The following patch, against current hail.git, adds the "CP" command to
chunkd, permitting copying from object->object inside a single table.
It also adds a worker thread pool that may be used by other background
tasks as well.
diff --git a/chunkd/chunkd.h b/chunkd/chunkd.h
index e019f0d..f1f7d04 100644
--- a/chunkd/chunkd.h
+++ b/chunkd/chunkd.h
@@ -104,6 +104,8 @@ struct client {
unsigned int req_used; /* amount of req_buf in use */
void *req_ptr; /* start of unexamined data */
uint16_t key_len;
+ unsigned int var_len;
+ bool second_var;
char *hdr_start; /* current hdr start */
char *hdr_end; /* current hdr end (so far) */
@@ -124,6 +126,7 @@ struct client {
char netbuf_out[CLI_DATA_BUF_SZ];
char key[CHD_KEY_SZ];
char table[CHD_KEY_SZ];
+ char key2[CHD_KEY_SZ];
};
struct backend_obj {
@@ -162,6 +165,16 @@ struct volume_entry {
char *owner; /* obj owner username */
};
+enum chunk_worker_op {
+ CW_CP, /* local obj copy */
+};
+
+struct worker_info {
+ enum chunk_worker_op op;
+ struct client *cli;
+ enum chunk_errcode err;
+};
+
struct server_stats {
unsigned long poll; /* number polls */
unsigned long event; /* events dispatched */
@@ -209,6 +222,10 @@ struct server {
GHashTable *fd_info;
+ GThreadPool *workers;
+ int max_workers;
+ int worker_pipe[2];
+
struct list_head wr_trash;
unsigned int trash_sz;
@@ -278,6 +295,9 @@ extern int fs_obj_do_sum(const char *fn, unsigned int klen,
char **csump);
extern bool object_del(struct client *cli);
extern bool object_put(struct client *cli);
extern bool object_get(struct client *cli, bool want_body);
+extern bool object_cp(struct client *cli);
+extern void worker_cp_thr(struct worker_info *wi);
+extern void worker_cp_pipe(struct worker_info *wi);
extern bool cli_evt_data_in(struct client *cli, unsigned int events);
extern void cli_out_end(struct client *cli);
extern void cli_in_end(struct client *cli);
@@ -314,12 +334,14 @@ extern bool cli_err(struct client *cli, enum
chunk_errcode code, bool recycle_ok
extern int cli_writeq(struct client *cli, const void *buf, unsigned int buflen,
cli_write_func cb, void *cb_data);
extern bool cli_wr_sendfile(struct client *, cli_write_func);
+extern bool cli_rd_set_poll(struct client *cli, bool readable);
extern void cli_wr_set_poll(struct client *cli, bool writable);
extern bool cli_cb_free(struct client *cli, struct client_write *wr,
bool done);
extern bool cli_write_start(struct client *cli);
extern int cli_req_avail(struct client *cli);
extern int cli_poll_mod(struct client *cli);
+extern bool tcp_cli_event(int fd, short events, void *userdata);
extern void resp_init_req(struct chunksrv_resp *resp,
const struct chunksrv_req *req);
diff --git a/chunkd/object.c b/chunkd/object.c
index 116792f..105eb84 100644
--- a/chunkd/object.c
+++ b/chunkd/object.c
@@ -25,6 +25,7 @@
#include <unistd.h>
#include <string.h>
#include <errno.h>
+#include <poll.h>
#include <stdio.h>
#include <syslog.h>
#include <glib.h>
@@ -356,3 +357,102 @@ start_write:
return cli_write_start(cli);
}
+bool object_cp(struct client *cli)
+{
+ enum chunk_errcode err = che_InternalError;
+ struct worker_info *wi;
+
+ wi = calloc(1, sizeof(*wi));
+ if (!wi)
+ return cli_err(cli, err, false);
+
+ wi->op = CW_CP;
+ wi->cli = cli;
+
+ g_thread_pool_push(chunkd_srv.workers, wi, NULL);
+
+ cli_rd_set_poll(cli, false);
+
+ return false;
+}
+
+void worker_cp_thr(struct worker_info *wi)
+{
+ unsigned char md[SHA_DIGEST_LENGTH];
