#include <sys/poll.h>
#include <sys/types.h>
#include <sys/wait.h>
-#include <sys/mman.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/un.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <syslog.h>
#include <signal.h>
+#include <zlib.h>
#include "fio.h"
#include "server.h"
#include "crc/crc16.h"
+#include "lib/ieee754.h"
-int fio_net_port = 8765;
+#include "fio_version.h"
+
+int fio_net_port = FIO_NET_PORT;
int exit_backend = 0;
static int server_fd = -1;
+static char *fio_server_arg;
+static char *bind_sock;
+static struct sockaddr_in saddr_in;
+static struct sockaddr_in6 saddr_in6;
+static int use_ipv6;
+
+struct fio_fork_item {
+ struct flist_head list;
+ int exitval;
+ int signal;
+ int exited;
+ pid_t pid;
+};
+
+/* Created on fork on new connection */
+static FLIST_HEAD(conn_list);
+
+/* Created on job fork from connection */
+static FLIST_HEAD(job_list);
+
+static const char *fio_server_ops[FIO_NET_CMD_NR] = {
+ "",
+ "QUIT",
+ "EXIT",
+ "JOB",
+ "JOBLINE",
+ "TEXT",
+ "TS",
+ "GS",
+ "SEND_ETA",
+ "ETA",
+ "PROBE",
+ "START",
+ "STOP",
+ "DISK_UTIL",
+ "SERVER_START",
+ "ADD_JOB",
+ "CMD_RUN"
+ "CMD_IOLOG",
+};
+
+const char *fio_server_op(unsigned int op)
+{
+ static char buf[32];
-int fio_send_data(int sk, const void *p, unsigned int len)
+ if (op < FIO_NET_CMD_NR)
+ return fio_server_ops[op];
+
+ sprintf(buf, "UNKNOWN/%d", op);
+ return buf;
+}
+
+static ssize_t iov_total_len(const struct iovec *iov, int count)
{
- assert(len <= sizeof(struct fio_net_cmd) + FIO_SERVER_MAX_PDU);
+ ssize_t ret = 0;
- do {
- int ret = send(sk, p, len, 0);
+ while (count--) {
+ ret += iov->iov_len;
+ iov++;
+ }
+
+ return ret;
+}
+static int fio_sendv_data(int sk, struct iovec *iov, int count)
+{
+ ssize_t total_len = iov_total_len(iov, count);
+ ssize_t ret;
+
+ do {
+ ret = writev(sk, iov, count);
if (ret > 0) {
- len -= ret;
- if (!len)
+ total_len -= ret;
+ if (!total_len)
break;
- p += ret;
- continue;
+
+ while (ret) {
+ if (ret >= iov->iov_len) {
+ ret -= iov->iov_len;
+ iov++;
+ continue;
+ }
+ iov->iov_base += ret;
+ iov->iov_len -= ret;
+ ret = 0;
+ }
} else if (!ret)
break;
else if (errno == EAGAIN || errno == EINTR)
continue;
+ else
+ break;
} while (!exit_backend);
- if (!len)
+ if (!total_len)
return 0;
+ if (errno)
+ return -errno;
+
return 1;
}
+int fio_send_data(int sk, const void *p, unsigned int len)
+{
+ struct iovec iov = { .iov_base = (void *) p, .iov_len = len };
+
+ assert(len <= sizeof(struct fio_net_cmd) + FIO_SERVER_MAX_FRAGMENT_PDU);
+
+ return fio_sendv_data(sk, &iov, 1);
+}
+
int fio_recv_data(int sk, void *p, unsigned int len)
{
do {
break;
else if (errno == EAGAIN || errno == EINTR)
continue;
+ else
+ break;
} while (!exit_backend);
if (!len)
cmd->cmd_crc16 = le16_to_cpu(cmd->cmd_crc16);
cmd->pdu_crc16 = le16_to_cpu(cmd->pdu_crc16);
- crc = crc16(cmd, FIO_NET_CMD_CRC_SZ);
+ crc = fio_crc16(cmd, FIO_NET_CMD_CRC_SZ);
if (crc != cmd->cmd_crc16) {
log_err("fio: server bad crc on command (got %x, wanted %x)\n",
cmd->cmd_crc16, crc);
cmd->version = le16_to_cpu(cmd->version);
cmd->opcode = le16_to_cpu(cmd->opcode);
cmd->flags = le32_to_cpu(cmd->flags);
- cmd->serial = le64_to_cpu(cmd->serial);
+ cmd->tag = le64_to_cpu(cmd->tag);
cmd->pdu_len = le32_to_cpu(cmd->pdu_len);
switch (cmd->version) {
- case FIO_SERVER_VER1:
+ case FIO_SERVER_VER:
break;
default:
log_err("fio: bad server cmd version %d\n", cmd->version);
return 1;
}
- if (cmd->pdu_len > FIO_SERVER_MAX_PDU) {
+ if (cmd->pdu_len > FIO_SERVER_MAX_FRAGMENT_PDU) {
log_err("fio: command payload too large: %u\n", cmd->pdu_len);
return 1;
}
/*
* Read (and defragment, if necessary) incoming commands
*/
-struct fio_net_cmd *fio_net_recv_cmd(int sk, int block)
+struct fio_net_cmd *fio_net_recv_cmd(int sk)
{
struct fio_net_cmd cmd, *cmdret = NULL;
size_t cmd_size = 0, pdu_offset = 0;
void *pdu = NULL;
do {
- struct pollfd pfd;
-
- pfd.fd = sk;
- pfd.events = POLLIN;
- ret = 0;
- do {
- int timeo = block ? 100 : 10;
-
- ret = poll(&pfd, 1, timeo);
- if (ret < 0) {
- if (errno == EINTR)
- break;
- log_err("fio: poll: %s\n", strerror(errno));
- break;
- } else if (!ret) {
- if (!block)
- return NULL;
- continue;
- }
-
- if (pfd.revents & POLLIN)
