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towards a working windows build for the C extension

This commit is contained in:
Mike Dirolf 2009-07-17 12:16:33 -04:00
parent 0d8ba577ba
commit 706d06aee0
1 changed files with 113 additions and 74 deletions
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187
ext/cbson/cbson.c
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@ -48,6 +48,19 @@ static VALUE OrderedHash;
#define EXTENDED RE_OPTION_EXTENDED
#endif
/* TODO we ought to check that the malloc or asprintf was successful
* and raise an exception if not. */
#ifdef _MSC_VER
#define INT2STRING(buffer, i) \
{ \
int vslength = _scprintf("%d", i) + 1; \
*buffer = malloc(vslength); \
_snprintf(*buffer, vslength, "%d", i); \
}
#else
#define INT2STRING(buffer, i) asprintf(buffer, "%d", i);
#endif
// this sucks too.
#ifndef RREGEXP_SRC_PTR
#define RREGEXP_SRC_PTR(r) RREGEXP(r)->str
@ -114,8 +127,8 @@ static void buffer_assure_space(bson_buffer* buffer, int size) {
/* returns offset for writing */
static int buffer_save_bytes(bson_buffer* buffer, int size) {
buffer_assure_space(buffer, size);
int position = buffer->position;
buffer_assure_space(buffer, size);
buffer->position += size;
return position;
}
@ -155,10 +168,10 @@ static int write_element_allow_id(VALUE key, VALUE value, VALUE extra, int allow
}
if (check_keys == Qtrue) {
int i;
if (RSTRING_LEN(key) > 0 && RSTRING_PTR(key)[0] == '$') {
rb_raise(rb_eRuntimeError, "key must not start with '$'");
}
int i;
for (i = 0; i < RSTRING_LEN(key); i++) {
if (RSTRING_PTR(key)[i] == '.') {
rb_raise(rb_eRuntimeError, "key must not contain '.'");
@ -169,20 +182,23 @@ static int write_element_allow_id(VALUE key, VALUE value, VALUE extra, int allow
switch(TYPE(value)) {
case T_BIGNUM:
{
VALUE as_f;
int int_value;
if (rb_funcall(value, rb_intern(">"), 1, INT2NUM(2147483647)) == Qtrue ||
rb_funcall(value, rb_intern("<"), 1, INT2NUM(-2147483648)) == Qtrue) {
rb_raise(rb_eRangeError, "MongoDB can only handle 4-byte ints - try converting to a double before saving");
rb_raise(rb_eRangeError, "MongoDB can only handle 4-byte ints"
" - try converting to a double before saving");
}
write_name_and_type(buffer, key, 0x10);
VALUE as_f = rb_funcall(value, rb_intern("to_f"), 0);
int int_value = NUM2LL(as_f);
as_f = rb_funcall(value, rb_intern("to_f"), 0);
int_value = NUM2LL(as_f);
buffer_write_bytes(buffer, (char*)&int_value, 4);
break;
}
case T_FIXNUM:
{
write_name_and_type(buffer, key, 0x10);
int int_value = FIX2INT(value);
write_name_and_type(buffer, key, 0x10);
buffer_write_bytes(buffer, (char*)&int_value, 4);
break;
}
@ -200,8 +216,8 @@ static int write_element_allow_id(VALUE key, VALUE value, VALUE extra, int allow
}
case T_FLOAT:
{
write_name_and_type(buffer, key, 0x01);
double d = NUM2DBL(value);
write_name_and_type(buffer, key, 0x01);
buffer_write_bytes(buffer, (char*)&d, 8);
break;
}
