101 lines
3.6 KiB
C
101 lines
3.6 KiB
C
/************************************************************/ /**
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*
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* @file: platform_io_internal.h
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* @author: Martin Fouilleul
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* @date: 10/06/2023
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*
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*****************************************************************/
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#ifndef __PLATFORM_IO_INTERNAL_H_
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#define __PLATFORM_IO_INTERNAL_H_
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#include "platform.h"
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#include "platform_io.h"
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#include "platform_io_dialog.h"
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#if OC_PLATFORM_MACOS || PLATFORM_LINUX
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typedef int oc_file_desc;
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#elif OC_PLATFORM_WINDOWS
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#ifndef WIN32_LEAN_AND_MEAN
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#define WIN32_LEAN_AND_MEAN
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#endif
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#include <windows.h>
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typedef HANDLE oc_file_desc;
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#endif
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typedef struct oc_file_slot
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{
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u32 generation;
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oc_io_error error;
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bool fatal;
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oc_list_elt freeListElt;
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oc_file_type type;
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oc_file_access rights;
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oc_file_desc fd;
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} oc_file_slot;
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enum
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{
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OC_IO_MAX_FILE_SLOTS = 256,
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};
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typedef struct oc_file_table
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{
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oc_file_slot slots[OC_IO_MAX_FILE_SLOTS];
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u32 nextSlot;
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oc_list freeList;
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} oc_file_table;
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ORCA_API oc_file_table* oc_file_table_get_global();
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oc_file_slot* oc_file_slot_alloc(oc_file_table* table);
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void oc_file_slot_recycle(oc_file_table* table, oc_file_slot* slot);
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oc_file oc_file_from_slot(oc_file_table* table, oc_file_slot* slot);
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oc_file_slot* oc_file_slot_from_handle(oc_file_table* table, oc_file handle);
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ORCA_API oc_io_cmp oc_io_wait_single_req_for_table(oc_io_req* req, oc_file_table* table);
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ORCA_API oc_file oc_file_open_with_request_for_table(oc_str8 path, oc_file_access rights, oc_file_open_flags flags, oc_file_table* table);
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ORCA_API oc_file_open_with_dialog_result oc_file_open_with_dialog_for_table(oc_arena* arena,
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oc_file_access rights,
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oc_file_open_flags flags,
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oc_file_dialog_desc* desc,
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oc_file_table* table);
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//-----------------------------------------------------------------------
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// raw io primitives
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//-----------------------------------------------------------------------
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oc_file_desc oc_file_desc_nil();
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bool oc_file_desc_is_nil(oc_file_desc fd);
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/*WARN
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oc_io_raw_xxx_at functions are similar to posix openat() regarding path resolution,
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but with some important differences:
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- If dirFd is a non-nil fd, path is considered relative to dirFd _even if it is an absolute oc_path_
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- If dirFd is a nil fd, it is _ignored_ (i.e., path can be absolute, or relative to the current directory)
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This means that:
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- dirFd behaves more like the _root_ of path, ie dirFd won't be ignore if we pass an absolute path,
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- we don't need a special handle value to use a path relative to the current working directory
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(we just pass a nil dirFd with a relative path)
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*/
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oc_file_desc oc_io_raw_open_at(oc_file_desc dirFd, oc_str8 path, oc_file_access accessRights, oc_file_open_flags openFlags);
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void oc_io_raw_close(oc_file_desc fd);
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oc_io_error oc_io_raw_last_error();
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bool oc_io_raw_file_exists_at(oc_file_desc dirFd, oc_str8 path, oc_file_open_flags openFlags);
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oc_io_error oc_io_raw_fstat(oc_file_desc fd, oc_file_status* status);
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oc_io_error oc_io_raw_fstat_at(oc_file_desc dirFd, oc_str8 path, oc_file_open_flags openFlags, oc_file_status* status);
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typedef struct oc_io_raw_read_link_result
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{
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oc_io_error error;
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oc_str8 target;
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} oc_io_raw_read_link_result;
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oc_io_raw_read_link_result oc_io_raw_read_link_at(oc_arena* arena, oc_file_desc dirFd, oc_str8 path);
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#endif //__PLATFORM_IO_INTERNAL_H_
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