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- /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
- /*
- * The contents of this file are subject to the Netscape Public License
- * Version 1.0 (the "NPL"); you may not use this file except in
- * compliance with the NPL. You may obtain a copy of the NPL at
- * http://www.mozilla.org/NPL/
- *
- * Software distributed under the NPL is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
- * for the specific language governing rights and limitations under the
- * NPL.
- *
- * The Initial Developer of this code under the NPL is Netscape
- * Communications Corporation. Portions created by Netscape are
- * Copyright (C) 1998 Netscape Communications Corporation. All Rights
- * Reserved.
- */
-
- #include "primpl.h"
-
- #ifdef XP_UNIX
- #include <fcntl.h>
- #endif
- #include <string.h>
-
- #if defined(SVR4) || defined(SUNOS4)
- /* To pick up FIONREAD */
- #include <sys/filio.h>
- #endif
-
- /************************************************************************/
-
- static PRInt32 PR_CALLBACK SocketWritev(PRFileDesc *fd, PRIOVec *iov, PRInt32 iov_size,
- PRIntervalTime timeout)
- {
- PRThread *me = _PR_MD_CURRENT_THREAD();
- int w = 0;
- PRIOVec *tmp_iov = NULL;
- int tmp_out;
- int index, iov_cnt;
- int count=0, sz = 0; /* 'count' is the return value. */
- #if defined(XP_UNIX)
- struct timeval tv, *tvp;
- fd_set wd;
-
- FD_ZERO(&wd);
- if (timeout == PR_INTERVAL_NO_TIMEOUT)
- tvp = NULL;
- else if (timeout != PR_INTERVAL_NO_WAIT) {
- tv.tv_sec = PR_IntervalToSeconds(timeout);
- tv.tv_usec = PR_IntervalToMicroseconds(
- timeout - PR_SecondsToInterval(tv.tv_sec));
- tvp = &tv;
- }
- #endif
-
- if (_PR_PENDING_INTERRUPT(me)) {
- me->flags &= ~_PR_INTERRUPT;
- PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0);
- return -1;
- }
- if (_PR_IO_PENDING(me)) {
- PR_SetError(PR_IO_PENDING_ERROR, 0);
- return -1;
- }
-
- tmp_iov = (PRIOVec *)PR_CALLOC(iov_size * sizeof(PRIOVec));
- if (!tmp_iov) {
- PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0);
- return -1;
- }
-
- for (index=0; index<iov_size; index++) {
- sz += iov[index].iov_len;
- tmp_iov[index].iov_base = iov[index].iov_base;
- tmp_iov[index].iov_len = iov[index].iov_len;
- }
- iov_cnt = iov_size;
-
- while (sz > 0) {
-
- w = _PR_MD_WRITEV(fd, tmp_iov, iov_cnt, timeout);
- if (w < 0) {
- count = -1;
- break;
- }
- count += w;
- if (fd->secret->nonblocking) {
- break;
- }
- sz -= w;
-
- if (sz > 0) {
- /* find the next unwritten vector */
- for ( index = 0, tmp_out = count;
- tmp_out >= iov[index].iov_len;
- tmp_out -= iov[index].iov_len, index++){;} /* nothing to execute */
-
-
- /* fill in the first partial read */
- tmp_iov[0].iov_base = &(((char *)iov[index].iov_base)[tmp_out]);
- tmp_iov[0].iov_len = iov[index].iov_len - tmp_out;
- index++;
-
- /* copy the remaining vectors */
- for (iov_cnt=1; index<iov_size; iov_cnt++, index++) {
- tmp_iov[iov_cnt].iov_base = iov[index].iov_base;
- tmp_iov[iov_cnt].iov_len = iov[index].iov_len;
- }
- }
- }
-
- if (tmp_iov)
- PR_DELETE(tmp_iov);
- return count;
- }
-
- /************************************************************************/
-
- PR_IMPLEMENT(PRFileDesc *) PR_ImportTCPSocket(PRInt32 osfd)
- {
- PRFileDesc *fd;
-
- fd = PR_AllocFileDesc(osfd, PR_GetTCPMethods());
- if (fd != NULL)
- _PR_MD_MAKE_NONBLOCK(fd);
- else
- _PR_MD_CLOSE_SOCKET(osfd);
- return(fd);
- }
-
- PR_IMPLEMENT(PRFileDesc *) PR_ImportUDPSocket(PRInt32 osfd)
- {
- PRFileDesc *fd;
-
- fd = PR_AllocFileDesc(osfd, PR_GetUDPMethods());
- if (fd != NULL)
- _PR_MD_MAKE_NONBLOCK(fd);
- else
- _PR_MD_CLOSE_SOCKET(osfd);
- return(fd);
- }
-
- static PRStatus PR_CALLBACK SocketConnect(
- PRFileDesc *fd, const PRNetAddr *addr, PRIntervalTime timeout)
- {
- PRInt32 rv; /* Return value of _PR_MD_CONNECT */
- PRThread *me = _PR_MD_CURRENT_THREAD();
-
- if (_PR_PENDING_INTERRUPT(me)) {
- me->flags &= ~_PR_INTERRUPT;
- PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0);
- return PR_FAILURE;
- }
-
- rv = _PR_MD_CONNECT(fd, addr, PR_NETADDR_SIZE(addr), timeout);
- PR_LOG(_pr_io_lm, PR_LOG_MAX, ("connect -> %d", rv));
- if (rv == 0)
- return PR_SUCCESS;
- else
- return PR_FAILURE;
- }
-
- PR_IMPLEMENT(PRStatus) PR_GetConnectStatus(const PRPollDesc *pd)
- {
- PRInt32 osfd;
- PRFileDesc *bottom = pd->fd;
- int err, len;
-
- if (pd->out_flags & PR_POLL_NVAL) {
- PR_SetError(PR_BAD_DESCRIPTOR_ERROR, 0);
- return PR_FAILURE;
- }
- if ((pd->out_flags & (PR_POLL_WRITE | PR_POLL_EXCEPT | PR_POLL_ERR)) == 0) {
- PR_ASSERT(pd->out_flags == 0);
- PR_SetError(PR_IN_PROGRESS_ERROR, 0);
- return PR_FAILURE;
- }
-
- while (bottom->lower != NULL) {
- bottom = bottom->lower;
- }
- osfd = bottom->secret->md.osfd;
-
- #if defined(XP_UNIX)
-
- err = _MD_unix_get_nonblocking_connect_error(osfd);
- if (err != 0) {
- _PR_MD_MAP_CONNECT_ERROR(err);
- return PR_FAILURE;
- }
- return PR_SUCCESS;
-
- #elif defined(WIN32) || defined(WIN16)
-
- if (pd->out_flags & PR_POLL_EXCEPT) {
- #if defined(WIN32)
- /* Note: There is a bug in Win32 WinSock. The sleep circumvents the
- ** bug. See wtc. /s lth.
