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Changeset 683

Timestamp:

05/02/08 15:08:11 (4 years ago)

Author:

andrei

Message:

* Made atoi work with all string types, but also scheduled it for deprecation in favor of to!(int) and parse!(int).

* Made atof work with all string types, but also scheduled it for deprecation in favor of to!(double) and parse!(double) (or real).

* Made cmp and icmp work with strings of all widths

* Changed signature of toStringz to return const(char)*

* Fixed signature of join so it works with immutable arrays

* Added tolowerInPlace, toupperInPlace (these may be changed or removed).

Files:

trunk/phobos/std/file.d (modified) (43 diffs)

Legend:

: Unmodified
: Added
: Removed
: Modified
: Copied
: Moved

trunk/phobos/std/file.d

r589	r683
46	46	private import std.c.string;
47	47	private import std.traits;
48		import std.conv;
49		private import std.stdio; // for testing only
	48	private import std.conv;
	49	private import std.contracts;
	50	private import std.utf;
	51	version (unittest) {
	52	private import std.stdio; // for testing only
	53	}
50	54
51	55	/* =========================== Win32 ======================= */
…	…
60	64	private import std.date;
61	65
62		~~int useWfuncs = 1~~;
	66	enum useWfuncs = true;
63	67
64	68	static this()
…	…
74	78	class FileException : Exception
75	79	{
76
77	80	uint errno; // operating system error code
78	81
…	…
99	102
100	103	/********************************************
101		* Read file ~~name[]~~, return array of bytes read.
102		* ~~Throws:~~
103		* ~~FileException~~ on error.
	104	* Read file $(D name), return array of bytes read.
	105	*
	106	* Throws: $(D FileException) on error.
104	107	*/
105	108
…	…
154	157	/*********************************************
155	158	* Write buffer[] to file name[].
156		* Throws: ~~FileException~~ on error.
	159	* Throws: $(D FileException) on error.
157	160	*/
158	161
…	…
196	199	/*********************************************
197	200	* Append buffer[] to file name[].
198		* Throws: ~~FileException~~ on error.
	201	* Throws: $(D FileException) on error.
199	202	*/
200	203
…	…
240	243	/***************************************************
241	244	* Rename file from[] to to[].
242		* Throws: ~~FileException~~ on error.
	245	* Throws: $(D FileException) on error.
243	246	*/
244	247
245	248	void rename(in string from, in string to)
246	249	{
247		BOOL result;
	250	BOOL result = void;
248	251
249	252	if (useWfuncs)
…	…
258	261	/***************************************************
259	262	* Delete file name[].
260		* Throws: ~~FileException~~ on error.
	263	* Throws: $(D FileException) on error.
261	264	*/
262	265
263	266	void remove(in string name)
264	267	{
265		BOOL result;
	268	BOOL result = void;
266	269
267	270	if (useWfuncs)
…	…
276	279	/***************************************************
277	280	* Get size of file name[].
278		* Throws: ~~FileException~~ on error.
	281	* Throws: $(D FileException) on error.
279	282	*/
280	283
…	…
311	314
312	315	/*************************
313		* Get creation/access/modified times of file ~~name[]~~.
314		* Throws: ~~FileException~~ on error.
	316	* Get creation/access/modified times of file $(D name).
	317	* Throws: $(D FileException) on error.
315	318	*/
316	319
…	…
351	354	*/
352	355
353		~~int exists(~~string name)
	356	bool exists(in string name)
354	357	{
355	358	uint result;
…	…
361	364	result = GetFileAttributesA(toMBSz(name));
