diff options
Diffstat (limited to 'Source/WebCore/platform/posix/FileSystemPOSIX.cpp')
-rw-r--r-- | Source/WebCore/platform/posix/FileSystemPOSIX.cpp | 244 |
1 files changed, 244 insertions, 0 deletions
diff --git a/Source/WebCore/platform/posix/FileSystemPOSIX.cpp b/Source/WebCore/platform/posix/FileSystemPOSIX.cpp new file mode 100644 index 0000000..c035310 --- /dev/null +++ b/Source/WebCore/platform/posix/FileSystemPOSIX.cpp @@ -0,0 +1,244 @@ +/* + * Copyright (C) 2007, 2008 Apple Inc. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of + * its contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "config.h" +#include "FileSystem.h" + +#include "PlatformString.h" +#ifdef ANDROID_PLUGINS +#include <dirent.h> +#endif +#include <errno.h> +#include <fcntl.h> +#ifdef ANDROID_PLUGINS +#include <fnmatch.h> +#endif +#include <libgen.h> +#include <sys/stat.h> +#include <sys/types.h> +#include <unistd.h> +#include <wtf/text/CString.h> + +namespace WebCore { + +bool fileExists(const String& path) +{ + if (path.isNull()) + return false; + + CString fsRep = fileSystemRepresentation(path); + + if (!fsRep.data() || fsRep.data()[0] == '\0') + return false; + + struct stat fileInfo; + + // stat(...) returns 0 on successful stat'ing of the file, and non-zero in any case where the file doesn't exist or cannot be accessed + return !stat(fsRep.data(), &fileInfo); +} + +bool deleteFile(const String& path) +{ + CString fsRep = fileSystemRepresentation(path); + + if (!fsRep.data() || fsRep.data()[0] == '\0') + return false; + + // unlink(...) returns 0 on successful deletion of the path and non-zero in any other case (including invalid permissions or non-existent file) + return !unlink(fsRep.data()); +} + +PlatformFileHandle openFile(const String& path, FileOpenMode mode) +{ + CString fsRep = fileSystemRepresentation(path); + + if (fsRep.isNull()) + return invalidPlatformFileHandle; + + int platformFlag = 0; + if (mode == OpenForRead) + platformFlag |= O_RDONLY; + else if (mode == OpenForWrite) + platformFlag |= (O_WRONLY | O_CREAT | O_TRUNC); + return open(fsRep.data(), platformFlag, 0666); +} + +void closeFile(PlatformFileHandle& handle) +{ + if (isHandleValid(handle)) { + close(handle); + handle = invalidPlatformFileHandle; + } +} + +long long seekFile(PlatformFileHandle handle, long long offset, FileSeekOrigin origin) +{ + int whence = SEEK_SET; + switch (origin) { + case SeekFromBeginning: + whence = SEEK_SET; + break; + case SeekFromCurrent: + whence = SEEK_CUR; + break; + case SeekFromEnd: + whence = SEEK_END; + break; + default: + ASSERT_NOT_REACHED(); + } + return static_cast<long long>(lseek(handle, offset, whence)); +} + +bool truncateFile(PlatformFileHandle handle, long long offset) +{ + // ftruncate returns 0 to indicate the success. + return !ftruncate(handle, offset); +} + +int writeToFile(PlatformFileHandle handle, const char* data, int length) +{ + do { + int bytesWritten = write(handle, data, static_cast<size_t>(length)); + if (bytesWritten >= 0) + return bytesWritten; + } while (errno == EINTR); + return -1; +} + +int readFromFile(PlatformFileHandle handle, char* data, int length) +{ + do { + int bytesRead = read(handle, data, static_cast<size_t>(length)); + if (bytesRead >= 0) + return bytesRead; + } while (errno == EINTR); + return -1; +} + +bool deleteEmptyDirectory(const String& path) +{ + CString fsRep = fileSystemRepresentation(path); + + if (!fsRep.data() || fsRep.data()[0] == '\0') + return false; + + // rmdir(...) returns 0 on successful deletion of the path and non-zero in any other case (including invalid permissions or non-existent file) + return !rmdir(fsRep.data()); +} + +bool getFileSize(const String& path, long long& result) +{ + CString fsRep = fileSystemRepresentation(path); + + if (!fsRep.data() || fsRep.data()[0] == '\0') + return false; + + struct stat fileInfo; + + if (stat(fsRep.data(), &fileInfo)) + return false; + + result = fileInfo.st_size; + return true; +} + +bool getFileModificationTime(const String& path, time_t& result) +{ + CString fsRep = fileSystemRepresentation(path); + + if (!fsRep.data() || fsRep.data()[0] == '\0') + return false; + + struct stat fileInfo; + + if (stat(fsRep.data(), &fileInfo)) + return false; + + result = fileInfo.st_mtime; + return true; +} + +String pathByAppendingComponent(const String& path, const String& component) +{ + if (path.endsWith("/")) + return path + component; + else + return path + "/" + component; +} + +bool makeAllDirectories(const String& path) +{ + CString fullPath = fileSystemRepresentation(path); + if (!access(fullPath.data(), F_OK)) + return true; + + char* p = fullPath.mutableData() + 1; + int length = fullPath.length(); + + if(p[length - 1] == '/') + p[length - 1] = '\0'; + for (; *p; ++p) + if (*p == '/') { + *p = '\0'; + if (access(fullPath.data(), F_OK)) + if (mkdir(fullPath.data(), S_IRWXU)) + return false; + *p = '/'; + } + if (access(fullPath.data(), F_OK)) + if (mkdir(fullPath.data(), S_IRWXU)) + return false; + + return true; +} + +#if !PLATFORM(ANDROID) +String pathGetFileName(const String& path) +{ + return path.substring(path.reverseFind('/') + 1); +} +#endif + +String directoryName(const String& path) +{ + CString fsRep = fileSystemRepresentation(path); + + if (!fsRep.data() || fsRep.data()[0] == '\0') + return String(); + + return dirname(fsRep.mutableData()); +} + +// OK to not implement listDirectory at the moment, because it's only used for plug-ins, and +// all platforms that use the shared plug-in implementation have implementations. We'd need +// to implement it if we wanted to use PluginDatabase.cpp on the Mac. Better to not implement +// at all and get a link error in case this arises, rather than having a stub here, because +// with a stub you learn about the problem at runtime instead of link time. + +} // namespace WebCore |