- */
- Sleep(0);
- #endif /* WIN32 */
- len = sizeof(err);
- if (getsockopt(osfd, (int)SOL_SOCKET, SO_ERROR, (char *) &err, &len)
- == SOCKET_ERROR) {
- _PR_MD_MAP_GETSOCKOPT_ERROR(WSAGetLastError());
- return PR_FAILURE;
- }
- if (err != 0) {
- _PR_MD_MAP_CONNECT_ERROR(err);
- } else {
- PR_SetError(PR_UNKNOWN_ERROR, 0);
- }
- return PR_FAILURE;
- }
-
- PR_ASSERT(pd->out_flags & PR_POLL_WRITE);
- return PR_SUCCESS;
-
- #elif defined(XP_OS2)
-
- if (pd->out_flags & PR_POLL_EXCEPT) {
- len = sizeof(err);
- if (getsockopt(osfd, SOL_SOCKET, SO_ERROR, (char *) &err, &len)
- < 0) {
- _PR_MD_MAP_GETSOCKOPT_ERROR(sock_errno());
- return PR_FAILURE;
- }
- if (err != 0) {
- _PR_MD_MAP_CONNECT_ERROR(err);
- } else {
- PR_SetError(PR_UNKNOWN_ERROR, 0);
- }
- return PR_FAILURE;
- }
-
- PR_ASSERT(pd->out_flags & PR_POLL_WRITE);
- return PR_SUCCESS;
-
- #elif defined(XP_MAC)
-
- err = _MD_mac_get_nonblocking_connect_error(osfd);
- if (err == -1)
- return PR_FAILURE;
- else
- return PR_SUCCESS;
-
- #else
- PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
- return PR_FAILURE;
- #endif
- }
-
- static PRFileDesc* PR_CALLBACK SocketAccept(PRFileDesc *fd, PRNetAddr *addr,
- PRIntervalTime timeout)
- {
- PRInt32 osfd;
- PRFileDesc *fd2;
- PRUint32 al;
- PRThread *me = _PR_MD_CURRENT_THREAD();
- #ifdef WINNT
- PRNetAddr addrCopy;
- #endif
-
- if (_PR_PENDING_INTERRUPT(me)) {
- me->flags &= ~_PR_INTERRUPT;
- PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0);
- return 0;
- }
- if (_PR_IO_PENDING(me)) {
- PR_SetError(PR_IO_PENDING_ERROR, 0);
- return 0;
- }
-
- #ifdef WINNT
- if (addr == NULL) {
- addr = &addrCopy;
- }
- #endif
- al = sizeof(PRNetAddr);
- osfd = _PR_MD_ACCEPT(fd, addr, &al, timeout);
- if (osfd == -1)
- return 0;
-
- fd2 = PR_AllocFileDesc(osfd, PR_GetTCPMethods());
- if (!fd2) {
- _PR_MD_CLOSE_SOCKET(osfd);
- return NULL;
- }
-
- fd2->secret->nonblocking = fd->secret->nonblocking;
- #ifdef WINNT
- fd2->secret->md.io_model_committed = PR_TRUE;
- PR_ASSERT(al == PR_NETADDR_SIZE(addr));
- fd2->secret->md.accepted_socket = PR_TRUE;
- memcpy(&fd2->secret->md.peer_addr, addr, al);
- #endif
-
- /*
- * On some platforms, the new socket created by accept()
- * inherits the nonblocking (or overlapped io) attribute
- * of the listening socket. As an optimization, these
- * platforms can skip the following _PR_MD_MAKE_NONBLOCK
- * call.
- */
- #if !defined(SOLARIS) && !defined(IRIX) && !defined(WINNT)
- _PR_MD_MAKE_NONBLOCK(fd2);
- #endif
-
- PR_ASSERT((NULL == addr) || (PR_NETADDR_SIZE(addr) == al));
- #if defined(_PR_INET6)
- PR_ASSERT((NULL == addr) || (addr->raw.family == AF_INET)
- || (addr->raw.family == AF_INET6));
- #else
- PR_ASSERT((NULL == addr) || (addr->raw.family == AF_INET));
- #endif
-
- return fd2;
- }
-
- #ifdef WINNT
- PR_IMPLEMENT(PRFileDesc*) PR_NTFast_Accept(PRFileDesc *fd, PRNetAddr *addr,
- PRIntervalTime timeout)
- {
- PRInt32 osfd;
- PRFileDesc *fd2;
- PRIntn al;
- PRThread *me = _PR_MD_CURRENT_THREAD();
- PRNetAddr addrCopy;
-
- if (_PR_PENDING_INTERRUPT(me)) {
- me->flags &= ~_PR_INTERRUPT;
- PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0);
- return 0;
- }
- if (_PR_IO_PENDING(me)) {
- PR_SetError(PR_IO_PENDING_ERROR, 0);
- return 0;
- }
-
- if (addr == NULL) {
- addr = &addrCopy;
- }
- al = PR_NETADDR_SIZE(addr);
- osfd = _PR_MD_FAST_ACCEPT(fd, addr, &al, timeout, PR_TRUE, NULL, NULL);
- if (osfd == -1) {
- return 0;
- }
-
- fd2 = PR_AllocFileDesc(osfd, PR_GetTCPMethods());
- if (!fd2) {
- _PR_MD_CLOSE_SOCKET(osfd);
- } else {
- fd2->secret->nonblocking = fd->secret->nonblocking;
- fd2->secret->md.io_model_committed = PR_TRUE;
- PR_ASSERT(al == PR_NETADDR_SIZE(addr));
- fd2->secret->md.accepted_socket = PR_TRUE;
- memcpy(&fd2->secret->md.peer_addr, addr, al);
- }
- return fd2;
- }
- #endif /* WINNT */
-
-
- static PRStatus PR_CALLBACK SocketBind(PRFileDesc *fd, const PRNetAddr *addr)
- {
- PRInt32 result;
- int one = 1;
-
- #if defined(_PR_INET6)
- PR_ASSERT(addr->raw.family == AF_INET || addr->raw.family == AF_INET6);
- #else
- PR_ASSERT(addr->raw.family == AF_INET);
- #endif
-
- #ifdef HAVE_SOCKET_REUSEADDR
- if ( setsockopt (fd->secret->md.osfd, (int)SOL_SOCKET, SO_REUSEADDR,
- (const void *)&one, sizeof(one) ) < 0) {
- return PR_FAILURE;
- }
- #endif
-
- result = _PR_MD_BIND(fd, addr, PR_NETADDR_SIZE(addr));
- if (result < 0) {
- return PR_FAILURE;
- }
- return PR_SUCCESS;
- }
-
- static PRStatus PR_CALLBACK SocketListen(PRFileDesc *fd, PRIntn backlog)
- {
- PRInt32 result;
-
- result = _PR_MD_LISTEN(fd, backlog);
- if (result < 0) {
- return PR_FAILURE;
