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-rw-r--r--erts/emulator/drivers/common/inet_drv.c257
1 files changed, 167 insertions, 90 deletions
diff --git a/erts/emulator/drivers/common/inet_drv.c b/erts/emulator/drivers/common/inet_drv.c
index 4c1ab90c01..47eb5df7dd 100644
--- a/erts/emulator/drivers/common/inet_drv.c
+++ b/erts/emulator/drivers/common/inet_drv.c
@@ -38,6 +38,7 @@
#include <ctype.h>
#include <sys/types.h>
#include <errno.h>
+#include <stdint.h>
#define IDENTITY(c) c
#define STRINGIFY_1(b) IDENTITY(#b)
@@ -955,6 +956,7 @@ static size_t my_strnlen(const char *s, size_t maxlen)
#endif
#endif
+typedef struct _tcp_descriptor tcp_descriptor;
#if defined(TCP_CORK)
#define INET_TCP_NOPUSH TCP_CORK
@@ -1010,16 +1012,19 @@ typedef struct _multi_timer_data {
struct _multi_timer_data *prev;
} MultiTimerData;
-static MultiTimerData *add_multi_timer(MultiTimerData **first, ErlDrvPort port,
- ErlDrvTermData caller, unsigned timeout,
- void (*timeout_fun)(ErlDrvData drv_data,
- ErlDrvTermData caller));
-static void fire_multi_timers(MultiTimerData **first, ErlDrvPort port,
+static MultiTimerData *add_multi_timer(tcp_descriptor *desc, ErlDrvPort port,
+ ErlDrvTermData caller, unsigned timeout,
+ void (*timeout_fun)(ErlDrvData drv_data,
+ ErlDrvTermData caller));
+static void fire_multi_timers(tcp_descriptor *desc, ErlDrvPort port,
ErlDrvData data);
-static void remove_multi_timer(MultiTimerData **first, ErlDrvPort port, MultiTimerData *p);
+static void remove_multi_timer(tcp_descriptor *desc, ErlDrvPort port, MultiTimerData *p);
+static void cancel_multi_timer(tcp_descriptor *desc, ErlDrvPort port,
+ void (*timeout_fun)(ErlDrvData drv_data,
+ ErlDrvTermData caller));
static void tcp_inet_multi_timeout(ErlDrvData e, ErlDrvTermData caller);
-static void clean_multi_timers(MultiTimerData **first, ErlDrvPort port);
+static void clean_multi_timers(tcp_descriptor *desc, ErlDrvPort port);
typedef struct {
int id; /* id used to identify reply */
@@ -1278,7 +1283,7 @@ static struct erl_drv_entry sctp_inet_driver_entry =
};
#endif
-typedef struct {
+struct _tcp_descriptor {
inet_descriptor inet; /* common data structure (DON'T MOVE) */
int high; /* high watermark */
int low; /* low watermark */
@@ -1294,7 +1299,8 @@ typedef struct {
int http_state; /* 0 = response|request 1=headers fields */
inet_async_multi_op *multi_first;/* NULL == no multi-accept-queue, op is in ordinary queue */
inet_async_multi_op *multi_last;
- MultiTimerData *mtd; /* Timer structures for multiple accept */
+ MultiTimerData *mtd; /* Timer structures for multiple accept */
+ MultiTimerData *mtd_cache; /* A cache for timer allocations */
#ifdef HAVE_SENDFILE
struct {
ErlDrvSizeT ioq_skip; /* The number of bytes in the queue at the time
@@ -1310,7 +1316,7 @@ typedef struct {
Uint64 length;
} sendfile;
#endif
-} tcp_descriptor;
+};
/* send function */
static int tcp_send(tcp_descriptor* desc, char* ptr, ErlDrvSizeT len);
@@ -9775,6 +9781,7 @@ static ErlDrvData prep_tcp_inet_start(ErlDrvPort port, char* args)
desc->tcp_add_flags = 0;
desc->http_state = 0;
desc->mtd = NULL;
+ desc->mtd_cache = NULL;
desc->multi_first = desc->multi_last = NULL;
