->node = stor_node_get(stn);
+
+ /* cep->stc->verbose = 1; */
+
+ return 0;
+}
+
+static int chunk_put_start(struct open_chunk *cep,
+ void (*cb)(struct open_chunk *),
+ uint64_t key, uint64_t size)
+{
+ char stckey[STOR_KEY_SLEN+1];
+
+ if (cep->key)
+ return -EBUSY;
+ if (!cep->stc)
+ return -EINVAL;
+
+ /*
+ * Set up the putting.
+ */
+ sprintf(stckey, stor_key_fmt, (unsigned long long) key);
+ if (!stc_put_startz(cep->stc, stckey, size, &cep->wfd, 0)) {
+ if (debugging)
+ applog(LOG_INFO,
+ "stor nid %u put %s new for %lld error",
+ cep->node->id, stckey, (long long) size);
+ return -EIO;
+ }
+ cep->size = size;
+ cep->done = 0;
+ cep->key = key;
+ cep->ocb = cb;
+ event_set(&cep->wevt, cep->wfd, EV_WRITE, stor_write_event, cep);
+ event_base_set(cep->evbase, &cep->wevt);
+
+ if (debugging)
+ applog(LOG_INFO, "stor nid %u put %s new for %lld",
+ cep->node->id, stckey, (long long) size);
+
+ return 0;
+}
+
+static int chunk_open_read(struct open_chunk *cep,
+ void (*cb)(struct open_chunk *),
+ uint64_t key, uint64_t *psize)
+{
+ char stckey[STOR_KEY_SLEN+1];
+ uint64_t size;
+
+ if (cep->key)
+ return -EBUSY;
+ if (!cep->stc)
+ return -EINVAL;
+
+ if (cep->size && cep->done != cep->size) {
+ applog(LOG_ERR, "Unfinished Get (%ld,%ld)",
+ (long)cep->done, (long)cep->size);
+ cep->size = 0;
+ }
+
+ sprintf(stckey, stor_key_fmt, (unsigned long long) key);
+ if (!stc_get_startz(cep->stc, stckey, &cep->rfd, &size)) {
+ if (debugging)
+ applog(LOG_INFO, "stor nid %u get %s error",
+ cep->node->id, stckey);
+ return -EIO;
+ }
+ *psize = size;
+ cep->size = size;
+ cep->done = 0;
+ cep->key = key;
+ cep->ocb = cb;
+ event_set(&cep->revt, cep->rfd, EV_READ, stor_read_event, cep);
+ event_base_set(cep->evbase, &cep->revt);
+
+ if (debugging)
+ applog(LOG_INFO, "stor nid %u get %s size %lld",
+ cep->node->id, stckey, (long long) size);
+
+ return 0;
+}
+
+/*
+ * FIXME We don't cache sessions while tabled is being debugged. Maybe later.
+ */
+static void chunk_close(struct open_chunk *cep)
+{
+ if (cep->stc) {
+ stor_node_put(cep->node);
+ cep->node = NULL;
+ stc_free(cep->stc);
+ cep->stc = NULL;
+ }
+
+ if (cep->r_armed) {
+ event_del(&cep->revt);
+ cep->r_armed = false;
+ }
+ cep->size = 0;
+
+ if (cep->w_armed) {
+ event_del(&cep->wevt);
+ cep->w_armed = false;
+ }
+
+ cep->key = 0;
+}
+
+/*
+ * There's no "abort" call for an existing transfer. We could complete
+ * the transfer instead of trashing the whole session, but that may involve
+ * sending or receiving gigabytes. So we just cycle the session.
