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src/locktest: Add lease testing for basic signal reception

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/* 5 */"Read lease gets SIGIO on write open",
	/* 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",

Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
This commit is contained in:
Ira Weiny
2019-09-23 10:53:33 -07:00
committed by Eryu Guan
parent 82ae25c4df
commit 6d3cbc48a5
1 changed files with 135 additions and 2 deletions
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src/locktest.c
+135 -2
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@@ -27,6 +27,8 @@
#include <byteswap.h>
#include <errno.h>
#include <string.h>
#include <signal.h>
#define HEX_2_ASC(x) ((x) > 9) ? (x)-10+'a' : (x)+'0'
#define FILE_SIZE 1024
#define PLATFORM_INIT() /*no-op*/
@@ -83,6 +85,7 @@ static int server = 1;
static int port = 0;
static int testnumber = -1;
static int saved_errno = 0;
static int got_sigio = 0;
static SOCKET s_fd = -1; /* listen socket */
static SOCKET c_fd = -1; /* IPC socket */
@@ -97,6 +100,8 @@ static HANDLE f_fd = INVALID_HANDLE; /* shared file */
#define CMD_RDTEST 6
#define CMD_SETLEASE 7
#define CMD_GETLEASE 8
#define CMD_SIGIO 9
#define CMD_WAIT_SIGIO 10
#define PASS 1
#define FAIL 0
@@ -112,6 +117,7 @@ static HANDLE f_fd = INVALID_HANDLE; /* shared file */
#define WHO 5
#define FLAGS 2 /* index 2 is also used for do_open() flag, see below */
#define ARG FLAGS /* Arguments for Lease operations */
#define TIME FLAGS /* Time for waiting on sigio */
static char *get_cmd_str(int cmd)
{
@@ -125,6 +131,8 @@ static char *get_cmd_str(int cmd)
case CMD_RDTEST: return "Truncate"; break;
case CMD_SETLEASE: return "Set Lease"; break;
case CMD_GETLEASE: return "Get Lease"; break;
case CMD_SIGIO: return "Setup SIGIO"; break;
case CMD_WAIT_SIGIO: return "Wait for SIGIO"; break;
}
return "unknown";
}
@@ -562,10 +570,15 @@ char *lease_descriptions[] = {
/* 2 */"Take Write Lease",
/* 3 */"Fail Write Lease if file is open somewhere else",
/* 4 */"Fail Read Lease if opened with write permissions",
/* 5 */"Read lease gets SIGIO on write open",
/* 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",
};
static int64_t lease_tests[][6] =
/* test # Action [offset|flags|arg] length expected server/client */
/* [sigio_wait_time] */
{
/* Various tests to exercise leases */
@@ -600,6 +613,47 @@ static int64_t lease_tests[][6] =
{4, CMD_GETLEASE, F_RDLCK, 0, FAIL, SERVER },
{4, CMD_CLOSE, 0, 0, PASS, SERVER },
/* SECTION 2: Proper SIGIO notifications */
/* Get SIGIO when read lease is broken by write */
{5, CMD_OPEN, O_RDONLY, 0, PASS, CLIENT },
{5, CMD_SETLEASE, F_RDLCK, 0, PASS, CLIENT },
{5, CMD_GETLEASE, F_RDLCK, 0, PASS, CLIENT },
{5, CMD_SIGIO, 0, 0, PASS, CLIENT },
{5, CMD_OPEN, O_RDWR, 0, PASS, SERVER },
{5, CMD_WAIT_SIGIO, 5, 0, PASS, CLIENT },
{5, CMD_CLOSE, 0, 0, PASS, SERVER },
{5, CMD_CLOSE, 0, 0, PASS, CLIENT },
/* Get SIGIO when write lease is broken by read */
{6, CMD_OPEN, O_RDWR, 0, PASS, CLIENT },
{6, CMD_SETLEASE, F_WRLCK, 0, PASS, CLIENT },
{6, CMD_GETLEASE, F_WRLCK, 0, PASS, CLIENT },
{6, CMD_SIGIO, 0, 0, PASS, CLIENT },
{6, CMD_OPEN, O_RDONLY, 0, PASS, SERVER },
{6, CMD_WAIT_SIGIO, 5, 0, PASS, CLIENT },
