- add prefix for sheep helpers
- rename sd_{read, write}_object as dog_xxx in dog

Signed-off-by: Liu Yuan <[email protected]>
---
 dog/common.c                  |   21 ++++----
 dog/dog.h                     |   10 ++--
 dog/farm/farm.c               |    4 +-
 dog/vdi.c                     |   66 ++++++++++++-----------
 sheep/http/kv.c               |   42 ++++++++-------
 sheep/ops.c                   |    8 +--
 sheep/sheep_priv.h            |   10 ++--
 sheep/store.c                 |   10 ++--
 sheep/vdi.c                   |  116 +++++++++++++++++++++--------------------
 tests/unit/sheep/mock_store.c |    6 +--
 10 files changed, 151 insertions(+), 142 deletions(-)

diff --git a/dog/common.c b/dog/common.c
index 59d38dc..546690a 100644
--- a/dog/common.c
+++ b/dog/common.c
@@ -55,8 +55,8 @@ char *strnumber(uint64_t size)
        return strnumber_raw(size, raw_output);
 }
 
-int sd_read_object(uint64_t oid, void *data, unsigned int datalen,
-                  uint64_t offset, bool direct)
+int dog_read_object(uint64_t oid, void *data, unsigned int datalen,
+                   uint64_t offset, bool direct)
 {
        struct sd_req hdr;
        struct sd_rsp *rsp = (struct sd_rsp *)&hdr;
@@ -85,10 +85,10 @@ int sd_read_object(uint64_t oid, void *data, unsigned int 
datalen,
        return SD_RES_SUCCESS;
 }
 
-int sd_write_object(uint64_t oid, uint64_t cow_oid, void *data,
-                   unsigned int datalen, uint64_t offset, uint32_t flags,
-                   uint8_t copies, uint8_t copy_policy, bool create,
-                   bool direct)
+int dog_write_object(uint64_t oid, uint64_t cow_oid, void *data,
+                    unsigned int datalen, uint64_t offset, uint32_t flags,
+                    uint8_t copies, uint8_t copy_policy, bool create,
+                    bool direct)
 {
        struct sd_req hdr;
        struct sd_rsp *rsp = (struct sd_rsp *)&hdr;
@@ -156,8 +156,8 @@ int parse_vdi(vdi_parser_func_t func, size_t size, void 
*data)
                oid = vid_to_vdi_oid(nr);
 
                /* for B-tree inode, we also need sd_extent_header */
-               ret = sd_read_object(oid, &i, SD_INODE_HEADER_SIZE +
-                                    sizeof(struct sd_extent_header), 0, true);
+               ret = dog_read_object(oid, &i, SD_INODE_HEADER_SIZE +
+                                     sizeof(struct sd_extent_header), 0, true);
                if (ret != SD_RES_SUCCESS) {
                        sd_err("Failed to read inode header");
                        continue;
@@ -168,8 +168,9 @@ int parse_vdi(vdi_parser_func_t func, size_t size, void 
*data)
 
                if (size > SD_INODE_HEADER_SIZE) {
                        rlen = sd_inode_get_meta_size(&i, size);
-                       ret = sd_read_object(oid, ((char *)&i) + 
SD_INODE_HEADER_SIZE,
-                                            rlen, SD_INODE_HEADER_SIZE, true);
+                       ret = dog_read_object(oid,
+                                       ((char *)&i) + SD_INODE_HEADER_SIZE,
+                                             rlen, SD_INODE_HEADER_SIZE, true);
 
                        if (ret != SD_RES_SUCCESS) {
                                sd_err("Failed to read inode");
diff --git a/dog/dog.h b/dog/dog.h
index af3cefa..73518d4 100644
--- a/dog/dog.h
+++ b/dog/dog.h
@@ -71,11 +71,11 @@ typedef void (*vdi_parser_func_t)(uint32_t vid, const char 
*name,
                                  uint32_t flags,
                                  const struct sd_inode *i, void *data);
 int parse_vdi(vdi_parser_func_t func, size_t size, void *data);
-int sd_read_object(uint64_t oid, void *data, unsigned int datalen,
-                  uint64_t offset, bool direct);
-int sd_write_object(uint64_t oid, uint64_t cow_oid, void *data,
-                   unsigned int datalen, uint64_t offset, uint32_t flags,
-                   uint8_t copies, uint8_t, bool create, bool direct);
+int dog_read_object(uint64_t oid, void *data, unsigned int datalen,
+                   uint64_t offset, bool direct);
+int dog_write_object(uint64_t oid, uint64_t cow_oid, void *data,
+                    unsigned int datalen, uint64_t offset, uint32_t flags,
+                    uint8_t copies, uint8_t, bool create, bool direct);
 int dog_exec_req(const struct node_id *, struct sd_req *hdr, void *data);
 int send_light_req(const struct node_id *, struct sd_req *hdr);
 int do_generic_subcommand(struct subcommand *sub, int argc, char **argv);
diff --git a/dog/farm/farm.c b/dog/farm/farm.c
index 3886445..07dcbd4 100644
--- a/dog/farm/farm.c
+++ b/dog/farm/farm.c
@@ -253,7 +253,7 @@ static void do_save_object(struct work *work)
        size = get_objsize(sw->entry.oid);
        buf = xmalloc(size);
 
