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author | Simon Rettberg | 2019-09-06 17:32:58 +0200 |
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committer | Simon Rettberg | 2019-09-06 17:32:58 +0200 |
commit | 701e5a967fd6bc97644f39e6fea3714f49a90291 (patch) | |
tree | 254e8bc23dfb9e6640b6f1c8d7c57ffff975b998 /src/server/image.c | |
parent | [SERVER] Introduce autoFreeDiskSpaceDelay (diff) | |
download | dnbd3-701e5a967fd6bc97644f39e6fea3714f49a90291.tar.gz dnbd3-701e5a967fd6bc97644f39e6fea3714f49a90291.tar.xz dnbd3-701e5a967fd6bc97644f39e6fea3714f49a90291.zip |
[SERVER] rpc: Add cachemap feature
Diffstat (limited to 'src/server/image.c')
-rw-r--r-- | src/server/image.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/server/image.c b/src/server/image.c index 9fcb866..5fa06d8 100644 --- a/src/server/image.c +++ b/src/server/image.c @@ -274,6 +274,22 @@ bool image_ensureOpen(dnbd3_image_t *image) return image->readFd != -1; } +dnbd3_image_t* image_byId(int imgId) +{ + int i; + mutex_lock( &imageListLock ); + for (i = 0; i < _num_images; ++i) { + dnbd3_image_t * const image = _images[i]; + if ( image != NULL && image->id == imgId ) { + image->users++; + mutex_unlock( &imageListLock ); + return image; + } + } + mutex_unlock( &imageListLock ); + return NULL; +} + /** * Get an image by name+rid. This function increases a reference counter, * so you HAVE TO CALL image_release for every image_get() call at some |