r24767: add a torture test that performs "ping-pong" that works the same way as

ping-pong.c

this is a manual test and only makes sense to be used in parallell with
the real ping-pong.c tool
(This used to be commit b58677fa745361eafe87c62b2988a7b6387b23e7)

1 files changed, 377 insertions, 0 deletions

diff --git a/source4/torture/raw/pingpong.c b/source4/torture/raw/pingpong.c
new file mode 100755
index 0000000000..a3ee5b5809
--- /dev/null
+++ b/source4/torture/raw/pingpong.c
@@ -0,0 +1,377 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   ping pong test
+   filename is specified by
+	 --option=torture:filename=...
+
+   number of locks is specified by
+	 --option=torture:num_locks=...
+
+   locktimeout is specified in ms by
+	 --option=torture:locktimeout=...
+
+       default is 100 seconds
+       if set to 0 pingpong will instead loop trying the lock operation
+       over and over until it completes.
+
+   reading from the file can be enabled with
+	 --option=torture:read=True
+
+   writing to the file can be enabled with
+	 --option=torture:write=True
+
+
+   Copyright (C) Ronnie Sahlberg
+
+   Significantly based on and borrowed from lockbench.c by
+   Copyright (C) Andrew Tridgell 2006
+   
+   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; either version 3 of the License, or
+   (at your option) any later version.
+   
+   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.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "torture/torture.h"
+#include "libcli/raw/libcliraw.h"
+#include "system/time.h"
+#include "system/filesys.h"
+#include "libcli/libcli.h"
+#include "torture/util.h"
+#include "lib/events/events.h"
+#include "lib/cmdline/popt_common.h"
+#include "libcli/composite/composite.h"
+#include "libcli/smb_composite/smb_composite.h"
+
+
+static BOOL do_reads;
+static BOOL do_writes;
+
+static int lock_failed;
+
+enum lock_stage {LOCK_INITIAL, LOCK_LOCK, LOCK_UNLOCK};
+
+struct pingpong_state {
+	struct event_context *ev;
+	struct smbcli_tree *tree;
+	TALLOC_CTX *mem_ctx;
+	int fnum;
+	enum lock_stage stage;
+	int num_locks;
+	int lock_offset;
+	int unlock_offset;
+	struct smbcli_request *req;
+	int count;
+	int lastcount;
+	int lock_timeout;
+	uint8_t c;
+	uint8_t incr;
+	uint8_t last_incr;
+	uint8_t *val;
+};
+
+
+
+static void lock_completion(struct smbcli_request *);
+
+/*
+  send the next lock request
+*/
+static void lock_send(struct pingpong_state *state, BOOL retry_lock)
+{
+	union smb_lock io;
+	struct smb_lock_entry lock;
+
+
+	/* we have completed one lock/unlock pair */
+	if (state->stage == LOCK_UNLOCK) {
+		if ( (state->count > state->num_locks)
+		   &&(state->incr != state->last_incr) ) {
+			state->last_incr = state->incr;
+			printf("data increment = %u\n", state->incr);
+		}
+	}
+
+	switch (state->stage) {
+	case LOCK_INITIAL:
+		io.lockx.in.ulock_cnt = 0;
+		io.lockx.in.lock_cnt = 1;
+		state->lock_offset = -1;
+		state->unlock_offset = 0;
+		lock.offset = (state->lock_offset+1)%state->num_locks;
+		break;
+	case LOCK_LOCK:
+		io.lockx.in.ulock_cnt = 0;
+		io.lockx.in.lock_cnt = 1;
+		if (!retry_lock) {
+			state->lock_offset = (state->lock_offset+1)%state->num_locks;
+		}
+		lock.offset = (state->lock_offset+1)%state->num_locks;
