#include <ccan/talloc/talloc.h>
#include <ccan/str_talloc/str_talloc.h>
#include <ccan/str/str.h>
+#include <ccan/list/list.h>
#include <err.h>
#include <ctype.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/wait.h>
#include <sys/time.h>
#define STRINGIFY2(x) #x
#define STRINGIFY(x) STRINGIFY2(x)
+/* Avoid mod by zero */
+static unsigned int total_keys = 1;
+
+/* #define DEBUG_DEPS 1 */
+
+struct pipe {
+ int fd[2];
+};
+static struct pipe *pipes;
+
+static void __attribute__((noreturn)) fail(const char *filename,
+ unsigned int line,
+ const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ fprintf(stderr, "%s:%u: FAIL: ", filename, line);
+ vfprintf(stderr, fmt, ap);
+ fprintf(stderr, "\n");
+ va_end(ap);
+ exit(1);
+}
+
/* Try or die. */
-#define try(expr, op) \
+#define try(expr, expect) \
do { \
int ret = (expr); \
- if (ret < 0) { \
- if (tdb_error(tdb) != -op.ret) \
- errx(1, "Line %u: " STRINGIFY(expr) \
- "= %i: %s", \
- i+1, ret, tdb_errorstr(tdb)); \
- } else if (ret != op.ret) \
- errx(1, "Line %u: " STRINGIFY(expr) "= %i: %s", \
- i+1, ret, tdb_errorstr(tdb)); \
+ if (ret != (expect)) \
+ fail(filename, i+1, STRINGIFY(expr) "= %i", ret); \
} while (0)
/* Try or imitate results. */
do { \
int ret = expr; \
if (ret != expect) { \
- warnx("Line %u: %s gave %i not %i", \
- i+1, STRINGIFY(expr), ret, expect); \
+ fprintf(stderr, "%s:%u: %s gave %i not %i", \
+ filename, i+1, STRINGIFY(expr), ret, expect); \
if (expect == 0) \
force; \
else \
return memcmp(a.dptr, b.dptr, a.dsize) == 0;
}
+/* This is based on the hash algorithm from gdbm */
+static unsigned int hash_key(TDB_DATA *key)
+{
+ uint32_t value; /* Used to compute the hash value. */
+ uint32_t i; /* Used to cycle through random values. */
+
+ /* Set the initial value from the key size. */
+ for (value = 0x238F13AF ^ key->dsize, i=0; i < key->dsize; i++)
+ value = (value + (key->dptr[i] << (i*5 % 24)));
+
+ return (1103515243 * value + 12345);
+}
+
enum op_type {
OP_TDB_LOCKALL,
OP_TDB_LOCKALL_MARK,
OP_TDB_NEXTKEY,
OP_TDB_FETCH,
OP_TDB_DELETE,
- OP_TDB_CLOSE,
};
struct op {
+ unsigned int serial;
enum op_type op;
TDB_DATA key;
TDB_DATA data;
int ret;
+ /* Who is waiting for us? */
+ struct list_head post;
+ /* How many are we waiting for? */
+ unsigned int pre;
+
union {
int flag; /* open and store */
struct traverse *trav; /* traverse start */
+ TDB_DATA post_append; /* append */
};
};
-static unsigned char hex_char(unsigned int line, char c)
+static unsigned char hex_char(const char *filename, unsigned int line, char c)
{
c = toupper(c);
if (c >= 'A' && c <= 'F')
return c - 'A' + 10;
if (c >= '0' && c <= '9')
return c - '0';
- errx(1, "Line %u: invalid hex character '%c'", line, c);
+ fail(filename, line, "invalid hex character '%c'", c);
}
/* TDB data is <size>:<%02x>* */
static TDB_DATA make_tdb_data(const void *ctx,
- unsigned int line, const char *word)
+ const char *filename, unsigned int line,
+ const char *word)
{
TDB_DATA data;
unsigned int i;
const char *p;
+ if (streq(word, "NULL"))
+ return tdb_null;
+
data.dsize = atoi(word);
data.dptr = talloc_array(ctx, unsigned char, data.dsize);
p = strchr(word, ':');
if (!p)
- errx(1, "Line %u: Invalid tdb data '%s'", line, word);
+ fail(filename, line, "invalid tdb data '%s'", word);
p++;
for (i = 0; i < data.dsize; i++)
- data.dptr[i] = hex_char(line, p[i*2])*16
- + hex_char(line, p[i*2+1]);
+ data.dptr[i] = hex_char(filename, line, p[i*2])*16
+ + hex_char(filename, line, p[i*2+1]);
+
return data;
}
-static struct op *add_op(struct op **op, unsigned int i,
- enum op_type type, const char *key, const char *data,
- int ret)
+static void add_op(const char *filename, struct op **op, unsigned int i,
+ unsigned int serial, enum op_type type)
{
struct op *new;
