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-rw-r--r--erts/emulator/drivers/common/efile_drv.c35
-rw-r--r--erts/emulator/drivers/common/inet_drv.c110
-rw-r--r--erts/emulator/drivers/common/zlib_drv.c73
-rw-r--r--erts/emulator/drivers/unix/ttsl_drv.c178
-rw-r--r--erts/emulator/drivers/win32/ttsl_drv.c16
5 files changed, 345 insertions, 67 deletions
diff --git a/erts/emulator/drivers/common/efile_drv.c b/erts/emulator/drivers/common/efile_drv.c
index b62e9a0306..b2cfe70f94 100644
--- a/erts/emulator/drivers/common/efile_drv.c
+++ b/erts/emulator/drivers/common/efile_drv.c
@@ -264,23 +264,6 @@ dt_private *get_dt_private(int);
-#define GET_TIME(i, b) \
- (i).year = get_int32((b) + 0 * 4); \
- (i).month = get_int32((b) + 1 * 4); \
- (i).day = get_int32((b) + 2 * 4); \
- (i).hour = get_int32((b) + 3 * 4); \
- (i).minute = get_int32((b) + 4 * 4); \
- (i).second = get_int32((b) + 5 * 4)
-
-#define PUT_TIME(i, b) \
- put_int32((i).year, (b) + 0 * 4); \
- put_int32((i).month, (b) + 1 * 4); \
- put_int32((i).day, (b) + 2 * 4); \
- put_int32((i).hour, (b) + 3 * 4); \
- put_int32((i).minute,(b) + 4 * 4); \
- put_int32((i).second,(b) + 5 * 4)
-
-
#if ALWAYS_READ_LINE_AHEAD
#define DEFAULT_LINEBUF_SIZE 2048
#else
@@ -1633,12 +1616,12 @@ static void invoke_altname(void *data)
}
static void invoke_pwritev(void *data) {
- struct t_data *d = (struct t_data *) data;
+ struct t_data* const d = (struct t_data *) data;
+ struct t_pwritev * const c = &d->c.pwritev;
SysIOVec *iov0;
SysIOVec *iov;
int iovlen;
int iovcnt;
- struct t_pwritev *c = &d->c.pwritev;
size_t p;
int segment;
size_t size, write_size, written;
@@ -1712,9 +1695,9 @@ static void invoke_pwritev(void *data) {
d->result_ok = 0;
d->again = 0;
deq_error:
- MUTEX_LOCK(d->c.writev.q_mtx);
- driver_deq(d->c.pwritev.port, c->size);
- MUTEX_UNLOCK(d->c.writev.q_mtx);
+ MUTEX_LOCK(c->q_mtx);
+ driver_deq(c->port, c->size);
+ MUTEX_UNLOCK(c->q_mtx);
goto done;
} else {
@@ -1725,9 +1708,9 @@ static void invoke_pwritev(void *data) {
ASSERT(written >= FILE_SEGMENT_WRITE);
}
- MUTEX_LOCK(d->c.writev.q_mtx);
- driver_deq(d->c.pwritev.port, written);
- MUTEX_UNLOCK(d->c.writev.q_mtx);
+ MUTEX_LOCK(c->q_mtx);
+ driver_deq(c->port, written);
+ MUTEX_UNLOCK(c->q_mtx);
done:
EF_FREE(iov); /* Free our copy of the vector, nothing to restore */
@@ -1955,6 +1938,8 @@ static void invoke_sendfile(void *data)
d->result_ok = 1;
if (d->c.sendfile.nbytes != 0)
d->c.sendfile.nbytes -= nbytes;
+ } else if (nbytes == 0 && d->c.sendfile.nbytes == 0) {
+ d->result_ok = 1;
} else
d->result_ok = 0;
} else {
diff --git a/erts/emulator/drivers/common/inet_drv.c b/erts/emulator/drivers/common/inet_drv.c
index db8a251fdd..5196eb51c6 100644
--- a/erts/emulator/drivers/common/inet_drv.c
+++ b/erts/emulator/drivers/common/inet_drv.c