+ */
+static void chunk_abort(struct open_chunk *cep)
+{
+ char stckey[STOR_KEY_SLEN+1];
+ int rc;
+
+ if (!cep->stc)
+ return;
+
+ if (debugging)
+ applog(LOG_INFO, "stor aborting");
+
+ stc_free(cep->stc);
+ cep->stc = NULL;
+
+ rc = stor_new_stc(cep->node, &cep->stc);
+ if (rc < 0) {
+ stor_node_put(cep->node);
+ cep->node = NULL;
+
+ if (debugging)
+ applog(LOG_INFO, "Failed to reopen Chunk nid %u (%d)",
+ cep->node->id, rc);
+
+ cep->size = 0;
+ cep->done = 0;
+ cep->key = 0;
+ return;
+ }
+
+ if (cep->done != cep->size) {
+ sprintf(stckey, stor_key_fmt, (unsigned long long) cep->key);
+ stc_delz(cep->stc, stckey);
+ }
+
+ if (cep->r_armed) {
+ event_del(&cep->revt);
+ cep->r_armed = false;
+ }
+
+ if (cep->w_armed) {
+ event_del(&cep->wevt);
+ cep->w_armed = false;
+ }
+
+ cep->size = 0;
+ cep->done = 0;
+
+ cep->key = 0;
+}
+
+static ssize_t chunk_put_buf(struct open_chunk *cep, void *data, size_t len)
+{
+ int rc;
+
+ if (cep->done + len > cep->size) {
+ applog(LOG_ERR, "Put size %ld remaining %ld",
+ (long) len, (long) (cep->size - cep->done));
+ if (cep->done == cep->size)
+ return -EIO; /* will spin otherwise, better error */
+ len = cep->size - cep->done;
+ }
+
+ if (!cep->stc)
+ return -EPIPE;
+ rc = stc_put_send(cep->stc, data, len);
+ if (rc < len && !cep->w_armed) {
+ event_add(&cep->wevt, NULL);
+ cep->w_armed = true;
+ }
+ cep->done += rc;
+ return rc;
+}
+
+static bool chunk_put_end(struct open_chunk *cep)
+{
+ if (!cep->stc)
+ return true;
+ if (cep->w_armed) {
+ event_del(&cep->wevt);
+ cep->w_armed = false;
+ }
+ return stc_put_sync(cep->stc);
+}
+
+/*
+ * Too smart: We auto-arm libevent if not the whole len was returned.
+ * This saves the object.c from the trouble of arming and disarming it,
+ * at the cost of rather subtle semantics.
+ */
+static ssize_t chunk_get_buf(struct open_chunk *cep, void *data, size_t req_len)
+{
+ size_t xfer_len;
+ ssize_t ret;
+
+ if (!cep->stc)
+ return -EDOM;
+
+ if (cep->done + req_len < cep->done) /* wrap */
+ return -EINVAL;
+ if (cep->done + req_len > cep->size)
+ xfer_len = cep->size - cep->done;
+ else
+ xfer_len = req_len;
+ if (xfer_len == 0)
+ return 0;
+ ret = stc_get_recv(cep->stc, data, xfer_len);
+ if (ret < 0)
+ return -EIO;
+
+ cep->done += ret;
+ if (cep->done == cep->size) {
+ cep->done = 0;
+ cep->size = 0;
+ }
+
+ if (xfer_len != ret && cep->size && !cep->r_armed) {
+ cep->r_armed = true;
+ if (event_add(&cep->revt, NULL))
+ cep->r_armed = false;
+ }
+
+ return ret;
+}
+
+static int chunk_obj_del(struct storage_node *stn, uint64_t key)
+{
+ struct st_client *stc;
+ char stckey[STOR_KEY_SLEN+1];
+ int rc;
+
+ rc = stor_new_stc(stn, &stc);
+ if (rc < 0)
+ return rc;
+
+ sprintf(stckey, stor_key_fmt, (unsigned long long) key);
+ rc = stc_delz(stc, stckey) ? 0 : -EIO;
+
+ stc_free(stc);
+
+ return rc;
+}
+
+/*
+ * XXX WTF?! This accidentially tests a node instead of object! FIXME
+ */
+static bool chunk_obj_test(struct open_chunk *cep, uint64_t key)
+{
+ struct st_keylist *klist;
+
+ if (!cep->stc)
+ return false;
