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Moved memorymapping files into a separate function

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This commit is contained in:
mkrsym1
2024-02-24 18:32:33 +02:00
parent 1b32246f9a
commit 46c0597492
4 changed files with 44 additions and 32 deletions
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44
game_payload/src/utils.c
View File

@ -5,31 +5,39 @@
#include <utils.h>
void utils_map_file(const wchar_t *path, struct file_mapping *map) {
map->file = CreateFileW(path, FILE_READ_ACCESS, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (map->file == INVALID_HANDLE_VALUE) {
msg_err_w(L"Could not open file: %ls", path);
}
map->mapping = CreateFileMappingA(map->file, NULL, PAGE_READONLY, 0, 0, NULL);
map->data = MapViewOfFile(map->mapping, FILE_MAP_READ, 0, 0, 0);
if (!map->data) {
msg_err_w(L"Could not map view of file %ls", path);
}
}
void utils_unmap_file(struct file_mapping *map) {
UnmapViewOfFile(map->data);
CloseHandle(map->mapping);
CloseHandle(map->file);
}
int utils_path_exists(const wchar_t *filePath) {
return GetFileAttributesW(filePath) != INVALID_FILE_ATTRIBUTES;
}
uint32_t utils_file_crc32c(const wchar_t *filePath) {
HANDLE file = CreateFileW(filePath, FILE_READ_ACCESS, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (!file) {
msg_err_w(L"Could not open file: %ls", filePath);
}
struct file_mapping map;
utils_map_file(filePath, &map);
LARGE_INTEGER fileSize;
GetFileSizeEx(file, &fileSize);
GetFileSizeEx(map.file, &fileSize);
HANDLE hMap = CreateFileMappingA(file, NULL, PAGE_READONLY, 0, 0, NULL);
char *map = MapViewOfFile(hMap, FILE_MAP_READ, 0, 0, 0);
if (!map) {
msg_err_w(L"Could not create file mapping for %ls", filePath);
}
uint32_t crc = crc32c(0, map, fileSize.QuadPart);
UnmapViewOfFile(map);
CloseHandle(hMap);
CloseHandle(file);
uint32_t crc = crc32c(0, map.data, fileSize.QuadPart);
utils_unmap_file(&map);
return crc;
}
@ -51,8 +59,8 @@ void utils_create_parent_dirs(const wchar_t *path) {
void utils_save_to_file(const wchar_t *filePath, const void *buf, size_t length) {
HANDLE file = CreateFileW(filePath, FILE_WRITE_ACCESS, FILE_SHARE_READ, NULL, CREATE_NEW, FILE_ATTRIBUTE_NORMAL, NULL);
if (!file) {
msg_err_w(L"Could not open file: %ls", filePath);
if (file == INVALID_HANDLE_VALUE) {
msg_err_w(L"Could not create file: %ls", filePath);
}
WriteFile(file, buf, length, NULL, FALSE);