@@ -268,14 +268,13 @@ static BOOL (WINAPI *fpSetHandleInformation)(HANDLE,DWORD,DWORD);
#define sock_htonl(x) htonl((x))
#define sock_send(s,buf,len,flag) send((s),(buf),(len),(flag))
#define sock_sendv(s, vec, size, np, flag) \
- WSASend((s),(WSABUF*)(vec),\
- (size),(np),(flag),NULL,NULL)
+ WSASend((s),(WSABUF*)(vec),(size),(np),(flag),NULL,NULL)
#define sock_recv(s,buf,len,flag) recv((s),(buf),(len),(flag))
#define sock_recvfrom(s,buf,blen,flag,addr,alen) \
- recvfrom((s),(buf),(blen),(flag),(addr),(alen))
+ recvfrom((s),(buf),(blen),(flag),(addr),(alen))
#define sock_sendto(s,buf,blen,flag,addr,alen) \
- sendto((s),(buf),(blen),(flag),(addr),(alen))
+ sendto((s),(buf),(blen),(flag),(addr),(alen))
#define sock_hostname(buf, len) gethostname((buf), (len))
#define sock_getservbyname(name,proto) getservbyname((name),(proto))
@@ -360,9 +359,9 @@ static ssize_t writev_fallback(int fd, const struct iovec *iov, int iovcnt, int
#define sock_accept(s, addr, len) accept((s), (addr), (len))
#define sock_send(s,buf,len,flag) inet_send((s),(buf),(len),(flag))
#define sock_sendto(s,buf,blen,flag,addr,alen) \
- sendto((s),(buf),(blen),(flag),(addr),(alen))
+ sendto((s),(buf),(blen),(flag),(addr),(alen))
#define sock_sendv(s, vec, size, np, flag) \
- (*(np) = writev_fallback((s), (struct iovec*)(vec), (size), (*(np))))
+ (*(np) = writev_fallback((s), (struct iovec*)(vec), (size), (*(np))))
#define sock_sendmsg(s,msghdr,flag) sendmsg((s),(msghdr),(flag))
#define sock_open(af, type, proto) socket((af), (type), (proto))
@@ -1178,6 +1177,7 @@ static ErlDrvSSizeT tcp_inet_ctl(ErlDrvData, unsigned int,
static void tcp_inet_timeout(ErlDrvData);
static void tcp_inet_process_exit(ErlDrvData, ErlDrvMonitor *);
static void inet_stop_select(ErlDrvEvent, void*);
+static void inet_emergency_close(ErlDrvData);
#ifdef __WIN32__
static void tcp_inet_event(ErlDrvData, ErlDrvEvent);
static void find_dynamic_functions(void);
@@ -1288,7 +1288,8 @@ static struct erl_drv_entry tcp_inet_driver_entry =
ERL_DRV_FLAG_USE_PORT_LOCKING|ERL_DRV_FLAG_SOFT_BUSY,
NULL,
tcp_inet_process_exit,
- inet_stop_select
+ inet_stop_select,
+ inet_emergency_close
};
@@ -1341,7 +1342,8 @@ static struct erl_drv_entry udp_inet_driver_entry =
ERL_DRV_FLAG_USE_PORT_LOCKING,
NULL,
NULL,
- inet_stop_select
+ inet_stop_select,
+ inet_emergency_close
};
#endif
@@ -1375,7 +1377,8 @@ static struct erl_drv_entry sctp_inet_driver_entry =
ERL_DRV_FLAG_USE_PORT_LOCKING,
NULL,
NULL, /* process_exit */
- inet_stop_select
+ inet_stop_select,
+ inet_emergency_close
};
#endif
@@ -1421,7 +1424,7 @@ static int packet_inet_input(udp_descriptor* udesc, HANDLE event);
static int packet_inet_output(udp_descriptor* udesc, HANDLE event);
#endif
-/* convert descriptor poiner to inet_descriptor pointer */
+/* convert descriptor pointer to inet_descriptor pointer */
