Message ID | 10aefe61-96b9-e395-a34a-b9e2403153c5@gyani.pro |
---|---|
State | Accepted |
Commit | 50789e356d65270698d0d8495323ebe76a46091a |
Headers | show |
On 24-05-2019 11:24 AM, Gyan wrote: > > > On 24-05-2019 02:06 AM, Hendrik Leppkes wrote: >> On Thu, May 23, 2019 at 9:55 PM Gyan <ffmpeg@gyani.pro> wrote: >>> >>> >>> On 24-05-2019 12:58 AM, Nicolas George wrote: >>>> Gyan (12019-05-24): >>>>> avpriv_io_delete will call the file protocol's delete which is >>>>> guarded >>>>> with a header check, not done here. >>>> Do you have report of a build failure caused by unlink()? >>> No. I assume that the guard in the file proto callback is germane and >>> the patch was subject to review. Do you know it isn't? >>> >>>>> Since we now have a generic wrapper function, isn't that better for >>>>> future maintenance? >>>> Not that I see. Something that makes it harder to follow the code from >>>> the call site to the actual function is not good for maintenance. >>> The point of modularizing the op here is to have a single interface - >>> why stick with a direct external call? At the time it was added, there >>> was no alternative. >>> Don't mind it either way, but this feels like a useless game of >>> ping-pong. >>> >> Just stick to unlink. If there is no reason to change it, then the >> preference is to just keep it as-is. >> We're not using the file protocol to create the file, so no reason to >> use it to delete it. Will push tonight. Gyan
On 24-05-2019 08:53 PM, Gyan wrote: > > > On 24-05-2019 11:24 AM, Gyan wrote: >> >> > Will push tonight. Pushed as 50789e356d65270698d0d8495323ebe76a46091a Gyan
diff --git a/libavformat/cache.c b/libavformat/cache.c index 66bbbf54c9..3425be9350 100644 --- a/libavformat/cache.c +++ b/libavformat/cache.c @@ -54,6 +54,7 @@ typedef struct CacheEntry { typedef struct Context { AVClass *class; int fd; + char *filename; struct AVTreeNode *root; int64_t logical_pos; int64_t cache_pos; @@ -72,6 +73,7 @@ static int cmp(const void *key, const void *node) static int cache_open(URLContext *h, const char *arg, int flags, AVDictionary **options) { + int ret; char *buffername; Context *c= h->priv_data; @@ -83,8 +85,12 @@ static int cache_open(URLContext *h, const char *arg, int flags, AVDictionary ** return c->fd; } - unlink(buffername); - av_freep(&buffername); + ret = unlink(buffername); + + if (ret >= 0) + av_freep(&buffername); + else + c->filename = buffername; return ffurl_open_whitelist(&c->inner, arg, flags, &h->interrupt_callback, options, h->protocol_whitelist, h->protocol_blacklist, h); @@ -292,11 +298,18 @@ static int enu_free(void *opaque, void *elem) static int cache_close(URLContext *h) { Context *c= h->priv_data; + int ret; av_log(h, AV_LOG_INFO, "Statistics, cache hits:%"PRId64" cache misses:%"PRId64"\n", c->cache_hit, c->cache_miss); close(c->fd); + if (c->filename) { + ret = unlink(c->filename); + if (ret < 0) + av_log(h, AV_LOG_ERROR, "Could not delete %s.\n", c->filename); + av_freep(&c->filename); + } ffurl_close(c->inner); av_tree_enumerate(c->root, NULL, NULL, enu_free); av_tree_destroy(c->root);