/** * Read the data back * @param dst buffer of received data * @param size size of the received data * @return MCAPI_SUCCESS/error */ mcapi_status_t read_data(void *dst, mcapi_uint32_t *size) { mcapi_status_t status = MCAPI_ERR_GENERAL; size_t rx = 0; int count = 0; /** sanity check */ assert(NULL != dst); assert(NULL != size); *size = 0; do { mcapi_msg_recv(data_recv_endpoint, dst, MCAPI_MAX_MSG_SIZE, &rx, &status); #ifdef DEBUG_INFO if (MCAPI_SUCCESS != status) { fprintf(stdout, "[%s] %d status: %d mcapi_msg_recv failure\n", __FILE__, __LINE__, status); exit(1); } #endif *size += rx; dst = (unsigned char *) dst + MCAPI_MAX_MSG_SIZE; } while (MCAPI_MAX_MSG_SIZE == rx); return status; }
/***************************************************************************** * read_mcapi_msg *****************************************************************************/ int read_mcapi_msg(int index, char* buf, int buf_size) { mcapi_status_t status; size_t msgsize = 0; mcapi_msg_recv(local_endpts[index].endpts[READ_IDX], (void *) buf, buf_size, &msgsize, &status); if (status != MCAPI_SUCCESS) { th_log_error("Task id %d failed to recv msg: %s\n", index, mcapi_display_status(status,status_buff,sizeof(status_buff))); return -1; } return (int) msgsize; }
/** * dsp receive dsp cmd * @return MCAPI_SUCCESS/ error code */ mcapi_status_t receive_dsp_cmd(mcapi_uint32_t *cmd) { mcapi_status_t status = MCAPI_ERR_GENERAL; size_t rcv_size = 0; /** Sanity Check */ assert(NULL != cmd); /** receive the command */ mcapi_msg_recv(dsp_command_endpoint, (void *) cmd, sizeof(mcapi_uint32_t), &rcv_size, &status); #ifdef DEBUG_INFO if (MCAPI_SUCCESS != status) { fprintf(stdout, "[%s] %d status: %d mcapi_msg_recv failure\n", __FILE__, __LINE__, status); exit(1); } #endif return status; }
int main(int argc,char * argv[]) { int process_num=sysconf(_SC_NPROCESSORS_CONF); printf("%i processors() in KeyStoneII system.\n\r",process_num); cpu_set_t mask; int myid= atoi(argv[1]); CPU_ZERO(&mask); CPU_SET(myid,&mask); if(sched_setaffinity(getpid(),sizeof(mask),&mask)==-1) { printf("Error: set CPU affinity failed.\n\r"); return 0; } printf("Set CPU affinity success!\n\r"); usleep(3000000); if(CPU_ISSET(myid, &mask)) { printf("RECV is running on Processor %i\n\r",myid); } usleep(3000000); mcapi_status_t status; mcapi_info_t info; char status_msg[MCAPI_MAX_STATUS_MSG_LEN]; size_t received_size; char recv_buf[BUFLEN]=""; mcapi_request_t request; mcapi_endpoint_t recv_msg_point; mcapi_initialize(THE_DOMAIN,YELLOW_NODE,0,0,&info,&status); recv_msg_point=mcapi_endpoint_create(YELLOW_MSG,&status); mcapi_msg_recv(recv_msg_point,recv_buf,BUFLEN,&received_size,&status); usleep(3000000); printf("recviced message: %s\n\r",recv_buf); mcapi_finalize(&status); return EXIT_SUCCESS; }
int main(int argc, char *argv[]) { //the endpoints used in message-oriented communication mcapi_endpoint_t red_msg_point; mcapi_endpoint_t yellow_msg_point; mcapi_endpoint_t green_msg_point; //the endpoints used in channel-oriented communication mcapi_endpoint_t yellow_sin_chan; mcapi_endpoint_t yellow_cos_chan; mcapi_endpoint_t yellow_pkt_chan; //status message received in almost all MCAPI-calls mcapi_status_t status; //info-struct received in initialization mcapi_info_t info; //buffer for incoming messages char recv_buf[MAX_MSG_LEN]; //the status code converted to string char status_msg[MCAPI_MAX_STATUS_MSG_LEN]; //size parameter required in some calls size_t size = 1; //an iterator used in loops unsigned int i = 0; //request handle is used to operate wait-calls mcapi_request_t request; //a second request handle! just so that we see it works :) mcapi_request_t request2; //sandles used in channel-messaging mcapi_sclchan_recv_hndl_t sin_handle; mcapi_sclchan_recv_hndl_t cos_handle; mcapi_pktchan_send_hndl_t pkt_handle; //how many scalars we are expecting char count = 0; //buffer of data sent in messages unsigned char* send_buf; printf(COLOR "here\n"); //We are yellow! initialize accordingly mcapi_initialize( THE_DOMAIN, YELLOW_NODE, 0, 0, &info, &status ); check( MCAPI_SUCCESS, status ); //create our side of messaging yellow_msg_point = mcapi_endpoint_create( YELLOW_MSG, &status ); check( MCAPI_SUCCESS, status ); //obtain