*op = talloc_realloc(NULL, *op, struct op, i+1);
new = (*op) + i;
new->op = type;
- new->ret = ret;
- if (key)
- new->key = make_tdb_data(*op, i+1, key);
- else
- new->key = tdb_null;
- if (data)
- new->data = make_tdb_data(*op, i+1, data);
- else
- new->data = tdb_null;
- return new;
+ new->serial = serial;
+ new->pre = 0;
+ new->ret = 0;
}
-static int get_len(TDB_DATA key, TDB_DATA data, void *private_data)
+static void op_add_nothing(const char *filename,
+ struct op op[], unsigned int op_num, char *words[])
{
- return data.dsize;
+ if (words[2])
+ fail(filename, 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[])
+{
+ if (words[2] == NULL || words[3])
+ fail(filename, op_num+1, "Expected just a key");
+
+ op[op_num].key = make_tdb_data(op, filename, op_num+1, words[2]);
+ if (op[op_num].op != OP_TDB_TRAVERSE)
+ total_keys++;
+}
+
+static void op_add_key_ret(const char *filename,
+ struct op op[], unsigned int op_num, char *words[])
+{
+ if (!words[2] || !words[3] || !words[4] || words[5]
+ || !streq(words[3], "="))
+ fail(filename, 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]);
+ /* 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[])
+{
+ 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 */
+ if (!op[op_num].data.dptr)
+ total_keys++;
+}
+
+/* <serial> tdb_store <rec> <rec> <flag> = <ret> */
+static void op_add_store(const char *filename,
+ struct op op[], unsigned int 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>");
+
+ 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]);
+ total_keys++;
+}
+
+/* <serial> tdb_append <rec> <rec> = <rec> */
+static void op_add_append(const char *filename,
+ struct op op[], unsigned int 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>");
+
+ 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].post_append
+ = make_tdb_data(op, filename, op_num+1, words[5]);
+ total_keys++;
+}
+
+/* <serial> tdb_get_seqnum = <ret> */
+static void op_add_seqnum(const char *filename,
+ struct op op[], unsigned int op_num, char *words[])
+{
+ if (!words[2] || !words[3] || words[4] || !streq(words[2], "="))
+ fail(filename, op_num+1, "Expect = <ret>");
+
+ op[op_num].key = tdb_null;
+ op[op_num].ret = atoi(words[3]);
+}
+
+static void op_add_traverse(const char *filename,
+ struct op op[], unsigned int op_num, char *words[])
+{
+ if (words[2])
+ fail(filename, op_num+1, "Expect no arguments");
+
+ op[op_num].key = tdb_null;
+ op[op_num].trav = NULL;
}
struct traverse_hash {
struct traverse_hash *hash;
};
-/* This is based on the hash algorithm from gdbm */
-static unsigned int hash_key(TDB_DATA *key)
-{
- uint32_t value; /* Used to compute the hash value. */
- uint32_t i; /* Used to cycle through random values. */
-
- /* Set the initial value from the key size. */
- for (value = 0x238F13AF ^ key->dsize, i=0; i < key->dsize; i++)
- value = (value + (key->dptr[i] << (i*5 % 24)));
-
- return (1103515243 * value + 12345);
-}
-
/* A trivial traversal is one which doesn't terminate early and only
* plays with its own record. We can reliably replay these even if
* traverse order changes. */
static bool is_trivial_traverse(struct op op[], unsigned int end)
{
+#if 0
unsigned int i;
TDB_DATA cur = tdb_null;
return false;
}
return true;
+#endif
+ /* With multiple things happening at once, no traverse is trivial. */
+ return false;
}
-static void analyze_traverse(struct op op[], unsigned int end)
+static void op_analyze_traverse(const char *filename,
+ struct op op[], unsigned int op_num,
+ char *words[])
{
int i;
struct traverse *trav = talloc(op, struct traverse);
+ /* = %u means traverse function terminated. */
+ if (words[2]) {
+ if (!streq(words[2], "=") || !words[3] || words[4])
+ fail(filename, op_num+1, "expect = <num>");
