103 lines
2.4 KiB
C
103 lines
2.4 KiB
C
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/*
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Copy Right FourTech LLC, 2016
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All Rights Are Reserved
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The OS agnostic file tracking API for applications
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that want to interact with potentially many files on
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the disk that could be changed by other applications.
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Created on: 20.07.2016
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*/
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// TOP
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#ifndef FILE_TRACK_4TECH_H
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#define FILE_TRACK_4TECH_H
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#include <stdint.h>
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enum{
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FileTrack_Good,
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FileTrack_MemoryTooSmall,
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FileTrack_OutOfTableMemory,
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FileTrack_OutOfListenerMemory,
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FileTrack_FileNotFound,
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FileTrack_FileAlreadyTracked,
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FileTrack_FileNotTracked,
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FileTrack_NoMoreEvents,
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FileTrack_FileSystemError
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};
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typedef struct{
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uint8_t opaque[128];
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} File_Track_System;
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typedef struct{
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uint32_t id[4];
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} File_Index;
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static File_Index
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zero_file_index(){
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File_Index a = {0};
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return(a);
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}
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static int32_t
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file_index_eq(File_Index a, File_Index b){
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return ((a.id[0] == b.id[0]) &&
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(a.id[1] == b.id[1]) &&
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(a.id[2] == b.id[2]) &&
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(a.id[3] == b.id[3]));
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}
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typedef int32_t File_Track_Result;
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typedef uint64_t File_Time;
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File_Track_Result
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init_track_system(File_Track_System *system,
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void *table_memory, int32_t table_memory_size,
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void *listener_memory, int32_t listener_memory_size);
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File_Track_Result
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begin_tracking_file(File_Track_System *system, char *name, File_Index *index, File_Time *time);
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File_Track_Result
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get_tracked_file_index(File_Track_System *system, char *name, File_Index *index);
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File_Track_Result
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stop_tracking_file(File_Track_System *system, File_Index index);
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File_Track_Result
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count_tracked_files(File_Track_System *system, int32_t *count);
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File_Track_Result
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get_tracked_file_time(File_Track_System *system, File_Index index, File_Time *time);
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File_Track_Result
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move_track_system(File_Track_System *system, void *mem, int32_t size);
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File_Track_Result
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expand_track_system_listeners(File_Track_System *system, void *mem, int32_t size);
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File_Track_Result
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get_change_event(File_Track_System *system, File_Index *index);
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File_Track_Result
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get_tracked_file_size(File_Track_System *system, File_Index index, uint32_t *size);
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File_Track_Result
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get_tracked_file_data(File_Track_System *system, File_Index index, void *mem, uint32_t size);
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File_Track_Result
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rewrite_tracked_file(File_Track_System *system, File_Index index,
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void *data, int32_t size, File_Time *time);
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File_Track_Result
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shut_down_track_system(File_Track_System *system);
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#endif
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// BOTTOM
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