DEBUGF(("tcp_inet_start(%ld) }\r\n", (long)port));
return (ErlDrvData) desc;
@@ -9878,15 +9885,14 @@ static void tcp_close_check(tcp_descriptor* desc)
driver_demonitor_process(desc->inet.port, &monitor);
send_async_error(desc->inet.dport, id, caller, am_closed);
}
- clean_multi_timers(&(desc->mtd), desc->inet.port);
}
-
else if (desc->inet.state == INET_STATE_CONNECTING) {
async_error_am(INETP(desc), am_closed);
}
else if (desc->inet.state == INET_STATE_CONNECTED) {
async_error_am_all(INETP(desc), am_closed);
}
+ clean_multi_timers(desc, desc->inet.port);
}
/*
@@ -9929,6 +9935,15 @@ static void tcp_desc_close(tcp_descriptor* desc)
erl_inet_close(INETP(desc));
}
+static void tcp_inet_recv_timeout(ErlDrvData e, ErlDrvTermData dummy)
+{
+ tcp_descriptor* desc = (tcp_descriptor*)e;
+ ASSERT(!desc->inet.active);
+ sock_select(INETP(desc),(FD_READ|FD_CLOSE),0);
+ desc->i_remain = 0;
+ async_error_am(INETP(desc), am_timeout);
+}
+
/* TCP requests from Erlang */
static ErlDrvSSizeT tcp_inet_ctl(ErlDrvData e, unsigned int cmd,
char* buf, ErlDrvSizeT len,
@@ -10099,12 +10114,12 @@ static ErlDrvSSizeT tcp_inet_ctl(ErlDrvData e, unsigned int cmd,
if (time_left <= 0) {
time_left = 1;
}
- omtd = add_multi_timer(&(desc->mtd), desc->inet.port, ocaller,
+ omtd = add_multi_timer(desc, desc->inet.port, ocaller,
time_left, &tcp_inet_multi_timeout);
}
enq_old_multi_op(desc, oid, oreq, ocaller, omtd, &omonitor);
if (timeout != INET_INFINITY) {
- mtd = add_multi_timer(&(desc->mtd), desc->inet.port, caller,
+ mtd = add_multi_timer(desc, desc->inet.port, caller,
timeout, &tcp_inet_multi_timeout);
}
enq_multi_op(desc, tbuf, INET_REQ_ACCEPT, caller, mtd, &monitor);
@@ -10119,7 +10134,7 @@ static ErlDrvSSizeT tcp_inet_ctl(ErlDrvData e, unsigned int cmd,
return ctl_xerror("noproc", rbuf, rsize);
}
if (timeout != INET_INFINITY) {
- mtd = add_multi_timer(&(desc->mtd), desc->inet.port, caller,
+ mtd = add_multi_timer(desc, desc->inet.port, caller,
timeout, &tcp_inet_multi_timeout);
}
enq_multi_op(desc, tbuf, INET_REQ_ACCEPT, caller, mtd, &monitor);
@@ -10216,7 +10231,8 @@ static ErlDrvSSizeT tcp_inet_ctl(ErlDrvData e, unsigned int cmd,
async_error_am(INETP(desc), am_timeout);
else {
if (timeout != INET_INFINITY)
- driver_set_timer(desc->inet.port, timeout);
+ add_multi_timer(desc, INETP(desc)->port, 0,
+ timeout, &tcp_inet_recv_timeout);
if (!INETP(desc)->is_ignored)
sock_select(INETP(desc),(FD_READ|FD_CLOSE),1);
else
@@ -10321,12 +10337,27 @@ static ErlDrvSSizeT tcp_inet_ctl(ErlDrvData e, unsigned int cmd,
}
+static void tcp_inet_send_timeout(ErlDrvData e, ErlDrvTermData dummy)
+{
+ tcp_descriptor* desc = (tcp_descriptor*)e;
+ ASSERT(IS_BUSY(INETP(desc)));
+ ASSERT(desc->busy_on_send);
+ desc->inet.caller = desc->inet.busy_caller;
+ desc->inet.state &= ~INET_F_BUSY;
+ desc->busy_on_send = 0;
+ set_busy_port(desc->inet.port, 0);
+ inet_reply_error_am(INETP(desc), am_timeout);
+ if (desc->send_timeout_close) {
+ tcp_desc_close(desc);
+ }
+}
+
/*
** tcp_inet_timeout:
** called when timer expire:
** TCP socket may be:
**
-** a) receiving -- deselect
+** a) receiving -- send timeout
** b) connecting -- close socket
** c) accepting -- reset listener
**
@@ -10340,26 +10371,9 @@ static void tcp_inet_timeout(ErlDrvData e)