- break;
- if (pfd.revents & (POLLERR|POLLHUP)) {
- ret = 1;
- break;
- }
- } while (ret >= 0 && block);
-
- if (ret < 0)
- break;
-
ret = fio_recv_data(sk, &cmd, sizeof(cmd));
if (ret)
break;
if (first)
memcpy(cmdret, &cmd, sizeof(cmd));
- else
- assert(cmdret->opcode == cmd.opcode);
+ else if (cmdret->opcode != cmd.opcode) {
+ log_err("fio: fragment opcode mismatch (%d != %d)\n",
+ cmdret->opcode, cmd.opcode);
+ ret = 1;
+ break;
+ }
if (!cmd.pdu_len)
break;
break;
/* Verify payload crc */
- crc = crc16(pdu, cmd.pdu_len);
+ crc = fio_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);
cmdret = NULL;
} else if (cmdret) {
/* zero-terminate text input */
- if (cmdret->pdu_len && (cmdret->opcode == FIO_NET_CMD_TEXT ||
- cmdret->opcode == FIO_NET_CMD_JOB)) {
- char *buf = (char *) cmdret->payload;
-
- buf[cmdret->pdu_len ] = '\0';
+ if (cmdret->pdu_len) {
+ if (cmdret->opcode == FIO_NET_CMD_TEXT) {
+ struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmdret->payload;
+ char *buf = (char *) pdu->buf;
+
+ buf[pdu->buf_len] = '\0';
+ } else if (cmdret->opcode == FIO_NET_CMD_JOB) {
+ struct cmd_job_pdu *pdu = (struct cmd_job_pdu *) cmdret->payload;
+ char *buf = (char *) pdu->buf;
+ int len = le32_to_cpu(pdu->buf_len);
+
+ buf[len] = '\0';
+ }
}
+
/* frag flag is internal */
cmdret->flags &= ~FIO_NET_CMD_F_MORE;
}
return cmdret;
}
-void fio_net_cmd_crc(struct fio_net_cmd *cmd)
+static void add_reply(uint64_t tag, struct flist_head *list)
+{
+ struct fio_net_cmd_reply *reply = (struct fio_net_cmd_reply *) tag;
+
+ flist_add_tail(&reply->list, list);
+}
+
+static uint64_t alloc_reply(uint64_t tag, uint16_t opcode)
+{
+ struct fio_net_cmd_reply *reply;
+
+ reply = calloc(1, sizeof(*reply));
+ INIT_FLIST_HEAD(&reply->list);
+ gettimeofday(&reply->tv, NULL);
+ reply->saved_tag = tag;
+ reply->opcode = opcode;
+
+ return (uintptr_t) reply;
+}
+
+static void free_reply(uint64_t tag)
+{
+ struct fio_net_cmd_reply *reply = (struct fio_net_cmd_reply *) tag;
+
+ free(reply);
+}
+
+void fio_net_cmd_crc_pdu(struct fio_net_cmd *cmd, const void *pdu)
{
uint32_t pdu_len;
- cmd->cmd_crc16 = __cpu_to_le16(crc16(cmd, FIO_NET_CMD_CRC_SZ));
+ cmd->cmd_crc16 = __cpu_to_le16(fio_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(fio_crc16(pdu, pdu_len));
+}
+
+void fio_net_cmd_crc(struct fio_net_cmd *cmd)
+{
+ fio_net_cmd_crc_pdu(cmd, cmd->payload);
}
-int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size)
+int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size,
+ uint64_t *tagptr, struct flist_head *list)
{
- struct fio_net_cmd *cmd;
- size_t this_len;
+ struct fio_net_cmd *cmd = NULL;
+ size_t this_len, cur_len = 0;
+ uint64_t tag;
int ret;
+ if (list) {
+ assert(tagptr);
+ tag = *tagptr = alloc_reply(*tagptr, opcode);
+ } else
+ tag = tagptr ? *tagptr : 0;
+
do {
this_len = size;
- if (this_len > FIO_SERVER_MAX_PDU)
- this_len = FIO_SERVER_MAX_PDU;
+ if (this_len > FIO_SERVER_MAX_FRAGMENT_PDU)
+ this_len = FIO_SERVER_MAX_FRAGMENT_PDU;
+
+ if (!cmd || cur_len < sizeof(*cmd) + this_len) {
+ if (cmd)
+ free(cmd);
- cmd = malloc(sizeof(*cmd) + this_len);
+ cur_len = sizeof(*cmd) + this_len;
+ cmd = malloc(cur_len);
+ }
- fio_init_net_cmd(cmd, opcode, buf, this_len);
+ fio_init_net_cmd(cmd, opcode, buf, this_len, tag);
if (this_len < size)
cmd->flags = __cpu_to_le32(FIO_NET_CMD_F_MORE);
fio_net_cmd_crc(cmd);
ret = fio_send_data(fd, cmd, sizeof(*cmd) + this_len);
- free(cmd);
size -= this_len;
buf += this_len;
} while (!ret && size);
+ if (list) {
+ if (ret)
+ free_reply(tag);
+ else
+ add_reply(tag, list);
+ }
+
+ if (cmd)
+ free(cmd);
+
return ret;
}
-int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t serial)
+static int fio_net_send_simple_stack_cmd(int sk, uint16_t opcode, uint64_t tag)
{
- struct fio_net_cmd cmd = {
- .version = __cpu_to_le16(FIO_SERVER_VER1),
- .opcode = cpu_to_le16(opcode),
- .serial = cpu_to_le64(serial),
- };
+ struct fio_net_cmd cmd;
+ fio_init_net_cmd(&cmd, opcode, NULL, 0, tag);
fio_net_cmd_crc(&cmd);
return fio_send_data(sk, &cmd, sizeof(cmd));
}
-static int fio_server_send_quit_cmd(void)
+/*
+ * If 'list' is non-NULL, then allocate and store the sent command for
+ * later verification.
