#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
+#include <syslog.h>
#include "fio.h"
#include "server.h"
int exit_backend = 0;
-static char *job_buf;
-static unsigned int job_cur_len;
-static unsigned int job_max_len;
-
-static int server_fd;
+static int server_fd = -1;
int fio_send_data(int sk, const void *p, unsigned int len)
{
return 0;
}
-struct fio_net_cmd *fio_net_cmd_read(int sk)
+/*
+ * Read (and defragment, if necessary) incoming commands
+ */
+struct fio_net_cmd *fio_net_recv_cmd(int sk)
{
- struct fio_net_cmd cmd, *ret = NULL;
+ struct fio_net_cmd cmd, *cmdret = NULL;
+ size_t cmd_size = 0, pdu_offset = 0;
uint16_t crc;
+ int ret, first = 1;
+ void *pdu = NULL;
- if (fio_recv_data(sk, &cmd, sizeof(cmd)))
- return NULL;
+ do {
+ ret = fio_recv_data(sk, &cmd, sizeof(cmd));
+ if (ret)
+ break;
- /* We have a command, verify it and swap if need be */
- if (verify_convert_cmd(&cmd))
- return NULL;
+ /* We have a command, verify it and swap if need be */
+ ret = verify_convert_cmd(&cmd);
+ if (ret)
+ break;
- /* Command checks out, alloc real command and fill in */
- ret = malloc(sizeof(cmd) + cmd.pdu_len);
- memcpy(ret, &cmd, sizeof(cmd));
+ if (first)
+ cmd_size = sizeof(cmd) + cmd.pdu_len;
+ else
+ cmd_size += cmd.pdu_len;
- if (!ret->pdu_len)
- return ret;
+ cmdret = realloc(cmdret, cmd_size);
+ pdu = (void *) cmdret->payload;
- /* There's payload, get it */
- if (fio_recv_data(sk, (void *) ret + sizeof(*ret), ret->pdu_len)) {
- free(ret);
- return NULL;
- }
+ if (first)
+ memcpy(cmdret, &cmd, sizeof(cmd));
+ else
+ assert(cmdret->opcode == cmd.opcode);
+
+ if (!cmd.pdu_len)
+ break;
+
+ /* There's payload, get it */
+ pdu = (void *) cmdret->payload + pdu_offset;
+ ret = fio_recv_data(sk, pdu, cmd.pdu_len);
+ if (ret)
+ break;
+
+ /* Verify payload crc */
+ crc = crc16(pdu, cmd.pdu_len);
+ if (crc != cmd.pdu_crc16) {
+ log_err("fio: server bad crc on payload ");
+ log_err("(got %x, wanted %x)\n", cmd.pdu_crc16, crc);
+ ret = 1;
+ break;
+ }
- /* Verify payload crc */
- crc = crc16(ret->payload, ret->pdu_len);
- if (crc != ret->pdu_crc16) {
- log_err("fio: server bad crc on payload (got %x, wanted %x)\n",
- ret->pdu_crc16, crc);
- free(ret);
- return NULL;
+ pdu_offset += cmd.pdu_len;
+ cmdret->pdu_len += cmd.pdu_len;
+ first = 0;
+ } while (cmd.flags & FIO_NET_CMD_F_MORE);
+
+ if (ret) {
+ free(cmdret);
+ cmdret = NULL;
}
- return ret;
+ if (cmdret)
+ cmdret->flags &= ~FIO_NET_CMD_F_MORE;
+
+ return cmdret;
}
void fio_net_cmd_crc(struct fio_net_cmd *cmd)
{
uint32_t pdu_len;
- cmd->cmd_crc16 = cpu_to_le16(crc16(cmd, FIO_NET_CMD_CRC_SZ));
+ cmd->cmd_crc16 = __cpu_to_le16(crc16(cmd, FIO_NET_CMD_CRC_SZ));
pdu_len = le32_to_cpu(cmd->pdu_len);
if (pdu_len)
- cmd->pdu_crc16 = cpu_to_le16(crc16(cmd->payload, pdu_len));
+ cmd->pdu_crc16 = __cpu_to_le16(crc16(cmd->payload, pdu_len));
}
-int fio_net_send_cmd(int fd, uint16_t opcode, const char *buf, off_t size)
+int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size)
{
struct fio_net_cmd *cmd;
size_t this_len;
fio_init_net_cmd(cmd, opcode, buf, this_len);
if (this_len < size)
