diff options
Diffstat (limited to 'arm9/lib/src/FS_file.c')
| -rw-r--r-- | arm9/lib/src/FS_file.c | 244 |
1 files changed, 0 insertions, 244 deletions
diff --git a/arm9/lib/src/FS_file.c b/arm9/lib/src/FS_file.c deleted file mode 100644 index 11595c02..00000000 --- a/arm9/lib/src/FS_file.c +++ /dev/null @@ -1,244 +0,0 @@ -#include "nitro.h" -#include "MI_byteAccess.h" -#include "FS_rom.h" -#include "FS_file.h" -#include "FSi_util.h" - -extern FSDirPos current_dir_pos; -BOOL is_init = FALSE; - -static BOOL FSi_FindPath(FSFile * p_dir, const char * path, FSFileID * p_file_id, FSDirPos * p_dir_pos); - -ARM_FUNC void FS_Init(u32 default_dma_no) -{ - if (!is_init) - { - is_init = TRUE; - FSi_InitRom(default_dma_no); - } -} - -ARM_FUNC BOOL FS_IsAvailable(void) -{ - return is_init; -} - -ARM_FUNC void FS_InitFile(FSFile * p_file) -{ - p_file->link.next = p_file->link.prev = NULL; - OS_InitThreadQueue(p_file->queue); - p_file->arc = NULL; - p_file->command = FS_COMMAND_INVALID; - p_file->stat = 0; -} - -static BOOL FSi_FindPath(FSFile * p_dir, const char * path, FSFileID * p_file_id, FSDirPos * p_dir_pos) -{ - FSDirPos pos; - if (FSi_IsSlash(MI_ReadByte(path))) - { - pos.arc = current_dir_pos.arc; - pos.own_id = 0; - pos.pos = 0; - pos.index = 0; - path++; - } - else - { - int i; - pos = current_dir_pos; - for (i = 0; i <= FS_ARCHIVE_NAME_LEN_MAX; ++i) - { - u32 c = MI_ReadByte(path + i); - if (!c || FSi_IsSlash(c)) - break; - else if (c == ':') - { - FSArchive * const p_arc = FS_FindArchive(path, i); - if (!p_arc) - { - return FALSE; - } - else if (!FS_IsArchiveLoaded(p_arc)) - { - return FALSE; - } - pos.arc = p_arc; - pos.pos = 0; - pos.index = 0; - pos.own_id = 0; - path += i + 1; - if (FSi_IsSlash(MI_ReadByte(path))) - ++path; - break; - } - } - } - p_dir->arc = pos.arc; - p_dir->arg.findpath.path = path; - p_dir->arg.findpath.pos = pos; - if (p_dir_pos) - { - p_dir->arg.findpath.find_directory = TRUE; - p_dir->arg.findpath.result.dir = p_dir_pos; - } - else - { - p_dir->arg.findpath.find_directory = FALSE; - p_dir->arg.findpath.result.file = p_file_id; - } - return FSi_SendCommand(p_dir, FS_COMMAND_FINDPATH); -} - -ARM_FUNC int FSi_ReadFileCore(FSFile * p_file, void * dst, s32 len, BOOL async) -{ - const s32 pos = (s32)p_file->prop.file.pos; - const s32 rest = (s32)(p_file->prop.file.bottom - pos); - const u32 org = (u32)len; - if (len > rest) - len = rest; - if (len < 0) - len = 0; - p_file->arg.readfile.dst = dst; - p_file->arg.readfile.len_org = org; - p_file->arg.readfile.len = (u32)len; - if (!async) - p_file->stat |= FS_FILE_STATUS_SYNC; - (void)FSi_SendCommand(p_file, FS_COMMAND_READFILE); - if (!async) - { - if (FS_WaitAsync(p_file)) - len = (s32)(p_file->prop.file.pos - pos); - else - len = -1; - } - return len; -} - -ARM_FUNC BOOL FS_ConvertPathToFileID(FSFileID * p_file_id, const char * path) -{ - FSFile dir; - FS_InitFile(&dir); - if (!FSi_FindPath(&dir, path, p_file_id, NULL)) - return