diff options
Diffstat (limited to 'libphobos/src/std/mmfile.d')
| -rw-r--r-- | libphobos/src/std/mmfile.d | 146 |
1 files changed, 122 insertions, 24 deletions
diff --git a/libphobos/src/std/mmfile.d b/libphobos/src/std/mmfile.d index 453e2ec..e4000d4 100644 --- a/libphobos/src/std/mmfile.d +++ b/libphobos/src/std/mmfile.d @@ -2,15 +2,15 @@ /** * Read and write memory mapped files. - * Copyright: Copyright Digital Mars 2004 - 2009. + * Copyright: Copyright The D Language Foundation 2004 - 2009. * License: $(HTTP www.boost.org/LICENSE_1_0.txt, Boost License 1.0). * Authors: $(HTTP digitalmars.com, Walter Bright), * Matthew Wilson - * Source: $(PHOBOSSRC std/_mmfile.d) + * Source: $(PHOBOSSRC std/mmfile.d) * * $(SCRIPT inhibitQuickIndex = 1;) */ -/* Copyright Digital Mars 2004 - 2009. +/* Copyright The D Language Foundation 2004 - 2009. * Distributed under the Boost Software License, Version 1.0. * (See accompanying file LICENSE_1_0.txt or copy at * http://www.boost.org/LICENSE_1_0.txt) @@ -31,7 +31,8 @@ import std.internal.cstring; version (Windows) { - import core.sys.windows.windows; + import core.sys.windows.winbase; + import core.sys.windows.winnt; import std.utf; import std.windows.syserror; } @@ -67,7 +68,8 @@ class MmFile * Open memory mapped file filename for reading. * File is closed when the object instance is deleted. * Throws: - * std.file.FileException + * - On POSIX, $(REF ErrnoException, std, exception). + * - On Windows, $(REF WindowsException, std, windows, syserror). */ this(string filename) { @@ -88,7 +90,7 @@ class MmFile int oflag; int fmode; - switch (mode) + final switch (mode) { case Mode.read: flags = MAP_SHARED; @@ -118,9 +120,6 @@ class MmFile oflag = O_RDWR; fmode = 0; break; - - default: - assert(0); } fd = fildes; @@ -166,7 +165,8 @@ class MmFile * with 0 meaning map the entire file. The window size must be a * multiple of the memory allocation page size. * Throws: - * std.file.FileException + * - On POSIX, $(REF ErrnoException, std, exception). + * - On Windows, $(REF WindowsException, std, windows, syserror). */ this(string filename, Mode mode, ulong size, void* address, size_t window = 0) @@ -184,7 +184,7 @@ class MmFile uint dwCreationDisposition; uint flProtect; - switch (mode) + final switch (mode) { case Mode.read: dwDesiredAccess2 = GENERIC_READ; @@ -218,9 +218,6 @@ class MmFile flProtect = PAGE_WRITECOPY; dwDesiredAccess = FILE_MAP_COPY; break; - - default: - assert(0); } if (filename != null) @@ -281,7 +278,7 @@ class MmFile int oflag; int fmode; - switch (mode) + final switch (mode) { case Mode.read: flags = MAP_SHARED; @@ -311,9 +308,6 @@ class MmFile oflag = O_RDWR; fmode = 0; break; - - default: - assert(0); } if (filename.length) @@ -343,7 +337,6 @@ class MmFile else { fd = -1; - version (CRuntime_Glibc) import core.sys.linux.sys.mman : MAP_ANON; flags |= MAP_ANON; } this.size = size; @@ -440,6 +433,11 @@ class MmFile } /** + * Forwards `length`. + */ + alias opDollar = length; + + /** * Read-only property returning the file mode. */ Mode mode() @@ -648,9 +646,10 @@ private: win = sysinfo.dwAllocationGranularity; +/ } - else version (linux) + else version (Posix) { - // getpagesize() is not defined in the unix D headers so use the