1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
33  *  cc mevent_test.c mevent.c -lpthread
67 	uint64_t min, max, diff, sum, tsc_freq;  in timer_print()  local
68 	size_t len;  in timer_print()  local
71 	min = UINT64_MAX;  in timer_print()
75 	len = sizeof(tsc_freq);  in timer_print()
76 	sysctlbyname("machdep.tsc_freq", &tsc_freq, &len, NULL, 0);  in timer_print()
80 		diff = (tevbuf[j] - tevbuf[j-1]) * 1000000 / tsc_freq;  in timer_print()
82 		if (min > diff)  in timer_print()
83 			min = diff;  in timer_print()
88 	printf("timers done: usecs, min %ld, max %ld, mean %ld\n", min, max,  in timer_print()
89 	    sum/(TEVSZ - 1));  in timer_print()
120 	pthread_mutex_lock(&sync->e_mt);  in echoer_callback()
121 	pthread_cond_signal(&sync->e_cond);  in echoer_callback()
122 	pthread_mutex_unlock(&sync->e_mt);  in echoer_callback()
132 	int len;  in echoer()  local
146 		len = read(fd, buf, sizeof(buf));  in echoer()
147 		if (len > 0) {  in echoer()
148 			write(fd, buf, len);  in echoer()
149 			write(0, buf, len);  in echoer()
171 	int len;  in echoer()  local
173 	while ((len = read(fd, buf, sizeof(buf))) > 0) {  in echoer()
174 		write(1, buf, len);  in echoer()