+ */
+int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t tag,
+ struct flist_head *list)
+{
+ int ret;
+
+ if (list)
+ tag = alloc_reply(tag, opcode);
+
+ ret = fio_net_send_simple_stack_cmd(sk, opcode, tag);
+ if (ret) {
+ if (list)
+ free_reply(tag);
+
+ return ret;
+ }
+
+ if (list)
+ add_reply(tag, list);
+
+ return 0;
+}
+
+int fio_net_send_quit(int sk)
{
dprint(FD_NET, "server: sending quit\n");
- return fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_QUIT, 0);
+
+ return fio_net_send_simple_cmd(sk, FIO_NET_CMD_QUIT, 0, NULL);
}
-static int handle_job_cmd(struct fio_net_cmd *cmd)
+static int fio_net_send_ack(int sk, struct fio_net_cmd *cmd, int error,
+ int signal)
+{
+ struct cmd_end_pdu epdu;
+ uint64_t tag = 0;
+
+ if (cmd)
+ tag = cmd->tag;
+
+ epdu.error = __cpu_to_le32(error);
+ epdu.signal = __cpu_to_le32(signal);
+ return fio_net_send_cmd(sk, FIO_NET_CMD_STOP, &epdu, sizeof(epdu), &tag, NULL);
+}
+
+int fio_net_send_stop(int sk, int error, int signal)
+{
+ dprint(FD_NET, "server: sending stop (%d, %d)\n", error, signal);
+ return fio_net_send_ack(sk, NULL, error, signal);
+}
+
+static void fio_server_add_fork_item(pid_t pid, struct flist_head *list)
+{
+ struct fio_fork_item *ffi;
+
+ ffi = malloc(sizeof(*ffi));
+ ffi->exitval = 0;
+ ffi->signal = 0;
+ ffi->exited = 0;
+ ffi->pid = pid;
+ flist_add_tail(&ffi->list, list);
+}
+
+static void fio_server_add_conn_pid(pid_t pid)
+{
+ dprint(FD_NET, "server: forked off connection job (pid=%u)\n", pid);
+ fio_server_add_fork_item(pid, &conn_list);
+}
+
+static void fio_server_add_job_pid(pid_t pid)
+{
+ dprint(FD_NET, "server: forked off job job (pid=%u)\n", pid);
+ fio_server_add_fork_item(pid, &job_list);
+}
+
+static void fio_server_check_fork_item(struct fio_fork_item *ffi)
+{
+ int ret, status;
+
+ ret = waitpid(ffi->pid, &status, WNOHANG);
+ if (ret < 0) {
+ if (errno == ECHILD) {
+ log_err("fio: connection pid %u disappeared\n", ffi->pid);
+ ffi->exited = 1;
+ } else
+ log_err("fio: waitpid: %s\n", strerror(errno));
+ } else if (ret == ffi->pid) {
+ if (WIFSIGNALED(status)) {
+ ffi->signal = WTERMSIG(status);
+ ffi->exited = 1;
+ }
+ if (WIFEXITED(status)) {
+ if (WEXITSTATUS(status))
+ ffi->exitval = WEXITSTATUS(status);
+ ffi->exited = 1;
+ }
+ }
+}
+
+static void fio_server_fork_item_done(struct fio_fork_item *ffi)
+{
+ dprint(FD_NET, "pid %u exited, sig=%u, exitval=%d\n", ffi->pid, ffi->signal, ffi->exitval);
+
+ /*
+ * Fold STOP and QUIT...
+ */
+ fio_net_send_stop(server_fd, ffi->exitval, ffi->signal);
+ fio_net_send_quit(server_fd);
+ flist_del(&ffi->list);
+ free(ffi);
+}
+
+static void fio_server_check_fork_items(struct flist_head *list)
+{
+ struct flist_head *entry, *tmp;
+ struct fio_fork_item *ffi;
+
+ flist_for_each_safe(entry, tmp, list) {
+ ffi = flist_entry(entry, struct fio_fork_item, list);
+
+ fio_server_check_fork_item(ffi);
+
+ if (ffi->exited)
+ fio_server_fork_item_done(ffi);
+ }
+}
+
+static void fio_server_check_jobs(void)
+{
+ fio_server_check_fork_items(&job_list);
+}
+
+static void fio_server_check_conns(void)
+{
+ fio_server_check_fork_items(&conn_list);
+}
+
+static int handle_run_cmd(struct fio_net_cmd *cmd)
{
- char *buf = (char *) cmd->payload;
+ pid_t pid;
int ret;
- if (parse_jobs_ini(buf, 1, 0))
- return -1;
+ set_genesis_time();
- fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_START, 0);
+ pid = fork();
+ if (pid) {
+ fio_server_add_job_pid(pid);
+ return 0;
+ }
- ret = exec_run();
- fio_server_send_quit_cmd();
- reset_fio_state();
- return ret;
+ ret = fio_backend();
+ _exit(ret);
+}
+
+static int handle_job_cmd(struct fio_net_cmd *cmd)
+{
+ struct cmd_job_pdu *pdu = (struct cmd_job_pdu *) cmd->payload;
+ void *buf = pdu->buf;
+ struct cmd_start_pdu spdu;
+
+ pdu->buf_len = le32_to_cpu(pdu->buf_len);
+ pdu->client_type = le32_to_cpu(pdu->client_type);
+
+ if (parse_jobs_ini(buf, 1, 0, pdu->client_type)) {
+ fio_net_send_quit(server_fd);
+ return -1;
+ }
+
+ spdu.jobs = cpu_to_le32(thread_number);
+ fio_net_send_cmd(server_fd, FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, NULL);
+ return 0;
}
static int handle_jobline_cmd(struct fio_net_cmd *cmd)
{
- struct cmd_line_pdu *pdu = (struct cmd_line_pdu *) cmd->payload;
- char *argv[FIO_NET_CMD_JOBLINE_ARGV];
- int ret, i;
+ void *pdu = cmd->payload;
+ struct cmd_single_line_pdu *cslp;
+ struct cmd_line_pdu *clp;
+ unsigned long offset;
+ struct cmd_start_pdu spdu;
+ char **argv;
+ int i;
- pdu->argc = le16_to_cpu(pdu->argc);
+ clp = pdu;
