Added utilities for handling temporary files.

TempFiles/NSFileHandle+TempFile.h

@@ -0,0 +1,91 @@
+/*
+ * NSFileHandle+TempFile.h
+ * AQToolkit
+ * 
+ * Created by Jim Dovey on 10/4/2009.
+ * 
+ * Copyright (c) 2009 Jim Dovey
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ * Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 
+ * 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.
+ * 
+ * Neither the name of the project's author 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
+ * HOLDER OR 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.
+ *
+ */
+
+#import <Foundation/Foundation.h>
+
+/*!
+    @category
+    @abstract    Temporary file support.
+    @discussion
+    Routines to create and open a temporary file handle. This uses
+    mkstemp() to avoid the race condition between test and creation.
+*/
+@interface NSFileHandle (AQTempFileSupport)
+
+/*!
+    @method
+    @abstract   Returns a path for a new temporary file.
+    @discussion
+    The returned path is based on NSTemporaryDirectory()/#{appName}/#{tempName}.
+ */
+- (id) initTempFile;
+
+/*!
+    @method
+    @abstract   Returns a path for a new temporary file within the given folder.
+    @discussion
+    The returned path is based on folderName/#{tempName}.
+    This routine is this category's 'designated initializer'; the others all
+    call this method to initialize the returned object.
+ */
+- (id) initTempFileInFolder: (NSString *) folderPath;
+
+/*!
+    @method     
+    @abstract   Create a temporary file inside NSTemporaryDirectory(), inside a given folder.
+    @param subfolderName The name of the subfolder of NSTemporaryDirectory() in which to create the temp file.
+    @discussion
+    The returned path is based on NSTemporaryDirectory()/folderName/#{tempName}
+ */
+- (id) initTempFileUnderSubfolder: (NSString *) subfolderName;
+
+// conveniences for the above
++ (NSFileHandle *) tempFile;
++ (NSFileHandle *) tempFileInFolder: (NSString *) folderPath;
++ (NSFileHandle *) tempFileUnderSubfolder: (NSString *) subfolderName;
+
+/*!
+    @method     
+    @abstract   Returns the path of a file handle based around a file descriptor.
+    @discussion
+    Note that this function can return nil if the receiver was not initialized from
+    a file on the local filesystem.
+*/
+- (NSString *) filePath;
+
+@end

TempFiles/NSFileHandle+TempFile.m

@@ -0,0 +1,102 @@
+/*
+ * NSFileHandle+TempFile.m
+ * AQToolkit
+ * 
+ * Created by Jim Dovey on 10/4/2009.
+ * 
+ * Copyright (c) 2009 Jim Dovey
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ * Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 
+ * 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.
+ * 
+ * Neither the name of the project's author 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
+ * HOLDER OR 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.
+ *
+ */
+
+#import "NSFileHandle+TempFile.h"
+#import <sys/fcntl.h>
+#import <sys/param.h>
+
+@implementation NSFileHandle (AQTempFile)
+
++ (NSFileHandle *) tempFile
+{
+    return ( [[[self alloc] initTempFile] autorelease] );
+}
+
++ (NSFileHandle *) tempFileInFolder: (NSString *) folderPath
+{
+    return ( [[[self alloc] initTempFileInFolder: folderPath] autorelease] );
+}
+
++ (NSFileHandle *) tempFileUnderSubfolder: (NSString *) folderName
+{
+    return ( [[[self alloc] initTempFileUnderSubfolder: folderName] autorelease] );
+}
+
+- (id) initTempFile
+{
+    return ( [self initTempFileInFolder: [NSTemporaryDirectory() stringByAppendingPathComponent: [[NSProcessInfo processInfo] processName]]] );
+}
+
+- (id) initTempFileInFolder: (NSString *) folderPath
+{
+    NSString * path = [folderPath stringByAppendingPathComponent: @"XXXXXXXXXXXX"];
+    char cStr[PATH_MAX];
+    strlcpy( cStr, [path fileSystemRepresentation], PATH_MAX );
+
+    int fd = mkstemp( cStr );
+    if ( fd == -1 )
+        return ( nil );
+
+    return ( [self initWithFileDescriptor: fd] );
+}
+
+- (id) initTempFileUnderSubfolder: (NSString *) folderName
+{
+    return ( [self initTempFileInFolder: [NSTemporaryDirectory() stringByAppendingPathComponent: folderName]] );
+}
+
+- (NSString *) filePath
+{
+    int fd = [self fileDescriptor];
+    if ( fd == -1 )
+        return ( nil );
+
+    char buf[MAXPATHLEN];
+    buf[0] = '\0';
+
+    int err = fcntl( fd, F_GETPATH, buf );
+    if ( err == -1 )
+        return ( nil );
+
+    if ( buf[0] == '\0' )
+        return ( nil );
+
+    return ( [NSString stringWithUTF8String: buf] );
+}
+
+@end

