cleaned up source code a little more

qse/cmd/awk/Awk.cpp

@@ -15,6 +15,7 @@
 #else
 #	include <unistd.h>
 #	include <signal.h>
+#	include <errno.h>
 #endif
 
 #if defined(_WIN32) && defined(_MSC_VER) && defined(_DEBUG)
@@ -26,6 +27,14 @@
 #	include <mcheck.h>
 #endif
 
+class TestAwk;
+#ifdef _WIN32
+static BOOL WINAPI stop_run (DWORD ctrl_type);
+#else
+static void stop_run (int sig);
+#endif
+
+TestAwk* app_awk = QSE_NULL;
 static bool verbose = false;
 
 class TestAwk: public QSE::StdAwk
@@ -226,6 +235,17 @@ protected:
 	void onRunStart (Run& run)
 	{
 		if (verbose) qse_printf (QSE_T("*** awk run started ***\n"));
+
+		app_awk = this;
+	#ifdef _WIN32
+		SetConsoleCtrlHandler (stop_run, TRUE);
+	#else
+		struct sigaction sa_int;
+		sa_int.sa_handler = stop_run;
+		sigemptyset (&sa_int.sa_mask);
+		sa_int.sa_flags = 0;
+		sigaction (SIGINT, &sa_int, NULL);
+	#endif
 	}
 
 	void onRunEnd (Run& run)
@@ -238,6 +258,16 @@ protected:
 				run.getErrorLine(), run.getErrorMessage());
 		}
 
+	#ifdef _WIN32
+		SetConsoleCtrlHandler (stop_run, FALSE);
+	#else
+		struct sigaction sa_int;
+		sa_int.sa_handler = SIG_DFL;
+		sigemptyset (&sa_int.sa_mask);
+		sa_int.sa_flags = 0;
+		sigaction (SIGINT, &sa_int, NULL);
+	#endif
+		app_awk = QSE_NULL;
 		if (verbose) qse_printf (QSE_T("*** awk run ended ***\n"));
 	}
 
@@ -597,6 +627,28 @@ private:
 #endif
 };
 
+#ifdef _WIN32
+static BOOL WINAPI stop_run (DWORD ctrl_type)
+{
+	if (ctrl_type == CTRL_C_EVENT ||
+	    ctrl_type == CTRL_CLOSE_EVENT)
+	{
+		if (app_awk) app_awk->stop ();
+		return TRUE;
+	}
+
+	return FALSE;
+}
+#else
+static void stop_run (int sig)
+{
+	int e = errno;
+	if (app_awk) app_awk->stop ();
+	errno = e;
+}
+#endif
+
+
 #ifndef NDEBUG
 void qse_assert_abort (void)
 {
@@ -690,49 +742,6 @@ static void print_usage (const qse_char_t* argv0)
 	}
 }
 
-TestAwk* app_awk = QSE_NULL;
-
-#ifdef _WIN32
-static BOOL WINAPI stop_run (DWORD ctrl_type)
-{
-	if (ctrl_type == CTRL_C_EVENT ||
-	    ctrl_type == CTRL_CLOSE_EVENT)
-	{
-		if (app_awk) app_awk->stop ();
-		return TRUE;
-	}
-
-	return FALSE;
-}
-#else
-static void stop_run (int sig)
-{
-	signal  (SIGINT, SIG_IGN);
-	if (app_awk) app_awk->stop ();
-	signal  (SIGINT, stop_run);
-}
-#endif
-
-static void set_intr_run (TestAwk* awk)
-{
-	app_awk = awk;
-#ifdef _WIN32
-	SetConsoleCtrlHandler (stop_run, TRUE);
-#else
-	signal (SIGINT, stop_run);
-#endif
-}
-
-static void unset_intr_run ()
-{
-	app_awk = QSE_NULL;
-#ifdef _WIN32
-	SetConsoleCtrlHandler (stop_run, FALSE);
-#else
-	signal (SIGINT, SIG_DFL);
-#endif
-}
-
 static int awk_main (int argc, qse_char_t* argv[])
 {
 	TestAwk awk;
@@ -918,8 +927,6 @@ static int awk_main (int argc, qse_char_t* argv[])
 
 	awk.enableRunCallback ();
 
-
-	set_intr_run (&awk);
 	if (awk.run (mainfn, args, nargs) == -1)
 	{
 		qse_fprintf (stderr, QSE_T("cannot run: LINE[%d] %s\n"), 
@@ -927,7 +934,6 @@ static int awk_main (int argc, qse_char_t* argv[])
 		awk.close ();
 		return -1;
 	}
-	unset_intr_run ();
 
 	awk.close ();
 

qse/cmd/awk/awk.c

@@ -22,8 +22,6 @@
 #	include <windows.h>
 #	include <tchar.h>
 #	include <process.h>
-	#pragma warning (disable: 4996)
-	#pragma warning (disable: 4296)
 