@ -218,26 +234,29 @@ static int write_element_allow_id(VALUE key, VALUE value, VALUE extra, int allow
}
case T_ARRAY:
{
int start_position, length_location, items, i, obj_length;
VALUE* values;
write_name_and_type(buffer, key, 0x04);
int start_position = buffer->position;
start_position = buffer->position;
// save space for length
int length_location = buffer_save_bytes(buffer, 4);
length_location = buffer_save_bytes(buffer, 4);
int items = RARRAY_LEN(value);
VALUE* values = RARRAY_PTR(value);
int i;
items = RARRAY_LEN(value);
values = RARRAY_PTR(value);
for(i = 0; i < items; i++) {
char* name;
asprintf(&name, "%d", i);
VALUE key = rb_str_new2(name);
VALUE key;
INT2STRING(&name, i);
key = rb_str_new2(name);
write_element(key, values[i], pack_extra(buffer, check_keys));
free(name);
}
// write null byte and fill in length
buffer_write_bytes(buffer, &zero, 1);
int obj_length = buffer->position - start_position;
obj_length = buffer->position - start_position;
memcpy(buffer->buffer + length_location, &obj_length, 4);
break;
}
@ -245,24 +264,25 @@ static int write_element_allow_id(VALUE key, VALUE value, VALUE extra, int allow
{
if (strcmp(rb_class2name(RBASIC(value)->klass),
"XGen::Mongo::Driver::Code") == 0) {
int start_position, length_location, length, total_length;
write_name_and_type(buffer, key, 0x0F);
int start_position = buffer->position;
int length_location = buffer_save_bytes(buffer, 4);
start_position = buffer->position;
length_location = buffer_save_bytes(buffer, 4);
int length = RSTRING_LEN(value) + 1;
length = RSTRING_LEN(value) + 1;
buffer_write_bytes(buffer, (char*)&length, 4);
buffer_write_bytes(buffer, RSTRING_PTR(value), length - 1);
buffer_write_bytes(buffer, &zero, 1);
write_doc(buffer, rb_funcall(value, rb_intern("scope"), 0), Qfalse);
int total_length = buffer->position - start_position;
total_length = buffer->position - start_position;
memcpy(buffer->buffer + length_location, &total_length, 4);
break;
} else {
write_name_and_type(buffer, key, 0x02);
int length = RSTRING_LEN(value) + 1;
write_name_and_type(buffer, key, 0x02);
buffer_write_bytes(buffer, (char*)&length, 4);
buffer_write_bytes(buffer, RSTRING_PTR(value), length - 1);
buffer_write_bytes(buffer, &zero, 1);
@ -271,9 +291,9 @@ static int write_element_allow_id(VALUE key, VALUE value, VALUE extra, int allow
}
case T_SYMBOL:
{
write_name_and_type(buffer, key, 0x0E);
const char* str_value = rb_id2name(SYM2ID(value));
int length = strlen(str_value) + 1;
write_name_and_type(buffer, key, 0x0E);
buffer_write_bytes(buffer, (char*)&length, 4);
buffer_write_bytes(buffer, str_value, length);
break;
@ -284,11 +304,11 @@ static int write_element_allow_id(VALUE key, VALUE value, VALUE extra, int allow
const char* cls = rb_class2name(RBASIC(value)->klass);
if (strcmp(cls, "XGen::Mongo::Driver::Binary") == 0 ||
strcmp(cls, "ByteBuffer") == 0) {
write_name_and_type(buffer, key, 0x05);
const char subtype = strcmp(cls, "ByteBuffer") ?