{6, CMD_CLOSE, 0, 0, PASS, SERVER },
{6, CMD_CLOSE, 0, 0, PASS, CLIENT },
/* Don't get SIGIO when read lease is taken by read */
{7, CMD_OPEN, O_RDONLY, 0, PASS, CLIENT },
{7, CMD_SETLEASE, F_RDLCK, 0, PASS, CLIENT },
{7, CMD_GETLEASE, F_RDLCK, 0, PASS, CLIENT },
{7, CMD_SIGIO, 0, 0, PASS, CLIENT },
{7, CMD_OPEN, O_RDONLY, 0, PASS, SERVER },
{7, CMD_WAIT_SIGIO, 5, 0, FAIL, CLIENT },
{7, CMD_CLOSE, 0, 0, PASS, SERVER },
{7, CMD_CLOSE, 0, 0, PASS, CLIENT },
/* Get SIGIO when Read lease is broken by Write */
{8, CMD_OPEN, O_RDONLY, 0, PASS, CLIENT },
{8, CMD_SETLEASE, F_RDLCK, 0, PASS, CLIENT },
{8, CMD_GETLEASE, F_RDLCK, 0, PASS, CLIENT },
{8, CMD_SIGIO, 0, 0, PASS, CLIENT },
{8, CMD_OPEN, O_RDWR, 0, PASS, SERVER },
{8, CMD_WAIT_SIGIO, 5, 0, PASS, CLIENT },
{8, CMD_CLOSE, 0, 0, PASS, SERVER },
{8, CMD_CLOSE, 0, 0, PASS, CLIENT },
/* indicate end of array */
{0,0,0,0,0,SERVER},
{0,0,0,0,0,CLIENT}
@@ -663,6 +717,70 @@ initialize(HANDLE fd)
}
}
void release_lease(int fd)
{
int rc;
rc = fcntl(fd, F_SETLEASE, F_UNLCK);
if (rc != 0)
fprintf(stderr, "%s Failed to remove lease %d : %d %s\n",
__FILE__, rc, errno, strerror(errno));
}
void lease_break(int sig, siginfo_t *info, void *p)
{
if (debug)
fprintf(stderr, "lease break %d %p fd %d\n",
sig, info, info->si_fd);
got_sigio = 1;
release_lease(f_fd);
}
struct sigaction lease_break_action = {
.sa_sigaction = lease_break,
.sa_flags = SA_SIGINFO,
};
int do_setup_sigio(int fd)
{
int rc;
got_sigio = 0;
rc = sigaction(SIGIO, &lease_break_action, NULL);
if (rc != 0) {
fprintf(stderr, "%s Set '%s' sigaction failed %d\n",
__FILE__, strsignal(SIGIO), rc);
return FAIL;
}
if (debug)
fprintf(stderr, "Set '%s' sigaction on %d\n",
strsignal(SIGIO), fd);
rc = fcntl(fd, F_SETSIG, SIGIO);
if (rc)
fprintf(stderr, "%s Set '%s' sigaction failed %d\n",
__FILE__, strsignal(SIGIO), rc);
return (rc == 0 ? PASS : FAIL);
}
int do_wait_sigio(int32_t time)
{
if (time <= 0)
return FAIL;
while (!got_sigio && time--) {
sleep(1);
}
if (debug > 1 && !got_sigio)
fprintf(stderr, "%s failed to get sigio\n",
__FILE__);
return (got_sigio ? PASS: FAIL);
}
int do_open(int flag)
{
@@ -807,10 +925,13 @@ void recv_ctl(void)
{
int nread;
again:
if ((nread = SOCKET_READ(c_fd, (char*)&ctl, sizeof(ctl))) != sizeof(ctl)) {
if (nread < 0)
if (nread < 0) {
if (errno == EINTR)
goto again;
perror("recv_ctl: read");
else {
} else {
fprintf(stderr, "recv_ctl[%d]: read() returns %d, not %zu as expected\n",
ctl.test, nread, sizeof(ctl));
fprintf(stderr, "socket might has been closed by other locktest\n");
@@ -1118,6 +1239,12 @@ int run(int64_t tests[][6], char *descriptions[])
case CMD_GETLEASE:
result = do_lease(F_GETLEASE, tests[index][ARG], tests[index][ARG]);
break;
case CMD_SIGIO:
result = do_setup_sigio(f_fd);
break;
case CMD_WAIT_SIGIO:
result = do_wait_sigio(tests[index][TIME]);
break;
}
if( result != tests[index][RESULT]) {
fail_flag++;
@@ -1223,6 +1350,12 @@ int run(int64_t tests[][6], char *descriptions[])
case CMD_GETLEASE:
result = do_lease(F_GETLEASE, ctl.offset, ctl.offset);
break;
case CMD_SIGIO:
result = do_setup_sigio(f_fd);
break;
case CMD_WAIT_SIGIO:
result = do_wait_sigio(ctl.offset);
break;
}
if( result != ctl.result ) {
fprintf(stderr,"Failure in %d:%s\n",