mirror of
https://github.com/MariaDB/server.git
synced 2025-01-22 23:04:20 +01:00
142 lines
2.8 KiB
C
142 lines
2.8 KiB
C
/* Dump the log from stdin to stdout. */
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#include <stdio.h>
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#include "brttypes.h"
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#include "log-internal.h"
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#include <sys/types.h>
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#include <ctype.h>
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#include <stdlib.h>
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#include <zlib.h>
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#include <assert.h>
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u_int32_t crc=0;
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u_int32_t actual_len=0;
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unsigned char get_char(void) {
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int v = getchar();
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assert(v!=EOF);
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unsigned char c = v;
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crc=crc32(crc, &c, 1);
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actual_len++;
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return c;
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}
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u_int32_t get_uint32 (void) {
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u_int32_t a = get_char();
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u_int32_t b = get_char();
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u_int32_t c = get_char();
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u_int32_t d = get_char();
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return (a<<24)|(b<<16)|(c<<8)|d;
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}
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u_int64_t get_uint64 (void) {
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u_int32_t hi = get_uint32();
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u_int32_t lo = get_uint32();
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return ((((long long)hi) << 32)
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lo);
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}
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void transcribe_lsn (void) {
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long long value = get_uint64();
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printf(" lsn=%lld", value);
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}
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void transcribe_txnid (void) {
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long long value = get_uint64();
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printf(" txnid=%lld", value);
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}
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void transcribe_fileid (void) {
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u_int32_t value = get_uint32();
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printf(" fileid=%d", value);
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}
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void transcribe_diskoff (void) {
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long long value = get_uint64();
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printf(" diskoff=%lld", value);
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}
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void transcribe_crc32 (void) {
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u_int32_t oldcrc=crc;
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u_int32_t l = get_uint32();
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printf(" crc=%08x", l);
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assert(l==oldcrc);
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}
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void transcribe_len (void) {
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u_int32_t l = get_uint32();
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printf(" len=%d", l);
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if (l!=actual_len) printf(" actual_len=%d", actual_len);
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assert(l==actual_len);
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}
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void transcribe_key_or_data (char *what) {
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u_int32_t l = get_uint32();
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unsigned int i;
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printf(" %s(%d):\"", what, l);
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for (i=0; i<l; i++) {
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u_int32_t c = get_char();
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if (c=='\\') printf("\\\\");
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else if (c=='\n') printf("\\n");
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else if (c==' ') printf("\\ ");
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else if (c=='"') printf("\"\"");
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else if (isprint(c)) printf("%c", c);
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else printf("\\%02x", c);
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}
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printf("\"");
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}
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int main (int argc, char *argv[]) {
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int cmd;
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int count=-1;
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int i;
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if (argc>1) {
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count = atoi(argv[1]);
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}
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for (i=0;
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i!=count && (crc=0,cmd=get_char())!=EOF;
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i++) {
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switch (cmd) {
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case LT_INSERT_WITH_NO_OVERWRITE:
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printf("INSERT_WITH_NO_OVERWRITE:");
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transcribe_lsn();
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transcribe_txnid();
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transcribe_fileid();
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transcribe_diskoff();
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transcribe_key_or_data("key");
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transcribe_key_or_data("data");
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transcribe_crc32();
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transcribe_len();
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printf("\n");
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break;
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case LT_DELETE:
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printf("DELETE:");
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transcribe_txnid();
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transcribe_diskoff();
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transcribe_key_or_data("key");
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transcribe_key_or_data("data");
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printf("\n");
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break;
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case LT_COMMIT:
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printf("COMMIT:");
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transcribe_lsn();
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transcribe_txnid();
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transcribe_crc32();
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transcribe_len();
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printf("\n");
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break;
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default:
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printf("Huh?");
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assert(0);
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}
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}
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return 0;
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}
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