+
+ klist = stc_keys(cep->stc);
+ if (!klist)
+ return false;
+ stc_free_keylist(klist);
+ return true;
+}
+
+/* Return 0 if the node checks out ok */
+static int chunk_node_check(struct storage_node *stn)
+{
+ struct st_client *stc;
+ int rc;
+
+ if (!stn->hostname)
+ return -1;
+
+ rc = stor_new_stc(stn, &stc);
+ if (rc < 0) {
+ applog(LOG_INFO,
+ "Error %d connecting to chunkd on host %s",
+ rc, stn->hostname);
+ return -1;
+ }
+
+ stc_free(stc);
+ return 0;
+}
+
+struct st_node_ops stor_ops_chunk = {
+ .open = chunk_open,
+ .open_read = chunk_open_read,
+ .close = chunk_close,
+ .abort = chunk_abort,
+ .put_start = chunk_put_start,
+ .put_buf = chunk_put_buf,
+ .put_end = chunk_put_end,
+ .get_buf = chunk_get_buf,
+ .obj_del = chunk_obj_del,
+ .obj_test = chunk_obj_test,
+ .node_check = chunk_node_check,
+};
+
diff --git a/server/storage.c b/server/storage.c
index 1d3d6a1..b0278a0 100644
--- a/server/storage.c
+++ b/server/storage.c
@@ -27,13 +27,9 @@
#include <syslog.h>
#include <string.h>
#include <event.h>
-#include <chunkc.h>
#include <netdb.h>
#include "tabled.h"
-static const char stor_key_fmt[] = "%016llx";
-#define STOR_KEY_SLEN 16
-
struct storage_node *stor_node_get(struct storage_node *sn)
{
sn->ref++;
@@ -54,365 +50,6 @@ void stor_node_put(struct storage_node *sn)
--sn->ref;
}
-static int stor_new_stc(struct storage_node *stn, struct st_client **stcp)
-{
- struct st_client *stc;
- struct sockaddr_in *a4;
- struct sockaddr_in6 *a6;
- unsigned short port;
-
- if (stn->addr.sin6_family == AF_INET) {
- a4 = (struct sockaddr_in *) &stn->addr;
- port = ntohs(a4->sin_port);
- } else if (stn->addr.sin6_family == AF_INET6) {
- a6 = &stn->addr;
- port = ntohs(a6->sin6_port);
- } else {
- return -EINVAL;
- }
-
- stc = stc_new(stn->hostname, port,
- tabled_srv.chunk_user, tabled_srv.chunk_key,
- false);
- if (!stc)
- return -EDOM;
-
- if (!stc_table_openz(stc, "tabled", CHF_TBL_CREAT)) {
- stc_free(stc);
- return -EDOM;
- }
-
- *stcp = stc;
- return 0;
-}
-
-static void stor_read_event(int fd, short events, void *userdata)
-{
- struct open_chunk *cep = userdata;
-
- cep->r_armed = false; /* no EV_PERSIST */
- if (cep->ocb)
- (*cep->ocb)(cep);
-}
-
-static void stor_write_event(int fd, short events, void *userdata)
-{
- struct open_chunk *cep = userdata;
-
- cep->w_armed = false; /* no EV_PERSIST */
- if (cep->ocb)
- (*cep->ocb)(cep);
-}
-
-/*
- * Open *cep using stn, set up chunk session if needed.
- */
-static int chunk_open(struct open_chunk *cep, struct storage_node *stn,
- struct event_base *ev_base)
-{
- int rc;
-
- if (cep->stc)
- return 0;
-
- if ((rc = stor_new_stc(stn, &cep->stc)) < 0)
- return rc;
-
- cep->evbase = ev_base;
- cep->node = stor_node_get(stn);
-
- /* cep->stc->verbose = 1; */
-
- return 0;
-}
-
-static int chunk_put_start(struct open_chunk *cep,
- void (*cb)(struct open_chunk *),
- uint64_t key, uint64_t size)
-{
- char stckey[STOR_KEY_SLEN+1];
-
- if (cep->key)
- return -EBUSY;
- if (!cep->stc)
- return -EINVAL;
-
- /*
- * Set up the putting.
