ref: a2236768b3430b83754d178eca0646b11edc2fe8
dir: /tests/callback_hang_test.c/
/* ** Copyright (C) 2002-2008 Erik de Castro Lopo <erikd@mega-nerd.com> ** ** This program is free software; you can redistribute it and/or modify ** it under the terms of the GNU General Public License as published by ** the Free Software Foundation; either version 2 of the License, or ** (at your option) any later version. ** ** This program is distributed in the hope that it will be useful, ** but WITHOUT ANY WARRANTY; without even the implied warranty of ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ** GNU General Public License for more details. ** ** You should have received a copy of the GNU General Public License ** along with this program; if not, write to the Free Software ** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. */ #include "config.h" #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <math.h> #if HAVE_ALARM && HAVE_SIGNAL && HAVE_SIGALRM #include <signal.h> #include <samplerate.h> #include "util.h" #define SHORT_BUFFER_LEN 512 #define LONG_BUFFER_LEN (1 << 14) typedef struct { double ratio ; int count ; } SRC_PAIR ; static void callback_hang_test (int converter) ; static void alarm_handler (int number) ; static long input_callback (void *cb_data, float **data) ; int main (void) { /* Set up SIGALRM handler. */ signal (SIGALRM, alarm_handler) ; puts ("") ; callback_hang_test (SRC_ZERO_ORDER_HOLD) ; callback_hang_test (SRC_LINEAR) ; callback_hang_test (SRC_SINC_FASTEST) ; puts ("") ; return 0 ; } /* main */ static void callback_hang_test (int converter) { static float output [LONG_BUFFER_LEN] ; static SRC_PAIR pairs [] = { { 1.2, 5 }, { 1.1, 1 }, { 1.0, 1 }, { 3.0, 1 }, { 2.0, 1 }, { 0.3, 1 }, { 1.2, 0 }, { 1.1, 10 }, { 1.0, 1 } } ; SRC_STATE *src_state ; double src_ratio = 1.0 ; long out_count ; int current_out ; int k, error ; printf ("\tcallback_hang_test (%-28s) ....... ", src_get_name (converter)) ; fflush (stdout) ; current_out = 0 ; /* Perform sample rate conversion. */ src_state = src_callback_new (input_callback, converter, 1, &error, NULL) ; if (src_state == NULL) { printf ("\n\nLine %d : src_callback_new () failed : %s\n\n", __LINE__, src_strerror (error)) ; exit (1) ; } ; for (k = 0 ; k < ARRAY_LEN (pairs) ; k++) { alarm (1) ; src_ratio = pairs [k].ratio ; out_count = src_callback_read (src_state, src_ratio, pairs [k].count, output) ; } ; src_state = src_delete (src_state) ; alarm (0) ; puts ("ok") ; return ; } /* callback_hang_test */ static void alarm_handler (int number) { number = 0 ; printf ("\n\n Error : Hang inside src_callback_read() detected. Exiting!\n\n") ; exit (1) ; } /* alarm_handler */ static long input_callback (void *cb_data, float **data) { static float buffer [20] ; cb_data = NULL ; *data = buffer ; return ARRAY_LEN (buffer) ; } /* input_callback */ #else int main (void) { puts ("\tCan't run this test on this platform.") ; return 0 ; } /* main */ #endif