- }
- return PR_SUCCESS;
- }
-
- static PRStatus PR_CALLBACK SocketShutdown(PRFileDesc *fd, PRIntn how)
- {
- PRInt32 result;
-
- result = _PR_MD_SHUTDOWN(fd, how);
- if (result < 0) {
- return PR_FAILURE;
- }
- return PR_SUCCESS;
- }
-
- static PRInt32 PR_CALLBACK SocketRecv(PRFileDesc *fd, void *buf, PRInt32 amount, PRIntn flags,
- PRIntervalTime timeout)
- {
- PRInt32 rv;
- PRThread *me = _PR_MD_CURRENT_THREAD();
-
- if (_PR_PENDING_INTERRUPT(me)) {
- me->flags &= ~_PR_INTERRUPT;
- PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0);
- return -1;
- }
- if (_PR_IO_PENDING(me)) {
- PR_SetError(PR_IO_PENDING_ERROR, 0);
- return -1;
- }
-
- PR_LOG(_pr_io_lm, PR_LOG_MAX, ("recv: fd=%p osfd=%d buf=%p amount=%d",
- fd, fd->secret->md.osfd, buf, amount));
- rv = _PR_MD_RECV(fd, buf, amount, flags, timeout);
- PR_LOG(_pr_io_lm, PR_LOG_MAX, ("recv -> %d, error = %d, os error = %d",
- rv, PR_GetError(), PR_GetOSError()));
- return rv;
- }
-
- static PRInt32 PR_CALLBACK SocketRead(PRFileDesc *fd, void *buf, PRInt32 amount)
- {
- return SocketRecv(fd, buf, amount, 0, PR_INTERVAL_NO_TIMEOUT);
- }
-
- static PRInt32 PR_CALLBACK SocketSend(PRFileDesc *fd, const void *buf, PRInt32 amount,
- PRIntn flags, PRIntervalTime timeout)
- {
- PRInt32 temp, count;
- PRThread *me = _PR_MD_CURRENT_THREAD();
-
- if (_PR_PENDING_INTERRUPT(me)) {
- me->flags &= ~_PR_INTERRUPT;
- PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0);
- return -1;
- }
- if (_PR_IO_PENDING(me)) {
- PR_SetError(PR_IO_PENDING_ERROR, 0);
- return -1;
- }
-
- count = 0;
- while (amount > 0) {
- PR_LOG(_pr_io_lm, PR_LOG_MAX,
- ("send: fd=%p osfd=%d buf=%p amount=%d",
- fd, fd->secret->md.osfd, buf, amount));
- temp = _PR_MD_SEND(fd, buf, amount, flags, timeout);
- if (temp < 0) {
- count = -1;
- break;
- }
-
- count += temp;
- if (fd->secret->nonblocking) {
- break;
- }
- buf = (const void*) ((const char*)buf + temp);
-
- amount -= temp;
- }
- PR_LOG(_pr_io_lm, PR_LOG_MAX, ("send -> %d", count));
- return count;
- }
-
- static PRInt32 PR_CALLBACK SocketWrite(PRFileDesc *fd, const void *buf, PRInt32 amount)
- {
- return SocketSend(fd, buf, amount, 0, PR_INTERVAL_NO_TIMEOUT);
- }
-
- static PRStatus PR_CALLBACK SocketClose(PRFileDesc *fd)
- {
- PRInt32 rv;
-
- if (!fd || fd->secret->state != _PR_FILEDESC_OPEN) {
- PR_SetError(PR_BAD_DESCRIPTOR_ERROR, 0);
- return PR_FAILURE;
- }
-
- fd->secret->state = _PR_FILEDESC_CLOSED;
-
- rv = _PR_MD_CLOSE_SOCKET(fd->secret->md.osfd);
- PR_FreeFileDesc(fd);
- if (rv < 0) {
- return PR_FAILURE;
- }
- return PR_SUCCESS;
- }
-
- static PRInt32 PR_CALLBACK SocketAvailable(PRFileDesc *fd)
- {
- PRInt32 rv;
- rv = _PR_MD_SOCKETAVAILABLE(fd);
- return rv;
- }
-
- static PRInt64 PR_CALLBACK SocketAvailable64(PRFileDesc *fd)
- {
- PRInt64 rv;
- LL_I2L(rv, _PR_MD_SOCKETAVAILABLE(fd));
- return rv;
- }
-
- static PRStatus PR_CALLBACK SocketSync(PRFileDesc *fd)
- {
- #if defined(XP_MAC)
- #pragma unused (fd)
- #endif
-
- return PR_SUCCESS;
- }
-
- static PRInt32 PR_CALLBACK SocketSendTo(
- PRFileDesc *fd, const void *buf, PRInt32 amount,
- PRIntn flags, const PRNetAddr *addr, PRIntervalTime timeout)
- {
- PRInt32 temp, count;
- PRThread *me = _PR_MD_CURRENT_THREAD();
-
- if (_PR_PENDING_INTERRUPT(me)) {
- me->flags &= ~_PR_INTERRUPT;
- PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0);
- return -1;
- }
- if (_PR_IO_PENDING(me)) {
- PR_SetError(PR_IO_PENDING_ERROR, 0);
- return -1;
- }
-
- #if defined(_PR_INET6)
- PR_ASSERT(addr->raw.family == AF_INET || addr->raw.family == AF_INET6);
- #else
- PR_ASSERT(addr->raw.family == AF_INET);
- #endif
-
- count = 0;
- while (amount > 0) {
- temp = _PR_MD_SENDTO(fd, buf, amount, flags,
- addr, PR_NETADDR_SIZE(addr), timeout);
- if (temp < 0) {
- count = -1;
- break;
- }
- count += temp;
- if (fd->secret->nonblocking) {
- break;
- }
- buf = (const void*) ((const char*)buf + temp);
- amount -= temp;
- }
- return count;
- }
-
- static PRInt32 PR_CALLBACK SocketRecvFrom(PRFileDesc *fd, void *buf, PRInt32 amount,
- PRIntn flags, PRNetAddr *addr, PRIntervalTime timeout)
- {
- PRInt32 rv;
- PRUint32 al;
- PRThread *me = _PR_MD_CURRENT_THREAD();
-
- if (_PR_PENDING_INTERRUPT(me)) {
- me->flags &= ~_PR_INTERRUPT;
- PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0);
- return -1;
- }
- if (_PR_IO_PENDING(me)) {
- PR_SetError(PR_IO_PENDING_ERROR, 0);
- return -1;
- }
-
- al = sizeof(PRNetAddr);
- rv = _PR_MD_RECVFROM(fd, buf, amount, flags, addr, &al, timeout);
- return rv;
- }
-
- static PRInt32 PR_CALLBACK SocketAcceptRead(PRFileDesc *sd, PRFileDesc **nd,
