gecko-dev/netwerk/test/TestStreamPump.cpp

178 строки
4.8 KiB
C++
Исходник Обычный вид История

2012-05-21 15:12:37 +04:00
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "TestCommon.h"
#include "nsIComponentRegistrar.h"
#include "nsIStreamTransportService.h"
#include "nsIAsyncInputStream.h"
#include "nsIProgressEventSink.h"
#include "nsIInterfaceRequestor.h"
#include "nsIInterfaceRequestorUtils.h"
#include "nsIRequest.h"
#include "nsIServiceManager.h"
#include "nsIComponentManager.h"
#include "nsISeekableStream.h"
#include "nsCOMPtr.h"
#include "nsMemory.h"
#include "nsStringAPI.h"
#include "nsIFileStreams.h"
#include "nsIStreamListener.h"
#include "nsIFile.h"
#include "nsNetUtil.h"
#include "nsAutoLock.h"
#include "prlog.h"
#include "prprf.h"
#include <algorithm>
////////////////////////////////////////////////////////////////////////////////
#if defined(PR_LOGGING)
//
// set NSPR_LOG_MODULES=Test:5
//
static PRLogModuleInfo *gTestLog = nullptr;
#define LOG(args) PR_LOG(gTestLog, PR_LOG_DEBUG, args)
#else
#define LOG(args)
#endif
////////////////////////////////////////////////////////////////////////////////
class MyListener : public nsIStreamListener
{
public:
NS_DECL_ISUPPORTS
MyListener() {}
virtual ~MyListener() {}
NS_IMETHOD OnStartRequest(nsIRequest *req, nsISupports *ctx)
{
LOG(("MyListener::OnStartRequest\n"));
return NS_OK;
}
NS_IMETHOD OnDataAvailable(nsIRequest *req, nsISupports *ctx,
nsIInputStream *stream,
uint64_t offset, uint32_t count)
{
LOG(("MyListener::OnDataAvailable [offset=%llu count=%u]\n", offset, count));
char buf[500];
nsresult rv;
while (count) {
uint32_t n, amt = std::min<uint32_t>(count, sizeof(buf));
rv = stream->Read(buf, amt, &n);
if (NS_FAILED(rv)) {
LOG((" read returned 0x%08x\n", rv));
return rv;
}
fwrite(buf, n, 1, stdout);
printf("\n");
LOG((" read %u bytes\n", n));
count -= n;
}
return NS_OK;
}
NS_IMETHOD OnStopRequest(nsIRequest *req, nsISupports *ctx, nsresult status)
{
LOG(("MyListener::OnStopRequest [status=%x]\n", status));
QuitPumpingEvents();
return NS_OK;
}
};
NS_IMPL_ISUPPORTS(MyListener,
nsIRequestObserver,
nsIStreamListener)
////////////////////////////////////////////////////////////////////////////////
/**
* asynchronously copy file.
*/
static nsresult
RunTest(nsIFile *file, int64_t offset, int64_t length)
{
nsresult rv;
LOG(("RunTest\n"));
nsCOMPtr<nsIInputStream> stream;
rv = NS_NewLocalFileInputStream(getter_AddRefs(stream), file);
if (NS_FAILED(rv)) return rv;
nsCOMPtr<nsIInputStreamPump> pump;
rv = NS_NewInputStreamPump(getter_AddRefs(pump), stream, offset, length);
if (NS_FAILED(rv)) return rv;
rv = pump->AsyncRead(new MyListener(), nullptr);
if (NS_FAILED(rv)) return rv;
PumpEvents();
return NS_OK;
}
////////////////////////////////////////////////////////////////////////////////
int
main(int argc, char* argv[])
{
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if (test_common_init(&argc, &argv) != 0)
return -1;
nsresult rv;
if (argc < 4) {
printf("usage: %s <file-to-read> <start-offset> <read-length>\n", argv[0]);
return -1;
}
char* fileName = argv[1];
int64_t offset, length;
int err = PR_sscanf(argv[2], "%lld", &offset);
if (err == -1) {
printf("Start offset must be an integer!\n");
return 1;
}
err = PR_sscanf(argv[3], "%lld", &length);
if (err == -1) {
printf("Length must be an integer!\n");
return 1;
}
{
nsCOMPtr<nsIServiceManager> servMan;
NS_InitXPCOM2(getter_AddRefs(servMan), nullptr, nullptr);
nsCOMPtr<nsIComponentRegistrar> registrar = do_QueryInterface(servMan);
NS_ASSERTION(registrar, "Null nsIComponentRegistrar");
if (registrar)
registrar->AutoRegister(nullptr);
#if defined(PR_LOGGING)
gTestLog = PR_NewLogModule("Test");
#endif
nsCOMPtr<nsIFile> file;
rv = NS_NewNativeLocalFile(nsDependentCString(fileName), false, getter_AddRefs(file));
if (NS_FAILED(rv)) return rv;
rv = RunTest(file, offset, length);
NS_ASSERTION(NS_SUCCEEDED(rv), "RunTest failed");
// give background threads a chance to finish whatever work they may
// be doing.
PR_Sleep(PR_SecondsToInterval(1));
} // this scopes the nsCOMPtrs
// no nsCOMPtrs are allowed to be alive when you call NS_ShutdownXPCOM
rv = NS_ShutdownXPCOM(nullptr);
NS_ASSERTION(NS_SUCCEEDED(rv), "NS_ShutdownXPCOM failed");
return NS_OK;
}