- cmd->flags |= FIO_NET_CMD_F_MORE;
+ cmd->flags = __cpu_to_le32(FIO_NET_CMD_F_MORE);
fio_net_cmd_crc(cmd);
static int send_simple_command(int sk, uint16_t opcode, uint64_t serial)
{
struct fio_net_cmd cmd = {
- .version = cpu_to_le16(FIO_SERVER_VER1),
+ .version = __cpu_to_le16(FIO_SERVER_VER1),
.opcode = cpu_to_le16(opcode),
.serial = cpu_to_le64(serial),
};
static int send_quit_command(void)
{
+ dprint(FD_NET, "server: sending quit\n");
return send_simple_command(server_fd, FIO_NET_CMD_QUIT, 0);
}
static int handle_cur_job(struct fio_net_cmd *cmd)
{
- unsigned int left = job_max_len - job_cur_len;
- int ret = 0;
-
- if (left < cmd->pdu_len) {
- job_buf = realloc(job_buf, job_max_len + 2 * cmd->pdu_len);
- job_max_len += 2 * cmd->pdu_len;
- }
-
- memcpy(job_buf + job_cur_len, cmd->payload, cmd->pdu_len);
- job_cur_len += cmd->pdu_len;
-
- /*
- * More data coming for this job
- */
- if (cmd->flags & FIO_NET_CMD_F_MORE)
- return 0;
+ void *buf = cmd->payload;
+ int ret;
- parse_jobs_ini(job_buf, 1, 0);
+ parse_jobs_ini(buf, 1, 0);
ret = exec_run();
send_quit_command();
reset_fio_state();
- free(job_buf);
- job_buf = NULL;
- job_cur_len = job_max_len = 0;
return ret;
}
{
int ret;
+ dprint(FD_NET, "server: got opcode %d\n", cmd->opcode);
+
switch (cmd->opcode) {
case FIO_NET_CMD_QUIT:
+ return 1;
+ case FIO_NET_CMD_EXIT:
exit_backend = 1;
return 1;
case FIO_NET_CMD_ACK:
/* read forever */
while (!exit_backend) {
- cmd = fio_net_cmd_read(sk);
+ cmd = fio_net_recv_cmd(sk);
if (!cmd) {
ret = 1;
break;
break;
free(cmd);
+ cmd = NULL;
}
if (cmd)
return -1;
}
+ dprint(FD_NET, "server got a connection\n");
+
server_fd = sk;
exitval = handle_connection(sk);
return exitval;
}
-int fio_server(void)
+static int fio_server(void)
{
struct sockaddr_in saddr_in;
struct sockaddr addr;
unsigned int len;
int sk, opt, ret;
+ dprint(FD_NET, "starting server\n");
+
sk = socket(AF_INET, SOCK_STREAM, 0);
if (sk < 0) {
log_err("fio: socket: %s\n", strerror(errno));
int fio_server_text_output(const char *buf, unsigned int len)
{
- return fio_net_send_cmd(server_fd, FIO_NET_CMD_TEXT, buf, len);
+ if (server_fd != -1)
+ return fio_net_send_cmd(server_fd, FIO_NET_CMD_TEXT, buf, len);
+
+ return 0;
+}
+
+static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
+{
+ dst->max_val = cpu_to_le64(src->max_val);
+ dst->min_val = cpu_to_le64(src->min_val);
+ dst->samples = cpu_to_le64(src->samples);
+ /* FIXME */
+ dst->mean = __cpu_to_le64(src->mean);
+ dst->S = __cpu_to_le64(src->S);
+}
+
+static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
+{
+ int i;
+
+ for (i = 0; i < 2; i++) {
+ dst->max_run[i] = cpu_to_le64(src->max_run[i]);
+ dst->min_run[i] = cpu_to_le64(src->min_run[i]);
+ dst->max_bw[i] = cpu_to_le64(src->max_bw[i]);
+ dst->min_bw[i] = cpu_to_le64(src->min_bw[i]);
+ dst->io_kb[i] = cpu_to_le64(src->io_kb[i]);
+ dst->agg[i] = cpu_to_le64(src->agg[i]);
+ }
+
+ dst->kb_base = cpu_to_le32(src->kb_base);
+ dst->groupid = cpu_to_le32(src->groupid);
+}
+
+/*
+ * Send a CMD_TS, which packs struct thread_stat and group_run_stats
+ * into a single payload.
