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-rw-r--r--lib/erl_interface/src/misc/ei_init.c32
-rw-r--r--lib/erl_interface/src/misc/ei_internal.h20
-rw-r--r--lib/erl_interface/src/misc/ei_portio.c865
-rw-r--r--lib/erl_interface/src/misc/ei_portio.h95
4 files changed, 800 insertions, 212 deletions
diff --git a/lib/erl_interface/src/misc/ei_init.c b/lib/erl_interface/src/misc/ei_init.c
new file mode 100644
index 0000000000..5357968657
--- /dev/null
+++ b/lib/erl_interface/src/misc/ei_init.c
@@ -0,0 +1,32 @@
+/*
+ * %CopyrightBegin%
+ *
+ * Copyright Ericsson AB 2019. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * %CopyrightEnd%
+ */
+
+#include "ei.h"
+#include "ei_resolve.h"
+#include "ei_internal.h"
+
+int
+ei_init(void)
+{
+ int error = ei_init_connect();
+ if (error)
+ return error;
+ return ei_init_resolve();
+}
diff --git a/lib/erl_interface/src/misc/ei_internal.h b/lib/erl_interface/src/misc/ei_internal.h
index aa6aacd703..f28dd6d668 100644
--- a/lib/erl_interface/src/misc/ei_internal.h
+++ b/lib/erl_interface/src/misc/ei_internal.h
@@ -22,19 +22,20 @@
#ifndef _EI_INTERNAL_H
#define _EI_INTERNAL_H
+#ifdef EI_HIDE_REAL_ERRNO
+# define EI_CONN_SAVE_ERRNO__(E) \
+ ((E) == ETIMEDOUT ? (erl_errno = ETIMEDOUT) : (erl_errno = EIO))
+#else
+# define EI_CONN_SAVE_ERRNO__(E) \
+ (erl_errno = (E))
+#endif
+
/*
* Some useful stuff not to be exported to users.
*/
#ifdef __WIN32__
#define MAXPATHLEN 256
-#define writesocket(sock,buf,nbyte) send(sock,buf,nbyte,0)
-#define readsocket(sock,buf,nbyte) recv(sock,buf,nbyte,0)
-#else /* not __WIN32__ */
-#define writesocket write
-#define readsocket read
-#define closesocket close
-#define ioctlsocket ioctl
#endif
/*
@@ -152,7 +153,12 @@
extern int ei_tracelevel;
+int ei_init_connect(void);
+
void ei_trace_printf(const char *name, int level, const char *format, ...);
int ei_internal_use_r9_pids_ports(void);
+
+int ei_get_cbs_ctx__(ei_socket_callbacks **cbs, void **ctx, int fd);
+
#endif /* _EI_INTERNAL_H */
diff --git a/lib/erl_interface/src/misc/ei_portio.c b/lib/erl_interface/src/misc/ei_portio.c
index 8cd35bf2e5..bccc86c1b1 100644
--- a/lib/erl_interface/src/misc/ei_portio.c
+++ b/lib/erl_interface/src/misc/ei_portio.c
@@ -19,9 +19,13 @@
*
*/
+
+#include "eidef.h"
+
#ifdef __WIN32__
#include <winsock2.h>
#include <windows.h>
+#include <winbase.h>
#include <process.h>
#include <stdio.h>
#include <stdlib.h>
@@ -35,10 +39,6 @@ static unsigned long param_one = 1;
#define SET_BLOCKING(Sock) ioctlsocket((Sock),FIONBIO,&param_zero)
#define SET_NONBLOCKING(Sock) ioctlsocket((Sock),FIONBIO,&param_one)
-#define ERROR_WOULDBLOCK WSAEWOULDBLOCK
-#define ERROR_TIMEDOUT WSAETIMEDOUT
-#define ERROR_INPROGRESS WSAEINPROGRESS
-#define GET_SOCKET_ERROR() WSAGetLastError()
#define MEANS_SOCKET_ERROR(Ret) ((Ret == SOCKET_ERROR))
#define IS_INVALID_SOCKET(Sock) ((Sock) == INVALID_SOCKET)
@@ -50,125 +50,414 @@ static unsigned long param_one = 1;
#include <taskLib.h>
#include <inetLib.h>
#include <selectLib.h>
-#include <sys/types.h>
#include <ioLib.h>
#include <unistd.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <timers.h>
static unsigned long param_zero = 0;
static unsigned long param_one = 1;
#define SET_BLOCKING(Sock) ioctl((Sock),FIONBIO,(int)&param_zero)
#define SET_NONBLOCKING(Sock) ioctl((Sock),FIONBIO,(int)&param_one)
-#define ERROR_WOULDBLOCK EWOULDBLOCK
-#define ERROR_TIMEDOUT ETIMEDOUT
-#define ERROR_INPROGRESS EINPROGRESS
-#define GET_SOCKET_ERROR() (errno)
#define MEANS_SOCKET_ERROR(Ret) ((Ret) == ERROR)
#define IS_INVALID_SOCKET(Sock) ((Sock) < 0)
