RPXLoadingModule/src/FSDirReplacements.cpp

#include "FSDirReplacements.h"
#include <coreinit/filesystem.h>
#include "utils/logger.h"
#include "globals.h"
#include "FSWrapper.h"
#include "FileUtils.h"

#define SYNC_RESULT_HANDLER [](FSStatus res) -> FSStatus { \
    return res; \
}

#define ASYNC_RESULT_HANDLER [client, block, asyncData](FSStatus res) -> FSStatus { \
   DEBUG_FUNCTION_LINE_VERBOSE("Result was %d", res);                                                                 \
    return send_result_async(client, block, asyncData, res);\
}

DECL_FUNCTION(FSStatus, FSOpenDir, FSClient *client, FSCmdBlock *block, char *path, FSDirectoryHandle *handle, FSErrorFlag errorMask) {
    DEBUG_FUNCTION_LINE_VERBOSE("%s", path);
    FSStatus result = FSOpenDirWrapper(path, handle, errorMask,
                                       [client, block, handle, errorMask]
                                               (char *_path) -> FSStatus {
                                           return real_FSOpenDir(client, block, _path, handle, errorMask);
                                       },
                                       SYNC_RESULT_HANDLER);
    if (result != FS_STATUS_USE_REAL_OS) {
        DEBUG_FUNCTION_LINE_VERBOSE("Result was %d", result);
        return result;
    }

    return real_FSOpenDir(client, block, path, handle, errorMask);
}

DECL_FUNCTION(FSStatus, FSOpenDirAsync, FSClient *client, FSCmdBlock *block, char *path, FSDirectoryHandle *handle, FSErrorFlag errorMask, FSAsyncData *asyncData) {
    DEBUG_FUNCTION_LINE_VERBOSE("%s", path);
    FSStatus result = FSOpenDirWrapper(path, handle, errorMask,
                                       [client, block, handle, errorMask, asyncData]
                                               (char *_path) -> FSStatus {
                                           return real_FSOpenDirAsync(client, block, _path, handle, errorMask, asyncData);
                                       },
                                       ASYNC_RESULT_HANDLER);
    if (result != FS_STATUS_USE_REAL_OS) {
        return result;
    }

    return real_FSOpenDirAsync(client, block, path, handle, errorMask, asyncData);
}

DECL_FUNCTION(FSStatus, FSReadDir, FSClient *client, FSCmdBlock *block, FSDirectoryHandle handle, FSDirectoryEntry *entry, FSErrorFlag errorMask) {
    DEBUG_FUNCTION_LINE_VERBOSE();
    FSStatus result = FSReadDirWrapper(handle, entry, errorMask, SYNC_RESULT_HANDLER);
    if (result != FS_STATUS_USE_REAL_OS) {
        return result;
    }

    return real_FSReadDir(client, block, handle, entry, errorMask);
}

DECL_FUNCTION(FSStatus, FSReadDirAsync, FSClient *client, FSCmdBlock *block, FSDirectoryHandle handle, FSDirectoryEntry *entry, FSErrorFlag errorMask, FSAsyncData *asyncData) {
    DEBUG_FUNCTION_LINE_VERBOSE();
    FSStatus result = FSReadDirWrapper(handle, entry, errorMask, ASYNC_RESULT_HANDLER);
    if (result != FS_STATUS_USE_REAL_OS) {
        return result;
    }

    return real_FSReadDirAsync(client, block, handle, entry, errorMask, asyncData);
}

DECL_FUNCTION(FSStatus, FSCloseDir, FSClient *client, FSCmdBlock *block, FSDirectoryHandle handle, FSErrorFlag errorMask) {
    DEBUG_FUNCTION_LINE_VERBOSE();
    FSStatus result = FSCloseDirWrapper(handle, errorMask, SYNC_RESULT_HANDLER);
    if (result != FS_STATUS_USE_REAL_OS) {
        return result;
    }

    return real_FSCloseDir(client, block, handle, errorMask);
}

DECL_FUNCTION(FSStatus, FSCloseDirAsync, FSClient *client, FSCmdBlock *block, FSDirectoryHandle handle, FSErrorFlag errorMask, FSAsyncData *asyncData) {
    DEBUG_FUNCTION_LINE_VERBOSE();
    FSStatus result = FSCloseDirWrapper(handle, errorMask, ASYNC_RESULT_HANDLER);
    if (result != FS_STATUS_USE_REAL_OS) {
        return result;
    }

