#define STRINGIFY2(x) #x
#define STRINGIFY(x) STRINGIFY2(x)
+static bool quiet = false;
+
/* Avoid mod by zero */
static unsigned int total_keys = 1;
+/* All the wipe_all ops. */
+static struct op_desc *wipe_alls = NULL;
+static unsigned int num_wipe_alls = 0;
+
/* #define DEBUG_DEPS 1 */
/* Traversals block transactions in the current implementation. */
OP_TDB_WIPE_ALL,
OP_TDB_TRANSACTION_START,
OP_TDB_TRANSACTION_CANCEL,
+ OP_TDB_TRANSACTION_PREPARE_COMMIT,
OP_TDB_TRANSACTION_COMMIT,
OP_TDB_TRAVERSE_READ_START,
OP_TDB_TRAVERSE_START,
OP_TDB_NEXTKEY,
OP_TDB_FETCH,
OP_TDB_DELETE,
+ OP_TDB_REPACK,
};
struct op {
new->group_start = 0;
}
-static void op_add_nothing(const char *filename,
- struct op op[], unsigned int op_num, char *words[])
+static void op_add_nothing(char *filename[], struct op op[],
+ unsigned file, unsigned op_num, char *words[])
{
if (words[2])
- fail(filename, op_num+1, "Expected no arguments");
+ fail(filename[file], op_num+1, "Expected no arguments");
op[op_num].key = tdb_null;
}
-static void op_add_key(const char *filename,
- struct op op[], unsigned int op_num, char *words[])
+static void op_add_key(char *filename[], struct op op[],
+ unsigned file, unsigned op_num, char *words[])
{
if (words[2] == NULL || words[3])
- fail(filename, op_num+1, "Expected just a key");
+ fail(filename[file], op_num+1, "Expected just a key");
- op[op_num].key = make_tdb_data(op, filename, op_num+1, words[2]);
+ op[op_num].key = make_tdb_data(op, filename[file], op_num+1, words[2]);
total_keys++;
}
-static void op_add_key_ret(const char *filename,
- struct op op[], unsigned int op_num, char *words[])
+static void op_add_key_ret(char *filename[], struct op op[],
+ unsigned file, unsigned op_num, char *words[])
{
if (!words[2] || !words[3] || !words[4] || words[5]
|| !streq(words[3], "="))
- fail(filename, op_num+1, "Expected <key> = <ret>");
+ fail(filename[file], op_num+1, "Expected <key> = <ret>");
op[op_num].ret = atoi(words[4]);
- op[op_num].key = make_tdb_data(op, filename, op_num+1, words[2]);
+ op[op_num].key = make_tdb_data(op, filename[file], op_num+1, words[2]);
/* May only be a unique key if it fails */
if (op[op_num].ret != 0)
total_keys++;
}
-static void op_add_key_data(const char *filename,
- struct op op[], unsigned int op_num, char *words[])
+static void op_add_key_data(char *filename[], struct op op[],
+ unsigned file, unsigned op_num, char *words[])
{
if (!words[2] || !words[3] || !words[4] || words[5]
|| !streq(words[3], "="))
- fail(filename, op_num+1, "Expected <key> = <data>");
- op[op_num].key = make_tdb_data(op, filename, op_num+1, words[2]);
- op[op_num].data = make_tdb_data(op, filename, op_num+1, words[4]);
- /* May only be a unique key if it fails */
+ fail(filename[file], op_num+1, "Expected <key> = <data>");
+ op[op_num].key = make_tdb_data(op, filename[file], op_num+1, words[2]);
+ op[op_num].data = make_tdb_data(op, filename[file], op_num+1, words[4]);
+ /* Likely only be a unique key if it fails */
if (!op[op_num].data.dptr)
total_keys++;
+ else if (random() % 2)
+ total_keys++;
}
/* We don't record the keys or data for a traverse, as we don't use them. */
-static void op_add_traverse(const char *filename,
- struct op op[], unsigned int op_num, char *words[])
+static void op_add_traverse(char *filename[], struct op op[],
+ unsigned file, unsigned op_num, char *words[])
{
if (!words[2] || !words[3] || !words[4] || words[5]
|| !streq(words[3], "="))
- fail(filename, op_num+1, "Expected <key> = <data>");
+ fail(filename[file], op_num+1, "Expected <key> = <data>");
op[op_num].key = tdb_null;
}
/* Full traverse info is useful for debugging, but changing it to
* "traversefn" without the data makes the traces *much* smaller! */
