47 lines
953 B
C
47 lines
953 B
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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#define _GNU_SOURCE
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#include "instr_ovni.h"
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static void
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emit(uint8_t *buf, size_t size)
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{
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struct ovni_ev ev = {0};
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ovni_ev_set_mcv(&ev, "OB.");
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ovni_ev_set_clock(&ev, ovni_clock_now());
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ovni_ev_jumbo_emit(&ev, buf, size);
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}
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int
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main(void)
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{
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instr_start(0, 1);
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size_t payload_size = (size_t) (0.9 * (double) OVNI_MAX_EV_BUF);
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uint8_t *payload_buf = calloc(1, payload_size);
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if (!payload_buf) {
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perror("calloc failed");
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exit(EXIT_FAILURE);
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}
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/* The first should fit, filling 90 % of the buffer */
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emit(payload_buf, payload_size);
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/* The second event would cause a flush */
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emit(payload_buf, payload_size);
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/* The third would cause the previous flush events to be written
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* to disk */
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emit(payload_buf, payload_size);
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/* Flush the last event to disk manually */
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instr_end();
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free(payload_buf);
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return 0;
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}
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