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New functions index_del_md5(), index_del() and object_unadmire().
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1 changed files with 62 additions and 0 deletions
62
data.c
62
data.c
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@ -328,6 +328,51 @@ int index_add(const char *fn, const char *id)
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}
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int index_del_md5(const char *fn, const char *md5)
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/* deletes an md5 from an index */
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{
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int status = 404;
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FILE *f;
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pthread_mutex_lock(&data_mutex);
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if ((f = fopen(fn, "r+")) != NULL) {
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char line[256];
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while (fgets(line, sizeof(line), f) != NULL) {
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line[32] = '\0';
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if (strcmp(line, md5) == 0) {
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/* found! just rewind, overwrite it with garbage
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and an eventual call to index_gc() will clean it
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[yes: this breaks index_len()] */
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fseek(f, -33, SEEK_CUR);
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fwrite("-", 1, 1, f);
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status = 200;
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break;
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}
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}
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fclose(f);
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}
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else
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status = 500;
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pthread_mutex_unlock(&data_mutex);
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return status;
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}
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int index_del(const char *fn, const char *id)
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/* deletes an id from an index */
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{
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xs *md5 = xs_md5_hex(id, strlen(id));
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return index_del_md5(fn, md5);
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}
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int index_gc(const char *fn)
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/* garbage-collects an index, deleting objects that are not here */
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{
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@ -772,6 +817,23 @@ int object_admire(const char *id, const char *actor, int like)
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}
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int object_unadmire(const char *id, const char *actor, int like)
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/* actor no longer likes or announces this object */
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{
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int status;
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xs *fn = _object_fn(id);
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fn = xs_replace_i(fn, ".json", like ? "_l.idx" : "_a.idx");
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status = index_del(fn, actor);
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srv_debug(1,
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xs_fmt("object_unadmire (%s) %s %s %d", like ? "Like" : "Announce", actor, fn, status));
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return status;
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}
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int _object_user_cache(snac *snac, const char *id, const char *cachedir, int del)
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/* adds or deletes from a user cache */
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{
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