Fabien COELHO <coe...@cri.ensmp.fr> writes:
> The patch was not applying cleanly anymore for me, so here is a rebase of
> your latest version.
The cfbot doesn't like that patch, probably because of the Windows newlines.
Here's a version with regular newlines, and some cosmetic cleanup in the
configure infrastructure.
I haven't looked at the pgbench changes proper yet, but I did quickly
test building on FreeBSD 11, which has ppoll, and it falls over:
pgbench.c:6080:69: error: use of undeclared identifier 'POLLRDHUP'
...== -1 || (PQsocket(con) >= 0 && !(sa[idx].revents & POLL_UNWANTED)))
^
pgbench.c:6059:24: note: expanded from macro 'POLL_UNWANTED'
#define POLL_UNWANTED (POLLRDHUP|POLLERR|POLLHUP|POLLNVAL)
^
pgbench.c:6085:42: error: use of undeclared identifier 'POLLRDHUP'
errno, sa[idx].fd, (sa[idx].revents & POLL_UNWANTED));
^
pgbench.c:6059:24: note: expanded from macro 'POLL_UNWANTED'
#define POLL_UNWANTED (POLLRDHUP|POLLERR|POLLHUP|POLLNVAL)
^
pgbench.c:6107:19: error: use of undeclared identifier 'POLLRDHUP'
sa[idx].events = POLL_EVENTS;
^
pgbench.c:6057:22: note: expanded from macro 'POLL_EVENTS'
#define POLL_EVENTS (POLLRDHUP|POLLIN|POLLPRI)
^
3 errors generated.
make[3]: *** [<builtin>: pgbench.o] Error 1
I'm strongly tempted to just remove the POLL_UNWANTED business
altogether, as it seems both pointless and unportable on its face.
Almost by definition, we can't know what "other" bits a given
implementation might set.
I'm not entirely following the point of including POLLRDHUP in
POLL_EVENTS, either. What's wrong with the traditional solution
of detecting EOF?
regards, tom lane
diff --git a/configure b/configure
index 9b30402..21ecd29 100755
*** a/configure
--- b/configure
*************** fi
*** 15093,15099 ****
LIBS_including_readline="$LIBS"
LIBS=`echo "$LIBS" | sed -e 's/-ledit//g' -e 's/-lreadline//g'`
! for ac_func in cbrt clock_gettime fdatasync getifaddrs getpeerucred getrlimit mbstowcs_l memmove poll posix_fallocate pstat pthread_is_threaded_np readlink setproctitle setproctitle_fast setsid shm_open symlink sync_file_range utime utimes wcstombs_l
do :
as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
--- 15093,15099 ----
LIBS_including_readline="$LIBS"
LIBS=`echo "$LIBS" | sed -e 's/-ledit//g' -e 's/-lreadline//g'`
! for ac_func in cbrt clock_gettime fdatasync getifaddrs getpeerucred getrlimit mbstowcs_l memmove poll posix_fallocate ppoll pstat pthread_is_threaded_np readlink setproctitle setproctitle_fast setsid shm_open symlink sync_file_range utime utimes wcstombs_l
do :
as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
diff --git a/configure.in b/configure.in
index 2e60a89..8fe6894 100644
*** a/configure.in
--- b/configure.in
*************** PGAC_FUNC_WCSTOMBS_L
*** 1562,1568 ****
LIBS_including_readline="$LIBS"
LIBS=`echo "$LIBS" | sed -e 's/-ledit//g' -e 's/-lreadline//g'`
