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gecko-dev/xpcom/tests/TestPipes.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* 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 "TestHarness.h"
#include "nsIThread.h"
#include "nsIRunnable.h"
#include "nsThreadUtils.h"
#include "prprf.h"
#include "prinrval.h"
#include "nsCRT.h"
#include "nsIPipe.h" // new implementation
#include "mozilla/Monitor.h"
using namespace mozilla;
/** NS_NewPipe2 reimplemented, because it's not exported by XPCOM */
nsresult TP_NewPipe2(nsIAsyncInputStream** input,
nsIAsyncOutputStream** output,
bool nonBlockingInput,
bool nonBlockingOutput,
uint32_t segmentSize,
uint32_t segmentCount,
nsIMemory* segmentAlloc)
{
nsCOMPtr<nsIPipe> pipe = do_CreateInstance("@mozilla.org/pipe;1");
if (!pipe)
return NS_ERROR_OUT_OF_MEMORY;
nsresult rv = pipe->Init(nonBlockingInput,
nonBlockingOutput,
segmentSize,
segmentCount,
segmentAlloc);
if (NS_FAILED(rv))
return rv;
pipe->GetInputStream(input);
pipe->GetOutputStream(output);
return NS_OK;
}
/** NS_NewPipe reimplemented, because it's not exported by XPCOM */
#define TP_DEFAULT_SEGMENT_SIZE 4096
nsresult TP_NewPipe(nsIInputStream **pipeIn,
nsIOutputStream **pipeOut,
uint32_t segmentSize = 0,
uint32_t maxSize = 0,
bool nonBlockingInput = false,
bool nonBlockingOutput = false,
nsIMemory *segmentAlloc = nullptr);
nsresult TP_NewPipe(nsIInputStream **pipeIn,
nsIOutputStream **pipeOut,
uint32_t segmentSize,
uint32_t maxSize,
bool nonBlockingInput,
bool nonBlockingOutput,
nsIMemory *segmentAlloc)
{
if (segmentSize == 0)
segmentSize = TP_DEFAULT_SEGMENT_SIZE;
// Handle maxSize of PR_UINT32_MAX as a special case
uint32_t segmentCount;
if (maxSize == PR_UINT32_MAX)
segmentCount = PR_UINT32_MAX;
else
segmentCount = maxSize / segmentSize;
nsIAsyncInputStream *in;
nsIAsyncOutputStream *out;
nsresult rv = TP_NewPipe2(&in, &out, nonBlockingInput, nonBlockingOutput,
segmentSize, segmentCount, segmentAlloc);
if (NS_FAILED(rv)) return rv;
*pipeIn = in;
*pipeOut = out;
return NS_OK;
}
#define KEY 0xa7
#define ITERATIONS 33333
char kTestPattern[] = "My hovercraft is full of eels.\n";
bool gTrace = false;
static nsresult
WriteAll(nsIOutputStream *os, const char *buf, uint32_t bufLen, uint32_t *lenWritten)
{
const char *p = buf;
*lenWritten = 0;
while (bufLen) {
uint32_t n;
nsresult rv = os->Write(p, bufLen, &n);
if (NS_FAILED(rv)) return rv;
p += n;
bufLen -= n;
*lenWritten += n;
}
return NS_OK;
}
class nsReceiver : public nsIRunnable {
public:
NS_DECL_ISUPPORTS
NS_IMETHOD Run() {
nsresult rv;
char buf[101];
uint32_t count;
PRIntervalTime start = PR_IntervalNow();
while (true) {
rv = mIn->Read(buf, 100, &count);
if (NS_FAILED(rv)) {
printf("read failed\n");
break;
}
if (count == 0) {
// printf("EOF count = %d\n", mCount);
break;
}
if (gTrace) {
buf[count] = '\0';
printf("read: %s\n", buf);
}
mCount += count;
}
PRIntervalTime end = PR_IntervalNow();
printf("read %d bytes, time = %dms\n", mCount,
PR_IntervalToMilliseconds(end - start));
return rv;
}
nsReceiver(nsIInputStream* in) : mIn(in), mCount(0) {
}
uint32_t GetBytesRead() { return mCount; }
protected:
nsCOMPtr<nsIInputStream> mIn;
uint32_t mCount;
};
NS_IMPL_THREADSAFE_ISUPPORTS1(nsReceiver, nsIRunnable)
nsresult
TestPipe(nsIInputStream* in, nsIOutputStream* out)
{
nsCOMPtr<nsReceiver> receiver = new nsReceiver(in);
if (!receiver)
return NS_ERROR_OUT_OF_MEMORY;
nsresult rv;
nsCOMPtr<nsIThread> thread;
