Rodrigo Arias
354f2f50eb
Until now, emulation models were always being registered via probe(), which causes the emulator to initialize all the channels. To reduce the overhead, the channels were not connected or registered in the bay until the first event of that model was received. This delayed connect was causing issues in muxes where the newly connected model required refreshing the touched channels. Which in turn was causing unexpected PRV events. By determining which models we need to enable, we can remove the delayed connect mechanism and just enable those models at initialization time, and connect the channels.
74 lines
1.2 KiB
C
74 lines
1.2 KiB
C
/* Copyright (c) 2021-2023 Barcelona Supercomputing Center (BSC)
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* SPDX-License-Identifier: GPL-3.0-or-later */
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include "common.h"
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#include "compat.h"
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#include "ovni.h"
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#include "instr.h"
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static inline void
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init(void)
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{
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char hostname[OVNI_MAX_HOSTNAME];
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if (gethostname(hostname, OVNI_MAX_HOSTNAME) != 0) {
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perror("gethostname failed");
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exit(EXIT_FAILURE);
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}
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ovni_proc_init(0, hostname, getpid());
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ovni_thread_init(get_tid());
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ovni_add_cpu(0, 0);
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}
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static void
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emit(char *mcv, int64_t clock)
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{
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struct ovni_ev ev = {0};
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ovni_ev_set_mcv(&ev, mcv);
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ovni_ev_set_clock(&ev, clock);
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ovni_ev_emit(&ev);
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}
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int
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main(void)
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{
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init();
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int64_t t0 = ovni_clock_now();
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/* Leave some room to prevent clashes */
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sleep_us(100000); /* 100000000 ns */
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int64_t t1 = ovni_clock_now();
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emit("OU[", t1);
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/* Fill the ring buffer */
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long n = 1000000 + 10;
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err("using n=%ld events", n);
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/* Go back 100 ns for each event (with some space) */
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int64_t delta = 10000;
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int64_t t = t0 + delta;
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for (long i = 0; i < n; i++) {
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if (t <= t0 || t >= t1)
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die("bad time");
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emit("OB.", t);
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t += 33;
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}
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emit("OU]", ovni_clock_now());
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ovni_flush();
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ovni_proc_fini();
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return 0;
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}
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