add the timestamp log entry. addresses #1855

git-svn-id: file:///svn/toku/tokudb@13284 c7de825b-a66e-492c-adef-691d508d4ae1

newbrt/log-internal.h

@@ -117,6 +117,10 @@ static inline int toku_logsizeof_u_int32_t (u_int32_t v __attribute__((__unused_
     return 4;
 }
 
+static inline int toku_logsizeof_u_int64_t (u_int32_t v __attribute__((__unused__))) {
+    return 8;
+}
+
 static inline int toku_logsizeof_FILENUM (FILENUM v __attribute__((__unused__))) {
     return 4;
 }

newbrt/logformat.c

@@ -119,6 +119,9 @@ const struct logtype logtypes[] = {
 				{"BYTESTRING", "key", 0},
 				{"BYTESTRING", "data", 0},
 				NULLFIELD}},
+    {"timestamp", 'T', FA{{"u_int64_t", "timestamp", 0},
+                          {"BYTESTRING", "comment", 0},
+                          NULLFIELD}},
     {0,0,FA{NULLFIELD}}
 };
 

newbrt/logger.c

@@ -459,7 +459,7 @@ static int toku_fread_int32_t (FILE *f, int32_t *v, struct x1764 *checksum, u_in
     return r;
 }
 
-static int toku_fread_u_int64_t (FILE *f, u_int64_t *v, struct x1764 *checksum, u_int32_t *len) {
+int toku_fread_u_int64_t (FILE *f, u_int64_t *v, struct x1764 *checksum, u_int32_t *len) {
     u_int32_t v1,v2;
     int r;
     r=toku_fread_u_int32_t(f, &v1, checksum, len);    if (r!=0) return r;
@@ -573,7 +573,15 @@ int toku_logprint_u_int32_t (FILE *outf, FILE *inf, const char *fieldname, struc
     fprintf(outf, " %s=", fieldname);
     fprintf(outf, format ? format : "%d", v);
     return 0;
+}
 
+int toku_logprint_u_int64_t (FILE *outf, FILE *inf, const char *fieldname, struct x1764 *checksum, u_int32_t *len, const char *format) {
+    u_int64_t v;
+    int r = toku_fread_u_int64_t(inf, &v, checksum, len);
+    if (r!=0) return r;
+    fprintf(outf, " %s=", fieldname);
+    fprintf(outf, format ? format : "%"PRId64, v);
+    return 0;
 }
 
 void toku_print_BYTESTRING (FILE *outf, u_int32_t len, char *data) {

newbrt/logger.h

@@ -30,6 +30,7 @@ int toku_logger_log_fopen (TOKUTXN txn, const char * fname, FILENUM filenum);
 int toku_fread_u_int8_t (FILE *f, u_int8_t *v, struct x1764 *mm, u_int32_t *len);
 int toku_fread_u_int32_t_nocrclen (FILE *f, u_int32_t *v);
 int toku_fread_u_int32_t (FILE *f, u_int32_t *v, struct x1764 *checksum, u_int32_t *len);
+int toku_fread_u_int64_t (FILE *f, u_int64_t *v, struct x1764 *checksum, u_int32_t *len);
 int toku_fread_LSN     (FILE *f, LSN *lsn, struct x1764 *checksum, u_int32_t *len);
 int toku_fread_FILENUM (FILE *f, FILENUM *filenum, struct x1764 *checksum, u_int32_t *len);
 int toku_fread_DISKOFF (FILE *f, DISKOFF *diskoff, struct x1764 *checksum, u_int32_t *len);
@@ -43,6 +44,7 @@ int toku_logprint_LSN (FILE *outf, FILE *inf, const char *fieldname, struct x176
 int toku_logprint_TXNID (FILE *outf, FILE *inf, const char *fieldname, struct x1764 *checksum, u_int32_t *len, const char *format __attribute__((__unused__)));
 int toku_logprint_u_int8_t (FILE *outf, FILE *inf, const char *fieldname, struct x1764 *checksum, u_int32_t *len, const char *format);
 int toku_logprint_u_int32_t (FILE *outf, FILE *inf, const char *fieldname, struct x1764 *checksum, u_int32_t *len, const char *format);
+int toku_logprint_u_int64_t (FILE *outf, FILE *inf, const char *fieldname, struct x1764 *checksum, u_int32_t *len, const char *format);
 void toku_print_BYTESTRING (FILE *outf, u_int32_t len, char *data);
 int toku_logprint_BYTESTRING (FILE *outf, FILE *inf, const char *fieldname, struct x1764 *checksum, u_int32_t *len, const char *format __attribute__((__unused__)));
 int toku_logprint_FILENUM (FILE *outf, FILE *inf, const char *fieldname, struct x1764 *checksum, u_int32_t *len, const char *format);