DEBUGF(("tcp_inet_timeout(%ld) {s=%d\r\n",
(long)desc->inet.port, desc->inet.s));
if ((state & INET_F_MULTI_CLIENT)) { /* Multi-client always means multi-timers */
- fire_multi_timers(&(desc->mtd), desc->inet.port, e);
+ fire_multi_timers(desc, desc->inet.port, e);
} else if ((state & INET_STATE_CONNECTED) == INET_STATE_CONNECTED) {
- if (desc->busy_on_send) {
- ASSERT(IS_BUSY(INETP(desc)));
- desc->inet.caller = desc->inet.busy_caller;
- desc->inet.state &= ~INET_F_BUSY;
- desc->busy_on_send = 0;
- set_busy_port(desc->inet.port, 0);
- inet_reply_error_am(INETP(desc), am_timeout);
- if (desc->send_timeout_close) {
- tcp_desc_close(desc);
- }
- }
- else {
- /* assume recv timeout */
- ASSERT(!desc->inet.active);
- sock_select(INETP(desc),(FD_READ|FD_CLOSE),0);
- desc->i_remain = 0;
- async_error_am(INETP(desc), am_timeout);
- }
+ fire_multi_timers(desc, desc->inet.port, e);
}
else if ((state & INET_STATE_CONNECTING) == INET_STATE_CONNECTING) {
/* assume connect timeout */
@@ -10489,7 +10503,7 @@ static void tcp_inet_process_exit(ErlDrvData e, ErlDrvMonitor *monitorp)
return;
}
if (timeout != NULL) {
- remove_multi_timer(&(desc->mtd), desc->inet.port, timeout);
+ remove_multi_timer(desc, desc->inet.port, timeout);
}
if (desc->multi_first == NULL) {
sock_select(INETP(desc),FD_ACCEPT,0);
@@ -10528,7 +10542,7 @@ static int tcp_recv_closed(tcp_descriptor* desc)
desc->inet.caller = desc->inet.busy_caller;
tcp_clear_output(desc);
if (desc->busy_on_send) {
- driver_cancel_timer(desc->inet.port);
+ cancel_multi_timer(desc, INETP(desc)->port, &tcp_inet_send_timeout);
desc->busy_on_send = 0;
DEBUGF(("tcp_recv_closed(%ld): busy on send\r\n", port));
}
@@ -10551,9 +10565,10 @@ static int tcp_recv_closed(tcp_descriptor* desc)
*/
desc->tcp_add_flags |= TCP_ADDF_DELAYED_CLOSE_SEND;
}
+
if (!desc->inet.active) {
- /* We must cancel any timer here ! */
- driver_cancel_timer(desc->inet.port);
+ /* We must cancel any timer here ! */
+ clean_multi_timers(desc, INETP(desc)->port);
/* passive mode do not terminate port ! */
tcp_clear_input(desc);
if (desc->inet.exitf) {
@@ -10588,7 +10603,7 @@ static int tcp_recv_error(tcp_descriptor* desc, int err)
desc->inet.caller = desc->inet.busy_caller;
tcp_clear_output(desc);
if (desc->busy_on_send) {
- driver_cancel_timer(desc->inet.port);
+ cancel_multi_timer(desc, INETP(desc)->port, &tcp_inet_send_timeout);
desc->busy_on_send = 0;
}
desc->inet.state &= ~INET_F_BUSY;
@@ -10602,7 +10617,7 @@ static int tcp_recv_error(tcp_descriptor* desc, int err)
#endif
if (!desc->inet.active) {
/* We must cancel any timer here ! */
- driver_cancel_timer(desc->inet.port);
+ clean_multi_timers(desc, INETP(desc)->port);
tcp_clear_input(desc);
if (desc->inet.exitf) {
tcp_desc_close(desc);
@@ -10707,13 +10722,13 @@ static int tcp_deliver(tcp_descriptor* desc, int len)
if (len == 0) {
/* empty buffer or waiting for more input */
if ((desc->i_buf == NULL) || (desc->i_remain > 0))
- return count;
+ return 0;
if ((n = tcp_remain(desc, &len)) != 0) {
if (n < 0) /* packet error */
return n;
if (len > 0) /* more data pending */
desc->i_remain = len;
- return count;
+ return 0;
}
}