#else /* other unix */
#include <stdlib.h>
-#include <sys/types.h>
#include <sys/socket.h>
-#include <sys/uio.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <arpa/inet.h>
+#include <netdb.h>
-#ifndef EWOULDBLOCK
-#define ERROR_WOULDBLOCK EAGAIN
-#else
-#define ERROR_WOULDBLOCK EWOULDBLOCK
-#endif
#define SET_BLOCKING(fd) fcntl((fd), F_SETFL, \
fcntl((fd), F_GETFL, 0) & ~O_NONBLOCK)
#define SET_NONBLOCKING(fd) fcntl((fd), F_SETFL, \
fcntl((fd), F_GETFL, 0) | O_NONBLOCK)
-#define ERROR_TIMEDOUT ETIMEDOUT
-#define ERROR_INPROGRESS EINPROGRESS
-#define GET_SOCKET_ERROR() (errno)
#define MEANS_SOCKET_ERROR(Ret) ((Ret) < 0)
#define IS_INVALID_SOCKET(Sock) ((Sock) < 0)
#endif
/* common includes */
-#include "eidef.h"
+#include <sys/types.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
-#include "ei_portio.h"
-#include "ei_internal.h"
-
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#else
#include <time.h>
#endif
+#ifdef HAVE_SYS_SELECT_H
+#include <sys/select.h>
+#endif
+#include "ei_portio.h"
+#include "ei_internal.h"
+
+#ifdef __WIN32__
-#ifdef HAVE_WRITEV
-static int ei_writev_t(int fd, struct iovec *iov, int iovcnt, unsigned ms)
+#define writesocket(sock,buf,nbyte) send(sock,buf,nbyte,0)
+#define readsocket(sock,buf,nbyte) recv(sock,buf,nbyte,0)
+
+static int get_error(void)
{
- int res;
- if (ms != 0) {
- fd_set writemask;
- struct timeval tv;
- tv.tv_sec = (time_t) (ms / 1000U);
- ms %= 1000U;
- tv.tv_usec = (time_t) (ms * 1000U);
- FD_ZERO(&writemask);
- FD_SET(fd,&writemask);
- switch (select(fd+1, NULL, &writemask, NULL, &tv)) {
- case -1 :
- return -1; /* i/o error */
- case 0:
- return -2; /* timeout */
- default:
- if (!FD_ISSET(fd, &writemask)) {
- return -1; /* Other error */
- }
- }
+ switch (WSAGetLastError()) {
+ case WSAEWOULDBLOCK: return EWOULDBLOCK;
+ case WSAETIMEDOUT: return ETIMEDOUT;
+ case WSAEINPROGRESS: return EINPROGRESS;
+ case WSA_NOT_ENOUGH_MEMORY: return ENOMEM;
+ case WSA_INVALID_PARAMETER: return EINVAL;
+ case WSAEBADF: return EBADF;
+ case WSAEINVAL: return EINVAL;
+ case WSAEADDRINUSE: return EADDRINUSE;
+ case WSAENETUNREACH: return ENETUNREACH;
+ case WSAECONNABORTED: return ECONNABORTED;
+ case WSAECONNRESET: return ECONNRESET;
+ case WSAECONNREFUSED: return ECONNREFUSED;
+ case WSAEHOSTUNREACH: return EHOSTUNREACH;
+ case WSAEMFILE: return EMFILE;
+ case WSAEALREADY: return EALREADY;
+ default: return EIO;
}
+}
+
+#else /* not __WIN32__ */
+
+#define writesocket write
+#define readsocket read
+#define closesocket close
+#define ioctlsocket ioctl
+
+static int get_error(void)
+{
+ int err = errno;
+ if (err == 0)
+ return EIO; /* Make sure never to return 0 as error code... */
+ return err;
+}
+
+#endif
+
+int ei_plugin_socket_impl__ = 0;
+
+/*
+ * Callbacks for communication over TCP/IPv4
+ */
+
+static int tcp_get_fd(void *ctx, int *fd)
+{
+ return EI_DFLT_CTX_TO_FD__(ctx, fd);
+}
+
+static int tcp_hs_packet_header_size(void *ctx, int *sz)
+{
+ int fd;
+ *sz = 2;
+ return EI_DFLT_CTX_TO_FD__(ctx, &fd);
+}
+
+static int tcp_handshake_complete(void *ctx)
+{
+ int res, fd, one = 1;
+
+ res = EI_DFLT_CTX_TO_FD__(ctx, &fd);
+ if (res)
+ return res;
+
+ res = setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *)&one, sizeof(one));
+ if (MEANS_SOCKET_ERROR(res))
+ return get_error();
+
+ res = setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, (char *)&one, sizeof(one));
+ if (MEANS_SOCKET_ERROR(res))
+ return get_error();
+
+ return 0;
+}
+
+static int tcp_socket(void **ctx, void *setup_ctx)
+{
