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authorLuke Leighton <lkcl@samba.org>2000-05-24 07:29:45 +0000
committerLuke Leighton <lkcl@samba.org>2000-05-24 07:29:45 +0000
commit0fca9817b16bdd2fe6f25fb2dd1836dac108a141 (patch)
tree48956d7154bec854e1c2dcb7f84c991499d9e35c /source3/utils
parent89a532aa2cd0c51bab44e2bc1b44b9a7c0012ae0 (diff)
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2nd evil simultaneous read-write test. forks. one writer. others
are readers. writes between 1 and 20 bytes. reads as much as possible. compares. repeat until end of buffer (fixed size: 131072 bytes) reached. (This used to be commit 26f51a7abbfa9bd9051969dffaebe3cdf9e93c8f)
Diffstat (limited to 'source3/utils')
-rw-r--r--source3/utils/torture.c119
1 files changed, 118 insertions, 1 deletions
diff --git a/source3/utils/torture.c b/source3/utils/torture.c
index 0a3edc4e98..a3a39d83d7 100644
--- a/source3/utils/torture.c
+++ b/source3/utils/torture.c
@@ -29,7 +29,9 @@ static fstring host, workgroup, share, password, username, myname;
static int max_protocol = PROTOCOL_NT1;
static char *sockops="TCP_NODELAY";
static int nprocs=1, numops=100;
+static int procnum; /* records process count number when forking */
static struct cli_state current_cli;
+static fstring randomfname;
static double create_procs(void (*fn)(int));
@@ -270,6 +272,101 @@ static void run_torture(int dummy)
close_connection(&cli);
}
+static BOOL rw_torture3(struct cli_state *c, char *lockfname)
+{
+ int fnum = -1;
+ int i = 0;
+ char buf[131072];
+ char buf_rd[131072];
+ unsigned count;
+ unsigned countprev = 0;
+ unsigned sent = 0;
+
+ srandom(1);
+ for (i = 0; i < sizeof(buf); i += sizeof(uint32))
+ {
+ SIVAL(buf, i, sys_random());
+ }
+
+ if (procnum == 0)
+ {
+ fnum = cli_open(c, lockfname, O_RDWR | O_CREAT | O_EXCL,
+ DENY_NONE);
+ if (fnum == -1) {
+ printf("first open read/write of %s failed (%s)\n",
+ lockfname, cli_errstr(c));
+ return False;
+ }
+ }
+ else
+ {
+ for (i = 0; i < 500 && fnum == -1; i++)
+ {
+ fnum = cli_open(c, lockfname, O_RDONLY,
+ DENY_NONE);
+ msleep(10);
+ }
+ if (fnum == -1) {
+ printf("second open read-only of %s failed (%s)\n",
+ lockfname, cli_errstr(c));
+ return False;
+ }
+ }
+
+ i = 0;
+ for (count = 0; count < sizeof(buf); count += sent)
+ {
+ if (count >= countprev) {
+ printf("%d %8d\r", i, count);
+ fflush(stdout);
+ i++;
+ countprev += (sizeof(buf) / 20);
+ }
+
+ if (procnum == 0)
+ {
+ sent = ((unsigned)sys_random()%(20))+ 1;
+ if (sent > sizeof(buf) - count)
+ {
+ sent = sizeof(buf) - count;
+ }
+
+ if (cli_write(c, fnum, 0, buf+count, count, sent) != sent) {
+ printf("write failed (%s)\n", cli_errstr(c));
+ }
+ }
+ else
+ {
+ sent = cli_read(c, fnum, buf_rd+count, count,
+ sizeof(buf)-count);
+ if (sent < 0)
+ {
+ printf("read failed offset:%d size:%d (%s)\n",
+ count, sizeof(buf)-count,
+ cli_errstr(c));
+ sent = 0;
+ }
+ if (sent > 0)
+ {
+ if (memcmp(buf_rd+count, buf+count, sent) != 0)
+ {
+ printf("read/write compare failed\n");
+ printf("offset: %d req %d recvd %d\n",
+ count, sizeof(buf)-count, sent);
+ break;
+ }
+ }
+ }
+
+ }
+
+ if (!cli_close(c, fnum)) {
+ printf("close failed (%s)\n", cli_errstr(c));
+ }
+
+ return True;
+}
+
static BOOL rw_torture2(struct cli_state *c1, struct cli_state *c2)
{
char *lockfname = "\\torture.lck";
@@ -359,6 +456,21 @@ static void run_readwritetest(int dummy)
close_connection(&cli2);
}
+static void run_readwritemulti(int dummy)
+{
+ static struct cli_state cli;
+ BOOL test;
+
+ cli = current_cli;
+
+ cli_sockopt(&cli, sockops);
+
+ printf("run_readwritemulti: fname %s\n", randomfname);
+ test = rw_torture3(&cli, randomfname);
+
+ close_connection(&cli);
+}
+
int line_count = 0;
/* run a test that simulates an approximate netbench client load */
@@ -1860,6 +1972,7 @@ static double create_procs(void (*fn)(int))
memset((char *)child_status, 0, sizeof(int)*nprocs);
for (i=0;i<nprocs;i++) {
+ procnum = i;
if (fork() == 0) {
pid_t mypid = getpid();
sys_srandom(((int)mypid) ^ ((int)time(NULL)));
@@ -1944,7 +2057,8 @@ static struct {
{"DENY1", run_denytest1, 0},
{"DENY2", run_denytest2, 0},
{"TCON", run_tcon_test, 0},
- {"RW", run_readwritetest, 0},
+ {"RW1", run_readwritetest, 0},
+ {"RW2", run_readwritemulti, FLAG_MULTIPROC},
{NULL, NULL, 0}};
@@ -1962,6 +2076,9 @@ static void run_test(char *name)
}
for (i=0;torture_ops[i].name;i++) {
+ fstrcpy(randomfname, "\\XXXXXXX");
+ mktemp(randomfname);
+
if (strequal(name, torture_ops[i].name)) {
start_timer();
printf("Running %s\n", name);