rv = NS_NewThread(getter_AddRefs(thread), receiver);
if (NS_FAILED(rv)) return rv;
uint32_t total = 0;
PRIntervalTime start = PR_IntervalNow();
for (uint32_t i = 0; i < ITERATIONS; i++) {
uint32_t writeCount;
char *buf = PR_smprintf("%d %s", i, kTestPattern);
uint32_t len = strlen(buf);
rv = WriteAll(out, buf, len, &writeCount);
if (gTrace) {
printf("wrote: ");
for (uint32_t j = 0; j < writeCount; j++) {
putc(buf[j], stdout);
}
printf("\n");
}
PR_smprintf_free(buf);
if (NS_FAILED(rv)) return rv;
total += writeCount;
}
rv = out->Close();
if (NS_FAILED(rv)) return rv;
PRIntervalTime end = PR_IntervalNow();
thread->Shutdown();
printf("wrote %d bytes, time = %dms\n", total,
PR_IntervalToMilliseconds(end - start));
NS_ASSERTION(receiver->GetBytesRead() == total, "didn't read everything");
return NS_OK;
}
////////////////////////////////////////////////////////////////////////////////
class nsShortReader : public nsIRunnable {
public:
NS_DECL_ISUPPORTS
NS_IMETHOD Run() {
nsresult rv;
char buf[101];
uint32_t count;
uint32_t total = 0;
while (true) {
//if (gTrace)
// printf("calling Read\n");
rv = mIn->Read(buf, 100, &count);
if (NS_FAILED(rv)) {
printf("read failed\n");
break;
}
if (count == 0) {
break;
}
if (gTrace) {
// For next |printf()| call and possible others elsewhere.
buf[count] = '\0';
printf("read %d bytes: %s\n", count, buf);
}
Received(count);
total += count;
}
printf("read %d bytes\n", total);
return rv;
}
nsShortReader(nsIInputStream* in) : mIn(in), mReceived(0) {
mMon = new Monitor("nsShortReader");
}
void Received(uint32_t count) {
MonitorAutoEnter mon(*mMon);
mReceived += count;
mon.Notify();
}
uint32_t WaitForReceipt(const uint32_t aWriteCount) {
MonitorAutoEnter mon(*mMon);
uint32_t result = mReceived;
while (result < aWriteCount) {
mon.Wait();
NS_ASSERTION(mReceived > result, "failed to receive");
result = mReceived;
}
mReceived = 0;
return result;
}
protected:
nsCOMPtr<nsIInputStream> mIn;
uint32_t mReceived;
Monitor* mMon;
};
NS_IMPL_THREADSAFE_ISUPPORTS1(nsShortReader, nsIRunnable)
nsresult
TestShortWrites(nsIInputStream* in, nsIOutputStream* out)
{
nsCOMPtr<nsShortReader> receiver = new nsShortReader(in);
if (!receiver)
return NS_ERROR_OUT_OF_MEMORY;
nsresult rv;
nsCOMPtr<nsIThread> thread;
rv = NS_NewThread(getter_AddRefs(thread), receiver);
if (NS_FAILED(rv)) return rv;
uint32_t total = 0;
for (uint32_t i = 0; i < ITERATIONS; i++) {
uint32_t writeCount;
char* buf = PR_smprintf("%d %s", i, kTestPattern);
uint32_t len = strlen(buf);
len = len * rand() / RAND_MAX;
len = NS_MAX(1, len);
rv = WriteAll(out, buf, len, &writeCount);
if (NS_FAILED(rv)) return rv;
NS_ASSERTION(writeCount == len, "didn't write enough");
total += writeCount;
if (gTrace)
printf("wrote %d bytes: %s\n", writeCount, buf);
PR_smprintf_free(buf);
//printf("calling Flush\n");
out->Flush();
//printf("calling WaitForReceipt\n");
#ifdef DEBUG
const uint32_t received =
#endif
receiver->WaitForReceipt(writeCount);
NS_ASSERTION(received == writeCount, "received wrong amount");
}
rv = out->Close();
if (NS_FAILED(rv)) return rv;
thread->Shutdown();
printf("wrote %d bytes\n", total);
return NS_OK;
}
////////////////////////////////////////////////////////////////////////////////
class nsPump : public nsIRunnable
{
public:
NS_DECL_ISUPPORTS
NS_IMETHOD Run() {
nsresult rv;
uint32_t count;
while (true) {
rv = mOut->WriteFrom(mIn, ~0U, &count);
if (NS_FAILED(rv)) {