FALSE; - return TRUE; -} - -ARM_FUNC BOOL FS_OpenFileDirect(FSFile * p_file, FSArchive * p_arc, u32 image_top, u32 image_bottom, u32 file_index) -{ - p_file->arc = p_arc; - p_file->arg.openfiledirect.index = file_index; - p_file->arg.openfiledirect.top = image_top; - p_file->arg.openfiledirect.bottom = image_bottom; - if (!FSi_SendCommand(p_file, FS_COMMAND_OPENFILEDIRECT)) - return FALSE; - p_file->stat |= FS_FILE_STATUS_IS_FILE; - p_file->stat &= ~FS_FILE_STATUS_IS_DIR; - return TRUE; -} - -ARM_FUNC BOOL FS_OpenFileFast(FSFile * p_file, FSFileID file_id) -{ - if (!file_id.arc) - return FALSE; - p_file->arc = file_id.arc; - p_file->arg.openfilefast.id = file_id; - if (!FSi_SendCommand(p_file, FS_COMMAND_OPENFILEFAST)) - return FALSE; - p_file->stat |= FS_FILE_STATUS_IS_FILE; - p_file->stat &= ~FS_FILE_STATUS_IS_DIR; - return TRUE; -} - -ARM_FUNC BOOL FS_OpenFile(FSFile * p_file, const char * path) -{ - FSFileID file_id; - return FS_ConvertPathToFileID(&file_id, path) && FS_OpenFileFast(p_file, file_id); -} - -ARM_FUNC BOOL FS_CloseFile(FSFile * p_file) -{ - if (!FSi_SendCommand(p_file, FS_COMMAND_CLOSEFILE)) - return FALSE; - p_file->arc = NULL; - p_file->command = FS_COMMAND_INVALID; - p_file->stat &= ~(FS_FILE_STATUS_IS_FILE | FS_FILE_STATUS_IS_DIR); - return TRUE; -} - -ARM_FUNC BOOL FS_WaitAsync(FSFile * p_file) -{ - BOOL is_owner = FALSE; - OSIntrMode bak_par = OS_DisableInterrupts(); - if (FS_IsBusy(p_file)) - { - is_owner = !(p_file->stat & (FS_FILE_STATUS_SYNC | FS_FILE_STATUS_OPERATING)); - if (is_owner) - { - p_file->stat |= FS_FILE_STATUS_SYNC; - do - { - OS_SleepThread(p_file->queue); - } while (!(p_file->stat & FS_FILE_STATUS_OPERATING)); - } - else - { - do - { - OS_SleepThread(p_file->queue); - } while (FS_IsBusy(p_file)); - } - } - (void)OS_RestoreInterrupts(bak_par); - if (is_owner) - { - return FSi_ExecuteSyncCommand(p_file); - } - - return FS_IsSucceeded(p_file); -} - -ARM_FUNC int FS_ReadFileAsync(FSFile * p_file, void * dst, s32 len) -{ - return FSi_ReadFileCore(p_file, dst, len, TRUE); -} - -ARM_FUNC int FS_ReadFile(FSFile * p_file, void * dst, s32 len) -{ - return FSi_ReadFileCore(p_file, dst, len, FALSE); -} - -ARM_FUNC BOOL FS_SeekFile(FSFile * p_file, s32 offset, FSSeekFileMode origin) -{ - switch (origin) - { - case FS_SEEK_SET: - offset += p_file->prop.file.top; - break; - case FS_SEEK_CUR: - offset += p_file->prop.file.pos; - break; - case FS_SEEK_END: - offset += p_file->prop.file.bottom; - break; - default: - return FALSE; - } - if (offset < (s32)p_file->prop.file.top) - offset = (s32)p_file->prop.file.top; - if (offset > (s32)p_file->prop.file.bottom) - offset = (s32)p_file->prop.file.bottom; - p_file->prop.file.pos = (u32)offset; - return TRUE; -} - -ARM_FUNC BOOL FS_ChangeDir(const char * path) -{ - FSDirPos pos; - FSFile dir; - FS_InitFile(&dir); - if (!FSi_FindPath(&dir, path, NULL, &pos)) - return FALSE; - current_dir_pos = pos; - return TRUE; -} |