362	365
363		return ~~(result == 0xFFFFFFFF) ? 0 : 1~~;
	366	return result == 0xFFFFFFFF;
364	367	}
365	368
366	369	/***************************************************
367	370	* Get file name[] attributes.
368		* Throws: ~~FileException~~ on error.
	371	* Throws: $(D FileException) on error.
369	372	*/
370	373
…	…
386	389	/****************************************************
387	390	* Is name[] a file?
388		* Throws: ~~FileException~~ if name[] doesn't exist.
389		*/
390
391		~~int~~ isfile(in string name)
	391	* Throws: $(D FileException) if name[] doesn't exist.
	392	*/
	393
	394	bool isfile(in string name)
392	395	{
393	396	return (getAttributes(name) & FILE_ATTRIBUTE_DIRECTORY) == 0;
…	…
396	399	/****************************************************
397	400	* Is name[] a directory?
398		* Throws: ~~FileException~~ if name[] doesn't exist.
399		*/
400
401		~~int~~ isdir(in string name)
	401	* Throws: $(D FileException) if name[] doesn't exist.
	402	*/
	403
	404	bool isdir(in string name)
402	405	{
403	406	return (getAttributes(name) & FILE_ATTRIBUTE_DIRECTORY) != 0;
…	…
406	409	/****************************************************
407	410	* Change directory to pathname[].
408		* Throws: ~~FileException~~ on error.
	411	* Throws: $(D FileException) on error.
409	412	*/
410	413
…	…
425	428	/****************************************************
426	429	* Make directory pathname[].
427		* Throws: ~~FileException~~ on error.
	430	* Throws: $(D FileException) on error.
428	431	*/
429	432
430	433	void mkdir(in string pathname)
431		{ BOOL result;
	434	{ BOOL result = void;
432	435
433	436	if (useWfuncs)
…	…
444	447	/****************************************************
445	448	* Remove directory pathname[].
446		* Throws: ~~FileException~~ on error.
	449	* Throws: $(D FileException) on error.
447	450	*/
448	451
449	452	void rmdir(in string pathname)
450		{ BOOL result;
	453	{ BOOL result = void;
451	454
452	455	if (useWfuncs)
…	…
463	466	/****************************************************
464	467	* Get current directory.
465		* Throws: ~~FileException~~ on error.
	468	* Throws: $(D FileException) on error.
466	469	*/
467	470
…	…
569	572	* Return contents of directory pathname[].
570	573	* The names in the contents do not include the pathname.
571		* Throws: ~~FileException~~ on error
	574	* Throws: $(D FileException) on error
572	575	* Example:
573	576	* This program lists all the files and subdirectories in its
…	…
850	853	void copy(in string from, in string to)
851	854	{
852		BOOL result;
853
854		if (useWfuncs)
855		result = CopyFileW(std.utf.toUTF16z(from), std.utf.toUTF16z(to), false);
856		else
857		result = CopyFileA(toMBSz(from), toMBSz(to), false);
	855	invariant result = useWfuncs
	856	? CopyFileW(std.utf.toUTF16z(from), std.utf.toUTF16z(to), false)
	857	: CopyFileA(toMBSz(from), toMBSz(to), false);
858	858	if (!result)
859		throw new FileException(to, GetLastError());
	859	throw new FileException(to, GetLastError);
860	860	}
861	861
…	…
876	876	class FileException : Exception
877	877	{
878
879	878	uint errno; // operating system error code
880	879
…	…
890	889
891	890	this(string name, uint errno)
892		{ char[80] buf = void;
	891	{
	892	char[1024] buf = void;
893	893	auto s = strerror_r(errno, buf.ptr, buf.length);
894		this(name, std.string.toString(s)~~.idup~~);
	894	this(name, std.string.toString(s));
895	895	this.errno = errno;
896	896	}
897	897	}
