Actual source code: closeport.c

  1: /* This was part of the MatlabSockettool package. 
  2:  
  3:         Written by Barry Smith, bsmith@mcs.anl.gov 4/14/92
  4:          Updated by Ridhard Katz, katz@ldeo.columbia.edu 9/28/03
  5: */

 7:  #include petsc.h
  8: #if defined(PETSC_NEEDS_UTYPE_TYPEDEFS)
  9: typedef unsigned char   u_char;
 10: typedef unsigned short  u_short;
 11: typedef unsigned short  ushort;
 12: typedef unsigned int    u_int;
 13: typedef unsigned long   u_long;
 14: #endif
 15: #include <stdio.h>
 16: #include <errno.h>
 17: #include <sys/types.h>
 18: #include <sys/socket.h>
 19: #include <sys/wait.h>
 20: #include <netinet/in.h>
 21: #include <netdb.h>
 22: #include <fcntl.h>
 23:  #include src/sys/src/viewer/impls/socket/socket.h
 24: #include "mex.h"
 25: #define PETSC_MEX_ERROR(a) {fprintf(stdout,"CLOSEPORT: %s \n",a); return ;}
 26: typedef struct { int onoff; int time; } Linger;
 27: /*-----------------------------------------------------------------*/
 28: /*                                                                 */
 29: /*-----------------------------------------------------------------*/
 32: void mexFunction(int nlhs,mxArray *plhs[],int nrhs,const mxArray *prhs[])
 33: {
 34:   int    t = 0;
 35:   Linger linger;

 37:   linger.onoff = 1;
 38:   linger.time  = 0;

 40:   if (!nrhs) PETSC_MEX_ERROR("Needs one argument, the port");
 41:   t = (int)*mxGetPr(prhs[0]);

 43:   if (setsockopt(t,SOL_SOCKET,SO_LINGER,(char*)&linger,sizeof(Linger)))
 44:     PETSC_MEX_ERROR("Setting linger");
 45:   if (close(t)) PETSC_MEX_ERROR("closing socket");
 46:   return;
 47: }