Libplugin improvements #7750
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Libplugin improvements #7750
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rustyrussell
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adi2011
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Oct 30, 2024
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And fix the fallout! Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Sometimes we want to clean up *after* a command has completed, but we're moving to a model where all libplugin operations require a `struct command`. This adds `aux_command` to create an independent-lifetime command with the same id. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We didn't set this previously when it was a notification. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This is clearer than the previous "two booleans". Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This is cleaner: everything can now be associated with a command context. You're supposed to eventually dispose of it using timer_complete(). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
All `struct command` should be terminated properly. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This does not code changes, but makes the next changes easier. We short-cut the "we are a child" case and de-indent the main cases. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This means we replace p->cmd with an auxillary command after we've finished, so we have a valid command to use. It also means we weave `struct command_result` returns back through all the callers. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We were dereferencing the first character of the id, (always '"') which meant everything was id 34. Before: plugin-pay: cmd 34 partid 5 After: cmd pytest:pay#62/cln:pay#105 partid 0 Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Changelog-Fixed: `pay`: debug logging now uses correct JSON ids.
And remove command_done() which was used when there was no cmd. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
…ng/complete. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
When we used to allow cmd to be NULL, we had to hand the plugin everywhere. We no longer do. 1. Various jsonrpc_ functions no longer need the plugin arg. 2. send_outreq no longer needs a plugin arg. 3. The init function takes a command, not a plugin. 4. Remove command_deprecated_in_nocmd_ok. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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This avoids jsonrpc_request_start() double-evaluating its cmd arg. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
…helpers. Without knowing what method was called, we can't have useful general logging methods, so go through the pain of adding "const char *method" everywhere, and add: 1. ignore_and_complete - we're done when jsonrpc returned 2. log_broken_and_complete - we're done, but emit BROKEN log. 3. plugin_broken_cb - if this happens, fail the plugin. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
…command hook. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Changelog-Fixed: libplugin: plugins can now intercept `rpc_command` hook without deadlocking.
On `dev-memleak`, if someone is using rpc_command_hook, we'll call it when the hook returns. But it will see these contexts as a leak. So attach them to tmpctx (which is excluded from leak detection). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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This changes libplugin to always have (and require!) a non-NULL
struct commandcontext for operations. This is usually easy, but required some work for pay, which didn't pass the command_result codes though.Also, a driveby fix for pay debug logs (not everything is command 34!).