C++ (Cpp) iscsi_set_tcp_keepidle示例

示例#1

文件： init.c 项目： botrashd/libiscsi

struct iscsi_context *
iscsi_create_context(const char *initiator_name)
{
	struct iscsi_context *iscsi;
	size_t required = ISCSI_RAW_HEADER_SIZE + ISCSI_DIGEST_SIZE;
	char *ca;

	if (!initiator_name[0]) {
		return NULL;
	}

	iscsi = malloc(sizeof(struct iscsi_context));
	if (iscsi == NULL) {
		return NULL;
	}

	memset(iscsi, 0, sizeof(struct iscsi_context));

	/* initalize transport of context */
	if (iscsi_init_transport(iscsi, TCP_TRANSPORT)) {
		iscsi_set_error(iscsi, "Failed allocating transport");
		return NULL;
	}

	strncpy(iscsi->initiator_name,initiator_name,MAX_STRING_SIZE);

	iscsi->fd = -1;

	srand(time(NULL) ^ getpid() ^ (uint32_t) ((uintptr_t) iscsi));

	/* initialize to a "random" isid */
	iscsi_set_isid_random(iscsi, rand(), 0);

	/* assume we start in security negotiation phase */
	iscsi->current_phase = ISCSI_PDU_LOGIN_CSG_SECNEG;
	iscsi->next_phase    = ISCSI_PDU_LOGIN_NSG_OPNEG;
	iscsi->secneg_phase  = ISCSI_LOGIN_SECNEG_PHASE_OFFER_CHAP;

	iscsi->max_burst_length                       = 262144;
	iscsi->first_burst_length                     = 262144;
	iscsi->initiator_max_recv_data_segment_length = 262144;
	iscsi->target_max_recv_data_segment_length    = 8192;
	iscsi->want_initial_r2t                       = ISCSI_INITIAL_R2T_NO;
	iscsi->use_initial_r2t                        = ISCSI_INITIAL_R2T_YES;
	iscsi->want_immediate_data                    = ISCSI_IMMEDIATE_DATA_YES;
	iscsi->use_immediate_data                     = ISCSI_IMMEDIATE_DATA_YES;
	iscsi->want_header_digest                     = ISCSI_HEADER_DIGEST_NONE_CRC32C;

	iscsi->tcp_keepcnt=3;
	iscsi->tcp_keepintvl=30;
	iscsi->tcp_keepidle=30;
	
	iscsi->reconnect_max_retries = -1;

	if (getenv("LIBISCSI_DEBUG") != NULL) {
		iscsi_set_log_level(iscsi, atoi(getenv("LIBISCSI_DEBUG")));
		iscsi_set_log_fn(iscsi, iscsi_log_to_stderr);
	}

	if (getenv("LIBISCSI_TCP_USER_TIMEOUT") != NULL) {
		iscsi_set_tcp_user_timeout(iscsi,atoi(getenv("LIBISCSI_TCP_USER_TIMEOUT")));
	}

	if (getenv("LIBISCSI_TCP_KEEPCNT") != NULL) {
		iscsi_set_tcp_keepcnt(iscsi,atoi(getenv("LIBISCSI_TCP_KEEPCNT")));
	}

	if (getenv("LIBISCSI_TCP_KEEPINTVL") != NULL) {
		iscsi_set_tcp_keepintvl(iscsi,atoi(getenv("LIBISCSI_TCP_KEEPINTVL")));
	}

	if (getenv("LIBISCSI_TCP_KEEPIDLE") != NULL) {
		iscsi_set_tcp_keepidle(iscsi,atoi(getenv("LIBISCSI_TCP_KEEPIDLE")));
	}

	if (getenv("LIBISCSI_TCP_SYNCNT") != NULL) {
		iscsi_set_tcp_syncnt(iscsi,atoi(getenv("LIBISCSI_TCP_SYNCNT")));
	}

	if (getenv("LIBISCSI_BIND_INTERFACES") != NULL) {
		iscsi_set_bind_interfaces(iscsi,getenv("LIBISCSI_BIND_INTERFACES"));
	}