+ int fd = socket(AF_INET, SOCK_STREAM, 0);
+ if (MEANS_SOCKET_ERROR(fd))
+ return get_error();
+
+ *ctx = EI_FD_AS_CTX__(fd);
+ return 0;
+}
+
+static int tcp_close(void *ctx)
+{
+ int fd, res;
+
+ res = EI_DFLT_CTX_TO_FD__(ctx, &fd);
+ if (res)
+ return res;
+
+ res = closesocket(fd);
+ if (MEANS_SOCKET_ERROR(res))
+ return get_error();
+
+ return 0;
+}
+
+static int tcp_listen(void *ctx, void *addr, int *len, int backlog)
+{
+ int res, fd;
+ socklen_t sz = (socklen_t) *len;
+ int on = 1;
+
+ res = EI_DFLT_CTX_TO_FD__(ctx, &fd);
+ if (res)
+ return res;
+
+ res = setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char *) &on, sizeof(on));
+ if (MEANS_SOCKET_ERROR(res))
+ return get_error();
+
+ res = bind(fd, (struct sockaddr *) addr, sz);
+ if (MEANS_SOCKET_ERROR(res))
+ return get_error();
+
+ res = getsockname(fd, (struct sockaddr *) addr, (socklen_t *) &sz);
+ if (MEANS_SOCKET_ERROR(res))
+ return get_error();
+ *len = (int) sz;
+
+ res = listen(fd, backlog);
+ if (MEANS_SOCKET_ERROR(res))
+ return get_error();
+
+ return 0;
+}
+
+static int tcp_accept(void **ctx, void *addr, int *len, unsigned unused)
+{
+ int fd, res;
+ socklen_t addr_len = (socklen_t) *len;
+
+ if (!ctx)
+ return EINVAL;
+
+ res = EI_DFLT_CTX_TO_FD__(*ctx, &fd);
+ if (res)
+ return res;
+
+ res = accept(fd, (struct sockaddr*) addr, &addr_len);
+ if (MEANS_SOCKET_ERROR(res))
+ return get_error();
+
+ *len = (int) addr_len;
+
+ *ctx = EI_FD_AS_CTX__(res);
+ return 0;
+}
+
+static int tcp_connect(void *ctx, void *addr, int len, unsigned unused)
+{
+ int res, fd;
+
+ res = EI_DFLT_CTX_TO_FD__(ctx, &fd);
+ if (res)
+ return res;
+
+ res = connect(fd, (struct sockaddr *) addr, len);
+ if (MEANS_SOCKET_ERROR(res))
+ return get_error();
+
+ return 0;
+}
+
+#if defined(EI_HAVE_STRUCT_IOVEC__) && defined(HAVE_WRITEV)
+
+static int tcp_writev(void *ctx, const void *viov, int iovcnt, ssize_t *len, unsigned unused)
+{
+ const struct iovec *iov = (const struct iovec *) viov;
+ int fd, error;
+ ssize_t res;
+
+ error = EI_DFLT_CTX_TO_FD__(ctx, &fd);
+ if (error)
+ return error;
+
res = writev(fd, iov, iovcnt);
- return (res < 0) ? -1 : res;
+ if (MEANS_SOCKET_ERROR(res))
+ return get_error();
+ *len = res;
+ return 0;
+}
+
+#endif
+
+static int tcp_write(void *ctx, const char* buf, ssize_t *len, unsigned unused)
+{
+ int error, fd;
+ ssize_t res;
+
+ error = EI_DFLT_CTX_TO_FD__(ctx, &fd);
+ if (error)
+ return error;
+
+ res = writesocket(fd, buf, *len);
+ if (MEANS_SOCKET_ERROR(res))
+ return get_error();
+ *len = res;
+ return 0;
+}
+
+static int tcp_read(void *ctx, char* buf, ssize_t *len, unsigned unused)
+{
+ int error, fd;
+ ssize_t res;
+
+ error = EI_DFLT_CTX_TO_FD__(ctx, &fd);
+ if (error)
+ return error;
+
+ res = readsocket(fd, buf, *len);
+ if (MEANS_SOCKET_ERROR(res))
+ return get_error();
+ *len = res;
+ return 0;
+}
+
+ei_socket_callbacks ei_default_socket_callbacks = {
+ 0, /* flags */
+ tcp_socket,
+ tcp_close,
+ tcp_listen,
+ tcp_accept,
+ tcp_connect,
+#if defined(EI_HAVE_STRUCT_IOVEC__) && defined(HAVE_WRITEV)
+ tcp_writev,
+#else
+ NULL,
+#endif
+ tcp_write,
+ tcp_read,
+
+ tcp_hs_packet_header_size,
+ tcp_handshake_complete,
+ tcp_handshake_complete,
+ tcp_get_fd
+
+};
+
+
+/*
+ *
+ */
+
+#if defined(EI_HAVE_STRUCT_IOVEC__)
+
+int ei_socket_callbacks_have_writev__(ei_socket_callbacks *cbs)
+{
+ return !!cbs->writev;
}
-int ei_writev_fill_t(int fd, const struct iovec *iov, int iovcnt, unsigned ms)
+static int writev_ctx_t__(ei_socket_callbacks *cbs, void *ctx,
+ const struct iovec *iov, int iovcnt,