+ op[op_num].ret = atoi(words[3]);
+ } else
+ op[op_num].ret = 0;
+
trav->num = 0;
- trav->end = end;
- for (i = end-1; i >= 0; i--) {
+ trav->end = op_num;
+ for (i = op_num-1; i >= 0; i--) {
if (op[i].op == OP_TDB_TRAVERSE)
trav->num++;
if (op[i].op != OP_TDB_TRAVERSE_READ_START
}
if (i < 0)
- errx(1, "Line %u: no traversal start found", end+1);
+ fail(filename, op_num+1, "no traversal start found");
op[i].trav = trav;
- if (is_trivial_traverse(op+i, end-i)) {
+ if (is_trivial_traverse(op+i, op_num-i)) {
/* Fill in a plentiful hash table. */
op[i].trav->hash = talloc_zero_array(op[i].trav,
struct traverse_hash,
trav->num * 2);
- for (; i < end; i++) {
+ for (; i < op_num; i++) {
unsigned int h;
if (op[i].op != OP_TDB_TRAVERSE)
continue;
trav->hash = NULL;
}
-static unsigned run_ops(struct tdb_context *tdb, const struct op op[],
+/* Keep -Wmissing-declarations happy: */
+const struct op_table *
+find_keyword (register const char *str, register unsigned int len);
+
+#include "keywords.c"
+
+static int get_len(TDB_DATA key, TDB_DATA data, void *private_data)
+{
+ return data.dsize;
+}
+
+static unsigned run_ops(struct tdb_context *tdb,
+ int pre_fd,
+ const char *filename,
+ struct op op[],
unsigned int start, unsigned int stop);
struct traverse_info {
- const struct op *op;
+ struct op *op;
+ const char *filename;
+ int pre_fd;
unsigned int start;
unsigned int i;
};
while (trav->hash[h].index) {
if (key_eq(trav->hash[h].key, key)) {
- run_ops(tdb, tinfo->op, trav->hash[h].index, trav->end);
+ run_ops(tdb, tinfo->pre_fd, tinfo->filename, tinfo->op,
+ trav->hash[h].index, trav->end);
tinfo->i++;
return 0;
}
h = (h + 1) % (trav->num * 2);
}
- errx(1, "Traverse at %u: unexpected key", tinfo->start + 1);
+ fail(tinfo->filename, tinfo->start + 1, "unexpected traverse key");
}
/* More complex. Just do whatever's they did at the n'th entry. */
struct traverse_info *tinfo = _tinfo;
struct traverse *trav = tinfo->op[tinfo->start].trav;
- if (tinfo->i == trav->end)
- errx(1, "Transaction starting line %u did not terminate",
- tinfo->start + 1);
+ if (tinfo->i == trav->end) {
+ /* This can happen if traverse expects to be empty. */
+ if (tinfo->start + 1 == trav->end)
+ return 1;
+ fail(tinfo->filename, tinfo->start + 1,
+ "traverse did not terminate");
+ }
if (tinfo->op[tinfo->i].op != OP_TDB_TRAVERSE)
- errx(1, "Transaction starting line %u terminated early",
- tinfo->start + 1);
+ fail(tinfo->filename, tinfo->start + 1,
+ "%s:%u:traverse terminated early");
/* Run any normal ops. */
- tinfo->i = run_ops(tdb, tinfo->op, tinfo->i+1, trav->end);
+ tinfo->i = run_ops(tdb, tinfo->pre_fd, tinfo->filename, tinfo->op,
+ tinfo->i+1, trav->end);
if (tinfo->i == trav->end)
return 1;
+
return 0;
}
static unsigned op_traverse(struct tdb_context *tdb,
+ int pre_fd,
+ const char *filename,
int (*traversefn)(struct tdb_context *,
tdb_traverse_func, void *),
- const struct op op[],
+ struct op op[],
unsigned int start)
{
struct traverse *trav = op[start].trav;
- struct traverse_info tinfo = { op, start, start+1 };
+ struct traverse_info tinfo = { op, filename, pre_fd, start, start+1 };
/* Trivial case. */
if (trav->hash) {
int ret = traversefn(tdb, trivial_traverse, &tinfo);
if (ret != trav->num)
- errx(1, "Line %u: short traversal %i", start+1, ret);
+ fail(filename, start+1, "short traversal %i", ret);
return trav->end;
}
if (op[tinfo.i].op == OP_TDB_TRAVERSE)
tinfo.i++;
else
- tinfo.i = run_ops(tdb, op, tinfo.i, trav->end);
+ tinfo.i = run_ops(tdb, pre_fd, filename, op,
+ tinfo.i, trav->end);
}
return trav->end;
}
+struct depend {
+ /* We can have more than one */
+ struct list_node list;
+ unsigned int file;
+ unsigned int op;
+};
+
+static void do_pre(const char *filename, int pre_fd,
+ struct op op[], unsigned int i)
+{