@@ -10765,9 +10780,7 @@ static int tcp_deliver(tcp_descriptor* desc, int len)
len = 0;
if (!desc->inet.active) {
- if (!desc->busy_on_send) {
- driver_cancel_timer(desc->inet.port);
- }
+ cancel_multi_timer(desc, INETP(desc)->port, &tcp_inet_recv_timeout);
sock_select(INETP(desc),(FD_READ|FD_CLOSE),0);
if (desc->i_buf != NULL)
tcp_restart_input(desc);
@@ -10793,7 +10806,7 @@ static int tcp_recv(tcp_descriptor* desc, int request_len)
int len;
int nread;
- if (desc->i_buf == NULL) { /* allocte a read buffer */
+ if (desc->i_buf == NULL) { /* allocate a read buffer */
int sz = (request_len > 0) ? request_len : desc->inet.bufsz;
if ((desc->i_buf = alloc_buffer(sz)) == NULL)
@@ -10866,10 +10879,11 @@ static int tcp_recv(tcp_descriptor* desc, int request_len)
return tcp_deliver(desc, desc->i_ptr - desc->i_ptr_start);
}
else {
- if ((nread = tcp_remain(desc, &len)) < 0)
+ nread = tcp_remain(desc, &len);
+ if (nread < 0)
return tcp_recv_error(desc, EMSGSIZE);
else if (nread == 0)
- return tcp_deliver(desc, len);
+ return tcp_deliver(desc, len);
else if (len > 0)
desc->i_remain = len; /* set remain */
}
@@ -11188,7 +11202,7 @@ static int tcp_inet_input(tcp_descriptor* desc, HANDLE event)
}
if (timeout != NULL) {
- remove_multi_timer(&(desc->mtd), desc->inet.port, timeout);
+ remove_multi_timer(desc, desc->inet.port, timeout);
}
driver_demonitor_process(desc->inet.port, &monitor);
@@ -11247,8 +11261,8 @@ static int tcp_send_or_shutdown_error(tcp_descriptor* desc, int err)
if (IS_BUSY(INETP(desc))) {
desc->inet.caller = desc->inet.busy_caller;
if (desc->busy_on_send) {
- driver_cancel_timer(desc->inet.port);
- desc->busy_on_send = 0;
+ cancel_multi_timer(desc, INETP(desc)->port, &tcp_inet_send_timeout);
+ desc->busy_on_send = 0;
}
desc->inet.state &= ~INET_F_BUSY;
set_busy_port(desc->inet.port, 0);
@@ -11353,6 +11367,12 @@ static int tcp_shutdown_error(tcp_descriptor* desc, int err)
return tcp_send_or_shutdown_error(desc, err);
}
+static void tcp_inet_delay_send(ErlDrvData data, ErlDrvTermData dummy)
+{
+ tcp_descriptor *desc = (tcp_descriptor*)data;
+ (void)tcp_inet_output(desc, INETP(desc)->s);
+}
+
/*
** Send non-blocking vector data
*/
@@ -11405,7 +11425,9 @@ static int tcp_sendv(tcp_descriptor* desc, ErlIOVec* ev)
set_busy_port(desc->inet.port, 1);
if (desc->send_timeout != INET_INFINITY) {
desc->busy_on_send = 1;
- driver_set_timer(desc->inet.port, desc->send_timeout);
+ add_multi_timer(desc, INETP(desc)->port,
+ 0 /* arg */, desc->send_timeout /* timeout */,
+ &tcp_inet_send_timeout);
}
return 1;
}
@@ -11420,7 +11442,10 @@ static int tcp_sendv(tcp_descriptor* desc, ErlIOVec* ev)
INETP(desc)->is_ignored |= INET_IGNORE_WRITE;
n = 0;
} else if (desc->tcp_add_flags & TCP_ADDF_DELAY_SEND) {
- n = 0;
+ driver_enqv(ix, ev, 0);
+ add_multi_timer(desc, INETP(desc)->port, 0,
+ 0, &tcp_inet_delay_send);
+ return 0;
} else if (IS_SOCKET_ERROR(sock_sendv(desc->inet.s, ev->iov,
vsize, &n, 0))) {
if ((sock_errno() != ERRNO_BLOCK) && (sock_errno() != EINTR)) {
@@ -11503,7 +11528,9 @@ static int tcp_send(tcp_descriptor* desc, char* ptr, ErlDrvSizeT len)
set_busy_port(desc->inet.port, 1);
if (desc->send_timeout != INET_INFINITY) {
desc->busy_on_send = 1;