+ clp->lines = le16_to_cpu(clp->lines);
+ clp->client_type = le16_to_cpu(clp->client_type);
+ argv = malloc(clp->lines * sizeof(char *));
+ offset = sizeof(*clp);
- dprint(FD_NET, "server: %d command line args\n", pdu->argc);
+ dprint(FD_NET, "server: %d command line args\n", clp->lines);
- for (i = 0; i < pdu->argc; i++) {
- argv[i] = (char *) pdu->argv[i];
+ for (i = 0; i < clp->lines; i++) {
+ cslp = pdu + offset;
+ argv[i] = (char *) cslp->text;
+
+ offset += sizeof(*cslp) + le16_to_cpu(cslp->len);
dprint(FD_NET, "server: %d: %s\n", i, argv[i]);
}
- if (parse_cmd_line(pdu->argc, argv))
+ if (parse_cmd_line(clp->lines, argv, clp->client_type)) {
+ fio_net_send_quit(server_fd);
+ free(argv);
return -1;
+ }
- fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_START, 0);
+ free(argv);
- ret = exec_run();
- fio_server_send_quit_cmd();
- reset_fio_state();
- return ret;
+ spdu.jobs = cpu_to_le32(thread_number);
+ fio_net_send_cmd(server_fd, FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, NULL);
+ return 0;
}
static int handle_probe_cmd(struct fio_net_cmd *cmd)
{
struct cmd_probe_pdu probe;
+ uint64_t tag = cmd->tag;
+
+ dprint(FD_NET, "server: sending probe reply\n");
memset(&probe, 0, sizeof(probe));
gethostname((char *) probe.hostname, sizeof(probe.hostname));
probe.fio_minor = FIO_MINOR;
probe.fio_patch = FIO_PATCH;
- return fio_net_send_cmd(server_fd, FIO_NET_CMD_PROBE, &probe, sizeof(probe));
+ probe.os = FIO_OS;
+ probe.arch = FIO_ARCH;
+
+ probe.bpp = sizeof(void *);
+
+ return fio_net_send_cmd(server_fd, FIO_NET_CMD_PROBE, &probe, sizeof(probe), &tag, NULL);
+}
+
+static int handle_send_eta_cmd(struct fio_net_cmd *cmd)
+{
+ struct jobs_eta *je;
+ size_t size;
+ uint64_t tag = cmd->tag;
+ int i;
+
+ if (!thread_number)
+ return 0;
+
+ size = sizeof(*je) + thread_number * sizeof(char) + 1;
+ je = malloc(size);
+ memset(je, 0, size);
+
+ if (!calc_thread_status(je, 1)) {
+ free(je);
+ return 0;
+ }
+
+ dprint(FD_NET, "server sending status\n");
+
+ je->nr_running = cpu_to_le32(je->nr_running);
+ je->nr_ramp = cpu_to_le32(je->nr_ramp);
+ je->nr_pending = cpu_to_le32(je->nr_pending);
+ je->files_open = cpu_to_le32(je->files_open);
+
+ for (i = 0; i < 2; i++) {
+ je->m_rate[i] = cpu_to_le32(je->m_rate[i]);
+ je->t_rate[i] = cpu_to_le32(je->t_rate[i]);
+ je->m_iops[i] = cpu_to_le32(je->m_iops[i]);
+ je->t_iops[i] = cpu_to_le32(je->t_iops[i]);
+ je->rate[i] = cpu_to_le32(je->rate[i]);
+ je->iops[i] = cpu_to_le32(je->iops[i]);
+ }
+
+ je->elapsed_sec = cpu_to_le64(je->elapsed_sec);
+ je->eta_sec = cpu_to_le64(je->eta_sec);
+ je->nr_threads = cpu_to_le32(je->nr_threads);
+
+ fio_net_send_cmd(server_fd, FIO_NET_CMD_ETA, je, size, &tag, NULL);
+ free(je);
+ return 0;
+}
+
+static int send_update_job_reply(int fd, uint64_t __tag, int error)
+{
+ uint64_t tag = __tag;
+ uint32_t pdu_error;
+
+ pdu_error = __cpu_to_le32(error);
+ return fio_net_send_cmd(fd, FIO_NET_CMD_UPDATE_JOB, &pdu_error, sizeof(pdu_error), &tag, NULL);
+}
+
+static int handle_update_job_cmd(struct fio_net_cmd *cmd)
+{
+ struct cmd_add_job_pdu *pdu = (struct cmd_add_job_pdu *) cmd->payload;
+ struct thread_data *td;
+ uint32_t tnumber;
+
+ tnumber = le32_to_cpu(pdu->thread_number);
+
+ dprint(FD_NET, "server: updating options for job %u\n", tnumber);
+
+ if (tnumber >= thread_number) {
+ send_update_job_reply(server_fd, cmd->tag, ENODEV);
+ return 0;
+ }
+
+ td = &threads[tnumber];
+ convert_thread_options_to_cpu(&td->o, &pdu->top);
+ send_update_job_reply(server_fd, cmd->tag, 0);
+ return 0;
}
static int handle_command(struct fio_net_cmd *cmd)
{
int ret;
- dprint(FD_NET, "server: got opcode %d\n", cmd->opcode);
+ dprint(FD_NET, "server: got op [%s], pdu=%u, tag=%lx\n",
+ fio_server_op(cmd->opcode), cmd->pdu_len, cmd->tag);
switch (cmd->opcode) {
case FIO_NET_CMD_QUIT:
case FIO_NET_CMD_PROBE:
ret = handle_probe_cmd(cmd);
break;
+ case FIO_NET_CMD_SEND_ETA:
+ ret = handle_send_eta_cmd(cmd);
+ break;
+ case FIO_NET_CMD_RUN:
+ ret = handle_run_cmd(cmd);
+ break;
+ case FIO_NET_CMD_UPDATE_JOB:
+ ret = handle_update_job_cmd(cmd);
+ break;
default:
- log_err("fio: unknown opcode: %d\n", cmd->opcode);
+ log_err("fio: unknown opcode: %s\n", fio_server_op(cmd->opcode));
ret = 1;
}
return ret;
}
-static int handle_connection(int sk, int block)
+static int handle_connection(int sk)
{
struct fio_net_cmd *cmd = NULL;
int ret = 0;
+ reset_fio_state();
+ INIT_FLIST_HEAD(&job_list);
+ server_fd = sk;
+
/* read forever */
while (!exit_backend) {
- cmd = fio_net_recv_cmd(sk, block);
