From 8a22a7a76be8d9b439ee73383edbdf9d554bf3eb Mon Sep 17 00:00:00 2001 From: Robin Watts Date: Tue, 18 Jun 2013 20:14:40 +0100 Subject: Exception handling changes In preparation for work on progressive loading, update the exception handling scheme slightly. Until now, exceptions (as thrown with fz_throw, and caught with fz_try/fz_catch) have merely had an informative string. They have never had anything that can be compared to see if an error is of a particular type. We now introduce error codes; when we fz_throw, we now always give an error code, and can optionally (using fz_throw_message) give both an error code and an informative string. When we fz_rethrow from within a fz_catch, both the error code and the error message is maintained. Using fz_rethrow_message we can 'improve' the error message, but the code is maintained. The error message can be read out using fz_caught_message() and the error code can be read as fz_caught(). Currently we only define a 'generic' error. This will expand in future versions to include other error types that may be tested for. --- fitz/base_hash.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'fitz/base_hash.c') diff --git a/fitz/base_hash.c b/fitz/base_hash.c index e6ed019b..624cc305 100644 --- a/fitz/base_hash.c +++ b/fitz/base_hash.c @@ -177,7 +177,7 @@ fz_resize_hash(fz_context *ctx, fz_hash_table *table, int newsize) } } if (newents == NULL) - fz_throw(ctx, "hash table resize failed; out of memory (%d entries)", newsize); + fz_throw(ctx, FZ_ERROR_GENERIC, "hash table resize failed; out of memory (%d entries)", newsize); table->ents = newents; memset(table->ents, 0, sizeof(fz_hash_entry) * newsize); table->size = newsize; -- cgit v1.2.3