(const char)FIX2INT(rb_funcall(value, rb_intern("subtype"), 0)) : 2;
VALUE string_data = rb_funcall(value, rb_intern("to_s"), 0);
int length = RSTRING_LEN(string_data);
write_name_and_type(buffer, key, 0x05);
if (subtype == 2) {
const int other_length = length + 4;
buffer_write_bytes(buffer, (const char*)&other_length, 4);
@ -302,9 +322,9 @@ static int write_element_allow_id(VALUE key, VALUE value, VALUE extra, int allow
break;
}
if (strcmp(cls, "XGen::Mongo::Driver::ObjectID") == 0) {
write_name_and_type(buffer, key, 0x07);
VALUE as_array = rb_funcall(value, rb_intern("to_a"), 0);
int i;
write_name_and_type(buffer, key, 0x07);
for (i = 0; i < 12; i++) {
char byte = (char)FIX2INT(RARRAY_PTR(as_array)[i]);
buffer_write_bytes(buffer, &byte, 1);
@ -312,21 +332,23 @@ static int write_element_allow_id(VALUE key, VALUE value, VALUE extra, int allow
break;
}
if (strcmp(cls, "XGen::Mongo::Driver::DBRef") == 0) {
int start_position, length_location, obj_length;
VALUE ns, oid;
write_name_and_type(buffer, key, 0x03);
int start_position = buffer->position;
start_position = buffer->position;
// save space for length
int length_location = buffer_save_bytes(buffer, 4);
length_location = buffer_save_bytes(buffer, 4);
VALUE ns = rb_funcall(value, rb_intern("namespace"), 0);
ns = rb_funcall(value, rb_intern("namespace"), 0);
write_element(rb_str_new2("$ref"), ns, pack_extra(buffer, Qfalse));
VALUE oid = rb_funcall(value, rb_intern("object_id"), 0);
oid = rb_funcall(value, rb_intern("object_id"), 0);
write_element(rb_str_new2("$id"), oid, pack_extra(buffer, Qfalse));
// write null byte and fill in length
buffer_write_bytes(buffer, &zero, 1);
int obj_length = buffer->position - start_position;
obj_length = buffer->position - start_position;
memcpy(buffer->buffer + length_location, &obj_length, 4);
break;
}
@ -340,23 +362,25 @@ static int write_element_allow_id(VALUE key, VALUE value, VALUE extra, int allow
// TODO again, is this really the only way to do this?
const char* cls = rb_class2name(RBASIC(value)->klass);
if (strcmp(cls, "Time") == 0) {
write_name_and_type(buffer, key, 0x09);
double t = NUM2DBL(rb_funcall(value, rb_intern("to_f"), 0));
long long time_since_epoch = (long long)round(t * 1000);
write_name_and_type(buffer, key, 0x09);
buffer_write_bytes(buffer, (const char*)&time_since_epoch, 8);
break;
}
}
case T_REGEXP:
{
write_name_and_type(buffer, key, 0x0B);
int length = RREGEXP_SRC_LEN(value);
char* pattern = (char*)RREGEXP_SRC_PTR(value);
long flags = RREGEXP(value)->ptr->options;
VALUE has_extra;
write_name_and_type(buffer, key, 0x0B);
buffer_write_bytes(buffer, pattern, length);
buffer_write_bytes(buffer, &zero, 1);
long flags = RREGEXP(value)->ptr->options;
if (flags & IGNORECASE) {
char ignorecase = 'i';
buffer_write_bytes(buffer, &ignorecase, 1);
@ -370,7 +394,7 @@ static int write_element_allow_id(VALUE key, VALUE value, VALUE extra, int allow
buffer_write_bytes(buffer, &extended, 1);
}
VALUE has_extra = rb_funcall(value, rb_intern("respond_to?"), 1, rb_str_new2("extra_options_str"));
has_extra = rb_funcall(value, rb_intern("respond_to?"), 1, rb_str_new2("extra_options_str"));
if (TYPE(has_extra) == T_TRUE) {
VALUE extra = rb_funcall(value, rb_intern("extra_options_str"), 0);
int old_position = buffer->position;
@ -397,6 +421,7 @@ static int write_element(VALUE key, VALUE value, VALUE extra) {
static void write_doc(bson_buffer* buffer, VALUE hash, VALUE check_keys) {
int start_position = buffer->position;
int length_location = buffer_save_bytes(buffer, 4);
int length;