-       if (sd_read_object(sw->entry.oid, buf, size, 0, true) < 0)
+       if (dog_read_object(sw->entry.oid, buf, size, 0, true) < 0)
                goto error;
 
        if (slice_write(buf, size, sw->entry.sha1) < 0)
@@ -364,7 +364,7 @@ static void do_load_object(struct work *work)
        if (!buffer)
                goto error;
 
-       if (sd_write_object(sw->entry.oid, 0, buffer, size, 0, 0,
+       if (dog_write_object(sw->entry.oid, 0, buffer, size, 0, 0,
                            sw->entry.nr_copies, sw->entry.copy_policy,
                            true, true) != 0)
                goto error;
diff --git a/dog/vdi.c b/dog/vdi.c
index bfee11f..399b17c 100644
--- a/dog/vdi.c
+++ b/dog/vdi.c
@@ -64,14 +64,14 @@ int dog_bnode_writer(uint64_t oid, void *mem, unsigned int 
len, uint64_t offset,
                     uint32_t flags, int copies, int copy_policy, bool create,
                     bool direct)
 {
-       return sd_write_object(oid, 0, mem, len, offset, flags, copies,
+       return dog_write_object(oid, 0, mem, len, offset, flags, copies,
                               copy_policy, create, direct);
 }
 
 int dog_bnode_reader(uint64_t oid, void **mem, unsigned int len,
                     uint64_t offset)
 {
-       return sd_read_object(oid, *mem, len, offset, true);
+       return dog_read_object(oid, *mem, len, offset, true);
 }
 
 static inline bool is_data_obj_writeable(const struct sd_inode *inode,
@@ -513,7 +513,7 @@ static int read_vdi_obj(const char *vdiname, int snapid, 
const char *tag,
                return EXIT_FAILURE;
        }
 
-       ret = sd_read_object(vid_to_vdi_oid(vid), inode, size, 0, true);
+       ret = dog_read_object(vid_to_vdi_oid(vid), inode, size, 0, true);
        if (ret != SD_RES_SUCCESS) {
                if (snapid) {
                        sd_err("Failed to read a snapshot %s:%d", vdiname,
@@ -615,7 +615,8 @@ static int vdi_create(int argc, char **argv)
 
        inode = xmalloc(sizeof(*inode));
 
-       ret = sd_read_object(vid_to_vdi_oid(vid), inode, sizeof(*inode), 0, 
true);
+       ret = dog_read_object(vid_to_vdi_oid(vid), inode, sizeof(*inode), 0,
+                             true);
        if (ret != SD_RES_SUCCESS) {
                sd_err("Failed to read a newly created VDI object");
                ret = EXIT_FAILURE;
@@ -627,7 +628,7 @@ static int vdi_create(int argc, char **argv)
                vdi_show_progress(idx * SD_DATA_OBJ_SIZE, inode->vdi_size);
                oid = vid_to_data_oid(vid, idx);
 
-               ret = sd_write_object(oid, 0, NULL, 0, 0, 0, inode->nr_copies,
+               ret = dog_write_object(oid, 0, NULL, 0, 0, 0, inode->nr_copies,
                                      inode->copy_policy, true, true);
                if (ret != SD_RES_SUCCESS) {
                        ret = EXIT_FAILURE;
@@ -675,11 +676,12 @@ static int vdi_snapshot(int argc, char **argv)
        if (ret != EXIT_SUCCESS)
                return ret;
 
-       ret = sd_write_object(vid_to_vdi_oid(vid), 0, vdi_cmd_data.snapshot_tag,
-                             SD_MAX_VDI_TAG_LEN,
-                             offsetof(struct sd_inode, tag),
-                             0, inode->nr_copies, inode->copy_policy,
-                             false, false);
+       ret = dog_write_object(vid_to_vdi_oid(vid), 0,
+                              vdi_cmd_data.snapshot_tag,
+                              SD_MAX_VDI_TAG_LEN,
+                              offsetof(struct sd_inode, tag),
+                              0, inode->nr_copies, inode->copy_policy,
+                              false, false);
        if (ret != SD_RES_SUCCESS)
                return EXIT_FAILURE;
 
@@ -750,7 +752,8 @@ static int vdi_clone(int argc, char **argv)
                vdi_id = INODE_GET_VID(inode, idx);
                if (vdi_id) {
                        oid = vid_to_data_oid(vdi_id, idx);
-                       ret = sd_read_object(oid, buf, SD_DATA_OBJ_SIZE, 0, 
true);
+                       ret = dog_read_object(oid, buf, SD_DATA_OBJ_SIZE, 0,
+                                             true);
                        if (ret) {
                                ret = EXIT_FAILURE;
                                goto out;
@@ -760,8 +763,9 @@ static int vdi_clone(int argc, char **argv)
                        size = 0;
 
                oid = vid_to_data_oid(new_vid, idx);
-               ret = sd_write_object(oid, 0, buf, size, 0, 0, inode->nr_copies,
-                                     inode->copy_policy, true, true);
+               ret = dog_write_object(oid, 0, buf, size, 0, 0,
+                                      inode->nr_copies,
+                                      inode->copy_policy, true, true);
                if (ret != SD_RES_SUCCESS) {
                        ret = EXIT_FAILURE;
                        goto out;
@@ -829,7 +833,7 @@ static int vdi_resize(int argc, char **argv)
        }
        inode->vdi_size = new_size;
 