- driver_set_timer(desc->inet.port, desc->send_timeout);
+ add_multi_timer(desc, INETP(desc)->port,
+ 0 /* arg */, desc->send_timeout /* timeout */,
+ &tcp_inet_send_timeout);
}
return 1;
}
@@ -11607,7 +11634,8 @@ static int tcp_sendfile_completed(tcp_descriptor* desc) {
/* if we have a timer then cancel and send ok to client */
if (desc->busy_on_send) {
- driver_cancel_timer(desc->inet.port);
+ cancel_multi_timer(desc, INETP(desc)->port,
+ &tcp_inet_send_timeout);
desc->busy_on_send = 0;
}
@@ -11914,6 +11942,12 @@ static int tcp_inet_output(tcp_descriptor* desc, HANDLE event)
#ifdef __WIN32__
desc->inet.send_would_block = 1;
#endif
+ /* If DELAY_SEND is set ready_output may have
+ been called without doing select so we do
+ a select in order to get into the correct
+ state */
+ if (desc->tcp_add_flags & TCP_ADDF_DELAY_SEND)
+ sock_select(INETP(desc), FD_WRITE, 1);
goto done;
} else if (n == 0) { /* Workaround for redhat/CentOS 6.3 returning
0 when sending packets with
@@ -11939,7 +11973,7 @@ static int tcp_inet_output(tcp_descriptor* desc, HANDLE event)
set_busy_port(desc->inet.port, 0);
/* if we have a timer then cancel and send ok to client */
if (desc->busy_on_send) {
- driver_cancel_timer(desc->inet.port);
+ cancel_multi_timer(desc, INETP(desc)->port, &tcp_inet_send_timeout);
desc->busy_on_send = 0;
}
inet_reply_ok(INETP(desc));
@@ -12751,7 +12785,7 @@ static int packet_inet_input(udp_descriptor* udesc, HANDLE event)
udesc->i_buf = NULL;
if (!desc->active) {
async_error(desc, err);
- driver_cancel_timer(desc->port);
+ driver_cancel_timer(desc->port);
sock_select(desc,FD_READ,0);
}
else {
@@ -12840,7 +12874,7 @@ static int packet_inet_input(udp_descriptor* udesc, HANDLE event)
return count;
count++;
if (!desc->active) {
- driver_cancel_timer(desc->port); /* possibly cancel */
+ driver_cancel_timer(desc->port);
sock_select(desc,FD_READ,0);
return count; /* passive mode (read one packet only) */
}
@@ -12919,55 +12953,69 @@ make_noninheritable_handle(SOCKET s)
* Multi-timers
*/
-static void fire_multi_timers(MultiTimerData **first, ErlDrvPort port,
+static void fire_multi_timers(tcp_descriptor *desc, ErlDrvPort port,
ErlDrvData data)
{
ErlDrvTime next_timeout;
- if (!*first) {
+ MultiTimerData *curr = desc->mtd;
+ if (!curr) {
ASSERT(0);
return;
}
#ifdef DEBUG
{
ErlDrvTime chk = erl_drv_monotonic_time(ERL_DRV_MSEC);
- ASSERT(chk >= (*first)->when);
+ ASSERT(chk >= curr->when);
}
#endif
do {
- MultiTimerData *save = *first;
- *first = save->next;
+ MultiTimerData *save = curr;
+
(*(save->timeout_function))(data,save->caller);
- FREE(save);
- if (*first == NULL) {
+
+ curr = curr->next;
+
+ if (desc->mtd_cache == NULL)
+ desc->mtd_cache = save;
+ else
+ FREE(save);
+
+ if (curr == NULL) {
+ desc->mtd = NULL;
return;
}
- (*first)->prev = NULL;
- next_timeout = (*first)->when - erl_drv_monotonic_time(ERL_DRV_MSEC);
+ curr->prev = NULL;
+ next_timeout = curr->when - erl_drv_monotonic_time(ERL_DRV_MSEC);
} while (next_timeout <= 0);
+ desc->mtd = curr;
driver_set_timer(port, (unsigned long) next_timeout);
}
-static void clean_multi_timers(MultiTimerData **first, ErlDrvPort port)
+static void clean_multi_timers(tcp_descriptor *desc, ErlDrvPort port)
