Wider endianness support

[fio.git] / server.h

diff --git a/server.h b/server.h
index 879faaba31f3a3a2093b5fe0b4a94d3505df9410..e129ffda8e19b53d805b696f2613eb03e23eadc5 100644 (file)
--- a/server.h
+++ b/server.h
@@ -1,6 +1,154 @@
 #ifndef FIO_SERVER_H
 #define FIO_SERVER_H
 
-extern int fio_server(void);
+#include <inttypes.h>
+#include <string.h>
+
+#include "stat.h"
+#include "os/os.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 pdu_len;       /* length of post-cmd layload */
+       /*
+        * These must be immediately before the payload, anything before
+        * these fields are checksummed.
+        */
+       uint16_t cmd_crc16;     /* cmd checksum */
+       uint16_t pdu_crc16;     /* payload checksum */
+       uint8_t payload[0];     /* payload */
+};
+
+enum {
+       FIO_SERVER_VER          = 1,
+       FIO_SERVER_VER1         = 1,
+
+       FIO_SERVER_MAX_PDU      = 64,
+
+       FIO_NET_CMD_QUIT        = 1,
+       FIO_NET_CMD_EXIT        = 2,
+       FIO_NET_CMD_JOB         = 3,
+       FIO_NET_CMD_JOBLINE     = 4,
+       FIO_NET_CMD_TEXT        = 5,
+       FIO_NET_CMD_TS          = 6,
+       FIO_NET_CMD_GS          = 7,
+       FIO_NET_CMD_ETA         = 8,
+       FIO_NET_CMD_PROBE       = 9,
+       FIO_NET_CMD_START       = 10,
+       FIO_NET_CMD_STOP        = 11,
+
+       FIO_NET_CMD_F_MORE      = 1UL << 0,
+
+       /* crc does not include the crc fields */
+       FIO_NET_CMD_CRC_SZ      = sizeof(struct fio_net_cmd) -
+                                       2 * sizeof(uint16_t),
+
+       FIO_NET_CMD_JOBLINE_ARGV        = 128,
+};
+
+struct cmd_ts_pdu {
+       struct thread_stat ts;
+       struct group_run_stats rs;
+};
+
+struct cmd_probe_pdu {
+       uint8_t hostname[64];
+       uint8_t fio_major;
+       uint8_t fio_minor;
+       uint8_t fio_patch;
+};
+
+struct cmd_line_pdu {
+       uint16_t argc;
+       uint8_t argv[FIO_NET_CMD_JOBLINE_ARGV][64];
+};
+
+extern int fio_start_server(int);
+extern int fio_server_text_output(const char *, unsigned int len);
+extern int fio_server_log(const char *format, ...);
+extern int fio_net_send_cmd(int, uint16_t, const void *, off_t);
+extern int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t serial);
+
+struct thread_stat;
+struct group_run_stats;
+extern void fio_server_send_ts(struct thread_stat *, struct group_run_stats *);
+extern void fio_server_send_gs(struct group_run_stats *);
+extern void fio_server_send_status(void);
+extern void fio_server_idle_loop(void);
+
+extern int fio_clients_connect(void);
+extern int fio_clients_send_ini(const char *);
+extern int fio_handle_clients(void);
+extern void fio_client_add(const char *);
+extern void fio_client_add_cmd_option(const char *, const char *);
+
+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_recv_cmd(int sk, int block);
+
+extern int exit_backend;
+extern int fio_net_port;
+
+#ifdef FIO_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)
+#else
+#define __le16_to_cpu(x)               fio_swap16(x)
+#define __le32_to_cpu(x)               fio_swap_2(x)
+#define __le64_to_cpu(x)               fio_swap64(x)
+#define __cpu_to_le16(x)               fio_swap16(x)
+#define __cpu_to_le32(x)               fio_swap32(x)
+#define __cpu_to_le64(x)               fio_swap64(x)
+#endif
+
+#define le16_to_cpu(val) ({                    \
+       uint16_t *__val = &(val);               \
+       __le16_to_cpu(*__val);                  \
+})
+#define le32_to_cpu(val) ({                    \
+       uint32_t *__val = &(val);               \
+       __le32_to_cpu(*__val);                  \
+})
+#define le64_to_cpu(val) ({                    \
+       uint64_t *__val = &(val);               \
+       __le64_to_cpu(*__val);                  \
+})
+#define cpu_to_le16(val) ({                    \
+       uint16_t *__val = &(val);               \
+       __cpu_to_le16(*__val);                  \
+})
+#define cpu_to_le32(val) ({                    \
+       uint32_t *__val = &(val);               \
+       __cpu_to_le32(*__val);                  \
+})
+#define cpu_to_le64(val) ({                    \
+       uint64_t *__val = &(val);               \
+       __cpu_to_le64(*__val);                  \
+})
+
+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(opcode);
+
+       if (pdu) {
+               cmd->pdu_len    = cpu_to_le32(pdu_len);
+               memcpy(&cmd->payload, pdu, pdu_len);
+       }
+}
 
 #endif