-       ret = sd_write_object(vid_to_vdi_oid(vid), 0,
+       ret = dog_write_object(vid_to_vdi_oid(vid), 0,
                              inode, SD_INODE_HEADER_SIZE, 0,
                              0, inode->nr_copies, inode->copy_policy,
                              false, true);
@@ -1263,7 +1267,7 @@ static int vdi_getattr(int argc, char **argv)
 
        oid = attr_oid;
 
-       ret = sd_read_object(oid, &vattr, SD_ATTR_OBJ_SIZE, 0, true);
+       ret = dog_read_object(oid, &vattr, SD_ATTR_OBJ_SIZE, 0, true);
        if (ret != SD_RES_SUCCESS) {
                sd_err("Failed to read attribute oid: %s", sd_strerror(ret));
                return EXIT_SYSFAIL;
@@ -1317,7 +1321,7 @@ static int vdi_read(int argc, char **argv)
                vdi_id = INODE_GET_VID(inode, idx);
                if (vdi_id) {
                        oid = vid_to_data_oid(vdi_id, idx);
-                       ret = sd_read_object(oid, buf, len, offset, false);
+                       ret = dog_read_object(oid, buf, len, offset, false);
                        if (ret != SD_RES_SUCCESS) {
                                sd_err("Failed to read VDI");
                                ret = EXIT_FAILURE;
@@ -1414,7 +1418,7 @@ static int vdi_write(int argc, char **argv)
 
                INODE_SET_VID(inode, idx, inode->vdi_id);
                oid = vid_to_data_oid(inode->vdi_id, idx);
-               ret = sd_write_object(oid, old_oid, buf, len, offset, flags,
+               ret = dog_write_object(oid, old_oid, buf, len, offset, flags,
                                      inode->nr_copies, inode->copy_policy,
                                      create, false);
                if (ret != SD_RES_SUCCESS) {
@@ -1943,8 +1947,8 @@ static int get_obj_backup(uint32_t idx, uint32_t 
from_vid, uint32_t to_vid,
        backup->length = SD_DATA_OBJ_SIZE;
 
        if (to_vid) {
-               ret = sd_read_object(vid_to_data_oid(to_vid, idx), backup->data,
-                                    SD_DATA_OBJ_SIZE, 0, true);
+               ret = dog_read_object(vid_to_data_oid(to_vid, idx),
+                                     backup->data, SD_DATA_OBJ_SIZE, 0, true);
                if (ret != SD_RES_SUCCESS) {
                        sd_err("Failed to read object %" PRIx32 ", %d", to_vid,
                               idx);
@@ -1954,8 +1958,8 @@ static int get_obj_backup(uint32_t idx, uint32_t 
from_vid, uint32_t to_vid,
                memset(backup->data, 0, SD_DATA_OBJ_SIZE);
 
        if (from_vid) {
-               ret = sd_read_object(vid_to_data_oid(from_vid, idx), from_data,
-                                    SD_DATA_OBJ_SIZE, 0, true);
+               ret = dog_read_object(vid_to_data_oid(from_vid, idx), from_data,
+                                     SD_DATA_OBJ_SIZE, 0, true);
                if (ret != SD_RES_SUCCESS) {
                        sd_err("Failed to read object %" PRIx32 ", %d",
                               from_vid, idx);
@@ -2074,17 +2078,17 @@ static int restore_obj(struct obj_backup *backup, 
uint32_t vid,
                parent_oid = vid_to_data_oid(parent_vid, backup->idx);
 
        /* send a copy-on-write request */
-       ret = sd_write_object(vid_to_data_oid(vid, backup->idx), parent_oid,
-                             backup->data, backup->length, backup->offset,
-                             0, parent_inode->nr_copies,
-                             parent_inode->copy_policy, true, true);
+       ret = dog_write_object(vid_to_data_oid(vid, backup->idx), parent_oid,
+                              backup->data, backup->length, backup->offset,
+                              0, parent_inode->nr_copies,
+                              parent_inode->copy_policy, true, true);
        if (ret != SD_RES_SUCCESS)
                return ret;
 
-       return sd_write_object(vid_to_vdi_oid(vid), 0, &vid, sizeof(vid),
-                              SD_INODE_HEADER_SIZE + sizeof(vid) * backup->idx,
-                              0, parent_inode->nr_copies,
-                              parent_inode->copy_policy, false, true);
+       return dog_write_object(vid_to_vdi_oid(vid), 0, &vid, sizeof(vid),
+                       SD_INODE_HEADER_SIZE + sizeof(vid) * backup->idx,
+                               0, parent_inode->nr_copies,
+                               parent_inode->copy_policy, false, true);
 }
 
 static uint32_t do_restore(const char *vdiname, int snapid, const char *tag)
@@ -2190,7 +2194,7 @@ static int vdi_restore(int argc, char **argv)
        if (ret != EXIT_SUCCESS)
                goto out;
 
-       ret = sd_read_object(vid_to_vdi_oid(current_inode->parent_vdi_id),
+       ret = dog_read_object(vid_to_vdi_oid(current_inode->parent_vdi_id),
                             parent_inode, SD_INODE_HEADER_SIZE, 0, true);
        if (ret != SD_RES_SUCCESS) {
                printf("error\n");
@@ -2291,7 +2295,7 @@ static int vid_to_name_tag(uint32_t vid, char *name, char 
*tag)
        struct sd_inode inode;
        int ret;
 
