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|
/*****************************************************************
|
| RingBuffer Test Program 1
|
| (c) 2001-2005 Gilles Boccon-Gibod
| Author: Gilles Boccon-Gibod (bok@bok.net)
|
****************************************************************/
/*----------------------------------------------------------------------
| includes
+---------------------------------------------------------------------*/
#include "Neptune.h"
#include <stdlib.h>
#if defined(WIN32)
#include <crtdbg.h>
#endif
const unsigned int BUFFER_SIZE = 17;
/*----------------------------------------------------------------------
| ReadChunk
+---------------------------------------------------------------------*/
static NPT_Result
ReadChunk(NPT_RingBuffer& buffer)
{
static unsigned int total_read = 0;
unsigned int chunk = rand()%BUFFER_SIZE;
unsigned int can_read = buffer.GetAvailable();
if (chunk > can_read) chunk = can_read;
if (chunk == 0) return NPT_SUCCESS;
// read a chunk
unsigned char bytes[BUFFER_SIZE];
NPT_CHECK(buffer.Read(bytes, chunk));
// check values
for (unsigned int i=0; i<chunk; i++) {
unsigned int index = total_read+i;
unsigned char expected = index & 0xFF;
if (bytes[i] != expected) {
printf("unexpected byte at index %d (expected %d, got %d)\n",
index, expected, bytes[i]);
return NPT_FAILURE;
}
}
total_read += chunk;
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| WriteChunk
+---------------------------------------------------------------------*/
static NPT_Result
WriteChunk(NPT_RingBuffer& buffer)
{
static unsigned int total_written = 0;
unsigned int chunk = rand()%BUFFER_SIZE;
unsigned int can_write = buffer.GetSpace();
if (chunk > can_write) chunk = can_write;
if (chunk == 0) return NPT_SUCCESS;
// generate buffer
unsigned char bytes[BUFFER_SIZE];
for (unsigned int i=0; i<chunk; i++) {
unsigned int index = total_written+i;
bytes[i] = index&0xFF;
}
// write chunk
NPT_CHECK(buffer.Write(bytes, chunk));
total_written += chunk;
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| main
+---------------------------------------------------------------------*/
int
main(int /*argc*/, char** /*argv*/)
{
// setup debugging
#if defined(WIN32) && defined(_DEBUG)
int flags = _crtDbgFlag |
_CRTDBG_ALLOC_MEM_DF |
_CRTDBG_DELAY_FREE_MEM_DF |
_CRTDBG_CHECK_ALWAYS_DF;
_CrtSetDbgFlag(flags);
//AllocConsole();
//freopen("CONOUT$", "w", stdout);
#endif
NPT_RingBuffer buffer(BUFFER_SIZE);
for (int i=0; i<100000000; i++) {
if (NPT_FAILED(WriteChunk(buffer))) {
printf("WriteChunk failed\n");
return 1;
}
if (NPT_FAILED(ReadChunk(buffer))) {
printf("ReadChunk failed\n");
return 1;
}
}
printf("RingBufferTest1 passed\n");
return 0;
}
|