-static void op_add_traversefn(const char *filename,
- struct op op[], unsigned int op_num, char *words[])
+static void op_add_traversefn(char *filename[], struct op op[],
+ unsigned file, unsigned op_num, char *words[])
{
if (words[2])
- fail(filename, op_num+1, "Expected no values");
+ fail(filename[file], op_num+1, "Expected no values");
op[op_num].key = tdb_null;
}
/* <seqnum> tdb_store <rec> <rec> <flag> = <ret> */
-static void op_add_store(const char *filename,
- struct op op[], unsigned int op_num, char *words[])
+static void op_add_store(char *filename[], struct op op[],
+ unsigned file, unsigned op_num, char *words[])
{
if (!words[2] || !words[3] || !words[4] || !words[5] || !words[6]
|| words[7] || !streq(words[5], "="))
- fail(filename, op_num+1, "Expect <key> <data> <flag> = <ret>");
+ fail(filename[file], op_num+1, "Expect <key> <data> <flag> = <ret>");
op[op_num].flag = strtoul(words[4], NULL, 0);
op[op_num].ret = atoi(words[6]);
- op[op_num].key = make_tdb_data(op, filename, op_num+1, words[2]);
- op[op_num].data = make_tdb_data(op, filename, op_num+1, words[3]);
+ op[op_num].key = make_tdb_data(op, filename[file], op_num+1, words[2]);
+ op[op_num].data = make_tdb_data(op, filename[file], op_num+1, words[3]);
total_keys++;
}
/* <seqnum> tdb_append <rec> <rec> = <rec> */
-static void op_add_append(const char *filename,
- struct op op[], unsigned int op_num, char *words[])
+static void op_add_append(char *filename[], struct op op[],
+ unsigned file, unsigned op_num, char *words[])
{
if (!words[2] || !words[3] || !words[4] || !words[5] || words[6]
|| !streq(words[4], "="))
- fail(filename, op_num+1, "Expect <key> <data> = <rec>");
+ fail(filename[file], op_num+1, "Expect <key> <data> = <rec>");
- op[op_num].key = make_tdb_data(op, filename, op_num+1, words[2]);
- op[op_num].data = make_tdb_data(op, filename, op_num+1, words[3]);
+ op[op_num].key = make_tdb_data(op, filename[file], op_num+1, words[2]);
+ op[op_num].data = make_tdb_data(op, filename[file], op_num+1, words[3]);
op[op_num].append.post
- = make_tdb_data(op, filename, op_num+1, words[5]);
+ = make_tdb_data(op, filename[file], op_num+1, words[5]);
/* By subtraction, figure out what previous data was. */
op[op_num].append.pre.dptr = op[op_num].append.post.dptr;
}
/* <seqnum> tdb_get_seqnum = <ret> */
-static void op_add_seqnum(const char *filename,
- struct op op[], unsigned int op_num, char *words[])
+static void op_add_seqnum(char *filename[], struct op op[],
+ unsigned file, unsigned op_num, char *words[])
{
if (!words[2] || !words[3] || words[4] || !streq(words[2], "="))
- fail(filename, op_num+1, "Expect = <ret>");
+ fail(filename[file], op_num+1, "Expect = <ret>");
op[op_num].key = tdb_null;
op[op_num].ret = atoi(words[3]);
}
-static void op_add_traverse_start(const char *filename,
- struct op op[],
- unsigned int op_num, char *words[])
+static void op_add_traverse_start(char *filename[], struct op op[],
+ unsigned file, unsigned op_num, char *words[])
{
if (words[2])
- fail(filename, op_num+1, "Expect no arguments");
+ fail(filename[file], op_num+1, "Expect no arguments");
op[op_num].key = tdb_null;
op[op_num].group_len = 0;
}
-static void op_add_transaction(const char *filename, struct op op[],
- unsigned int op_num, char *words[])
+static void op_add_transaction(char *filename[], struct op op[],
+ unsigned file, unsigned op_num, char *words[])
{
if (words[2])
- fail(filename, op_num+1, "Expect no arguments");
+ fail(filename[file], op_num+1, "Expect no arguments");
op[op_num].key = tdb_null;
op[op_num].group_len = 0;
}
-static void op_add_chainlock(const char *filename,
- struct op op[], unsigned int op_num, char *words[])
+static void op_add_chainlock(char *filename[], struct op op[],
