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fix: handle failure for document get pageinfo

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This commit is contained in:
Qingping Hou
2012-03-04 11:39:53 +08:00
parent 8148c5fa3d
commit dbdae773c3
1 changed files with 5 additions and 2 deletions
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7
djvu.c
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@@ -197,6 +197,7 @@ static int dcGetGamma(lua_State *L) {
}
static int openPage(lua_State *L) {
ddjvu_status_t r;
DjvuDocument *doc = (DjvuDocument*) luaL_checkudata(L, 1, "djvudocument");
int pageno = luaL_checkint(L, 2);
@@ -218,8 +219,10 @@ static int openPage(lua_State *L) {
page->doc = doc;
page->num = pageno;
/* @TODO:handle failure here */
ddjvu_document_get_pageinfo(doc->doc_ref, pageno, &(page->info));
while((r=ddjvu_document_get_pageinfo(doc->doc_ref, pageno, &(page->info)))<DDJVU_JOB_OK)
handle(L, doc->context, TRUE);
if (r>=DDJVU_JOB_FAILED)
return luaL_error(L, "cannot get page #%d information", pageno);
return 1;
}