+ while (op[i].pre != 0) {
+ unsigned int opnum;
+
+#if DEBUG_DEPS
+ printf("%s:%u:waiting for pre\n", filename, i+1);
+#endif
+ if (read(pre_fd, &opnum, sizeof(opnum)) != sizeof(opnum))
+ errx(1, "Reading from pipe");
+
+#if DEBUG_DEPS
+ printf("%s:%u:got pre %u\n",
+ filename, i+1, opnum);
+#endif
+ /* This could be any op, not just this one. */
+ if (op[opnum].pre == 0)
+ errx(1, "Got unexpected notification for op line %u",
+ opnum + 1);
+ op[opnum].pre--;
+ }
+}
+
+static void do_post(const char *filename, const struct op op[], unsigned int i)
+{
+ struct depend *dep;
+
+ list_for_each(&op[i].post, dep, list) {
+#if DEBUG_DEPS
+ printf("%s:%u:sending %u to file %u\n", filename, i+1,
+ dep->op, dep->file);
+#endif
+ if (write(pipes[dep->file].fd[1], &dep->op, sizeof(dep->op))
+ != sizeof(dep->op))
+ err(1, "Failed to tell file %u", dep->file);
+ }
+}
+
static __attribute__((noinline))
-unsigned run_ops(struct tdb_context *tdb, const struct op op[],
- unsigned int start, unsigned int stop)
+unsigned run_ops(struct tdb_context *tdb,
+ int pre_fd,
+ const char *filename,
+ struct op op[], unsigned int start, unsigned int stop)
{
unsigned int i;
- TDB_DATA data;
for (i = start; i < stop; i++) {
+ do_pre(filename, pre_fd, op, i);
+
switch (op[i].op) {
case OP_TDB_LOCKALL:
- try(tdb_lockall(tdb), op[i]);
+ try(tdb_lockall(tdb), op[i].ret);
break;
case OP_TDB_LOCKALL_MARK:
- try(tdb_lockall_mark(tdb), op[i]);
+ try(tdb_lockall_mark(tdb), op[i].ret);
break;
case OP_TDB_LOCKALL_UNMARK:
- try(tdb_lockall_unmark(tdb), op[i]);
+ try(tdb_lockall_unmark(tdb), op[i].ret);
break;
case OP_TDB_LOCKALL_NONBLOCK:
unreliable(tdb_lockall_nonblock(tdb), op[i].ret,
tdb_lockall(tdb), tdb_unlockall(tdb));
break;
case OP_TDB_UNLOCKALL:
- try(tdb_unlockall(tdb), op[i]);
+ try(tdb_unlockall(tdb), op[i].ret);
break;
case OP_TDB_LOCKALL_READ:
- try(tdb_lockall_read(tdb), op[i]);
+ try(tdb_lockall_read(tdb), op[i].ret);
break;
case OP_TDB_LOCKALL_READ_NONBLOCK:
unreliable(tdb_lockall_read_nonblock(tdb), op[i].ret,
tdb_unlockall_read(tdb));
break;
case OP_TDB_UNLOCKALL_READ:
- try(tdb_unlockall_read(tdb), op[i]);
+ try(tdb_unlockall_read(tdb), op[i].ret);
break;
case OP_TDB_CHAINLOCK:
- try(tdb_chainlock(tdb, op[i].key), op[i]);
+ try(tdb_chainlock(tdb, op[i].key), op[i].ret);
break;
case OP_TDB_CHAINLOCK_NONBLOCK:
unreliable(tdb_chainlock_nonblock(tdb, op[i].key),
tdb_chainunlock(tdb, op[i].key));
break;
case OP_TDB_CHAINLOCK_MARK:
- try(tdb_chainlock_mark(tdb, op[i].key), op[i]);
+ try(tdb_chainlock_mark(tdb, op[i].key), op[i].ret);
break;
case OP_TDB_CHAINLOCK_UNMARK:
- try(tdb_chainlock_unmark(tdb, op[i].key), op[i]);
+ try(tdb_chainlock_unmark(tdb, op[i].key), op[i].ret);
break;
case OP_TDB_CHAINUNLOCK:
- try(tdb_chainunlock(tdb, op[i].key), op[i]);
+ try(tdb_chainunlock(tdb, op[i].key), op[i].ret);
break;
case OP_TDB_CHAINLOCK_READ:
- try(tdb_chainlock_read(tdb, op[i].key), op[i]);
+ try(tdb_chainlock_read(tdb, op[i].key), op[i].ret);
break;
case OP_TDB_CHAINUNLOCK_READ:
- try(tdb_chainunlock_read(tdb, op[i].key), op[i]);
+ try(tdb_chainunlock_read(tdb, op[i].key), op[i].ret);
break;
case OP_TDB_INCREMENT_SEQNUM_NONBLOCK:
tdb_increment_seqnum_nonblock(tdb);
break;
case OP_TDB_PARSE_RECORD:
- try(tdb_parse_record(tdb, op[i].key, get_len, NULL), op[i]);
+ try(tdb_parse_record(tdb, op[i].key, get_len, NULL),
+ op[i].ret);
break;
case OP_TDB_EXISTS:
- try(tdb_exists(tdb, op[i].key), op[i]);
+ try(tdb_exists(tdb, op[i].key), op[i].ret);
break;
case OP_TDB_STORE:
- try(tdb_store(tdb, op[i].key, op[i].data, op[i].flag), op[i]);
+ try(tdb_store(tdb, op[i].key, op[i].data, op[i].flag),
+ op[i].ret < 0 ? op[i].ret : 0);
break;
case OP_TDB_APPEND:
- try(tdb_append(tdb, op[i].key, op[i].data), op[i]);