+ ssize_t *len,
+ unsigned ms)
{
- int i;
- int done;
+ int error;
+
+ if (!(cbs->flags & EI_SCLBK_FLG_FULL_IMPL) && ms != EI_SCLBK_INF_TMO) {
+ int fd;
+
+ error = EI_GET_FD__(cbs, ctx, &fd);
+ if (error)
+ return error;
+
+ do {
+ fd_set writemask;
+ struct timeval tv;
+
+ tv.tv_sec = (time_t) (ms / 1000U);
+ ms %= 1000U;
+ tv.tv_usec = (time_t) (ms * 1000U);
+ FD_ZERO(&writemask);
+ FD_SET(fd,&writemask);
+ switch (select(fd+1, NULL, &writemask, NULL, &tv)) {
+ case -1 :
+ error = get_error();
+ if (error != EINTR)
+ return error;
+ break;
+ case 0:
+ return ETIMEDOUT; /* timeout */
+ default:
+ if (!FD_ISSET(fd, &writemask)) {
+ return EIO; /* Other error */
+ }
+ error = 0;
+ break;
+ }
+ } while (error == EINTR);
+ }
+ do {
+ error = cbs->writev(ctx, (const void *) iov, iovcnt, len, ms);
+ } while (error == EINTR);
+ return error;
+}
+
+int ei_writev_fill_ctx_t__(ei_socket_callbacks *cbs, void *ctx,
+ const struct iovec *iov, int iovcnt,
+ ssize_t *len,
+ unsigned ms)
+{
+ ssize_t i, done, sum;
struct iovec *iov_base = NULL;
struct iovec *current_iov;
int current_iovcnt;
- int sum;
+ int fd, error;
+ int basic;
+
+ if (!cbs->writev)
+ return ENOTSUP;
+
+ error = EI_GET_FD__(cbs, ctx, &fd);
+ if (error)
+ return error;
+ basic = !(cbs->flags & EI_SCLBK_FLG_FULL_IMPL);
+
for (sum = 0, i = 0; i < iovcnt; ++i) {
sum += iov[i].iov_len;
}
- if (ms != 0U) {
+ if (basic && ms != 0U) {
SET_NONBLOCKING(fd);
}
current_iovcnt = iovcnt;
current_iov = (struct iovec *) iov;
done = 0;
for (;;) {
- i = ei_writev_t(fd, current_iov, current_iovcnt, ms);
- if (i <= 0) { /* ei_writev_t should always return at least 1 */
+
+ error = writev_ctx_t__(cbs, ctx, current_iov, current_iovcnt, &i, ms);
+ if (error) {
+ *len = done;
if (ms != 0U) {
SET_BLOCKING(fd);
}
if (iov_base != NULL) {
free(iov_base);
}
- return (i);
- }
+ return error;
+ }
done += i;
if (done < sum) {
if (iov_base == NULL) {
iov_base = malloc(sizeof(struct iovec) * iovcnt);
if (iov_base == NULL) {
- return -1;
+ *len = done;
+ return ENOMEM;
}
memcpy(iov_base, iov, sizeof(struct iovec) * iovcnt);
current_iov = iov_base;
@@ -189,195 +478,383 @@ int ei_writev_fill_t(int fd, const struct iovec *iov, int iovcnt, unsigned
break;
}
}
- if (ms != 0U) {
+ if (basic && ms != 0U) {
SET_BLOCKING(fd);
}
if (iov_base != NULL) {
free(iov_base);
}
- return (sum);
+ *len = done;
+ return 0;
}
+#endif /* defined(EI_HAVE_STRUCT_IOVEC__) */
-#endif
-
-int ei_connect_t(int fd, void *sinp, int sin_siz, unsigned ms)
+int ei_socket_ctx__(ei_socket_callbacks *cbs, void **ctx, void *setup_ctx)
{
int res;
- int error;
- int s_res;
- struct timeval tv;
- fd_set writefds;
- fd_set exceptfds;
-
- if (ms == 0) {
- res = connect(fd, sinp, sin_siz);
- return (res < 0) ? -1 : res;
- } else {
- SET_NONBLOCKING(fd);
- res = connect(fd, sinp, sin_siz);
- error = GET_SOCKET_ERROR();
- SET_BLOCKING(fd);
- if (!MEANS_SOCKET_ERROR(res)) {
- return (res < 0) ? -1 : res;
- } else {
- if (error != ERROR_WOULDBLOCK &&
- error != ERROR_INPROGRESS) {
- return -1;
- } else {
- tv.tv_sec = (long) (ms/1000U);
- ms %= 1000U;
- tv.tv_usec = (long) (ms * 1000U);
- FD_ZERO(&writefds);
- FD_SET(fd,&writefds);
- FD_ZERO(&exceptfds);
- FD_SET(fd,&exceptfds);
- s_res = select(fd + 1, NULL, &writefds, &exceptfds, &tv);
- switch (s_res) {
- case 0:
- return -2;
- case 1:
- if (FD_ISSET(fd, &exceptfds)) {
- return -1;
- } else {
- return 0; /* Connect completed */
- }
- default:
- return -1;
- }
- }
- }
- }
+
+ do {
+ res = cbs->socket(ctx, setup_ctx);
+ } while (res == EINTR);
+