+ char hashstr[50];
+ struct client *cli = wi->cli;
+ struct backend_obj *obj = NULL, *out_obj = NULL;
+ enum chunk_errcode err = che_InternalError;
+ void *buf;
+ static const unsigned bufsz = 1 * 1024 * 1024;
+
+ buf = malloc(bufsz);
+ if (!buf)
+ goto out;
+
+ cli->in_obj = obj = fs_obj_open(cli->table_id, cli->user, cli->key2,
+ cli->var_len, &err);
+ if (!obj)
+ goto out;
+
+ cli->in_len = obj->size;
+
+ cli->out_bo = out_obj = fs_obj_new(cli->table_id,
+ cli->key, cli->key_len, &err);
+ if (!cli->out_bo)
+ goto out;
+
+ SHA1_Init(&cli->out_hash);
+
+ while (cli->in_len > 0) {
+ ssize_t rrc, wrc;
+
+ rrc = fs_obj_read(obj, buf, MIN(cli->in_len, bufsz));
+ if (rrc < 0)
+ goto err_out;
+ if (rrc == 0)
+ break;
+
+ SHA1_Update(&cli->out_hash, buf, rrc);
+
+ wrc = fs_obj_write(out_obj, buf, rrc);
+ if (wrc < 0)
+ goto err_out;
+
+ cli->in_len -= wrc;
+ }
+
+ SHA1_Final(md, &cli->out_hash);
+ hexstr(md, SHA_DIGEST_LENGTH, hashstr);
+
+ if (!fs_obj_write_commit(out_obj, cli->user, hashstr, false))
+ goto err_out;
+
+ err = che_Success;
+
+out:
+ if (buf)
+ free(buf);
+ if (obj)
+ fs_obj_free(obj);
+ if (out_obj)
+ fs_obj_free(out_obj);
+ wi->err = err;
+ write(chunkd_srv.worker_pipe[1], &wi, sizeof(wi));
+
+err_out:
+ /* FIXME: remove half-written destination object */
+ goto out;
+}
+
+void worker_cp_pipe(struct worker_info *wi)
+{
+ struct client *cli = wi->cli;
+ bool rcb;
+
+ cli_rd_set_poll(cli, true);
+
+ rcb = cli_err(cli, wi->err, (wi->err == che_Success) ? true : false);
+ if (rcb)
+ tcp_cli_event(cli->fd, POLLIN | POLLOUT, cli);
+}
diff --git a/chunkd/server.c b/chunkd/server.c
index abd29ad..0fec33a 100644
--- a/chunkd/server.c
+++ b/chunkd/server.c
@@ -418,6 +418,16 @@ static bool cli_evt_recycle(struct client *cli, unsigned
int events)
return true;
}
+bool cli_rd_set_poll(struct client *cli, bool readable)
+{
+ if (readable)
+ srv_poll_mask(cli->fd, POLLIN, 0);
+ else
+ srv_poll_mask(cli->fd, 0, POLLIN);
+
+ return true;
+}
+
void cli_wr_set_poll(struct client *cli, bool writable)
{
if (writable)
@@ -1049,6 +1059,7 @@ static const char *op2str(enum chunksrv_ops op)
case CHO_CHECK_START: return "CHO_CHECK_START";
case CHO_CHECK_STATUS: return "CHO_CHECK_STATUS";
case CHO_START_TLS: return "CHO_START_TLS";
+ case CHO_CP: return "CHO_CP";
default:
return "BUG/UNKNOWN!";
@@ -1143,6 +1154,9 @@ static bool cli_evt_exec_req(struct client *cli, unsigned
int events)
case CHO_DEL:
rcb = object_del(cli);
break;
+ case CHO_CP:
+ rcb = object_cp(cli);
+ break;
case CHO_LIST:
rcb = volume_list(cli);
break;
@@ -1226,8 +1240,10 @@ static bool cli_evt_read_fixed(struct client *cli,
unsigned int events)
/* otherwise, go to read-variable-len-record state */
cli->req_ptr = &cli->key;
+ cli->var_len = cli->key_len;
cli->req_used = 0;
cli->state = evt_read_var;
+ cli->second_var = false;
return true;
}
@@ -1235,7 +1251,7 @@ static bool cli_evt_read_fixed(struct client *cli,
unsigned int events)
static bool cli_evt_read_var(struct client *cli, unsigned int events)
{
int rc = cli_read_data(cli, cli->req_ptr,
- cli->key_len - cli->req_used);
+ cli->var_len - cli->req_used);
if (rc < 0) {
cli->state = evt_dispose;
return true;
@@ -1245,10 +1261,17 @@ static bool cli_evt_read_var(struct client *cli,
unsigned int events)
cli->req_used += rc;
/* poll for more, if variable-length record not yet received */
- if (cli->req_used < cli->key_len)
+ if (cli->req_used < cli->var_len)