+ struct pollfd pfd = {
+ .fd = sk,
+ .events = POLLIN,
+ };
+
+ ret = 0;
+ do {
+ int timeout = 1000;
+
+ if (!flist_empty(&job_list))
+ timeout = 100;
+
+ ret = poll(&pfd, 1, timeout);
+ if (ret < 0) {
+ if (errno == EINTR)
+ break;
+ log_err("fio: poll: %s\n", strerror(errno));
+ break;
+ } else if (!ret) {
+ fio_server_check_jobs();
+ continue;
+ }
+
+ if (pfd.revents & POLLIN)
+ break;
+ if (pfd.revents & (POLLERR|POLLHUP)) {
+ ret = 1;
+ break;
+ }
+ } while (!exit_backend);
+
+ fio_server_check_jobs();
+
+ if (ret < 0)
+ break;
+
+ cmd = fio_net_recv_cmd(sk);
if (!cmd) {
ret = -1;
break;
if (cmd)
free(cmd);
- return ret;
-}
-
-void fio_server_idle_loop(void)
-{
- if (server_fd != -1)
- handle_connection(server_fd, 0);
+ close(sk);
+ _exit(ret);
}
static int accept_loop(int listen_sk)
{
struct sockaddr_in addr;
- unsigned int len = sizeof(addr);
+ fio_socklen_t len = sizeof(addr);
struct pollfd pfd;
- int ret, sk, flags, exitval = 0;
+ int ret = 0, sk, flags, exitval = 0;
dprint(FD_NET, "server enter accept loop\n");
flags = fcntl(listen_sk, F_GETFL);
flags |= O_NONBLOCK;
fcntl(listen_sk, F_SETFL, flags);
-again:
- pfd.fd = listen_sk;
- pfd.events = POLLIN;
- do {
- ret = poll(&pfd, 1, 100);
- if (ret < 0) {
- if (errno == EINTR)
- break;
- log_err("fio: poll: %s\n", strerror(errno));
- goto out;
- } else if (!ret)
- continue;
- if (pfd.revents & POLLIN)
- break;
- } while (!exit_backend);
+ while (!exit_backend) {
+ pid_t pid;
- if (exit_backend)
- goto out;
+ pfd.fd = listen_sk;
+ pfd.events = POLLIN;
+ do {
+ int timeout = 1000;
- sk = accept(listen_sk, (struct sockaddr *) &addr, &len);
- if (sk < 0) {
- log_err("fio: accept: %s\n", strerror(errno));
- return -1;
- }
+ if (!flist_empty(&conn_list))
+ timeout = 100;
- dprint(FD_NET, "server: connect from %s\n", inet_ntoa(addr.sin_addr));
+ ret = poll(&pfd, 1, timeout);
+ if (ret < 0) {
+ if (errno == EINTR)
+ break;
+ log_err("fio: poll: %s\n", strerror(errno));
+ break;
+ } else if (!ret) {
+ fio_server_check_conns();
+ continue;
+ }
- server_fd = sk;
+ if (pfd.revents & POLLIN)
+ break;
+ } while (!exit_backend);
- exitval = handle_connection(sk, 1);
+ fio_server_check_conns();
- server_fd = -1;
- close(sk);
+ if (exit_backend || ret < 0)
+ break;
- if (!exit_backend)
- goto again;
+ sk = accept(listen_sk, (struct sockaddr *) &addr, &len);
+ if (sk < 0) {
+ log_err("fio: accept: %s\n", strerror(errno));
+ return -1;
+ }
+
+ dprint(FD_NET, "server: connect from %s\n", inet_ntoa(addr.sin_addr));
+
+ pid = fork();
+ if (pid) {
+ close(sk);
+ fio_server_add_conn_pid(pid);
+ continue;
+ }
+
+ /* exits */
+ handle_connection(sk);
+ }
-out:
return exitval;
}
-int fio_server_text_output(const char *buf, unsigned int len)
+int fio_server_text_output(int level, const char *buf, size_t len)
{
- if (server_fd != -1)
- return fio_net_send_cmd(server_fd, FIO_NET_CMD_TEXT, buf, len);
+ struct cmd_text_pdu *pdu;
+ unsigned int tlen;
+ struct timeval tv;
- return 0;
+ if (server_fd == -1)
+ return log_local_buf(buf, len);
+
+ tlen = sizeof(*pdu) + len;
+ pdu = malloc(tlen);
+
+ pdu->level = __cpu_to_le32(level);
+ pdu->buf_len = __cpu_to_le32(len);
+
+ gettimeofday(&tv, NULL);
+ pdu->log_sec = __cpu_to_le64(tv.tv_sec);
+ pdu->log_usec = __cpu_to_le64(tv.tv_usec);
+
+ memcpy(pdu->buf, buf, len);
+
+ fio_net_send_cmd(server_fd, FIO_NET_CMD_TEXT, pdu, tlen, NULL, NULL);
+ free(pdu);
+ return len;
}
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);
+
+ /*
+ * Encode to IEEE 754 for network transfer
+ */
+ dst->mean.u.i = __cpu_to_le64(fio_double_to_uint64(src->mean.u.f));
+ dst->S.u.i = __cpu_to_le64(fio_double_to_uint64(src->S.u.f));
}
static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
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);
+ p.ts.error = cpu_to_le32(ts->error);
+ p.ts.thread_number = cpu_to_le32(ts->thread_number);
+ 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]);
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_LIST_MAX_LEN; i++) {
+ fio_fp64_t *src = &ts->percentile_list[i];
+ fio_fp64_t *dst = &p.ts.percentile_list[i];
+
+ dst->u.i = __cpu_to_le64(fio_double_to_uint64(src->u.f));
+ }
for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
p.ts.io_u_map[i] = cpu_to_le32(ts->io_u_map[i]);
convert_gs(&p.rs, rs);
- fio_net_send_cmd(server_fd, FIO_NET_CMD_TS, &p, sizeof(p));
+ fio_net_send_cmd(server_fd, FIO_NET_CMD_TS, &p, sizeof(p), NULL, NULL);
}
void fio_server_send_gs(struct group_run_stats *rs)
dprint(FD_NET, "server sending group run stats\n");
