int main(int argc, char **argv) { struct iperf_test *test; // XXX: Setting the process affinity requires root on most systems. // Is this a feature we really need? #ifdef TEST_PROC_AFFINITY /* didnt seem to work.... */ /* * increasing the priority of the process to minimise packet generation * delay */ int rc = setpriority(PRIO_PROCESS, 0, -15); if (rc < 0) { perror("setpriority:"); fprintf(stderr, "setting priority to valid level\n"); rc = setpriority(PRIO_PROCESS, 0, 0); } /* setting the affinity of the process */ cpu_set_t cpu_set; int affinity = -1; int ncores = 1; sched_getaffinity(0, sizeof(cpu_set_t), &cpu_set); if (errno) perror("couldn't get affinity:"); if ((ncores = sysconf(_SC_NPROCESSORS_CONF)) <= 0) err("sysconf: couldn't get _SC_NPROCESSORS_CONF"); CPU_ZERO(&cpu_set); CPU_SET(affinity, &cpu_set); if (sched_setaffinity(0, sizeof(cpu_set_t), &cpu_set) != 0) err("couldn't change CPU affinity"); #endif test = iperf_new_test(); if (!test) iperf_errexit(NULL, "create new test error - %s", iperf_strerror(i_errno)); iperf_defaults(test); /* sets defaults */ if (iperf_parse_arguments(test, argc, argv) < 0) { iperf_err(test, "parameter error - %s", iperf_strerror(i_errno)); fprintf(stderr, "\n"); usage_long(); exit(1); } if (run(test) < 0) iperf_errexit(test, "error - %s", iperf_strerror(i_errno)); iperf_free_test(test); return 0; }
static int run(struct iperf_test *test) { int consecutive_errors; /* Termination signals. */ iperf_catch_sigend(sigend_handler); if (setjmp(sigend_jmp_buf)) iperf_got_sigend(test); switch (test->role) { case 's': if (test->daemon) { int rc = daemon(0, 0); if (rc < 0) { i_errno = IEDAEMON; iperf_errexit(test, "error - %s", iperf_strerror(i_errno)); } } consecutive_errors = 0; if (iperf_create_pidfile(test) < 0) { i_errno = IEPIDFILE; iperf_errexit(test, "error - %s", iperf_strerror(i_errno)); } for (;;) { if (iperf_run_server(test) < 0) { iperf_err(test, "error - %s", iperf_strerror(i_errno)); ++consecutive_errors; if (consecutive_errors >= 5) { iperf_errexit(test, "too many errors, exiting"); break; } } else consecutive_errors = 0; iperf_reset_test(test); if (iperf_get_test_one_off(test)) break; } iperf_delete_pidfile(test); break; case 'c': if (iperf_run_client(test) < 0) iperf_errexit(test, "error - %s", iperf_strerror(i_errno)); break; default: usage(); break; } iperf_catch_sigend(SIG_DFL); return 0; }
static int run(struct iperf_test *test) { int consecutive_errors; switch (test->role) { case 's': if (test->daemon) { int rc = daemon(0, 0); if (rc < 0) { i_errno = IEDAEMON; iperf_errexit(test, "error - %s", iperf_strerror(i_errno)); } } consecutive_errors = 0; if (iperf_create_pidfile(test) < 0) { i_errno = IEPIDFILE; iperf_errexit(test, "error - %s", iperf_strerror(i_errno)); } for (;;) { if (iperf_run_server(test) < 0) { iperf_err(test, "error - %s", iperf_strerror(i_errno)); fprintf(stderr, "\n"); ++consecutive_errors; if (consecutive_errors >= 5) { fprintf(stderr, "too many errors, exiting\n"); break; } } else consecutive_errors = 0; iperf_reset_test(test); if (iperf_get_test_one_off(test)) break; } iperf_delete_pidfile(test); break; case 'c': if (iperf_run_client(test) < 0) iperf_errexit(test, "error - %s", iperf_strerror(i_errno)); break; default: usage(); break; } return 0; }
int main( int argc, char** argv ) { char* argv0; int port; struct iperf_test *test; int consecutive_errors; argv0 = strrchr( argv[0], '/' ); if ( argv0 != (char*) 0 ) ++argv0; else argv0 = argv[0]; if ( argc != 2 ) { fprintf( stderr, "usage: %s [port]\n", argv0 ); exit( EXIT_FAILURE ); } port = atoi( argv[1] ); test = iperf_new_test(); if ( test == NULL ) { fprintf( stderr, "%s: failed to create test\n", argv0 ); exit( EXIT_FAILURE ); } iperf_defaults( test ); iperf_set_verbose( test, 1 ); iperf_set_test_role( test, 's' ); iperf_set_test_server_port( test, port ); consecutive_errors = 0; for (;;) { if ( iperf_run_server( test ) < 0 ) { fprintf( stderr, "%s: error - %s\n\n", argv0, iperf_strerror( i_errno ) ); ++consecutive_errors; if (consecutive_errors >= 5) { fprintf(stderr, "%s: too many errors, exitting\n", argv0); break; } } else consecutive_errors = 0; iperf_reset_test( test ); } iperf_free_test( test ); exit( EXIT_SUCCESS ); }
void iperf_error(char *estr) { LOGI("%s: %s\n", estr, iperf_strerror(i_errno)); }