formatted_io1 Example

Python Version

Model Code:

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# Import classes for input/output channels
from cis_interface.interface.CisInterface import CisInput, CisOutput

# Initialize input/output channels
in_channel = CisInput('inputA')
out_channel = CisOutput('outputA')

# Loop until there is no longer input or the queues are closed
while True:

    # Receive input from input channel
    # If there is an error, the flag will be False
    flag, msg = in_channel.recv()
    if not flag:
        print("Model A: No more input.")
        break

    # Print received message
    print('Model A: %s' % msg)

    # Send output to output channel
    # If there is an error, the flag will be False
    flag = out_channel.send(msg)
    if not flag:
        raise RuntimeError("Model A: Error sending output.")

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# Import classes for input/output channels
from cis_interface.interface.CisInterface import CisInput, CisOutput

# Initialize input/output channels
in_channel = CisInput('inputB')
out_channel = CisOutput('outputB')

# Loop until there is no longer input or the queues are closed
while True:

    # Receive input from input channel
    # If there is an error, the flag will be False
    flag, msg = in_channel.recv()
    if not flag:
        print("Model B: No more input.")
        break

    # Print received message
    print('Model B: %s' % msg)

    # Send output to output channel
    # If there is an error, the flag will be False
    flag = out_channel.send(msg)
    if not flag:
        raise RuntimeError("Model B: Error sending output.")

Model YAML:

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models:
  - name: python_modelA
    language: python
    args: ./src/formatted_io1_modelA.py
    inputs: inputA
    outputs: outputA

  - name: python_modelB
    language: python
    args: ./src/formatted_io1_modelB.py
    inputs: inputB
    outputs: outputB

connections:
  - input: outputA  # Connection between model A output & model B input
    output: inputB
  - input: ./Input/input.txt  # Connection between file and model A input
    output: inputA
    filetype: ascii
  - input: outputB  # Connection between model B output and file
    output: ./output.txt
    filetype: ascii

Matlab Version

Model Code:

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% Initialize input/output channels 
in_channel = CisInterface('CisInput', 'inputA');
out_channel = CisInterface('CisOutput', 'outputA');

flag = true;

% Loop until there is no longer input or the queues are closed
while flag

  % Receive input from input channel
  % If there is an error, the flag will be False.
  [flag, msg] = in_channel.recv();
  if (~flag)
    disp('Model A: No more input.');
    break;
  end;

  % Print received message
  fprintf('Model A: %s\n', msg);

  % Send output to output channel
  % If there is an error, the flag will be False
  flag = out_channel.send(msg);
  if (~flag)
    error('Model A: Error sending output.');
    break;
  end;
  
end;

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% Initialize input/output channels 
in_channel = CisInterface('CisInput', 'inputB');
out_channel = CisInterface('CisOutput', 'outputB');

flag = true;

% Loop until there is no longer input or the queues are closed
while flag

  % Receive input from input channel
  % If there is an error, the flag will be False.
  [flag, msg] = in_channel.recv();
  if (~flag)
    disp('Model B: No more input.');
    break;
  end;

  % Print received message
  fprintf('Model B: %s\n', msg);

  % Send output to output channel
  % If there is an error, the flag will be False
  flag = out_channel.send(msg);
  if (~flag)
    error('Model B: Error sending output.');
    break;
  end;
  
end;

Model YAML:

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models:
  - name: matlab_modelA
    language: matlab
    args: ./src/formatted_io1_modelA.m
    inputs: inputA
    outputs: outputA

  - name: matlab_modelB
    language: matlab
    args: ./src/formatted_io1_modelB.m
    inputs: inputB
    outputs: outputB

connections:
  - input: outputA  # Connection between model A output & model B input
    output: inputB
  - input: ./Input/input.txt  # Connection between file and model A input
    output: inputA
    filetype: ascii
  - input: outputB  # Connection between model B output and file
    output: ./output.txt
    filetype: ascii

C Version

Model Code:

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#include <stdio.h>
// Include methods for input/output channels
#include "CisInterface.h"

#define MYBUFSIZ 1000

int main(int argc, char *argv[]) {
  // Initialize input/output channels
  cisInput_t in_channel = cisInput("inputA");
  cisOutput_t out_channel = cisOutput("outputA");

  // Declare resulting variables and create buffer for received message
  int flag = 1;
  size_t msg_siz = 0;
  char *msg = NULL;

  // Loop until there is no longer input or the queues are closed
  while (flag >= 0) {

    // Receive input from input channel
    // If there is an error, the flag will be negative
    // Otherwise, it is the number of variables filled
    flag = cisRecvRealloc(in_channel, &msg, &msg_siz);
    if (flag < 0) {
      printf("Model A: No more input.\n");
      break;
    }

    // Print received message
    printf("Model A: %s\n", msg);