+ return res;
}
-int ei_accept_t(int fd, void *addr, void *addrlen, unsigned ms)
+int ei_close_ctx__(ei_socket_callbacks *cbs, void *ctx)
{
- int res;
- if (ms != 0) {
- fd_set readmask;
- struct timeval tv;
- tv.tv_sec = (time_t) (ms / 1000U);
- ms %= 1000U;
- tv.tv_usec = (time_t) (ms * 1000U);
- FD_ZERO(&readmask);
- FD_SET(fd,&readmask);
- switch (select(fd+1, &readmask, NULL, NULL, &tv)) {
- case -1 :
- return -1; /* i/o error */
- case 0:
- return -2; /* timeout */
- default:
- if (!FD_ISSET(fd, &readmask)) {
- return -1; /* Other error */
- }
- }
- }
- res = (int) accept(fd,addr,addrlen);
- return (res < 0) ? -1 : res;
+ return cbs->close(ctx);
}
+
+int ei_connect_ctx_t__(ei_socket_callbacks *cbs, void *ctx,
+ void *addr, int len, unsigned ms)
+{
+ int res, fd;
+
+ if ((cbs->flags & EI_SCLBK_FLG_FULL_IMPL) || ms == EI_SCLBK_INF_TMO) {
+ do {
+ res = cbs->connect(ctx, addr, len, ms);
+ } while (res == EINTR);
+ return res;
+ }
+
+ res = EI_GET_FD__(cbs, ctx, &fd);
+ if (res)
+ return res;
+ SET_NONBLOCKING(fd);
+ do {
+ res = cbs->connect(ctx, addr, len, 0);
+ } while (res == EINTR);
+ SET_BLOCKING(fd);
+ switch (res) {
+ case EINPROGRESS:
+ case EAGAIN:
+#ifdef EWOULDBLOCK
+#if EWOULDBLOCK != EAGAIN
+ case EWOULDBLOCK:
+#endif
+#endif
+ break;
+ default:
+ return res;
+ }
-static int ei_read_t(int fd, char* buf, int len, unsigned ms)
+ while (1) {
+ struct timeval tv;
+ fd_set writefds;
+ fd_set exceptfds;
+
+ tv.tv_sec = (long) (ms/1000U);
+ ms %= 1000U;
+ tv.tv_usec = (long) (ms * 1000U);
+ FD_ZERO(&writefds);
+ FD_SET(fd,&writefds);
+ FD_ZERO(&exceptfds);
+ FD_SET(fd,&exceptfds);
+ res = select(fd + 1, NULL, &writefds, &exceptfds, &tv);
+ switch (res) {
+ case -1:
+ res = get_error();
+ if (res != EINTR)
+ return res;
+ break;
+ case 0:
+ return ETIMEDOUT;
+ case 1:
+ if (!FD_ISSET(fd, &exceptfds))
+ return 0; /* Connect completed */
+ /* fall through... */
+ default:
+ return EIO;
+ }
+ }
+}
+
+int ei_listen_ctx__(ei_socket_callbacks *cbs, void *ctx,
+ void *adr, int *len, int backlog)
{
int res;
- if (ms != 0) {
- fd_set readmask;
- struct timeval tv;
- tv.tv_sec = (time_t) (ms / 1000U);
- ms %= 1000U;
- tv.tv_usec = (time_t) (ms * 1000U);
- FD_ZERO(&readmask);
- FD_SET(fd,&readmask);
- switch (select(fd+1, &readmask, NULL, NULL, &tv)) {
- case -1 :
- return -1; /* i/o error */
- case 0:
- return -2; /* timeout */
- default:
- if (!FD_ISSET(fd, &readmask)) {
- return -1; /* Other error */
- }
- }
+
+ do {
+ res = cbs->listen(ctx, adr, len, backlog);
+ } while (res == EINTR);
+ return res;
+}
+
+int ei_accept_ctx_t__(ei_socket_callbacks *cbs, void **ctx,
+ void *addr, int *len, unsigned ms)
+{
+ int error;
+
+ if (!(cbs->flags & EI_SCLBK_FLG_FULL_IMPL) && ms != EI_SCLBK_INF_TMO) {
+ int fd;
+
+ error = EI_GET_FD__(cbs, *ctx, &fd);
+ if (error)
+ return error;
+
+ do {
+ fd_set readmask;
+ struct timeval tv;
+
+ tv.tv_sec = (time_t) (ms / 1000U);
+ ms %= 1000U;
+ tv.tv_usec = (time_t) (ms * 1000U);
+ FD_ZERO(&readmask);
+ FD_SET(fd,&readmask);
+ switch (select(fd+1, &readmask, NULL, NULL, &tv)) {
+ case -1 :
+ error = get_error();
+ if (error != EINTR)
+ return error;
+ break;
+ case 0:
+ return ETIMEDOUT; /* timeout */
+ default:
+ if (!FD_ISSET(fd, &readmask)) {
+ return EIO; /* Other error */
+ }
+ error = 0;
+ break;
+ }
+ } while (error == EINTR);
}
- res = readsocket(fd, buf, len);
- return (res < 0) ? -1 : res;
+ do {
+ error = cbs->accept(ctx, addr, len, ms);
+ } while (error == EINTR);
+ return error;
}
-static int ei_write_t(int fd, const char* buf, int len, unsigned ms)
