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Diffstat (limited to 'pjlib/src/pjlib-samples/except.c')
-rw-r--r-- | pjlib/src/pjlib-samples/except.c | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/pjlib/src/pjlib-samples/except.c b/pjlib/src/pjlib-samples/except.c new file mode 100644 index 0000000..2e7aa33 --- /dev/null +++ b/pjlib/src/pjlib-samples/except.c @@ -0,0 +1,82 @@ +/* $Id: except.c 3553 2011-05-05 06:14:19Z nanang $ */ +/* + * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com) + * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org> + * + * 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 <pj/except.h> +#include <pj/rand.h> +#include <stdio.h> +#include <stdlib.h> + +/** + * \page page_pjlib_samples_except_c Example: Exception Handling + * + * Below is sample program to demonstrate how to use exception handling. + * + * \includelineno pjlib-samples/except.c + */ + +static pj_exception_id_t NO_MEMORY, OTHER_EXCEPTION; + +static void randomly_throw_exception() +{ + if (pj_rand() % 2) + PJ_THROW(OTHER_EXCEPTION); +} + +static void *my_malloc(size_t size) +{ + void *ptr = malloc(size); + if (!ptr) + PJ_THROW(NO_MEMORY); + return ptr; +} + +static int test_exception() +{ + PJ_USE_EXCEPTION; + + PJ_TRY { + void *data = my_malloc(200); + free(data); + randomly_throw_exception(); + } + PJ_CATCH_ANY { + pj_exception_id_t x_id; + + x_id = PJ_GET_EXCEPTION(); + printf("Caught exception %d (%s)\n", + x_id, pj_exception_id_name(x_id)); + } + PJ_END + return 1; +} + +int main() +{ + pj_status_t rc; + + // Error handling is omited for clarity. + + rc = pj_init(); + + rc = pj_exception_id_alloc("No Memory", &NO_MEMORY); + rc = pj_exception_id_alloc("Other Exception", &OTHER_EXCEPTION); + + return test_exception(); +} + |