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authorDavid M. Lee <dlee@digium.com>2013-01-07 14:24:28 -0600
committerDavid M. Lee <dlee@digium.com>2013-01-07 14:24:28 -0600
commitf3ab456a17af1c89a6e3be4d20c5944853df1cb0 (patch)
treed00e1a332cd038a6d906a1ea0ac91e1a4458e617 /pjlib/src/pjlib-samples/except.c
Import pjproject-2.0.1
Diffstat (limited to 'pjlib/src/pjlib-samples/except.c')
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diff --git a/pjlib/src/pjlib-samples/except.c b/pjlib/src/pjlib-samples/except.c
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+++ b/pjlib/src/pjlib-samples/except.c
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+/* $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();
+}
+