VALUE key = rb_str_new2("_id");
if (rb_funcall(hash, rb_intern("has_key?"), 1, key) == Qtrue) {
@ -425,17 +450,18 @@ static void write_doc(bson_buffer* buffer, VALUE hash, VALUE check_keys) {
// write null byte and fill in length
buffer_write_bytes(buffer, &zero, 1);
int length = buffer->position - start_position;
length = buffer->position - start_position;
memcpy(buffer->buffer + length_location, &length, 4);
}
static VALUE method_serialize(VALUE self, VALUE doc, VALUE check_keys) {
VALUE result;
bson_buffer* buffer = buffer_new();
assert(buffer);
write_doc(buffer, doc, check_keys);
VALUE result = rb_str_new(buffer->buffer, buffer->position);
result = rb_str_new(buffer->buffer, buffer->position);
buffer_free(buffer);
return result;
}
@ -454,8 +480,9 @@ static VALUE get_value(const char* buffer, int* position, int type) {
case 2:
case 13:
{
int value_length;
*position += 4;
int value_length = strlen(buffer + *position);
value_length = strlen(buffer + *position);
value = rb_str_new(buffer+ *position, value_length);
*position += value_length + 1;
break;
@ -468,9 +495,11 @@ static VALUE get_value(const char* buffer, int* position, int type) {
int offset = *position + 14;
VALUE argv[2];
int collection_length = strlen(buffer + offset);
char id_type;
argv[0] = rb_str_new(buffer + offset, collection_length);
offset += collection_length + 1;
char id_type = buffer[offset];
id_type = buffer[offset];
offset += 5;
argv[1] = get_value(buffer, &offset, (int)id_type);
value = rb_class_new_instance(2, argv, DBRef);
@ -482,17 +511,19 @@ static VALUE get_value(const char* buffer, int* position, int type) {
}
case 4:
{
int size;
int size, end;
memcpy(&size, buffer + *position, 4);
int end = *position + size - 1;
end = *position + size - 1;
*position += 4;
value = rb_ary_new();
while (*position < end) {
int type = (int)buffer[(*position)++];
int key_size = strlen(buffer + *position);
VALUE to_append;
*position += key_size + 1; // just skip the key, they're in order.
VALUE to_append = get_value(buffer, position, type);
to_append = get_value(buffer, position, type);
rb_ary_push(value, to_append);
}
(*position)++;
@ -500,17 +531,20 @@ static VALUE get_value(const char* buffer, int* position, int type) {
}
case 5:
{
int length;
int length, subtype;
VALUE data, st;
VALUE argv[2];
memcpy(&length, buffer + *position, 4);
int subtype = (unsigned char)buffer[*position + 4];
VALUE data;
subtype = (unsigned char)buffer[*position + 4];
data;
if (subtype == 2) {
data = rb_str_new(buffer + *position + 9, length - 4);
} else {
data = rb_str_new(buffer + *position + 5, length);
}
VALUE st = INT2FIX(subtype);
VALUE argv[2] = {data, st};
st = INT2FIX(subtype);
argv[0] = data;
argv[1] = st;
value = rb_class_new_instance(2, argv, Binary);
*position += length + 5;
break;
@ -536,9 +570,10 @@ static VALUE get_value(const char* buffer, int* position, int type) {
case 9:
{
long long millis;
VALUE seconds, microseconds;
memcpy(&millis, buffer + *position, 8);
VALUE seconds = INT2NUM(millis / 1000);
VALUE microseconds = INT2NUM((millis % 1000) * 1000);
seconds = INT2NUM(millis / 1000);
microseconds = INT2NUM((millis % 1000) * 1000);
value = rb_funcall(Time, rb_intern("at"), 2, seconds, microseconds);
value = rb_funcall(value, rb_intern("utc"), 0);
@ -554,13 +589,12 @@ static VALUE get_value(const char* buffer, int* position, int type) {
{
int pattern_length = strlen(buffer + *position);
VALUE pattern = rb_str_new(buffer + *position, pattern_length);
int flags_length, flags = 0, i = 0;
char extra[10];