TempFiles/NSFileManager+TempFile.h

@@ -0,0 +1,73 @@
+/*
+ * NSFileManager+TempFile.h
+ * AQToolkit
+ * 
+ * Created by Jim Dovey on 10/4/2009.
+ * 
+ * Copyright (c) 2009 Jim Dovey
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ * Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 
+ * 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.
+ * 
+ * Neither the name of the project's author 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
+ * HOLDER OR 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.
+ * 
+ */
+
+#import <Foundation/Foundation.h>
+
+/*!
+    @category   AQTempFileSupport
+    @abstract   Routines to generate temporary file paths.
+*/
+@interface NSFileManager (AQTempFileSupport)
+
+/*!
+    @method
+    @abstract   Returns a path for a new temporary file.
+    @discussion
+    The returned path is based on NSTemporaryDirectory()/#{appName}/#{tempName}.
+*/
+- (NSString *) tempFilePath;
+
+/*!
+    @method
+    @abstract   Append a temp file name to the given path.
+    @param folderPath Path to the parent folder of the new temp file.
+    @discussion
+    The returned path is based on folderPath/#{tempName}.
+*/
+- (NSString *) tempFileInFolder: (NSString *) folderPath;
+
+/*!
+    @method     
+    @abstract   Create a temporary file inside NSTemporaryDirectory(), inside a given folder.
+    @param folderName The name of the subfolder of NSTemporaryDirectory() in which to create the temp file.
+    @discussion
+    The returned path is based on NSTemporaryDirectory()/folderName/#{tempName}
+*/
+- (NSString *) tempFileUnderSubfolder: (NSString *) folderName;
+
+@end

TempFiles/NSFileManager+TempFile.m

@@ -0,0 +1,65 @@
+/*
+ * NSFileManager+TempFile.m
+ * AQToolkit
+ * 
+ * Created by Jim Dovey on 10/4/2009.
+ * 
+ * Copyright (c) 2009 Jim Dovey
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ * Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 
+ * 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.
+ * 
+ * Neither the name of the project's author 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
+ * HOLDER OR 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.
+ *
+ */
+
+#import "NSFileManager+TempFile.h"
+
+@implementation NSFileManager (AQTempFileSupport)
+
+- (NSString *) tempFilePath
+{
+    // NSTemporaryDirectory() / appName / tempFile
+    return ( [self tempFileInFolder: [NSTemporaryDirectory() stringByAppendingPathComponent: [[NSProcessInfo processInfo] processName]]] );
+}
+
+- (NSString *) tempFileInFolder: (NSString *) folderPath
+{
+    if ( [self createDirectoryAtPath: folderPath withIntermediateDirectories: YES attributes: nil error: NULL] == NO )
+        return ( nil );
+
+    char tempName[13];
+    strlcpy( tempName, "XXXXXXXXXXXX", 13 );
+    char * fname = mktemp( tempName );
+    return ( [folderPath stringByAppendingPathComponent: [NSString stringWithUTF8String: fname]] );
+}
+
+- (NSString *) tempFileUnderSubfolder: (NSString *) folderName
+{
+    return ( [self tempFileInFolder: [NSTemporaryDirectory() stringByAppendingPathComponent: folderName]] );
+}
+
+@end

TempFiles/NSString+UUID.h

@@ -0,0 +1,56 @@
+/*
+ * NSString+UUID.h
+ * AQToolkit
+ * 
+ * Created by Jim Dovey on 10/4/2009.
+ * 
+ * Copyright (c) 2009 Jim Dovey
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ * Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 
+ * 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.
+ * 
+ * Neither the name of the project's author 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
+ * HOLDER OR 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.
+ * 
+ */
+
+#import <Foundation/Foundation.h>
+
+/*!
+    @category   AQUUIDSupport
+    @abstract   Simple UUID string generation.
+    @discussion
+    All methods in this category are compatible with both garbage collection
+    and memory management.
+*/
+@interface NSString (AQUUIDSupport)
+
+/*!
+    @method     uuidString
+    @abstract   Returns a string representation of a new UUID.
+*/
++ (NSString *) uuidString;
+
+@end