+ unsigned file, unsigned op_num, char *words[])
{
if (words[2] == NULL || words[3])
- fail(filename, op_num+1, "Expected just a key");
+ fail(filename[file], op_num+1, "Expected just a key");
/* A chainlock key isn't a key in the normal sense; it doesn't
* have to be in the db at all. Also, we don't want to hash this op. */
- op[op_num].data = make_tdb_data(op, filename, op_num+1, words[2]);
+ op[op_num].data = make_tdb_data(op, filename[file], op_num+1, words[2]);
op[op_num].key = tdb_null;
op[op_num].group_len = 0;
}
-static void op_add_chainlock_ret(const char *filename,
- struct op op[], unsigned int op_num,
- char *words[])
+static void op_add_chainlock_ret(char *filename[], struct op op[],
+ unsigned file, unsigned op_num, char *words[])
{
if (!words[2] || !words[3] || !words[4] || words[5]
|| !streq(words[3], "="))
- fail(filename, op_num+1, "Expected <key> = <ret>");
+ fail(filename[file], op_num+1, "Expected <key> = <ret>");
op[op_num].ret = atoi(words[4]);
- op[op_num].data = make_tdb_data(op, filename, op_num+1, words[2]);
+ op[op_num].data = make_tdb_data(op, filename[file], op_num+1, words[2]);
op[op_num].key = tdb_null;
op[op_num].group_len = 0;
total_keys++;
}
+static void op_add_wipe_all(char *filename[], struct op op[],
+ unsigned file, unsigned op_num, char *words[])
+{
+ if (words[2])
+ fail(filename[file], op_num+1, "Expected no arguments");
+ op[op_num].key = tdb_null;
+ wipe_alls = talloc_realloc(NULL, wipe_alls, struct op_desc,
+ num_wipe_alls+1);
+ wipe_alls[num_wipe_alls].file = file;
+ wipe_alls[num_wipe_alls].op_num = op_num;
+ num_wipe_alls++;
+}
+
static int op_find_start(struct op op[], unsigned int op_num, enum op_type type)
{
unsigned int i;
return 0;
}
-static void op_analyze_transaction(const char *filename,
- struct op op[], unsigned int op_num,
+static void op_analyze_transaction(char *filename[], struct op op[],
+ unsigned file, unsigned op_num,
char *words[])
{
unsigned int start, i;
op[op_num].key = tdb_null;
if (words[2])
- fail(filename, op_num+1, "Expect no arguments");
+ fail(filename[file], op_num+1, "Expect no arguments");
start = op_find_start(op, op_num, OP_TDB_TRANSACTION_START);
if (!start)
- fail(filename, op_num+1, "no transaction start found");
+ fail(filename[file], op_num+1, "no transaction start found");
op[start].group_len = op_num - start;
}
/* We treat chainlocks a lot like transactions, even though that's overkill */
-static void op_analyze_chainlock(const char *filename,
- struct op op[], unsigned int op_num,
- char *words[])
+static void op_analyze_chainlock(char *filename[], struct op op[],
+ unsigned file, unsigned op_num, char *words[])
{
unsigned int i, start;
if (words[2] == NULL || words[3])
- fail(filename, op_num+1, "Expected just a key");
+ fail(filename[file], op_num+1, "Expected just a key");
- op[op_num].data = make_tdb_data(op, filename, op_num+1, words[2]);
+ op[op_num].data = make_tdb_data(op, filename[file], op_num+1, words[2]);
op[op_num].key = tdb_null;
total_keys++;
if (!start)
start = op_find_start(op, op_num, OP_TDB_CHAINLOCK_READ);
if (!start)
- fail(filename, op_num+1, "no initial chainlock found");
+ fail(filename[file], op_num+1, "no initial chainlock found");
/* FIXME: We'd have to do something clever to make this work
* vs. deadlock. */
if (!key_eq(op[start].data, op[op_num].data))
- fail(filename, op_num+1, "nested chainlock calls?");
+ fail(filename[file], op_num+1, "nested chainlock calls?");
op[start].group_len = op_num - start;
for (i = start; i <= op_num; i++)
op[i].group_start = start;
}
-static void op_analyze_traverse(const char *filename,
- struct op op[], unsigned int op_num,
- char *words[])
+static void op_analyze_traverse(char *filename[], struct op op[],