- */
- sprintf(stckey, stor_key_fmt, (unsigned long long) key);
- if (!stc_put_startz(cep->stc, stckey, size, &cep->wfd, 0)) {
- if (debugging)
- applog(LOG_INFO,
- "stor nid %u put %s new for %lld error",
- cep->node->id, stckey, (long long) size);
- return -EIO;
- }
- cep->size = size;
- cep->done = 0;
- cep->key = key;
- cep->ocb = cb;
- event_set(&cep->wevt, cep->wfd, EV_WRITE, stor_write_event, cep);
- event_base_set(cep->evbase, &cep->wevt);
-
- if (debugging)
- applog(LOG_INFO, "stor nid %u put %s new for %lld",
- cep->node->id, stckey, (long long) size);
-
- return 0;
-}
-
-static int chunk_open_read(struct open_chunk *cep,
- void (*cb)(struct open_chunk *),
- uint64_t key, uint64_t *psize)
-{
- char stckey[STOR_KEY_SLEN+1];
- uint64_t size;
-
- if (cep->key)
- return -EBUSY;
- if (!cep->stc)
- return -EINVAL;
-
- if (cep->size && cep->done != cep->size) {
- applog(LOG_ERR, "Unfinished Get (%ld,%ld)",
- (long)cep->done, (long)cep->size);
- cep->size = 0;
- }
-
- sprintf(stckey, stor_key_fmt, (unsigned long long) key);
- if (!stc_get_startz(cep->stc, stckey, &cep->rfd, &size)) {
- if (debugging)
- applog(LOG_INFO, "stor nid %u get %s error",
- cep->node->id, stckey);
- return -EIO;
- }
- *psize = size;
- cep->size = size;
- cep->done = 0;
- cep->key = key;
- cep->ocb = cb;
- event_set(&cep->revt, cep->rfd, EV_READ, stor_read_event, cep);
- event_base_set(cep->evbase, &cep->revt);
-
- if (debugging)
- applog(LOG_INFO, "stor nid %u get %s size %lld",
- cep->node->id, stckey, (long long) size);
-
- return 0;
-}
-
-/*
- * FIXME We don't cache sessions while tabled is being debugged. Maybe later.
- */
-static void chunk_close(struct open_chunk *cep)
-{
- if (cep->stc) {
- stor_node_put(cep->node);
- cep->node = NULL;
- stc_free(cep->stc);
- cep->stc = NULL;
- }
-
- if (cep->r_armed) {
- event_del(&cep->revt);
- cep->r_armed = false;
- }
- cep->size = 0;
-
- if (cep->w_armed) {
- event_del(&cep->wevt);
- cep->w_armed = false;
- }
-
- cep->key = 0;
-}
-
-/*
- * There's no "abort" call for an existing transfer. We could complete
- * the transfer instead of trashing the whole session, but that may involve
- * sending or receiving gigabytes. So we just cycle the session.
- */
-static void chunk_abort(struct open_chunk *cep)
-{
- char stckey[STOR_KEY_SLEN+1];
- int rc;
-
- if (!cep->stc)
- return;
-
- if (debugging)
- applog(LOG_INFO, "stor aborting");
-
- stc_free(cep->stc);
- cep->stc = NULL;
-
- rc = stor_new_stc(cep->node, &cep->stc);
- if (rc < 0) {
- stor_node_put(cep->node);
- cep->node = NULL;
-
- if (debugging)
- applog(LOG_INFO, "Failed to reopen Chunk nid %u (%d)",
- cep->node->id, rc);
-
- cep->size = 0;
- cep->done = 0;
- cep->key = 0;
- return;
- }
-
- if (cep->done != cep->size) {
- sprintf(stckey, stor_key_fmt, (unsigned long long) cep->key);
- stc_delz(cep->stc, stckey);
- }
-
- if (cep->r_armed) {
- event_del(&cep->revt);
- cep->r_armed = false;
- }
-
- if (cep->w_armed) {
- event_del(&cep->wevt);
- cep->w_armed = false;
- }
-
- cep->size = 0;
- cep->done = 0;
-
- cep->key = 0;
-}
-
-static ssize_t chunk_put_buf(struct open_chunk *cep, void *data, size_t len)
-{
- int rc;
-
- if (cep->done + len > cep->size) {
- applog(LOG_ERR, "Put size %ld remaining %ld",
- (long) len, (long) (cep->size - cep->done));
- if (cep->done == cep->size)
- return -EIO; /* will spin otherwise, better error */
- len = cep->size - cep->done;
- }
-
- if (!cep->stc)
- return -EPIPE;
- rc = stc_put_send(cep->stc, data, len);
- if (rc < len && !cep->w_armed) {
- event_add(&cep->wevt, NULL);
- cep->w_armed = true;
- }
- cep->done += rc;
- return rc;
-}
-
-static bool chunk_put_end(struct open_chunk *cep)
-{
- if (!cep->stc)
- return true;
- if (cep->w_armed) {
- event_del(&cep->wevt);
- cep->w_armed = false;
- }
- return stc_put_sync(cep->stc);
-}
-
-/*
- * Too smart: We auto-arm libevent if not the whole len was returned.
