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    1: /*
    2:    +----------------------------------------------------------------------+
    3:    | Zend Engine                                                          |
    4:    +----------------------------------------------------------------------+
    5:    | Copyright (c) 1998-2012 Zend Technologies Ltd. (http://www.zend.com) |
    6:    +----------------------------------------------------------------------+
    7:    | This source file is subject to version 2.00 of the Zend license,     |
    8:    | that is bundled with this package in the file LICENSE, and is        |
    9:    | available through the world-wide-web at the following url:           |
   10:    | http://www.zend.com/license/2_00.txt.                                |
   11:    | If you did not receive a copy of the Zend license and are unable to  |
   12:    | obtain it through the world-wide-web, please send a note to          |
   13:    | license@zend.com so we can mail you a copy immediately.              |
   14:    +----------------------------------------------------------------------+
   15:    | Authors: Wez Furlong <wez@thebrainroom.com>                          |
   16:    |          Scott MacVicar <scottmac@php.net>                           |
   17:    |          Nuno Lopes <nlopess@php.net>                                |
   18:    |          Marcus Boerger <helly@php.net>                              |
   19:    +----------------------------------------------------------------------+
   20: */
   21: 
   22: /* $Id: zend_stream.h,v 1.1.1.2 2012/05/29 12:34:36 misho Exp $ */
   23: 
   24: #ifndef ZEND_STREAM_H
   25: #define ZEND_STREAM_H
   26: 
   27: /* Lightweight stream implementation for the ZE scanners.
   28:  * These functions are private to the engine.
   29:  * */
   30: typedef size_t (*zend_stream_fsizer_t)(void* handle TSRMLS_DC);
   31: typedef size_t (*zend_stream_reader_t)(void* handle, char *buf, size_t len TSRMLS_DC);
   32: typedef void   (*zend_stream_closer_t)(void* handle TSRMLS_DC);
   33: 
   34: #define ZEND_MMAP_AHEAD 32 
   35: 
   36: typedef enum {
   37: 	ZEND_HANDLE_FILENAME,
   38: 	ZEND_HANDLE_FD,
   39: 	ZEND_HANDLE_FP,
   40: 	ZEND_HANDLE_STREAM,
   41: 	ZEND_HANDLE_MAPPED
   42: } zend_stream_type;
   43: 
   44: typedef struct _zend_mmap {
   45: 	size_t      len;
   46: 	size_t      pos;
   47: 	void        *map;
   48: 	char        *buf;
   49: 	void                  *old_handle;
   50: 	zend_stream_closer_t   old_closer;
   51: } zend_mmap;
   52: 
   53: typedef struct _zend_stream {
   54: 	void        *handle;
   55: 	int         isatty;
   56: 	zend_mmap   mmap;
   57: 	zend_stream_reader_t   reader;
   58: 	zend_stream_fsizer_t   fsizer;
   59: 	zend_stream_closer_t   closer;
   60: } zend_stream;
   61: 
   62: typedef struct _zend_file_handle {
   63: 	zend_stream_type  type;
   64: 	const char        *filename;
   65: 	char              *opened_path;
   66: 	union {
   67: 		int           fd;
   68: 		FILE          *fp;
   69: 		zend_stream   stream;
   70: 	} handle;
   71: 	zend_bool free_filename;
   72: } zend_file_handle;
   73: 
   74: BEGIN_EXTERN_C()
   75: ZEND_API int zend_stream_open(const char *filename, zend_file_handle *handle TSRMLS_DC);
   76: ZEND_API int zend_stream_fixup(zend_file_handle *file_handle, char **buf, size_t *len TSRMLS_DC);
   77: ZEND_API void zend_file_handle_dtor(zend_file_handle *fh TSRMLS_DC);
   78: ZEND_API int zend_compare_file_handles(zend_file_handle *fh1, zend_file_handle *fh2);
   79: END_EXTERN_C()
   80: 
   81: #endif