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gerrit-public.fairphone.software / platform / external / fio / 4d8f87806db144552baea60d9b59e9becffe5925 / . / server.h
blob: 79449a635315b26c9c5aecde52751ff9dde2426f [file] [log] [blame]
Jens Axboe50d16972011-09-29 17:45:28 -0600[diff] [blame]1#ifndef FIO_SERVER_H
2#define FIO_SERVER_H
3
Jens Axboe132159a2011-09-30 15:01:32 -0600[diff] [blame]4#include <inttypes.h>
Jens Axboe142575e2011-09-30 17:35:45 -0600[diff] [blame]5#include <string.h>
Jens Axboe132159a2011-09-30 15:01:32 -0600[diff] [blame]6#include <endian.h>
7
8/*
9 * On-wire encoding is little endian
10 */
11struct fio_net_cmd {
12 uint16_t version; /* protocol version */
13 uint16_t opcode; /* command opcode */
14 uint32_t flags; /* modifier flags */
15 uint64_t serial; /* serial number */
16 uint32_t pad;
17 uint32_t pdu_len; /* length of post-cmd layload */
18 uint32_t cmd_crc32; /* cmd checksum */
19 uint32_t pdu_crc32; /* payload checksum */
20 uint8_t payload[0]; /* payload */
21};
22
23enum {
24 FIO_SERVER_VER = 1,
25 FIO_SERVER_VER1 = 1,
26
27 FIO_SERVER_MAX_PDU = 4096,
28
29 FIO_NET_CMD_QUIT = 1,
30 FIO_NET_CMD_JOB = 2,
31 FIO_NET_CMD_JOB_END = 3,
32 FIO_NET_CMD_ACK = 4,
33 FIO_NET_CMD_NAK = 5,
Jens Axboe37db14f2011-09-30 17:00:42 -0600[diff] [blame]34 FIO_NET_CMD_TEXT = 6,
Jens Axboe132159a2011-09-30 15:01:32 -0600[diff] [blame]35};
36
Jens Axboe50d16972011-09-29 17:45:28 -0600[diff] [blame]37extern int fio_server(void);
Jens Axboe142575e2011-09-30 17:35:45 -0600[diff] [blame]38extern int fio_server_text_output(const char *, unsigned int len);
39extern int fio_server_log(const char *format, ...);
Jens Axboe132159a2011-09-30 15:01:32 -0600[diff] [blame]40
41extern int fio_client_connect(const char *);
42extern int fio_client_send_ini(const char *);
Jens Axboe37db14f2011-09-30 17:00:42 -0600[diff] [blame]43extern int fio_handle_clients(void);
Jens Axboe132159a2011-09-30 15:01:32 -0600[diff] [blame]44
45extern int fio_recv_data(int sk, void *p, unsigned int len);
46extern int fio_send_data(int sk, const void *p, unsigned int len);
47extern void fio_net_cmd_crc(struct fio_net_cmd *);
Jens Axboe37db14f2011-09-30 17:00:42 -0600[diff] [blame]48extern struct fio_net_cmd *fio_net_cmd_read(int sk);
Jens Axboe132159a2011-09-30 15:01:32 -0600[diff] [blame]49
Jens Axboe009b1be2011-09-29 18:27:02 -0600[diff] [blame]50extern int exit_backend;
Jens Axboe132159a2011-09-30 15:01:32 -0600[diff] [blame]51extern int fio_net_port;
52
53#if __BYTE_ORDER == __LITTLE_ENDIAN
54#define le16_to_cpu(x) (x)
55#define le32_to_cpu(x) (x)
56#define le64_to_cpu(x) (x)
57#define cpu_to_le16(x) (x)
58#define cpu_to_le32(x) (x)
59#define cpu_to_le64(x) (x)
60#elif __BYTE_ORDER == __BIG_ENDIAN
61#define le16_to_cpu(x) __bswap_16(x)
62#define le32_to_cpu(x) __bswap_32(x)
63#define le64_to_cpu(x) __bswap_64(x)
64#define cpu_to_le16(x) __bswap_16(x)
65#define cpu_to_le32(x) __bswap_32(x)
66#define cpu_to_le64(x) __bswap_64(x)
67#else
68#error "Endianness not detected"
69#endif
70
Jens Axboe4d8f8782011-09-30 22:24:17 -0600[diff] [blame^]71static inline void fio_init_net_cmd(struct fio_net_cmd *cmd, uint16_t opcode,
72 const void *pdu, uint32_t pdu_len)
Jens Axboe132159a2011-09-30 15:01:32 -0600[diff] [blame]73{
74 memset(cmd, 0, sizeof(*cmd));
Jens Axboe4d8f8782011-09-30 22:24:17 -0600[diff] [blame^]75
76 cmd->version = cpu_to_le16(FIO_SERVER_VER1);
77 cmd->opcode = cpu_to_le16(FIO_NET_CMD_TEXT);
78
79 if (pdu) {
80 cmd->pdu_len = cpu_to_le32(pdu_len);
81 memcpy(&cmd->payload, pdu, pdu_len);
82 }
Jens Axboe132159a2011-09-30 15:01:32 -0600[diff] [blame]83}
Jens Axboe50d16972011-09-29 17:45:28 -0600[diff] [blame]84
85#endif