- PRNetAddr **raddr, void *buf, PRInt32 amount,
- PRIntervalTime timeout)
- {
- PRInt32 rv;
- PRThread *me = _PR_MD_CURRENT_THREAD();
-
- if (_PR_PENDING_INTERRUPT(me)) {
- me->flags &= ~_PR_INTERRUPT;
- PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0);
- return -1;
- }
- if (_PR_IO_PENDING(me)) {
- PR_SetError(PR_IO_PENDING_ERROR, 0);
- return -1;
- }
- *nd = NULL;
-
- #if defined(WINNT)
- {
- PRInt32 newSock;
- PRNetAddr *raddrCopy;
-
- if (raddr == NULL) {
- raddr = &raddrCopy;
- }
- rv = _PR_MD_ACCEPT_READ(sd, &newSock, raddr, buf, amount, timeout);
- if (rv < 0) {
- rv = -1;
- } else {
- /* Successfully accepted and read; create the new PRFileDesc */
- *nd = PR_AllocFileDesc(newSock, PR_GetTCPMethods());
- if (*nd == 0) {
- _PR_MD_CLOSE_SOCKET(newSock);
- /* PR_AllocFileDesc() has invoked PR_SetError(). */
- rv = -1;
- } else {
- (*nd)->secret->md.io_model_committed = PR_TRUE;
- (*nd)->secret->md.accepted_socket = PR_TRUE;
- memcpy(&(*nd)->secret->md.peer_addr, *raddr,
- PR_NETADDR_SIZE(*raddr));
- }
- }
- }
- #else
- rv = _PR_EmulateAcceptRead(sd, nd, raddr, buf, amount, timeout);
- #endif
- return rv;
- }
-
- #ifdef WINNT
- PR_IMPLEMENT(PRInt32) PR_NTFast_AcceptRead(PRFileDesc *sd, PRFileDesc **nd,
- PRNetAddr **raddr, void *buf, PRInt32 amount,
- PRIntervalTime timeout)
- {
- PRInt32 rv;
- PRInt32 newSock;
- PRThread *me = _PR_MD_CURRENT_THREAD();
- PRNetAddr *raddrCopy;
-
- if (_PR_PENDING_INTERRUPT(me)) {
- me->flags &= ~_PR_INTERRUPT;
- PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0);
- return -1;
- }
- if (_PR_IO_PENDING(me)) {
- PR_SetError(PR_IO_PENDING_ERROR, 0);
- return -1;
- }
- *nd = NULL;
-
- if (raddr == NULL) {
- raddr = &raddrCopy;
- }
- rv = _PR_MD_FAST_ACCEPT_READ(sd, &newSock, raddr, buf, amount,
- timeout, PR_TRUE, NULL, NULL);
- if (rv < 0) {
- rv = -1;
- } else {
- /* Successfully accepted and read; create the new PRFileDesc */
- *nd = PR_AllocFileDesc(newSock, PR_GetTCPMethods());
- if (*nd == 0) {
- _PR_MD_CLOSE_SOCKET(newSock);
- /* PR_AllocFileDesc() has invoked PR_SetError(). */
- rv = -1;
- } else {
- (*nd)->secret->md.io_model_committed = PR_TRUE;
- (*nd)->secret->md.accepted_socket = PR_TRUE;
- memcpy(&(*nd)->secret->md.peer_addr, *raddr,
- PR_NETADDR_SIZE(*raddr));
- }
- }
- return rv;
- }
-
- PR_IMPLEMENT(PRInt32) PR_NTFast_AcceptRead_WithTimeoutCallback(
- PRFileDesc *sd, PRFileDesc **nd,
- PRNetAddr **raddr, void *buf, PRInt32 amount,
- PRIntervalTime timeout,
- _PR_AcceptTimeoutCallback callback,
- void *callbackArg)
- {
- PRInt32 rv;
- PRInt32 newSock;
- PRThread *me = _PR_MD_CURRENT_THREAD();
- PRNetAddr *raddrCopy;
-
- if (_PR_PENDING_INTERRUPT(me)) {
- me->flags &= ~_PR_INTERRUPT;
- PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0);
- return -1;
- }
- if (_PR_IO_PENDING(me)) {
- PR_SetError(PR_IO_PENDING_ERROR, 0);
- return -1;
- }
- *nd = NULL;
-
- if (raddr == NULL) {
- raddr = &raddrCopy;
- }
- rv = _PR_MD_FAST_ACCEPT_READ(sd, &newSock, raddr, buf, amount,
- timeout, PR_TRUE, callback, callbackArg);
- if (rv < 0) {
- rv = -1;
- } else {
- /* Successfully accepted and read; create the new PRFileDesc */
- *nd = PR_AllocFileDesc(newSock, PR_GetTCPMethods());
- if (*nd == 0) {
- _PR_MD_CLOSE_SOCKET(newSock);
- /* PR_AllocFileDesc() has invoked PR_SetError(). */
- rv = -1;
- } else {
- (*nd)->secret->md.io_model_committed = PR_TRUE;
- (*nd)->secret->md.accepted_socket = PR_TRUE;
- memcpy(&(*nd)->secret->md.peer_addr, *raddr,
- PR_NETADDR_SIZE(*raddr));
- }
- }
- return rv;
- }
- #endif /* WINNT */
-
- #ifdef WINNT
- PR_IMPLEMENT(void)
- PR_NTFast_UpdateAcceptContext(PRFileDesc *socket, PRFileDesc *acceptSocket)
- {
- _PR_MD_UPDATE_ACCEPT_CONTEXT(
- socket->secret->md.osfd, acceptSocket->secret->md.osfd);
- }
- #endif /* WINNT */
-
- static PRInt32 PR_CALLBACK SocketTransmitFile(PRFileDesc *sd, PRFileDesc *fd,
- const void *headers, PRInt32 hlen, PRTransmitFileFlags flags,
- PRIntervalTime timeout)
- {
- PRInt32 rv;
- PRThread *me = _PR_MD_CURRENT_THREAD();
-
- if (_PR_PENDING_INTERRUPT(me)) {
- me->flags &= ~_PR_INTERRUPT;
- PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0);
- return -1;
- }
- if (_PR_IO_PENDING(me)) {
- PR_SetError(PR_IO_PENDING_ERROR, 0);
- return -1;
- }
- #if defined(WINNT)
- rv = _PR_MD_TRANSMITFILE(
- sd, fd,
- headers, hlen, flags, timeout);
- if (rv < 0) {
- rv = -1;
- }
- if (flags & PR_TRANSMITFILE_CLOSE_SOCKET) {
- /*
- * This should be kept the same as SocketClose, except
- * that _PR_MD_CLOSE_SOCKET(sd->secret->md.osfd) should
- * not be called because the socket will be recycled.