the red message point red_msg_point = mcapi_endpoint_get( THE_DOMAIN, RED_NODE, RED_MSG, TIMEOUT, &status ); check( MCAPI_SUCCESS, status ); printf(COLOR "start-up messaging\n"); //wait for the amount to come mcapi_msg_recv( yellow_msg_point, recv_buf, MAX_MSG_LEN, &size, &status ); check( MCAPI_SUCCESS, status ); //read the count from first byte count = recv_buf[0]; //surprise! this process reserves the buffer with malloc send_buf = (char*)malloc(count*2); //send ack send_buf[0] = 'a'; mcapi_msg_send( yellow_msg_point, red_msg_point, send_buf, 1, 0, &status ); check( MCAPI_SUCCESS, status ); printf(COLOR "start-up messaged with %u bytes. expecting %u scalars\n", size, count ); //open our channel endpoint to sin yellow_sin_chan = mcapi_endpoint_create( YELLOW_SIN, &status ); check( MCAPI_SUCCESS, status ); //open our channel endpoint to cos yellow_cos_chan = mcapi_endpoint_create( YELLOW_COS, &status ); check( MCAPI_SUCCESS, status ); //open our ends, let senders form connection mcapi_sclchan_recv_open_i( &sin_handle, yellow_sin_chan, &request, &status ); check( MCAPI_PENDING, status ); mcapi_sclchan_recv_open_i( &cos_handle, yellow_cos_chan, &request2, &status ); check( MCAPI_PENDING, status ); //wait for it to happen mcapi_wait( &request, &size, TIMEOUT, &status ); check( MCAPI_SUCCESS, status ); mcapi_wait( &request2, &size, TIMEOUT, &status ); check( MCAPI_SUCCESS, status ); printf(COLOR "beginning the receive value\n"); for ( i = 0; i < 15000; ++i ) { //an iterator used in loops unsigned int j = 0; //start to receveive stuff //i+=2 because our values are two bytes while buf is one byte for ( j = 0; j < count; ++j ) { //receive cos scalar short cval = mcapi_sclchan_recv_uint16( cos_handle, &status ); check( MCAPI_SUCCESS, status ); //receive sin scalar short sval = mcapi_sclchan_recv_uint16( sin_handle, &status ); check( MCAPI_SUCCESS, status ); //addition short sumval = sval + cval; //put to buf send_buf[j*2] = sumval; send_buf[j*2+1] = sumval >> 8; //printf( COLOR "%hX %hhX %hhX\n", sumval, send_buf[j*2], //send_buf[j*2+1] ); } } printf(COLOR "receiving done, closing scalar channels\n"); //close our ends mcapi_sclchan_recv_close_i( sin_handle, &request, &status ); check( MCAPI_PENDING, status ); mcapi_sclchan_recv_close_i( cos_handle, &request2, &status ); check( MCAPI_PENDING, status ); //wait for it to happen mcapi_wait( &request, &size, TIMEOUT, &status ); check( MCAPI_SUCCESS, status ); mcapi_wait( &request2, &size, TIMEOUT, &status ); check( MCAPI_SUCCESS, status ); printf(COLOR "closed, informing green\n"); //obtain their endpoint green_msg_point = mcapi_endpoint_get( THE_DOMAIN, GREEN_NODE, GREEN_MSG, TIMEOUT, &status ); check( MCAPI_SUCCESS, status ); //send the message mcapi_msg_send( yellow_msg_point, green_msg_point, send_buf, 1, 0, &status ); check( MCAPI_SUCCESS, status ); printf(COLOR "informed, opening packet channel\n"); //open our channel endpoint to green yellow_pkt_chan = mcapi_endpoint_create( YELLOW_PKT, &status ); check( MCAPI_SUCCESS, status ); //open our end, let receiver form connection mcapi_pktchan_send_open_i( &pkt_handle, yellow_pkt_chan, &request, &status ); check( MCAPI_PENDING, status ); //wait for it to happen mcapi_wait( &request, &size, TIMEOUT, &status ); check( MCAPI_SUCCESS, status ); //now send printf(COLOR "sending the packet\n"); mcapi_pktchan_send( pkt_handle, send_buf, count, &status ); //and now close printf(COLOR "sent the packet, closing\n"); mcapi_pktchan_send_close_i( pkt_handle, &request, &status ); check( MCAPI_PENDING, status ); mcapi_wait( &request, &size, TIMEOUT, &status ); check( MCAPI_SUCCESS, status ); printf(COLOR "closed, shutdown\n"); //free buf free( send_buf ); //shut-down mcapi_finalize( &status ); check( MCAPI_SUCCESS, status ); return EXIT_SUCCESS; }