VALUE argv[3];
*position += pattern_length + 1;
int flags_length = strlen(buffer + *position);
int i = 0;
int flags = 0;
char extra[10];
flags_length = strlen(buffer + *position);
extra[0] = 0;
for (i = 0; i < flags_length; i++) {
char flag = buffer[*position + i];
@ -577,28 +611,29 @@ static VALUE get_value(const char* buffer, int* position, int type) {
strncat(extra, &flag, 1);
}
}
VALUE argv[3] = {
pattern,
INT2FIX(flags),
rb_str_new2(extra)
};
argv[0] = pattern;
argv[1] = INT2FIX(flags);
argv[2] = rb_str_new2(extra);
value = rb_class_new_instance(3, argv, RegexpOfHolding);
*position += flags_length + 1;
break;
}
case 12:
{
int collection_length;
VALUE collection, str, oid, id, argv[2];
*position += 4;
int collection_length = strlen(buffer + *position);
VALUE collection = rb_str_new(buffer + *position, collection_length);
collection_length = strlen(buffer + *position);
collection = rb_str_new(buffer + *position, collection_length);
*position += collection_length + 1;
VALUE str = rb_str_new(buffer + *position, 12);
VALUE oid = rb_funcall(str, rb_intern("unpack"), 1, rb_str_new2("C*"));
VALUE id = rb_class_new_instance(1, &oid, ObjectID);
str = rb_str_new(buffer + *position, 12);
oid = rb_funcall(str, rb_intern("unpack"), 1, rb_str_new2("C*"));
id = rb_class_new_instance(1, &oid, ObjectID);
*position += 12;
VALUE argv[2] = {collection, id};
argv[0] = collection;
argv[1] = id;
value = rb_class_new_instance(2, argv, DBRef);
break;
}
@ -612,17 +647,19 @@ static VALUE get_value(const char* buffer, int* position, int type) {
}
case 15:
{
int code_length, scope_size;
VALUE code, scope, argv[2];
*position += 8;
int code_length = strlen(buffer + *position);
VALUE code = rb_str_new(buffer + *position, code_length);
code_length = strlen(buffer + *position);
code = rb_str_new(buffer + *position, code_length);
*position += code_length + 1;
int scope_size;
memcpy(&scope_size, buffer + *position, 4);
VALUE scope = elements_to_hash(buffer + *position + 4, scope_size - 5);
scope = elements_to_hash(buffer + *position + 4, scope_size - 5);
*position += scope_size;
VALUE argv[2] = {code, scope};
argv[0] = code;
argv[1] = scope;
value = rb_class_new_instance(2, argv, Code);
break;
}
@ -660,8 +697,9 @@ static VALUE elements_to_hash(const char* buffer, int max) {
int type = (int)buffer[position++];
int name_length = strlen(buffer + position);
VALUE name = rb_str_new(buffer + position, name_length);
VALUE value;
position += name_length + 1;
VALUE value = get_value(buffer, &position, type);
value = get_value(buffer, &position, type);
rb_funcall(hash, rb_intern("[]="), 2, name, value);
}
return hash;
@ -679,12 +717,13 @@ static VALUE method_deserialize(VALUE self, VALUE bson) {
}
void Init_cbson() {
VALUE driver, CBson;
Time = rb_const_get(rb_cObject, rb_intern("Time"));
VALUE driver = rb_const_get(rb_const_get(rb_const_get(rb_cObject,
rb_intern("XGen")),
rb_intern("Mongo")),
rb_intern("Driver"));
driver = rb_const_get(rb_const_get(rb_const_get(rb_cObject,
rb_intern("XGen")),
rb_intern("Mongo")),
rb_intern("Driver"));
rb_require("mongo/types/binary");
Binary = rb_const_get(driver, rb_intern("Binary"));
rb_require("mongo/types/undefined");
@ -700,7 +739,7 @@ void Init_cbson() {
rb_require("mongo/util/ordered_hash");
OrderedHash = rb_const_get(rb_cObject, rb_intern("OrderedHash"));
VALUE CBson = rb_define_module("CBson");
CBson = rb_define_module("CBson");
rb_define_module_function(CBson, "serialize", method_serialize, 2);
rb_define_module_function(CBson, "deserialize", method_deserialize, 1);
}