Rollback my changes for the Windows port on these 3 files. Remove some of the

functionality of libevent for Windows. Anyway, these functions are not 
currently used in the Open MPI project, so it's safe to remove them from the
Windows library. But, they should be never used otherwise changes are 
required.

This commit was SVN r11378.

opal/event/buffer.c

@@ -62,7 +62,7 @@ evbuffer_new(void)
 {
 	struct evbuffer *buffer;
 	
-	buffer = (struct evbuffer*)calloc(1, sizeof(struct evbuffer));
+	buffer = calloc(1, sizeof(struct evbuffer));
 
 	return (buffer);
 }
@@ -207,7 +207,7 @@ evbuffer_readline(struct evbuffer *buffer)
 	if (i == (u_int) len)
 		return (NULL);
 
-	if ((line = (char*)malloc(i + 1)) == NULL) {
+	if ((line = malloc(i + 1)) == NULL) {
 		fprintf(stderr, "%s: out of memory\n", __func__);
 		evbuffer_drain(buffer, i);
 		return (NULL);
@@ -274,7 +274,7 @@ evbuffer_expand(struct evbuffer *buf, size_t datlen)
 		if ((newbuf = realloc(buf->buffer, length)) == NULL)
 			return (-1);
 
-		buf->orig_buffer = buf->buffer = (u_char*)newbuf;
+		buf->orig_buffer = buf->buffer = newbuf;
 		buf->totallen = length;
 	}
 
@@ -336,19 +336,13 @@ evbuffer_read(struct evbuffer *buf, int fd, int howmuch)
 {
 	u_char *p;
 	size_t oldoff = buf->off;
-#ifdef WIN32
-	u_long n = EVBUFFER_MAX_READ;
-	DWORD dwBytesRead;
-#else
 	int n = EVBUFFER_MAX_READ;
+#ifdef WIN32
+	DWORD dwBytesRead;
 #endif
 
-#if !defined(__WINDOWS__) && defined(FIONREAD)
+#ifdef FIONREAD
-#ifdef WIN32
-	if (ioctlsocket(fd, FIONREAD, &n) == -1 || n == 0) {
-#else
 	if (ioctl(fd, FIONREAD, &n) == -1 || n == 0) {
-#endif
 		n = EVBUFFER_MAX_READ;
 	} else if (n > EVBUFFER_MAX_READ && n > howmuch) {
 		/*
@@ -432,7 +426,7 @@ evbuffer_find(struct evbuffer *buffer, const u_char *what, size_t len)
 	u_char *search = buffer->buffer;
 	u_char *p;
 
-	while ((p = (u_char*)memchr(search, *what, remain)) != NULL && remain >= len) {
+	while ((p = memchr(search, *what, remain)) != NULL && remain >= len) {
 		if (memcmp(p, what, len) == 0)
 			return (p);
 

opal/event/evbuffer.c

@@ -42,7 +42,6 @@
 #endif
 
 #include "event.h"
-#include "opal/opal_socket_errno.h"
 
 /* prototypes */
 
@@ -71,7 +70,7 @@ bufferevent_add(struct opal_event *ev, int timeout)
 static void
 bufferevent_read_pressure_cb(struct evbuffer *buf, size_t old, size_t now,
     void *arg) {
-	struct bufferevent *bufev = (struct bufferevent*)arg;
+	struct bufferevent *bufev = arg;
 	/* 
 	 * If we are below the watermak then reschedule reading if it's
 	 * still enabled.
@@ -87,7 +86,7 @@ bufferevent_read_pressure_cb(struct evbuffer *buf, size_t old, size_t now,
 static void
 bufferevent_readcb(int fd, short event, void *arg)
 {
-	struct bufferevent *bufev = (struct bufferevent*)arg;
+	struct bufferevent *bufev = arg;
 	int res = 0;
 	short what = OPAL_EVBUFFER_READ;
 	size_t len;
@@ -141,7 +140,7 @@ bufferevent_readcb(int fd, short event, void *arg)
 static void
 bufferevent_writecb(int fd, short event, void *arg)
 {
-	struct bufferevent *bufev = (struct bufferevent*)arg;
+	struct bufferevent *bufev = arg;
 	int res = 0;
 	short what = OPAL_EVBUFFER_WRITE;
 
@@ -155,12 +154,7 @@ bufferevent_writecb(int fd, short event, void *arg)
 	    if (res == -1) {
 		    if (errno == EAGAIN ||
 			errno == EINTR ||
-#if !defined(__WINDOWS__)
+			errno == EINPROGRESS)
-			errno == EINPROGRESS
-#else
-                        0
-#endif  /* !defined(__WINDOWS__) */
-                       )
 			    goto reschedule;
 		    /* error case */
 		    what |= OPAL_EVBUFFER_ERROR;
@@ -207,7 +201,7 @@ bufferevent_new(int fd, evbuffercb readcb, evbuffercb writecb,
 {
 	struct bufferevent *bufev;
 
-	if ((bufev = (struct bufferevent*)calloc(1, sizeof(struct bufferevent))) == NULL)
+	if ((bufev = calloc(1, sizeof(struct bufferevent))) == NULL)
 		return (NULL);
 
 	if ((bufev->input = evbuffer_new()) == NULL) {

opal/event/log.h

@@ -27,8 +27,6 @@
 #ifndef _LOG_H_
 #define _LOG_H_
 
-#include "opal/event/event_rename.h"
-
 void event_err(int eval, const char *fmt, ...);
 void event_warn(const char *fmt, ...);
 void event_errx(int eval, const char *fmt, ...);