+static int read_ctx_t__(ei_socket_callbacks *cbs, void *ctx,
+ char* buf, ssize_t *len, unsigned ms)
{
- int res;
- if (ms != 0) {
- fd_set writemask;
- struct timeval tv;
- tv.tv_sec = (time_t) (ms / 1000U);
- ms %= 1000U;
- tv.tv_usec = (time_t) (ms * 1000U);
- FD_ZERO(&writemask);
- FD_SET(fd,&writemask);
- switch (select(fd+1, NULL, &writemask, NULL, &tv)) {
- case -1 :
- return -1; /* i/o error */
- case 0:
- return -2; /* timeout */
- default:
- if (!FD_ISSET(fd, &writemask)) {
- return -1; /* Other error */
- }
- }
+ int error;
+
+ if (!(cbs->flags & EI_SCLBK_FLG_FULL_IMPL) && ms != EI_SCLBK_INF_TMO) {
+ int fd;
+
+ error = EI_GET_FD__(cbs, ctx, &fd);
+ if (error)
+ return error;
+
+ do {
+ fd_set readmask;
+ struct timeval tv;
+
+ tv.tv_sec = (time_t) (ms / 1000U);
+ ms %= 1000U;
+ tv.tv_usec = (time_t) (ms * 1000U);
+ FD_ZERO(&readmask);
+ FD_SET(fd,&readmask);
+ switch (select(fd+1, &readmask, NULL, NULL, &tv)) {
+ case -1 :
+ error = get_error();
+ if (error != EINTR)
+ return error;
+ break;
+ case 0:
+ return ETIMEDOUT; /* timeout */
+ default:
+ if (!FD_ISSET(fd, &readmask)) {
+ return EIO; /* Other error */
+ }
+ error = 0;
+ break;
+ }
+ } while (error == EINTR);
+ }
+ do {
+ error = cbs->read(ctx, buf, len, ms);
+ } while (error == EINTR);
+ return error;
+}
+
+static int write_ctx_t__(ei_socket_callbacks *cbs, void *ctx, const char* buf, ssize_t *len, unsigned ms)
+{
+ int error;
+
+ if (!(cbs->flags & EI_SCLBK_FLG_FULL_IMPL) && ms != EI_SCLBK_INF_TMO) {
+ int fd;
+
+ error = EI_GET_FD__(cbs, ctx, &fd);
+ if (error)
+ return error;
+
+ do {
+ fd_set writemask;
+ struct timeval tv;
+
+ tv.tv_sec = (time_t) (ms / 1000U);
+ ms %= 1000U;
+ tv.tv_usec = (time_t) (ms * 1000U);
+ FD_ZERO(&writemask);
+ FD_SET(fd,&writemask);
+ switch (select(fd+1, NULL, &writemask, NULL, &tv)) {
+ case -1 :
+ error = get_error();
+ if (error != EINTR)
+ return error;
+ break;
+ case 0:
+ return ETIMEDOUT; /* timeout */
+ default:
+ if (!FD_ISSET(fd, &writemask)) {
+ return EIO; /* Other error */
+ }
+ error = 0;
+ break;
+ }
+ } while (error == EINTR);
}
- res = writesocket(fd, buf, len);
- return (res < 0) ? -1 : res;
+ do {
+ error = cbs->write(ctx, buf, len, ms);
+ } while (error == EINTR);
+ return error;
}
/*
* Fill buffer, return buffer length, 0 for EOF, < 0 (and sets errno)
* for error. */
-int ei_read_fill_t(int fd, char* buf, int len, unsigned ms)
+int ei_read_fill_ctx_t__(ei_socket_callbacks *cbs, void *ctx, char* buf, ssize_t *len, unsigned ms)
{
- int i,got=0;
+ ssize_t got = 0;
+ ssize_t want = *len;
do {
- i = ei_read_t(fd, buf+got, len-got, ms);
- if (i <= 0)
- return (i);
- got += i;
- } while (got < len);
- return (len);
-
+ ssize_t read_len = want-got;
+ int error;
+
+ do {
+ error = read_ctx_t__(cbs, ctx, buf+got, &read_len, ms);
+ } while (error == EINTR);
+ if (error)
+ return error;
+ if (read_len == 0) {
+ *len = got;
+ return 0;
+ }
+ got += read_len;
+ } while (got < want);
+
+ *len = got;
+ return 0;
} /* read_fill */
-int ei_read_fill(int fd, char* buf, int len)
+int ei_read_fill_ctx__(ei_socket_callbacks *cbs, void *ctx, char* buf, ssize_t *len)
{
- return ei_read_fill_t(fd, buf, len, 0);
+ return ei_read_fill_ctx_t__(cbs, ctx, buf, len, 0);
}
/* write entire buffer on fd or fail (setting errno)
*/
-int ei_write_fill_t(int fd, const char *buf, int len, unsigned ms)
+int ei_write_fill_ctx_t__(ei_socket_callbacks *cbs, void *ctx, const char *buf, ssize_t *len, unsigned ms)
{
- int i,done=0;
- if (ms != 0U) {
+ ssize_t tot = *len, done = 0;
