matlab_gs_putenv.c File Reference

#include <stdio.h>
#include <string.h>
#include <matrix.h>
#include <mex.h>
#include "matlab_gs.h"

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Functions
void	matlab_gs_putenv (int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[])

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Detailed Description

Matlab client call

Definition in file matlab_gs_putenv.c.

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Function Documentation

void matlab_gs_putenv	(	int	nlhs,
		mxArray *	plhs[],
		int	nrhs,
		const mxArray *	prhs[]
	)

Put a variable=value pair into the environment (gs_putenv("VAR=value")).

Parameters:

	nlhs	- Number of left hand side arguments from Matlab
	plhs	- Pointer to left hand side arguments from Matlab
	rlhs	- Number of right hand side arguments from Matlab
	plhs	- Pointer to right hand side arguments from Matlab

Definition at line 27 of file matlab_gs_putenv.c.

{
  char *env_equal_val;
  int i, len, retval;

  /* Check arguments */
  if (nrhs != 2) {
    mexPrintf("Usage: gs_putenv('VAR=value') \n");
    goto error;
  }

  /* Get string */
  if (!mxIsChar(prhs[1])) goto error;
  len = (mxGetM(prhs[1]) * mxGetN(prhs[1]) * sizeof(mxChar)) + 1;
  if ((env_equal_val = matlab_gs_calloc(len, 1)) == NULL) goto error;
  if (mxGetString(prhs[1],env_equal_val,len) != 0) goto error;
  
  retval = putenv(env_equal_val);

  if (nlhs > 1) {
      plhs[0] = mxCreateDoubleMatrix(1,1,mxREAL);
      mxGetPr(plhs[0])[0] = (double)retval;
  }
  
  /* Finalize */
  return;

/* Error handling */
 error:
  for (i=0;i<nlhs;i++) plhs[i] = mxCreateDoubleMatrix(0,0,mxREAL);
  mexPrintf("Warning: GridSolve call failed: %d:%d: %s; %s\n", grpc_errno, grpc_minor_errno, grpc_error_string(grpc_errno), grpc_minor_error_string(grpc_minor_errno));  
  return;
}

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