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Update POSIX file IO

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Abdelrahman Said
2026-01-03 03:13:42 +00:00
parent c2ca99cac4
commit 576699996f
4 changed files with 61 additions and 87 deletions
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62
src/os/file/file.c
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@@ -15,7 +15,7 @@ WFile *wapp_file_open(const Allocator *allocator, Str8RO *filepath, FileAccessMo
i64 wapp_file_get_current_position(WFile *file) {
wapp_debug_assert(file != NULL, "`file` should not be NULL.");
return _file_get_current_position(file);
return _file_seek(file, 0, WAPP_SEEK_CURRENT);
}
i64 wapp_file_seek(WFile *file, i64 offset, FileSeekOrigin origin) {
@@ -25,13 +25,29 @@ i64 wapp_file_seek(WFile *file, i64 offset, FileSeekOrigin origin) {
i64 wapp_file_get_length(WFile *file) {
wapp_debug_assert(file != NULL, "`file` should not be NULL.");
return _file_get_length(file);
i64 current = wapp_file_get_current_position(file);
_file_seek(file, 0, WAPP_SEEK_END);
i64 output = wapp_file_get_current_position(file);
// Restore position
_file_seek(file, current, WAPP_SEEK_START);
return output;
}
u64 wapp_file_read(void *dst_buf, WFile *file, u64 byte_count) {
wapp_debug_assert(dst_buf != NULL && file != NULL,
"`dst_buf` and `file` should not be NULL.");
return _file_read(dst_buf, file, byte_count);
i64 file_length = wapp_file_get_length(file);
if (file_length < 0) {
return 0;
}
return _file_read(dst_buf, byte_count, file, file_length);
}
i64 wapp_file_write(const void *src_buf, WFile *file, u64 byte_count) {
@@ -43,13 +59,49 @@ i64 wapp_file_write(const void *src_buf, WFile *file, u64 byte_count) {
u64 wapp_file_read_array(GenericArray dst_buf, WFile *file, u64 item_count) {
wapp_debug_assert(dst_buf != NULL && file != NULL,
"`dst_buf` and `file` should not be NULL.");
return _file_read_array(dst_buf, file, item_count);
i64 _file_length = wapp_file_get_length(file);
if (_file_length < 0) {
return 0;
}
u64 file_length = (u64)_file_length;
u64 item_size = wapp_array_item_size(dst_buf);
u64 dst_byte_capacity = wapp_array_capacity(dst_buf) * item_size;
u64 req_byte_count = item_count * item_size;
u64 copy_byte_count = 0;
if (req_byte_count <= file_length && req_byte_count <= dst_byte_capacity) {
copy_byte_count = req_byte_count;
} else {
copy_byte_count = file_length <= dst_byte_capacity ? file_length : dst_byte_capacity;
}
u64 byte_count = _file_read(dst_buf, copy_byte_count, file, file_length);
if (byte_count == 0) {
return 0;
}
wapp_array_set_count(dst_buf, byte_count / item_size);
return wapp_array_count(dst_buf);
}
i64 wapp_file_write_array(const GenericArray src_buf, WFile *file, u64 item_count) {
wapp_debug_assert(src_buf != NULL && file != NULL,
"`src_buf` and `file` should not be NULL.");
return _file_write_array(src_buf, file, item_count);
u64 item_size = wapp_array_item_size(src_buf);
u64 src_byte_count = wapp_array_count(src_buf) * item_size;
u64 req_byte_count = item_count * item_size;
u64 to_copy = req_byte_count <= src_byte_count ? req_byte_count : src_byte_count;
i64 bytes_written = _file_write(src_buf, file, to_copy);
if (bytes_written < 0) {
return 0;
}
return (u64)bytes_written / item_size;
}
i32 wapp_file_flush(WFile *file) {