signal support initial changes

Author: manojampalam

contrib/win32/win32compat/inc/defs.h

@@ -28,3 +28,46 @@
 
 /*fd flags*/
 #define FD_CLOEXEC 0x1
+
+/* signal related defs*/
+typedef void(*sighandler_t)(int);
+// Signal types
+#define SIGINT          2   // interrupt
+#define SIGSEGV         11  // segment violation
+
+#define SIGPIPE		27
+#define SIGCHLD		26
+#define SIGALRM		14
+#define SIGTSTP		5 //"CTRL+Z" - no portable number
+
+#define SIGHUP		1 //Terminate from console
+#define SIGQUIT		3 
+#define SIGTERM		15// Software termination signal from kill
+#define SIGTTIN		6//noportabel number
+#define SIGTTOU		7 //no portable number
+
+
+
+//#define SIGINT          2   // interrupt
+//#define SIGILL          4   // illegal instruction - invalid function image
+//#define SIGFPE          8   // floating point exception
+//#define SIGSEGV         11  // segment violation
+//#define SIGTERM         15  // Software termination signal from kill
+//#define SIGBREAK        21  // Ctrl-Break sequence
+//#define SIGABRT         22  // abnormal termination triggered by abort call
+//#define SIGWINCH 
+//
+//#define SIGABRT_COMPAT  6   // SIGABRT compatible with other platforms, same as SIGABRT
+//
+//#define SIGALRM 14
+//#define SIGCHLD 26
+//#define SIGHUP  1
+//#define SIGPIPE 27
+//#define SIGQUIT 3
+
+// Signal action codes
+#define SIG_DFL (0)     // default signal action
+#define SIG_IGN (1)     // ignore signal
+#define SIG_GET (2)     // return current value
+#define SIG_SGE (3)     // signal gets error
+#define SIG_ACK (4)     // acknowledge

contrib/win32/win32compat/inc/signal.h

@@ -8,28 +8,8 @@
 
 #include "w32posix.h"
 
-// Signal types
-#define SIGINT          2   // interrupt
-#define SIGILL          4   // illegal instruction - invalid function image
-#define SIGFPE          8   // floating point exception
-#define SIGSEGV         11  // segment violation
-#define SIGTERM         15  // Software termination signal from kill
-#define SIGBREAK        21  // Ctrl-Break sequence
-#define SIGABRT         22  // abnormal termination triggered by abort call
+#define signal(a,b)	w32_signal((a), (b))
+#define mysignal(a,b)	w32_signal((a), (b))
 
-#define SIGABRT_COMPAT  6   // SIGABRT compatible with other platforms, same as SIGABRT
-
-#define SIGALRM 14
-#define SIGCHLD 26
-#define SIGHUP  1
-#define SIGPIPE 27
-#define SIGQUIT 3
-
-// Signal action codes
-#define SIG_DFL (0)     // default signal action
-#define SIG_IGN (1)     // ignore signal
-#define SIG_GET (2)     // return current value
-#define SIG_SGE (3)     // signal gets error
-#define SIG_ACK (4)     // acknowledge
 
 #endif

contrib/win32/win32compat/inc/w32posix.h

@@ -67,10 +67,7 @@ int w32_dup2(int oldfd, int newfd);
 
 /* misc */
 unsigned int w32_alarm(unsigned int seconds);
-typedef void(*sighandler_t)(int);
-#define signal(a,b)	w32_signal((a), (b))
-#define mysignal(a,b)	w32_signal((a), (b))
-
+sighandler_t w32_signal(int signum, sighandler_t handler);
 
 /* Shutdown constants */
 #define SHUT_WR SD_SEND

contrib/win32/win32compat/signal.c

@@ -30,6 +30,7 @@
 
 #include "w32fd.h"
 #include <errno.h>
+#include "inc\defs.h"
 
 /* signal handlers */
 
@@ -47,6 +48,11 @@ signalio_initialize() {
 	memset(&children, 0, sizeof(children));
 }
 
+sighandler_t w32_signal(int signum, sighandler_t handler) {
+	/*TODO - implement signal()*/
+	return 0;
+}
+
 int
 signalio_add_child(HANDLE child) {
 	if (children.num_children == MAX_CHILDREN) {

contrib/win32/win32compat/w32fd.c

@@ -453,6 +453,28 @@ w32_close(int fd) {
 		}
 }
 
+static int
+w32_io_process_fd_flags(struct w32_io* pio, int flags) {
+	DWORD shi_flags;
+	if (flags & ~FD_CLOEXEC) {
+		debug("fcntl - ERROR unsupported flags %d, io:%p", flags, pio);
+		errno = ENOTSUP;
+		return -1;
+	}
+
+	shi_flags = (flags & FD_CLOEXEC) ? 0 : HANDLE_FLAG_INHERIT;
+
+	if (SetHandleInformation(WINHANDLE(pio), HANDLE_FLAG_INHERIT, shi_flags) == FALSE) {
+		debug("fcntl - SetHandleInformation failed  %d, io:%p", 
+			GetLastError(), pio);
+		errno = EOTHER;
+		return -1;
+	}
+
+	pio->fd_flags = flags;
+	return 0;
+}
+
 int
 w32_fcntl(int fd, int cmd, ... /* arg */) {
 	va_list valist;
@@ -467,11 +489,9 @@ w32_fcntl(int fd, int cmd, ... /* arg */) {
 		fd_table.w32_ios[fd]->fd_status_flags = va_arg(valist, int);
 		return 0;
 	case F_GETFD:
-		return fd_table.w32_ios[fd]->fd_flags;
-		return 0;
+		return fd_table.w32_ios[fd]->fd_flags;		
 	case F_SETFD:
-		fd_table.w32_ios[fd]->fd_flags = va_arg(valist, int);
-		return 0;
+		return w32_io_process_fd_flags(fd_table.w32_ios[fd], va_arg(valist, int));		
 	default:
 		errno = EINVAL;
 		debug("fcntl - ERROR not supported cmd:%d", cmd);
@@ -725,11 +745,6 @@ w32_alarm(unsigned int seconds) {
 	return 0;
 }
 
-sighandler_t w32_signal(int signum, sighandler_t handler) {
-	/*TODO - implement signal()*/
-	return 0;
-}
-
 int
 w32_temp_DelChildToWatch(HANDLE processtowatch) {
 	return 0;