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Connecting bitswap and blockstore

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This commit is contained in:
John Jones 2017-07-24 14:56:30 -05:00
parent 4368e052e2
commit 9924d5dcf7
12 changed files with 192 additions and 33 deletions
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54
blocks/blockstore.c
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@ -4,16 +4,54 @@
#include "libp2p/crypto/encoding/base32.h"
#include "ipfs/cid/cid.h"
#include "ipfs/blocks/block.h"
#include "ipfs/blocks/blockstore.h"
#include "ipfs/datastore/ds_helper.h"
#include "ipfs/repo/fsrepo/fs_repo.h"
#include "libp2p/os/utils.h"
/***
* Create a new Blockstore struct
* @param fs_repo the FSRepo to use
* @returns the new Blockstore struct, or NULL if there was a problem.
*/
struct Blockstore* ipfs_blockstore_new(const struct FSRepo* fs_repo) {
struct Blockstore* blockstore = (struct Blockstore*) malloc(sizeof(struct Blockstore));
if(blockstore != NULL) {
blockstore->blockstoreContext = (struct BlockstoreContext*) malloc(sizeof(struct BlockstoreContext));
if (blockstore->blockstoreContext == NULL) {
free(blockstore);
return NULL;
}
blockstore->blockstoreContext->fs_repo = fs_repo;
blockstore->Delete = ipfs_blockstore_delete;
blockstore->Get = ipfs_blockstore_get;
blockstore->Has = ipfs_blockstore_has;
blockstore->Put = ipfs_blockstore_put;
}
return blockstore;
}
/**
* Release resources of a Blockstore struct
* @param blockstore the struct to free
* @returns true(1)
*/
int ipfs_blockstore_free(struct Blockstore* blockstore) {
if (blockstore != NULL) {
if (blockstore->blockstoreContext != NULL)
free(blockstore->blockstoreContext);
free(blockstore);
}
return 1;
}
/**
* Delete a block based on its Cid
* @param cid the Cid to look for
* @param returns true(1) on success
*/
int ipfs_blockstore_delete(struct Cid* cid, struct FSRepo* fs_repo) {
int ipfs_blockstore_delete(const struct BlockstoreContext* context, struct Cid* cid) {
return 0;
}
@ -22,7 +60,7 @@ int ipfs_blockstore_delete(struct Cid* cid, struct FSRepo* fs_repo) {
* @param cid the Cid to look for
* @returns true(1) if found
*/
int ipfs_blockstore_has(struct Cid* cid, struct FSRepo* fs_repo) {
int ipfs_blockstore_has(const struct BlockstoreContext* context, struct Cid* cid) {
return 0;
}
@ -74,11 +112,11 @@ char* ipfs_blockstore_path_get(const struct FSRepo* fs_repo, const char* filenam
* @param block where to put the data to be returned
* @returns true(1) on success
*/
int ipfs_blockstore_get(const unsigned char* hash, size_t hash_size, struct Block** block, const struct FSRepo* fs_repo) {
int ipfs_blockstore_get(const struct BlockstoreContext* context, struct Cid* cid, struct Block** block) {
// get datastore key, which is a base32 key of the multihash
unsigned char* key = ipfs_blockstore_hash_to_base32(hash, hash_size);
unsigned char* key = ipfs_blockstore_hash_to_base32(cid->hash, cid->hash_length);
char* filename = ipfs_blockstore_path_get(fs_repo, (char*)key);
char* filename = ipfs_blockstore_path_get(context->fs_repo, (char*)key);
size_t file_size = os_utils_file_size(filename);
unsigned char buffer[file_size];
@ -89,6 +127,8 @@ int ipfs_blockstore_get(const unsigned char* hash, size_t hash_size, struct Bloc
int retVal = ipfs_blocks_block_protobuf_decode(buffer, bytes_read, block);
(*block)->cid = cid;
free(key);
free(filename);
@ -100,7 +140,7 @@ int ipfs_blockstore_get(const unsigned char* hash, size_t hash_size, struct Bloc
* @param block the block to store
* @returns true(1) on success
*/
int ipfs_blockstore_put(struct Block* block, struct FSRepo* fs_repo) {
int ipfs_blockstore_put(const struct BlockstoreContext* context, struct Block* block) {
// from blockstore.go line 118
int retVal = 0;
@ -123,7 +163,7 @@ int ipfs_blockstore_put(struct Block* block, struct FSRepo* fs_repo) {
}
// now write byte array to file
char* filename = ipfs_blockstore_path_get(fs_repo, (char*)key);
char* filename = ipfs_blockstore_path_get(context->fs_repo, (char*)key);
if (filename == NULL) {
free(key);
return 0;