static gboolean
gnm_glpk_start (GnmSolver *sol, WorkbookControl *wbc, GError **err,
GnmGlpk *lp)
{
GnmSubSolver *subsol = GNM_SUB_SOLVER (sol);
gboolean ok;
gchar *argv[9];
int argc = 0;
GnmSolverParameters *param = sol->params;
const char *binary;
g_return_val_if_fail (sol->status == GNM_SOLVER_STATUS_PREPARED, FALSE);
binary = gnm_conf_get_plugin_glpk_glpsol_path ();
if (binary == NULL || *binary == 0)
binary = SOLVER_PROGRAM;
argv[argc++] = (gchar *)binary;
argv[argc++] = (gchar *)(param->options.automatic_scaling
? "--scale"
: "--noscale");
argv[argc++] = (gchar *)"--write";
argv[argc++] = lp->result_filename;
if (lp->ranges_filename) {
argv[argc++] = (gchar *)"--ranges";
argv[argc++] = lp->ranges_filename;
}
argv[argc++] = (gchar *)"--cpxlp";
argv[argc++] = subsol->program_filename;
argv[argc] = NULL;
g_assert (argc < (int)G_N_ELEMENTS (argv));
ok = gnm_sub_solver_spawn (subsol, argv,
cb_child_setup, NULL,
NULL, NULL,
NULL, NULL,
err);
if (!ok && err &&
g_error_matches (*err, G_SPAWN_ERROR, G_SPAWN_ERROR_NOENT)) {
g_clear_error (err);
g_set_error (err, G_SPAWN_ERROR, G_SPAWN_ERROR_NOENT,
_("The %s program was not found. You can either "
"install it or use another solver. "
"For more information see %s"),
SOLVER_PROGRAM,
SOLVER_URL);
}
return ok;
}
static gboolean
gnm_lpsolve_start (GnmSolver *sol, WorkbookControl *wbc, GError **err,
GnmLPSolve *lp)
{
GnmSubSolver *subsol = GNM_SUB_SOLVER (sol);
gboolean ok;
gchar *argv[5];
int argc = 0;
GnmSolverParameters *param = sol->params;
g_return_val_if_fail (sol->status == GNM_SOLVER_STATUS_PREPARED, FALSE);
argv[argc++] = (gchar *)SOLVER_PROGRAM;
argv[argc++] = (gchar *)"-i";
argv[argc++] = (gchar *)(param->options.automatic_scaling
? "-s1"
: "-s0");
argv[argc++] = subsol->program_filename;
argv[argc] = NULL;
g_assert (argc < (int)G_N_ELEMENTS (argv));
ok = gnm_sub_solver_spawn (subsol, argv,
cb_child_setup, NULL,
(GIOFunc)cb_read_stdout, lp,
NULL, NULL,
err);
if (!ok && err &&
g_error_matches (*err, G_SPAWN_ERROR, G_SPAWN_ERROR_NOENT)) {
g_clear_error (err);
g_set_error (err, G_SPAWN_ERROR, G_SPAWN_ERROR_NOENT,
_("The %s program was not found. You can either "
"install it or use another solver. "
"For more information see %s"),
SOLVER_PROGRAM,
SOLVER_URL);
}
return ok;
}
