renepay: an experimental payment plugin

Signed-off-by: Lagrang3 <eduardo.quintana@pm.me>
Changelog-Added: Plugins: `renepay`: an experimental pay plugin implementing Pickhardt payments (`renepay` and `renepaystatus`).

plugins/renepay/debug.h

@@ -0,0 +1,54 @@
+#ifndef LIGHTNING_PLUGINS_RENEPAY_DEBUG_H
+#define LIGHTNING_PLUGINS_RENEPAY_DEBUG_H
+#include "config.h"
+#include <ccan/json_out/json_out.h>
+#include <common/json_param.h>
+#include <common/json_stream.h>
+#include <common/type_to_string.h>
+#include <plugins/libplugin.h>
+#include <plugins/renepay/pay.h>
+#include <stdio.h>
+#include <wire/peer_wire.h>
+
+void _debug_outreq(const char *fname, const struct out_req *req);
+void _debug_reply(const char* fname, const char* buf,const jsmntok_t *toks);
+void _debug_info(const char* fname, const char *fmt, ...);
+void _debug_call(const char* fname, const char* fun);
+void _debug_exec_branch(const char* fname,const char* fun, int lineno);
+
+#ifndef MYLOG
+#define MYLOG "/tmp/debug.txt"
+#endif
+
+
+/* All debug information goes to a file. */
+#ifdef RENEPAY_UNITTEST
+
+#define debug_info(...) \
+	_debug_info(MYLOG,__VA_ARGS__)
+
+#define debug_err(...) \
+	{_debug_info(MYLOG,__VA_ARGS__); abort();}
+
+#define debug_paynote(p,...) \
+	{payment_note(p,__VA_ARGS__);_debug_info(MYLOG,__VA_ARGS__);}
+
+#else
+/* Debugging information goes either to payment notes or to lightningd log. */
+
+#define debug_info(...) \
+	plugin_log(pay_plugin->plugin,LOG_DBG,__VA_ARGS__)
+
+#define debug_err(...) \
+	plugin_err(pay_plugin->plugin,__VA_ARGS__)
+
+#define debug_paynote(p,...) \
+	payment_note(p,__VA_ARGS__);
+
+#endif
+
+#define debug_assert(expr) \
+	if(!(expr)) debug_err("Assertion failed %s, file: %s, line %d", #expr,__FILE__,__LINE__)
+
+
+#endif /* LIGHTNING_PLUGINS_RENEPAY_DEBUG_H */