	/* iscsi->smalloc_size is the size for small allocations. this should be
	   max(ISCSI_HEADER_SIZE, sizeof(struct iscsi_pdu), sizeof(struct iscsi_in_pdu))
	   rounded up to the next power of 2. */
	required = MAX(required, sizeof(struct iscsi_pdu));
	required = MAX(required, sizeof(struct iscsi_in_pdu));
	iscsi->smalloc_size = 1;
	while (iscsi->smalloc_size < required) {
		iscsi->smalloc_size <<= 1;
	}
	ISCSI_LOG(iscsi,5,"small allocation size is %d byte", iscsi->smalloc_size);

	ca = getenv("LIBISCSI_CACHE_ALLOCATIONS");
	if (!ca || atoi(ca) != 0) {
		iscsi->cache_allocations = 1;
	}

	return iscsi;
}

示例#2

文件： init.c 项目： jongrimm/libiscsi

struct iscsi_context *
iscsi_create_context(const char *initiator_name)
{
	struct iscsi_context *iscsi;

	iscsi = malloc(sizeof(struct iscsi_context));
	if (iscsi == NULL) {
		return NULL;
	}

	memset(iscsi, 0, sizeof(struct iscsi_context));

	iscsi->initiator_name = strdup(initiator_name);
	if (iscsi->initiator_name == NULL) {
		free(iscsi);
		return NULL;
	}

	iscsi->fd = -1;

	/* initialize to a "random" isid */
	iscsi_set_isid_random(iscsi, rand(), 0);

	/* assume we start in security negotiation phase */
	iscsi->current_phase = ISCSI_PDU_LOGIN_CSG_SECNEG;
	iscsi->next_phase    = ISCSI_PDU_LOGIN_NSG_OPNEG;
	iscsi->secneg_phase  = ISCSI_LOGIN_SECNEG_PHASE_OFFER_CHAP;

	iscsi->max_burst_length                       = 262144;
	iscsi->first_burst_length                     = 262144;
	iscsi->initiator_max_recv_data_segment_length = 262144;
	iscsi->target_max_recv_data_segment_length    = 8192;
	iscsi->want_initial_r2t                       = ISCSI_INITIAL_R2T_NO;
	iscsi->use_initial_r2t                        = ISCSI_INITIAL_R2T_NO;
	iscsi->want_immediate_data                    = ISCSI_IMMEDIATE_DATA_YES;
	iscsi->use_immediate_data                     = ISCSI_IMMEDIATE_DATA_YES;
	iscsi->want_header_digest                     = ISCSI_HEADER_DIGEST_NONE_CRC32C;

	iscsi->tcp_keepcnt=3;
	iscsi->tcp_keepintvl=30;
	iscsi->tcp_keepidle=30;

	if (getenv("LIBISCSI_DEBUG") != NULL) {
		iscsi_set_debug(iscsi,atoi(getenv("LIBISCSI_DEBUG")));
	}
	
	if (getenv("LIBISCSI_TCP_USER_TIMEOUT") != NULL) {
		iscsi_set_tcp_user_timeout(iscsi,atoi(getenv("LIBISCSI_TCP_USER_TIMEOUT")));
	}

	if (getenv("LIBISCSI_TCP_KEEPCNT") != NULL) {
		iscsi_set_tcp_keepcnt(iscsi,atoi(getenv("LIBISCSI_TCP_KEEPCNT")));
	}

	if (getenv("LIBISCSI_TCP_KEEPINTVL") != NULL) {
		iscsi_set_tcp_keepintvl(iscsi,atoi(getenv("LIBISCSI_TCP_KEEPINTVL")));
	}

	if (getenv("LIBISCSI_TCP_KEEPIDLE") != NULL) {
		iscsi_set_tcp_keepidle(iscsi,atoi(getenv("LIBISCSI_TCP_KEEPIDLE")));
	}

	if (getenv("LIBISCSI_TCP_SYNCNT") != NULL) {
		iscsi_set_tcp_syncnt(iscsi,atoi(getenv("LIBISCSI_TCP_SYNCNT")));
	}

	return iscsi;
}