    return real_FSCloseDirAsync(client, block, handle, errorMask, asyncData);
}

DECL_FUNCTION(FSStatus, FSRewindDir, FSClient *client, FSCmdBlock *block, FSDirectoryHandle handle, FSErrorFlag errorMask) {
    DEBUG_FUNCTION_LINE_VERBOSE();
    FSStatus result = FSRewindDirWrapper(handle, errorMask, SYNC_RESULT_HANDLER);
    if (result != FS_STATUS_USE_REAL_OS) {
        return result;
    }

    return real_FSRewindDir(client, block, handle, errorMask);
}

DECL_FUNCTION(FSStatus, FSRewindDirAsync, FSClient *client, FSCmdBlock *block, FSDirectoryHandle handle, FSErrorFlag errorMask, FSAsyncData *asyncData) {
    DEBUG_FUNCTION_LINE_VERBOSE();
    FSStatus result = FSRewindDirWrapper(handle, errorMask, ASYNC_RESULT_HANDLER);
    if (result != FS_STATUS_USE_REAL_OS) {
        return result;
    }

    return real_FSRewindDirAsync(client, block, handle, errorMask, asyncData);
}

DECL_FUNCTION(FSStatus, FSMakeDir, FSClient *client, FSCmdBlock *block, char *path, FSErrorFlag errorMask) {
    DEBUG_FUNCTION_LINE_VERBOSE("%s", path);
    FSStatus result = FSMakeDirWrapper(path, errorMask,
                                       [client, block, errorMask]
                                               (char *_path) -> FSStatus {
                                           return real_FSMakeDir(client, block, _path, errorMask);
                                       },
                                       SYNC_RESULT_HANDLER);
    if (result != FS_STATUS_USE_REAL_OS) {
        return result;
    }

    return real_FSMakeDir(client, block, path, errorMask);
}

DECL_FUNCTION(FSStatus, FSMakeDirAsync, FSClient *client, FSCmdBlock *block, char *path, FSErrorFlag errorMask, FSAsyncData *asyncData) {
    DEBUG_FUNCTION_LINE_VERBOSE("%s", path);
    FSStatus result = FSMakeDirWrapper(path, errorMask,
                                       [client, block, errorMask, asyncData]
                                               (char *_path) -> FSStatus {
                                           return real_FSMakeDirAsync(client, block, _path, errorMask, asyncData);
                                       },
                                       ASYNC_RESULT_HANDLER);
    if (result != FS_STATUS_USE_REAL_OS) {
        return result;
    }
    return real_FSMakeDirAsync(client, block, path, errorMask, asyncData);
}

function_replacement_data_t fs_dir_function_replacements[] = {
        REPLACE_FUNCTION(FSOpenDir, LIBRARY_COREINIT, FSOpenDir),
        REPLACE_FUNCTION(FSOpenDirAsync, LIBRARY_COREINIT, FSOpenDirAsync),

        REPLACE_FUNCTION(FSReadDir, LIBRARY_COREINIT, FSReadDir),
        REPLACE_FUNCTION(FSReadDirAsync, LIBRARY_COREINIT, FSReadDirAsync),

        REPLACE_FUNCTION(FSCloseDir, LIBRARY_COREINIT, FSCloseDir),
        REPLACE_FUNCTION(FSCloseDirAsync, LIBRARY_COREINIT, FSCloseDirAsync),

        REPLACE_FUNCTION(FSRewindDir, LIBRARY_COREINIT, FSRewindDir),
        REPLACE_FUNCTION(FSRewindDirAsync, LIBRARY_COREINIT, FSRewindDirAsync),

        REPLACE_FUNCTION(FSMakeDir, LIBRARY_COREINIT, FSMakeDir),
        REPLACE_FUNCTION(FSMakeDirAsync, LIBRARY_COREINIT, FSMakeDirAsync),
};

uint32_t fs_dir_function_replacements_size = sizeof(fs_dir_function_replacements) / sizeof(function_replacement_data_t);