From: Jeff Hostetler <jeffhost@xxxxxxxxxxxxx>
Use simple IPC to directly communicate with the new builtin file
system monitor daemon when `core.fsmonitor` is set to true.
Signed-off-by: Johannes Schindelin <johannes.schindelin@xxxxxx>
Signed-off-by: Jeff Hostetler <jeffhost@xxxxxxxxxxxxx>
Signed-off-by: Junio C Hamano <gitster@xxxxxxxxx>
---
fsmonitor.c | 38 ++++++++++++++++++++++++++++++++++++--
1 file changed, 36 insertions(+), 2 deletions(-)
diff --git a/fsmonitor.c b/fsmonitor.c
index 0e961b74d82..a38b5710eb3 100644
--- a/fsmonitor.c
+++ b/fsmonitor.c
@@ -241,8 +241,41 @@ void refresh_fsmonitor(struct index_state *istate)
trace_printf_key(&trace_fsmonitor, "refresh fsmonitor");
if (fsm_mode == FSMONITOR_MODE_IPC) {
- /* TODO */
- return;
+ query_success = !fsmonitor_ipc__send_query(
+ istate->fsmonitor_last_update ?
+ istate->fsmonitor_last_update : "builtin:fake",
+ &query_result);
+ if (query_success) {
+ /*
+ * The response contains a series of nul terminated
+ * strings. The first is the new token.
+ *
+ * Use `char *buf` as an interlude to trick the CI
+ * static analysis to let us use `strbuf_addstr()`
+ * here (and only copy the token) rather than
+ * `strbuf_addbuf()`.
+ */
+ buf = query_result.buf;
+ strbuf_addstr(&last_update_token, buf);
+ bol = last_update_token.len + 1;
+ is_trivial = query_result.buf[bol] == '/';
+ if (is_trivial)
+ trace2_data_intmax("fsm_client", NULL,
+ "query/trivial-response", 1);
+ } else {
+ /*
+ * The builtin daemon is not available on this
+ * platform -OR- we failed to get a response.
+ *
+ * Generate a fake token (rather than a V1
+ * timestamp) for the index extension. (If
+ * they switch back to the hook API, we don't
+ * want ambiguous state.)
+ */
+ strbuf_addstr(&last_update_token, "builtin:fake");
+ }
+
+ goto apply_results;
}
assert(fsm_mode == FSMONITOR_MODE_HOOK);
@@ -315,6 +348,7 @@ void refresh_fsmonitor(struct index_state *istate)
query_success ? "success" : "failure");
}
+apply_results:
/*
* The response from FSMonitor (excluding the header token) is
* either:
--
gitgitgadget