#define INETP(d) (&(d)->inet)
#ifdef __OSE__
@@ -2890,6 +2893,9 @@ static ErlDrvTermData am_sctp_rtoinfo, /* Option names */
/* For #sctp_paddrinfo{}: */
am_active, am_inactive,
+# if HAVE_DECL_SCTP_UNCONFIRMED
+ am_unconfirmed,
+# endif
/* For #sctp_status{}: */
# if HAVE_DECL_SCTP_EMPTY
@@ -3919,7 +3925,10 @@ static void inet_init_sctp(void) {
/* For #sctp_paddrinfo{}: */
INIT_ATOM(active);
INIT_ATOM(inactive);
-
+# if HAVE_DECL_SCTP_UNCONFIRMED
+ INIT_ATOM(unconfirmed);
+# endif
+
/* For #sctp_status{}: */
# if HAVE_DECL_SCTP_EMPTY
INIT_ATOM(empty);
@@ -3948,9 +3957,9 @@ static int inet_init()
if (0 != erl_drv_tsd_key_create("inet_buffer_stack_key", &buffer_stack_key))
goto error;
- ASSERT(sizeof(struct in_addr) == 4);
+ ERTS_CT_ASSERT(sizeof(struct in_addr) == 4);
# if defined(HAVE_IN6) && defined(AF_INET6)
- ASSERT(sizeof(struct in6_addr) == 16);
+ ERTS_CT_ASSERT(sizeof(struct in6_addr) == 16);
# endif
INIT_ATOM(ok);
@@ -3996,7 +4005,7 @@ static int inet_init()
#ifdef HAVE_SCTP
/* Check the size of SCTP AssocID -- currently both this driver and the
Erlang part require 32 bit: */
- ASSERT(sizeof(sctp_assoc_t)==ASSOC_ID_LEN);
+ ERTS_CT_ASSERT(sizeof(sctp_assoc_t)==ASSOC_ID_LEN);
# if defined(HAVE_SCTP_BINDX)
p_sctp_bindx = sctp_bindx;
# if defined(HAVE_SCTP_PEELOFF)
@@ -4721,6 +4730,36 @@ static char* sockaddr_to_buf(struct sockaddr* addr, char* ptr, char* end)
return NULL;
}
+/* sockaddr_bufsz_need
+ * Returns the number of bytes needed to store the information
+ * through sockaddr_to_buf
+ */
+
+static size_t sockaddr_bufsz_need(struct sockaddr* addr)
+{
+ if (addr->sa_family == AF_INET || addr->sa_family == 0) {
+ return 1 + sizeof(struct in_addr);
+ }
+#if defined(HAVE_IN6) && defined(AF_INET6)
+ else if (addr->sa_family == AF_INET6) {
+ return 1 + sizeof(struct in6_addr);
+ }
+#endif
+#if defined(AF_LINK)
+ if (addr->sa_family == AF_LINK) {
+ struct sockaddr_dl *sdl_p = (struct sockaddr_dl*) addr;
+ return 2 + sdl_p->sdl_alen;
+ }
+#endif
+#if defined(AF_PACKET) && defined(HAVE_NETPACKET_PACKET_H)
+ else if(addr->sa_family == AF_PACKET) {
+ struct sockaddr_ll *sll_p = (struct sockaddr_ll*) addr;
+ return 2 + sll_p->sll_halen;
+ }
+#endif
+ return 0;
+}
+
static char* buf_to_sockaddr(char* ptr, char* end, struct sockaddr* addr)
{
buf_check(ptr,end,1);
@@ -5799,6 +5838,11 @@ done:
}
#elif defined(HAVE_GETIFADDRS)
+#ifdef DEBUG
+#define GETIFADDRS_BUFSZ (1)
+#else
+#define GETIFADDRS_BUFSZ (512)
+#endif
static ErlDrvSSizeT inet_ctl_getifaddrs(inet_descriptor* desc_p,
char **rbuf_pp, ErlDrvSizeT rsize)
@@ -5809,15 +5853,15 @@ static ErlDrvSSizeT inet_ctl_getifaddrs(inet_descriptor* desc_p,
char *buf_p;
char *buf_alloc_p;
- buf_size = 512;
- buf_alloc_p = ALLOC(buf_size);
+ buf_size = GETIFADDRS_BUFSZ;
+ buf_alloc_p = ALLOC(GETIFADDRS_BUFSZ);
