make it compile with mingw; from Nick

svn:r235

Makefile.am

@@ -1,6 +1,5 @@
 AUTOMAKE_OPTIONS = foreign no-dependencies
 
-SUBDIRS = . sample test
 
 bin_SCRIPTS = event_rpcgen.py
 
@@ -22,14 +21,30 @@ EXTRA_DIST = acconfig.h event.h event-internal.h log.h evsignal.h event.3 \
 
 lib_LTLIBRARIES = libevent.la
 
+if BUILD_WIN32
+
+SUBDIRS = . sample
+SYS_LIBS = -lws2_32
+SYS_SRC = WIN32-Code/misc.c WIN32-Code/win32.c
+SYS_INCLUDES = -IWIN32-Code
+
+else
+
+SUBDIRS = . sample test
+SYS_LIBS =
+SYS_SRC =
+SYS_INCLUDES =
+
+endif
+
 libevent_la_SOURCES = event.c buffer.c evbuffer.c log.c event_tagging.c \
-	 http.c evhttp.h http-internal.h evdns.c evdns.h
-libevent_la_LIBADD = @LTLIBOBJS@
+	 http.c evhttp.h http-internal.h evdns.c evdns.h $(SYS_SRC)
+libevent_la_LIBADD = @LTLIBOBJS@ $(SYS_LIBS)
 libevent_la_LDFLAGS = -release @VERSION@ -version-info 1:3:0
 
 include_HEADERS = event.h evhttp.h evdns.h
 
-INCLUDES = -Icompat
+INCLUDES = -Icompat $(SYS_INCLUDES)
 
 man_MANS = event.3
 

WIN32-Code/misc.c

@@ -4,6 +4,12 @@
 #include <sys/timeb.h>
 #include <time.h>
 
+#ifdef __GNUC__
+/*our prototypes for timeval and timezone are in here, just in case the above
+  headers don't have them*/
+#include "misc.h"
+#endif
+
 /****************************************************************************
  *
  * Function: gettimeofday(struct timeval *, struct timezone *)
@@ -17,6 +23,7 @@
  *
  ****************************************************************************/
 
+#ifndef HAVE_GETTIMEOFDAY
 int gettimeofday(struct timeval *tv, struct timezone *tz) {
   struct _timeb tb;
 
@@ -28,6 +35,7 @@ int gettimeofday(struct timeval *tv, struct timezone *tz) {
 	tv->tv_usec = ((int) tb.millitm) * 1000;
 	return 0;
 }
+#endif
 
 int
 win_read(int fd, void *buf, unsigned int length)

WIN32-Code/misc.h

@@ -1,6 +1,11 @@
 #ifndef MISC_H
 #define MISC_H
 
+struct timezone;
+struct timeval;
+
+#ifndef HAVE_GETTIMEOFDAY
 int gettimeofday(struct timeval *,struct timezone *);
+#endif
 
 #endif

WIN32-Code/win32.c

@@ -60,7 +60,8 @@ volatile sig_atomic_t signal_caught = 0;
 /* MSDN says this is required to handle SIGFPE */
 volatile double SIGFPE_REQ = 0.0f;
 
-int signal_handler(int sig);
+static void signal_handler(int sig);
+
 void signal_process(void);
 int signal_recalc(void);
 
@@ -207,8 +208,9 @@ win32_recalc(struct event_base *base, void *arg, int max)
 }
 
 int
-win32_insert(struct win32op *win32op, struct event *ev)
+win32_insert(void *op, struct event *ev)
 {
+	struct win32op *win32op = op;
 	int i;
 
 	if (ev->ev_events & EV_SIGNAL) {
@@ -253,8 +255,9 @@ win32_insert(struct win32op *win32op, struct event *ev)
 }
 
 int
-win32_del(struct win32op *win32op, struct event *ev)
+win32_del(void *op, struct event *ev)
 {
+	struct win32op *win32op = op;
 	int i, found;
 
 	if (ev->ev_events & EV_SIGNAL)
@@ -304,9 +307,10 @@ fd_set_copy(struct win_fd_set *out, const struct win_fd_set *in)
 */
 
 int
-win32_dispatch(struct event_base *base, struct win32op *win32op,
+win32_dispatch(struct event_base *base, void *op,
 	       struct timeval *tv)
 {
+	struct win32op *win32op = op;
 	int res = 0;
 	int i;
 	int fd_count;
@@ -389,13 +393,11 @@ win32_dealloc(void *arg)
 	free(win32op);
 }
 
-static int
+static void
 signal_handler(int sig)
 {
 	evsigcaught[sig]++;
 	signal_caught = 1;
-
-	return 0;
 }
 
 int

buffer.c

@@ -197,7 +197,7 @@ evbuffer_readline(struct evbuffer *buffer)
 	u_char *data = EVBUFFER_DATA(buffer);
 	size_t len = EVBUFFER_LENGTH(buffer);
 	char *line;
-	u_int i;
+	unsigned int i;
 
 	for (i = 0; i < len; i++) {
 		if (data[i] == '\r' || data[i] == '\n')

configure.in

@@ -111,6 +111,21 @@ if test "x$ac_cv_header_sys_time_h" = "xyes"; then
 )
 fi
 
+dnl - check if the macro WIN32 is defined on this compiler.
+dnl - (this is how we check for a windows version of GCC)
+AC_MSG_CHECKING(for WIN32)
+AC_TRY_COMPILE(,
+	[
+	#ifndef WIN32
+	#error
+	#endif
+	],
+	bwin32=true; AC_MSG_RESULT(yes),
+	bwin32=false; AC_MSG_RESULT(no),
+)
+
+AM_CONDITIONAL(BUILD_WIN32, test x$bwin32 = xtrue)
+
 dnl Checks for typedefs, structures, and compiler characteristics.
 AC_C_CONST
 AC_C_INLINE

evbuffer.c

@@ -163,12 +163,20 @@ bufferevent_writecb(int fd, short event, void *arg)
 	if (EVBUFFER_LENGTH(bufev->output)) {
 	    res = evbuffer_write(bufev->output, fd);
 	    if (res == -1) {
+#ifndef WIN32
+/*todo. evbuffer uses WriteFile when WIN32 is set. WIN32 system calls do not
+ *set errno. thus this error checking is not portable*/
 		    if (errno == EAGAIN ||
 			errno == EINTR ||
 			errno == EINPROGRESS)
 			    goto reschedule;
 		    /* error case */
 		    what |= EVBUFFER_ERROR;
+
+#else
+				goto reschedule;
+#endif
+
 	    } else if (res == 0) {
 		    /* eof case */
 		    what |= EVBUFFER_EOF;