+ int error, fd = -1, basic = !(cbs->flags & EI_SCLBK_FLG_FULL_IMPL);
+
+ if (basic && ms != 0U) {
+ error = EI_GET_FD__(cbs, ctx, &fd);
+ if (error)
+ return error;
SET_NONBLOCKING(fd);
}
do {
- i = ei_write_t(fd, buf+done, len-done, ms);
- if (i <= 0) {
- if (ms != 0U) {
+ ssize_t write_len = tot-done;
+ error = write_ctx_t__(cbs, ctx, buf+done, &write_len, ms);
+ if (error) {
+ *len = done;
+ if (basic && ms != 0U) {
SET_BLOCKING(fd);
}
- return (i);
+ return error;
}
- done += i;
- } while (done < len);
- if (ms != 0U) {
+ done += write_len;
+ } while (done < tot);
+ if (basic && ms != 0U) {
SET_BLOCKING(fd);
}
- return (len);
+ *len = done;
+ return 0;
+}
+
+int ei_write_fill_ctx__(ei_socket_callbacks *cbs, void *ctx, const char *buf, ssize_t *len)
+{
+ return ei_write_fill_ctx_t__(cbs, ctx, buf, len, 0);
+}
+
+/*
+ * Internal API for TCP/IPv4
+ */
+
+int ei_connect_t__(int fd, void *addr, int len, unsigned ms)
+{
+ return ei_connect_ctx_t__(&ei_default_socket_callbacks, EI_FD_AS_CTX__(fd),
+ addr, len, ms);
}
-int ei_write_fill(int fd, const char *buf, int len)
+int ei_socket__(int *fd)
{
- return ei_write_fill_t(fd, buf, len, 0);
+ void *ctx;
+ int error = ei_socket_ctx__(&ei_default_socket_callbacks, &ctx, NULL);
+ if (error)
+ return error;
+ return EI_GET_FD__(&ei_default_socket_callbacks, ctx, fd);
}
+int ei_close__(int fd)
+{
+ return ei_close_ctx__(&ei_default_socket_callbacks, EI_FD_AS_CTX__(fd));
+}
+
+int ei_listen__(int fd, void *adr, int *len, int backlog)
+{
+ return ei_listen_ctx__(&ei_default_socket_callbacks, EI_FD_AS_CTX__(fd),
+ adr, len, backlog);
+}
+
+int ei_accept_t__(int *fd, void *addr, int *len, unsigned ms)
+{
+ void *ctx = EI_FD_AS_CTX__(*fd);
+ int error = ei_accept_ctx_t__(&ei_default_socket_callbacks, &ctx,
+ addr, len, ms);
+ if (error)
+ return error;
+ return EI_GET_FD__(&ei_default_socket_callbacks, ctx, fd);
+}
+
+int ei_read_fill_t__(int fd, char* buf, ssize_t *len, unsigned ms)
+{
+ return ei_read_fill_ctx_t__(&ei_default_socket_callbacks, EI_FD_AS_CTX__(fd),
+ buf, len, ms);
+}
+
+int ei_read_fill__(int fd, char* buf, ssize_t *len)
+{
+ return ei_read_fill_ctx_t__(&ei_default_socket_callbacks, EI_FD_AS_CTX__(fd),
+ buf, len, 0);
+}
+
+int ei_write_fill_t__(int fd, const char *buf, ssize_t *len, unsigned ms)
+{
+ return ei_write_fill_ctx_t__(&ei_default_socket_callbacks, EI_FD_AS_CTX__(fd),
+ buf, len, ms);
+}
+
+int ei_write_fill__(int fd, const char *buf, ssize_t *len)
+{
+ return ei_write_fill_ctx_t__(&ei_default_socket_callbacks, EI_FD_AS_CTX__(fd),
+ buf, len, 0);
+}
+
+#if defined(EI_HAVE_STRUCT_IOVEC__) && defined(HAVE_WRITEV)
+
+int ei_writev_fill_t__(int fd, const struct iovec *iov, int iovcnt, ssize_t *len, unsigned ms)
+{
+ return ei_writev_fill_ctx_t__(&ei_default_socket_callbacks, EI_FD_AS_CTX__(fd),
+ iov, iovcnt, len, ms);
+}
+
+#endif
+
diff --git a/lib/erl_interface/src/misc/ei_portio.h b/lib/erl_interface/src/misc/ei_portio.h
index bded811a35..a84b5ca09c 100644
--- a/lib/erl_interface/src/misc/ei_portio.h
+++ b/lib/erl_interface/src/misc/ei_portio.h
@@ -21,21 +21,94 @@
*/
#ifndef _EI_PORTIO_H
#define _EI_PORTIO_H
-#if !defined(__WIN32__) && !defined(VXWORKS)
-#ifdef HAVE_WRITEV
+
+#undef EI_HAVE_STRUCT_IOVEC__
+#if !defined(__WIN32__) && !defined(VXWORKS) && defined(HAVE_SYS_UIO_H)
/* Declaration of struct iovec *iov should be visible in this scope. */
-#include <sys/uio.h>
+# include <sys/uio.h>
+# define EI_HAVE_STRUCT_IOVEC__
#endif
+
+/*
+ * Internal API. Should not be used outside of the erl_interface application...