	898
	899	private T cenforce(T)(T condition, lazy string name)
	900	{
	901	if (!condition) throw new FileException(name, getErrno);
	902	return condition;
	903	}
	904
898	905
899	906	/********************************************
…	…
903	910	*/
904	911
905		void[] read(in string name)
906		{
907		uint numread;
908		struct_stat statbuf;
909
910		auto namez = toStringz(name);
911		//printf("file.read('%s')\n",namez);
912		auto fd = std.c.linux.linux.open(namez, O_RDONLY);
913		if (fd == -1)
914		{
915		//printf("\topen error, errno = %d\n",getErrno());
916		goto err1;
917		}
918
919		//printf("\tfile opened\n");
920		if (std.c.linux.linux.fstat(fd, &statbuf))
921		{
922		//printf("\tfstat error, errno = %d\n",getErrno());
923		goto err2;
924		}
925		auto size = statbuf.st_size;
	912	void[] read(string name)
	913	{
	914	invariant fd = std.c.linux.linux.open(toStringz(name), O_RDONLY);
	915	cenforce(fd != -1, name);
	916	scope(exit) std.c.linux.linux.close(fd);
	917
	918	struct_stat statbuf = void;
	919	cenforce(std.c.linux.linux.fstat(fd, &statbuf) == 0, name);
	920	invariant size = statbuf.st_size;
	921	if (!size) return null;
926	922	auto buf = std.gc.malloc(size);
927		if (buf.ptr)
928		std.gc.hasNoPointers(buf.ptr);
929
930		numread = std.c.linux.linux.read(fd, buf.ptr, size);
931		if (numread != size)
932		{
933		//printf("\tread error, errno = %d\n",getErrno());
934		goto err2;
935		}
936
937		if (std.c.linux.linux.close(fd) == -1)
938		{
939		//printf("\tclose error, errno = %d\n",getErrno());
940		goto err;
941		}
	923	enforce(buf, "Out of memory");
	924	scope(failure) delete buf;
	925	std.gc.hasNoPointers(buf.ptr);
	926
	927	cenforce(std.c.linux.linux.read(fd, buf.ptr, size) == size, name);
942	928
943	929	return buf[0 .. size];
944
945		err2:
946		std.c.linux.linux.close(fd);
947		err:
948		delete buf;
949
950		err1:
951		throw new FileException(name.idup, getErrno());
952		}
	930	}
	931
	932	/********************************************
	933	* Read and validates (using $(XREF utf, validate)) a text file. $(D
	934	* S) can be a type of array of characters of any width and constancy.
	935	*
	936	* Returns: array of characters read
	937	*
	938	* Throws: $(D FileException) on file error, $(D UtfException) on UTF
	939	* decoding error.
	940	*
	941	*/
	942
	943	S readText(S)(in string name)
	944	{
	945	auto result = cast(S) read(name);
	946	std.utf.validate(result);
	947	return result;
	948	}
	949
	950	// Implementation helper for write and append
	951
	952	private void writeImpl(in string name, in void[] buffer, in uint mode)
	953	{
	954	invariant fd = std.c.linux.linux.open(toStringz(name),
	955	mode, 0660);
	956	cenforce(fd != -1, name);
	957	{
	958	scope(failure) std.c.linux.linux.close(fd);
	959	invariant size = buffer.length;
	960	cenforce(std.c.linux.linux.write(fd, buffer.ptr, size) == size, name);
	961	}
	962	cenforce(std.c.linux.linux.close(fd) == 0, name);
	963	}
	964
953	965
954	966	/*********************************************
955	967	* Write a file.
956		* Returns:
957		* 0 success
958	968	*/
959	969
960	970	void write(in string name, in void[] buffer)
961	971	{
962		int fd;
963		int numwritten;
964
965		auto namez = toStringz(name);
966		fd = std.c.linux.linux.open(namez, O_CREAT \| O_WRONLY \| O_TRUNC, 0660);
967		if (fd == -1)
968		goto err;
969
970		numwritten = std.c.linux.linux.write(fd, buffer.ptr, buffer.length);
971		if (buffer.length != numwritten)
