62 lines
1.7 KiB
Diff
62 lines
1.7 KiB
Diff
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commit 2ca397bfcca94c106380368b5b0ce920b0a62a95
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Author: Ludovic Courtès <ludo@gnu.org>
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Date: Sat Jan 6 16:22:45 2024 +0100
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libevent: Fix computation of the timeout value.
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diff --git a/extensions/libevent.c b/extensions/libevent.c
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index 134460a..62e50a3 100644
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--- a/extensions/libevent.c
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+++ b/extensions/libevent.c
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@@ -192,30 +192,27 @@ scm_primitive_resize (SCM lst, SCM eventsv)
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}
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#undef FUNC_NAME
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-static uint64_t time_units_per_microsec;
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+static uint64_t time_units_per_microsec, microsec_per_time_units;
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static void*
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run_event_loop (void *p)
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#define FUNC_NAME "primitive-event-loop"
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{
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- int ret = 0;
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- int microsec = 0;
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- struct timeval tv;
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-
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+ int ret;
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struct loop_data *data = p;
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- if (data->timeout < 0)
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- microsec = -1;
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- else if (data->timeout >= 0)
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+ if (data->timeout >= 0)
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{
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- microsec = (time_units_per_microsec == 0)
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- ? 0 : data->timeout / time_units_per_microsec;
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- tv.tv_sec = 0;
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- tv.tv_usec = microsec;
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- }
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+ struct timeval tv;
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+
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+ tv.tv_sec = data->timeout / scm_c_time_units_per_second;
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+ tv.tv_usec =
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+ time_units_per_microsec > 0
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+ ? ((data->timeout % scm_c_time_units_per_second)
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+ / time_units_per_microsec)
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+ : ((data->timeout % scm_c_time_units_per_second)
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+ * microsec_per_time_units);
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- if (microsec >= 0)
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- {
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ret = event_base_loopexit (data->base, &tv);
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if (ret == -1)
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SCM_MISC_ERROR ("event loop exit failed", SCM_EOL);
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@@ -307,6 +304,7 @@ void
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init_fibers_libevt (void)
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{
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time_units_per_microsec = scm_c_time_units_per_second / 1000000;
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+ microsec_per_time_units = 1000000 / scm_c_time_units_per_second;
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scm_c_define_gsubr ("primitive-event-wake", 1, 0, 0,
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scm_primitive_event_wake);
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