! AC_CHECK_FUNCS([cbrt clock_gettime fdatasync getifaddrs getpeerucred getrlimit mbstowcs_l memmove poll posix_fallocate pstat pthread_is_threaded_np readlink setproctitle setproctitle_fast setsid shm_open symlink sync_file_range utime utimes wcstombs_l])
AC_REPLACE_FUNCS(fseeko)
case $host_os in
--- 1562,1568 ----
LIBS_including_readline="$LIBS"
LIBS=`echo "$LIBS" | sed -e 's/-ledit//g' -e 's/-lreadline//g'`
! AC_CHECK_FUNCS([cbrt clock_gettime fdatasync getifaddrs getpeerucred getrlimit mbstowcs_l memmove poll posix_fallocate ppoll pstat pthread_is_threaded_np readlink setproctitle setproctitle_fast setsid shm_open symlink sync_file_range utime utimes wcstombs_l])
AC_REPLACE_FUNCS(fseeko)
case $host_os in
diff --git a/src/bin/pgbench/pgbench.c b/src/bin/pgbench/pgbench.c
index 41b756c..3d378db 100644
*** a/src/bin/pgbench/pgbench.c
--- b/src/bin/pgbench/pgbench.c
***************
*** 45,53 ****
--- 45,62 ----
#include <signal.h>
#include <time.h>
#include <sys/time.h>
+ #ifndef PGBENCH_USE_SELECT /* force use of select(2)? */
+ #ifdef HAVE_PPOLL
+ #define POLL_USING_PPOLL
+ #include <poll.h>
+ #endif
+ #endif
+ #ifndef POLL_USING_PPOLL
+ #define POLL_USING_SELECT
#ifdef HAVE_SYS_SELECT_H
#include <sys/select.h>
#endif
+ #endif
#ifdef HAVE_SYS_RESOURCE_H
#include <sys/resource.h> /* for getrlimit */
*************** static int pthread_join(pthread_t th, vo
*** 92,104 ****
/********************************************************************
* some configurable parameters */
!
! /* max number of clients allowed */
#ifdef FD_SETSIZE
! #define MAXCLIENTS (FD_SETSIZE - 10)
#else
! #define MAXCLIENTS 1024
#endif
#define DEFAULT_INIT_STEPS "dtgvp" /* default -I setting */
--- 101,119 ----
/********************************************************************
* some configurable parameters */
! #ifdef POLL_USING_SELECT /* using select(2) */
! #define SOCKET_WAIT_METHOD "select"
! typedef fd_set socket_set;
#ifdef FD_SETSIZE
! #define MAXCLIENTS (FD_SETSIZE - 10) /* system limited max number of clients allowed */
#else
! #define MAXCLIENTS 1024 /* max number of clients allowed */
#endif
+ #else /* using ppoll(2) */
+ #define SOCKET_WAIT_METHOD "ppoll"
+ typedef struct pollfd socket_set;
+ #define MAXCLIENTS -1 /* unlimited number of clients */
+ #endif /* POLL_USING_SELECT */
#define DEFAULT_INIT_STEPS "dtgvp" /* default -I setting */
*************** static void addScript(ParsedScript scrip
*** 525,530 ****
--- 540,552 ----
static void *threadRun(void *arg);
static void setalarm(int seconds);
static void finishCon(CState *st);
+ static socket_set *alloc_socket_set(int count);
+ static bool error_on_socket(socket_set *sa, int idx, PGconn *con);
+ static void free_socket_set(socket_set *sa);
+ static bool ignore_socket(socket_set *sa, int idx, PGconn *con);
+ static void clear_socket_set(socket_set *sa, int count);
+ static void set_socket(socket_set *sa, int fd, int idx);
+ static int wait_on_socket_set(socket_set *sa, int nstate, int maxsock, int64 usec);