-       ret = sd_read_object(vid_to_vdi_oid(vid), &inode, SD_INODE_HEADER_SIZE,
+       ret = dog_read_object(vid_to_vdi_oid(vid), &inode, SD_INODE_HEADER_SIZE,
                             0, true);
        if (ret != SD_RES_SUCCESS)
                return ret;
diff --git a/sheep/http/kv.c b/sheep/http/kv.c
index c04e629..8113389 100644
--- a/sheep/http/kv.c
+++ b/sheep/http/kv.c
@@ -147,7 +147,8 @@ int kv_list_buckets(struct http_request *req,
 
                oid = vid_to_vdi_oid(nr);
 
-               ret = read_object(oid, (char *)inode, SD_INODE_HEADER_SIZE, 0);
+               ret = sd_read_object(oid, (char *)inode, SD_INODE_HEADER_SIZE,
+                                    0);
                if (ret != SD_RES_SUCCESS) {
                        sd_err("Failed to read inode header");
                        continue;
@@ -212,17 +213,17 @@ static int kv_create_inlined_object(struct sd_inode 
*inode,
 
        if (overwrite) {
                sd_info("overwrite object %s", onode->hdr.name);
-               ret = write_object(oid, (char *)onode,
-                                  sizeof(onode->hdr) + onode->hdr.size,
-                                  0, false);
+               ret = sd_write_object(oid, (char *)onode,
+                                     sizeof(onode->hdr) + onode->hdr.size,
+                                     0, false);
                if (ret != SD_RES_SUCCESS) {
                        sd_err("failed to write object, %" PRIx64, oid);
                        goto out;
                }
        } else {
-               ret = write_object(oid, (char *)onode,
-                                  sizeof(onode->hdr) + onode->hdr.size,
-                                  0, true);
+               ret = sd_write_object(oid, (char *)onode,
+                                     sizeof(onode->hdr) + onode->hdr.size,
+                                     0, true);
                if (ret != SD_RES_SUCCESS) {
                        sd_err("failed to create object, %" PRIx64, oid);
                        goto out;
@@ -261,8 +262,8 @@ static int do_kv_create_object(struct http_request *req,
        uint32_t tmp_vid;
        int ret;
 
-       ret = read_object(vid_to_vdi_oid(vid), (char *)inode,
-                         sizeof(*inode), 0);
+       ret = sd_read_object(vid_to_vdi_oid(vid), (char *)inode,
+                            sizeof(*inode), 0);
        if (ret != SD_RES_SUCCESS) {
                sd_err("failed to read inode, %" PRIx64,
                       vid_to_vdi_oid(vid));
@@ -270,7 +271,7 @@ static int do_kv_create_object(struct http_request *req,
        }
        tmp_vid = INODE_GET_VID(inode, idx);
        if (tmp_vid) {
-               ret = read_object(oid, (char *)&hdr, sizeof(hdr), 0);
+               ret = sd_read_object(oid, (char *)&hdr, sizeof(hdr), 0);
                if (ret != SD_RES_SUCCESS) {
                        sd_err("failed to read object, %" PRIx64, oid);
                        goto out;
@@ -356,7 +357,7 @@ static int do_kv_read_object(struct http_request *req, 
const char *obj_name,
        uint64_t oid = vid_to_data_oid(vid, idx);
        int ret;
 
-       ret = read_object(oid, (char *)obj, sizeof(*obj), 0);
+       ret = sd_read_object(oid, (char *)obj, sizeof(*obj), 0);
        switch (ret) {
        case SD_RES_SUCCESS:
                break;
@@ -418,7 +419,7 @@ static int do_kv_update_object(struct http_request *req, 
const char *obj_name,
        uint64_t oid = vid_to_data_oid(vid, idx);
        int ret;
 
-       ret = read_object(oid, (char *)&obj->hdr, sizeof(obj->hdr), 0);
+       ret = sd_read_object(oid, (char *)&obj->hdr, sizeof(obj->hdr), 0);
        switch (ret) {
        case SD_RES_SUCCESS:
                break;
@@ -439,8 +440,9 @@ static int do_kv_update_object(struct http_request *req, 
const char *obj_name,
                obj->hdr.mtime = (uint64_t) tv.tv_sec << 32 | tv.tv_usec * 1000;
                obj->hdr.size = size;
 
-               ret = write_object(oid, (char *)obj,
-                                  sizeof(obj->hdr) + obj->hdr.size, 0, false);
+               ret = sd_write_object(oid, (char *)obj,
+                                     sizeof(obj->hdr) + obj->hdr.size,
+                                     0, false);
                if (ret == SD_RES_SUCCESS)
                        http_response_header(req, ACCEPTED);
                else {
@@ -501,7 +503,7 @@ static int do_kv_delete_object(struct http_request *req, 
const char *obj_name,
        char name[SD_MAX_OBJECT_NAME];
        int ret;
 