- * This saves the object.c from the trouble of arming and disarming it,
- * at the cost of rather subtle semantics.
- */
-static ssize_t chunk_get_buf(struct open_chunk *cep, void *data, size_t req_len)
-{
- size_t xfer_len;
- ssize_t ret;
-
- if (!cep->stc)
- return -EDOM;
-
- if (cep->done + req_len < cep->done) /* wrap */
- return -EINVAL;
- if (cep->done + req_len > cep->size)
- xfer_len = cep->size - cep->done;
- else
- xfer_len = req_len;
- if (xfer_len == 0)
- return 0;
- ret = stc_get_recv(cep->stc, data, xfer_len);
- if (ret < 0)
- return -EIO;
-
- cep->done += ret;
- if (cep->done == cep->size) {
- cep->done = 0;
- cep->size = 0;
- }
-
- if (xfer_len != ret && cep->size && !cep->r_armed) {
- cep->r_armed = true;
- if (event_add(&cep->revt, NULL))
- cep->r_armed = false;
- }
-
- return ret;
-}
-
-static int chunk_obj_del(struct storage_node *stn, uint64_t key)
-{
- struct st_client *stc;
- char stckey[STOR_KEY_SLEN+1];
- int rc;
-
- rc = stor_new_stc(stn, &stc);
- if (rc < 0)
- return rc;
-
- sprintf(stckey, stor_key_fmt, (unsigned long long) key);
- rc = stc_delz(stc, stckey) ? 0 : -EIO;
-
- stc_free(stc);
-
- return rc;
-}
-
-/*
- * XXX WTF?! This accidentially tests a node instead of object! FIXME
- */
-static bool chunk_obj_test(struct open_chunk *cep, uint64_t key)
-{
- struct st_keylist *klist;
-
- if (!cep->stc)
- return false;
-
- klist = stc_keys(cep->stc);
- if (!klist)
- return false;
- stc_free_keylist(klist);
- return true;
-}
-
-/* Return 0 if the node checks out ok */
-static int chunk_node_check(struct storage_node *stn)
-{
- struct st_client *stc;
- int rc;
-
- if (!stn->hostname)
- return -1;
-
- rc = stor_new_stc(stn, &stc);
- if (rc < 0) {
- applog(LOG_INFO,
- "Error %d connecting to chunkd on host %s",
- rc, stn->hostname);
- return -1;
- }
-
- stc_free(stc);
- return 0;
-}
-
static struct storage_node *_stor_node_by_nid(uint32_t nid)
{
struct storage_node *sn;
@@ -436,20 +73,6 @@ struct storage_node *stor_node_by_nid(uint32_t nid)
return sn;
}
-struct st_node_ops stor_ops_chunk = {
- .open = chunk_open,
- .open_read = chunk_open_read,
- .close = chunk_close,
- .abort = chunk_abort,
- .put_start = chunk_put_start,
- .put_buf = chunk_put_buf,
- .put_end = chunk_put_end,
- .get_buf = chunk_get_buf,
- .obj_del = chunk_obj_del,
- .obj_test = chunk_obj_test,
- .node_check = chunk_node_check,
-};
-
static int stor_add_node_addr(struct storage_node *sn,
const char *hostname, const char *portstr)
{
diff --git a/server/tabled.h b/server/tabled.h
index 6ab32a3..27bc7c1 100644
--- a/server/tabled.h
+++ b/server/tabled.h
@@ -497,6 +497,9 @@ extern bool stor_status(struct client *cli, GList *content);
/* storparse.c */
extern void stor_parse(char *fname, const char *text, size_t len);
+/* stor_chunk.c */
+extern struct st_node_ops stor_ops_chunk;
+
/* replica.c */
extern void rep_init(struct event_base *ev_base);
extern void rep_start(void);
--
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