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Diffstat (limited to 'system/kernel/pdp_dpd_command.c')
-rw-r--r--system/kernel/pdp_dpd_command.c87
1 files changed, 87 insertions, 0 deletions
diff --git a/system/kernel/pdp_dpd_command.c b/system/kernel/pdp_dpd_command.c
new file mode 100644
index 0000000..0d3ecf1
--- /dev/null
+++ b/system/kernel/pdp_dpd_command.c
@@ -0,0 +1,87 @@
+
+/*
+ * Pure Data Packet header file. DPD command class
+ * Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+/* this object implements a dpd command queue and command object */
+
+#include "pdp.h"
+#include "pdp_dpd_command.h"
+
+void pdp_dpd_commandfactory_init(t_pdp_dpd_commandfactory *x, u32 size)
+{
+ x->nb_commands = 0;
+ x->command_size = size;
+ x->command = 0;
+}
+
+void _pdp_dpd_commandfactory_free(t_pdp_dpd_command *x)
+{
+ if (x) _pdp_dpd_commandfactory_free(x->next);
+ pdp_dealloc(x);
+}
+
+void pdp_dpd_commandfactory_free(t_pdp_dpd_commandfactory *x)
+{
+ _pdp_dpd_commandfactory_free(x->command);
+ x->command = 0;
+ x->nb_commands = 0;
+}
+
+
+/* factory method */
+t_pdp_dpd_command *pdp_dpd_commandfactory_get_new_command(t_pdp_dpd_commandfactory *x)
+{
+
+ t_pdp_dpd_command *c = x->command;
+ t_pdp_dpd_command *oldhead = c;
+
+ /* check if we can reuse */
+ while (c){
+ if (!c->used){
+ c->used = 1;
+ //post("reusing command %x", c, c->used);
+ return c;
+ }
+ //post("command %x is used %d", c, c->used);
+ c = c->next;
+ }
+
+ /* create a new command */
+ x->command = (t_pdp_dpd_command *)pdp_alloc(x->command_size);
+ x->command->next = oldhead;
+ x->command->used = 1;
+ x->nb_commands++;
+ //post("created command %x, nbcommands: %d", x->command, x->nb_commands);
+ return x->command;
+
+}
+
+
+/* (self)destructor */
+void pdp_dpd_command_suicide(void *x)
+{
+ t_pdp_dpd_command *c = (t_pdp_dpd_command *)x;
+ c->used = 0;
+ //post("command %x committed suicide %d", c, c->used);
+}
+
+
+
+