buf_p = buf_alloc_p;
# define BUF_ENSURE(Size) \
do { \
int NEED_, GOT_ = buf_p - buf_alloc_p; \
NEED_ = GOT_ + (Size); \
if (NEED_ > buf_size) { \
- buf_size = NEED_ + 512; \
+ buf_size = NEED_ + GETIFADDRS_BUFSZ; \
buf_alloc_p = REALLOC(buf_alloc_p, buf_size); \
buf_p = buf_alloc_p + GOT_; \
} \
@@ -5830,7 +5874,7 @@ static ErlDrvSSizeT inet_ctl_getifaddrs(inet_descriptor* desc_p,
while (! (P_ = sockaddr_to_buf((sa), buf_p, \
buf_alloc_p+buf_size))) { \
int GOT_ = buf_p - buf_alloc_p; \
- buf_size += 512; \
+ buf_size += GETIFADDRS_BUFSZ; \
buf_alloc_p = REALLOC(buf_alloc_p, buf_size); \
buf_p = buf_alloc_p + GOT_; \
} \
@@ -5887,10 +5931,11 @@ static ErlDrvSSizeT inet_ctl_getifaddrs(inet_descriptor* desc_p,
|| ifa_p->ifa_addr->sa_family == AF_PACKET
#endif
) {
- char *bp = buf_p;
- BUF_ENSURE(1);
- SOCKADDR_TO_BUF(INET_IFOPT_HWADDR, ifa_p->ifa_addr);
- if (buf_p - bp < 4) buf_p = bp; /* Empty hwaddr */
+ size_t need = sockaddr_bufsz_need(ifa_p->ifa_addr);
+ if (need > 3) {
+ BUF_ENSURE(1 + need);
+ SOCKADDR_TO_BUF(INET_IFOPT_HWADDR, ifa_p->ifa_addr);
+ }
}
#endif
}
@@ -5905,6 +5950,7 @@ static ErlDrvSSizeT inet_ctl_getifaddrs(inet_descriptor* desc_p,
return buf_size;
# undef BUF_ENSURE
}
+#undef GETIFADDRS_BUFSZ
#else
@@ -7338,8 +7384,13 @@ static int load_paddrinfo (ErlDrvTermData * spec, int i,
case SCTP_INACTIVE:
i = LOAD_ATOM (spec, i, am_inactive);
break;
+# if HAVE_DECL_SCTP_UNCONFIRMED
+ case SCTP_UNCONFIRMED:
+ i = LOAD_ATOM (spec, i, am_unconfirmed);
+ break;
+# endif
default:
- ASSERT(0); /* NB: SCTP_UNCONFIRMED modifier not yet supported */
+ i = LOAD_ATOM (spec, i, am_undefined);
}
i = LOAD_INT (spec, i, pai->spinfo_cwnd);
i = LOAD_INT (spec, i, pai->spinfo_srtt);
@@ -8204,6 +8255,19 @@ static void inet_stop(inet_descriptor* desc)
FREE(desc);
}
+static void inet_emergency_close(ErlDrvData data)
+{
+ /* valid for any (UDP, TCP or SCTP) descriptor */
+ tcp_descriptor* tcp_desc = (tcp_descriptor*)data;
+ inet_descriptor* desc = INETP(tcp_desc);
+ DEBUGF(("inet_emergency_close(%ld) {s=%d\r\n",
+ (long)desc->port, desc->s));
+ if (desc->s != INVALID_SOCKET) {
+ sock_close(desc->s);
+ }
+}
+
+
static void set_default_msgq_limits(ErlDrvPort port)
{
ErlDrvSizeT q_high = INET_HIGH_MSGQ_WATERMARK;
diff --git a/erts/emulator/drivers/common/zlib_drv.c b/erts/emulator/drivers/common/zlib_drv.c
index 3143e4511d..f7b2d91d23 100644
--- a/erts/emulator/drivers/common/zlib_drv.c
+++ b/erts/emulator/drivers/common/zlib_drv.c
@@ -62,8 +62,17 @@
#define CRC32_COMBINE 23
#define ADLER32_COMBINE 24
+#define INFLATE_CHUNK 25
+
+
#define DEFAULT_BUFSZ 4000
+/* This flag is used in the same places, where zlib return codes
+ * (Z_OK, Z_STREAM_END, Z_NEED_DICT) are. So, we need to set it to
+ * relatively large value to avoid possible value clashes in future.
