mirror of https://github.com/flysand7/ciabatta.git
79 lines
3.1 KiB
C
79 lines
3.1 KiB
C
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#pragma once
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// Common errors
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#define _RT_STATUS_OK 0 // No errors
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#define _RT_ERROR_NOT_IMPLEMENTED -1 // Function not implemented
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#define _RT_ERROR_BAD_PARAM -2 // One of the function parameters was wrong
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#define _RT_ERROR_GENERIC -3 // Just any random error
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// File API errors
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#define _RT_STATUS_FILE_ACCESS 1 // No access to the file
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#define _RT_STATUS_FILE_NO_SPACE 2 // Storage device has no space for the file
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#define _RT_STATUS_FILE_EXISTS 3 // File exists when shouldn't
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#define _RT_STATUS_FILE_NOT_EXISTS 4 // File doesn't exist when should
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#define _RT_STATUS_FILE_DIRECTORY 5 // The file was a directory when shouldn't've been
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#define _RT_STATUS_FILE_NOT_DIRECTORY 6 // The file wasn't a directory when should've been
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#define _RT_STATUS_FILE_NAME_TOO_LONG 7 // The filename was too long for the Filesystem
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#define _RT_STATUS_FILE_LOOP 8 // Too many symlinks followed or a symlink encountered when expected none
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#define _RT_STATUS_FILE_BUSY 9 // The device is busy if exclusive access is requested
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#define _RT_STATUS_FILE_TOO_MANY_OPEN 10 // Too many open files in the process
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#define _RT_STATUS_FILE_NO_MEMORY 11 // No kernel memory or user limit on memory allocation exceeded
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#define _RT_STATUS_FILE_IO_ERROR 12 // I/O error
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#define _RT_STATUS_FILE_BAD_FILE 13 // Bad file handle
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#define _RT_STATUS_FILE_EOF 14 // Read operation reached the end-of-file
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// File API flags
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#define _RT_FILE_READ 0x01
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#define _RT_FILE_WRITE 0x02
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#define _RT_FILE_CREATE 0x04
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#define _RT_FILE_EXCLUSIVE 0x08
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#define _RT_FILE_TRUNCATE 0x10
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typedef i32 _RT_Status;
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// API implementation flags (managed and used by the layers on top of tinyrt)
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static bool _rt_api_file;
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static bool _rt_api_tmpfile;
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// Initialization & termination of minirt
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static _RT_Status _rt_init();
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static _RT_Status _rt_deinit();
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// Program API
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#if _RT_API_PROGRAM == 1
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[[noreturn]] static void _rt_program_exit(int code);
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#endif
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// Environment API
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#if _RT_API_ENVIRONMENT == 1
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static _RT_Status _rt_shell_exec(char const *cmd);
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static _RT_Status _rt_env_get(char const *name);
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#endif
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// File API
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struct _RT_File typedef _RT_File;
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struct _RT_File {
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union {
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void *handle;
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u64 fd;
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};
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i32 flags;
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};
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#if _RT_API_FILE == 1
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static _RT_File _rt_file_stdin;
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static _RT_File _rt_file_stdout;
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static _RT_File _rt_file_stderr;
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static _RT_Status _rt_file_std_handles_init();
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static _RT_Status _rt_file_open(_RT_File *file, char const *name, int flags);
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static _RT_Status _rt_file_read(u64 size, void *buffer, _RT_File *from, u64 *out_bytes_read);
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static _RT_Status _rt_file_write(_RT_File *to, u64 size, void *buffer, u64 *out_bytes_written);
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static _RT_Status _rt_file_close(_RT_File *file);
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#endif
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// Memory API
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#if _RT_API_MEMORY == 1
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static _RT_Status _rt_mem_alloc(void *optional_desired_addr, u64 min_size, void **out_addr);
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static _RT_Status _rt_mem_free(void *ptr);
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#endif
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