convert_gs(&gs, rs);
- fio_net_send_cmd(server_fd, FIO_NET_CMD_GS, &gs, sizeof(gs));
+ fio_net_send_cmd(server_fd, FIO_NET_CMD_GS, &gs, sizeof(gs), NULL, NULL);
}
-void fio_server_send_status(void)
+static void convert_agg(struct disk_util_agg *dst, struct disk_util_agg *src)
{
- struct jobs_eta *je;
- size_t size;
- void *buf;
int i;
- size = sizeof(*je) + thread_number * sizeof(char);
- buf = malloc(size);
- memset(buf, 0, size);
- je = buf;
-
- if (!calc_thread_status(je)) {
- free(je);
- return;
+ for (i = 0; i < 2; i++) {
+ dst->ios[i] = cpu_to_le32(src->ios[i]);
+ dst->merges[i] = cpu_to_le32(src->merges[i]);
+ dst->sectors[i] = cpu_to_le64(src->sectors[i]);
+ dst->ticks[i] = cpu_to_le32(src->ticks[i]);
}
- dprint(FD_NET, "server sending status\n");
+ dst->io_ticks = cpu_to_le32(src->io_ticks);
+ dst->time_in_queue = cpu_to_le32(src->time_in_queue);
+ dst->slavecount = cpu_to_le32(src->slavecount);
+ dst->max_util.u.i = __cpu_to_le64(fio_double_to_uint64(src->max_util.u.f));
+}
- je->nr_running = cpu_to_le32(je->nr_running);
- je->nr_ramp = cpu_to_le32(je->nr_ramp);
- je->nr_pending = cpu_to_le32(je->nr_pending);
- je->files_open = cpu_to_le32(je->files_open);
- je->m_rate = cpu_to_le32(je->m_rate);
- je->t_rate = cpu_to_le32(je->t_rate);
- je->m_iops = cpu_to_le32(je->m_iops);
- je->t_iops = cpu_to_le32(je->t_iops);
+static void convert_dus(struct disk_util_stat *dst, struct disk_util_stat *src)
+{
+ int i;
+
+ strcpy((char *) dst->name, (char *) src->name);
for (i = 0; i < 2; i++) {
- je->rate[i] = cpu_to_le32(je->rate[i]);
- je->iops[i] = cpu_to_le32(je->iops[i]);
+ dst->ios[i] = cpu_to_le32(src->ios[i]);
+ dst->merges[i] = cpu_to_le32(src->merges[i]);
+ dst->sectors[i] = cpu_to_le64(src->sectors[i]);
+ dst->ticks[i] = cpu_to_le32(src->ticks[i]);
}
- je->elapsed_sec = cpu_to_le32(je->nr_running);
- je->eta_sec = cpu_to_le64(je->eta_sec);
+ dst->io_ticks = cpu_to_le32(src->io_ticks);
+ dst->time_in_queue = cpu_to_le32(src->time_in_queue);
+ dst->msec = cpu_to_le64(src->msec);
+}
- fio_net_send_cmd(server_fd, FIO_NET_CMD_ETA, buf, size);
- free(je);
+void fio_server_send_du(void)
+{
+ struct disk_util *du;
+ struct flist_head *entry;
+ struct cmd_du_pdu pdu;
+
+ dprint(FD_NET, "server: sending disk_util %d\n", !flist_empty(&disk_list));
+
+ memset(&pdu, 0, sizeof(pdu));
+
+ flist_for_each(entry, &disk_list) {
+ du = flist_entry(entry, struct disk_util, list);
+
+ convert_dus(&pdu.dus, &du->dus);
+ convert_agg(&pdu.agg, &du->agg);
+
+ fio_net_send_cmd(server_fd, FIO_NET_CMD_DU, &pdu, sizeof(pdu), NULL, NULL);
+ }
}
-int fio_server_log(const char *format, ...)
+/*
+ * Send a command with a separate PDU, not inlined in the command
+ */
+static int fio_send_cmd_ext_pdu(int sk, uint16_t opcode, const void *buf,
+ off_t size, uint64_t tag, uint32_t flags)
{
- char buffer[1024];
- va_list args;
- size_t len;
+ struct fio_net_cmd cmd;
+ struct iovec iov[2];
- dprint(FD_NET, "server log\n");
+ iov[0].iov_base = &cmd;
+ iov[0].iov_len = sizeof(cmd);
+ iov[1].iov_base = (void *) buf;
+ iov[1].iov_len = size;
- va_start(args, format);
- len = vsnprintf(buffer, sizeof(buffer), format, args);
- va_end(args);
+ __fio_init_net_cmd(&cmd, opcode, size, tag);
+ cmd.flags = __cpu_to_le32(flags);
+ fio_net_cmd_crc_pdu(&cmd, buf);
- return fio_server_text_output(buffer, len);
+ return fio_sendv_data(sk, iov, 2);
}
-static int fio_server(void)
+int fio_send_iolog(struct thread_data *td, struct io_log *log, const char *name)
{
- struct sockaddr_in saddr_in;
- struct sockaddr addr;
- unsigned int len;
- int sk, opt, ret;
+ struct cmd_iolog_pdu pdu;
+ z_stream stream;
+ void *out_pdu;
+ int i, ret = 0;
+
+ pdu.thread_number = cpu_to_le32(td->thread_number);
+ pdu.nr_samples = __cpu_to_le32(log->nr_samples);
+ pdu.log_type = cpu_to_le32(log->log_type);
+ strcpy((char *) pdu.name, name);
+
+ for (i = 0; i < log->nr_samples; i++) {
+ struct io_sample *s = &log->log[i];
+
+ s->time = cpu_to_le64(s->time);
+ s->val = cpu_to_le64(s->val);
+ s->ddir = cpu_to_le32(s->ddir);
+ s->bs = cpu_to_le32(s->bs);
+ }
- dprint(FD_NET, "starting server\n");
+ /*
+ * Dirty - since the log is potentially huge, compress it into
+ * FIO_SERVER_MAX_FRAGMENT_PDU chunks and let the receiving
+ * side defragment it.
+ */
+ out_pdu = malloc(FIO_SERVER_MAX_FRAGMENT_PDU);
+
+ stream.zalloc = Z_NULL;
+ stream.zfree = Z_NULL;
+ stream.opaque = Z_NULL;
+
+ if (deflateInit(&stream, Z_DEFAULT_COMPRESSION) != Z_OK) {
+ ret = 1;
+ goto err;
+ }
+
+ /*
+ * Send header first, it's not compressed.
