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<a href="http://developer.apple.com/">ADC Home</a> > <a href="../../referencelibrary/index.html">Reference Library</a> > <a href="../../samplecode/index.html">Sample Code</a> > <a href="../../samplecode/LegacyTechnologies/index.html">Legacy Documents</a> > <a href="../../samplecode/LegacyTechnologies/idxCarbon-date.html">Carbon</a> > <A HREF="javascript:location.replace('index.html');">OTSimpleDownloadHTTP</A> >
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<div style="width:100%; position:fixed;"><div align="center" id="watermark" style="position: relative; margin-left:auto; margin-right:auto; z-index:20; width:500px;"><div class="legacybox"><h1>Legacy Document<span class=closebutton><a href="javascript:closeWatermark()"><img src="../../images/closebutton.png" width="14" height="14" border="0" alt="close button"></a></span></h1>
<p><strong>Important: </strong>This document is part of the Legacy section of the ADC Reference Library. This information should not be used for new development.</p>
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<pre class="sourcecodebox">/* File: OTSimpleDownloadHTTPTest.c Contains: A test program for the simple HTTP download sample. Written by: Quinn "The Eskimo!" Copyright: Copyright © 1997-1999 by Apple Computer, Inc., All Rights Reserved. You may incorporate this Apple sample source code into your program(s) without restriction. This Apple sample source code has been provided "AS IS" and the responsibility for its operation is yours. You are not permitted to redistribute this Apple sample source code as "Apple sample source code" after having made changes. If you're going to re-distribute the source, we require that you make it clear in the source that the code was descended from Apple sample source code, but that you've made changes. Change History (most recent first): 3/02/2001 Chad Jones Updated to Metroworks Codewarrior Pro IDE 4.1. Also carbonized for OSX. 7/23/1999 Karl Groethe Updated for Metrowerks Codewarror Pro 2.1 *//////////////////////////////////////////////////////////////////////// Pick up our own prototype.#include "OTSimpleDownloadHTTP.h"/////////////////////////////////////////////////////////////////////// OTDebugStr is not defined in any OT header files, but it is// exported by the libraries, so we define the prototype here.extern pascal void OTDebugStr(const char* str);/////////////////////////////////////////////////////////////////////#if defined(__MWERKS__)# include <Threads.h># include <string.h># include <stdio.h># include <ctype.h>#endifenum { kNotHTTPURLErr = -666, kWhatImplementationErr = -667};enum { kDownloadSimple, kDownloadFaster};//These are my versions of PStrCat and PStrCopy.StringPtr PStrCat(StringPtr dst, ConstStr255Param src);StringPtr PStrCopy(StringPtr dst, ConstStr255Param src);StringPtr PStrCat(StringPtr dst, ConstStr255Param src){ SInt16 size = src[0]; if (0xff - dst[0] < size) size = 0xff - dst[0]; BlockMoveData(&src[1], &dst[dst[0]], size); dst[0] = dst[0] + size; return dst;}StringPtr PStrCopy(StringPtr dst, ConstStr255Param src){dst[0] = src[0]; BlockMoveData(&src[1], &dst[1], src[0]); return dst;}static OSStatus DownloadURL(const char *urlString){ OSStatus err; size_t hostCharCount; char hostName[256]; Str255 tickCountString; Str255 destFileName; FSSpec destFSSpec; short destFileRefNum; char httpGetCommand[256]; OTTimeStamp startTime; UInt32 timeToDownload; long fileSize; err = noErr; // First check that the urlString begins with "http://" if ( strspn(urlString, "http://") != strlen("http://") ) { err = kNotHTTPURLErr; } // Now skip over the "http://" and extract the host name. if (err == noErr) { // Skip over the "http://". urlString += strlen("http://"); // Count the