| 30 | #include "fetch_policy_simple.h" |
| 31 | |
| 32 | FetchPolicy * |
| 33 | FetchPolicy::getInstance(const char *parameters) |
| 34 | { |
| 35 | const char *name = parameters; |
| 36 | const char *delim = strchr(parameters, ':'); |
| 37 | size_t len = (nullptr == delim ? strlen(name) : delim - name); |
| 38 | const char *params = (nullptr == delim ? nullptr : delim + 1); |
| 39 | |
| 40 | PrefetchDebug("getting '%.*s' policy instance, params: %s", (int)len, name, params); |
| 41 | FetchPolicy *p = nullptr; |
| 42 | if (6 == len && 0 == strncmp(name, "simple", 6)) { |
| 43 | p = new FetchPolicySimple(); |
| 44 | } else if (3 == len && 0 == strncmp(name, "lru", 3)) { |
| 45 | p = new FetchPolicyLru(); |
| 46 | } else { |
| 47 | PrefetchError("unrecognized fetch policy type: %.*s", (int)len, name); |
| 48 | return nullptr; |
| 49 | } |
| 50 | |
| 51 | if (p->init(params)) { |
| 52 | return p; |
| 53 | } |
| 54 | delete p; |
| 55 | |
| 56 | return nullptr; |
| 57 | } |