X-Git-Url: http://git.ozlabs.org/?a=blobdiff_plain;ds=sidebyside;f=ccan%2Ftdb%2Ftest%2Frun-open-during-transaction.c;fp=ccan%2Ftdb%2Ftest%2Frun-open-during-transaction.c;h=0000000000000000000000000000000000000000;hb=7581be1b694700155dbb0edb91a772babf160545;hp=e7feb03fab960ec8c2a0f75af2f3e2fd3eae6d01;hpb=98b8ada203137a324f1712c042f7f6f3a5ef9ea0;p=ccan diff --git a/ccan/tdb/test/run-open-during-transaction.c b/ccan/tdb/test/run-open-during-transaction.c deleted file mode 100644 index e7feb03f..00000000 --- a/ccan/tdb/test/run-open-during-transaction.c +++ /dev/null @@ -1,186 +0,0 @@ -#define _XOPEN_SOURCE 500 -#include -#include "lock-tracking.h" - -static ssize_t pwrite_check(int fd, const void *buf, size_t count, off_t offset); -static ssize_t write_check(int fd, const void *buf, size_t count); -static int ftruncate_check(int fd, off_t length); - -#define pwrite pwrite_check -#define write write_check -#define fcntl fcntl_with_lockcheck -#define ftruncate ftruncate_check - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include "external-agent.h" -#include "logging.h" - -static struct agent *agent; -static bool opened; -static int errors = 0; -static bool clear_if_first; -#define TEST_DBNAME "run-open-during-transaction.tdb" - -#undef write -#undef pwrite -#undef fcntl -#undef ftruncate - -static bool is_same(const char *snapshot, const char *latest, off_t len) -{ - unsigned i; - - for (i = 0; i < len; i++) { - if (snapshot[i] != latest[i]) - return false; - } - return true; -} - -static bool compare_file(int fd, const char *snapshot, off_t snapshot_len) -{ - char *contents; - bool same; - - /* over-length read serves as length check. */ - contents = malloc(snapshot_len+1); - same = pread(fd, contents, snapshot_len+1, 0) == snapshot_len - && is_same(snapshot, contents, snapshot_len); - free(contents); - return same; -} - -static void check_file_intact(int fd) -{ - enum agent_return ret; - struct stat st; - char *contents; - - fstat(fd, &st); - contents = malloc(st.st_size); - if (pread(fd, contents, st.st_size, 0) != st.st_size) { - diag("Read fail"); - errors++; - return; - } - - /* Ask agent to open file. */ - ret = external_agent_operation(agent, clear_if_first ? - OPEN_WITH_CLEAR_IF_FIRST : - OPEN, - TEST_DBNAME); - - /* It's OK to open it, but it must not have changed! */ - if (!compare_file(fd, contents, st.st_size)) { - diag("Agent changed file after opening %s", - agent_return_name(ret)); - errors++; - } - - if (ret == SUCCESS) { - ret = external_agent_operation(agent, CLOSE, NULL); - if (ret != SUCCESS) { - diag("Agent failed to close tdb: %s", - agent_return_name(ret)); - errors++; - } - } else if (ret != WOULD_HAVE_BLOCKED) { - diag("Agent opening file gave %s", - agent_return_name(ret)); - errors++; - } - - free(contents); -} - -static void after_unlock(int fd) -{ - if (opened) - check_file_intact(fd); -} - -static ssize_t pwrite_check(int fd, - const void *buf, size_t count, off_t offset) -{ - if (opened) - check_file_intact(fd); - - return pwrite(fd, buf, count, offset); -} - -static ssize_t write_check(int fd, const void *buf, size_t count) -{ - if (opened) - check_file_intact(fd); - - return write(fd, buf, count); -} - -static int ftruncate_check(int fd, off_t length) -{ - if (opened) - check_file_intact(fd); - - return ftruncate(fd, length); - -} - -int main(int argc, char *argv[]) -{ - const int flags[] = { TDB_DEFAULT, - TDB_CLEAR_IF_FIRST, - TDB_NOMMAP, - TDB_CLEAR_IF_FIRST | TDB_NOMMAP }; - int i; - struct tdb_context *tdb; - TDB_DATA key, data; - - plan_tests(20); - agent = prepare_external_agent(); - if (!agent) - err(1, "preparing agent"); - - unlock_callback = after_unlock; - for (i = 0; i < sizeof(flags)/sizeof(flags[0]); i++) { - clear_if_first = (flags[i] & TDB_CLEAR_IF_FIRST); - diag("Test with %s and %s\n", - clear_if_first ? "CLEAR" : "DEFAULT", - (flags[i] & TDB_NOMMAP) ? "no mmap" : "mmap"); - unlink(TEST_DBNAME); - tdb = tdb_open_ex(TEST_DBNAME, 1024, flags[i], - O_CREAT|O_TRUNC|O_RDWR, 0600, - &taplogctx, NULL); - ok1(tdb); - - opened = true; - ok1(tdb_transaction_start(tdb) == 0); - key.dsize = strlen("hi"); - key.dptr = (void *)"hi"; - data.dptr = (void *)"world"; - data.dsize = strlen("world"); - - ok1(tdb_store(tdb, key, data, TDB_INSERT) == 0); - ok1(tdb_transaction_commit(tdb) == 0); - ok(!errors, "We had %u open errors", errors); - - opened = false; - tdb_close(tdb); - } - - return exit_status(); -}