X-Git-Url: http://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=ccan%2Ftdb2%2Ftest%2Fapi-locktimeout.c;fp=ccan%2Ftdb2%2Ftest%2Fapi-locktimeout.c;h=0000000000000000000000000000000000000000;hp=21a26c46fee85d28800298ecca5881dacbf43ad3;hb=b91dafc6ab5075355d508f051977a15dd7794b0e;hpb=0b93bd102aad6b61f1e569fb12aabc6352a1d7cd

diff --git a/ccan/tdb2/test/api-locktimeout.c b/ccan/tdb2/test/api-locktimeout.c
deleted file mode 100644
index 21a26c46..00000000
--- a/ccan/tdb2/test/api-locktimeout.c
+++ /dev/null
@@ -1,194 +0,0 @@
-#include <ccan/tdb2/tdb2.h>
-#include <ccan/tap/tap.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/time.h>
-#include <fcntl.h>
-#include <limits.h>
-#include <errno.h>
-#include "logging.h"
-#include "external-agent.h"
-
-#undef alarm
-#define alarm fast_alarm
-
-/* Speed things up by doing things in milliseconds. */
-static unsigned int fast_alarm(unsigned int milli_seconds)
-{
-	struct itimerval it;
-
-	it.it_interval.tv_sec = it.it_interval.tv_usec = 0;
-	it.it_value.tv_sec = milli_seconds / 1000;
-	it.it_value.tv_usec = milli_seconds * 1000;
-	setitimer(ITIMER_REAL, &it, NULL);
-	return 0;
-}
-
-#define CatchSignal(sig, handler) signal((sig), (handler))
-
-static void do_nothing(int signum)
-{
-}
-
-/* This example code is taken from SAMBA, so try not to change it. */
-static struct flock flock_struct;
-
-/* Return a value which is none of v1, v2 or v3. */
-static inline short int invalid_value(short int v1, short int v2, short int v3)
-{
-	short int try = (v1+v2+v3)^((v1+v2+v3) << 16);
-	while (try == v1 || try == v2 || try == v3)
-		try++;
-	return try;
-}
-
-/* We invalidate in as many ways as we can, so the OS rejects it */
-static void invalidate_flock_struct(int signum)
-{
-	flock_struct.l_type = invalid_value(F_RDLCK, F_WRLCK, F_UNLCK);
-	flock_struct.l_whence = invalid_value(SEEK_SET, SEEK_CUR, SEEK_END);
-	flock_struct.l_start = -1;
-	/* A large negative. */
-	flock_struct.l_len = (((off_t)1 << (sizeof(off_t)*CHAR_BIT - 1)) + 1);
-}
-
-static int timeout_lock(int fd, int rw, off_t off, off_t len, bool waitflag,
-			void *_timeout)
-{
-	int ret, saved_errno = errno;
-	unsigned int timeout = *(unsigned int *)_timeout;
-
-	flock_struct.l_type = rw;
-	flock_struct.l_whence = SEEK_SET;
-	flock_struct.l_start = off;
-	flock_struct.l_len = len;
-
-	CatchSignal(SIGALRM, invalidate_flock_struct);
-	alarm(timeout);
-
-	for (;;) {
-		if (waitflag)
-			ret = fcntl(fd, F_SETLKW, &flock_struct);
-		else
-			ret = fcntl(fd, F_SETLK, &flock_struct);
-
-		if (ret == 0)
-			break;
-
-		/* Not signalled?  Something else went wrong. */
-		if (flock_struct.l_len == len) {
-			if (errno == EAGAIN || errno == EINTR)
-				continue;
-			saved_errno = errno;
-			break;
-		} else {
-			saved_errno = EINTR;
-			break;
-		}
-	}
-
-	alarm(0);
-	errno = saved_errno;
-	return ret;