-       ret = read_object(oid, name, sizeof(name), 0);
+       ret = sd_read_object(oid, name, sizeof(name), 0);
        switch (ret) {
        case SD_RES_SUCCESS:
                break;
@@ -517,7 +519,7 @@ static int do_kv_delete_object(struct http_request *req, 
const char *obj_name,
 
        if (strcmp(name, obj_name) == 0) {
                memset(name, 0, sizeof(name));
-               ret = write_object(oid, name, sizeof(name), 0, false);
+               ret = sd_write_object(oid, name, sizeof(name), 0, false);
                if (ret == SD_RES_SUCCESS)
                        http_response_header(req, NO_CONTENT);
                else {
@@ -569,9 +571,9 @@ int kv_list_objects(struct http_request *req, const char 
*bucket,
                return ret;
 
        inode = xzalloc(sizeof(*inode));
-       ret = read_object(vid_to_vdi_oid(vid), (char *)inode->data_vdi_id,
-                         sizeof(inode->data_vdi_id),
-                         offsetof(typeof(*inode), data_vdi_id));
+       ret = sd_read_object(vid_to_vdi_oid(vid), (char *)inode->data_vdi_id,
+                            sizeof(inode->data_vdi_id),
+                            offsetof(typeof(*inode), data_vdi_id));
        if (ret != SD_RES_SUCCESS) {
                sd_err("%s: bucket %s", sd_strerror(ret), bucket);
                http_response_header(req, INTERNAL_SERVER_ERROR);
@@ -589,7 +591,7 @@ int kv_list_objects(struct http_request *req, const char 
*bucket,
 
                oid = vid_to_data_oid(vid, idx);
 
-               ret = read_object(oid, name, sizeof(name), 0);
+               ret = sd_read_object(oid, name, sizeof(name), 0);
                switch (ret) {
                case SD_RES_SUCCESS:
                        if (name[0] != '\0')
diff --git a/sheep/ops.c b/sheep/ops.c
index 43876d4..b626489 100644
--- a/sheep/ops.c
+++ b/sheep/ops.c
@@ -824,8 +824,8 @@ static int local_discard_obj(struct request *req)
        struct sd_inode *inode = xmalloc(sizeof(struct sd_inode));
 
        sd_debug("%"PRIx64, oid);
-       ret = read_object(vid_to_vdi_oid(vid), (char *)inode,
-                       sizeof(struct sd_inode), 0);
+       ret = sd_read_object(vid_to_vdi_oid(vid), (char *)inode,
+                            sizeof(struct sd_inode), 0);
        if (ret != SD_RES_SUCCESS)
                goto out;
 
@@ -837,11 +837,11 @@ static int local_discard_obj(struct request *req)
                                         zero, 0, false, false);
                if (ret != SD_RES_SUCCESS)
                        goto out;
-               if (remove_object(oid) != SD_RES_SUCCESS)
+               if (sd_remove_object(oid) != SD_RES_SUCCESS)
                        sd_err("failed to remove %"PRIx64, oid);
        }
        /*
-        * Return success even if remove_object fails because we have updated
+        * Return success even if sd_remove_object fails because we have updated
         * inode successfully.
         */
 out:
diff --git a/sheep/sheep_priv.h b/sheep/sheep_priv.h
index d333573..685aeb3 100644
--- a/sheep/sheep_priv.h
+++ b/sheep/sheep_priv.h
@@ -361,11 +361,11 @@ void get_recovery_state(struct recovery_state *state);
 
 int read_backend_object(uint64_t oid, char *data, unsigned int datalen,
                       uint64_t offset);
-int write_object(uint64_t oid, char *data, unsigned int datalen,
-                uint64_t offset, bool create);
-int read_object(uint64_t oid, char *data, unsigned int datalen,
-               uint64_t offset);
-int remove_object(uint64_t oid);
+int sd_write_object(uint64_t oid, char *data, unsigned int datalen,
+                   uint64_t offset, bool create);
+int sd_read_object(uint64_t oid, char *data, unsigned int datalen,
+                  uint64_t offset);
+int sd_remove_object(uint64_t oid);
 
 int exec_local_req(struct sd_req *rq, void *data);
 void local_req_init(void);
diff --git a/sheep/store.c b/sheep/store.c
index b092dea..d67a215 100644
--- a/sheep/store.c
+++ b/sheep/store.c
@@ -346,8 +346,8 @@ int init_global_pathnames(const char *d, char *argp)
 }
 
 /* Write data to both local object cache (if enabled) and backends */
-int write_object(uint64_t oid, char *data, unsigned int datalen,
-                uint64_t offset, bool create)
+int sd_write_object(uint64_t oid, char *data, unsigned int datalen,
+                   uint64_t offset, bool create)
 {
        struct sd_req hdr;
        int ret;
@@ -406,8 +406,8 @@ int read_backend_object(uint64_t oid, char *data, unsigned 
int datalen,
  * Read data firstly from local object cache(if enabled), if fail,
  * try read backends
  */
-int read_object(uint64_t oid, char *data, unsigned int datalen,
-               uint64_t offset)
+int sd_read_object(uint64_t oid, char *data, unsigned int datalen,
+                  uint64_t offset)
 {
        int ret;
 
@@ -425,7 +425,7 @@ forward_read:
        return read_backend_object(oid, data, datalen, offset);
 }
 
