godotengine/godot
1
0
Fork 0
mirror of https://github.com/godotengine/godot.git synced 2025-11-11 13:10:58 +00:00
Code Releases Wiki Activity

Make all file access 64-bit (uint64_t)

Browse Source 
This changes the types of a big number of variables.

General rules:
- Using `uint64_t` in general. We also considered `int64_t` but eventually
  settled on keeping it unsigned, which is also closer to what one would expect
  with `size_t`/`off_t`.
- We only keep `int64_t` for `seek_end` (takes a negative offset from the end)
  and for the `Variant` bindings, since `Variant::INT` is `int64_t`. This means
  we only need to guard against passing negative values in `core_bind.cpp`.
- Using `uint32_t` integers for concepts not needing such a huge range, like
  pages, blocks, etc.

In addition:
- Improve usage of integer types in some related places; namely, `DirAccess`,
  core binds.

Note:
- On Windows, `_ftelli64` reports invalid values when using 32-bit MinGW with
  version < 8.0. This was an upstream bug fixed in 8.0. It breaks support for
  big files on 32-bit Windows builds made with that toolchain. We might add a
  workaround.

Fixes #44363.
Fixes godotengine/godot-proposals#400.

Co-authored-by: Rémi Verschelde <rverschelde@gmail.com>
This commit is contained in:
Pedro J. Estébanez
2019-03-26 18:51:13 +01:00
committed by Rémi Verschelde
parent 74174676b8
commit 817ffc01e1
66 changed files with 353 additions and 364 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
core/os/file_access.cpp
View File

@@ -366,10 +366,10 @@ Vector<String> FileAccess::get_csv_line(const String &p_delim) const {
return strings;
}
int FileAccess::get_buffer(uint8_t *p_dst, int p_length) const {
uint64_t FileAccess::get_buffer(uint8_t *p_dst, uint64_t p_length) const {
ERR_FAIL_COND_V(!p_dst && p_length > 0, -1);
ERR_FAIL_COND_V(p_length < 0, -1);
int i = 0;
uint64_t i = 0;
for (i = 0; i < p_length && !eof_reached(); i++) {
p_dst[i] = get_8();
}
@@ -379,11 +379,11 @@ int FileAccess::get_buffer(uint8_t *p_dst, int p_length) const {
String FileAccess::get_as_utf8_string() const {
PoolVector<uint8_t> sourcef;
int len = get_len();
uint64_t len = get_len();
sourcef.resize(len + 1);
PoolVector<uint8_t>::Write w = sourcef.write();
int r = get_buffer(w.ptr(), len);
uint64_t r = get_buffer(w.ptr(), len);
ERR_FAIL_COND_V(r != len, String());
w[len] = 0;
@@ -547,8 +547,8 @@ void FileAccess::store_csv_line(const Vector<String> &p_values, const String &p_
store_line(line);
}
void FileAccess::store_buffer(const uint8_t *p_src, int p_length) {
for (int i = 0; i < p_length; i++) {
void FileAccess::store_buffer(const uint8_t *p_src, uint64_t p_length) {
for (uint64_t i = 0; i < p_length; i++) {
store_8(p_src[i]);
}
}
@@ -598,7 +598,7 @@ String FileAccess::get_md5(const String &p_file) {
unsigned char step[32768];
while (true) {
int br = f->get_buffer(step, 32768);
uint64_t br = f->get_buffer(step, 32768);
if (br > 0) {
ctx.update(step, br);
}
@@ -626,7 +626,7 @@ String FileAccess::get_multiple_md5(const Vector<String> &p_file) {
unsigned char step[32768];
while (true) {
int br = f->get_buffer(step, 32768);
uint64_t br = f->get_buffer(step, 32768);
if (br > 0) {
ctx.update(step, br);
}
@@ -655,7 +655,7 @@ String FileAccess::get_sha256(const String &p_file) {
unsigned char step[32768];
while (true) {
int br = f->get_buffer(step, 32768);
uint64_t br = f->get_buffer(step, 32768);
if (br > 0) {
ctx.update(step, br);
}