return false;
- cli->state = evt_exec_req;
+ if (cli->creq.op == CHO_CP && !cli->second_var) {
+ cli->req_ptr = &cli->key2;
+ cli->var_len = le64_to_cpu(cli->creq.data_len);
+ cli->req_used = 0;
+ cli->state = evt_read_var;
+ cli->second_var = true;
+ } else
+ cli->state = evt_exec_req;
return true;
}
@@ -1301,7 +1324,7 @@ static void tcp_cli_wr_event(int fd, short events, void
*userdata)
cli_writable(cli);
}
-static bool tcp_cli_event(int fd, short events, void *userdata)
+bool tcp_cli_event(int fd, short events, void *userdata)
{
struct client *cli = userdata;
bool loop = false, disposing = false;
@@ -1419,6 +1442,25 @@ static int net_write_port(const char *port_file, const
char *port_str)
return 0;
}
+static bool pipe_watch(int pipe_fd_0,
+ bool (*cb)(int fd, short events, void *userdata),
+ void *userdata)
+{
+ struct server_poll *sp;
+
+ sp = calloc(1, sizeof(*sp));
+ if (!sp)
+ return false;
+
+ sp->events = POLLIN;
+ sp->cb = cb;
+ sp->userdata = userdata;
+
+ g_hash_table_insert(chunkd_srv.fd_info, GINT_TO_POINTER(pipe_fd_0), sp);
+
+ return true;
+}
+
static int net_open_socket(const struct listen_cfg *cfg,
int addr_fam, int sock_type, int sock_prot,
int addr_len, void *addr_ptr)
@@ -1634,6 +1676,33 @@ static int net_open(struct listen_cfg *cfg)
return net_open_known(cfg);
}
+static void worker_thread(gpointer data, gpointer userdata)
+{
+ struct worker_info *wi = data;
+
+ switch (wi->op) {
+ case CW_CP:
+ worker_cp_thr(wi);
+ break;
+ }
+}
+
+static bool worker_pipe_evt(int fd, short events, void *userdata)
+{
+ struct worker_info *wi = NULL;
+
+ if (read(fd, &wi, sizeof(wi)) != sizeof(wi))
+ return false;
+
+ switch (wi->op) {
+ case CW_CP:
+ worker_cp_pipe(wi);
+ break;
+ }
+
+ return true;
+}
+
static void fill_poll_arr(gpointer key, gpointer val, gpointer userdata)
{
int fd = GPOINTER_TO_INT(key);
@@ -1830,21 +1899,38 @@ int main (int argc, char *argv[])
goto err_out_session;
}
+ chunkd_srv.max_workers = 10;
+ chunkd_srv.workers = g_thread_pool_new(worker_thread, NULL,
+ chunkd_srv.max_workers,
+ FALSE, NULL);
+ if (!chunkd_srv.workers) {
+ rc = 1;
+ goto err_out_fd_info;
+ }
+
if (objcache_init(&chunkd_srv.actives) != 0) {
rc = 1;
- goto err_out_objcache;
+ goto err_out_workers;
}
chunkd_srv.trash_sz = 0;
if (pipe(chunkd_srv.chk_pipe) < 0) {
rc = 1;
- goto err_out_pipe;
+ goto err_out_objcache;
+ }
+ if (pipe(chunkd_srv.worker_pipe) < 0) {
+ rc = 1;
+ goto err_out_chk_pipe;
+ }
+ if (!pipe_watch(chunkd_srv.worker_pipe[0], worker_pipe_evt, NULL)) {
+ rc = 1;
+ goto err_out_chk_pipe;
}
if (fs_open()) {
rc = 1;
- goto err_out_fs;
+ goto err_out_worker_pipe;
}
/* set up server networking */
@@ -1874,13 +1960,17 @@ err_out_cld:
/* net_close(); */
err_out_listen:
fs_close();
-err_out_fs:
+err_out_worker_pipe:
+err_out_chk_pipe:
cmd = CHK_CMD_EXIT;
write(chunkd_srv.chk_pipe[1], &cmd, 1);
close(chunkd_srv.chk_pipe[1]);
-err_out_pipe:
- objcache_fini(&chunkd_srv.actives);
err_out_objcache:
+ objcache_fini(&chunkd_srv.actives);
+err_out_workers:
+ if (strict_free)
+ g_thread_pool_free(chunkd_srv.workers, TRUE, FALSE);
+err_out_fd_info:
if (strict_free)
g_hash_table_destroy(chunkd_srv.fd_info);
err_out_session:
diff --git a/include/chunk_msg.h b/include/chunk_msg.h
index 4a3c15d..3ee1c6a 100644
--- a/include/chunk_msg.h
+++ b/include/chunk_msg.h
@@ -48,6 +48,8 @@ enum chunksrv_ops {
* functions' success/failure is sufficient indication.
