Function RegisterChecksumHandler

src/brpc/checksum.cpp:28–44

static ChecksumHandler s_handler_map[MAX_HANDLER_SIZE] = {{NULL, NULL, NULL}};

int RegisterChecksumHandler(ChecksumType type, ChecksumHandler handler) {
    if (NULL == handler.Compute) {
        LOG(FATAL) << "Invalid parameter: handler function is NULL";
        return -1;
    }
    int index = type;
    if (index < 0 || index >= MAX_HANDLER_SIZE) {
        LOG(FATAL) << "ChecksumType=" << type << " is out of range";
        return -1;
    }
    if (s_handler_map[index].Compute != NULL) {
        LOG(FATAL) << "ChecksumType=" << type << " was registered";
        return -1;
    }
    s_handler_map[index] = handler;
    return 0;
}

// Find ChecksumHandler by type.
// Returns NULL if not found