+ */
+
+int ei_socket_ctx__(ei_socket_callbacks *cbs, void **ctx, void *setup);
+int ei_close_ctx__(ei_socket_callbacks *cbs, void *ctx);
+int ei_listen_ctx__(ei_socket_callbacks *cbs, void *ctx, void *adr, int *len, int backlog);
+int ei_accept_ctx_t__(ei_socket_callbacks *cbs, void **ctx, void *addr, int *len, unsigned ms);
+int ei_connect_ctx_t__(ei_socket_callbacks *cbs, void *ctx, void *addr, int len, unsigned ms);
+int ei_read_fill_ctx__(ei_socket_callbacks *cbs, void *ctx, char* buf, ssize_t *len);
+int ei_write_fill_ctx__(ei_socket_callbacks *cbs, void *ctx, const char *buf, ssize_t *len);
+int ei_read_fill_ctx_t__(ei_socket_callbacks *cbs, void *ctx, char* buf, ssize_t *len, unsigned ms);
+int ei_write_fill_ctx_t__(ei_socket_callbacks *cbs, void *ctx, const char *buf, ssize_t *len, unsigned ms);
+#if defined(EI_HAVE_STRUCT_IOVEC__)
+int ei_writev_fill_ctx_t__(ei_socket_callbacks *cbs, void *ctx, const struct iovec *iov, int iovcnt, ssize_t *len, unsigned ms);
+int ei_socket_callbacks_have_writev__(ei_socket_callbacks *cbs);
#endif
-int ei_accept_t(int fd, void *addr, void *addrlen, unsigned ms);
-int ei_connect_t(int fd, void *sinp, int sin_siz, unsigned ms);
-int ei_read_fill(int fd, char* buf, int len);
-int ei_write_fill(int fd, const char *buf, int len);
-int ei_read_fill_t(int fd, char* buf, int len, unsigned ms);
-int ei_write_fill_t(int fd, const char *buf, int len, unsigned ms);
-#ifdef HAVE_WRITEV
-int ei_writev_fill_t(int fd, const struct iovec *iov, int iovcnt, unsigned ms);
+ei_socket_callbacks ei_default_socket_callbacks;
+
+#define EI_FD_AS_CTX__(FD) \
+ ((void *) (long) (FD))
+
+#define EI_DFLT_CTX_TO_FD__(CTX, FD) \
+ ((int) (long) (CTX) < 0 \
+ ? EBADF \
+ : (*(FD) = (int) (long) (CTX), 0))
+
+#define EI_GET_FD__(CBS, CTX, FD) \
+ ((CBS) == &ei_default_socket_callbacks \
+ ? EI_DFLT_CTX_TO_FD__((CTX), FD) \
+ : (CBS)->get_fd((CTX), (FD)))
+
+extern int ei_plugin_socket_impl__;
+
+#if !defined(_REENTRANT)
+
+#define EI_HAVE_PLUGIN_SOCKET_IMPL__ \
+ ei_plugin_socket_impl__
+#define EI_SET_HAVE_PLUGIN_SOCKET_IMPL__ \
+ ei_plugin_socket_impl__ = 1
+
+#elif ((ETHR_HAVE___atomic_load_n & SIZEOF_INT) \
+ && (ETHR_HAVE___atomic_store_n & SIZEOF_INT))
+
+#define EI_HAVE_PLUGIN_SOCKET_IMPL__ \
+ __atomic_load_n(&ei_plugin_socket_impl__, __ATOMIC_ACQUIRE)
+#define EI_SET_HAVE_PLUGIN_SOCKET_IMPL__ \
+ __atomic_store_n(&ei_plugin_socket_impl__, 1, __ATOMIC_RELEASE)
+
+#else
+
+/* No gcc atomics; always lookup using ei_get_cbs_ctx()... */
+#define EI_HAVE_PLUGIN_SOCKET_IMPL__ 0
+#define EI_SET_HAVE_PLUGIN_SOCKET_IMPL__ (void) 0
+
+#endif
+
+#define EI_GET_CBS_CTX__(CBS, CTX, FD) \
+ (EI_HAVE_PLUGIN_SOCKET_IMPL__ \
+ ? ei_get_cbs_ctx__((CBS), (CTX), (FD)) \
+ : ((FD) < 0 \
+ ? EBADF \
+ : (*(CBS) = &ei_default_socket_callbacks, \
+ *(CTX) = EI_FD_AS_CTX__((FD)), \
+ 0)))
+/*
+ * The following uses our own TCP/IPv4 socket implementation...
+ */
+int ei_socket__(int *fd);
+int ei_close__(int fd);
+int ei_listen__(int fd, void *adr, int *len, int backlog);
+int ei_accept_t__(int *fd, void *addr, int *len, unsigned ms);
+int ei_connect_t__(int fd, void *addr, int len, unsigned ms);
+int ei_read_fill__(int fd, char* buf, ssize_t *len);
+int ei_write_fill__(int fd, const char *buf, ssize_t *len);
+int ei_read_fill_t__(int fd, char* buf, ssize_t *len, unsigned ms);
+int ei_write_fill_t__(int fd, const char *buf, ssize_t *len, unsigned ms);
+#if defined(EI_HAVE_STRUCT_IOVEC__) && defined(HAVE_WRITEV)
+int ei_writev_fill_t__(int fd, const struct iovec *iov, int iovcnt, ssize_t *len, unsigned ms);
#endif
#endif /* _EI_PORTIO_H */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 01:10:27 +0000