+ unsigned file, unsigned op_num, char *words[])
{
int i, start;
/* = %u means traverse function terminated. */
if (words[2]) {
if (!streq(words[2], "=") || !words[3] || words[4])
- fail(filename, op_num+1, "expect = <num>");
+ fail(filename[file], op_num+1, "expect = <num>");
op[op_num].ret = atoi(words[3]);
} else
op[op_num].ret = 0;
if (!start)
start = op_find_start(op, op_num, OP_TDB_TRAVERSE_READ_START);
if (!start)
- fail(filename, op_num+1, "no traversal start found");
+ fail(filename[file], op_num+1, "no traversal start found");
op[start].group_len = op_num - start;
{
struct depend *dep;
- printf("%s:%u (%u) still waiting for:\n", filename[file], i+1,
- op[file][i].seqnum);
- list_for_each(&op[file][i].pre, dep, pre_list)
- printf(" %s:%u (%u)\n",
- filename[dep->prereq.file], dep->prereq.op_num+1,
- op[dep->prereq.file][dep->prereq.op_num].seqnum);
+ if (!quiet) {
+ printf("%s:%u (%u) still waiting for:\n", filename[file], i+1,
+ op[file][i].seqnum);
+ list_for_each(&op[file][i].pre, dep, pre_list)
+ printf(" %s:%u (%u)\n",
+ filename[dep->prereq.file], dep->prereq.op_num+1,
+ op[dep->prereq.file][dep->prereq.op_num].seqnum);
+ }
check_deps(filename[file], op[file], i);
}
case OP_TDB_TRANSACTION_CANCEL:
try(tdb_transaction_cancel(tdb), op[file][i].ret);
break;
+ case OP_TDB_TRANSACTION_PREPARE_COMMIT:
+ try(tdb_transaction_prepare_commit(tdb),
+ op[file][i].ret);
+ break;
case OP_TDB_TRANSACTION_COMMIT:
try(tdb_transaction_commit(tdb), op[file][i].ret);
break;
case OP_TDB_DELETE:
try(tdb_delete(tdb, op[file][i].key), op[file][i].ret);
break;
+ case OP_TDB_REPACK:
+ /* We do nothing here: the transaction and traverse are
+ * traced. It's in the trace to mark it, since it
+ * may become unnecessary in future. */
+ break;
}
do_post(filename, op, file, i);
}
/* tdbtorture, in particular, can do a tdb_close with a transaction in
* progress. */
-static struct op *maybe_cancel_transaction(const char *filename,
+static struct op *maybe_cancel_transaction(char *filename[], unsigned int file,
struct op *op, unsigned int *num)
{
unsigned int start = op_find_start(op, *num, OP_TDB_TRANSACTION_START);
if (start) {
char *words[] = { "<unknown>", "tdb_close", NULL };
- add_op(filename, &op, *num, op[start].seqnum,
+ add_op(filename[file], &op, *num, op[start].seqnum,
OP_TDB_TRANSACTION_CANCEL);
- op_analyze_transaction(filename, op, *num, words);
+ op_analyze_transaction(filename, op, file, *num, words);
(*num)++;
}
return op;
}
-static struct op *load_tracefile(const char *filename, unsigned int *num,
+static struct op *load_tracefile(char *filename[],
+ unsigned int file,
+ unsigned int *num,
unsigned int *hashsize,
unsigned int *tdb_flags,
unsigned int *open_flags)
struct op *op = talloc_array(NULL, struct op, 1);
char **words;
char **lines;
- char *file;
+ char *contents;
- file = grab_file(NULL, filename, NULL);
- if (!file)
- err(1, "Reading %s", filename);
+ contents = grab_file(NULL, filename[file], NULL);
+ if (!contents)
+ err(1, "Reading %s", filename[file]);
- lines = strsplit(file, file, "\n", NULL);
+ lines = strsplit(contents, contents, "\n", NULL);
if (!lines[0])
- errx(1, "%s is empty", filename);
+ errx(1, "%s is empty", filename[file]);
words = strsplit(lines, lines[0], " ", NULL);
if (!streq(words[1], "tdb_open"))
- fail(filename, 1, "does not start with tdb_open");
+ fail(filename[file], 1, "does not start with tdb_open");
*hashsize = atoi(words[2]);
*tdb_flags = strtoul(words[3], NULL, 0);
words = strsplit(lines, lines[i], " ", NULL);
if (!words[0] || !words[1])
- fail(filename, i+1, "Expected seqnum number and op");
+ fail(filename[file], i+1,
+ "Expected seqnum number and op");
opt = find_keyword(words[1], strlen(words[1]));