+ * */
+#define INFLATE_HAS_MORE 100
+
static int zlib_init(void);
static ErlDrvData zlib_start(ErlDrvPort port, char* buf);
static void zlib_stop(ErlDrvData e);
@@ -295,6 +304,58 @@ static int zlib_inflate(ZLibData* d, int flush)
return res;
}
+static int zlib_inflate_chunk(ZLibData* d)
+{
+ int res = Z_OK;
+
+ if ((d->bin == NULL) && (zlib_output_init(d) < 0)) {
+ errno = ENOMEM;
+ return Z_ERRNO;
+ }
+
+ while ((driver_sizeq(d->port) > 0) && (d->s.avail_out > 0) &&
+ (res != Z_STREAM_END)) {
+ int vlen;
+ SysIOVec* iov = driver_peekq(d->port, &vlen);
+ int len;
+
+ d->s.next_in = iov[0].iov_base;
+ d->s.avail_in = iov[0].iov_len;
+ while((d->s.avail_in > 0) && (d->s.avail_out > 0) && (res != Z_STREAM_END)) {
+ res = inflate(&d->s, Z_NO_FLUSH);
+ if (res == Z_NEED_DICT) {
+ /* Essential to eat the header bytes that zlib has looked at */
+ len = iov[0].iov_len - d->s.avail_in;
+ driver_deq(d->port, len);
+ return res;
+ }
+ if (res == Z_BUF_ERROR) {
+ /* Was possible more output, but actually not */
+ res = Z_OK;
+ }
+ else if (res < 0) {
+ return res;
+ }
+ }
+ len = iov[0].iov_len - d->s.avail_in;
+ driver_deq(d->port, len);
+ }
+
+ /* We are here because all input was consumed or EOS reached or output
+ * buffer is full */
+ if (d->want_crc) {
+ d->crc = crc32(d->crc, (unsigned char*) d->bin->orig_bytes,
+ d->binsz - d->s.avail_out);
+ }
+ zlib_output(d);
+ if ((res == Z_OK) && (d->s.avail_in > 0))
+ res = INFLATE_HAS_MORE;
+ else if (res == Z_STREAM_END) {
+ d->inflate_eos_seen = 1;
+ }
+ return res;
+}
+
static int zlib_deflate(ZLibData* d, int flush)
{
int res = Z_OK;
@@ -568,6 +629,18 @@ static ErlDrvSSizeT zlib_ctl(ErlDrvData drv_data, unsigned int command, char *bu
return zlib_return(res, rbuf, rlen);
}
+ case INFLATE_CHUNK:
+ if (d->state != ST_INFLATE) goto badarg;
+ if (len != 0) goto badarg;
+ res = zlib_inflate_chunk(d);
+ if (res == INFLATE_HAS_MORE) {
+ return zlib_value2(4, 0, rbuf, rlen);
+ } else if (res == Z_NEED_DICT) {
+ return zlib_value2(3, d->s.adler, rbuf, rlen);
+ } else {
+ return zlib_return(res, rbuf, rlen);
+ }
+
case GET_QSIZE:
return zlib_value(driver_sizeq(d->port), rbuf, rlen);
diff --git a/erts/emulator/drivers/unix/ttsl_drv.c b/erts/emulator/drivers/unix/ttsl_drv.c
index 491e0a090e..a5960716f2 100644
--- a/erts/emulator/drivers/unix/ttsl_drv.c
+++ b/erts/emulator/drivers/unix/ttsl_drv.c
@@ -32,6 +32,10 @@ static ErlDrvData ttysl_start(ErlDrvPort, char*);
#ifdef HAVE_TERMCAP /* else make an empty driver that can not be opened */
+#ifndef WANT_NONBLOCKING
+#define WANT_NONBLOCKING
+#endif
+
#include "sys.h"
#include <ctype.h>
#include <stdlib.h>
@@ -39,6 +43,7 @@ static ErlDrvData ttysl_start(ErlDrvPort, char*);
#include <string.h>
#include <signal.h>
#include <fcntl.h>
+#include <limits.h>
#include <locale.h>
#include <unistd.h>
#include <termios.h>
@@ -57,6 +62,14 @@ static ErlDrvData ttysl_start(ErlDrvPort, char*);
#include <langinfo.h>
#endif
+#if defined IOV_MAX
+#define MAXIOV IOV_MAX
+#elif defined UIO_MAXIOV
+#define MAXIOV UIO_MAXIOV
+#else
+#define MAXIOV 16
+#endif
+
#define TRUE 1
#define FALSE 0
@@ -80,12 +93,15 @@ static volatile int cols_needs_update = FALSE;
#define OP_INSC 2
#define OP_DELC 3
#define OP_BEEP 4
+#define OP_PUTC_SYNC 5
/* Control op */
#define CTRL_OP_GET_WINSIZE 100
#define CTRL_OP_GET_UNICODE_STATE 101
#define CTRL_OP_SET_UNICODE_STATE 102
-