972		goto err2;
973
974		if (std.c.linux.linux.close(fd) == -1)
975		goto err;
976
977		return;
978
979		err2:
980		std.c.linux.linux.close(fd);
981		err:
982		throw new FileException(name.idup, getErrno());
983		}
984
	972	return writeImpl(name, buffer, O_CREAT \| O_WRONLY \| O_TRUNC);
	973	}
985	974
986	975	/*********************************************
…	…
990	979	void append(in string name, in void[] buffer)
991	980	{
992		int fd;
993		int numwritten;
994		char *namez;
995
996		namez = toStringz(name);
997		fd = std.c.linux.linux.open(namez, O_APPEND \| O_WRONLY \| O_CREAT, 0660);
998		if (fd == -1)
999		goto err;
1000
1001		numwritten = std.c.linux.linux.write(fd, buffer.ptr, buffer.length);
1002		if (buffer.length != numwritten)
1003		goto err2;
1004
1005		if (std.c.linux.linux.close(fd) == -1)
1006		goto err;
1007
1008		return;
1009
1010		err2:
1011		std.c.linux.linux.close(fd);
1012		err:
1013		throw new FileException(name.idup, getErrno());
1014		}
1015
	981	return writeImpl(name, buffer, O_APPEND \| O_WRONLY \| O_CREAT);
	982	}
1016	983
1017	984	/***************************************************
…	…
1021	988	void rename(in string from, in string to)
1022	989	{
1023		char *fromz = toStringz(from);
1024		char *toz = toStringz(to);
1025
1026		if (std.c.stdio.rename(fromz, toz) == -1)
1027		throw new FileException(to.idup, getErrno());
1028		}
1029
	990	cenforce(std.c.stdio.rename(toStringz(from), toStringz(to)) == -1, to);
	991	}
1030	992
1031	993	/***************************************************
…	…
1035	997	void remove(in string name)
1036	998	{
1037		if (std.c.stdio.remove(toStringz(name)) == -1)
1038		throw new FileException(name.idup, getErrno());
	999	cenforce(std.c.stdio.remove(toStringz(name)) != -1, name);
1039	1000	}
1040	1001
…	…
1046	1007	ulong getSize(in string name)
1047	1008	{
1048		struct_stat statbuf;
1049		if (std.c.linux.linux.stat(toStringz(name), &statbuf))
1050		{
1051		throw new FileException(name, getErrno());
1052		}
	1009	struct_stat statbuf = void;
	1010	cenforce(std.c.linux.linux.stat(toStringz(name), &statbuf) == 0, name);
1053	1011	return statbuf.st_size;
1054	1012	}
…	…
1071	1029	uint getAttributes(in string name)
1072	1030	{
1073		struct_stat statbuf;
1074
1075		auto namez = toStringz(name);
1076		if (std.c.linux.linux.stat(namez, &statbuf))
1077		{
1078		throw new FileException(name.idup, getErrno());
1079		}
1080
	1031	struct_stat statbuf = void;
	1032	cenforce(std.c.linux.linux.stat(toStringz(name), &statbuf) == 0, name);
1081	1033	return statbuf.st_mode;
1082	1034	}
1083	1035
1084	1036	/*************************
1085		* Get creation/access/modified times of file ~~name[]~~.
1086		* Throws: ~~FileException~~ on error.
	1037	* Get creation/access/modified times of file $(D name).
	1038	* Throws: $(D FileException) on error.
1087	1039	*/
1088	1040
1089	1041	void getTimes(in string name, out d_time ftc, out d_time fta, out d_time ftm)
1090	1042	{
1091		struct_stat statbuf;
1092		char *namez;
1093
1094		namez = toStringz(name);
1095		if (std.c.linux.linux.stat(namez, &statbuf))
1096		{
1097		throw new FileException(name.idup, getErrno());
1098		}
1099
1100		ftc = cast(d_time)statbuf.st_ctime * std.date.TicksPerSecond;
1101		fta = cast(d_time)statbuf.st_atime * std.date.TicksPerSecond;
1102		ftm = cast(d_time)statbuf.st_mtime * std.date.TicksPerSecond;
1103		}
1104
	1043	struct_stat statbuf = void;