characters before the next slash. hostCharCount = strcspn(urlString, "/"); // Extract those characters from the URL into hostName // and then make sure it's null terminated. (void) strncpy(hostName, urlString, hostCharCount); hostName[hostCharCount] = 0; urlString += hostCharCount; // Add a ":80" to the host name if necessary. if ( strchr( hostName, ':' ) == nil ) { strcat( hostName, ":80" ); } if (err == noErr) { NumToString(TickCount(), tickCountString); PStrCopy(destFileName, "\pSimpleDownload#"); PStrCat(destFileName, tickCountString); (void) FSMakeFSSpec(0, 0, destFileName, &destFSSpec); (void) FSpCreate(&destFSSpec, 'R*ch', 'TEXT', 0); err = FSpOpenDF(&destFSSpec, fsRdWrPerm, &destFileRefNum); if (err != noErr) { destFileRefNum = 0; } } if (err == noErr) { // Now place the URL into the HTTP command that we send to DownloadHTTPSimple. if ( *urlString == 0 ) { urlString = "/"; } (void) sprintf(httpGetCommand, "GET %s HTTP/1.0%c%c%c%c", urlString, 13, 10, 13, 10); printf("Calling DownloadHTTPXxxx("%s", "%s", %04x).\n", hostName, urlString, destFileRefNum); fflush(stdout); OTGetTimeStamp(&startTime); err = DownloadHTTPSimple(hostName, httpGetCommand, destFileRefNum); timeToDownload = OTElapsedMicroseconds(&startTime); } if (err == noErr) { MoreAssert(GetFPos(destFileRefNum, &fileSize) == noErr); //Assertion Fails if: GetFPos failed printf("Bytes downloaded: %ld.\n", fileSize); printf("Time to download: %ldus.\n", timeToDownload); printf("Bytes per second: %f.\n", (float) fileSize / (((float) timeToDownload) / 1000000.0) ); fflush(stdout); } // Clean up. if (destFileRefNum != 0) { (void) FSClose(destFileRefNum); } if (err != noErr) { //(void) FSpDelete(&destFSSpec); } } return (err);}static UInt32 gLastPrinted = 0;static pascal OSStatus ProgressThread(void *junkParam){ #pragma unused(junkParam) OSStatus junk; while (true) { if ( TickCount() > (gLastPrinted + 60) ) { printf("."); fflush(stdout); gLastPrinted = TickCount(); } junk = YieldToAnyThread(); MoreAssert(junk == noErr); //Assertion fails if: YieldToAnyThread failed } return (noErr); }static const char *defaultURLs[10] = {"http://www.apple.com","http://www.apple.com/developer/","http://developer.apple.com/dev/opentransport/","http://developer.apple.com/technotes/index.html","","","","","",""};int main(void){ OSStatus err; OSStatus junk; char urlString[256]; UInt32 i; ThreadID progressThread; #if defined(__MWERKS__) SIOUXSettings.autocloseonquit = FALSE; // don't close the SIOUX window on program termination SIOUXSettings.asktosaveonclose = FALSE; // don't offer to save on a close#endif printf("OTDownloadHTTP!\n"); printf("-- Downloads a URL using OT's thread support\n"); printf("-- or using notifiers.\n"); printf("\n"); fflush(stdout); err = InitOpenTransportInContext(kInitOTForApplicationMask, nil); if (err == noErr) { for (i = 0; i < 10; i++) { if ( *defaultURLs[i] != 0 ) { printf("%ld> %s\n", i, defaultURLs[i]); fflush(stdout); } } printf("\n"); printf("Enter a URL (or type a number from the above list):\n"); fflush(stdout); scanf("%s", (char *)&urlString); if ( strlen(urlString) == 1 && isdigit(urlString[0])) { strcpy( urlString, defaultURLs[ urlString[0] - '0' ] ); } if ( urlString[0] == 0 ) { strcpy( urlString, defaultURLs[0] ); } err = NewThread(kCooperativeThread, NewThreadEntryUPP((void *) &ProgressThread), nil, 0, kCreateIfNeeded, nil, &progressThread); if (err == noErr) { err = DownloadURL(urlString); junk = DisposeThread(progressThread, nil, true); MoreAssert(junk == noErr); //Assertion fails if: DisposeThread failed } CloseOpenTransportInContext(nil); } if (err == noErr) { printf("Success.\n"); } else { printf("Failed with error %ld.\n", err); } printf("Done.\n"); fflush(stdout); return(0);}</pre>
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