+		break;
+	case LOCK_UNLOCK:
+		state->count++;
+		io.lockx.in.ulock_cnt = 1;
+		io.lockx.in.lock_cnt = 0;
+		lock.offset = state->lock_offset;
+		break;
+	}
+
+	lock.count = 1;
+	lock.pid = state->tree->session->pid;
+
+	io.lockx.level = RAW_LOCK_LOCKX;
+	io.lockx.in.mode = LOCKING_ANDX_LARGE_FILES;
+	io.lockx.in.timeout = state->lock_timeout;
+	io.lockx.in.locks = &lock;
+	io.lockx.in.file.fnum = state->fnum;
+
+	state->req = smb_raw_lock_send(state->tree, &io);
+	if (state->req == NULL) {
+		DEBUG(0,("Failed to setup lock\n"));
+		lock_failed++;
+	}
+	state->req->async.private = state;
+	state->req->async.fn      = lock_completion;
+}
+
+
+/*
+  called when a write completes
+*/
+static void write_completion(struct smbcli_request *req)
+{
+	struct pingpong_state *state = (struct pingpong_state *)req->async.private;
+	NTSTATUS status = smbcli_request_simple_recv(req);
+
+	if (!NT_STATUS_IS_OK(status)) {
+		printf("write failed\n");
+		exit(1);
+	}
+
+	lock_send(state, False);
+}
+
+
+static void write_send(struct pingpong_state *state) 
+{
+	union smb_write io;
+
+	io.generic.level = RAW_WRITE_WRITEX;
+	io.writex.in.file.fnum = state->fnum;
+	io.writex.in.offset = state->lock_offset;
+	io.writex.in.wmode = 0;
+	io.writex.in.remaining = 0;
+	io.writex.in.count = 1;
+	state->c = state->val[state->lock_offset]+1;
+	io.writex.in.data = &state->c;
+
+	state->req = smb_raw_write_send(state->tree, &io);
+	if (state->req == NULL) {
+		DEBUG(0,("Failed to setup write\n"));
+		exit(1);
+	}
+	state->req->async.private = state;
+	state->req->async.fn      = write_completion;
+}
+	
+
+/*
+  called when a read completes
+*/
+static void read_completion(struct smbcli_request *req)
+{
+	struct pingpong_state *state = (struct pingpong_state *)req->async.private;
+	NTSTATUS status = smbcli_request_simple_recv(req);
+
+	if (!NT_STATUS_IS_OK(status)) {
+		printf("read failed\n");
+		exit(1);
+	}
+
+	state->req = NULL;
+
+	state->incr = state->c - state->val[state->lock_offset];
+	state->val[state->lock_offset] = state->c;
+
+	/* a read just completed, now spawn off to the write handler, if 
+	   write is enabled.   othervise spawn off to the lock handler
+	   to proceed to unlock the previous lock
+	*/
+	if (do_writes) {
+		write_send(state);
+		return;
+	}
+	lock_send(state, False);
+}
+
+
+static void read_send(struct pingpong_state *state) 
+{
+	union smb_read io;
+
+	io.generic.level = RAW_READ_READX;
+	io.readx.in.file.fnum = state->fnum;
+	io.readx.in.mincnt = 1;
+	io.readx.in.maxcnt = 1;
+	io.readx.in.offset = state->lock_offset;
+	io.readx.in.remaining = 0;
+	io.readx.in.read_for_execute = False;
+	io.readx.out.data = &state->c;
+
+	state->req = smb_raw_read_send(state->tree, &io);
+	if (state->req == NULL) {
+		DEBUG(0,("Failed to setup read\n"));
+		exit(1);
+	}
+	state->req->async.private = state;
+	state->req->async.fn      = read_completion;
+}
+
+
+/*
+  called when a lock completes
+*/
+static void lock_completion(struct smbcli_request *req)
+{
+	struct pingpong_state *state = (struct pingpong_state *)req->async.private;
+	NTSTATUS status = smbcli_request_simple_recv(req);
+	state->req = NULL;
+	/* If we dont use timeouts and we got file lock conflict
+	   just try the lock again.