if (!opt) {
if (streq(words[1], "tdb_close")) {
if (lines[i+1])
- fail(filename, i+2,
+ fail(filename[file], i+2,
"lines after tdb_close");
*num = i;
talloc_free(lines);
- return maybe_cancel_transaction(filename,
+ return maybe_cancel_transaction(filename, file,
op, num);
}
- fail(filename, i+1, "Unknown operation '%s'", words[1]);
+ fail(filename[file], i+1,
+ "Unknown operation '%s'", words[1]);
}
- add_op(filename, &op, i, atoi(words[0]), opt->type);
- opt->enhance_op(filename, op, i, words);
+ add_op(filename[file], &op, i, atoi(words[0]), opt->type);
+ opt->enhance_op(filename, op, file, i, words);
}
- fprintf(stderr, "%s:%u:last operation is not tdb_close: incomplete?",
- filename, i);
- talloc_free(lines);
+ if (!quiet)
+ fprintf(stderr,
+ "%s:%u:last operation is not tdb_close: incomplete?",
+ filename[file], i);
+
+ talloc_free(contents);
*num = i - 1;
- return maybe_cancel_transaction(filename, op, num);
+ return maybe_cancel_transaction(filename, file, op, num);
}
/* We remember all the keys we've ever seen, and who has them. */
struct op_desc *user;
};
+static bool starts_transaction(const struct op *op)
+{
+ return op->type == OP_TDB_TRANSACTION_START;
+}
+
+static bool in_transaction(const struct op op[], unsigned int i)
+{
+ return op[i].group_start && starts_transaction(&op[op[i].group_start]);
+}
+
+static bool successful_transaction(const struct op *op)
+{
+ return starts_transaction(op)
+ && op[op->group_len].type == OP_TDB_TRANSACTION_COMMIT;
+}
+
+static bool starts_traverse(const struct op *op)
+{
+ return op->type == OP_TDB_TRAVERSE_START
+ || op->type == OP_TDB_TRAVERSE_READ_START;
+}
+
+static bool in_traverse(const struct op op[], unsigned int i)
+{
+ return op[i].group_start && starts_traverse(&op[op[i].group_start]);
+}
+
+static bool starts_chainlock(const struct op *op)
+{
+ return op->type == OP_TDB_CHAINLOCK_READ
+ || op->type == OP_TDB_CHAINLOCK;
+}
+
+static bool in_chainlock(const struct op op[], unsigned int i)
+{
+ return op[i].group_start && starts_chainlock(&op[op[i].group_start]);
+}
+
static const TDB_DATA must_not_exist;
static const TDB_DATA must_exist;
static const TDB_DATA not_exists_or_empty;
/* NULL means doesn't care if it exists or not, &must_exist means
* it must exist but we don't care what, &must_not_exist means it must
* not exist, otherwise the data it needs. */
-static const TDB_DATA *needs(const struct op *op)
+static const TDB_DATA *needs(const TDB_DATA *key, const struct op *op)
{
+ /* Look through for an op in this transaction which needs this key. */
+ if (starts_transaction(op) || starts_chainlock(op)) {
+ unsigned int i;
+ const TDB_DATA *need = NULL;
+
+ for (i = 1; i < op->group_len; i++) {
+ if (key_eq(op[i].key, *key)
+ || op[i].type == OP_TDB_WIPE_ALL) {
+ need = needs(key, &op[i]);
+ /* tdb_exists() is special: there might be
+ * something in the transaction with more
+ * specific requirements. Other ops don't have
+ * specific requirements (eg. store or delete),
+ * but they change the value so we can't get
+ * more information from future ops. */
+ if (op[i].type != OP_TDB_EXISTS)
+ break;
+ }
+ }
+
+ return need;
+ }
+
switch (op->type) {
/* FIXME: Pull forward deps, since we can deadlock */
case OP_TDB_CHAINLOCK:
}
-static bool starts_transaction(const struct op *op)
-{
- return op->type == OP_TDB_TRANSACTION_START;
-}
-
-static bool in_transaction(const struct op op[], unsigned int i)
-{
- return op[i].group_start && starts_transaction(&op[op[i].group_start]);
-}
-
-static bool successful_transaction(const struct op *op)
-{
- return starts_transaction(op)
- && op[op->group_len].type == OP_TDB_TRANSACTION_COMMIT;
-}
-
-static bool starts_traverse(const struct op *op)
-{