	1044	cenforce(std.c.linux.linux.stat(toStringz(name), &statbuf) == 0, name);
	1045	ftc = cast(d_time) statbuf.st_ctime * std.date.TicksPerSecond;
	1046	fta = cast(d_time) statbuf.st_atime * std.date.TicksPerSecond;
	1047	ftm = cast(d_time) statbuf.st_mtime * std.date.TicksPerSecond;
	1048	}
	1049
	1050	/*************************
	1051	* Set access/modified times of file $(D name).
	1052	* Throws: $(D FileException) on error.
	1053	*/
	1054
	1055	void setTimes(in string name, d_time fta, d_time ftm)
	1056	{
	1057	version (linux)
	1058	{
	1059	// utimbuf times = {
	1060	// cast(__time_t) (fta / std.date.TicksPerSecond),
	1061	// cast(__time_t) (ftm / std.date.TicksPerSecond) };
	1062	// enforce(utime(toStringz(name), &times) == 0);
	1063	timeval[2] t = void;
	1064	t[0].tv_sec = fta / std.date.TicksPerSecond;
	1065	t[0].tv_usec = cast(long) ((cast(double) fta / std.date.TicksPerSecond)
	1066	* 1_000_000) % 1_000_000;
	1067	t[1].tv_sec = ftm / std.date.TicksPerSecond;
	1068	t[1].tv_usec = cast(long) ((cast(double) ftm / std.date.TicksPerSecond)
	1069	* 1_000_000) % 1_000_000;
	1070	enforce(utimes(toStringz(name), t.ptr) == 0);
	1071	}
	1072	else
	1073	{
	1074	if (true) enforce(false, "Not implemented");
	1075	}
	1076	}
	1077
	1078	unittest
	1079	{
	1080	system("touch deleteme") == 0 \|\| assert(false);
	1081	scope(exit) remove("deleteme");
	1082	d_time ftc1, fta1, ftm1;
	1083	getTimes("deleteme", ftc1, fta1, ftm1);
	1084	setTimes("deleteme", fta1 + 1000, ftm1 + 1000);
	1085	d_time ftc2, fta2, ftm2;
	1086	getTimes("deleteme", ftc2, fta2, ftm2);
	1087	assert(fta1 + 1000 == fta2);
	1088	assert(ftm1 + 1000 == ftm2);
	1089	}
	1090
	1091	/**
	1092	Returns the time of the last modification of file $(D name). If the
	1093	file does not exist, throws a $(D FileException).
	1094	*/
	1095
	1096	d_time lastModified(in string name)
	1097	{
	1098	struct_stat statbuf = void;
	1099	cenforce(std.c.linux.linux.stat(toStringz(name), &statbuf) == 0, name);
	1100	return cast(d_time) statbuf.st_mtime * std.date.TicksPerSecond;
	1101	}
	1102
	1103	/**
	1104	Returns the time of the last modification of file $(D name). If the
	1105	file does not exist, returns $(D returnIfMissing).
	1106
	1107	A frequent usage pattern occurs in build automation tools such as
	1108	$(WEB www.gnu.org/software/make, make) or $(WEB
	1109	en.wikipedia.org/wiki/Apache_Ant, ant). To check whether file $(D
	1110	target) must be rebuilt from file $(D source) (i.e., $(D target) is
	1111	older than $(D source) or does not exist), use the comparison below.
	1112
	1113	----------------------------
	1114	if (lastModified(source) >= lastModified(target, d_time.min))
	1115	{
	1116	... must (re)build ...
	1117	}
	1118	else
	1119	{
	1120	... target's up-to-date ...
	1121	}
	1122	----------------------------
	1123
	1124	The code above throws a $(D FileException) if $(D source) does not
	1125	exist (as it should). On the other hand, the $(D d_time.min) default
	1126	makes a non-existing $(D target) seem infinitely old so the test
	1127	correctly prompts building it.
	1128
	1129	*/
	1130
	1131	d_time lastModified(string name, d_time returnIfMissing)
	1132	{
	1133	struct_stat statbuf = void;
	1134	return std.c.linux.linux.stat(toStringz(name), &statbuf) != 0
	1135	? returnIfMissing
	1136	: cast(d_time) statbuf.st_mtime * std.date.TicksPerSecond;
	1137	}
	1138
	1139	unittest
	1140	{
	1141	system("touch deleteme") == 0 \|\| assert(false);
	1142	scope(exit) remove("deleteme");
