gecko-dev/netwerk/test/TestMCTransport.cpp

227 строки
5.7 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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/. */
#include <stdio.h>
#include "nsIServiceManager.h"
#include "nsIEventQueueService.h"
#include "nsIOutputStream.h"
#include "nsIStreamListener.h"
#include "nsITransport.h"
#include "nsIInputStream.h"
#include "nsIOutputStream.h"
#include "nsCOMPtr.h"
#include "plstr.h"
#include "prprf.h"
#include <algorithm>
#ifndef USE_CREATE_INSTANCE
#include "nsICacheService.h"
#include "nsICacheSession.h"
#include "nsICacheEntryDescriptor.h"
#include "nsNetCID.h"
static NS_DEFINE_CID(kCacheServiceCID, NS_CACHESERVICE_CID);
static nsICacheSession *session = nullptr;
static nsICacheEntryDescriptor *desc = nullptr;
#endif
/**
* This test program exercises the memory cache's nsITransport implementation.
*
* This test program loads a file into the memory cache (using OpenOutputStream),
* and then reads the file back out (using AsyncRead). The data read from the
* memory cache is written to a new file (with .out added as a suffix to the file
* name).
*/
static NS_DEFINE_CID(kEventQueueServiceCID, NS_EVENTQUEUESERVICE_CID);
static nsIEventQueue *gEventQ = nullptr;
class TestListener : public nsIStreamListener
{
public:
NS_DECL_ISUPPORTS
NS_DECL_NSISTREAMLISTENER
NS_DECL_NSIREQUESTOBSERVER
TestListener(char *);
virtual ~TestListener();
private:
char *mFilename;
FILE *mFile;
};
NS_IMPL_ISUPPORTS2(TestListener,
nsIStreamListener,
nsIRequestObserver)
TestListener::TestListener(char *filename)
: mFilename(filename)
, mFile(nullptr)
{
}
TestListener::~TestListener()
{
}
NS_IMETHODIMP
TestListener::OnStartRequest(nsIRequest *req, nsISupports *ctx)
{
printf("OnStartRequest\n");
mFile = fopen(mFilename, "w");
if (!mFile)
return NS_ERROR_FAILURE;
return NS_OK;
}
NS_IMETHODIMP
TestListener::OnStopRequest(nsIRequest *req, nsISupports *ctx, nsresult status)
{
printf("OnStopRequest: status=%x\n", status);
if (mFile)
fclose(mFile);
return NS_OK;
}
NS_IMETHODIMP
TestListener::OnDataAvailable(nsIRequest *req, nsISupports *ctx,
nsIInputStream *is,
uint64_t offset, uint32_t count)
{
printf("OnDataAvailable: offset=%llu count=%u\n", offset, count);
if (!mFile) return NS_ERROR_FAILURE;
char buf[128];
nsresult rv;
uint32_t nread = 0;
while (count) {
uint32_t amount = std::min<uint32_t>(count, sizeof(buf));
rv = is->Read(buf, amount, &nread);
if (NS_FAILED(rv)) return rv;
fwrite(buf, nread, 1, mFile);
count -= nread;
}
return NS_OK;
}
nsresult TestMCTransport(const char *filename)
{
nsresult rv = NS_OK;
nsCOMPtr<nsITransport> transport;
#ifdef USE_CREATE_INSTANCE
transport = do_CreateInstance(
"@mozilla.org/network/memory-cache-transport;1", &rv);
if (NS_FAILED(rv))
return rv;
#else
nsCOMPtr<nsICacheService> serv(do_GetService(kCacheServiceCID, &rv));
if (NS_FAILED(rv)) return rv;
rv = serv->CreateSession("TestMCTransport",
nsICache::STORE_IN_MEMORY, true,
&session);
if (NS_FAILED(rv)) return rv;
rv = session->OpenCacheEntry(nsDependentCString(filename),
nsICache::ACCESS_READ_WRITE,
nsICache::BLOCKING,
&desc);
if (NS_FAILED(rv)) return rv;
rv = desc->MarkValid();
if (NS_FAILED(rv)) return rv;
rv = desc->GetTransport(getter_AddRefs(transport));
if (NS_FAILED(rv)) return rv;
#endif
nsCOMPtr<nsIOutputStream> os;
rv = transport->OpenOutputStream(0, (uint32_t) -1, 0, getter_AddRefs(os));
if (NS_FAILED(rv)) return rv;
char *out = PR_smprintf("%s.out", filename);
nsCOMPtr<nsIStreamListener> listener = new TestListener(out);
if (!listener)
return NS_ERROR_OUT_OF_MEMORY;
nsCOMPtr<nsIRequest> req;
rv = transport->AsyncRead(listener, nullptr, 0, (uint32_t) -1, 0, getter_AddRefs(req));
if (NS_FAILED(rv)) return rv;
FILE *file = fopen(filename, "r");
if (!file)
return NS_ERROR_FILE_NOT_FOUND;
char buf[256];
uint32_t count, total=0;
while ((count = fread(buf, 1, sizeof(buf), file)) > 0) {
printf("writing %u bytes\n", count);
total += count;
rv = os->Write(buf, count, &count);
if (NS_FAILED(rv)) return rv;
// process an event
PLEvent *event = nullptr;
gEventQ->GetEvent(&event);
if (event) gEventQ->HandleEvent(event);
}
printf("wrote %u bytes\n", total);
return rv;
}
int main(int argc, char **argv)
{
nsresult rv;
if (argc < 2) {
printf("usage: %s filename\n", argv[0]);
return -1;
}
nsCOMPtr<nsIEventQueueService> eqs =
do_GetService(kEventQueueServiceCID, &rv);
if (NS_FAILED(rv)) {
printf("failed to create event queue service: rv=%x\n", rv);
return -1;
}
rv = eqs->CreateMonitoredThreadEventQueue();
if (NS_FAILED(rv)) {
printf("failed to create monitored event queue: rv=%x\n", rv);
return -1;
}
rv = eqs->GetThreadEventQueue(NS_CURRENT_THREAD, &gEventQ);
if (NS_FAILED(rv)) {
printf("failed to get thread event queue: %x\n", rv);
return -1;
}
rv = TestMCTransport(argv[1]);
printf("TestMCTransport returned %x\n", rv);
gEventQ->ProcessPendingEvents();
#ifndef USE_CREATE_INSTANCE
NS_IF_RELEASE(desc);
NS_IF_RELEASE(session);
#endif
return 0;
}