caca_file(3caca)                    libcaca                   caca_file(3caca)

NAME
       caca_file - libcaca file IO

SYNOPSIS
   Topics
       libcaca importers/exporters from/to various

   Functions
       __extern caca_file_t * caca_file_open (char const *, const char *)
           Open a file for reading or writing.
       __extern int caca_file_close (caca_file_t *)
           Close a file handle.
       __extern uint64_t caca_file_tell (caca_file_t *)
           Return the position in a file handle.
       __extern size_t caca_file_read (caca_file_t *, void *, size_t)
           Read data from a file handle.
       __extern size_t caca_file_write (caca_file_t *, const void *, size_t)
           Write data to a file handle.
       __extern char * caca_file_gets (caca_file_t *, char *, int)
           Read a line from a file handle.
       __extern int caca_file_eof (caca_file_t *)
           Tell whether a file handle reached end of file.

Detailed Description
       These functions allow to read and write files in a platform-independent
       way.

Function Documentation
   __extern caca_file_t * caca_file_open (char const * path, const char *
       mode)
       Create a caca file handle for a file. If the file is zipped, it is
       decompressed on the fly.

       If an error occurs, NULL is returned and errno is set accordingly:

       o ENOSTS Function not implemented.

       o EINVAL File not found or permission denied.

       Parameters
           path The file path
           mode The file open mode

       Returns
           A file handle to path.

       Referenced by caca_import_canvas_from_file().

   __extern int caca_file_close (caca_file_t * fp)
       Close and destroy the resources associated with a caca file handle.

       This function is a wrapper for fclose() or, if available, gzclose().

       Parameters
           fp The file handle

       Returns
           The return value of fclose() or gzclose().

       Referenced by caca_import_canvas_from_file().

   __extern uint64_t caca_file_tell (caca_file_t * fp)
       Return the file handle position, in bytes.

       Parameters
           fp The file handle

       Returns
           The current offset in the file handle.

   __extern size_t caca_file_read (caca_file_t * fp, void * ptr, size_t size)
       Read data from a file handle and copy them into the given buffer.

       Parameters
           fp The file handle
           ptr The destination buffer
           size The number of bytes to read

       Returns
           The number of bytes read

       Referenced by caca_import_canvas_from_file().

   __extern size_t caca_file_write (caca_file_t * fp, const void * ptr, size_t
       size)
       Write the contents of the given buffer to the file handle.

       Parameters
           fp The file handle
           ptr The source buffer
           size The number of bytes to write

       Returns
           The number of bytes written

   __extern char * caca_file_gets (caca_file_t * fp, char * s, int size)
       Read one line of data from a file handle, up to one less than the given
       number of bytes. A trailing zero is appended to the data.

       Parameters
           fp The file handle
           s The destination buffer
           size The maximum number of bytes to read

       Returns
           The number of bytes read, including the trailing zero

   __extern int caca_file_eof (caca_file_t * fp)
       Return the end-of-file status of the file handle.

       This function is a wrapper for feof() or, if available, gzeof().

       Parameters
           fp The file handle

       Returns
           1 if EOF was reached, 0 otherwise

       Referenced by caca_import_canvas_from_file().

Author
       Generated automatically by Doxygen for libcaca from the source code.

Version 0.99.beta20        Thu Apr 18 2024 22:47:49           caca_file(3caca)