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lightningd: tell connectd about the custom messages.

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We re-send whenever a plugin which allows them starts/finishes.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
2023-10-23 21:59:51 +10:30
parent 774719530e
commit ad7dcf381e
7 changed files with 88 additions and 11 deletions
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33
lightningd/plugin.c
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@@ -16,6 +16,7 @@
#include <common/memleak.h>
#include <common/timeout.h>
#include <common/version.h>
#include <connectd/connectd_wiregen.h>
#include <dirent.h>
#include <errno.h>
#include <lightningd/io_loop_with_timers.h>
@@ -23,6 +24,7 @@
#include <lightningd/plugin.h>
#include <lightningd/plugin_control.h>
#include <lightningd/plugin_hook.h>
#include <lightningd/subd.h>
#include <sys/stat.h>
/* Only this file can include this generated header! */
@@ -192,6 +194,32 @@ struct command_result *plugin_register_all_complete(struct lightningd *ld,
return NULL;
}
static void tell_connectd_custommsgs(struct plugins *plugins)
{
struct plugin *p;
size_t n = 0;
u16 *all_msgs = tal_arr(tmpctx, u16, n);
/* Not when shutting down */
if (!plugins->ld->connectd)
return;
/* Gather from all plugins. */
list_for_each(&plugins->plugins, p, list) {
size_t num = tal_count(p->custom_msgs);
/* Blah blah blah memcpy NULL blah blah */
if (num == 0)
continue;
tal_resize(&all_msgs, n + num);
memcpy(all_msgs + n, p->custom_msgs, num * sizeof(*p->custom_msgs));
n += num;
}
/* Don't bother sorting or uniquifying. If plugins are dumb, they deserve it. */
subd_send_msg(plugins->ld->connectd,
take(towire_connectd_set_custommsgs(NULL, all_msgs)));
}
static void destroy_plugin(struct plugin *p)
{
struct plugin_rpccall *call;
@@ -232,6 +260,9 @@ static void destroy_plugin(struct plugin *p)
"shutting down lightningd!");
lightningd_exit(p->plugins->ld, 1);
}
if (tal_count(p->custom_msgs))
tell_connectd_custommsgs(p->plugins);
}
static u32 file_checksum(struct lightningd *ld, const char *path)
@@ -1950,6 +1981,8 @@ static void plugin_config_cb(const char *buffer,
plugin_cmd_succeeded(plugin->start_cmd, plugin);
plugin->start_cmd = NULL;
}
if (tal_count(plugin->custom_msgs))
tell_connectd_custommsgs(plugin->plugins);
check_plugins_initted(plugin->plugins);
}