+	*/
+	if (state->lock_timeout==0) {
+		if ( (NT_STATUS_EQUAL(NT_STATUS_FILE_LOCK_CONFLICT, status))
+		   ||(NT_STATUS_EQUAL(NT_STATUS_LOCK_NOT_GRANTED, status)) ) {
+			lock_send(state, True);
+			return;
+		}
+	}
+
+	if (!NT_STATUS_IS_OK(status)) {
+		lock_failed++;
+		return;
+	}
+
+	switch (state->stage) {
+	case LOCK_INITIAL:
+		state->stage = LOCK_LOCK;
+		break;
+	case LOCK_LOCK:
+		state->stage = LOCK_UNLOCK;
+		break;
+	case LOCK_UNLOCK:
+		state->stage = LOCK_LOCK;
+		break;
+	}
+
+	/* if we just completed a lock  and we have read enabled
+	   then spawn off to the read handler instead of sending an unlock
+	*/
+	if ( (state->stage == LOCK_UNLOCK)
+	   &&(do_reads) ){
+		read_send(state);
+		return;
+	}
+	/* if we just completed a lock  and we we didnt have reads enabled
+	   but we do have write enabled, thenspawn off to the write handler
+	   instead of sending an unlock
+	*/
+	if ( (state->stage == LOCK_UNLOCK)
+	   &&(do_writes) ){
+		write_send(state);
+		return;
+	}
+
+	lock_send(state, False);
+}
+
+static void report_rate(struct event_context *ev, struct timed_event *te, 
+			struct timeval t, void *private_data)
+{
+	struct pingpong_state *state = talloc_get_type(private_data, 
+							struct pingpong_state);
+	printf("%5u ", 2*(unsigned)(state->count - state->lastcount));
+	state->lastcount = state->count;
+
+	printf("\r");
+	fflush(stdout);
+	event_add_timed(ev, state, timeval_current_ofs(1, 0), report_rate, state);
+}
+
+/* 
+   ping pong
+*/
+BOOL torture_ping_pong(struct torture_context *torture)
+{
+	const char *fn;
+	TALLOC_CTX *mem_ctx = talloc_new(torture);
+	struct event_context *ev = event_context_find(mem_ctx);
+	int timelimit = torture_setting_int(torture, "timelimit", 10);
+	struct timeval tv;
+	struct pingpong_state *state;
+	struct smbcli_state *cli;
+	int num_locks;
+
+	fn = lp_parm_string(-1, "torture", "filename");
+	if (fn == NULL) {
+		DEBUG(0,("You must specify the filename using --option=torture:filename=...\n"));
+		return false;
+	}
+
+	num_locks = lp_parm_int(-1, "torture", "num_locks", -1);
+	if (num_locks == -1) {
+		DEBUG(0,("You must specify num_locks using --option=torture:num_locks=...\n"));
+		return false;
+	}
+
+	do_reads  = lp_parm_bool(-1, "torture", "read", False);
+	do_writes = lp_parm_bool(-1, "torture", "write", False);
+
+	if (!torture_open_connection_ev(&cli, 0, ev)) {
+		DEBUG(0,("Could not open connection to share\n"));
+		return False;
+	}
+
+	
+	state            = talloc_zero(mem_ctx, struct pingpong_state);
+	state->ev        = ev;
+	state->tree      = cli->tree;
+	state->num_locks = num_locks;
+	state->lock_timeout =  lp_parm_int(-1, "torture", "lock_timeout", 100000);
+	state->fnum      = smbcli_open(state->tree, fn, O_RDWR|O_CREAT, DENY_NONE);
+	if (state->fnum == -1) {
+		printf("Failed to open %s\n", fn);
+		exit(1);
+	}
+	state->val = talloc_zero_array(state, uint8_t, state->num_locks+1);
+	state->stage = LOCK_INITIAL;
+	lock_send(state, False);
+
+	tv = timeval_current();	
+
+	printf("Running for %d seconds\n", timelimit);
+	event_add_timed(ev, state, timeval_current_ofs(1, 0), report_rate, state);
+	while (timeval_elapsed(&tv) < timelimit) {
+		event_loop_once(ev);
+
+		if (lock_failed) {
+			DEBUG(0,("locking failed\n"));
+			goto failed;
+		}
+	}
+
+
+failed:
+	talloc_free(mem_ctx);
+	return true;
+}