- */
- sd->secret->state = _PR_FILEDESC_CLOSED;
- PR_FreeFileDesc(sd);
- }
- #else
- #if defined(XP_UNIX)
- /*
- * On HPUX11, we could call _PR_HPUXTransmitFile(), but that
- * would require that we not override the malloc() functions.
- */
- rv = _PR_UnixTransmitFile(sd, fd, headers, hlen, flags, timeout);
- #else /* XP_UNIX */
- rv = _PR_EmulateTransmitFile(sd, fd, headers, hlen, flags,
- timeout);
- #endif /* XP_UNIX */
- #endif /* WINNT */
-
- return rv;
- }
-
- static PRStatus PR_CALLBACK SocketGetName(PRFileDesc *fd, PRNetAddr *addr)
- {
- PRInt32 result;
- PRUint32 addrlen;
-
- addrlen = sizeof(PRNetAddr);
- result = _PR_MD_GETSOCKNAME(fd, addr, &addrlen);
- if (result < 0) {
- return PR_FAILURE;
- }
- PR_ASSERT(addrlen == PR_NETADDR_SIZE(addr));
- #if defined(_PR_INET6)
- PR_ASSERT(addr->raw.family == AF_INET || addr->raw.family == AF_INET6);
- #else
- PR_ASSERT(addr->raw.family == AF_INET);
- #endif
- return PR_SUCCESS;
- }
-
- static PRStatus PR_CALLBACK SocketGetPeerName(PRFileDesc *fd, PRNetAddr *addr)
- {
- PRInt32 result;
- PRUint32 addrlen;
-
- addrlen = sizeof(PRNetAddr);
- result = _PR_MD_GETPEERNAME(fd, addr, &addrlen);
- if (result < 0) {
- return PR_FAILURE;
- }
- PR_ASSERT(addrlen == PR_NETADDR_SIZE(addr));
- #if defined(_PR_INET6)
- PR_ASSERT(addr->raw.family == AF_INET || addr->raw.family == AF_INET6);
- #else
- PR_ASSERT(addr->raw.family == AF_INET);
- #endif
- return PR_SUCCESS;
- }
-
- static PRStatus PR_CALLBACK SocketGetSockOpt(
- PRFileDesc *fd, PRSockOption optname, void* optval, PRInt32* optlen)
- {
- PRInt32 level, name;
- PRStatus rv;
-
- /*
- * PR_SockOpt_Nonblocking is a special case that does not
- * translate to a getsockopt() call
- */
- if (PR_SockOpt_Nonblocking == optname)
- {
- PR_ASSERT(sizeof(PRIntn) <= *optlen);
- *((PRIntn *) optval) = (PRIntn) fd->secret->nonblocking;
- *optlen = sizeof(PRIntn);
- return PR_SUCCESS;
- }
-
- rv = _PR_MapOptionName(optname, &level, &name);
- if (PR_SUCCESS == rv)
- {
- if (PR_SockOpt_Linger == optname)
- {
- struct linger linger;
- PRInt32 len = sizeof(linger);
- rv = _PR_MD_GETSOCKOPT(
- fd, level, name, (char *) &linger, &len);
- if (PR_SUCCESS == rv)
- {
- ((PRLinger*)(optval))->polarity = linger.l_onoff
- ? PR_TRUE : PR_FALSE;
- ((PRLinger*)(optval))->linger = PR_SecondsToInterval(
- linger.l_linger);
- *optlen = sizeof(PRLinger);
- }
- }
- else
- {
- rv = _PR_MD_GETSOCKOPT(
- fd, level, name, optval, optlen);
- }
- }
- return rv;
- }
-
- static PRStatus PR_CALLBACK SocketSetSockOpt(
- PRFileDesc *fd, PRSockOption optname, const void* optval, PRInt32 optlen)
- {
- PRInt32 level, name;
- PRStatus rv;
-
- /*
- * PR_SockOpt_Nonblocking is a special case that does not
- * translate to a setsockopt call.
- */
- if (PR_SockOpt_Nonblocking == optname)
- {
- PRBool fNonblocking = *((PRIntn *) optval) ? PR_TRUE : PR_FALSE;
- PR_ASSERT(sizeof(PRIntn) == optlen);
- #ifdef WINNT
- PR_ASSERT((fd->secret->md.io_model_committed == PR_FALSE)
- || (fd->secret->nonblocking == fNonblocking));
- if (fd->secret->md.io_model_committed
- && (fd->secret->nonblocking != fNonblocking))
- {
- /*
- * On NT, once we have associated a socket with the io
- * completion port, we can't disassociate it. So we
- * can't change the nonblocking option of the socket
- * afterwards.