guess + import core.sys.posix.unistd; + win = cast(size_t) sysconf(_SC_PAGESIZE); } string test_file = std.file.deleteme ~ "-testing.txt"; MmFile mf = new MmFile(test_file,MmFile.Mode.readWriteNew, @@ -671,7 +670,6 @@ private: assert( data2[$-1] == 'b' ); destroy(mf); - GC.free(&mf); std.file.remove(test_file); // Create anonymous mapping @@ -679,7 +677,7 @@ private: } version (linux) -@system unittest // Issue 14868 +@system unittest // https://issues.dlang.org/show_bug.cgi?id=14868 { import std.file : deleteme; import std.typecons : scoped; @@ -702,7 +700,9 @@ version (linux) assert(.close(fd) == -1); } -@system unittest // Issue 14994, 14995 +// https://issues.dlang.org/show_bug.cgi?id=14994 +// https://issues.dlang.org/show_bug.cgi?id=14995 +@system unittest { import std.file : deleteme; import std.typecons : scoped; @@ -719,3 +719,101 @@ version (linux) scope(exit) std.file.remove(fn); verifyThrown(scoped!MmFile(fn, MmFile.Mode.readWrite, 0, null)); } + +@system unittest +{ + MmFile shar = new MmFile(null, MmFile.Mode.readWrite, 10, null, 0); + void[] output = shar[0 .. $]; +} + +@system unittest +{ + import std.file : deleteme; + auto name = std.file.deleteme ~ "-test.tmp"; + scope(exit) std.file.remove(name); + + std.file.write(name, "abcd"); + { + scope MmFile mmf = new MmFile(name); + string p; + + assert(mmf[0] == 'a'); + p = cast(string) mmf[]; + assert(p[1] == 'b'); + p = cast(string) mmf[0 .. 4]; + assert(p[2] == 'c'); + } + { + scope MmFile mmf = new MmFile(name, MmFile.Mode.read, 0, null); + string p; + + assert(mmf[0] == 'a'); + p = cast(string) mmf[]; + assert(mmf.length == 4); + assert(p[1] == 'b'); + p = cast(string) mmf[0 .. 4]; + assert(p[2] == 'c'); + } + std.file.remove(name); + { + scope MmFile mmf = new MmFile(name, MmFile.Mode.readWriteNew, 4, null); + char[] p = cast(char[]) mmf[]; + p[] = "1234"; + mmf[3] = '5'; + assert(mmf[2] == '3'); + assert(mmf[3] == '5'); + } + { + string p = cast(string) std.file.read(name); + assert(p[] == "1235"); + } + { + scope MmFile mmf = new MmFile(name, MmFile.Mode.readWriteNew, 4, null); + char[] p = cast(char[]) mmf[]; + p[] = "5678"; + mmf[3] = '5'; + assert(mmf[2] == '7'); + assert(mmf[3] == '5'); + assert(cast(string) mmf[] == "5675"); + } + { + string p = cast(string) std.file.read(name); + assert(p[] == "5675"); + } + { + scope MmFile mmf = new MmFile(name, MmFile.Mode.readWrite, 4, null); + char[] p = cast(char[]) mmf[]; + assert(cast(char[]) mmf[] == "5675"); + p[] = "9102"; + mmf[2] = '5'; + assert(cast(string) mmf[] == "9152"); + } + { + string p = cast(string) std.file.read(name); + assert(p[] == "9152"); + } + std.file.remove(name); + { + scope MmFile mmf = new MmFile(name, MmFile.Mode.readWrite, 4, null); + char[] p = cast(char[]) mmf[]; + p[] = "abcd"; + mmf[2] = '5'; + assert(cast(string) mmf[] == "ab5d"); + } + { + string p = cast(string) std.file.read(name); + assert(p[] == "ab5d"); + } + { + scope MmFile mmf = new MmFile(name, MmFile.Mode.readCopyOnWrite, 4, null); + char[] p = cast(char[]) mmf[]; + assert(cast(string) mmf[] == "ab5d"); + p[] = "9102"; + mmf[2] = '5'; + assert(cast(string) mmf[] == "9152"); + } + { + string p = cast(string) std.file.read(name); + assert(p[] == "ab5d"); + } +} |