tm: export transaction context operations

All transactions may now hold additional context-specific data.
Data can be stored/fetched using the newly added functions in tm_binds.

modules/tm/h_table.c

@@ -276,7 +276,7 @@ struct cell*  build_cell( struct sip_msg* p_msg )
 	unsigned short set;
 
 	/* allocs a new cell */
-	new_cell = (struct cell*)shm_malloc( sizeof( struct cell ) );
+	new_cell = (struct cell*)shm_malloc(sizeof(struct cell) + context_size(CONTEXT_TRAN));
 	if  ( !new_cell ) {
 		ser_error=E_OUT_OF_MEM;
 		return NULL;

modules/tm/t_ctx.c

@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2014 OpenSIPS Solutions
+ *
+ * This file is part of opensips, a free SIP server.
+ *
+ * opensips 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
+ *
+ * opensips 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * History:
+ * --------
+ *  2014-10-30 initial version (liviu)
+ */
+
+#include "t_funcs.h"
+
+int t_ctx_register_int(void)
+{
+	return __context_register_int(CONTEXT_TRAN);
+}
+
+int t_ctx_register_str(void)
+{
+	return __context_register_str(CONTEXT_TRAN);
+}
+
+int t_ctx_register_ptr(void)
+{
+	return __context_register_ptr(CONTEXT_TRAN);
+}
+
+void t_ctx_put_int(struct cell *t, int pos, int data)
+{
+	__context_put_int(CONTEXT_TRAN, context_of(t), pos, data);
+}
+
+void t_ctx_put_str(struct cell *t, int pos, str *data)
+{
+	__context_put_str(CONTEXT_TRAN, context_of(t), pos, data);
+}
+
+void t_ctx_put_ptr(struct cell *t, int pos, void *data)
+{
+	__context_put_ptr(CONTEXT_TRAN, context_of(t), pos, data);
+}
+
+int t_ctx_get_int(struct cell *t, int pos)
+{
+	return __context_get_int(CONTEXT_TRAN, context_of(t), pos);
+}
+
+str *t_ctx_get_str(struct cell *t, int pos)
+{
+	return __context_get_str(CONTEXT_TRAN, context_of(t), pos);
+}
+
+void *t_ctx_get_ptr(struct cell *t, int pos)
+{
+	return __context_get_ptr(CONTEXT_TRAN, context_of(t), pos);
+}

modules/tm/t_ctx.h

@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2014 OpenSIPS Solutions
+ *
+ * This file is part of opensips, a free SIP server.
+ *
+ * opensips 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
+ *
+ * opensips 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * History:
+ * --------
+ *  2014-10-30 initial version (liviu)
+ */
+
+#ifndef __T_CTX_H
+#define __T_CTX_H
+
+typedef int (*t_ctx_register_int_f)(void);
+typedef int (*t_ctx_register_str_f)(void);
+typedef int (*t_ctx_register_ptr_f)(void);
+typedef void (*t_ctx_put_int_f)(struct cell *t, int pos, int data);
+typedef void (*t_ctx_put_str_f)(struct cell *t, int pos, str *data);
+typedef void (*t_ctx_put_ptr_f)(struct cell *t, int pos, void *data);
+typedef int   (*t_ctx_get_int_f)(struct cell *t, int pos);
+typedef str  *(*t_ctx_get_str_f)(struct cell *t, int pos);
+typedef void *(*t_ctx_get_ptr_f)(struct cell *t, int pos);
+
+int t_ctx_register_int(void);
+int t_ctx_register_str(void);
+int t_ctx_register_ptr(void);
+
+void t_ctx_put_int(struct cell *t, int pos, int data);
+void t_ctx_put_str(struct cell *t, int pos, str *data);
+void t_ctx_put_ptr(struct cell *t, int pos, void *data);
+
+int   t_ctx_get_int(struct cell *t, int pos);
+str  *t_ctx_get_str(struct cell *t, int pos);
+void *t_ctx_get_ptr(struct cell *t, int pos);
+
+#endif /* __T_CTX_H */

modules/tm/tm.c

@@ -77,6 +77,7 @@
 #include "t_fifo.h"
 #include "mi.h"
 #include "tm_load.h"
+#include "t_ctx.h"
 
 
 /* item functions */
@@ -653,6 +654,19 @@ int load_tm( struct tm_binds *tmb)
 	tmb->setlocalTholder = setlocalTholder;
 	tmb->get_branch_index = get_branch_index;
 
+	/* tm context functions */
+	tmb->t_ctx_register_int = t_ctx_register_int;
+	tmb->t_ctx_register_str = t_ctx_register_str;
+	tmb->t_ctx_register_ptr = t_ctx_register_ptr;
+
+	tmb->t_ctx_put_int = t_ctx_put_int;
+	tmb->t_ctx_put_str = t_ctx_put_str;
+	tmb->t_ctx_put_ptr = t_ctx_put_ptr;
+
+	tmb->t_ctx_get_int = t_ctx_get_int;
+	tmb->t_ctx_get_str = t_ctx_get_str;
+	tmb->t_ctx_get_ptr = t_ctx_get_ptr;
+
 	return 1;
 }
 

modules/tm/tm_load.h

@@ -44,6 +44,7 @@
 #include "t_cancel.h"
 #include "dlg.h"
 #include "h_table.h"
+#include "t_ctx.h"
 
 
 struct tm_binds {
@@ -79,6 +80,18 @@ struct tm_binds {
 	setkr_f            t_setkr;
 	set_localT_holder_f setlocalTholder;
 	tgetbranch_f       get_branch_index;
+
+	t_ctx_register_int_f t_ctx_register_int;
+	t_ctx_register_str_f t_ctx_register_str;
+	t_ctx_register_ptr_f t_ctx_register_ptr;
+
+	t_ctx_put_int_f t_ctx_put_int;
+	t_ctx_put_str_f t_ctx_put_str;
+	t_ctx_put_ptr_f t_ctx_put_ptr;
+
+	t_ctx_get_int_f t_ctx_get_int;
+	t_ctx_get_str_f t_ctx_get_str;
+	t_ctx_get_ptr_f t_ctx_get_ptr;
 };