	1143	assert(lastModified("deleteme") >
	1144	lastModified("this file does not exist", d_time.min));
	1145	assert(lastModified("deleteme") > lastModified(__FILE__));
	1146	}
1105	1147
1106	1148	/****************************************************
…	…
1108	1150	*/
1109	1151
1110		int exists(in string name)
1111		{
1112		return access(toStringz(name),0) == 0;
1113
1114		/+
1115		struct_stat statbuf;
1116		char *namez;
1117
1118		namez = toStringz(name);
1119		if (std.c.linux.linux.stat(namez, &statbuf))
1120		{
1121		return 0;
1122		}
1123		return 1;
1124		+/
	1152	bool exists(in string name)
	1153	{
	1154	return access(toStringz(name), 0) == 0;
1125	1155	}
1126	1156
…	…
1128	1158	{
1129	1159	assert(exists("."));
	1160	assert(!exists("this file does not exist"));
	1161	system("touch deleteme") == 0 \|\| assert(false);
	1162	scope(exit) remove("deleteme");
	1163	assert(exists("deleteme"));
1130	1164	}
1131	1165
…	…
1134	1168	*/
1135	1169
1136		~~int~~ isfile(in string name)
	1170	bool isfile(in string name)
1137	1171	{
1138	1172	return (getAttributes(name) & S_IFMT) == S_IFREG; // regular file
…	…
1143	1177	*/
1144	1178
1145		~~int isdir(~~string name)
	1179	bool isdir(in string name)
1146	1180	{
1147	1181	return (getAttributes(name) & S_IFMT) == S_IFDIR;
…	…
1154	1188	void chdir(string pathname)
1155	1189	{
1156		if (std.c.linux.linux.chdir(toStringz(pathname)))
1157		{
1158		throw new FileException(pathname, getErrno());
1159		}
	1190	cenforce(std.c.linux.linux.chdir(toStringz(pathname)) == 0, pathname);
1160	1191	}
1161	1192
…	…
1166	1197	void mkdir(string pathname)
1167	1198	{
1168		if (std.c.linux.linux.mkdir(toStringz(pathname), 0777))
1169		{
1170		throw new FileException(pathname, getErrno());
1171		}
	1199	cenforce(std.c.linux.linux.mkdir(toStringz(pathname), 0777) == 0, pathname);
1172	1200	}
1173	1201
…	…
1178	1206	void rmdir(string pathname)
1179	1207	{
1180		if (std.c.linux.linux.rmdir(toStringz(pathname)))
1181		{
1182		throw new FileException(pathname, getErrno());
1183		}
	1208	cenforce(std.c.linux.linux.rmdir(toStringz(pathname)) == 0, pathname);
1184	1209	}
1185	1210
…	…
1190	1215	string getcwd()
1191	1216	{
1192		auto p = std.c.linux.linux.getcwd(null, 0);
1193		if (!p)
1194		{
1195		throw new FileException("cannot get cwd", getErrno());
1196		}
	1217	auto p = cenforce(std.c.linux.linux.getcwd(null, 0),
	1218	"cannot get cwd");
1197	1219	scope(exit) std.c.stdlib.free(p);
1198		auto len = std.string.strlen(p);
1199		return p[0 .. len].idup;
	1220	return p[0 .. std.string.strlen(p)].idup;
1200	1221	}
1201	1222
…	…
1212	1233	d_time _lastWriteTime = d_time_nan; // time file was last written to
1213	1234	ubyte d_type;
1214		ubyte didstat; // done lazy evaluation of stat()
	1235	struct_stat statbuf;
	1236	bool didstat; // done lazy evaluation of stat()
1215	1237
1216	1238	void init(string path, dirent *fd)
1217		{ size_t len = std.string.strlen(fd.d_name.ptr);
	1239	{
	1240	invariant len = std.string.strlen(fd.d_name.ptr);
1218	1241	name = std.path.join(path, fd.d_name[0 .. len].idup);
1219	1242	d_type = fd.d_type;
1220		didstat = 0;
1221		}
1222
1223		~~int~~ isdir()
1224		{
1225		return ~~d_type & DT_DIR~~;
1226		}
1227
1228		~~int~~ isfile()
1229		{
1230		return ~~d_type & DT_REG~~;
	1243	didstat = false;
	1244	}
	1245
	1246	bool isdir()
	1247	{
	1248	return (d_type & DT_DIR) != 0;
	1249	}
	1250
	1251	bool isfile()
	1252	{
	1253	return (d_type & DT_REG) != 0;