{
- MultiTimerData *p;
- if (*first) {
+ if (desc->mtd) {
driver_cancel_timer(port);
}
- while (*first) {
- p = *first;
- *first = p->next;
- FREE(p);
+ while (desc->mtd) {
+ MultiTimerData *p = desc->mtd;
+ desc->mtd = p->next;
+ FREE(p);
+ }
+ desc->mtd = NULL;
+ if (desc->mtd_cache) {
+ FREE(desc->mtd_cache);
+ desc->mtd_cache = NULL;
}
}
-static void remove_multi_timer(MultiTimerData **first, ErlDrvPort port, MultiTimerData *p)
+static void remove_multi_timer(tcp_descriptor *desc, ErlDrvPort port, MultiTimerData *p)
{
if (p->prev != NULL) {
p->prev->next = p->next;
} else {
driver_cancel_timer(port);
- *first = p->next;
- if (*first) {
- ErlDrvTime ntmo = (*first)->when - erl_drv_monotonic_time(ERL_DRV_MSEC);
+ desc->mtd = p->next;
+ if (desc->mtd) {
+ ErlDrvTime ntmo = desc->mtd->when - erl_drv_monotonic_time(ERL_DRV_MSEC);
if (ntmo < 0)
ntmo = 0;
driver_set_timer(port, (unsigned long) ntmo);
@@ -12976,36 +13024,67 @@ static void remove_multi_timer(MultiTimerData **first, ErlDrvPort port, MultiTim
if (p->next != NULL) {
p->next->prev = p->prev;
}
- FREE(p);
+ if (desc->mtd_cache == NULL)
+ desc->mtd_cache = p;
+ else
+ FREE(p);
}
-static MultiTimerData *add_multi_timer(MultiTimerData **first, ErlDrvPort port,
+/* Cancel a timer based on the timeout_fun */
+static void cancel_multi_timer(tcp_descriptor *desc, ErlDrvPort port,
+ void (*timeout_fun)(ErlDrvData drv_data,
+ ErlDrvTermData caller))
+{
+ MultiTimerData *timer = desc->mtd;
+ while(timer && timer->timeout_function != timeout_fun) {
+ timer = timer->next;
+ }
+ if (timer) {
+ remove_multi_timer(desc, port, timer);
+ }
+}
+
+static MultiTimerData *add_multi_timer(tcp_descriptor *desc, ErlDrvPort port,
ErlDrvTermData caller, unsigned timeout,
void (*timeout_fun)(ErlDrvData drv_data,
ErlDrvTermData caller))
{
MultiTimerData *mtd, *p, *s;
- mtd = ALLOC(sizeof(MultiTimerData));
- mtd->when = erl_drv_monotonic_time(ERL_DRV_MSEC) + ((ErlDrvTime) timeout) + 1;
+
+ /* Use cached timer if available */
+ if (desc->mtd_cache != NULL) {
+ mtd = desc->mtd_cache;
+ desc->mtd_cache = NULL;
+ } else
+ mtd = ALLOC(sizeof(MultiTimerData));
+
+ if (timeout)
+ mtd->when = erl_drv_monotonic_time(ERL_DRV_MSEC) + ((ErlDrvTime) timeout);
+ else
+ mtd->when = INT64_MIN; /* Don't have to get the time for 0 msec timeouts */
+
mtd->timeout_function = timeout_fun;
mtd->caller = caller;
mtd->next = mtd->prev = NULL;
- for(p = *first,s = NULL; p != NULL; s = p, p = p->next) {
+
+ /* Find correct slot in timer linked list */
+ for(p = desc->mtd,s = NULL; p != NULL; s = p, p = p->next) {
if (p->when >= mtd->when) {
break;
}
}
+ /* Insert in linked list */
if (!p) {
if (!s) {
- *first = mtd;
+ desc->mtd = mtd;
} else {
s->next = mtd;
mtd->prev = s;
}
} else {
if (!s) {
- *first = mtd;
+ desc->mtd = mtd;
} else {
s->next = mtd;
mtd->prev = s;
@@ -13013,10 +13092,8 @@ static MultiTimerData *add_multi_timer(MultiTimerData **first, ErlDrvPort port,
mtd->next = p;
p->prev = mtd;
}
+ /* Possibly set new timer */
if (!s) {
- if (mtd->next) {
- driver_cancel_timer(port);
- }
driver_set_timer(port,timeout);
}
return mtd;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-24 09:38:27 +0000