server: improve pidfile and log handling

[fio.git] / server.h

diff --git a/server.h b/server.h
index d68cbf52dbbaa3f90f0a8fc283ef79e84b1be57a..ea888af46c4bcf7e19947088cd2ee02db7cf5d7a 100644 (file)
--- a/server.h
+++ b/server.h
@@ -14,7 +14,7 @@ struct fio_net_cmd {
        uint16_t version;       /* protocol version */
        uint16_t opcode;        /* command opcode */
        uint32_t flags;         /* modifier flags */
-       uint64_t serial;        /* serial number */
+       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
@@ -26,7 +26,7 @@ struct fio_net_cmd {
 };
 
 enum {
-       FIO_SERVER_VER          = 4,
+       FIO_SERVER_VER          = 5,
 
        FIO_SERVER_MAX_PDU      = 1024,
 
@@ -37,10 +37,11 @@ enum {
        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_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_F_MORE      = 1UL << 0,
 
@@ -74,11 +75,11 @@ struct cmd_line_pdu {
        struct cmd_single_line_pdu options[0];
 };
 
-extern int fio_start_server(int);
-extern int fio_server_text_output(const char *, unsigned int len);
+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);
-extern int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t serial);
+extern int fio_net_send_cmd(int, uint16_t, const void *, off_t, uint64_t);
+extern int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t tag);
 extern void fio_server_set_arg(const char *);
 extern int fio_server_parse_string(const char *, char **, int *, int *, struct in_addr *);
 
@@ -86,7 +87,6 @@ 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);
@@ -104,12 +104,14 @@ 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)
+                                   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);