- return op->type == OP_TDB_TRAVERSE_START
- || op->type == OP_TDB_TRAVERSE_READ_START;
-}
-
-static bool in_traverse(const struct op op[], unsigned int i)
-{
- return op[i].group_start && starts_traverse(&op[op[i].group_start]);
-}
-
-static bool starts_chainlock(const struct op *op)
-{
- return op->type == OP_TDB_CHAINLOCK_READ
- || op->type == OP_TDB_CHAINLOCK;
-}
-
-static bool in_chainlock(const struct op op[], unsigned int i)
-{
- return op[i].group_start && starts_chainlock(&op[op[i].group_start]);
-}
-
/* What's the data after this op? pre if nothing changed. */
static const TDB_DATA *gives(const TDB_DATA *key, const TDB_DATA *pre,
const struct op *op)
for (i = 1; i < op->group_len; i++) {
/* This skips nested transactions, too */
- if (key_eq(op[i].key, *key))
+ if (key_eq(op[i].key, *key)
+ || op[i].type == OP_TDB_WIPE_ALL)
pre = gives(key, pre, &op[i]);
}
return pre;
return pre;
}
+static void add_hash_user(struct keyinfo *hash,
+ unsigned int h,
+ struct op *op[],
+ unsigned int file,
+ unsigned int op_num)
+{
+ hash[h].user = talloc_realloc(hash, hash[h].user,
+ struct op_desc, hash[h].num_users+1);
+
+ /* If it's in a transaction, it's the transaction which
+ * matters from an analysis POV. */
+ if (in_transaction(op[file], op_num)
+ || in_chainlock(op[file], op_num)) {
+ unsigned i;
+
+ op_num = op[file][op_num].group_start;
+
+ /* Don't include twice. */
+ for (i = 0; i < hash[h].num_users; i++) {
+ if (hash[h].user[i].file == file
+ && hash[h].user[i].op_num == op_num)
+ return;
+ }
+ }
+ hash[h].user[hash[h].num_users].op_num = op_num;
+ hash[h].user[hash[h].num_users].file = file;
+ hash[h].num_users++;
+}
+
static struct keyinfo *hash_ops(struct op *op[], unsigned int num_ops[],
unsigned int num)
{
talloc_free(op[i][j].key.dptr);
op[i][j].key.dptr = hash[h].key.dptr;
}
- hash[h].user = talloc_realloc(hash, hash[h].user,
- struct op_desc,
- hash[h].num_users+1);
-
- /* If it's in a transaction, it's the transaction which
- * matters from an analysis POV. */
- if (in_transaction(op[i], j)
- || in_chainlock(op[i], j)) {
- unsigned start = op[i][j].group_start;
-
- /* Don't include twice. */
- if (hash[h].num_users
- && hash[h].user[hash[h].num_users-1].file
- == i
- && hash[h].user[hash[h].num_users-1].op_num
- == start)
- continue;
- hash[h].user[hash[h].num_users].op_num = start;
- } else
- hash[h].user[hash[h].num_users].op_num = j;
- hash[h].user[hash[h].num_users].file = i;
- hash[h].num_users++;
+ add_hash_user(hash, h, op, i, j);
}
}
+ /* Any wipe all entries need adding to all hash entries. */
+ for (h = 0; h < total_keys*2; h++) {
+ if (!hash[h].num_users)
+ continue;
+
+ for (i = 0; i < num_wipe_alls; i++)
+ add_hash_user(hash, h, op,
+ wipe_alls[i].file, wipe_alls[i].op_num);
+ }
+
return hash;
}
static bool satisfies(const TDB_DATA *key, const TDB_DATA *data,
const struct op *op)
{
- const TDB_DATA *need = NULL;
-
- if (starts_transaction(op) || starts_chainlock(op)) {
- unsigned int i;
-
- /* Look through for an op in this transaction which
- * needs this key. */
- for (i = 1; i < op->group_len; i++) {
- if (key_eq(op[i].key, *key)) {
- need = needs(&op[i]);
- /* tdb_exists() is special: there might be
- * something in the transaction with more
- * specific requirements. Other ops don't have
- * specific requirements (eg. store or delete),
- * but they change the value so we can't get
- * more information from future ops. */
- if (op[i].type != OP_TDB_EXISTS)
- break;
- }
- }
- } else
- need = needs(op);
+ const TDB_DATA *need = needs(key, op);
/* Don't need anything? Cool. */
if (!need)
* number unlocked (the race can cause less detectable ordering problems,
* in which case we'll deadlock and report: fix manually in that case).