*/
CHO_START_TLS = 10, /* Encrypt all subsequent msgs */
+
+ CHO_CP = 11, /* local object copy (intra-table) */
};
enum chunk_errcode {
diff --git a/include/chunkc.h b/include/chunkc.h
index 683992e..005ba58 100644
--- a/include/chunkc.h
+++ b/include/chunkc.h
@@ -85,6 +85,9 @@ extern bool stc_put_sync(struct st_client *stc);
extern bool stc_put_inline(struct st_client *stc, const void *key,
size_t key_len, void *data, uint64_t len,
uint32_t flags);
+extern bool stc_cp(struct st_client *stc,
+ const void *dest_key, size_t dest_key_len,
+ const void *src_key, size_t src_key_len);
extern bool stc_del(struct st_client *stc, const void *key, size_t key_len);
extern bool stc_ping(struct st_client *stc);
@@ -133,4 +136,11 @@ static inline bool stc_table_openz(struct st_client *stc,
const char *key,
return stc_table_open(stc, key, strlen(key) + 1, flags);
}
+static inline bool stc_cpz(struct st_client *stc,
+ const char *dest_key, const char *src_key)
+{
+ return stc_cp(stc, dest_key, strlen(dest_key),
+ src_key, strlen(src_key));
+}
+
#endif /* __STC_H__ */
diff --git a/lib/chunkdc.c b/lib/chunkdc.c
index 7441662..260f4d9 100644
--- a/lib/chunkdc.c
+++ b/lib/chunkdc.c
@@ -1091,6 +1091,62 @@ bool stc_check_status(struct st_client *stc, struct
chunk_check_status *out)
return true;
}
+bool stc_cp(struct st_client *stc,
+ const void *dest_key, size_t dest_key_len,
+ const void *src_key, size_t src_key_len)
+{
+ struct chunksrv_resp resp;
+ struct chunksrv_req *req;
+ void *p;
+ bool rcb = false;
+ size_t alloc_len;
+
+ if (stc->verbose)
+ fprintf(stderr, "libstc: CP\n");
+
+ alloc_len = sizeof(*req) + src_key_len + dest_key_len;
+ req = malloc(alloc_len);
+ if (!req)
+ return false;
+
+ /* initialize request */
+ req_init(stc, req);
+ req->op = CHO_CP;
+ req->data_len = cpu_to_le64(src_key_len);
+
+ /* store destination (new) key in key (1st) buffer area */
+ req_set_key(req, dest_key, dest_key_len);
+
+ /* store source (old) key in data (2nd) buffer area */
+ p = (req + 1);
+ p += dest_key_len;
+ memcpy(p, src_key, src_key_len);
+
+ /* sign request */
+ chreq_sign(req, stc->key, req->sig);
+
+ /* write request */
+ if (!net_write(stc, req, alloc_len))
+ goto out;
+
+ /* read response header */
+ if (!net_read(stc, &resp, sizeof(resp)))
+ goto out;
+
+ /* check response code */
+ if (resp.resp_code != che_Success) {
+ if (stc->verbose)
+ fprintf(stderr, "CP resp code: %d\n", resp.resp_code);
+ goto out;
+ }
+
+ rcb = true;
+
+out:
+ free(req);
+ return rcb;
+}
+
/*
* For extra safety, call stc_init after g_thread_init, if present.