-int remove_object(uint64_t oid)
+int sd_remove_object(uint64_t oid)
 {
        struct sd_req hdr;
        int ret;
diff --git a/sheep/vdi.c b/sheep/vdi.c
index 5b2be97..60bc52d 100644
--- a/sheep/vdi.c
+++ b/sheep/vdi.c
@@ -33,13 +33,13 @@ int sheep_bnode_writer(uint64_t oid, void *mem, unsigned 
int len,
                       uint64_t offset, uint32_t flags, int copies,
                       int copy_policy, bool create, bool direct)
 {
-       return write_object(oid, mem, len, offset, create);
+       return sd_write_object(oid, mem, len, offset, create);
 }
 
 int sheep_bnode_reader(uint64_t oid, void **mem, unsigned int len,
                       uint64_t offset)
 {
-       return read_object(oid, *mem, len, offset);
+       return sd_read_object(oid, *mem, len, offset);
 }
 
 static int vdi_state_cmp(const struct vdi_state_entry *a,
@@ -202,8 +202,8 @@ int vdi_exist(uint32_t vid)
        int ret = 1;
 
        inode = xzalloc(sizeof(*inode));
-       ret = read_object(vid_to_vdi_oid(vid), (char *)inode,
-                         sizeof(*inode), 0);
+       ret = sd_read_object(vid_to_vdi_oid(vid), (char *)inode,
+                            sizeof(*inode), 0);
        if (ret != SD_RES_SUCCESS) {
                sd_err("fail to read vdi inode (%" PRIx32 ")", vid);
                ret = 0;
@@ -270,8 +270,8 @@ static int create_vdi(const struct vdi_iocb *iocb, uint32_t 
new_snapid,
                 iocb->name, iocb->size, new_vid, iocb->nr_copies, new_snapid,
                 new->copy_policy, new->store_policy);
 
-       ret = write_object(vid_to_vdi_oid(new_vid), (char *)new, sizeof(*new),
-                          0, true);
+       ret = sd_write_object(vid_to_vdi_oid(new_vid), (char *)new,
+                             sizeof(*new), 0, true);
        if (ret != SD_RES_SUCCESS)
                ret = SD_RES_VDI_WRITE;
 
@@ -306,8 +306,8 @@ static int clone_vdi(const struct vdi_iocb *iocb, uint32_t 
new_snapid,
                 "copies %d, snapid %" PRIu32, iocb->name, iocb->size, new_vid,
                 base_vid, iocb->nr_copies, new_snapid);
 
-       ret = read_object(vid_to_vdi_oid(base_vid), (char *)base, sizeof(*base),
-                         0);
+       ret = sd_read_object(vid_to_vdi_oid(base_vid), (char *)base,
+                            sizeof(*base), 0);
        if (ret != SD_RES_SUCCESS) {
                ret = SD_RES_BASE_VDI_READ;
                goto out;
@@ -319,12 +319,13 @@ static int clone_vdi(const struct vdi_iocb *iocb, 
uint32_t new_snapid,
                goto out;
        }
 
-       /* TODO: multiple write_object should be performed atomically */
+       /* TODO: multiple sd_write_object should be performed atomically */
 
        /* update a base vdi */
-       ret = write_object(vid_to_vdi_oid(base_vid), (char *)&new_vid,
-                          sizeof(new_vid),
-                          offsetof(struct sd_inode, child_vdi_id[idx]), false);
+       ret = sd_write_object(vid_to_vdi_oid(base_vid), (char *)&new_vid,
+                             sizeof(new_vid),
+                             offsetof(struct sd_inode, child_vdi_id[idx]),
+                             false);
        if (ret != SD_RES_SUCCESS) {
                ret = SD_RES_BASE_VDI_WRITE;
                goto out;
@@ -332,8 +333,8 @@ static int clone_vdi(const struct vdi_iocb *iocb, uint32_t 
new_snapid,
 
        /* create a new vdi */
        new = alloc_inode(iocb, new_snapid, new_vid, base->data_vdi_id);
-       ret = write_object(vid_to_vdi_oid(new_vid), (char *)new, sizeof(*new),
-                          0, true);
+       ret = sd_write_object(vid_to_vdi_oid(new_vid), (char *)new,
+                             sizeof(*new), 0, true);
        if (ret != SD_RES_SUCCESS)
                ret = SD_RES_VDI_WRITE;
 
@@ -369,8 +370,8 @@ static int snapshot_vdi(const struct vdi_iocb *iocb, 
uint32_t new_snapid,
                 "copies %d, snapid %" PRIu32, iocb->name, iocb->size, new_vid,
                 base_vid, iocb->nr_copies, new_snapid);
 
-       ret = read_object(vid_to_vdi_oid(base_vid), (char *)base, sizeof(*base),
-                         0);
+       ret = sd_read_object(vid_to_vdi_oid(base_vid), (char *)base,
+                            sizeof(*base), 0);
        if (ret != SD_RES_SUCCESS) {
                ret = SD_RES_BASE_VDI_READ;
                goto out;
@@ -382,13 +383,13 @@ static int snapshot_vdi(const struct vdi_iocb *iocb, 
uint32_t new_snapid,
                goto out;
        }
 
-       /* TODO: multiple write_object should be performed atomically */
+       /* TODO: multiple sd_write_object should be performed atomically */
 
        /* update a base vdi */
        base->snap_ctime = iocb->time;
        base->child_vdi_id[idx] = new_vid;
-       ret = write_object(vid_to_vdi_oid(base_vid), (char *)base,
-                          SD_INODE_HEADER_SIZE, 0, false);
+       ret = sd_write_object(vid_to_vdi_oid(base_vid), (char *)base,
+                             SD_INODE_HEADER_SIZE, 0, false);
        if (ret != SD_RES_SUCCESS) {
                ret = SD_RES_BASE_VDI_WRITE;
                goto out;
@@ -396,8 +397,8 @@ static int snapshot_vdi(const struct vdi_iocb *iocb, 
uint32_t new_snapid,
 