printf("Write failed\n");
break;
}
if (count == 0) {
printf("EOF count = %d\n", mCount);
break;
}
if (gTrace) {
printf("Wrote: %d\n", count);
}
mCount += count;
}
mOut->Close();
return rv;
}
nsPump(nsIInputStream* in,
nsIOutputStream* out)
: mIn(in), mOut(out), mCount(0) {
}
protected:
nsCOMPtr<nsIInputStream> mIn;
nsCOMPtr<nsIOutputStream> mOut;
uint32_t mCount;
};
NS_IMPL_THREADSAFE_ISUPPORTS1(nsPump,
nsIRunnable)
nsresult
TestChainedPipes()
{
nsresult rv;
printf("TestChainedPipes\n");
nsCOMPtr<nsIInputStream> in1;
nsCOMPtr<nsIOutputStream> out1;
rv = TP_NewPipe(getter_AddRefs(in1), getter_AddRefs(out1), 20, 1999);
if (NS_FAILED(rv)) return rv;
nsCOMPtr<nsIInputStream> in2;
nsCOMPtr<nsIOutputStream> out2;
rv = TP_NewPipe(getter_AddRefs(in2), getter_AddRefs(out2), 200, 401);
if (NS_FAILED(rv)) return rv;
nsCOMPtr<nsPump> pump = new nsPump(in1, out2);
if (pump == nullptr) return NS_ERROR_OUT_OF_MEMORY;
nsCOMPtr<nsIThread> thread;
rv = NS_NewThread(getter_AddRefs(thread), pump);
if (NS_FAILED(rv)) return rv;
nsCOMPtr<nsReceiver> receiver = new nsReceiver(in2);
if (receiver == nullptr) return NS_ERROR_OUT_OF_MEMORY;
nsCOMPtr<nsIThread> receiverThread;
rv = NS_NewThread(getter_AddRefs(receiverThread), receiver);
if (NS_FAILED(rv)) return rv;
uint32_t total = 0;
for (uint32_t i = 0; i < ITERATIONS; i++) {
uint32_t writeCount;
char* buf = PR_smprintf("%d %s", i, kTestPattern);
uint32_t len = strlen(buf);
len = len * rand() / RAND_MAX;
len = NS_MAX(1, len);
rv = WriteAll(out1, buf, len, &writeCount);
if (NS_FAILED(rv)) return rv;
NS_ASSERTION(writeCount == len, "didn't write enough");
total += writeCount;
if (gTrace)
printf("wrote %d bytes: %s\n", writeCount, buf);
PR_smprintf_free(buf);
}
printf("wrote total of %d bytes\n", total);
rv = out1->Close();
if (NS_FAILED(rv)) return rv;
thread->Shutdown();
receiverThread->Shutdown();
return NS_OK;
}
////////////////////////////////////////////////////////////////////////////////
void
RunTests(uint32_t segSize, uint32_t segCount)
{
nsresult rv;
nsCOMPtr<nsIInputStream> in;
nsCOMPtr<nsIOutputStream> out;
uint32_t bufSize = segSize * segCount;
printf("Testing New Pipes: segment size %d buffer size %d\n", segSize, bufSize);
printf("Testing long writes...\n");
rv = TP_NewPipe(getter_AddRefs(in), getter_AddRefs(out), segSize, bufSize);
NS_ASSERTION(NS_SUCCEEDED(rv), "TP_NewPipe failed");
rv = TestPipe(in, out);
NS_ASSERTION(NS_SUCCEEDED(rv), "TestPipe failed");
printf("Testing short writes...\n");
rv = TP_NewPipe(getter_AddRefs(in), getter_AddRefs(out), segSize, bufSize);
NS_ASSERTION(NS_SUCCEEDED(rv), "TP_NewPipe failed");
rv = TestShortWrites(in, out);
NS_ASSERTION(NS_SUCCEEDED(rv), "TestPipe failed");
}
////////////////////////////////////////////////////////////////////////////////
#if 0
extern void
TestSegmentedBuffer();
#endif
int
main(int argc, char* argv[])
{
nsresult rv;
nsCOMPtr<nsIServiceManager> servMgr;
rv = NS_InitXPCOM2(getter_AddRefs(servMgr), NULL, NULL);
if (NS_FAILED(rv)) return rv;
if (argc > 1 && nsCRT::strcmp(argv[1], "-trace") == 0)
gTrace = true;
rv = TestChainedPipes();
NS_ASSERTION(NS_SUCCEEDED(rv), "TestChainedPipes failed");
RunTests(16, 1);
RunTests(4096, 16);
servMgr = 0;
rv = NS_ShutdownXPCOM( NULL );
NS_ASSERTION(NS_SUCCEEDED(rv), "NS_ShutdownXPCOM failed");
return 0;
}
////////////////////////////////////////////////////////////////////////////////
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