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author | Luke Leighton <lkcl@samba.org> | 2000-05-24 07:29:45 +0000 |
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committer | Luke Leighton <lkcl@samba.org> | 2000-05-24 07:29:45 +0000 |
commit | 0fca9817b16bdd2fe6f25fb2dd1836dac108a141 (patch) | |
tree | 48956d7154bec854e1c2dcb7f84c991499d9e35c /source3/utils | |
parent | 89a532aa2cd0c51bab44e2bc1b44b9a7c0012ae0 (diff) | |
download | samba-0fca9817b16bdd2fe6f25fb2dd1836dac108a141.tar.gz samba-0fca9817b16bdd2fe6f25fb2dd1836dac108a141.tar.bz2 samba-0fca9817b16bdd2fe6f25fb2dd1836dac108a141.zip |
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.c | 119 |
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); |