recoll / Code / Diff of /src/utils/readfile.h

Diff of /src/utils/readfile.h [3d3ee8] .. [533068]

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#define _READFILE_H_INCLUDED_

#include <sys/types.h>

#include <string>


/** 
 * Read file in chunks, calling an accumulator for each chunk. Can be used 
 * for reading in a file, computing an md5...
 */
class FileScanDo {
public:
    virtual ~FileScanDo() {}
    virtual bool init(size_t size, std::string *reason) = 0;
    virtual bool data(const char *buf, int cnt, std::string* reason) = 0;
};
bool file_scan(const std::string &filename, FileScanDo* doer, std::string *reason = 0);
/* Same but only process count cnt from offset offs. Set cnt to size_t(-1) 
 * for no limit */
bool file_scan(const std::string &fn, FileScanDo* doer, off_t offs, size_t cnt,
               std::string *reason = 0);

/**
 * Read file into string.
 * @return true for ok, false else
 */
bool file_to_string(const std::string &filename, std::string &data, std::string *reason = 0);

/** Read file chunk into string. Set cnt to size_t(-1) for whole file */
bool file_to_string(const std::string &filename, std::string &data, 
                    off_t offs, size_t cnt, std::string *reason = 0);

#endif /* _READFILE_H_INCLUDED_ */

	a/src/utils/readfile.h		b/src/utils/readfile.h
	...		...
18	#define _READFILE_H_INCLUDED_	18	#define _READFILE_H_INCLUDED_
19		19
20	#include <sys/types.h>	20	#include <sys/types.h>
21		21
22	#include <string>	22	#include <string>
23	using std::string;
24		23
25	/**	24	/**
26	* Read file in chunks, calling an accumulator for each chunk. Can be used	25	* Read file in chunks, calling an accumulator for each chunk. Can be used
27	* for reading in a file, computing an md5...	26	* for reading in a file, computing an md5...
28	*/	27	*/
29	class FileScanDo {	28	class FileScanDo {
30	public:	29	public:
31	virtual ~FileScanDo() {}	30	virtual ~FileScanDo() {}
32	virtual bool init(size_t size, string *reason) = 0;	31	virtual bool init(size_t size, std::string *reason) = 0;
33	virtual bool data(const char buf, int cnt, string reason) = 0;	32	virtual bool data(const char buf, int cnt, std::string reason) = 0;
34	};	33	};
35	bool file_scan(const string &filename, FileScanDo* doer, string *reason = 0);	34	bool file_scan(const std::string &filename, FileScanDo* doer, std::string *reason = 0);
36	/* Same but only process count cnt from offset offs. Set cnt to size_t(-1)	35	/* Same but only process count cnt from offset offs. Set cnt to size_t(-1)
37	* for no limit */	36	* for no limit */
38	bool file_scan(const string &fn, FileScanDo* doer, off_t offs, size_t cnt,	37	bool file_scan(const std::string &fn, FileScanDo* doer, off_t offs, size_t cnt,
39	string *reason = 0);	38	std::string *reason = 0);
40		39
41	/**	40	/**
42	* Read file into string.	41	* Read file into string.
43	* @return true for ok, false else	42	* @return true for ok, false else
44	*/	43	*/
45	bool file_to_string(const string &filename, string &data, string *reason = 0);	44	bool file_to_string(const std::string &filename, std::string &data, std::string *reason = 0);
46		45
47	/** Read file chunk into string. Set cnt to size_t(-1) for whole file */	46	/** Read file chunk into string. Set cnt to size_t(-1) for whole file */
48	bool file_to_string(const string &filename, string &data,	47	bool file_to_string(const std::string &filename, std::string &data,
49	off_t offs, size_t cnt, string *reason = 0);	48	off_t offs, size_t cnt, std::string *reason = 0);
50		49
51	#endif /* _READFILE_H_INCLUDED_ */	50	#endif /* _READFILE_H_INCLUDED_ */