/* callback functions for our flex lexer */
*************** doConnect(void)
*** 1143,1148 ****
--- 1165,1171 ----
!have_password)
{
PQfinish(conn);
+ conn = NULL;
simple_prompt("Password: ", password, sizeof(password), false);
have_password = true;
new_pass = true;
*************** main(int argc, char **argv)
*** 4903,4909 ****
case 'c':
benchmarking_option_set = true;
nclients = atoi(optarg);
! if (nclients <= 0 || nclients > MAXCLIENTS)
{
fprintf(stderr, "invalid number of clients: \"%s\"\n",
optarg);
--- 4926,4932 ----
case 'c':
benchmarking_option_set = true;
nclients = atoi(optarg);
! if (nclients <= 0 || (MAXCLIENTS != -1 && nclients > MAXCLIENTS))
{
fprintf(stderr, "invalid number of clients: \"%s\"\n",
optarg);
*************** threadRun(void *arg)
*** 5614,5619 ****
--- 5637,5643 ----
int64 next_report = last_report + (int64) progress * 1000000;
StatsData last,
aggs;
+ socket_set *sockets = alloc_socket_set(nstate);
/*
* Initialize throttling rate target for all of the thread's clients. It
*************** threadRun(void *arg)
*** 5657,5662 ****
--- 5681,5687 ----
{
if ((state[i].con = doConnect()) == NULL)
goto done;
+ set_socket(sockets, PQsocket(state[i].con), i);
}
}
*************** threadRun(void *arg)
*** 5673,5685 ****
/* loop till all clients have terminated */
while (remains > 0)
{
- fd_set input_mask;
int maxsock; /* max socket number to be waited for */
int64 min_usec;
int64 now_usec = 0; /* set this only if needed */
/* identify which client sockets should be checked for input */
! FD_ZERO(&input_mask);
maxsock = -1;
min_usec = PG_INT64_MAX;
for (i = 0; i < nstate; i++)
--- 5698,5709 ----
/* loop till all clients have terminated */
while (remains > 0)
{
int maxsock; /* max socket number to be waited for */
int64 min_usec;
int64 now_usec = 0; /* set this only if needed */
/* identify which client sockets should be checked for input */
! clear_socket_set(sockets, nstate);
maxsock = -1;
min_usec = PG_INT64_MAX;
for (i = 0; i < nstate; i++)
*************** threadRun(void *arg)
*** 5728,5734 ****
goto done;
}
! FD_SET(sock, &input_mask);
if (maxsock < sock)
maxsock = sock;
}
--- 5752,5758 ----
goto done;
}
! set_socket(sockets, sock, i);
if (maxsock < sock)
maxsock = sock;
}
*************** threadRun(void *arg)
*** 5765,5771 ****
/*
* If no clients are ready to execute actions, sleep until we receive
* data from the server, or a nap-time specified in the script ends,
! * or it's time to print a progress report. Update input_mask to show
* which client(s) received data.
*/
if (min_usec > 0)
--- 5789,5795 ----
/*
* If no clients are ready to execute actions, sleep until we receive
* data from the server, or a nap-time specified in the script ends,
! * or it's time to print a progress report. Update sockets to show
* which client(s) received data.
*/
if (min_usec > 0)
*************** threadRun(void *arg)
*** 5776,5786 ****
{
if (maxsock != -1)
{
! struct timeval timeout;
!