+ try(tdb_append(tdb, op[i].key, op[i].data),
+ op[i].ret < 0 ? op[i].ret : 0);
break;
case OP_TDB_GET_SEQNUM:
- try(tdb_get_seqnum(tdb), op[i]);
+ try(tdb_get_seqnum(tdb), op[i].ret);
break;
case OP_TDB_WIPE_ALL:
- try(tdb_wipe_all(tdb), op[i]);
+ try(tdb_wipe_all(tdb), op[i].ret);
break;
case OP_TDB_TRANSACTION_START:
- try(tdb_transaction_start(tdb), op[i]);
+ try(tdb_transaction_start(tdb), op[i].ret);
break;
case OP_TDB_TRANSACTION_CANCEL:
- try(tdb_transaction_cancel(tdb), op[i]);
+ try(tdb_transaction_cancel(tdb), op[i].ret);
break;
case OP_TDB_TRANSACTION_COMMIT:
- try(tdb_transaction_commit(tdb), op[i]);
+ try(tdb_transaction_commit(tdb), op[i].ret);
break;
case OP_TDB_TRAVERSE_READ_START:
- i = op_traverse(tdb, tdb_traverse_read, op, i);
+ i = op_traverse(tdb, pre_fd, filename,
+ tdb_traverse_read, op, i);
break;
case OP_TDB_TRAVERSE_START:
- i = op_traverse(tdb, tdb_traverse, op, i);
+ i = op_traverse(tdb, pre_fd, filename,
+ tdb_traverse, op, i);
break;
case OP_TDB_TRAVERSE:
/* Terminate: we're in a traverse, and we've
* done our ops. */
return i;
case OP_TDB_TRAVERSE_END:
- errx(1, "Line %u: unepxected end traverse\n", i+1);
+ fail(filename, i+1, "unepxected end traverse");
+ /* FIXME: These must be treated like traverse. */
case OP_TDB_FIRSTKEY:
- data = tdb_firstkey(tdb);
- if (data.dsize != op[i].data.dsize
- || memcmp(data.dptr, op[i].data.dptr, data.dsize))
- errx(1, "Line %u: bad firstkey", i+1);
+ if (!key_eq(tdb_firstkey(tdb), op[i].data))
+ fail(filename, i+1, "bad firstkey");
break;
case OP_TDB_NEXTKEY:
- data = tdb_nextkey(tdb, op[i].key);
- if (data.dsize != op[i].data.dsize
- || memcmp(data.dptr, op[i].data.dptr, data.dsize))
- errx(1, "Line %u: bad nextkey", i+1);
+ if (!key_eq(tdb_nextkey(tdb, op[i].key), op[i].data))
+ fail(filename, i+1, "bad nextkey");
break;
- case OP_TDB_FETCH:
- data = tdb_fetch(tdb, op[i].key);
- if (data.dsize != op[i].data.dsize
- || memcmp(data.dptr, op[i].data.dptr, data.dsize))
- errx(1, "Line %u: bad fetch", i+1);
+ case OP_TDB_FETCH: {
+ TDB_DATA f = tdb_fetch(tdb, op[i].key);
+ if (!key_eq(f, op[i].data))
+ fail(filename, i+1, "bad fetch %u", f.dsize);
break;
+ }
case OP_TDB_DELETE:
- try(tdb_delete(tdb, op[i].key), op[i]);
- break;
- case OP_TDB_CLOSE:
- errx(1, "Line %u: unexpected close", i+1);
+ try(tdb_delete(tdb, op[i].key), op[i].ret);
break;
}
+ do_post(filename, op, i);
}
return i;
}
-int main(int argc, char *argv[])
+static struct op *load_tracefile(const char *filename, unsigned int *num,
+ unsigned int *hashsize,
+ unsigned int *tdb_flags,
+ unsigned int *open_flags)
{
- const char *file;
- char **lines;
unsigned int i;
- struct tdb_context *tdb = NULL;
struct op *op = talloc_array(NULL, struct op, 1);
- struct timeval start, end;
-
- if (argc != 3)
- errx(1, "Usage: %s <tracefile> <tdbfile>", argv[0]);
+ char **words;
+ char **lines;
+ char *file;
- file = grab_file(NULL, argv[1], NULL);
+ file = grab_file(NULL, filename, NULL);
if (!file)
- err(1, "Reading %s", argv[1]);
+ err(1, "Reading %s", filename);
lines = strsplit(file, file, "\n", NULL);
+ if (!lines[0])
+ errx(1, "%s is empty", filename);
+
+ words = strsplit(lines, lines[0], " ", NULL);
+ if (!streq(words[1], "tdb_open"))
+ fail(filename, 1, "does not start with tdb_open");
+
+ *hashsize = atoi(words[2]);
+ *tdb_flags = strtoul(words[3], NULL, 0);
+ *open_flags = strtoul(words[4], NULL, 0);
+
+ for (i = 1; lines[i]; i++) {
+ const struct op_table *opt;
+
+ words = strsplit(lines, lines[i], " ", NULL);
+ if (!words[0] || !words[1])
+ fail(filename, i+1, "Expected serial 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,
+ "lines after tdb_close");
+ *num = i;
+ talloc_free(lines);
+ return op;
+ }
+ fail(filename, i+1, "Unknown operation '%s'", words[1]);
+ }
+
