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#include <sqlite3_ruby.h>
VALUE mSqlite3;
VALUE cSqlite3Blob;
int bignum_to_int64(VALUE value, sqlite3_int64 *result)
{
#ifdef HAVE_RB_INTEGER_PACK
const int nails = 0;
int t = rb_integer_pack(value, result, 1, sizeof(*result), nails,
INTEGER_PACK_NATIVE_BYTE_ORDER|
INTEGER_PACK_2COMP);
switch (t) {
case -2: case +2:
return 0;
case +1:
if (!nails) {
if (*result < 0) return 0;
}
break;
case -1:
if (!nails) {
if (*result >= 0) return 0;
}
else {
*result += INT64_MIN;
}
break;
}
return 1;
#else
# ifndef RBIGNUM_LEN
# define RBIGNUM_LEN(x) RBIGNUM(x)->len
# endif
const long len = RBIGNUM_LEN(value);
if (len == 0) {
*result = 0;
return 1;
}
if (len > 63 / (SIZEOF_BDIGITS * CHAR_BIT) + 1) return 0;
if (len == 63 / (SIZEOF_BDIGITS * CHAR_BIT) + 1) {
const BDIGIT *digits = RBIGNUM_DIGITS(value);
BDIGIT blast = digits[len-1];
BDIGIT bmax = (BDIGIT)1UL << (63 % (CHAR_BIT * SIZEOF_BDIGITS));
if (blast > bmax) return 0;
if (blast == bmax) {
if (RBIGNUM_POSITIVE_P(value)) {
return 0;
}
else {
long i = len-1;
while (i) {
if (digits[--i]) return 0;
}
}
}
}
*result = (sqlite3_int64)NUM2LL(value);
return 1;
#endif
}
static VALUE libversion(VALUE UNUSED(klass))
{
return INT2NUM(sqlite3_libversion_number());
}
static VALUE using_sqlcipher(VALUE UNUSED(klass))
{
#ifdef USING_SQLCIPHER
return Qtrue;
#else
return Qfalse;
#endif
}
/* Returns the compile time setting of the SQLITE_THREADSAFE flag.
* See: https://www.sqlite.org/c3ref/threadsafe.html
*/
static VALUE threadsafe_p(VALUE UNUSED(klass))
{
return INT2NUM(sqlite3_threadsafe());
}
void init_sqlite3_constants(void)
{
VALUE mSqlite3Constants;
VALUE mSqlite3Open;
mSqlite3Constants = rb_define_module_under(mSqlite3, "Constants");
/* sqlite3_open_v2 flags for Database::new */
mSqlite3Open = rb_define_module_under(mSqlite3Constants, "Open");
/* symbols = IO.readlines('sqlite3.h').map { |n| /\A#define\s+(SQLITE_OPEN_\w+)\s/ =~ n && $1 }.compact
* pad = symbols.map(&:length).max - 9
* symbols.each { |s| printf %Q{ rb_define_const(mSqlite3Open, %-#{pad}s INT2FIX(#{s}));\n}, '"' + s[12..-1] + '",' }
*/
rb_define_const(mSqlite3Open, "READONLY", INT2FIX(SQLITE_OPEN_READONLY));
rb_define_const(mSqlite3Open, "READWRITE", INT2FIX(SQLITE_OPEN_READWRITE));
rb_define_const(mSqlite3Open, "CREATE", INT2FIX(SQLITE_OPEN_CREATE));
rb_define_const(mSqlite3Open, "DELETEONCLOSE", INT2FIX(SQLITE_OPEN_DELETEONCLOSE));
rb_define_const(mSqlite3Open, "EXCLUSIVE", INT2FIX(SQLITE_OPEN_EXCLUSIVE));
rb_define_const(mSqlite3Open, "MAIN_DB", INT2FIX(SQLITE_OPEN_MAIN_DB));
rb_define_const(mSqlite3Open, "TEMP_DB", INT2FIX(SQLITE_OPEN_TEMP_DB));
rb_define_const(mSqlite3Open, "TRANSIENT_DB", INT2FIX(SQLITE_OPEN_TRANSIENT_DB));
rb_define_const(mSqlite3Open, "MAIN_JOURNAL", INT2FIX(SQLITE_OPEN_MAIN_JOURNAL));
rb_define_const(mSqlite3Open, "TEMP_JOURNAL", INT2FIX(SQLITE_OPEN_TEMP_JOURNAL));
rb_define_const(mSqlite3Open, "SUBJOURNAL", INT2FIX(SQLITE_OPEN_SUBJOURNAL));
rb_define_const(mSqlite3Open, "MASTER_JOURNAL", INT2FIX(SQLITE_OPEN_MASTER_JOURNAL));
rb_define_const(mSqlite3Open, "NOMUTEX", INT2FIX(SQLITE_OPEN_NOMUTEX));
rb_define_const(mSqlite3Open, "FULLMUTEX", INT2FIX(SQLITE_OPEN_FULLMUTEX));
#ifdef SQLITE_OPEN_AUTOPROXY
/* SQLITE_VERSION_NUMBER>=3007002 */
rb_define_const(mSqlite3Open, "AUTOPROXY", INT2FIX(SQLITE_OPEN_AUTOPROXY));
rb_define_const(mSqlite3Open, "SHAREDCACHE", INT2FIX(SQLITE_OPEN_SHAREDCACHE));
rb_define_const(mSqlite3Open, "PRIVATECACHE", INT2FIX(SQLITE_OPEN_PRIVATECACHE));
rb_define_const(mSqlite3Open, "WAL", INT2FIX(SQLITE_OPEN_WAL));
#endif
#ifdef SQLITE_OPEN_URI
/* SQLITE_VERSION_NUMBER>=3007007 */
rb_define_const(mSqlite3Open, "URI", INT2FIX(SQLITE_OPEN_URI));
#endif
#ifdef SQLITE_OPEN_MEMORY
/* SQLITE_VERSION_NUMBER>=3007013 */
rb_define_const(mSqlite3Open, "MEMORY", INT2FIX(SQLITE_OPEN_MEMORY));
#endif
}
RUBY_FUNC_EXPORTED
void Init_sqlite3_native(void)
{
/*
* SQLite3 is a wrapper around the popular database
* sqlite[http://sqlite.org].
*
* For an example of usage, see SQLite3::Database.
*/
mSqlite3 = rb_define_module("SQLite3");
/* A class for differentiating between strings and blobs, when binding them
* into statements.
*/
cSqlite3Blob = rb_define_class_under(mSqlite3, "Blob", rb_cString);
/* Initialize the sqlite3 library */
#ifdef HAVE_SQLITE3_INITIALIZE
sqlite3_initialize();
#endif
init_sqlite3_constants();
init_sqlite3_database();
init_sqlite3_statement();
#ifdef HAVE_SQLITE3_BACKUP_INIT
init_sqlite3_backup();
#endif
rb_define_singleton_method(mSqlite3, "sqlcipher?", using_sqlcipher, 0);
rb_define_singleton_method(mSqlite3, "libversion", libversion, 0);
rb_define_singleton_method(mSqlite3, "threadsafe", threadsafe_p, 0);
rb_define_const(mSqlite3, "SQLITE_VERSION", rb_str_new2(SQLITE_VERSION));
rb_define_const(mSqlite3, "SQLITE_VERSION_NUMBER", INT2FIX(SQLITE_VERSION_NUMBER));
rb_define_const(mSqlite3, "SQLITE_LOADED_VERSION", rb_str_new2(sqlite3_libversion()));
}
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