libdispatch-187.5.tar.gz

[apple/libdispatch.git] / examples / Dispatch Samples / readFile.c

diff --git a/examples/Dispatch Samples/readFile.c b/examples/Dispatch Samples/readFile.c
deleted file mode 100644 (file)
index 9c537c5..0000000
--- a/examples/Dispatch Samples/readFile.c
+++ /dev/null
@@ -1,115 +0,0 @@
-/*
- * Copyright (c) 2008 Apple Inc.  All rights reserved.
- *
- * @APPLE_DTS_LICENSE_HEADER_START@
- * 
- * IMPORTANT:  This Apple software is supplied to you by Apple Computer, Inc.
- * ("Apple") in consideration of your agreement to the following terms, and your
- * use, installation, modification or redistribution of this Apple software
- * constitutes acceptance of these terms.  If you do not agree with these terms,
- * please do not use, install, modify or redistribute this Apple software.
- * 
- * In consideration of your agreement to abide by the following terms, and
- * subject to these terms, Apple grants you a personal, non-exclusive license,
- * under Apple's copyrights in this original Apple software (the "Apple Software"),
- * to use, reproduce, modify and redistribute the Apple Software, with or without
- * modifications, in source and/or binary forms; provided that if you redistribute
- * the Apple Software in its entirety and without modifications, you must retain
- * this notice and the following text and disclaimers in all such redistributions
- * of the Apple Software.  Neither the name, trademarks, service marks or logos of
- * Apple Computer, Inc. may be used to endorse or promote products derived from
- * the Apple Software without specific prior written permission from Apple.  Except
- * as expressly stated in this notice, no other rights or licenses, express or
- * implied, are granted by Apple herein, including but not limited to any patent
- * rights that may be infringed by your derivative works or by other works in
- * which the Apple Software may be incorporated.
- * 
- * The Apple Software is provided by Apple on an "AS IS" basis.  APPLE MAKES NO
- * WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
- * WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN
- * COMBINATION WITH YOUR PRODUCTS. 
- * 
- * IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
- * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR
- * DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF
- * CONTRACT, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF
- * APPLE HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- * 
- * @APPLE_DTS_LICENSE_HEADER_END@
- */
-
-#include <assert.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <sys/errno.h>
-
-#include <dispatch/dispatch.h>
-
-int main(int argc, char* argv[])
-{
-       int infd;
-       dispatch_source_t fileSource;
-
-       if (argc != 2) {
-               fprintf(stderr, "usage: %s file ...\n", argv[0]);
-               exit(1);
-       }
-       
-               
-       infd = open(argv[1], O_RDONLY);
-       if (infd == -1) {
-               perror(argv[1]);
-               exit(1);
-       }
-       
-       if (fcntl(infd, F_SETFL, O_NONBLOCK) != 0) {
-               perror(argv[1]);
-               exit(1);
-       }
-       
-       fileSource = dispatch_source_create(DISPATCH_SOURCE_TYPE_READ, infd, 0, dispatch_queue_create("read source queue",NULL));
-
-       dispatch_source_set_event_handler( fileSource, ^{
-               char buffer[10];
-               size_t estimated = dispatch_source_get_data(fileSource);
-               printf("Estimated bytes available: %ld\n", estimated);
-               ssize_t actual = read(infd, buffer, sizeof(buffer));
-               if (actual == -1) {
-                       if (errno != EAGAIN) {
-                               perror("read");
-                               exit(-1);
-                       }
-               } else {
-                       if  (estimated>actual) {
-                               printf("  bytes read: %ld\n", actual);
-                       } else {
-                               // end of file has been reached.
-                               printf("  last bytes read: %ld\n", actual);
-                               dispatch_source_cancel(fileSource);
-                       }               
-               }
-       });
-       
-       dispatch_source_set_cancel_handler( fileSource, ^{
-               // release all our associated dispatch data structures
-               dispatch_release(fileSource);                                   
-               dispatch_release(dispatch_get_current_queue());
-               // close the file descriptor because we are done reading it
-               close(infd);
-               // and since we have nothing left to do, exit the tool
-               exit(0);
-               
-       });
-       
-       dispatch_resume(fileSource);
-
-       dispatch_main();
-       
-       return 0;
-}