        /* create a new vdi */
        new = alloc_inode(iocb, new_snapid, new_vid, base->data_vdi_id);
-       ret = write_object(vid_to_vdi_oid(new_vid), (char *)new, sizeof(*new),
-                          0, true);
+       ret = sd_write_object(vid_to_vdi_oid(new_vid), (char *)new,
+                             sizeof(*new), 0, true);
        if (ret != SD_RES_SUCCESS)
                ret = SD_RES_VDI_WRITE;
 
@@ -438,8 +439,8 @@ static int rebase_vdi(const struct vdi_iocb *iocb, uint32_t 
new_snapid,
                 iocb->size, new_vid, base_vid, cur_vid, iocb->nr_copies,
                 new_snapid);
 
-       ret = read_object(vid_to_vdi_oid(base_vid), (char *)base, sizeof(*base),
-                         0);
+       ret = sd_read_object(vid_to_vdi_oid(base_vid), (char *)base,
+                            sizeof(*base), 0);
        if (ret != SD_RES_SUCCESS) {
                ret = SD_RES_BASE_VDI_READ;
                goto out;
@@ -451,21 +452,22 @@ static int rebase_vdi(const struct vdi_iocb *iocb, 
uint32_t new_snapid,
                goto out;
        }
 
-       /* TODO: multiple write_object should be performed atomically */
+       /* TODO: multiple sd_write_object should be performed atomically */
 
        /* update current working vdi */
-       ret = write_object(vid_to_vdi_oid(cur_vid), (char *)&iocb->time,
-                          sizeof(iocb->time),
-                          offsetof(struct sd_inode, snap_ctime), false);
+       ret = sd_write_object(vid_to_vdi_oid(cur_vid), (char *)&iocb->time,
+                             sizeof(iocb->time),
+                             offsetof(struct sd_inode, snap_ctime), false);
        if (ret != SD_RES_SUCCESS) {
                ret = SD_RES_BASE_VDI_READ;
                goto out;
        }
 
        /* update base vdi */
-       ret = write_object(vid_to_vdi_oid(base_vid), (char *)&new_vid,
-                          sizeof(new_vid),
-                          offsetof(struct sd_inode, child_vdi_id[idx]), false);
+       ret = sd_write_object(vid_to_vdi_oid(base_vid), (char *)&new_vid,
+                             sizeof(new_vid),
+                             offsetof(struct sd_inode, child_vdi_id[idx]),
+                             false);
        if (ret != SD_RES_SUCCESS) {
                ret = SD_RES_BASE_VDI_WRITE;
                goto out;
@@ -473,8 +475,8 @@ static int rebase_vdi(const struct vdi_iocb *iocb, uint32_t 
new_snapid,
 
        /* create a new vdi */
        new = alloc_inode(iocb, new_snapid, new_vid, base->data_vdi_id);
-       ret = write_object(vid_to_vdi_oid(new_vid), (char *)new, sizeof(*new),
-                          0, true);
+       ret = sd_write_object(vid_to_vdi_oid(new_vid), (char *)new,
+                             sizeof(*new), 0, true);
        if (ret != SD_RES_SUCCESS)
                ret = SD_RES_VDI_WRITE;
 
@@ -547,8 +549,8 @@ static int fill_vdi_info_range(uint32_t left, uint32_t 
right,
                goto out;
        }
        for (i = right - 1; i >= left; i--) {
-               ret = read_object(vid_to_vdi_oid(i), (char *)inode,
-                                 SD_INODE_HEADER_SIZE, 0);
+               ret = sd_read_object(vid_to_vdi_oid(i), (char *)inode,
+                                    SD_INODE_HEADER_SIZE, 0);
                if (ret != SD_RES_SUCCESS)
                        goto out;
 
@@ -798,8 +800,8 @@ static int delete_inode(struct deletion_work *dw)
        int ret = SD_RES_SUCCESS;
 
        inode = xzalloc(sizeof(*inode));
-       ret = read_object(vid_to_vdi_oid(dw->vid), (char *)inode,
-                         SD_INODE_HEADER_SIZE, 0);
+       ret = sd_read_object(vid_to_vdi_oid(dw->vid), (char *)inode,
+                            SD_INODE_HEADER_SIZE, 0);
        if (ret != SD_RES_SUCCESS) {
                ret = SD_RES_EIO;
                goto out;
@@ -807,8 +809,8 @@ static int delete_inode(struct deletion_work *dw)
 
        memset(inode->name, 0, sizeof(inode->name));
 
-       ret = write_object(vid_to_vdi_oid(dw->vid), (char *)inode,
-                          SD_INODE_HEADER_SIZE, 0, false);
+       ret = sd_write_object(vid_to_vdi_oid(dw->vid), (char *)inode,
+                             SD_INODE_HEADER_SIZE, 0, false);
        if (ret != 0) {
                ret = SD_RES_EIO;
                goto out;
@@ -858,7 +860,7 @@ static void delete_cb(void *data, enum btree_node_type 
type, void *arg)
                        sd_debug("object %" PRIx64 " is base's data, would"
                                 " not be deleted.", oid);
                else {
-                       ret = remove_object(oid);
+                       ret = sd_remove_object(oid);
                        if (ret != SD_RES_SUCCESS)
                                sd_err("remove object %" PRIx64 " fail, %d",
                                       oid, ret);
@@ -884,7 +886,7 @@ static void delete_one(struct work *work)
        }
 
        ret = read_backend_object(vid_to_vdi_oid(vdi_id),
-                         (void *)inode, sizeof(*inode), 0);
+                                 (void *)inode, sizeof(*inode), 0);
 
        if (ret != SD_RES_SUCCESS) {
                sd_err("cannot find VDI object");
@@ -911,7 +913,7 @@ static void delete_one(struct work *work)
                                continue;
                        }
 
