[PATCH V2 14/16] src/locktest: Add truncate lease tests

ira.weiny
2019-09-23T17:53:47Z

Add verification of signal reception on truncate:

/* 9 */"Write lease gets SIGIO on truncate",
/* 10 */"Read lease gets SIGIO on truncate",

Signed-off-by: Ira Weiny <ira.weiny@intel.com>

---
Changes from V1:
Tests are now a separate array and are run with '-L' option.

src/locktest.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 50 insertions(+)

diff --git a/src/locktest.c b/src/locktest.c
index 9f8a892a21a0..2e7f2a19b1af 100644
--- a/src/locktest.c
+++ b/src/locktest.c
@@ -102,6 +102,7 @@ static HANDLE f_fd = INVALID_HANDLE; /* shared file */
#define CMD_GETLEASE 8
#define CMD_SIGIO 9
#define CMD_WAIT_SIGIO 10
+#define CMD_TRUNCATE 11

#define PASS 1
#define FAIL 0
@@ -133,6 +134,7 @@ static char *get_cmd_str(int cmd)
case CMD_GETLEASE: return "Get Lease"; break;
case CMD_SIGIO: return "Setup SIGIO"; break;
case CMD_WAIT_SIGIO: return "Wait for SIGIO"; break;
+ case CMD_TRUNCATE: return "Truncate"; break;
}
return "unknown";
}
@@ -574,6 +576,8 @@ char *lease_descriptions[] = {
/* 6 */"Write lease gets SIGIO on read open",
/* 7 */"Read lease does _not_ get SIGIO on read open",
/* 8 */"Read lease gets SIGIO on write open",
+ /* 9 */"Write lease gets SIGIO on truncate",
+ /* 10 */"Read lease gets SIGIO on truncate",
};

static int64_t lease_tests[][6] =
@@ -654,6 +658,25 @@ static int64_t lease_tests[][6] =
{8, CMD_CLOSE, 0, 0, PASS, SERVER },
{8, CMD_CLOSE, 0, 0, PASS, CLIENT },

+ /* Get SIGIO when Write lease is broken by Truncate */
+ {9, CMD_OPEN, O_RDWR, 0, PASS, CLIENT },
+ {9, CMD_SETLEASE, F_WRLCK, 0, PASS, CLIENT },
+ {9, CMD_GETLEASE, F_WRLCK, 0, PASS, CLIENT },
+ {9, CMD_SIGIO, 0, 0, PASS, CLIENT },
+ {9, CMD_TRUNCATE, FILE_SIZE/2, 0, PASS, CLIENT },
+ {9, CMD_WAIT_SIGIO, 5, 0, PASS, CLIENT },
+ {9, CMD_CLOSE, 0, 0, PASS, CLIENT },
+
+ /* Get SIGIO when Read lease is broken by Truncate */
+ {10, CMD_OPEN, O_RDONLY, 0, PASS, CLIENT },
+ {10, CMD_SETLEASE, F_RDLCK, 0, PASS, CLIENT },
+ {10, CMD_GETLEASE, F_RDLCK, 0, PASS, CLIENT },
+ {10, CMD_SIGIO, 0, 0, PASS, CLIENT },
+ {10, CMD_TRUNCATE, FILE_SIZE/2, 0, PASS, SERVER },
+ {10, CMD_WAIT_SIGIO, 5, 0, PASS, CLIENT },
+ {10, CMD_CLOSE, 0, 0, PASS, CLIENT },
+
+
/* indicate end of array */
{0,0,0,0,0,SERVER},
{0,0,0,0,0,CLIENT}
@@ -717,6 +740,27 @@ initialize(HANDLE fd)
}
}

+static int do_truncate(size_t length)
+{
+ int rc;
+
+ if (debug)
+ fprintf(stderr, "truncating to %ld\n", length);
+
+again:
+ rc = truncate(filename, length);
+ if (rc && errno == EINTR)
+ goto again;
+
+ saved_errno = errno;
+
+ if (rc)
+ fprintf(stderr, "%s %d : %s\n",
+ __FILE__, errno, strerror(errno));
+
+ return (rc == 0 ? PASS:FAIL);
+}
+
void release_lease(int fd)
{
int rc;
@@ -1245,6 +1289,9 @@ int run(int64_t tests[][6], char *descriptions[])
case CMD_WAIT_SIGIO:
result = do_wait_sigio(tests[index][TIME]);
break;
+ case CMD_TRUNCATE:
+ result = do_truncate(tests[index][OFFSET]);
+ break;
}
if( result != tests[index][RESULT]) {
fail_flag++;
@@ -1356,6 +1403,9 @@ int run(int64_t tests[][6], char *descriptions[])
case CMD_WAIT_SIGIO:
result = do_wait_sigio(ctl.offset);
break;
+ case CMD_TRUNCATE:
+ result = do_truncate(ctl.offset);
+ break;
}
if( result != ctl.result ) {
fprintf(stderr,"Failure in %d:%s\n",
--
2.20.1