- */
- PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
- return PR_FAILURE;
- }
- #endif
- fd->secret->nonblocking = fNonblocking;
- return PR_SUCCESS;
- }
-
- rv = _PR_MapOptionName(optname, &level, &name);
- if (PR_SUCCESS == rv)
- {
- if (PR_SockOpt_Linger == optname)
- {
- struct linger linger;
- linger.l_onoff = ((PRLinger*)(optval))->polarity ? 1 : 0;
- linger.l_linger = PR_IntervalToSeconds(
- ((PRLinger*)(optval))->linger);
- rv = _PR_MD_SETSOCKOPT(
- fd, level, name, (char *) &linger, sizeof(linger));
- }
- else
- {
- rv = _PR_MD_SETSOCKOPT(
- fd, level, name, optval, optlen);
- }
- }
- return rv;
- }
-
- static PRIOMethods tcpMethods = {
- PR_DESC_SOCKET_TCP,
- SocketClose,
- SocketRead,
- SocketWrite,
- SocketAvailable,
- SocketAvailable64,
- SocketSync,
- (PRSeekFN)_PR_InvalidInt,
- (PRSeek64FN)_PR_InvalidInt64,
- (PRFileInfoFN)_PR_InvalidStatus,
- (PRFileInfo64FN)_PR_InvalidStatus,
- SocketWritev,
- SocketConnect,
- SocketAccept,
- SocketBind,
- SocketListen,
- SocketShutdown,
- SocketRecv,
- SocketSend,
- (PRRecvfromFN)_PR_InvalidInt,
- (PRSendtoFN)_PR_InvalidInt,
- (PRPollFN)0,
- SocketAcceptRead,
- SocketTransmitFile,
- SocketGetName,
- SocketGetPeerName,
- SocketGetSockOpt,
- SocketSetSockOpt,
- _PR_SocketGetSocketOption,
- _PR_SocketSetSocketOption
- };
-
- static PRIOMethods udpMethods = {
- PR_DESC_SOCKET_UDP,
- SocketClose,
- SocketRead,
- SocketWrite,
- SocketAvailable,
- SocketAvailable64,
- SocketSync,
- (PRSeekFN)_PR_InvalidInt,
- (PRSeek64FN)_PR_InvalidInt64,
- (PRFileInfoFN)_PR_InvalidStatus,
- (PRFileInfo64FN)_PR_InvalidStatus,
- SocketWritev,
- SocketConnect,
- (PRAcceptFN)_PR_InvalidDesc,
- SocketBind,
- SocketListen,
- SocketShutdown,
- SocketRecv,
- SocketSend,
- SocketRecvFrom,
- SocketSendTo,
- (PRPollFN)0,
- (PRAcceptreadFN)_PR_InvalidInt,
- (PRTransmitfileFN)_PR_InvalidInt,
- SocketGetName,
- SocketGetPeerName,
- SocketGetSockOpt,
- SocketSetSockOpt,
- _PR_SocketGetSocketOption,
- _PR_SocketSetSocketOption
- };
-
- PR_IMPLEMENT(PRIOMethods*) PR_GetTCPMethods()
- {
- return &tcpMethods;
- }
-
- PR_IMPLEMENT(PRIOMethods*) PR_GetUDPMethods()
- {
- return &udpMethods;
- }
-
- PR_IMPLEMENT(PRFileDesc*) PR_Socket(PRInt32 domain, PRInt32 type, PRInt32 proto)
- {
- PRInt32 osfd;
- int one = 1;
- PRFileDesc *fd;
-
- if (!_pr_initialized) _PR_ImplicitInitialization();
- if (AF_INET != domain
- #if defined(_PR_INET6)
- && AF_INET6 != domain
- #endif
- ) {
- PR_SetError(PR_ADDRESS_NOT_SUPPORTED_ERROR, 0);
- return NULL;
- }
- osfd = _PR_MD_SOCKET(domain, type, proto);
- if (osfd == -1) {
- return 0;
- }
- #ifdef HAVE_SOCKET_KEEPALIVE
- /* "Keep-alive" packets are specific to TCP. */
- if (domain == AF_INET && type == SOCK_STREAM) {
- if (setsockopt(osfd, (int)SOL_SOCKET, SO_KEEPALIVE,
- (const void *) &one, sizeof(one) ) < 0) {
- _PR_MD_CLOSE_SOCKET(osfd);
- return 0;
- }
- }
- #endif
- if (type == SOCK_STREAM)
- fd = PR_AllocFileDesc(osfd, PR_GetTCPMethods());
- else
- fd = PR_AllocFileDesc(osfd, PR_GetUDPMethods());
- /*
- * Make the sockets non-blocking
- */
- if (fd != NULL)
- _PR_MD_MAKE_NONBLOCK(fd);
- else
- _PR_MD_CLOSE_SOCKET(osfd);
- return fd;
- }
-
- PR_IMPLEMENT(PRFileDesc *) PR_NewTCPSocket(void)
- {
- PRInt32 domain = AF_INET;
-
- #if defined(_PR_INET6)
- if (_pr_ipv6_enabled) {
- domain = AF_INET6;
- }
- #endif
- return PR_Socket(domain, SOCK_STREAM, 0);
- }
-
- PR_IMPLEMENT(PRFileDesc*) PR_NewUDPSocket(void)
- {
- PRInt32 domain = AF_INET;
-
- #if defined(_PR_INET6)
- if (_pr_ipv6_enabled) {
- domain = AF_INET6;
- }
- #endif
- return PR_Socket(domain, SOCK_DGRAM, 0);
- }
-
- PR_IMPLEMENT(PRStatus) PR_NewTCPSocketPair(PRFileDesc *f[])
- {
- #ifdef XP_UNIX
- PRInt32 rv, osfd[2];
-
- rv = _PR_MD_SOCKETPAIR(AF_UNIX, SOCK_STREAM, 0, osfd);
- if (rv == -1) {
- return PR_FAILURE;
- }
-
- f[0] = PR_AllocFileDesc(osfd[0], PR_GetTCPMethods());
- if (!f[0]) {
- _PR_MD_CLOSE_SOCKET(osfd[0]);
- _PR_MD_CLOSE_SOCKET(osfd[1]);
- /* PR_AllocFileDesc() has invoked PR_SetError(). */
- return PR_FAILURE;
- }
- f[1] = PR_AllocFileDesc(osfd[1], PR_GetTCPMethods());
- if (!f[1]) {
- PR_Close(f[0]);
- _PR_MD_CLOSE_SOCKET(osfd[1]);
- /* PR_AllocFileDesc() has invoked PR_SetError(). */
- return PR_FAILURE;
- }
- _PR_MD_MAKE_NONBLOCK(f[0]);
- _PR_MD_MAKE_NONBLOCK(f[1]);
- return PR_SUCCESS;
- #endif
-
- /* XXX: this needs to be implemented for MAC and NT */
- #ifdef XP_MAC
- #pragma unused (f)
-
- PR_SetError(PR_NOT_IMPLEMENTED_ERROR, unimpErr);
- return PR_FAILURE;
- #endif
-
- #ifdef XP_PC
- PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
- return PR_FAILURE;
- #endif
- }
-
- PR_IMPLEMENT(PRInt32)
- PR_FileDesc2NativeHandle(PRFileDesc *fd)
- {
- if (fd) {
- /*
- * The fd may be layered. Chase the links to the
- * bottom layer to get the osfd.
