diff options
Diffstat (limited to 'src/server/server.h')
| -rw-r--r-- | src/server/server.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/src/server/server.h b/src/server/server.h index 90aae5c..832777e 100644 --- a/src/server/server.h +++ b/src/server/server.h @@ -28,6 +28,15 @@ #include "../config.h" #include "../types.h" +// one byte in the map covers 8 4kib blocks, so 32kib per byte +// "+ (1 << 15) - 1" is required to account for the last bit of +// the image that is smaller than 32kib +// this would be the case whenever the image file size is not a +// multiple of 32kib (= the number of blocks is not divisible by 8) +// ie: if the image is 49152 bytes and you do 49152 >> 15 you get 1, +// but you actually need 2 bytes to have a complete cache map +#define IMGSIZE_TO_MAPBYTES(bytes) ((int)(((bytes) + (1 << 15) - 1) >> 15)) + typedef struct { char *config_group; // exact name of group in config file that represents this image @@ -42,13 +51,15 @@ typedef struct char working; // whether this image is considered working. local images are "working" if the local file exists, proxied images have to have at least one working upstream server or a complete local cache file time_t delete_soft; // unixtime telling when this image should be deleted. if there are still clients using this image it weill be kept, but new clients requesting the image will be rejected. 0 = never time_t delete_hard; // unixtime telling when this image should be deleted, no matter if there are still clients connected. 0 = never + uint8_t relayed; // TRUE if relayed from other server (needs dnbd3 client module loaded) } dnbd3_image_t; typedef struct { int sock; uint8_t ipaddr[16]; - uint8_t addrtype; // ip version (AF_INET or AF_INET6) + uint8_t addrtype; // ip version (AF_INET or AF_INET6) + uint8_t is_server; // TRUE if a server in proxy mode, FALSE if real client pthread_t thread; dnbd3_image_t *image; } dnbd3_client_t; |