! timeout.tv_sec = min_usec / 1000000;
! timeout.tv_usec = min_usec % 1000000;
! nsocks = select(maxsock + 1, &input_mask, NULL, NULL, &timeout);
}
else /* nothing active, simple sleep */
{
--- 5800,5806 ----
{
if (maxsock != -1)
{
! nsocks = wait_on_socket_set(sockets, nstate, maxsock, min_usec);
}
else /* nothing active, simple sleep */
{
*************** threadRun(void *arg)
*** 5789,5795 ****
}
else /* no explicit delay, select without timeout */
{
! nsocks = select(maxsock + 1, &input_mask, NULL, NULL, NULL);
}
if (nsocks < 0)
--- 5809,5815 ----
}
else /* no explicit delay, select without timeout */
{
! nsocks = wait_on_socket_set(sockets, nstate, maxsock, 0);
}
if (nsocks < 0)
*************** threadRun(void *arg)
*** 5800,5806 ****
continue;
}
/* must be something wrong */
! fprintf(stderr, "select() failed: %s\n", strerror(errno));
goto done;
}
}
--- 5820,5826 ----
continue;
}
/* must be something wrong */
! fprintf(stderr, "%s() failed: %s\n", SOCKET_WAIT_METHOD, strerror(errno));
goto done;
}
}
*************** threadRun(void *arg)
*** 5809,5815 ****
/* min_usec == 0, i.e. something needs to be executed */
/* If we didn't call select(), don't try to read any data */
! FD_ZERO(&input_mask);
}
/* ok, advance the state machine of each connection */
--- 5829,5835 ----
/* min_usec == 0, i.e. something needs to be executed */
/* If we didn't call select(), don't try to read any data */
! clear_socket_set(sockets, nstate);
}
/* ok, advance the state machine of each connection */
*************** threadRun(void *arg)
*** 5820,5835 ****
if (st->state == CSTATE_WAIT_RESULT)
{
/* don't call doCustom unless data is available */
- int sock = PQsocket(st->con);
! if (sock < 0)
! {
! fprintf(stderr, "invalid socket: %s",
! PQerrorMessage(st->con));
goto done;
- }
! if (!FD_ISSET(sock, &input_mask))
continue;
}
else if (st->state == CSTATE_FINISHED ||
--- 5840,5850 ----
if (st->state == CSTATE_WAIT_RESULT)
{
/* don't call doCustom unless data is available */
! if (error_on_socket(sockets, i, st->con))
goto done;
! if (ignore_socket(sockets, i, st->con))
continue;
}
else if (st->state == CSTATE_FINISHED ||
*************** done:
*** 5967,5972 ****
--- 5982,5989 ----
fclose(thread->logfile);
thread->logfile = NULL;
}
+ free_socket_set(sockets);
+ sockets = NULL;
return NULL;
}
*************** finishCon(CState *st)
*** 5980,5985 ****
--- 5997,6131 ----
}
}
+ #ifdef POLL_USING_SELECT /* select(2) based socket polling */
+ static socket_set *
+ alloc_socket_set(int count)
+ {
+ return (socket_set *) pg_malloc0(sizeof(socket_set));
+ }
+
+ static void
+ free_socket_set(socket_set *sa)
+ {
+ pg_free(sa);
+ }
+
+ static bool
+ error_on_socket(socket_set *sa, int idx, PGconn *con)
+ {
+ if (PQsocket(con) >= 0) return false;
+ fprintf(stderr, "invalid socket: %s", PQerrorMessage(con));
+ return true;
+ }
+
+ static bool
+ ignore_socket(socket_set *sa, int idx, PGconn *con)
+ {
+ return !(FD_ISSET(PQsocket(con), sa));
+ }
+
+ static void
+ clear_socket_set(socket_set *sa, int count)
+ {
+ FD_ZERO(sa);
+ }
+
+ static void
+ set_socket(socket_set *sa, int fd, int idx)
+ {
+ FD_SET(fd, sa);
+ }
+
+ static int
+ wait_on_socket_set(socket_set *sa, int nstate, int maxsock, int64 usec)
+ {
+ struct timeval timeout;
+
+ if (usec)
+ {
+ timeout.tv_sec = usec / 1000000;
+ timeout.tv_usec = usec % 1000000;
+ return select(maxsock + 1, sa, NULL, NULL, &timeout);
+ }
+ else
+ {
+ return select(maxsock + 1, sa, NULL, NULL, NULL);
+ }
+ }
+ #else /* ppoll(2) based socket polling */
+ /* ppoll() will block until timeout or one of POLL_EVENTS occurs. */
+ #define POLL_EVENTS (POLLRDHUP|POLLIN|POLLPRI)
+ /* ppoll() events returned that we do not want/expect to see. */
+ #define POLL_UNWANTED (POLLRDHUP|POLLERR|POLLHUP|POLLNVAL)
+
+ static socket_set *
+ alloc_socket_set(int count)
+ {
+ return (socket_set *) pg_malloc0(sizeof(socket_set) * count);
+ }
+
+ static void
+ free_socket_set(socket_set *sa)
+ {
+ pg_free(sa);
+ }
+
+ static bool
+ error_on_socket(socket_set *sa, int idx, PGconn *con)
+ {
+ /*
+ * No error if socket not used or non-error status from PQsocket() and none
+ * of the unwanted ppoll() return events.