+/* We use 1024 as the buf size as that was the default buf size of FILE streams
+ on all platforms that I checked. */
+#define TTY_BUFFSIZE 1024
static int lbuf_size = BUFSIZ;
static Uint32 *lbuf; /* The current line buffer */
@@ -113,13 +129,19 @@ static int lpos; /* The current "cursor position" in the line buf
/* Main interface functions. */
static void ttysl_stop(ErlDrvData);
static void ttysl_from_erlang(ErlDrvData, char*, ErlDrvSizeT);
+static void ttysl_to_tty(ErlDrvData, ErlDrvEvent);
+static void ttysl_flush_tty(ErlDrvData);
static void ttysl_from_tty(ErlDrvData, ErlDrvEvent);
static void ttysl_stop_select(ErlDrvEvent, void*);
static Sint16 get_sint16(char*);
static ErlDrvPort ttysl_port;
static int ttysl_fd;
-static FILE *ttysl_out;
+static int ttysl_terminate = 0;
+static int ttysl_send_ok = 0;
+static ErlDrvBinary *putcbuf;
+static int putcpos;
+static int putclen;
/* Functions that work on the line buffer. */
static int start_lbuf(void);
@@ -201,22 +223,22 @@ struct erl_drv_entry ttsl_driver_entry = {
IF_IMPL(ttysl_stop),
IF_IMPL(ttysl_from_erlang),
IF_IMPL(ttysl_from_tty),
- NULL,
- "tty_sl",
- NULL,
- NULL,
+ IF_IMPL(ttysl_to_tty),
+ "tty_sl", /* driver_name */
+ NULL, /* finish */
+ NULL, /* handle */
IF_IMPL(ttysl_control),
NULL, /* timeout */
NULL, /* outputv */
NULL, /* ready_async */
- NULL, /* flush */
+ IF_IMPL(ttysl_flush_tty),
NULL, /* call */
NULL, /* event */
ERL_DRV_EXTENDED_MARKER,
ERL_DRV_EXTENDED_MAJOR_VERSION,
ERL_DRV_EXTENDED_MINOR_VERSION,
0, /* ERL_DRV_FLAGs */
- NULL,
+ NULL, /* handle2 */
NULL, /* process_exit */
IF_IMPL(ttysl_stop_select)
};
@@ -296,8 +318,7 @@ static ErlDrvData ttysl_start(ErlDrvPort port, char* buf)
return ERL_DRV_ERROR_GENERAL;
}
- /* Open the terminal and set the terminal */
- ttysl_out = fdopen(ttysl_fd, "w");
+ SET_NONBLOCKING(ttysl_fd);
#ifdef PRIMITIVE_UTF8_CHECK
setlocale(LC_CTYPE, ""); /* Set international environment,
@@ -317,8 +338,8 @@ static ErlDrvData ttysl_start(ErlDrvPort port, char* buf)
}
#endif
DEBUGLOG(("utf8_mode is %s\n",(utf8_mode) ? "on" : "off"));
- sys_sigset(SIGCONT, cont);
- sys_sigset(SIGWINCH, winch);
+ sys_signal(SIGCONT, cont);
+ sys_signal(SIGWINCH, winch);
driver_select(port, (ErlDrvEvent)(UWord)ttysl_fd, ERL_DRV_READ|ERL_DRV_USE, 1);
ttysl_port = port;
@@ -400,12 +421,14 @@ static void ttysl_stop(ErlDrvData ttysl_data)
stop_lbuf();
stop_termcap();
tty_reset(ttysl_fd);
- driver_select(ttysl_port, (ErlDrvEvent)(UWord)ttysl_fd, ERL_DRV_READ|ERL_DRV_USE, 0);
- sys_sigset(SIGCONT, SIG_DFL);
- sys_sigset(SIGWINCH, SIG_DFL);
+ driver_select(ttysl_port, (ErlDrvEvent)(UWord)ttysl_fd,
+ ERL_DRV_WRITE|ERL_DRV_READ|ERL_DRV_USE, 0);
+ sys_signal(SIGCONT, SIG_DFL);
+ sys_signal(SIGWINCH, SIG_DFL);
}
ttysl_port = (ErlDrvPort)-1;
ttysl_fd = -1;
+ ttysl_terminate = 0;
/* return TRUE; */
}
@@ -650,10 +673,26 @@ static int check_buf_size(byte *s, int n)
static void ttysl_from_erlang(ErlDrvData ttysl_data, char* buf, ErlDrvSizeT count)
{
+ ErlDrvSizeT sz;
+
+ sz = driver_sizeq(ttysl_port);
+
+ putclen = count > TTY_BUFFSIZE ? TTY_BUFFSIZE : count;
+ putcbuf = driver_alloc_binary(putclen);
+ putcpos = 0;
+
if (lpos > MAXSIZE)
put_chars((byte*)"\n", 1);
switch (buf[0]) {
+ case OP_PUTC_SYNC:
+ /* Using sync means that we have to send an ok to the
+ controlling process for each command call. We delay
+ sending ok if the driver queue exceeds a certain size.