- */
- PRFileDesc *bottom = fd;
- while (bottom->lower != NULL) {
- bottom = bottom->lower;
- }
- return bottom->secret->md.osfd;
- } else {
- PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
- return -1;
- }
- }
-
- PR_IMPLEMENT(void)
- PR_ChangeFileDescNativeHandle(PRFileDesc *fd, PRInt32 handle)
- {
- if (fd)
- fd->secret->md.osfd = handle;
- }
-
- /*
- * _PR_EmulateTransmitFile
- *
- * Send file fd across socket sd. If headers is non-NULL, 'hlen'
- * bytes of headers is sent before sending the file.
- *
- * PR_TRANSMITFILE_CLOSE_SOCKET flag - close socket after sending file
- *
- * return number of bytes sent or -1 on error
- *
- */
-
- PRInt32 _PR_EmulateTransmitFile(PRFileDesc *sd, PRFileDesc *fd,
- const void *headers, PRInt32 hlen, PRTransmitFileFlags flags,
- PRIntervalTime timeout)
- {
- PRInt32 rv, count = 0;
- PRInt32 rlen;
- PRThread *me = _PR_MD_CURRENT_THREAD();
- char *buf = NULL;
- #define _TRANSMITFILE_BUFSIZE (16 * 1024)
-
- if (_PR_PENDING_INTERRUPT(me)) {
- me->flags &= ~_PR_INTERRUPT;
- PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0);
- return -1;
- }
-
- buf = PR_MALLOC(_TRANSMITFILE_BUFSIZE);
- if (buf == NULL) {
- PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0);
- return -1;
- }
-
- /*
- * send headers, first
- */
- while (hlen) {
- rv = PR_Send(sd, headers, hlen, 0, timeout);
- if (rv < 0) {
- /* PR_Send() has invoked PR_SetError(). */
- rv = -1;
- goto done;
- } else {
- count += rv;
- headers = (const void*) ((const char*)headers + rv);
- hlen -= rv;
- }
- }
- /*
- * send file, next
- */
- while ((rlen = PR_Read(fd, buf, _TRANSMITFILE_BUFSIZE)) > 0) {
- while (rlen) {
- char *bufptr = buf;
-
- rv = PR_Send(sd, bufptr, rlen,0,PR_INTERVAL_NO_TIMEOUT);
- if (rv < 0) {
- /* PR_Send() has invoked PR_SetError(). */
- rv = -1;
- goto done;
- } else {
- count += rv;
- bufptr = ((char*)bufptr + rv);
- rlen -= rv;
- }
- }
- }
- if (rlen == 0) {
- /*
- * end-of-file
- */
- if (flags & PR_TRANSMITFILE_CLOSE_SOCKET)
- PR_Close(sd);
- rv = count;
- } else {
- PR_ASSERT(rlen < 0);
- /* PR_Read() has invoked PR_SetError(). */
- rv = -1;
- }
-
- done:
- if (buf)
- PR_DELETE(buf);
- return rv;
- }
-
- /*
- * _PR_EmulateAcceptRead
- *
- * Accept an incoming connection on sd, set *nd to point to the
- * newly accepted socket, read 'amount' bytes from the accepted
- * socket.
- *
- * buf is a buffer of length = (amount + sizeof(PRNetAddr))
- * *raddr points to the PRNetAddr of the accepted connection upon
- * return
- *
- * return number of bytes read or -1 on error
- *
- */
- PRInt32 _PR_EmulateAcceptRead(PRFileDesc *sd, PRFileDesc **nd,
- PRNetAddr **raddr, void *buf, PRInt32 amount, PRIntervalTime timeout)
- {
- PRInt32 rv;
- PRFileDesc *newsockfd;
- PRNetAddr remote;
- PRIntervalTime start, elapsed;
-
- if (PR_INTERVAL_NO_TIMEOUT != timeout) {
- start = PR_IntervalNow();
- }
- if ((newsockfd = PR_Accept(sd, &remote, timeout)) == NULL) {
- return -1;
- }
-
- if (PR_INTERVAL_NO_TIMEOUT != timeout) {
- elapsed = (PRIntervalTime) (PR_IntervalNow() - start);
- if (elapsed > timeout) {
- PR_SetError(PR_IO_TIMEOUT_ERROR, 0);
- goto failed;
- } else {
- timeout = timeout - elapsed;
- }
- }
-
- rv = PR_Recv(newsockfd, buf, amount, 0, timeout);
- if (rv >= 0) {
- *nd = newsockfd;
- *raddr = (PRNetAddr *)((char *) buf + amount);
- memcpy(*raddr, &remote, PR_NETADDR_SIZE(&remote));
- return rv;
- }
-
- failed:
- PR_Close(newsockfd);
- return -1;
- }
-
- /*
- ** Select compatibility
- **
- */
-
- PR_IMPLEMENT(void) PR_FD_ZERO(PR_fd_set *set)
- {
- memset(set, 0, sizeof(PR_fd_set));
- }
-
- PR_IMPLEMENT(void) PR_FD_SET(PRFileDesc *fh, PR_fd_set *set)
- {
- PR_ASSERT( set->hsize < PR_MAX_SELECT_DESC );
-
- set->harray[set->hsize++] = fh;
- }
-
- PR_IMPLEMENT(void) PR_FD_CLR(PRFileDesc *fh, PR_fd_set *set)
- {
- PRUint32 index, index2;
-
- for (index = 0; index<set->hsize; index++)
- if (set->harray[index] == fh) {
- for (index2=index; index2 < (set->hsize-1); index2++) {
- set->harray[index2] = set->harray[index2+1];
- }
- set->hsize--;
- break;
- }
- }
-
- PR_IMPLEMENT(PRInt32) PR_FD_ISSET(PRFileDesc *fh, PR_fd_set *set)
- {
- PRUint32 index;
- for (index = 0; index<set->hsize; index++)
- if (set->harray[index] == fh) {
- return 1;
- }
- return 0;
- }
-
- PR_IMPLEMENT(void) PR_FD_NSET(PRInt32 fd, PR_fd_set *set)
- {
- PR_ASSERT( set->nsize < PR_MAX_SELECT_DESC );
-
- set->narray[set->nsize++] = fd;
- }
-
- PR_IMPLEMENT(void) PR_FD_NCLR(PRInt32 fd, PR_fd_set *set)
- {
- PRUint32 index, index2;
-
- for (index = 0; index<set->nsize; index++)
- if (set->narray[index] == fd) {
- for (index2=index; index2 < (set->nsize-1); index2++) {
- set->narray[index2] = set->narray[index2+1];
- }
- set->nsize--;
- break;
- }
- }
-
