DXR is a code search and navigation tool aimed at making sense of large projects. It supports full-text and regex searches as well as structural queries.

Mercurial (5b81998bb7ab)

VCS Links

Line Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176
/* 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 "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"

////////////////////////////////////////////////////////////////////////////////

#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,
                               uint32_t offset, uint32_t count)
    {
        LOG(("MyListener::OnDataAvailable [offset=%u count=%u]\n", offset, count));

        char buf[500];
        nsresult rv;

        while (count) {
            uint32_t n, amt = NS_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_ISUPPORTS2(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[])
{
    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;
}