+ */
+ ret = fio_send_cmd_ext_pdu(server_fd, FIO_NET_CMD_IOLOG, &pdu,
+ sizeof(pdu), 0, FIO_NET_CMD_F_MORE);
+ if (ret)
+ goto err_zlib;
+
+ stream.next_in = (void *) log->log;
+ stream.avail_in = log->nr_samples * sizeof(struct io_sample);
+
+ do {
+ unsigned int this_len, flags = 0;
+ int ret;
+
+ stream.avail_out = FIO_SERVER_MAX_FRAGMENT_PDU;
+ stream.next_out = out_pdu;
+ ret = deflate(&stream, Z_FINISH);
+ /* may be Z_OK, or Z_STREAM_END */
+ if (ret < 0)
+ goto err_zlib;
+
+ this_len = FIO_SERVER_MAX_FRAGMENT_PDU - stream.avail_out;
+
+ if (stream.avail_in)
+ flags = FIO_NET_CMD_F_MORE;
+
+ ret = fio_send_cmd_ext_pdu(server_fd, FIO_NET_CMD_IOLOG,
+ out_pdu, this_len, 0, flags);
+ if (ret)
+ goto err_zlib;
+ } while (stream.avail_in);
+
+err_zlib:
+ deflateEnd(&stream);
+err:
+ free(out_pdu);
+ return ret;
+}
+
+void fio_server_send_add_job(struct thread_data *td)
+{
+ struct cmd_add_job_pdu pdu;
+
+ memset(&pdu, 0, sizeof(pdu));
+ pdu.thread_number = cpu_to_le32(td->thread_number);
+ pdu.groupid = cpu_to_le32(td->groupid);
+ convert_thread_options_to_net(&pdu.top, &td->o);
+
+ fio_net_send_cmd(server_fd, FIO_NET_CMD_ADD_JOB, &pdu, sizeof(pdu), NULL, NULL);
+}
+
+void fio_server_send_start(struct thread_data *td)
+{
+ assert(server_fd != -1);
+
+ fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_SERVER_START, 0, NULL);
+}
+
+static int fio_init_server_ip(void)
+{
+ struct sockaddr *addr;
+ fio_socklen_t socklen;
+ int sk, opt;
+
+ if (use_ipv6)
+ sk = socket(AF_INET6, SOCK_STREAM, 0);
+ else
+ sk = socket(AF_INET, SOCK_STREAM, 0);
- sk = socket(AF_INET, SOCK_STREAM, 0);
if (sk < 0) {
log_err("fio: socket: %s\n", strerror(errno));
return -1;
opt = 1;
if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) < 0) {
log_err("fio: setsockopt: %s\n", strerror(errno));
+ close(sk);
return -1;
}
#ifdef SO_REUSEPORT
if (setsockopt(sk, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) {
log_err("fio: setsockopt: %s\n", strerror(errno));
+ close(sk);
return -1;
}
#endif
- saddr_in.sin_family = AF_INET;
- saddr_in.sin_addr.s_addr = htonl(INADDR_ANY);
- saddr_in.sin_port = htons(fio_net_port);
+ if (use_ipv6) {
+ addr = (struct sockaddr *) &saddr_in6;
+ socklen = sizeof(saddr_in6);
+ saddr_in6.sin6_family = AF_INET6;
+ } else {
+ addr = (struct sockaddr *) &saddr_in;
+ socklen = sizeof(saddr_in);
+ saddr_in.sin_family = AF_INET;
+ }
- if (bind(sk, (struct sockaddr *) &saddr_in, sizeof(saddr_in)) < 0) {
+ if (bind(sk, addr, socklen) < 0) {
log_err("fio: bind: %s\n", strerror(errno));
+ close(sk);
return -1;
}
- if (listen(sk, 1) < 0) {
- log_err("fio: listen: %s\n", strerror(errno));
+ return sk;
+}
+
+static int fio_init_server_sock(void)
+{
+ struct sockaddr_un addr;
+ fio_socklen_t len;
+ mode_t mode;
+ int sk;
+
+ sk = socket(AF_UNIX, SOCK_STREAM, 0);
+ if (sk < 0) {
+ log_err("fio: socket: %s\n", strerror(errno));
return -1;
}
- len = sizeof(addr);
- if (getsockname(sk, &addr, &len) < 0) {
- log_err("fio: getsockname: %s\n", strerror(errno));
+ mode = umask(000);
+
+ memset(&addr, 0, sizeof(addr));
+ addr.sun_family = AF_UNIX;
+ strcpy(addr.sun_path, bind_sock);
+ unlink(bind_sock);
+
+ len = sizeof(addr.sun_family) + strlen(bind_sock) + 1;
+
+ if (bind(sk, (struct sockaddr *) &addr, len) < 0) {
+ log_err("fio: bind: %s\n", strerror(errno));
+ close(sk);
return -1;
}
+ umask(mode);
+ return sk;
+}
+
+static int fio_init_server_connection(void)
+{
+ char bind_str[128];
+ int sk;
+
+ dprint(FD_NET, "starting server\n");
+
+ if (!bind_sock)
+ sk = fio_init_server_ip();
+ else
+ sk = fio_init_server_sock();
+
+ if (sk < 0)
+ return sk;
+
+ if (!bind_sock) {
+ char *p, port[16];
+ const void *src;
+ int af;
+
+ if (use_ipv6) {
+ af = AF_INET6;
+ src = &saddr_in6.sin6_addr;
+ } else {
+ af = AF_INET;
+ src = &saddr_in.sin_addr;
+ }
+
+ p = (char *) inet_ntop(af, src, bind_str, sizeof(bind_str));
+
+ sprintf(port, ",%u", fio_net_port);
+ if (p)
+ strcat(p, port);
+ else
+ strcpy(bind_str, port);
+ } else
+ strcpy(bind_str, bind_sock);
+
+ log_info("fio: server listening on %s\n", bind_str);
+
+ if (listen(sk, 0) < 0) {
+ log_err("fio: listen: %s\n", strerror(errno));
+ return -1;
+ }
+
+ return sk;
+}
+
+int fio_server_parse_host(const char *host, int *ipv6, struct in_addr *inp,
+ struct in6_addr *inp6)
+
+{
+ int ret = 0;
+
+ if (*ipv6)
+ ret = inet_pton(AF_INET6, host, inp6);
+ else
+ ret = inet_pton(AF_INET, host, inp);
+
+ if (ret != 1) {
+ struct hostent *hent;
+
+ hent = gethostbyname(host);
+ if (!hent) {
+ log_err("fio: failed to resolve <%s>\n", host);
+ return 0;
+ }
+
+ if (*ipv6) {
+ if (hent->h_addrtype != AF_INET6) {
+ log_info("fio: falling back to IPv4\n");
+ *ipv6 = 0;
+ } else
+ memcpy(inp6, hent->h_addr_list[0], 16);
+ }
+ if (!*ipv6) {
+ if (hent->h_addrtype != AF_INET) {
+ log_err("fio: lookup type mismatch\n");
+ return 0;
+ }
+ memcpy(inp, hent->h_addr_list[0], 4);
+ }
+ ret = 1;
+ }
+
+ return !(ret == 1);
+}
+
+/*
+ * Parse a host/ip/port string. Reads from 'str'.
+ *
+ * Outputs:
+ *
+ * For IPv4:
+ * *ptr is the host, *port is the port, inp is the destination.
+ * For IPv6:
+ * *ptr is the host, *port is the port, inp6 is the dest, and *ipv6 is 1.
+ * For local domain sockets:
+ * *ptr is the filename, *is_sock is 1.
