ios / yh_sdwebimage · Commits

…led due to is always being 0

- queryDiskCacheForKey:done: now always invokes the callback in the main thread
- removed the now redundant main thread dispatch in the image manager class

- callbacks could be released between the callback existence if check and invocation
- could be nilled out in a background thread call to done, while being prepared for invocation on the main thread
- now making sure done is always performed on the main thread
- also added some related threading fixes and optimizations

- made sure this is true even if the downloader is used on its own
- SDWebImageManager doesn't need to perform a dispatch to the main thread any longer

Even if using the downloader directly without SDWebImageManager.

- none, disk and memory
- can still be used as a bool (if true there was a cache hit)

This preserves the image quality and retains some image attributes, such as the alpha channel (for non-jpeg images).

Tests on large images indicate an up to 4x improvement with regard to the time spent in decodedImageWithImage:.

Fix documentation directive

…d in the global background queue

…in thread dispatching