*/
-static void figure_deps(char *filename[], struct op *op[],
- const TDB_DATA *key, struct op_desc user[],
+static bool figure_deps(char *filename[], struct op *op[],
+ const TDB_DATA *key, const TDB_DATA *data,
+ struct op_desc user[],
unsigned num_users, unsigned num_files)
{
- /* We assume database starts empty. */
- const struct TDB_DATA *data = &tdb_null;
unsigned int fuzz;
/* We prefer to keep strict seqnum order if possible: it's the
}
if (fuzz >= 100)
- fail(filename[user[0].file], user[0].op_num+1,
- "Could not resolve inter-dependencies");
+ return false;
check_dep_sorting(user, num_users, num_files);
+ return true;
+}
+
+/* We're having trouble sorting out dependencies for this key. Assume that it's
+ * a pre-existing record in the db, so determine a likely value. */
+static const TDB_DATA *preexisting_data(char *filename[], struct op *op[],
+ const TDB_DATA *key,
+ struct op_desc *user,
+ unsigned int num_users)
+{
+ unsigned int i;
+ const TDB_DATA *data;
+
+ for (i = 0; i < num_users; i++) {
+ data = needs(key, &op[user->file][user->op_num]);
+ if (data && data != &must_not_exist) {
+ if (!quiet)
+ printf("%s:%u: needs pre-existing record\n",
+ filename[user->file], user->op_num+1);
+ return data;
+ }
+ }
+ return &tdb_null;
}
-static void sort_ops(struct keyinfo hash[], char *filename[], struct op *op[],
+static void sort_ops(struct tdb_context *tdb,
+ struct keyinfo hash[], char *filename[], struct op *op[],
unsigned int num)
{
unsigned int h;
struct op_desc *user = hash[h].user;
qsort(user, hash[h].num_users, sizeof(user[0]), compare_seqnum);
- figure_deps(filename, op, &hash[h].key, user, hash[h].num_users,
- num);
+ if (!figure_deps(filename, op, &hash[h].key, &tdb_null, user,
+ hash[h].num_users, num)) {
+ const TDB_DATA *data;
+
+ data = preexisting_data(filename, op, &hash[h].key,
+ user, hash[h].num_users);
+ /* Give the first op what it wants: does that help? */
+ if (!figure_deps(filename, op, &hash[h].key, data, user,
+ hash[h].num_users, num))
+ fail(filename[user[0].file], user[0].op_num+1,
+ "Could not resolve inter-dependencies");
+ if (tdb_store(tdb, hash[h].key, *data, TDB_INSERT) != 0)
+ errx(1, "Could not store initial value");
+ }
}
}
}
#endif
-static void derive_dependencies(char *filename[],
+static void derive_dependencies(struct tdb_context *tdb,
+ char *filename[],
struct op *op[], unsigned int num_ops[],
unsigned int num)
{
hash = hash_ops(op, num_ops, num);
/* Sort them by sequence number. */
- sort_ops(hash, filename, op, num);
+ sort_ops(tdb, hash, filename, op, num);
/* Create dependencies back to the last change, rather than
* creating false dependencies by naively making each one
err(1, "fork failed");
case 0:
close(fds[1]);
- tdb = tdb_open_ex(argv[1], hashsize[i],
- tdb_flags[i]|TDB_NOSYNC,
- open_flags[i], 0600, NULL, hash_key);
+ tdb = tdb_open(argv[1], hashsize[i],
+ tdb_flags[i], open_flags[i], 0600);
if (!tdb)
err(1, "Opening tdb %s", argv[1]);
/* Let everything settle. */
sleep(1);
- printf("Starting run...");
+ if (!quiet)
+ printf("Starting run...");
fflush(stdout);
gettimeofday(&start, NULL);
/* Tell them all to go! Any write of sufficient length will do. */
exit(1);
gettimeofday(&end, NULL);
- printf("done\n");
+ if (!quiet)
+ printf("done\n");
if (end.tv_usec < start.tv_usec) {
end.tv_usec += 1000000;
return diff;
}
+static void init_tdb(struct tdb_context *master_tdb,
+ const char *name, unsigned int hashsize)
+{
+ TDB_DATA key, data;
+ struct tdb_context *tdb;
+
+ tdb = tdb_open(name, hashsize, TDB_CLEAR_IF_FIRST|TDB_NOSYNC,
+ O_CREAT|O_TRUNC|O_RDWR, 0600);
+ if (!tdb)
+ errx(1, "opening tdb %s", name);
+
+ for (key = tdb_firstkey(master_tdb);
+ key.dptr;
+ key = tdb_nextkey(master_tdb, key)) {
+ data = tdb_fetch(master_tdb, key);
+ if (tdb_store(tdb, key, data, TDB_INSERT) != 0)
+ errx(1, "Failed to store initial key");