+ add_op(filename, &op, i, atoi(words[0]), opt->type);
+ opt->enhance_op(filename, op, i, words);
+ }
+
+ fprintf(stderr, "%s:%u:last operation is not tdb_close: incomplete?",
+ filename, i);
+ talloc_free(lines);
+ *num = i - 1;
+ return op;
+}
+
+/* We remember all the keys we've ever seen, and who has them. */
+struct key_user {
+ unsigned int file;
+ unsigned int op_num;
+};
+
+struct keyinfo {
+ TDB_DATA key;
+ unsigned int num_users;
+ struct key_user *user;
+};
+
+static bool changes_db(const struct op *op)
+{
+ if (op->ret != 0)
+ return false;
+
+ return op->op == OP_TDB_STORE
+ || op->op == OP_TDB_APPEND
+ || op->op == OP_TDB_WIPE_ALL
+ || op->op == OP_TDB_TRANSACTION_COMMIT
+ || op->op == OP_TDB_DELETE;
+}
+
+static struct keyinfo *hash_ops(struct op *op[], unsigned int num_ops[],
+ unsigned int num)
+{
+ unsigned int i, j, h;
+ struct keyinfo *hash;
+
+ /* Gcc nexted function extension. How cool is this? */
+ int compare_user_serial(const void *_a, const void *_b)
+ {
+ const struct key_user *a = _a, *b = _b;
+ int ret = op[a->file][a->op_num].serial
+ - op[b->file][b->op_num].serial;
+
+ /* Fetches don't inc serial, so we put changes first. */
+ if (ret == 0) {
+ if (changes_db(&op[a->file][a->op_num])
+ && !changes_db(&op[b->file][b->op_num]))
+ return -1;
+ if (changes_db(&op[b->file][b->op_num])
+ && !changes_db(&op[a->file][a->op_num]))
+ return 1;
+ }
+ return ret;
+ }
+
+ hash = talloc_zero_array(op[0], struct keyinfo, total_keys*2);
+ for (i = 0; i < num; i++) {
+ for (j = 1; j < num_ops[i]; j++) {
+ /* We can't do this on allocation, due to realloc. */
+ list_head_init(&op[i][j].post);
+
+ if (!op[i][j].key.dptr)
+ continue;
- for (i = 0; lines[i]; i++) {
- char **words = strsplit(lines, lines[i], " ", NULL);
- if (!tdb && !streq(words[0], "tdb_open"))
- errx(1, "Line %u is not tdb_open", i+1);
-
- if (streq(words[0], "tdb_open")) {
- if (tdb)
- errx(1, "Line %u: tdb_open again?", i+1);
- tdb = tdb_open_ex(argv[2], atoi(words[2]),
- strtoul(words[3], NULL, 0),
- strtoul(words[4], NULL, 0), 0600,
+ /* We don't wait for traverse keys */
+ /* FIXME: We should, for trivial traversals. */
+ if (op[i][j].op == OP_TDB_TRAVERSE)
+ continue;
+
+ h = hash_key(&op[i][j].key) % (total_keys * 2);
+ while (!key_eq(hash[h].key, op[i][j].key)) {
+ if (!hash[h].key.dptr) {
+ hash[h].key = op[i][j].key;
+ break;
+ }
+ h = (h + 1) % (total_keys * 2);
+ }
+ /* Might as well save some memory if we can. */
+ if (op[i][j].key.dptr != hash[h].key.dptr) {
+ 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 key_user,
+ hash[h].num_users+1);
+ hash[h].user[hash[h].num_users].op_num = j;
+ hash[h].user[hash[h].num_users].file = i;
+ hash[h].num_users++;
+ }
+ }
+
+ /* Now sort into seqnum order. */
+ for (h = 0; h < total_keys * 2; h++)
+ qsort(hash[h].user, hash[h].num_users, sizeof(hash[h].user[0]),
+ compare_user_serial);
+
+ return hash;
+}
+
+static void add_dependency(void *ctx,
+ struct op *op[],
+ unsigned int needs_file,
+ unsigned int needs_opnum,
+ unsigned int satisfies_file,
+ unsigned int satisfies_opnum)
+{
+ struct depend *post;
+
+ post = talloc(ctx, struct depend);
+ post->file = needs_file;
+ post->op = needs_opnum;
+ list_add(&op[satisfies_file][satisfies_opnum].post, &post->list);
+
+ op[needs_file][needs_opnum].pre++;
+}
+
+static void derive_dependencies(char *filename[],
+ struct op *op[], unsigned int num_ops[],
+ unsigned int num)
+{
+ struct keyinfo *hash;
+ unsigned int i;
+
+ /* Create hash table for faster key lookup. */
+ hash = hash_ops(op, num_ops, num);
+
+ /* We make the naive assumption that two ops on the same key
+ * have to be ordered; it's overkill. */
+ for (i = 0; i < total_keys * 2; i++) {
+ unsigned int j;
+
+ for (j = 1; j < hash[i].num_users; j++) {
