#ifndef FIO_SERVER_H
#define FIO_SERVER_H
+#include <inttypes.h>
+#include <string.h>
+#include <endian.h>
+
+/*
+ * On-wire encoding is little endian
+ */
+struct fio_net_cmd {
+ uint16_t version; /* protocol version */
+ uint16_t opcode; /* command opcode */
+ uint32_t flags; /* modifier flags */
+ uint64_t serial; /* serial number */
+ uint32_t pad;
+ uint32_t pdu_len; /* length of post-cmd layload */
+ uint32_t cmd_crc32; /* cmd checksum */
+ uint32_t pdu_crc32; /* payload checksum */
+ uint8_t payload[0]; /* payload */
+};
+
+enum {
+ FIO_SERVER_VER = 1,
+ FIO_SERVER_VER1 = 1,
+
+ FIO_SERVER_MAX_PDU = 4096,
+
+ FIO_NET_CMD_QUIT = 1,
+ FIO_NET_CMD_JOB = 2,
+ FIO_NET_CMD_JOB_END = 3,
+ FIO_NET_CMD_ACK = 4,
+ FIO_NET_CMD_NAK = 5,
+ FIO_NET_CMD_TEXT = 6,
+};
+
extern int fio_server(void);
+extern int fio_server_text_output(const char *, unsigned int len);
+extern int fio_server_log(const char *format, ...);
+
+extern int fio_client_connect(const char *);
+extern int fio_client_send_ini(const char *);
+extern int fio_handle_clients(void);
+
+extern int fio_recv_data(int sk, void *p, unsigned int len);
+extern int fio_send_data(int sk, const void *p, unsigned int len);
+extern void fio_net_cmd_crc(struct fio_net_cmd *);
+extern struct fio_net_cmd *fio_net_cmd_read(int sk);
+
extern int exit_backend;
+extern int fio_net_port;
+
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+#define le16_to_cpu(x) (x)
+#define le32_to_cpu(x) (x)
+#define le64_to_cpu(x) (x)
+#define cpu_to_le16(x) (x)
+#define cpu_to_le32(x) (x)
+#define cpu_to_le64(x) (x)
+#elif __BYTE_ORDER == __BIG_ENDIAN
+#define le16_to_cpu(x) __bswap_16(x)
+#define le32_to_cpu(x) __bswap_32(x)
+#define le64_to_cpu(x) __bswap_64(x)
+#define cpu_to_le16(x) __bswap_16(x)
+#define cpu_to_le32(x) __bswap_32(x)
+#define cpu_to_le64(x) __bswap_64(x)
+#else
+#error "Endianness not detected"
+#endif
+
+static inline void fio_init_net_cmd(struct fio_net_cmd *cmd, uint16_t opcode,
+ const void *pdu, uint32_t pdu_len)
+{
+ memset(cmd, 0, sizeof(*cmd));
+
+ cmd->version = cpu_to_le16(FIO_SERVER_VER1);
+ cmd->opcode = cpu_to_le16(FIO_NET_CMD_TEXT);
+
+ if (pdu) {
+ cmd->pdu_len = cpu_to_le32(pdu_len);
+ memcpy(&cmd->payload, pdu, pdu_len);
+ }
+}
#endif