Get rid of uninitialized_var()
[fio.git] / server.h
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1#ifndef FIO_SERVER_H
2#define FIO_SERVER_H
3
132159a5 4#include <inttypes.h>
142575e6 5#include <string.h>
89c1707c 6#include <sys/time.h>
811826be 7#include <netinet/in.h>
132159a5 8
a64e88da 9#include "stat.h"
610a730c 10#include "os/os.h"
d09a64a0 11#include "diskutil.h"
a64e88da 12
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13/*
14 * On-wire encoding is little endian
15 */
16struct fio_net_cmd {
17 uint16_t version; /* protocol version */
18 uint16_t opcode; /* command opcode */
19 uint32_t flags; /* modifier flags */
af9c9fb3 20 uint64_t tag; /* passed back on reply */
132159a5 21 uint32_t pdu_len; /* length of post-cmd layload */
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22 /*
23 * These must be immediately before the payload, anything before
24 * these fields are checksummed.
25 */
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26 uint16_t cmd_crc16; /* cmd checksum */
27 uint16_t pdu_crc16; /* payload checksum */
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28 uint8_t payload[0]; /* payload */
29};
30
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31struct fio_net_int_cmd {
32 struct fio_net_cmd cmd;
33 struct flist_head list;
34 struct timeval tv;
35 uint64_t saved_tag;
36};
37
132159a5 38enum {
b7f05eb0 39 FIO_SERVER_VER = 8,
132159a5 40
5cf6be78 41 FIO_SERVER_MAX_PDU = 1024,
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42
43 FIO_NET_CMD_QUIT = 1,
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44 FIO_NET_CMD_EXIT = 2,
45 FIO_NET_CMD_JOB = 3,
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46 FIO_NET_CMD_JOBLINE = 4,
47 FIO_NET_CMD_TEXT = 5,
48 FIO_NET_CMD_TS = 6,
49 FIO_NET_CMD_GS = 7,
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50 FIO_NET_CMD_SEND_ETA = 8,
51 FIO_NET_CMD_ETA = 9,
52 FIO_NET_CMD_PROBE = 10,
53 FIO_NET_CMD_START = 11,
54 FIO_NET_CMD_STOP = 12,
d09a64a0 55 FIO_NET_CMD_DU = 13,
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56 FIO_NET_CMD_RUN = 14,
57 FIO_NET_CMD_NR = 15,
794d69ca 58
d7959186 59 FIO_NET_CMD_F_MORE = 1UL << 0,
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60
61 /* crc does not include the crc fields */
62 FIO_NET_CMD_CRC_SZ = sizeof(struct fio_net_cmd) -
63 2 * sizeof(uint16_t),
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64
65 FIO_NET_CLIENT_TIMEOUT = 5000,
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66};
67
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68struct cmd_ts_pdu {
69 struct thread_stat ts;
70 struct group_run_stats rs;
71};
72
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73struct cmd_du_pdu {
74 struct disk_util_stat dus;
75 struct disk_util_agg agg;
76};
77
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78struct cmd_probe_pdu {
79 uint8_t hostname[64];
6eb24791 80 uint8_t bigendian;
5c3f7cea 81 uint8_t fio_version[32];
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82 uint8_t os;
83 uint8_t arch;
38fdef22 84 uint8_t bpp;
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85};
86
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87struct cmd_single_line_pdu {
88 uint16_t len;
89 uint8_t text[0];
90};
91
81179eec 92struct cmd_line_pdu {
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93 uint16_t lines;
94 struct cmd_single_line_pdu options[0];
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95};
96
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97struct cmd_start_pdu {
98 uint32_t jobs;
99};
100
101struct cmd_end_pdu {
102 uint32_t error;
103};
104
402668f3 105extern int fio_start_server(char *);
13755d94 106extern int fio_server_text_output(const char *, size_t);
142575e6 107extern int fio_server_log(const char *format, ...);
af9c9fb3 108extern int fio_net_send_cmd(int, uint16_t, const void *, off_t, uint64_t);
89c1707c 109extern int fio_net_send_simple_cmd(int, uint16_t, uint64_t, struct flist_head *);
bebe6398 110extern void fio_server_set_arg(const char *);
811826be 111extern int fio_server_parse_string(const char *, char **, int *, int *, struct in_addr *, struct in6_addr *, int *);
89c1707c 112extern const char *fio_server_op(unsigned int);
7b821684 113extern void fio_server_got_signal(int);
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114
115struct thread_stat;
116struct group_run_stats;
117extern void fio_server_send_ts(struct thread_stat *, struct group_run_stats *);
118extern void fio_server_send_gs(struct group_run_stats *);
d09a64a0 119extern void fio_server_send_du(void);
cc0df00a 120extern void fio_server_idle_loop(void);
132159a5 121
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122extern int fio_clients_connect(void);
123extern int fio_clients_send_ini(const char *);
37db14fe 124extern int fio_handle_clients(void);
bebe6398 125extern int fio_client_add(const char *, void **);
fa2ea806 126extern void fio_client_add_cmd_option(void *, const char *);
bd023601 127extern void fio_client_add_ini_file(void *, const char *);
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128
129extern int fio_recv_data(int sk, void *p, unsigned int len);
130extern int fio_send_data(int sk, const void *p, unsigned int len);
131extern void fio_net_cmd_crc(struct fio_net_cmd *);
e951bdc4 132extern struct fio_net_cmd *fio_net_recv_cmd(int sk);
132159a5 133
009b1be4 134extern int exit_backend;
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135extern int fio_net_port;
136
4d8f8780 137static inline void fio_init_net_cmd(struct fio_net_cmd *cmd, uint16_t opcode,
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138 const void *pdu, uint32_t pdu_len,
139 uint64_t tag)
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140{
141 memset(cmd, 0, sizeof(*cmd));
4d8f8780 142
fa2ea806 143 cmd->version = __cpu_to_le16(FIO_SERVER_VER);
82fa6b21 144 cmd->opcode = cpu_to_le16(opcode);
af9c9fb3 145 cmd->tag = cpu_to_le64(tag);
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146
147 if (pdu) {
148 cmd->pdu_len = cpu_to_le32(pdu_len);
149 memcpy(&cmd->payload, pdu, pdu_len);
150 }
132159a5 151}
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152
153#endif