+ /* We don't depend on ourselves. */
+ if (hash[i].user[j].file == hash[i].user[j-1].file)
+ continue;
+#if DEBUG_DEPS
+ printf("%s:%u: depends on %s:%u\n",
+ filename[hash[i].user[j].file],
+ hash[i].user[j].op_num+1,
+ filename[hash[i].user[j-1].file],
+ hash[i].user[j-1].op_num+1);
+#endif
+ add_dependency(hash, op,
+ hash[i].user[j].file,
+ hash[i].user[j].op_num,
+ hash[i].user[j-1].file,
+ hash[i].user[j-1].op_num);
+ }
+ }
+}
+
+int main(int argc, char *argv[])
+{
+ struct timeval start, end;
+ unsigned int i, num_ops[argc], hashsize[argc], tdb_flags[argc], open_flags[argc];
+ struct op *op[argc];
+ int fds[2];
+ char c;
+
+ if (argc < 3)
+ errx(1, "Usage: %s <tdbfile> <tracefile>...", argv[0]);
+
+ pipes = talloc_array(NULL, struct pipe, argc - 2);
+ for (i = 0; i < argc - 2; 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");
+ }
+
+ derive_dependencies(argv+2, op, num_ops, i);
+
+ /* 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],
+ open_flags[0], 0600,
+ NULL, hash_key);
+ run_ops(tdb, pipes[0].fd[0], argv[2],
+ op[0], 1, num_ops[0]);
+ exit(0);
+ }
+
+ if (pipe(fds) != 0)
+ err(1, "creating pipe");
+
+ for (i = 0; i < argc - 2; i++) {
+ struct tdb_context *tdb;
+
+ switch (fork()) {
+ case -1:
+ err(1, "fork failed");
+ case 0:
+ close(fds[1]);
+ tdb = tdb_open_ex(argv[1], hashsize[i], tdb_flags[i],
+ open_flags[i], 0600,
NULL, hash_key);
if (!tdb)
- err(1, "Opening tdb %s", argv[2]);
- } else if (streq(words[0], "tdb_lockall")) {
- add_op(&op, i, OP_TDB_LOCKALL, NULL, NULL, 0);
- } else if (streq(words[0], "tdb_lockall_mark")) {
- add_op(&op, i, OP_TDB_LOCKALL_MARK, NULL, NULL, 0);
- } else if (streq(words[0], "tdb_lockall_unmark")) {
- add_op(&op, i, OP_TDB_LOCKALL_UNMARK, NULL, NULL, 0);
- } else if (streq(words[0], "tdb_lockall_nonblock")) {
- add_op(&op, i, OP_TDB_LOCKALL_NONBLOCK, NULL, NULL,
- atoi(words[1]));
- } else if (streq(words[0], "tdb_unlockall")) {
- add_op(&op, i, OP_TDB_UNLOCKALL, NULL, NULL, 0);
- } else if (streq(words[0], "tdb_lockall_read")) {
- add_op(&op, i, OP_TDB_LOCKALL_READ, NULL, NULL, 0);
- } else if (streq(words[0], "tdb_lockall_read_nonblock")) {
- add_op(&op, i, OP_TDB_LOCKALL_READ_NONBLOCK, NULL, NULL,
- atoi(words[1]));
- } else if (streq(words[0], "tdb_unlockall_read\n")) {
- add_op(&op, i, OP_TDB_UNLOCKALL_READ, NULL, NULL, 0);
- } else if (streq(words[0], "tdb_chainlock")) {
- add_op(&op, i, OP_TDB_CHAINLOCK, words[1], NULL, 0);
- } else if (streq(words[0], "tdb_chainlock_nonblock")) {
- add_op(&op, i, OP_TDB_CHAINLOCK_NONBLOCK,
- words[1], NULL, atoi(words[3]));
- } else if (streq(words[0], "tdb_chainlock_mark")) {
- add_op(&op, i, OP_TDB_CHAINLOCK_MARK, words[1], NULL,
- 0);
- } else if (streq(words[0], "tdb_chainlock_unmark")) {
- add_op(&op, i, OP_TDB_CHAINLOCK_UNMARK, words[1], NULL,
- 0);
- } else if (streq(words[0], "tdb_chainunlock")) {
- add_op(&op, i, OP_TDB_CHAINUNLOCK, words[1], NULL, 0);
- } else if (streq(words[0], "tdb_chainlock_read")) {
- add_op(&op, i, OP_TDB_CHAINLOCK_READ, words[1],
- NULL, 0);
- } else if (streq(words[0], "tdb_chainunlock_read")) {
- add_op(&op, i, OP_TDB_CHAINUNLOCK_READ, words[1],
- NULL, 0);
- } else if (streq(words[0], "tdb_close")) {
- add_op(&op, i, OP_TDB_CLOSE, NULL, NULL, 0);
- } else if (streq(words[0], "tdb_increment_seqnum_nonblock")) {
- add_op(&op, i, OP_TDB_INCREMENT_SEQNUM_NONBLOCK,
- NULL, NULL, 0);
- } else if (streq(words[0], "tdb_fetch")) {
- if (streq(words[3], "ENOENT"))
- add_op(&op, i, OP_TDB_FETCH, words[1], NULL,
- -TDB_ERR_NOEXIST);
- else
- add_op(&op, i, OP_TDB_FETCH, words[1], words[3],
- 0);
- } else if (streq(words[0], "tdb_parse_record")) {
- if (streq(words[3], "ENOENT"))
- add_op(&op, i, OP_TDB_PARSE_RECORD,
- words[1], NULL, -TDB_ERR_NOEXIST);
- else