-}
-
-static int tdb_chainlock_with_timeout_internal(struct tdb_context *tdb,
-					       TDB_DATA key,
-					       unsigned int timeout,
-					       int rw_type)
-{
-	union tdb_attribute locking;
-	enum TDB_ERROR ecode;
-
-	if (timeout) {
-		locking.base.attr = TDB_ATTRIBUTE_FLOCK;
-		ecode = tdb_get_attribute(tdb, &locking);
-		if (ecode != TDB_SUCCESS)
-			return ecode;
-
-		/* Replace locking function with our own. */
-		locking.flock.data = &timeout;
-		locking.flock.lock = timeout_lock;
-
-		ecode = tdb_set_attribute(tdb, &locking);
-		if (ecode != TDB_SUCCESS)
-			return ecode;
-	}
-	if (rw_type == F_RDLCK)
-		ecode = tdb_chainlock_read(tdb, key);
-	else
-		ecode = tdb_chainlock(tdb, key);
-
-	if (timeout) {
-		tdb_unset_attribute(tdb, TDB_ATTRIBUTE_FLOCK);
-	}
-	return ecode;
-}
-
-int main(int argc, char *argv[])
-{
-	unsigned int i;
-	struct tdb_context *tdb;
-	TDB_DATA key = tdb_mkdata("hello", 5);
-	int flags[] = { TDB_DEFAULT, TDB_NOMMAP,
-			TDB_CONVERT, TDB_NOMMAP|TDB_CONVERT,
-			TDB_VERSION1, TDB_NOMMAP|TDB_VERSION1,
-			TDB_CONVERT|TDB_VERSION1,
-			TDB_NOMMAP|TDB_CONVERT|TDB_VERSION1 };
-	struct agent *agent;
-
-	plan_tests(sizeof(flags) / sizeof(flags[0]) * 15);
-
-	agent = prepare_external_agent();
-
-	for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
-		enum TDB_ERROR ecode;
-		tdb = tdb_open("run-locktimeout.tdb", flags[i],
-			       O_RDWR|O_CREAT|O_TRUNC, 0600, &tap_log_attr);
-		if (!ok1(tdb))
-			break;
-
-		/* Simple cases: should succeed. */
-		ecode = tdb_chainlock_with_timeout_internal(tdb, key, 20,
-							    F_RDLCK);
-		ok1(ecode == TDB_SUCCESS);
-		ok1(tap_log_messages == 0);
-
-		tdb_chainunlock_read(tdb, key);
-		ok1(tap_log_messages == 0);
-
-		ecode = tdb_chainlock_with_timeout_internal(tdb, key, 20,
-							    F_WRLCK);
-		ok1(ecode == TDB_SUCCESS);
-		ok1(tap_log_messages == 0);
-
-		tdb_chainunlock(tdb, key);
-		ok1(tap_log_messages == 0);
-
-		/* OK, get agent to start transaction, then we should time out. */
-		ok1(external_agent_operation(agent, OPEN, "run-locktimeout.tdb")
-		    == SUCCESS);
-		ok1(external_agent_operation(agent, TRANSACTION_START, "")
-		    == SUCCESS);
-		ecode = tdb_chainlock_with_timeout_internal(tdb, key, 20,
-							    F_WRLCK);
-		ok1(ecode == TDB_ERR_LOCK);
-		ok1(tap_log_messages == 0);
-
-		/* Even if we get a different signal, should be fine. */
-		CatchSignal(SIGUSR1, do_nothing);
-		external_agent_operation(agent, SEND_SIGNAL, "");
-		ecode = tdb_chainlock_with_timeout_internal(tdb, key, 20,
-							    F_WRLCK);
-		ok1(ecode == TDB_ERR_LOCK);
-		ok1(tap_log_messages == 0);
-
-		ok1(external_agent_operation(agent, TRANSACTION_COMMIT, "")
-		    == SUCCESS);
-		ok1(external_agent_operation(agent, CLOSE, "")
-		    == SUCCESS);
-		tdb_close(tdb);
-	}
-	free_external_agent(agent);
-	return exit_status();
-}