- PR_IMPLEMENT(PRInt32) PR_FD_NISSET(PRInt32 fd, PR_fd_set *set)
- {
- PRUint32 index;
- for (index = 0; index<set->nsize; index++)
- if (set->narray[index] == fd) {
- return 1;
- }
- return 0;
- }
-
-
- #if !defined(NEED_SELECT)
- #if !defined(XP_MAC)
- #include "obsolete/probslet.h"
- #else
- #include "probslet.h"
- #endif
-
- #define PD_INCR 20
-
- static PRPollDesc *_pr_setfd(
- PR_fd_set *set, PRInt16 flags, PRPollDesc *polldesc)
- {
- PRUintn fsidx, pdidx;
- PRPollDesc *poll = polldesc;
-
- if (NULL == set) return poll;
-
- /* First set the pr file handle osfds */
- for (fsidx = 0; fsidx < set->hsize; fsidx++)
- {
- for (pdidx = 0; 1; pdidx++)
- {
- if ((PRFileDesc*)-1 == poll[pdidx].fd)
- {
- /* our vector is full - extend and condition it */
- poll = PR_Realloc(
- poll, (pdidx + 1 + PD_INCR) * sizeof(PRPollDesc));
- if (NULL == poll) goto out_of_memory;
- memset(
- poll + pdidx * sizeof(PRPollDesc),
- 0, PD_INCR * sizeof(PRPollDesc));
- poll[pdidx + PD_INCR].fd = (PRFileDesc*)-1;
- }
- if ((NULL == poll[pdidx].fd)
- || (poll[pdidx].fd == set->harray[fsidx]))
- {
- /* PR_ASSERT(0 == (poll[pdidx].in_flags & flags)); */
- /* either empty or prevously defined */
- poll[pdidx].fd = set->harray[fsidx]; /* possibly redundant */
- poll[pdidx].in_flags |= flags; /* possibly redundant */
- break;
- }
- }
- }
-
- #if 0
- /* Second set the native osfds */
- for (fsidx = 0; fsidx < set->nsize; fsidx++)
- {
- for (pdidx = 0; ((PRFileDesc*)-1 != poll[pdidx].fd); pdidx++)
- {
- if ((PRFileDesc*)-1 == poll[pdidx].fd)
- {
- /* our vector is full - extend and condition it */
- poll = PR_Realloc(
- poll, (pdidx + PD_INCR) * sizeof(PRPollDesc));
- if (NULL == poll) goto out_of_memory;
- memset(
- poll + pdidx * sizeof(PRPollDesc),
- 0, PD_INCR * sizeof(PRPollDesc));
- poll[(pdidx + PD_INCR)].fd = (PRFileDesc*)-1;
- }
- if ((NULL == poll[pdidx].fd)
- || (poll[pdidx].fd == set->narray[fsidx]))
- {
- /* either empty or prevously defined */
- poll[pdidx].fd = set->narray[fsidx];
- PR_ASSERT(0 == (poll[pdidx].in_flags & flags));
- poll[pdidx].in_flags |= flags;
- break;
- }
- }
- }
- #endif /* 0 */
-
- return poll;
-
- out_of_memory:
- if (NULL != polldesc) PR_DELETE(polldesc);
- return NULL;
- } /* _pr_setfd */
-
- #endif /* !defined(NEED_SELECT) */
-
- PR_IMPLEMENT(PRInt32) PR_Select(
- PRInt32 unused, PR_fd_set *pr_rd, PR_fd_set *pr_wr,
- PR_fd_set *pr_ex, PRIntervalTime timeout)
- {
-
- #if !defined(NEED_SELECT)
- PRInt32 npds = 0;
- /*
- ** Find out how many fds are represented in the three lists.
- ** Then allocate a polling descriptor for the logical union
- ** (there can't be any overlapping) and call PR_Poll().
- */
-
- PRPollDesc *copy, *poll;
-
- static PRBool warning = PR_TRUE;
- if (warning) warning = _PR_Obsolete( "PR_Select()", "PR_Poll()");
-
- /* try to get an initial guesss at how much space we need */
- npds = 0;
- if ((NULL != pr_rd) && ((pr_rd->hsize + pr_rd->nsize - npds) > 0))
- npds = pr_rd->hsize + pr_rd->nsize;
- if ((NULL != pr_wr) && ((pr_wr->hsize + pr_wr->nsize - npds) > 0))
- npds = pr_wr->hsize + pr_wr->nsize;
- if ((NULL != pr_ex) && ((pr_ex->hsize + pr_ex->nsize - npds) > 0))
- npds = pr_ex->hsize + pr_ex->nsize;
-
- if (0 == npds)
- {
- PR_Sleep(timeout);
- return 0;
- }
-
- copy = poll = PR_Calloc(npds + PD_INCR, sizeof(PRPollDesc));
- if (NULL == poll) goto out_of_memory;
- poll[npds + PD_INCR - 1].fd = (PRFileDesc*)-1;
-
- poll = _pr_setfd(pr_rd, PR_POLL_READ, poll);
- if (NULL == poll) goto out_of_memory;
- poll = _pr_setfd(pr_wr, PR_POLL_WRITE, poll);
- if (NULL == poll) goto out_of_memory;
- poll = _pr_setfd(pr_ex, PR_POLL_EXCEPT, poll);
- if (NULL == poll) goto out_of_memory;
- unused = 0;
- while (NULL != poll[unused].fd && (PRFileDesc*)-1 != poll[unused].fd)
- {
- ++unused;
- }
-
- PR_ASSERT(unused > 0);
- npds = PR_Poll(poll, unused, timeout);
-
- if (npds > 0)
- {
- /* Copy the results back into the fd sets */
- if (NULL != pr_rd) pr_rd->nsize = pr_rd->hsize = 0;
- if (NULL != pr_wr) pr_wr->nsize = pr_wr->hsize = 0;
- if (NULL != pr_ex) pr_ex->nsize = pr_ex->hsize = 0;
- for (copy = &poll[unused - 1]; copy >= poll; --copy)
- {
- if (copy->out_flags & PR_POLL_NVAL)
- {
- PR_SetError(PR_BAD_DESCRIPTOR_ERROR, 0);
- npds = -1;
- break;
- }
- if (copy->out_flags & PR_POLL_READ)
- if (NULL != pr_rd) pr_rd->harray[pr_rd->hsize++] = copy->fd;
- if (copy->out_flags & PR_POLL_WRITE)
- if (NULL != pr_wr) pr_wr->harray[pr_wr->hsize++] = copy->fd;
- if (copy->out_flags & PR_POLL_EXCEPT)
- if (NULL != pr_ex) pr_ex->harray[pr_ex->hsize++] = copy->fd;
- }
- }
- PR_DELETE(poll);
-
- return npds;
- out_of_memory:
- PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0);
- return -1;
-
- #endif /* !defined(NEED_SELECT) */
-
- }
-