- add_op(&op, i, OP_TDB_PARSE_RECORD,
- words[1], NULL, atoi(words[3]));
- } else if (streq(words[0], "tdb_exists")) {
- add_op(&op, i, OP_TDB_EXISTS, words[1], NULL,
- atoi(words[3]));
- } else if (streq(words[0], "tdb_delete")) {
- add_op(&op, i, OP_TDB_DELETE, words[1], NULL,
- streq(words[3], "ENOENT")
- ? -TDB_ERR_NOEXIST : 0);
- } else if (streq(words[0], "tdb_store")) {
- struct op *new;
-
- if (streq(words[5], "EEXIST"))
- new = add_op(&op, i, OP_TDB_STORE, words[2],
- words[3], -TDB_ERR_EXISTS);
- else if (streq(words[5], "ENOENT"))
- new = add_op(&op, i, OP_TDB_STORE, words[2],
- words[3], -TDB_ERR_NOEXIST);
- else
- new = add_op(&op, i, OP_TDB_STORE, words[2],
- words[3], 0);
- if (streq(words[1], "insert"))
- new->flag = TDB_INSERT;
- else if (streq(words[1], "modify"))
- new->flag = TDB_MODIFY;
- else if (streq(words[1], "normal"))
- new->flag = 0;
- else
- errx(1, "Line %u: invalid tdb_store", i+1);
- } else if (streq(words[0], "tdb_append")) {
- add_op(&op, i, OP_TDB_APPEND, words[1], words[2], 0);
- } else if (streq(words[0], "tdb_get_seqnum")) {
- add_op(&op, i, OP_TDB_GET_SEQNUM, NULL, NULL,
- atoi(words[2]));
- } else if (streq(words[0], "tdb_wipe_all")) {
- add_op(&op, i, OP_TDB_WIPE_ALL, NULL, NULL, 0);
- } else if (streq(words[0], "tdb_transaction_start")) {
- add_op(&op, i, OP_TDB_TRANSACTION_START, NULL, NULL, 0);
- } else if (streq(words[0], "tdb_transaction_cancel")) {
- add_op(&op, i, OP_TDB_TRANSACTION_CANCEL, NULL, NULL,
- 0);
- } else if (streq(words[0], "tdb_transaction_commit")) {
- add_op(&op, i, OP_TDB_TRANSACTION_COMMIT, NULL, NULL,
- 0);
- } else if (streq(words[0], "tdb_traverse_read_start")) {
- add_op(&op, i, OP_TDB_TRAVERSE_READ_START, NULL, NULL,
- 0)->trav = NULL;
- } else if (streq(words[0], "tdb_traverse_start")) {
- add_op(&op, i, OP_TDB_TRAVERSE_START, NULL, NULL, 0)
- ->trav = NULL;
- } else if (streq(words[0], "tdb_traverse_end")) {
- /* = %u means traverse function terminated. */
- if (words[1] == NULL)
- add_op(&op, i, OP_TDB_TRAVERSE_END, NULL, NULL,
- 0);
- else
- add_op(&op, i, OP_TDB_TRAVERSE_END, NULL, NULL,
- atoi(words[2]));
- analyze_traverse(op, i);
- } else if (streq(words[0], "traverse")) {
- add_op(&op, i, OP_TDB_TRAVERSE, words[1], words[2], 0);
- } else if (streq(words[0], "tdb_firstkey")) {
- if (streq(words[2], "ENOENT"))
- add_op(&op, i, OP_TDB_FIRSTKEY, NULL, NULL,
- -TDB_ERR_NOEXIST);
- else
- add_op(&op, i, OP_TDB_FIRSTKEY, NULL, words[2],
- 0);
- } else if (streq(words[0], "tdb_nextkey")) {
- if (streq(words[3], "ENOENT"))
- add_op(&op, i, OP_TDB_NEXTKEY, words[1], NULL,
- -TDB_ERR_NOEXIST);
- else
- add_op(&op, i, OP_TDB_NEXTKEY,
- words[1], words[3], 0);
- } else
- errx(1, "Line %u: unknown op '%s'", i+1, words[0]);
+ err(1, "Opening tdb %s", argv[1]);
+
+ /* This catches parent exiting. */
+ if (read(fds[0], &c, 1) != 1)
+ exit(1);
+ run_ops(tdb, pipes[i].fd[0], argv[2+i],
+ op[i], 1, num_ops[i]);
+ exit(0);
+ default:
+ break;
+ }
}
- printf("Successfully input %u lines\n", i);
+ /* Let everything settle. */
+ sleep(1);
+
gettimeofday(&start, NULL);
- run_ops(tdb, op, 1, i-1);
+ /* Tell them all to go! Any write of sufficient length will do. */
+ if (write(fds[1], hashsize, i) != 1)
+ err(1, "Writing to wakeup pipe");
+
+ for (i = 0; i < argc - 2; i++) {
+ int status;
+ wait(&status);
+ if (!WIFEXITED(status))
+ errx(1, "Child died with signal");
+ if (WEXITSTATUS(status) != 0)
+ errx(1, "Child died with error code");
+ }
gettimeofday(&end, NULL);
- if (op[i-1].op != OP_TDB_CLOSE)
- warnx("Last operation is not tdb_close: incomplete?");
- tdb_close(tdb);
+
end.tv_sec -= start.tv_sec;
printf("Time replaying: %lu usec\n",
end.tv_sec * 1000000UL + (end.tv_usec - start.tv_usec));
+
exit(0);
}
projects / ccan / blobdiff