* Currently we just call srand(), but since we use GLib, we may need
diff --git a/test/chunkd/Makefile.am b/test/chunkd/Makefile.am
index 1cb9875..390462b 100644
--- a/test/chunkd/Makefile.am
+++ b/test/chunkd/Makefile.am
@@ -24,13 +24,14 @@ TESTS = \
nop \
basic-object \
auth \
+ cp \
large-object \
lotsa-objects \
selfcheck-unit \
stop-daemon \
clean-db
-check_PROGRAMS = auth basic-object it-works large-object \
+check_PROGRAMS = auth basic-object cp it-works large-object \
lotsa-objects nop objcache-unit selfcheck-unit
TESTLDADD = ../../lib/libhail.la \
@@ -38,6 +39,7 @@ TESTLDADD = ../../lib/libhail.la \
@GLIB_LIBS@ @CRYPTO_LIBS@ \
@XML_LIBS@ @SSL_LIBS@
basic_object_LDADD = $(TESTLDADD)
+cp_LDADD = $(TESTLDADD)
auth_LDADD = $(TESTLDADD)
it_works_LDADD = $(TESTLDADD)
large_object_LDADD = $(TESTLDADD)
diff --git a/test/chunkd/cp.c b/test/chunkd/cp.c
new file mode 100644
index 0000000..85f61c4
--- /dev/null
+++ b/test/chunkd/cp.c
@@ -0,0 +1,116 @@
+
+/*
+ * Copyright 2009-2010 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 "hail-config.h"
+
+#include <sys/types.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <time.h>
+#include <string.h>
+#include <locale.h>
+#include <chunkc.h>
+#include "test.h"
+
+static void test(bool do_encrypt)
+{
+ struct st_object *obj;
+ struct st_keylist *klist;
+ struct st_client *stc;
+ int port;
+ bool rcb;
+ char val[] = "my first value";
+ char key[64] = "deadbeef";
+ char key2[64] = "deadcab0";
+ size_t len = 0;
+ void *mem;
+
+ port = stc_readport(TEST_PORTFILE);
+ OK(port > 0);
+
+ stc = stc_new(TEST_HOST, port, TEST_USER, TEST_USER_KEY, do_encrypt);
+ OK(stc);
+
+ rcb = stc_table_openz(stc, TEST_TABLE, 0);
+ OK(rcb);
+
+ /* store object */
+ rcb = stc_put_inlinez(stc, key, val, strlen(val), 0);
+ OK(rcb);
+
+ /* make sure object appears in list of volume keys */
+ klist = stc_keys(stc);
+ OK(klist);
+ OK(klist->contents);
+ OK(klist->contents->next == NULL);
+
+ obj = klist->contents->data;
+ OK(obj);
+ OK(obj->name);
+ OK(!strcmp(obj->name, key));
+ OK(obj->time_mod);
+ OK(obj->etag);
+ OK(obj->size == strlen(val));
+ OK(obj->owner);
+
+ stc_free_keylist(klist);
+
+ /* get object */
+ mem = stc_get_inlinez(stc, key, &len);
+ OK(mem);
+ OK(len == strlen(val));
+ OK(!memcmp(val, mem, strlen(val)));
+
+ free(mem);
+
+ /* copy object */
+ rcb = stc_cpz(stc, key2, key);
+ OK(rcb);
+
+ /* get object copy */
+ mem = stc_get_inlinez(stc, key2, &len);
+ OK(mem);
+ OK(len == strlen(val));
+ OK(!memcmp(val, mem, strlen(val)));
+
+ free(mem);
+
+ /* delete objects */
+ rcb = stc_delz(stc, key);
+ OK(rcb);
+ rcb = stc_delz(stc, key2);
+ OK(rcb);
+
+ stc_free(stc);
+}
+
+int main(int argc, char *argv[])
+{
+ setlocale(LC_ALL, "C");
+
+ stc_init();
+ SSL_library_init();
+ SSL_load_error_strings();
+
+ test(false);
+ test(true);
+
+ return 0;
+}
--
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