+ We do not set ourselves as a busy port, as this
+ could be very bad for user_drv, if it gets blocked on
+ the port_command. */
+ /* fall through */
case OP_PUTC:
DEBUGLOG(("OP: Putc(%lu)",(unsigned long) count-1));
if (check_buf_size((byte*)buf+1, count-1) == 0)
@@ -678,10 +717,104 @@ static void ttysl_from_erlang(ErlDrvData ttysl_data, char* buf, ErlDrvSizeT coun
/* Unknown op, just ignore. */
break;
}
- fflush(ttysl_out);
+
+ driver_enq_bin(ttysl_port,putcbuf,0,putcpos);
+
+ if (sz == 0) {
+ for (;;) {
+ int written, qlen;
+ SysIOVec *iov;
+
+ iov = driver_peekq(ttysl_port,&qlen);
+ if (iov)
+ written = writev(ttysl_fd, iov, qlen > MAXIOV ? MAXIOV : qlen);
+ else
+ written = 0;
+ if (written < 0) {
+ if (errno == EAGAIN) {
+ driver_select(ttysl_port,(ErlDrvEvent)(long)ttysl_fd,
+ ERL_DRV_USE|ERL_DRV_WRITE,1);
+ break;
+ } else {
+ /* we ignore all other errors */
+ break;
+ }
+ } else {
+ if (driver_deq(ttysl_port, written) == 0)
+ break;
+ }
+ }
+ }
+
+ if (buf[0] == OP_PUTC_SYNC) {
+ if (driver_sizeq(ttysl_port) > TTY_BUFFSIZE && !ttysl_terminate) {
+ /* We delay sending the ack until the buffer has been consumed */
+ ttysl_send_ok = 1;
+ } else {
+ ErlDrvTermData spec[] = {
+ ERL_DRV_PORT, driver_mk_port(ttysl_port),
+ ERL_DRV_ATOM, driver_mk_atom("ok"),
+ ERL_DRV_TUPLE, 2
+ };
+ ASSERT(ttysl_send_ok == 0);
+ erl_drv_output_term(driver_mk_port(ttysl_port), spec,
+ sizeof(spec) / sizeof(spec[0]));
+ }
+ }
+
return; /* TRUE; */
}
+static void ttysl_to_tty(ErlDrvData ttysl_data, ErlDrvEvent fd) {
+ for (;;) {
+ int written, qlen;
+ SysIOVec *iov;
+ ErlDrvSizeT sz;
+
+ iov = driver_peekq(ttysl_port,&qlen);
+ if (iov)
+ written = writev(ttysl_fd, iov, qlen > MAXIOV ? MAXIOV : qlen);
+ else
+ written = 0;
+ if (written < 0) {
+ if (errno == EAGAIN) {
+ break;
+ } else {
+ /* we ignore all other errors */
+ }
+ } else {
+ sz = driver_deq(ttysl_port, written);
+ if (sz < TTY_BUFFSIZE && ttysl_send_ok) {
+ ErlDrvTermData spec[] = {
+ ERL_DRV_PORT, driver_mk_port(ttysl_port),
+ ERL_DRV_ATOM, driver_mk_atom("ok"),
+ ERL_DRV_TUPLE, 2
+ };
+ ttysl_send_ok = 0;
+ erl_drv_output_term(driver_mk_port(ttysl_port), spec,
+ sizeof(spec) / sizeof(spec[0]));
+ }
+ if (sz == 0) {
+ driver_select(ttysl_port,(ErlDrvEvent)(long)ttysl_fd,
+ ERL_DRV_WRITE,0);
+ if (ttysl_terminate)
+ /* flush has been called, which means we should terminate
+ when queue is empty. This will not send any exit
+ message */
+ driver_failure_atom(ttysl_port, "normal");
+ break;
+ }
+ }
+ }
+
+ return;
+}