1231	1254	}
1232	1255
1233	1256	ulong size()
1234	1257	{
1235		if (!didstat)
1236		doStat();
	1258	ensureStatDone;
1237	1259	return _size;
1238	1260	}
…	…
1240	1262	d_time creationTime()
1241	1263	{
1242		if (!didstat)
1243		doStat();
	1264	ensureStatDone;
1244	1265	return _creationTime;
1245	1266	}
…	…
1247	1268	d_time lastAccessTime()
1248	1269	{
1249		if (!didstat)
1250		doStat();
	1270	ensureStatDone;
1251	1271	return _lastAccessTime;
1252	1272	}
…	…
1254	1274	d_time lastWriteTime()
1255	1275	{
1256		if (!didstat)
1257		doStat();
	1276	ensureStatDone;
1258	1277	return _lastWriteTime;
1259	1278	}
…	…
1263	1282	*/
1264	1283
1265		void doStat()
1266		{
1267		int fd;
1268		struct_stat statbuf;
1269
1270		auto namez = toStringz(name);
1271		if (std.c.linux.linux.stat(namez, &statbuf))
1272		{
1273		//printf("\tstat error, errno = %d\n",getErrno());
1274		return;
1275		}
	1284	void ensureStatDone()
	1285	{
	1286	if (didstat) return;
	1287	enforce(std.c.linux.linux.stat(toStringz(name), &statbuf) == 0,
	1288	"Failed to stat file `"~name~"'");
1276	1289	_size = statbuf.st_size;
1277	1290	_creationTime = cast(d_time)statbuf.st_ctime * std.date.TicksPerSecond;
1278	1291	_lastAccessTime = cast(d_time)statbuf.st_atime * std.date.TicksPerSecond;
1279	1292	_lastWriteTime = cast(d_time)statbuf.st_mtime * std.date.TicksPerSecond;
1280
1281		didstat = 1;
	1293	didstat = true;
1282	1294	}
1283	1295	}
…	…
1350	1362	void listdir(string pathname, bool delegate(DirEntry* de) callback)
1351	1363	{
1352		~~DIR* h~~;
1353		~~dirent* fdata~~;
	1364	auto h = cenforce(opendir(toStringz(pathname)), pathname);
	1365	scope(exit) closedir(h);
1354	1366	DirEntry de;
1355
1356		h = opendir(toStringz(pathname));
1357		if (h)
1358		{
1359		try
1360		{
1361		while((fdata = readdir(h)) != null)
1362		{
1363		// Skip "." and ".."
1364		if (!std.string.strcmp(fdata.d_name.ptr, ".") \|\|
1365		!std.string.strcmp(fdata.d_name.ptr, ".."))
1366		continue;
1367
1368		de.init(pathname, fdata);
1369		if (!callback(&de))
1370		break;
1371		}
1372		}
1373		finally
1374		{
1375		closedir(h);
1376		}
1377		}
1378		else
1379		{
1380		throw new FileException(pathname, getErrno());
1381		}
1382		}
1383
	1367	for (dirent* fdata; (fdata = readdir(h)) != null; )
	1368	{
	1369	// Skip "." and ".."
	1370	if (!std.string.strcmp(fdata.d_name.ptr, ".") \|\|
	1371	!std.string.strcmp(fdata.d_name.ptr, ".."))
	1372	continue;
	1373	de.init(pathname, fdata);
	1374	if (!callback(&de))
	1375	break;
	1376	}
	1377	}
1384	1378
1385	1379	/***************************************************
…	…
1389	1383	void copy(in string from, in string to)
1390	1384	{
1391		version (all)
1392		{
1393		struct_stat statbuf;
1394
1395		char* fromz = toStringz(from);
1396		char* toz = toStringz(to);
1397		//printf("file.copy(from='%s', to='%s')\n", fromz, toz);
1398
1399		int fd = std.c.linux.linux.open(fromz, O_RDONLY);
1400		if (fd == -1)
1401		{
1402		//printf("\topen error, errno = %d\n",getErrno());
1403		goto err1;
1404		}
1405
1406		//printf("\tfile opened\n");
1407		if (std.c.linux.linux.fstat(fd, &statbuf))
1408		{
1409		//printf("\tfstat error, errno = %d\n",getErrno());
1410		goto err2;
1411		}
1412
1413		int fdw = std.c.linux.linux.open(toz, O_CREAT \| O_WRONLY \| O_TRUNC, 0660);
1414		if (fdw == -1)
1415		{
1416		//printf("\topen error, errno = %d\n",getErrno());
1417		goto err2;
1418		}
1419
1420		size_t BUFSIZ = 4096 * 16;