-                       ret = remove_object(oid);
+                       ret = sd_remove_object(oid);
                        if (ret != SD_RES_SUCCESS)
                                sd_err("remove object %" PRIx64 " fail, %d",
                                       oid, ret);
@@ -929,8 +931,8 @@ static void delete_one(struct work *work)
        inode->vdi_size = 0;
        memset(inode->name, 0, sizeof(inode->name));
 
-       write_object(vid_to_vdi_oid(vdi_id), (void *)inode,
-                    sizeof(*inode), 0, false);
+       sd_write_object(vid_to_vdi_oid(vdi_id), (void *)inode,
+                       sizeof(*inode), 0, false);
 
        if (nr_deleted)
                notify_vdi_deletion(vdi_id);
@@ -981,7 +983,7 @@ static int fill_vdi_list(struct deletion_work *dw, uint32_t 
root_vid)
 again:
        vid = dw->buf[done++];
        ret = read_backend_object(vid_to_vdi_oid(vid), (char *)inode,
-                         SD_INODE_HEADER_SIZE, 0);
+                                 SD_INODE_HEADER_SIZE, 0);
 
        if (ret != SD_RES_SUCCESS) {
                sd_err("cannot find VDI object");
@@ -1023,11 +1025,11 @@ static uint64_t get_vdi_root(uint32_t vid, bool *cloned)
        }
 next:
        ret = read_backend_object(vid_to_vdi_oid(vid), (char *)inode,
-                         SD_INODE_HEADER_SIZE, 0);
+                                 SD_INODE_HEADER_SIZE, 0);
 
        if (vid == inode->vdi_id && inode->snap_id == 1
-                       && inode->parent_vdi_id != 0
-                       && !inode->snap_ctime) {
+           && inode->parent_vdi_id != 0
+           && !inode->snap_ctime) {
                sd_debug("vdi %" PRIx32 " is a cloned vdi.", vid);
                /* current vdi is a cloned vdi */
                *cloned = true;
@@ -1143,12 +1145,12 @@ int get_vdi_attr(struct sheepdog_vdi_attr *vattr, int 
data_len,
        end = *attrid - 1;
        while (*attrid != end) {
                oid = vid_to_attr_oid(vid, *attrid);
-               ret = read_object(oid, (char *)&tmp_attr,
-                                 sizeof(tmp_attr), 0);
+               ret = sd_read_object(oid, (char *)&tmp_attr,
+                                    sizeof(tmp_attr), 0);
 
                if (ret == SD_RES_NO_OBJ && wr) {
-                       ret = write_object(oid, (char *)vattr, data_len, 0,
-                                          true);
+                       ret = sd_write_object(oid, (char *)vattr, data_len, 0,
+                                             true);
                        if (ret)
                                ret = SD_RES_EIO;
                        else
@@ -1167,17 +1169,17 @@ int get_vdi_attr(struct sheepdog_vdi_attr *vattr, int 
data_len,
                        if (excl)
                                ret = SD_RES_VDI_EXIST;
                        else if (delete) {
-                               ret = write_object(oid, (char *)"", 1,
-                                                  offsetof(struct 
sheepdog_vdi_attr, name),
-                                                  false);
+                               ret = sd_write_object(oid, (char *)"", 1,
+                               offsetof(struct sheepdog_vdi_attr, name),
+                                                     false);
                                if (ret)
                                        ret = SD_RES_EIO;
                                else
                                        ret = SD_RES_SUCCESS;
                        } else if (wr) {
-                               ret = write_object(oid, (char *)vattr,
-                                                  SD_ATTR_OBJ_SIZE, 0,
-                                                  false);
+                               ret = sd_write_object(oid, (char *)vattr,
+                                                     SD_ATTR_OBJ_SIZE, 0,
+                                                     false);
 
                                if (ret)
                                        ret = SD_RES_EIO;
diff --git a/tests/unit/sheep/mock_store.c b/tests/unit/sheep/mock_store.c
index fe6c0d9..3a638be 100644
--- a/tests/unit/sheep/mock_store.c
+++ b/tests/unit/sheep/mock_store.c
@@ -14,12 +14,12 @@
 #include "mock.h"
 #include "sheep_priv.h"
 
-MOCK_METHOD(read_object, int, 0,
+MOCK_METHOD(sd_read_object, int, 0,
            uint64_t oid, char *data, unsigned int datalen, uint64_t offset)
-MOCK_METHOD(write_object, int, 0,
+MOCK_METHOD(sd_write_object, int, 0,
            uint64_t oid, char *data, unsigned int datalen, uint64_t offset,
            bool create)
 MOCK_METHOD(read_backend_object, int, 0,
            uint64_t oid, char *data, unsigned int datalen, uint64_t offset)
-MOCK_METHOD(remove_object, int, 0,
+MOCK_METHOD(sd_remove_object, int, 0,
            uint64_t oid)
-- 
1.7.9.5

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