newbrt/recover.c

@@ -348,6 +348,16 @@ static int toku_recover_backward_xbegin (struct logtype_xbegin *l, struct backwa
     abort();
 }
 
+static int toku_recover_timestamp (LSN UU(lsn), u_int64_t UU(timestamp), BYTESTRING comment) {
+    toku_free_BYTESTRING(comment);
+    return 0;
+}
+
+static int toku_recover_backward_timestamp (struct logtype_timestamp *l, struct backward_scan_state *UU(bs)) {
+    toku_free_BYTESTRING(l->comment);
+    return 0;
+}
+
 static int toku_delete_rolltmp_files (const char *log_dir) {
     struct dirent *de;
     DIR *d = opendir(log_dir);

newbrt/tests/log-test-timestamp.c

@@ -0,0 +1,54 @@
+/* -*- mode: C; c-basic-offset: 4 -*- */
+#ident "Copyright (c) 2007, 2008 Tokutek Inc.  All rights reserved."
+
+#include "test.h"
+
+#include "includes.h"
+
+static u_int64_t now(void) {
+    struct timeval tv;
+    int r = gettimeofday(&tv, NULL);
+    assert(r == 0);
+    return tv.tv_sec * 1000000ULL + tv.tv_usec;
+}
+
+#define dname __FILE__ ".dir"
+#define rmrf "rm -rf " dname "/"
+
+// log a couple of timestamp entries and verify the log by walking 
+// a cursor through the log entries
+
+int
+test_main (int argc __attribute__((__unused__)),
+	  const char *argv[] __attribute__((__unused__))) {
+    int r;
+    system(rmrf);
+    r = toku_os_mkdir(dname, S_IRWXU);    assert(r==0);
+    TOKULOGGER logger;
+    LSN lsn = ZERO_LSN;
+
+    // log a couple of timestamp log entries
+
+    r = toku_logger_create(&logger);
+    assert(r == 0);
+
+    r = toku_logger_open(dname, logger);
+    assert(r == 0);
+
+    BYTESTRING bs0 = { .data = "hello", .len = 5 };
+    r = toku_log_timestamp(logger, &lsn, 0, now(), bs0);
+    assert(r == 0);
+
+    sleep(10);
+
+    BYTESTRING bs1 = { .data = "world", .len = 5 };
+    r = toku_log_timestamp(logger, &lsn, 0, now(), bs1);
+    assert(r == 0);
+
+    r = toku_logger_close(&logger);
+    assert(r == 0);
+
+    // TODO verify the log
+
+    return 0;
+}

newbrt/wbuf.h

@@ -95,6 +95,10 @@ static void wbuf_ulonglong (struct wbuf *w, u_int64_t ull) {
     wbuf_uint(w, (u_int32_t)(ull&0xFFFFFFFF));
 }
 
+static inline void wbuf_u_int64_t(struct wbuf *w, u_int64_t ull) {
+    wbuf_ulonglong(w, ull);
+}
+
 static inline void wbuf_BYTESTRING (struct wbuf *w, BYTESTRING v) {
     wbuf_bytes(w, v.data, v.len);
 }