+ */
+ if (sa[idx].fd == -1 || (PQsocket(con) >= 0 && !(sa[idx].revents & POLL_UNWANTED)))
+ return false;
+ fprintf(stderr, "invalid socket: %s", PQerrorMessage(con));
+ if (debug)
+ fprintf(stderr, "ppoll() fail - errno: %d, socket: %d, events: %x\n",
+ errno, sa[idx].fd, (sa[idx].revents & POLL_UNWANTED));
+ return true;
+ }
+
+ static bool
+ ignore_socket(socket_set *sa, int idx, PGconn *con)
+ {
+ return (sa[idx].fd != -1 && !sa[idx].revents);
+ }
+
+ static void
+ clear_socket_set(socket_set *sa, int count)
+ {
+ int i = 0;
+ for (i = 0; i < count; i++)
+ set_socket(sa, -1, i);
+ }
+
+ static void
+ set_socket(socket_set *sa, int fd, int idx)
+ {
+ sa[idx].fd = fd;
+ sa[idx].events = POLL_EVENTS;
+ sa[idx].revents = 0;
+ }
+
+ static int
+ wait_on_socket_set(socket_set *sa, int nstate, int maxsock, int64 usec)
+ {
+ struct timespec timeout;
+
+ if (usec)
+ {
+ timeout.tv_sec = usec / 1000000;
+ timeout.tv_nsec = usec % 1000000000;
+ return ppoll(sa, nstate, &timeout, NULL);
+ }
+ else
+ {
+ return ppoll(sa, nstate, NULL, NULL);
+ }
+ }
+ #endif /* PGBENCH_USE_SELECT */
+
/*
* Support for duration option: set timer_exceeded after so many seconds.
*/
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 4094e22..5d40796 100644
*** a/src/include/pg_config.h.in
--- b/src/include/pg_config.h.in
***************
*** 443,448 ****
--- 443,451 ----
/* Define to 1 if the assembler supports PPC's LWARX mutex hint bit. */
#undef HAVE_PPC_LWARX_MUTEX_HINT
+ /* Define to 1 if you have the `ppoll' function. */
+ #undef HAVE_PPOLL
+
/* Define to 1 if you have the `pstat' function. */
#undef HAVE_PSTAT
diff --git a/src/include/pg_config.h.win32 b/src/include/pg_config.h.win32
index 6618b43..182698a 100644
*** a/src/include/pg_config.h.win32
--- b/src/include/pg_config.h.win32
***************
*** 327,332 ****
--- 327,335 ----
/* Define to 1 if you have the `posix_fallocate' function. */
/* #undef HAVE_POSIX_FALLOCATE */
+ /* Define to 1 if you have the `ppoll' function. */
+ /* #undef HAVE_PPOLL */
+
/* Define to 1 if you have the `pstat' function. */
/* #undef HAVE_PSTAT */
diff --git a/src/template/linux b/src/template/linux
index f820bf7..e392908 100644
*** a/src/template/linux
--- b/src/template/linux
*************** if test x"$PREFERRED_SEMAPHORES" = x"" ;
*** 6,11 ****
--- 6,12 ----
fi
# Force _GNU_SOURCE on; plperl is broken with Perl 5.8.0 otherwise
+ # This is also required for ppoll(2), and perhaps other things
CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
# If --enable-profiling is specified, we need -DLINUX_PROFILE
