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Add db_dump.cpp to the cxx tests

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git-svn-id: file:///svn/tokudb@1201 c7de825b-a66e-492c-adef-691d508d4ae1
This commit is contained in:
Bradley C. Kuszmaul
2007-12-18 18:20:10 +00:00
parent 32e57a7811
commit 96a0bee699
1 changed files with 82 additions and 0 deletions
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82
cxx/tests/db_dump.cpp Normal file
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#include <assert.h>
#include <db_cxx.h>
void hexdump(Dbt *d) {
unsigned char *cp = (unsigned char *) d->get_data();
int n = d->get_size();
printf(" ");
for (int i=0; i<n; i++)
printf("%2.2x", cp[i]);
printf("\n");
}
int dbdump(char *dbfile, char *dbname) {
int r;
#if USE_ENV
DbEnv env(DB_CXX_NO_EXCEPTIONS);
r = env.open(".", DB_INIT_MPOOL + DB_CREATE + DB_PRIVATE, 0777); assert(r == 0);
Db db(&env, DB_CXX_NO_EXCEPTIONS);
#else
Db db(0, DB_CXX_NO_EXCEPTIONS);
#endif
r = db.open(0, dbfile, dbname, DB_BTREE, 0, 0777);
if (r != 0) {
printf("cant open %s:%s\n", dbfile, dbname);
#if USE_ENV
r = env.close(0); assert(r == 0);
#endif
return 1;
}
Dbc *cursor;
r = db.cursor(0, &cursor, 0); assert(r == 0);
for (;;) {
Dbt key; key.set_flags(DB_DBT_MALLOC);
Dbt val; val.set_flags(DB_DBT_MALLOC);
r = cursor->get(&key, &val, DB_NEXT);
if (r != 0) break;
// printf("%.*s\n", key.get_size(), (char *)key.get_data());
hexdump(&key);
free(key.get_data());
// printf("%.*s\n", val.get_size(), (char *)val.get_data());
hexdump(&val);
free(val.get_data());
}
r = cursor->close(); assert(r == 0);
r = db.close(0); assert(r == 0);
#if USE_ENV
r = env.close(0); assert(r == 0);
#endif
return 0;
}
int usage() {
printf("db_dump [-s DBNAME] DBFILE\n");
return 1;
}
int main(int argc, char *argv[]) {
int i;
char *dbname = 0;
for (i=1; i<argc; i++) {
char *arg = argv[i];
if (0 == strcmp(arg, "-h") || 0 == strcmp(arg, "--help"))
return usage();
if (0 == strcmp(arg, "-s")) {
i++;
if (i >= argc)
return usage();
dbname = argv[i];
continue;
}
break;
}
if (i >= argc)
return usage();
return dbdump(argv[i], dbname);
}