GSOC 18: Implementing blackholing in Gatekeeper #1
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lib: Implementing Space saving algorithm in Gatekeeper
include/space_saving.h
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| #include "gatekeeper_net.h" | ||
| #include "gatekeeper_flow.h" | ||
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| /* Data structure for Counter Table */ |
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Please add a period at the end of each comment.
include/space_saving.h
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| /* Data structure for Counter bucket */ | ||
| struct counter_bucket { | ||
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| int proto; |
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Isn't it enough to use only 16-bit number for this field?
include/space_saving.h
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| /* Data present in a Counter bucket */ | ||
| struct bucket_data { | ||
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I would like to remove this blank line.
include/space_saving.h
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| static int | ||
| setup_bucket_params(unsigned int socket_id, int bkt_id, int bkt_size, | ||
| int ip_ver, struct rte_hash_parameters *bkt_hash_params); |
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Please keep one tab space for the alignment.
include/space_saving.h
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| static int | ||
| create_bucket(struct gatekeeper_if *iface, struct gk_config *gk_conf, | ||
| int bkt_id); |
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Please keep one tab space for the alignment.
lib/space_saving.c
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| return ret; | ||
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| out: | ||
| ret = -1; |
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I think you can return ret directly.
lib/space_saving.c
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| if(ret < 0) | ||
| goto out; | ||
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| //avl_update(bkt_id, 1); |
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Please remove this line if it's unused.
lib/space_saving.c
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| /* | ||
| static int | ||
| iterate_counter_table(struct counter_bkt *ct_bkt, int proto, int threshold, |
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If the code is not used, please remove it.
lib/space_saving.c
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| */ | ||
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| /* Bucket id of element with minimum frequency */ | ||
| int min_bkt_id; |
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Must it be a global variable? Also, please move it to the beginning of the file if it's necessary.
| struct ip_data *data = (struct ip_data *) | ||
| malloc(sizeof(struct ip_data)); | ||
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| uint32_t next = 0; |
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Please move it to the beginning of the function. Same applies to the variables below.
gogapp
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I have added the code files for the final review and fixed the styling errors. For testing of the algorithms, I have created a different repository here. https://github.com/gogapp/GSOC-2018-tests |
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This patch implements the space saving algorithm in Gatekeeper