1421		void* buf = std.c.stdlib.malloc(BUFSIZ);
1422		if (!buf)
1423		{ BUFSIZ = 4096;
1424		buf = std.c.stdlib.malloc(BUFSIZ);
1425		}
1426		if (!buf)
1427		{
1428		//printf("\topen error, errno = %d\n",getErrno());
1429		goto err4;
1430		}
1431
1432		for (size_t size = statbuf.st_size; size; )
1433		{ size_t toread = (size > BUFSIZ) ? BUFSIZ : size;
1434
1435		auto n = std.c.linux.linux.read(fd, buf, toread);
1436		if (n != toread)
1437		{
1438		//printf("\tread error, errno = %d\n",getErrno());
1439		goto err5;
1440		}
1441		n = std.c.linux.linux.write(fdw, buf, toread);
1442		if (n != toread)
1443		{
1444		//printf("\twrite error, errno = %d\n",getErrno());
1445		goto err5;
1446		}
1447		size -= toread;
1448		}
1449
1450		std.c.stdlib.free(buf);
1451
1452		if (std.c.linux.linux.close(fdw) == -1)
1453		{
1454		//printf("\tclose error, errno = %d\n",getErrno());
1455		goto err2;
1456		}
1457
1458		utimbuf utim;
1459		utim.actime = cast(__time_t)statbuf.st_atime;
1460		utim.modtime = cast(__time_t)statbuf.st_mtime;
1461		if (utime(toz, &utim) == -1)
1462		{
1463		//printf("\tutime error, errno = %d\n",getErrno());
1464		goto err3;
1465		}
1466
1467		if (std.c.linux.linux.close(fd) == -1)
1468		{
1469		//printf("\tclose error, errno = %d\n",getErrno());
1470		goto err1;
1471		}
1472
1473		return;
1474
1475		err5:
1476		std.c.stdlib.free(buf);
1477		err4:
1478		std.c.linux.linux.close(fdw);
1479		err3:
1480		std.c.stdio.remove(toz);
1481		err2:
1482		std.c.linux.linux.close(fd);
1483		err1:
1484		throw new FileException(from.idup, getErrno());
1485		}
1486		else
1487		{
1488		void[] buffer;
1489
1490		buffer = read(from);
1491		write(to, buffer);
1492		delete buffer;
1493		}
	1385	version (all)
	1386	{
	1387	invariant fd = std.c.linux.linux.open(toStringz(from), O_RDONLY);
	1388	cenforce(fd != -1, from);
	1389	scope(exit) std.c.linux.linux.close(fd);
	1390
	1391	struct_stat statbuf = void;
	1392	cenforce(std.c.linux.linux.fstat(fd, &statbuf) == 0, from);
	1393
	1394	auto toz = toStringz(to);
	1395	invariant fdw = std.c.linux.linux.open(toz,
	1396	O_CREAT \| O_WRONLY \| O_TRUNC, 0660);
	1397	cenforce(fdw != -1, from);
	1398	scope(failure) std.c.stdio.remove(toz);
	1399	{
	1400	scope(failure) std.c.linux.linux.close(fdw);
	1401	auto BUFSIZ = 4096u * 16;
	1402	auto buf = std.c.stdlib.malloc(BUFSIZ);
	1403	if (!buf)
	1404	{
	1405	BUFSIZ = 4096;
	1406	buf = enforce(std.c.stdlib.malloc(BUFSIZ), "Out of memory");
	1407	}
	1408	scope(exit) std.c.stdlib.free(buf);
	1409
	1410	for (size_t size = statbuf.st_size; size; )
	1411	{
	1412	invariant toxfer = (size > BUFSIZ) ? BUFSIZ : size;
	1413	cenforce(std.c.linux.linux.read(fd, buf, toxfer) == toxfer
	1414	&& std.c.linux.linux.write(fdw, buf, toxfer) == toxfer,
	1415	from);
	1416	assert(size >= toxfer);
	1417	size -= toxfer;
	1418	}
	1419	}
	1420
	1421	cenforce(std.c.linux.linux.close(fdw) != -1, from);
	1422
	1423	utimbuf utim = void;
	1424	utim.actime = cast(__time_t) statbuf.st_atime;
	1425	utim.modtime = cast(__time_t) statbuf.st_mtime;
	1426	cenforce(utime(toz, &utim) != -1, from);
	1427	}
	1428	else
	1429	{
	1430	void[] buffer;
	1431
	1432	buffer = read(from);
	1433	write(to, buffer);
	1434	delete buffer;
	1435	}
1494	1436	}
1495	1437

phobos

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Changeset 683

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trunk/phobos/std/file.d

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