int main() { //status message received in almost all MCAPI-calls mcapi_status_t status; //info-struct received in initialization mcapi_info_t info; //the status code converted to string char status_msg[MCAPI_MAX_STATUS_MSG_LEN]; //an iterator used in loops unsigned int i = 0; //request handle is used to operate wait-calls mcapi_request_t request; //size parameter required in some calls size_t size = 1; //send-handle used in channel-messaging mcapi_pktchan_send_hndl_t handy; //a separate receive buffer used for messages char recv_msg[MAX_MSG_LEN]; //get our stuff here. tip: if signed were used, it bastardized the values unsigned char* recv_buf; //the endpoints used in channel-oriented communication mcapi_endpoint_t green_chan; mcapi_endpoint_t yellow_chan; mcapi_endpoint_t green_msg_point; printf( COLOR "here\n"); //we are the green mcapi_initialize( THE_DOMAIN, GREEN_NODE, 0, 0, &info, &status ); check( MCAPI_SUCCESS, status ); //create our message endpoint green_msg_point = mcapi_endpoint_create( GREEN_MSG, &status ); check( MCAPI_SUCCESS, status ); //wait for the start signal mcapi_msg_recv(green_msg_point, recv_msg, MAX_MSG_LEN, &size, &status ); check( MCAPI_SUCCESS, status ); printf(COLOR "signal received, starting to connect & open\n"); //create our channel message endpoint green_chan = mcapi_endpoint_create( GREEN_PKT, &status ); check( MCAPI_SUCCESS, status ); //get their channel message endpoint yellow_chan = mcapi_endpoint_get( THE_DOMAIN, YELLOW_NODE, YELLOW_PKT, TIMEOUT, &status ); check( MCAPI_SUCCESS, status ); //form the channel mcapi_pktchan_connect_i( yellow_chan, green_chan, &request, &status ); check( MCAPI_PENDING, status ); //wait for it to happen mcapi_wait( &request, &size, TIMEOUT, &status ); check( MCAPI_SUCCESS, status ); //open our end mcapi_pktchan_recv_open_i( &handy, green_chan, &request, &status ); check( MCAPI_PENDING, status ); //wait for it to happen mcapi_wait( &request, &size, TIMEOUT, &status ); check( MCAPI_SUCCESS, status ); printf(COLOR "beginning the receive\n"); //start to receive our stuff mcapi_pktchan_recv( handy, (void*)&recv_buf, &size, &status ); check( MCAPI_SUCCESS, status ); printf(COLOR "retrieval done, closing\n"); //close our end mcapi_pktchan_recv_close_i( handy, &request, &status ); check( MCAPI_PENDING, status ); //wait for it to happen mcapi_wait( &request, &size, TIMEOUT, &status ); check( MCAPI_SUCCESS, status ); printf(COLOR "closed, go over the values\n"); //go through that stuff //i+=2 because our values are two bytes while buf is one byte for ( i = 0; i < size; i+=2 ) { //reconstruct the short short sumval = recv_buf[i+1] << 8 | recv_buf[i]; //printf( COLOR "%hX %hhX %hhX\n", sumval, recv_buf[i], recv_buf[i+1] ); } printf(COLOR "buffer release and shut down\n"); //release mcapi_pktchan_release( recv_buf, &status ); check( MCAPI_SUCCESS, status ); //finalize at the end, regardless of which process we are mcapi_finalize( &status ); check( MCAPI_SUCCESS, status ); return EXIT_SUCCESS; }
void *receiver(void* data) { char buffer[NUM_MSGS]; int count = 0; size_t recv_size; mca_status_t status; int i; mcapi_param_t parms; mcapi_info_t version; /* create a node */ mcapi_initialize(DOMAIN,NODE+1,NULL,&parms,&version,&status); if (status != MCAPI_SUCCESS) { fprintf(stderr,"\nFAIL: Failed to initialize: %s\n",mcapi_display_status(status,status_buff,sizeof(status_buff))); WRONG; } /* make recv endpoint */ recv_endpt = mcapi_endpoint_create(1,&status); if (status != MCAPI_SUCCESS) { fprintf(stderr,"\nFAIL: Failed to create recv endpoint: %s\n",mcapi_display_status(status,status_buff,sizeof(status_buff))); WRONG; } /* do the receives */ for (count = 0; count < NUM_MSGS; count++) { mcapi_msg_recv(recv_endpt, buffer, sizeof(buffer), &recv_size, &status); if ((status != MCAPI_SUCCESS) && (TIMEOUT)) { /* yield and then retry */ for (i = 0; i < TIMEOUT; i++) { if (status != MCAPI_SUCCESS) { fprintf(stderr,"\nWARNING: Recv failed: reason:%s recv_count:%d. Will yield and re-try.\n",mcapi_display_status(status,status_buff,sizeof(status_buff)),count); sched_yield(); mcapi_msg_recv(recv_endpt, buffer, sizeof(buffer), &recv_size, &status); } if (status == MCAPI_SUCCESS) { break; } } } if (status == MCAPI_SUCCESS) { printf("count=%d, Received: [%s]\n",count,buffer); } else { fprintf(stderr,"\nFAIL: Recv failed: reason:%s recv_count:%d.\n",mcapi_display_status(status,status_buff,sizeof(status_buff)),count); WRONG; } } /* finalize */ mcapi_finalize(&status); if (status != MCAPI_SUCCESS) { fprintf(stderr,"\nFAIL: Failed to finalize: %s\n",mcapi_display_status(status,status_buff,sizeof(status_buff))); WRONG; } return NULL; }