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// test-process-main.cpp
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "../../slang-com-helper.h"
#include "../../source/core/slang-string.h"
#include "../../source/core/slang-io.h"
#include "../../source/core/slang-string-util.h"
#include "../../source/core/slang-process-util.h"
#include "../../source/core/slang-test-tool-util.h"
#include "../../source/core/slang-http.h"
namespace TestProcess
{
using namespace Slang;
static void _makeStdStreamsUnbuffered()
{
// Make these streams unbuffered
setvbuf(stdout, nullptr, _IONBF, 0);
setvbuf(stderr, nullptr, _IONBF, 0);
}
static SlangResult _outputCount(int argc, const char* const* argv)
{
if (argc < 3)
{
return SLANG_FAIL;
}
// Get the count
const Index count = StringToInt(argv[2]);
// If we want to crash
Index crashIndex = -1;
if (argc > 3)
{
// When we crash, we want to make sure everything is flushed...
_makeStdStreamsUnbuffered();
crashIndex = StringToInt(argv[3]);
}
FILE* fileOut = stdout;
StringBuilder buf;
for (Index i = 0; i < count; ++i)
{
buf.Clear();
buf << i << "\n";
fwrite(buf.getBuffer(), 1, buf.getLength(), fileOut);
if (i == crashIndex)
{
// Use to simulate a crash.
SLANG_BREAKPOINT(0);
throw;
}
}
// NOTE! There is no flush here, we want to see if everything works if we just stream out.
return SLANG_OK;
}
static SlangResult _outputReflect()
{
// Read lines from std input.
// When hit line with just 'end', terminate
// Get in as Stream
RefPtr<Stream> stdinStream;
Process::getStdStream(Process::StreamType::StdIn, stdinStream);
FILE* fileOut = stdout;
List<Byte> buffer;
Index lineCount = 0;
Index startIndex = 0;
while (true)
{
SLANG_RETURN_ON_FAIL(StreamUtil::read(stdinStream, 0, buffer));
while (true)
{
UnownedStringSlice slice((const char*)buffer.begin() + startIndex, (const char*)buffer.end());
UnownedStringSlice line;
if (!StringUtil::extractLine(slice, line) || slice.begin() == nullptr)
{
break;
}
// Process the line
if (line == UnownedStringSlice::fromLiteral("end"))
{
return SLANG_OK;
}
// Write the text to the output stream
fwrite(line.begin(), 1, line.getLength(), fileOut);
fputc('\n', fileOut);
lineCount++;
// Move the start index forward
const Index newStartIndex = slice.begin() ? Index(slice.begin() - (const char*)buffer.getBuffer()) : buffer.getCount();
SLANG_ASSERT(newStartIndex > startIndex);
startIndex = newStartIndex;
}
}
}
static SlangResult _httpReflect(int argc, const char* const* argv)
{
SLANG_UNUSED(argc);
SLANG_UNUSED(argv);
RefPtr<Stream> stdinStream, stdoutStream;
Process::getStdStream(Process::StreamType::StdIn, stdinStream);
Process::getStdStream(Process::StreamType::StdOut, stdoutStream);
RefPtr<BufferedReadStream> readStream(new BufferedReadStream(stdinStream));
RefPtr<HTTPPacketConnection> connection = new HTTPPacketConnection(readStream, stdoutStream);
while (connection->isActive())
{
// Block waiting for content (or error/closed)
SLANG_RETURN_ON_FAIL(connection->waitForResult());
// If we have content do something with it
if (connection->hasContent())
{
auto content = connection->getContent();
// If it just holds 'end' then we are done
const UnownedStringSlice slice((const char*)content.begin(), content.getCount());
if (slice == UnownedStringSlice::fromLiteral("end"))
{
break;
}
// Else reflect it back
SLANG_RETURN_ON_FAIL(connection->write(content.begin(), content.getCount()));
// Consume that content/packet
connection->consumeContent();
}
}
return SLANG_OK;
}
static SlangResult execute(int argc, const char*const* argv)
{
if (argc < 2)
{
return SLANG_FAIL;
}
// Get the tool name
const String toolName = argv[1];
if (toolName == "reflect")
{
return _outputReflect();
}
else if (toolName == "count")
{
return _outputCount(argc, argv);
}
else if (toolName == "http-reflect")
{
return _httpReflect(argc, argv);
}
return SLANG_E_NOT_AVAILABLE;
}
} // namespace TestProcess
int main(int argc, const char* const* argv)
{
SlangResult res = TestProcess::execute(argc, argv);
return (int)Slang::TestToolUtil::getReturnCode(res);
}
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