+ }
+ tdb_close(tdb);
+}
+
int main(int argc, char *argv[])
{
struct timeval diff;
unsigned int i, num_ops[argc], hashsize[argc], tdb_flags[argc], open_flags[argc];
struct op *op[argc];
int fds[2];
+ struct tdb_context *master;
+ unsigned int runs = 1;
if (argc < 3)
- errx(1, "Usage: %s <tdbfile> <tracefile>...", argv[0]);
+ errx(1, "Usage: %s [--quiet] [-n <number>] <tdbfile> <tracefile>...", argv[0]);
+
+ if (streq(argv[1], "--quiet")) {
+ quiet = true;
+ argv++;
+ argc--;
+ }
+ if (streq(argv[1], "-n")) {
+ runs = atoi(argv[2]);
+ argv += 2;
+ argc -= 2;
+ }
pipes = talloc_array(NULL, struct pipe, argc - 1);
for (i = 0; i < argc - 2; i++) {
- printf("Loading tracefile %s...", argv[2+i]);
+ if (!quiet)
+ printf("Loading tracefile %s...", argv[2+i]);
fflush(stdout);
- op[i] = load_tracefile(argv[2+i], &num_ops[i], &hashsize[i],
+ op[i] = load_tracefile(argv+2, i, &num_ops[i], &hashsize[i],
&tdb_flags[i], &open_flags[i]);
if (pipe(pipes[i].fd) != 0)
err(1, "creating pipe");
- printf("done\n");
+ /* Don't truncate, or clear if first: we do that. */
+ open_flags[i] &= ~(O_TRUNC);
+ tdb_flags[i] &= ~(TDB_CLEAR_IF_FIRST);
+ /* Open NOSYNC, to save time. */
+ tdb_flags[i] |= TDB_NOSYNC;
+ if (!quiet)
+ printf("done\n");
}
- printf("Calculating inter-dependencies...");
- fflush(stdout);
- derive_dependencies(argv+2, op, num_ops, i);
- printf("done\n");
-
- /* Don't fork for single arg case: simple debugging. */
- if (argc == 3) {
- struct tdb_context *tdb;
- tdb = tdb_open_ex(argv[1], hashsize[0], tdb_flags[0]|TDB_NOSYNC,
- open_flags[0], 0600, NULL, hash_key);
- printf("Single threaded run...");
+ /* Dependency may figure we need to create seed records. */
+ master = tdb_open(NULL, 0, TDB_INTERNAL, O_RDWR, 0);
+ if (!quiet) {
+ printf("Calculating inter-dependencies...");
fflush(stdout);
+ }
+ derive_dependencies(master, argv+2, op, num_ops, i);
+ if (!quiet)
+ printf("done\n");
- run_ops(tdb, pipes[0].fd[0], argv+2, op, 0, 1, num_ops[0],
- false);
- check_deps(argv[2], op[0], num_ops[0]);
+ for (i = 0; i < runs; i++) {
+ init_tdb(master, argv[1], hashsize[0]);
- printf("done\n");
- exit(0);
- }
+ /* Don't fork for single arg case: simple debugging. */
+ if (argc == 3) {
+ struct timeval start, end;
+ struct tdb_context *tdb;
+
+ tdb = tdb_open(argv[1], hashsize[0], tdb_flags[0],
+ open_flags[0], 0600);
+ if (!quiet) {
+ printf("Single threaded run...");
+ fflush(stdout);
+ }
+ gettimeofday(&start, NULL);
+
+ run_ops(tdb, pipes[0].fd[0], argv+2, op, 0, 1,
+ num_ops[0], false);
+ gettimeofday(&end, NULL);
+ if (!quiet)
+ printf("done\n");
+ tdb_close(tdb);
+
+ check_deps(argv[2], op[0], num_ops[0]);
+ if (end.tv_usec < start.tv_usec) {
+ end.tv_usec += 1000000;
+ end.tv_sec--;
+ }
+ diff.tv_sec = end.tv_sec - start.tv_sec;
+ diff.tv_usec = end.tv_usec - start.tv_usec;
+ goto print_time;
+ }
- if (pipe(fds) != 0)
- err(1, "creating pipe");
+ if (pipe(fds) != 0)
+ err(1, "creating pipe");
#if TRAVERSALS_TAKE_TRANSACTION_LOCK
- if (pipe(pipes[argc-2].fd) != 0)
- err(1, "creating pipe");
- backoff_fd = pipes[argc-2].fd[1];
- set_nonblock(pipes[argc-2].fd[1]);
- set_nonblock(pipes[argc-2].fd[0]);
+ if (pipe(pipes[argc-2].fd) != 0)
+ err(1, "creating pipe");
+ backoff_fd = pipes[argc-2].fd[1];
+ set_nonblock(pipes[argc-2].fd[1]);
+ set_nonblock(pipes[argc-2].fd[0]);
#endif
- do {
- diff = run_test(argv, num_ops, hashsize, tdb_flags, open_flags,
- op, fds);
- } while (handle_backoff(op, pipes[argc-2].fd[0]));
+ do {
+ diff = run_test(argv, num_ops, hashsize, tdb_flags,
+ open_flags, op, fds);
+ } while (handle_backoff(op, pipes[argc-2].fd[0]));
+
+ print_time:
+ if (!quiet)
+ printf("Time replaying: ");
+ printf("%lu usec\n", diff.tv_sec * 1000000UL + diff.tv_usec);
+ }
- printf("Time replaying: %lu usec\n",
- diff.tv_sec * 1000000UL + diff.tv_usec);
-
exit(0);
}
projects / ccan / blobdiff