singleinstance_simple.c

A very simple example of a single instance integration without real-time audio on Linux. Ethernet tuning interface. Examples

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h> 
#include <sys/socket.h>
#include <netinet/in.h>
#include <pthread.h>
#include "AWECore.h"
#include "ProxyIDs.h"
#include "AWECoreUtils.h"
#include "TargetInfo.h"



AWEInstance g_AWEInstance;

static IOPinDescriptor g_InputPin[1];
static IOPinDescriptor g_OutputPin[1];

const void* g_module_descriptor_table[] =
{
    LISTOFCLASSOBJECTS
};

/* ----------------------------------------------------------------------
** Specify the size in 32-bit words of each of the heaps on this target
** ------------------------------------------------------------------- */
#define MASTER_HEAP_SIZE        (1024*1024)
#define FASTB_HEAP_SIZE         (1024*1024)
#define SLOW_HEAP_SIZE          (1024*1024)

UINT32 g_FastHeapA[MASTER_HEAP_SIZE];
UINT32 g_SlowHeap[MASTER_HEAP_SIZE];
UINT32 g_FastHeapB[MASTER_HEAP_SIZE];

//global packet buffers
UINT32 AWE_Packet_Buffer[264];
UINT32 AWE_Packet_Buffer_Reply[264];

void error(const char *msg)
{
    perror(msg);
    exit(1);
}

void *tuningPacketRxThread(void*)
{
    /*
        Tuning packets can be recieved and processed here. Another implementation 
        may choose to process the packet in another thread.
    */
     int sockfd, newsockfd;
     socklen_t clilen;
     unsigned char buffer[264];
     struct sockaddr_in serv_addr, cli_addr;
     int n;

    sockfd = socket(AF_INET, SOCK_STREAM, 0);
    if (sockfd < 0) 
    {
        error("ERROR opening socket");
    }

    memset(&serv_addr, 0, sizeof(serv_addr));

    serv_addr.sin_family = AF_INET;
    serv_addr.sin_addr.s_addr = INADDR_ANY;
    serv_addr.sin_port = htons(15098);

    if (bind(sockfd, (struct sockaddr *) &serv_addr,
              sizeof(serv_addr)) < 0) 
              {
                  error("ERROR on binding");
              }

    listen(sockfd,5);

     clilen = sizeof(cli_addr);
     newsockfd = accept(sockfd, 
                 (struct sockaddr *) &cli_addr, 
                 &clilen);

     if (newsockfd < 0) 
          error("ERROR on accept");
      int i=1;

/* Enter a tuning loop. This will be in a separate thread */
     printf( "entering loop ...\n");
     while(1)
     {
        memset((void*) AWE_Packet_Buffer, 0, 264);

        n = read(newsockfd,AWE_Packet_Buffer,264*sizeof(AWE_Packet_Buffer[0]));
        if (n < 0) error("ERROR reading from socket");

        volatile INT32 opcode = PACKET_OPCODE(AWE_Packet_Buffer);
        volatile UINT32 packetInstanceID = PACKET_INSTANCEID(AWE_Packet_Buffer); //snoop the instance ID off of the packet

        awe_packetProcess(&g_AWEInstance);       
        unsigned int plen = AWE_Packet_Buffer[0]>>16;
        n = write(newsockfd,AWE_Packet_Buffer,plen*sizeof(AWE_Packet_Buffer[0]));

        if (n < 0) error("ERROR writing to socket");
     }
    close(newsockfd);
    close(sockfd);
}



void InitializeAWEInstance()
{
    int ret = 0;

    //set memory for awe instance and initialize to 0's
    memset(&g_AWEInstance, 0, sizeof(AWEInstance));

    g_AWEInstance.instanceId = 0;

    g_AWEInstance.pInputPin = g_InputPin;
    g_AWEInstance.pOutputPin = g_OutputPin;

    g_AWEInstance.pPacketBuffer = AWE_Packet_Buffer;
    g_AWEInstance.pReplyBuffer = AWE_Packet_Buffer;

    g_AWEInstance.packetBufferSize = 264;

    g_AWEInstance.pModuleDescriptorTable = g_module_descriptor_table;

    UINT32 module_descriptor_table_size = sizeof(g_module_descriptor_table) / sizeof(g_module_descriptor_table[0]); 
    g_AWEInstance.numModules = module_descriptor_table_size;

    g_AWEInstance.numThreads = 1;
    g_AWEInstance.sampleRate = 48000.f;
    g_AWEInstance.fundamentalBlockSize = 32;
    g_AWEInstance.pFlashFileSystem = 0;

    g_AWEInstance.fastHeapASize = MASTER_HEAP_SIZE;
    g_AWEInstance.slowHeapSize = SLOW_HEAP_SIZE;
    g_AWEInstance.fastHeapBSize = FASTB_HEAP_SIZE;

    g_AWEInstance.pFastHeapA = g_FastHeapA;
    g_AWEInstance.pSlowHeap = g_SlowHeap;
    g_AWEInstance.pFastHeapB = g_FastHeapB;

    g_AWEInstance.coreSpeed = 10e6f;
    g_AWEInstance.profileSpeed = 10e6f;
    g_AWEInstance.pName = TARGET_NAME;


    ret = awe_initPin(g_InputPin, INPUT_CHANNEL_COUNT, NULL);
    if (ret != 0)
    {
        printf("awe_initPin inputPin failed\n");
    }
    ret = awe_initPin(g_OutputPin, OUTPUT_CHANNEL_COUNT, NULL);
    if (ret != 0)
    {
        printf("awe_initPin outputPin failed\n");
    }

    ret = awe_init(&g_AWEInstance);
    if (ret != 0) 
    {
        printf("awe_init instance 1 failed\n");
    }
}

int main( int argc, const char* argv[] )
{
    pthread_t rxthread_id;
    pthread_t processthread_id;
    InitializeAWEInstance();
    pthread_create(&rxthread_id, NULL, tuningPacketRxThread, NULL); 
    pthread_join(rxthread_id, NULL);

    while(1) 
    {
        //printf("main idle loop")
    }   
}

Filename: singleinstance_simple.c

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Updated on 2026-02-10 at 15:44:34 -0500