+ */
+int fio_server_parse_string(const char *str, char **ptr, int *is_sock,
+ int *port, struct in_addr *inp,
+ struct in6_addr *inp6, int *ipv6)
+{
+ const char *host = str;
+ char *portp;
+ int lport = 0;
+
+ *ptr = NULL;
+ *is_sock = 0;
+ *port = fio_net_port;
+ *ipv6 = 0;
+
+ if (!strncmp(str, "sock:", 5)) {
+ *ptr = strdup(str + 5);
+ *is_sock = 1;
+
+ return 0;
+ }
+
+ /*
+ * Is it ip:<ip or host>:port
+ */
+ if (!strncmp(host, "ip:", 3))
+ host += 3;
+ else if (!strncmp(host, "ip4:", 4))
+ host += 4;
+ else if (!strncmp(host, "ip6:", 4)) {
+ host += 4;
+ *ipv6 = 1;
+ } else if (host[0] == ':') {
+ /* String is :port */
+ host++;
+ lport = atoi(host);
+ if (!lport || lport > 65535) {
+ log_err("fio: bad server port %u\n", port);
+ return 1;
+ }
+ /* no hostname given, we are done */
+ *port = lport;
+ return 0;
+ }
+
+ /*
+ * If no port seen yet, check if there's a last ':' at the end
+ */
+ if (!lport) {
+ portp = strchr(host, ',');
+ if (portp) {
+ *portp = '\0';
+ portp++;
+ lport = atoi(portp);
+ if (!lport || lport > 65535) {
+ log_err("fio: bad server port %u\n", port);
+ return 1;
+ }
+ }
+ }
+
+ if (lport)
+ *port = lport;
+
+ if (!strlen(host))
+ return 0;
+
+ *ptr = strdup(host);
+
+ if (fio_server_parse_host(*ptr, ipv6, inp, inp6)) {
+ free(*ptr);
+ *ptr = NULL;
+ return 1;
+ }
+
+ if (*port == 0)
+ *port = fio_net_port;
+
+ return 0;
+}
+
+/*
+ * Server arg should be one of:
+ *
+ * sock:/path/to/socket
+ * ip:1.2.3.4
+ * 1.2.3.4
+ *
+ * Where sock uses unix domain sockets, and ip binds the server to
+ * a specific interface. If no arguments are given to the server, it
+ * uses IP and binds to 0.0.0.0.
+ *
+ */
+static int fio_handle_server_arg(void)
+{
+ int port = fio_net_port;
+ int is_sock, ret = 0;
+
+ saddr_in.sin_addr.s_addr = htonl(INADDR_ANY);
+
+ if (!fio_server_arg)
+ goto out;
+
+ ret = fio_server_parse_string(fio_server_arg, &bind_sock, &is_sock,
+ &port, &saddr_in.sin_addr,
+ &saddr_in6.sin6_addr, &use_ipv6);
+
+ if (!is_sock && bind_sock) {
+ free(bind_sock);
+ bind_sock = NULL;
+ }
+
+out:
+ fio_net_port = port;
+ saddr_in.sin_port = htons(port);
+ saddr_in6.sin6_port = htons(port);
+ return ret;
+}
+
+static int fio_server(void)
+{
+ int sk, ret;
+
+ dprint(FD_NET, "starting server\n");
+
+ if (fio_handle_server_arg())
+ return -1;
+
+ sk = fio_init_server_connection();
+ if (sk < 0)
+ return -1;
+
ret = accept_loop(sk);
+
close(sk);
+
+ if (fio_server_arg) {
+ free(fio_server_arg);
+ fio_server_arg = NULL;
+ }
+ if (bind_sock)
+ free(bind_sock);
+
return ret;
}
-static void sig_int(int sig)
+void fio_server_got_signal(int signal)
{
- fio_terminate_threads(TERMINATE_ALL);
- exit_backend = 1;
+ if (signal == SIGPIPE)
+ server_fd = -1;
+ else {
+ log_info("\nfio: terminating on signal %d\n", signal);
+ exit_backend = 1;
+ }
+}
+
+static int check_existing_pidfile(const char *pidfile)
+{
+ struct stat sb;
+ char buf[16];
+ pid_t pid;
+ FILE *f;
+
+ if (stat(pidfile, &sb))
+ return 0;
+
+ f = fopen(pidfile, "r");
+ if (!f)
+ return 0;
+
+ if (fread(buf, sb.st_size, 1, f) <= 0) {
+ fclose(f);
+ return 1;
+ }
+ fclose(f);
+
+ pid = atoi(buf);
+ if (kill(pid, SIGCONT) < 0)
+ return errno != ESRCH;
+
+ return 1;
}
-static void server_signal_handler(void)
+static int write_pid(pid_t pid, const char *pidfile)
{
- struct sigaction act;
+ FILE *fpid;
- memset(&act, 0, sizeof(act));
- act.sa_handler = sig_int;
- act.sa_flags = SA_RESTART;
- sigaction(SIGINT, &act, NULL);
+ fpid = fopen(pidfile, "w");
+ if (!fpid) {
+ log_err("fio: failed opening pid file %s\n", pidfile);
+ return 1;
+ }
- memset(&act, 0, sizeof(act));
- act.sa_handler = sig_int;
- act.sa_flags = SA_RESTART;
- sigaction(SIGTERM, &act, NULL);
+ fprintf(fpid, "%u\n", (unsigned int) pid);
+ fclose(fpid);
+ return 0;
}
-int fio_start_server(int daemonize)
+/*
+ * If pidfile is specified, background us.
+ */
+int fio_start_server(char *pidfile)
{
pid_t pid;
+ int ret;
- server_signal_handler();
+#if defined(WIN32)
+ WSADATA wsd;
+ WSAStartup(MAKEWORD(2, 2), &wsd);
+#endif
- if (!daemonize)
+ if (!pidfile)
return fio_server();
- openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER);
+ if (check_existing_pidfile(pidfile)) {
+ log_err("fio: pidfile %s exists and server appears alive\n",
+ pidfile);
+ return -1;
+ }
+
pid = fork();
if (pid < 0) {
- syslog(LOG_ERR, "failed server fork");
+ log_err("fio: failed server fork: %s", strerror(errno));
+ free(pidfile);
return -1;
- } else if (pid)
- exit(0);
+ } else if (pid) {
+ int ret = write_pid(pid, pidfile);
+
+ exit(ret);
+ }
setsid();
+ openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER);
+ log_syslog = 1;
close(STDIN_FILENO);
close(STDOUT_FILENO);
close(STDERR_FILENO);
f_out = NULL;
f_err = NULL;
- log_syslog = 1;
- return fio_server();
+
+ ret = fio_server();
+
+ closelog();
+ unlink(pidfile);
+ free(pidfile);
+ return ret;
+}
+
+void fio_server_set_arg(const char *arg)
+{
+ fio_server_arg = strdup(arg);
}
projects / fio.git / blobdiff