+
+static void ttysl_flush_tty(ErlDrvData ttysl_data) {
+ ttysl_terminate = 1;
+ return;
+}
+
static void ttysl_from_tty(ErlDrvData ttysl_data, ErlDrvEvent fd)
{
byte b[1024];
@@ -1070,7 +1203,14 @@ static int write_buf(Uint32 *s, int n)
/* The basic procedure for outputting one character. */
static int outc(int c)
{
- return (int)putc(c, ttysl_out);
+ putcbuf->orig_bytes[putcpos++] = c;
+ if (putcpos == putclen) {
+ driver_enq_bin(ttysl_port,putcbuf,0,putclen);
+ putcpos = 0;
+ putclen = TTY_BUFFSIZE;
+ putcbuf = driver_alloc_binary(BUFSIZ);
+ }
+ return 1;
}
static int move_cursor(int from, int to)
@@ -1318,11 +1458,11 @@ static RETSIGTYPE suspend(int sig)
exit(1);
}
- sys_sigset(sig, SIG_DFL); /* Set signal handler to default */
+ sys_signal(sig, SIG_DFL); /* Set signal handler to default */
sys_sigrelease(sig); /* Allow 'sig' to come through */
kill(getpid(), sig); /* Send ourselves the signal */
sys_sigblock(sig); /* Reset to old mask */
- sys_sigset(sig, suspend); /* Reset signal handler */
+ sys_signal(sig, suspend); /* Reset signal handler */
if (tty_set(ttysl_fd) < 0) {
fprintf(stderr,"Can't set tty raw \n");
diff --git a/erts/emulator/drivers/win32/ttsl_drv.c b/erts/emulator/drivers/win32/ttsl_drv.c
index 502cb58dfa..851c336a11 100644
--- a/erts/emulator/drivers/win32/ttsl_drv.c
+++ b/erts/emulator/drivers/win32/ttsl_drv.c
@@ -46,6 +46,7 @@ static int rows; /* Number of rows available. */
#define OP_INSC 2
#define OP_DELC 3
#define OP_BEEP 4
+#define OP_PUTC_SYNC 5
/* Control op */
#define CTRL_OP_GET_WINSIZE 100
@@ -458,6 +459,7 @@ static void ttysl_from_erlang(ErlDrvData ttysl_data, char* buf, ErlDrvSizeT coun
switch (buf[0]) {
case OP_PUTC:
+ case OP_PUTC_SYNC:
DEBUGLOG(("OP: Putc(%I64u)",(unsigned long long)count-1));
if (check_buf_size((byte*)buf+1, count-1) == 0)
return;
@@ -481,6 +483,20 @@ static void ttysl_from_erlang(ErlDrvData ttysl_data, char* buf, ErlDrvSizeT coun
/* Unknown op, just ignore. */
break;
}
+
+ if (buf[0] == OP_PUTC_SYNC) {
+ /* On windows we do a blocking write to the tty so we just
+ send the ack immidiately. If at some point in the future
+ someone has a problem with tty output being blocking
+ this has to be changed. */
+ ErlDrvTermData spec[] = {
+ ERL_DRV_PORT, driver_mk_port(ttysl_port),
+ ERL_DRV_ATOM, driver_mk_atom("ok"),
+ ERL_DRV_TUPLE, 2
+ };
+ erl_drv_output_term(driver_mk_port(ttysl_port), spec,
+ sizeof(spec) / sizeof(spec[0]));
+ }
return;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-30 16:38:18 +0000