#ifdef PETSC_RCS_HEADER
static char vcid[] = "$Id: snesregi.c,v 1.25 1998/04/20 19:48:53 curfman Exp curfman $";
#endif

#include "src/snes/snesimpl.h"     /*I  "snes.h"  I*/
extern int SNESCreate_EQ_LS(SNES);
extern int SNESCreate_EQ_TR(SNES);
extern int SNESCreate_UM_TR(SNES);
extern int SNESCreate_UM_LS(SNES);
extern int SNESCreate_Test(SNES);

/*M
   SNESRegister - Adds a method to the nonlinear solver package.

   Synopsis:
   SNESRegister(char *name_solver,char *path,char *name_create,int (*routine_create)(SNES))

   Input Parameters:
.  name_solver - name of a new user-defined solver
.  path - path (either absolute or relative) the library containing this solver
.  name_create - name of routine to create method context
.  routine_create - routine to create method context

   Notes:
   SNESRegister() may be called multiple times to add several user-defined solvers.

   If dynamic libraries are used, then the fourth input argument (routine_create)
   is ignored.

   Sample usage:
   SNESRegister("my_solver",/home/username/my_lib/lib/libg/solaris/mylib.a,
                "MySolverCreate",MySolverCreate);

   Then, your solver can be chosen with the procedural interface via
$     SNESSetType(snes,"my_solver")
   or at runtime via the option
$     -snes_type my_solver

.keywords: SNES, nonlinear, register

.seealso: SNESRegisterAll(), SNESRegisterDestroy()
M*/

#if defined(USE_DYNAMIC_LIBRARIES)
#define SNESRegister(a,b,c,d) SNESRegister_Private(a,b,c,0)
#else
#define SNESRegister(a,b,c,d) SNESRegister_Private(a,b,c,d)
#endif

#undef __FUNC__  
#define __FUNC__ "SNESRegister_Private"
static int SNESRegister_Private(char *sname,char *path,char *name,int (*function)(SNES))
{
  char fullname[256];
  int  ierr;

  PetscFunctionBegin;
  PetscStrcpy(fullname,path); PetscStrcat(fullname,":");PetscStrcat(fullname,name);
  ierr = DLRegister(&SNESList,sname,fullname, (int (*)(void*))function);CHKERRQ(ierr);
  PetscFunctionReturn(0);
}
  
/*
      This is used by SNESSetType() to make sure that at least one 
    SNESRegisterAll() is called. In general, if there is more than one
    DLL then SNESRegisterAll() may be called several times.
*/
extern int SNESRegisterAllCalled;

#undef __FUNC__  
#define __FUNC__ "SNESRegisterAll"
/*@C
  SNESRegisterAll - Registers all of the nonlinear solver methods in the SNES package.

  Not Collective

.keywords: SNES, register, all

.seealso:  SNESRegisterDestroy()
@*/
int SNESRegisterAll(char *path)
{
  int ierr;

  PetscFunctionBegin;
  SNESRegisterAllCalled = 1;

  ierr = SNESRegister("ls",   path,"SNESCreate_EQ_LS",SNESCreate_EQ_LS);CHKERRQ(ierr);
  ierr = SNESRegister("tr",   path,"SNESCreate_EQ_TR",SNESCreate_EQ_TR);CHKERRQ(ierr);
  ierr = SNESRegister("test", path,"SNESCreate_Test", SNESCreate_Test);CHKERRQ(ierr);
  ierr = SNESRegister("umtr", path,"SNESCreate_UM_TR",SNESCreate_UM_TR);CHKERRQ(ierr);
  ierr = SNESRegister("umls", path,"SNESCreate_UM_LS",SNESCreate_UM_LS);CHKERRQ(ierr);

  PetscFunctionReturn(0);
}