+ */
+void fio_server_send_ts(struct thread_stat *ts, struct group_run_stats *rs)
+{
+ struct cmd_ts_pdu p;
+ int i, j;
+
+ strcpy(p.ts.name, ts->name);
+ strcpy(p.ts.verror, ts->verror);
+ strcpy(p.ts.description, ts->description);
+
+ p.ts.error = cpu_to_le32(ts->error);
+ p.ts.groupid = cpu_to_le32(ts->groupid);
+ p.ts.pid = cpu_to_le32(ts->pid);
+ p.ts.members = cpu_to_le32(ts->members);
+
+ for (i = 0; i < 2; i++) {
+ convert_io_stat(&p.ts.clat_stat[i], &ts->clat_stat[i]);
+ convert_io_stat(&p.ts.slat_stat[i], &ts->slat_stat[i]);
+ convert_io_stat(&p.ts.lat_stat[i], &ts->lat_stat[i]);
+ convert_io_stat(&p.ts.bw_stat[i], &ts->bw_stat[i]);
+ }
+
+ p.ts.usr_time = cpu_to_le64(ts->usr_time);
+ p.ts.sys_time = cpu_to_le64(ts->sys_time);
+ p.ts.ctx = cpu_to_le64(ts->ctx);
+ p.ts.minf = cpu_to_le64(ts->minf);
+ p.ts.majf = cpu_to_le64(ts->majf);
+ p.ts.clat_percentiles = cpu_to_le64(ts->clat_percentiles);
+ p.ts.percentile_list = NULL;
+
+ for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
+ p.ts.io_u_map[i] = cpu_to_le32(ts->io_u_map[i]);
+ p.ts.io_u_submit[i] = cpu_to_le32(ts->io_u_submit[i]);
+ p.ts.io_u_complete[i] = cpu_to_le32(ts->io_u_complete[i]);
+ }
+
+ for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
+ p.ts.io_u_lat_u[i] = cpu_to_le32(ts->io_u_lat_u[i]);
+ p.ts.io_u_lat_m[i] = cpu_to_le32(ts->io_u_lat_m[i]);
+ }
+
+ for (i = 0; i < 2; i++)
+ for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
+ p.ts.io_u_plat[i][j] = cpu_to_le32(ts->io_u_plat[i][j]);
+
+ for (i = 0; i < 3; i++) {
+ p.ts.total_io_u[i] = cpu_to_le64(ts->total_io_u[i]);
+ p.ts.short_io_u[i] = cpu_to_le64(ts->total_io_u[i]);
+ }
+
+ p.ts.total_submit = cpu_to_le64(ts->total_submit);
+ p.ts.total_complete = cpu_to_le64(ts->total_complete);
+
+ for (i = 0; i < 2; i++) {
+ p.ts.io_bytes[i] = cpu_to_le64(ts->io_bytes[i]);
+ p.ts.runtime[i] = cpu_to_le64(ts->runtime[i]);
+ }
+
+ p.ts.total_run_time = cpu_to_le64(ts->total_run_time);
+ p.ts.continue_on_error = cpu_to_le16(ts->continue_on_error);
+ p.ts.total_err_count = cpu_to_le64(ts->total_err_count);
+ p.ts.first_error = cpu_to_le32(ts->first_error);
+ p.ts.kb_base = cpu_to_le32(ts->kb_base);
+
+ convert_gs(&p.rs, rs);
+
+ fio_net_send_cmd(server_fd, FIO_NET_CMD_TS, &p, sizeof(p));
+}
+
+void fio_server_send_gs(struct group_run_stats *rs)
+{
+ struct group_run_stats gs;
+
+ convert_gs(&gs, rs);
+ fio_net_send_cmd(server_fd, FIO_NET_CMD_GS, &gs, sizeof(gs));
}
int fio_server_log(const char *format, ...)
return fio_server_text_output(buffer, len);
}
+
+int fio_start_server(int daemonize)
+{
+ pid_t pid;
+
+ if (!daemonize)
+ return fio_server();
+
+ openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER);
+ pid = fork();
+ if (pid < 0) {
+ syslog(LOG_ERR, "failed server fork");
+ return 1;
+ } else if (pid)
+ exit(0);
+
+ setsid();
+ close(STDIN_FILENO);
+ close(STDOUT_FILENO);
+ close(STDERR_FILENO);
+ f_out = NULL;
+ f_err = NULL;
+ log_syslog = 1;
+ return fio_server();
+}
projects / fio.git / blobdiff