    // Send output to output channel
    // If there is an error, the flag will be negative
    flag = cisSend(out_channel, msg, msg_siz);
    if (flag < 0) {
      printf("Model A: Error sending output.\n");
      break;
    }

  }
  
  return 0;
}


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#include <stdio.h>
// Include methods for input/output channels
#include "CisInterface.h"

#define MYBUFSIZ 1000

int main(int argc, char *argv[]) {
  // Initialize input/output channels
  cisInput_t in_channel = cisInput("inputB");
  cisOutput_t out_channel = cisOutput("outputB");

  // Declare resulting variables and create buffer for received message
  int flag = 1;
  size_t msg_siz = 0;
  char *msg = NULL;

  // Loop until there is no longer input or the queues are closed
  while (flag >= 0) {
  
    // Receive input from input channel
    // If there is an error, the flag will be negative
    // Otherwise, it is the size of the received message
    flag = cisRecvRealloc(in_channel, &msg, &msg_siz);
    if (flag < 0) {
      printf("Model B: No more input.\n");
      break;
    }

    // Print received message
    printf("Model B: %s\n", msg);

    // Send output to output channel
    // If there is an error, the flag will be negative
    flag = cisSend(out_channel, msg, msg_siz);
    if (flag < 0) {
      printf("Model B: Error sending output.\n");
      break;
    }

  }
  
  return 0;
}

Model YAML:

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models:
  - name: c_modelA
    language: c
    args: ./src/formatted_io1_modelA.c
    inputs: inputA
    outputs: outputA

  - name: c_modelB
    language: c
    args: ./src/formatted_io1_modelB.c
    inputs: inputB
    outputs: outputB

connections:
  - input: outputA  # Connection between model A output & model B input
    output: inputB
  - input: ./Input/input.txt  # Connection between file and model A input
    output: inputA
    filetype: ascii
  - input: outputB  # Connection between model B output and file
    output: ./output.txt
    filetype: ascii

C++ Version

Model Code:

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#include <iostream>
// Include methods for input/output channels
#include "CisInterface.hpp"

#define MYBUFSIZ 1000

int main(int argc, char *argv[]) {
  // Initialize input/output channels
  CisInput in_channel("inputA");
  CisOutput out_channel("outputA");

  // Declare resulting variables and create buffer for received message
  int flag = 1;
  size_t msg_siz = 0;
  char *msg = NULL;
  size_t * const p_msg_siz = &msg_siz; // Required in C++ to get msg size

  // Loop until there is no longer input or the queues are closed
  while (flag >= 0) {
  
    // Receive input from input channel
    // If there is an error, the flag will be negative
    // Otherwise, it is the size of the received message
    flag = in_channel.recvRealloc(2, &msg, &msg_siz);
    if (flag < 0) {
      std::cout << "Model A: No more input." << std::endl;
      break;
    }

    // Print received message
    std::cout << "Model A: " << msg << std::endl;

    // Send output to output channel
    // If there is an error, the flag will be negative
    flag = out_channel.send(2, msg, msg_siz);
    if (flag < 0) {
      std::cout << "Model A: Error sending output." << std::endl;
      break;
    }

  }
  
  return 0;
}

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#include <iostream>
// Include methods for input/output channels
#include "CisInterface.hpp"

#define MYBUFSIZ 1000

int main(int argc, char *argv[]) {
  // Initialize input/output channels
  CisInput in_channel("inputB");
  CisOutput out_channel("outputB");

  // Declare resulting variables and create buffer for received message
  int flag = 1;
  size_t msg_siz = 0;
  char *msg = NULL;
  size_t * const p_msg_siz = &msg_siz; // Required in C++ to get msg size

  // Loop until there is no longer input or the queues are closed
  while (flag >= 0) {
  
    // Receive input from input channel
    // If there is an error, the flag will be negative
    // Otherwise, it is the size of the received message
    flag = in_channel.recvRealloc(2, &msg, &msg_siz);
    if (flag < 0) {
      std::cout << "Model B: No more input." << std::endl;
      break;
    }

    // Print received message
    std::cout << "Model B: " << msg << std::endl;

    // Send output to output channel
    // If there is an error, the flag will be negative
    flag = out_channel.send(2, msg, msg_siz);
    if (flag < 0) {
      std::cout << "Model B: Error sending output." << std::endl;
      break;
    }

  }
  
  return 0;
}

Model YAML:

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models:
  - name: cpp_modelA
    language: c++
    args: ./src/formatted_io1_modelA.cpp
    inputs: inputA
    outputs: outputA

  - name: cpp_modelB
    language: c++
    args: ./src/formatted_io1_modelB.cpp
    inputs: inputB
    outputs: outputB

connections:
  - input: outputA  # Connection between model A output & model B input
    output: inputB
  - input: ./Input/input.txt  # Connection between file and model A input
    output: inputA
    filetype: ascii
  - input: outputB  # Connection between model B output and file
    output: ./output.txt
    filetype: ascii