X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=server.h;h=99689d403d9c8c83e103776f01e0f80a5dd822b2;hp=aed61b2c0b7cf509756ae9f0c29a859c6dc50f38;hb=11e950bd785d9f03b7d35a8ee4b4704256217504;hpb=009b1be41b32bf7e32b441c6a22e3ae628ec9b89

diff --git a/server.h b/server.h
index aed61b2c..99689d40 100644
--- a/server.h
+++ b/server.h
@@ -1,7 +1,153 @@
 #ifndef FIO_SERVER_H
 #define FIO_SERVER_H
 
-extern int fio_server(void);
+#include <inttypes.h>
+#include <string.h>
+#include <sys/time.h>
+
+#include "stat.h"
+#include "os/os.h"
+#include "diskutil.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 tag;		/* passed back on reply */
+	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 */
+};
+
+struct fio_net_int_cmd {
+	struct fio_net_cmd cmd;
+	struct flist_head list;
+	struct timeval tv;
+	uint64_t saved_tag;
+};
+
+enum {
+	FIO_SERVER_VER		= 6,
+
+	FIO_SERVER_MAX_PDU	= 1024,
+
+	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_SEND_ETA	= 8,
+	FIO_NET_CMD_ETA		= 9,
+	FIO_NET_CMD_PROBE	= 10,
+	FIO_NET_CMD_START	= 11,
+	FIO_NET_CMD_STOP	= 12,
+	FIO_NET_CMD_DU		= 13,
+	FIO_NET_CMD_RUN		= 14,
+	FIO_NET_CMD_NR		= 15,
+
+	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_CLIENT_TIMEOUT	= 5000,
+};
+
+struct cmd_ts_pdu {
+	struct thread_stat ts;
+	struct group_run_stats rs;
+};
+
+struct cmd_du_pdu {
+	struct disk_util_stat dus;
+	struct disk_util_agg agg;
+};
+
+struct cmd_probe_pdu {
+	uint8_t hostname[64];
+	uint8_t bigendian;
+	uint8_t fio_major;
+	uint8_t fio_minor;
+	uint8_t fio_patch;
+	uint8_t os;
+	uint8_t arch;
+	uint8_t bpp;
+};
+
+struct cmd_single_line_pdu {
+	uint16_t len;
+	uint8_t text[0];
+};
+
+struct cmd_line_pdu {
+	uint16_t lines;
+	struct cmd_single_line_pdu options[0];
+};
+
+struct cmd_start_pdu {
+	uint32_t jobs;
+};
+
+struct cmd_end_pdu {
+	uint32_t error;
+};
+
+extern int fio_start_server(char *);
+extern int fio_server_text_output(const char *, size_t);
+extern int fio_server_log(const char *format, ...);
+extern int fio_net_send_cmd(int, uint16_t, const void *, off_t, uint64_t);
+extern int fio_net_send_simple_cmd(int, uint16_t, uint64_t, struct flist_head *);
+extern void fio_server_set_arg(const char *);
+extern int fio_server_parse_string(const char *, char **, int *, int *, struct in_addr *);
+extern const char *fio_server_op(unsigned int);
+extern void fio_server_got_signal(int);
+
+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_du(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 int fio_client_add(const char *, void **);
+extern void fio_client_add_cmd_option(void *, 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);
+
 extern int exit_backend;
+extern int fio_net_port;
+
+static inline void fio_init_net_cmd(struct fio_net_cmd *cmd, uint16_t opcode,
+				    const void *pdu, uint32_t pdu_len,
+				    uint64_t tag)
+{
+	memset(cmd, 0, sizeof(*cmd));
+
+	cmd->version	= __cpu_to_le16(FIO_SERVER_VER);
+	cmd->opcode	= cpu_to_le16(opcode);
+	cmd->tag	= cpu_to_le64(tag);
+
+	if (pdu) {
+		cmd->pdu_len	= cpu_to_le32(pdu_len);
+		memcpy(&cmd->payload, pdu, pdu_len);
+	}
+}
 
 #endif