 #	if defined(_MSC_VER) && defined(_DEBUG)
 #		define _CRTDBG_MAP_ALLOC
@@ -31,6 +29,7 @@
 #	endif
 #else
 #	include <unistd.h>
+#	include <errno.h>
 #endif
 
 static qse_awk_t* app_awk = NULL;
@@ -48,7 +47,6 @@ static void dprint (const qse_char_t* fmt, ...)
 	}
 }
 
-
 #ifdef _WIN32
 static BOOL WINAPI stop_run (DWORD ctrl_type)
 {
@@ -64,15 +62,48 @@ static BOOL WINAPI stop_run (DWORD ctrl_type)
 #else
 static void stop_run (int sig)
 {
-	signal  (SIGINT, SIG_IGN);
+	int e = errno;
 	qse_awk_stop (app_run);
-	signal  (SIGINT, stop_run);
+	errno = e;
 }
 #endif
 
+static void set_intr_run (void)
+{
+#ifdef _WIN32
+	SetConsoleCtrlHandler (stop_run, TRUE);
+#else
+	{
+		struct sigaction sa_int;
+
+		sa_int.sa_handler = stop_run;
+		sigemptyset (&sa_int.sa_mask);
+		sa_int.sa_flags = 0;
+		sigaction (SIGINT, &sa_int, NULL);
+	}
+#endif
+}
+
+static void unset_intr_run (void)
+{
+#ifdef _WIN32
+	SetConsoleCtrlHandler (stop_run, FALSE);
+#else
+	{
+		struct sigaction sa_int;
+
+		sa_int.sa_handler = SIG_DFL;
+		sigemptyset (&sa_int.sa_mask);
+		sa_int.sa_flags = 0;
+		sigaction (SIGINT, &sa_int, NULL);
+	}
+#endif
+}
+
 static void on_run_start (qse_awk_run_t* run, void* custom)
 {
 	app_run = run;
+	set_intr_run ();
 	dprint (QSE_T("[AWK ABOUT TO START]\n"));
 }
 
@@ -146,6 +177,7 @@ static void on_run_end (qse_awk_run_t* run, int errnum, void* data)
 	}
 	else dprint (QSE_T("[AWK ENDED SUCCESSFULLY]\n"));
 
+	unset_intr_run ();
 	app_run = NULL;
 }
 
@@ -515,8 +547,8 @@ static qse_awk_t* open_awk (void)
 static int awk_main (int argc, qse_char_t* argv[])
 {
 	qse_awk_t* awk;
-
 	qse_awk_runcbs_t runcbs;
+	struct sigaction sa_int;
 
 	int i, file_count = 0;
 	const qse_char_t* mfn = QSE_NULL;
@@ -561,7 +593,10 @@ static int awk_main (int argc, qse_char_t* argv[])
 #ifdef _WIN32
 	SetConsoleCtrlHandler (stop_run, TRUE);
 #else
-	signal (SIGINT, stop_run);
+	sa_int.sa_handler = stop_run;
+	sigemptyset (&sa_int.sa_mask);
+	sa_int.sa_flags = 0;
+	sigaction (SIGINT, &sa_int, NULL);
 #endif
 
 	runcbs.on_start = on_run_start;

qse/include/qse/cmn/fio.h

@@ -79,6 +79,7 @@ typedef qse_int64_t qse_fio_off_t;
 typedef enum qse_fio_seek_origin_t qse_fio_ori_t;
 
 typedef struct qse_fio_t qse_fio_t;
+typedef struct qse_fio_lck_t qse_fio_lck_t;
 
 struct qse_fio_t
 {
@@ -86,6 +87,14 @@ struct qse_fio_t
 	qse_fio_hnd_t handle;
 };
 
+struct qse_fio_lck_t
+{
+	int            type;   /* READ, WRITE */
+	qse_fio_off_t  offset; /* starting offset */
+	qse_fio_off_t  length; /* length */
+	qse_fio_ori_t  origin; /* origin */
+};
+
 #define QSE_FIO_MMGR(fio)   ((fio)->mmgr)
 #define QSE_FIO_HANDLE(fio) ((fio)->handle)
 
@@ -179,13 +188,41 @@ qse_ssize_t qse_fio_write (
 
 /****f* qse.cmn.fio/qse_fio_chmod
  * NAME
- *  ase_fio_chmod - change the file mode
+ *  qse_fio_chmod - change the file mode
  * SYNOPSIS
  */
 int qse_fio_chmod (
 	qse_fio_t* fio,
 	int mode
 );
+/******/
+
+/****f* qse.cmn.fio/qse_fio_sync
+ * NAME
+ *  qse_fio_sync - synchronize file contents into storage media
+ * DESCRIPTION
+ *  The qse_fio_sync() function is useful in determining the media error,
+ *  without which qse_fio_close() may succeed despite such an error.
+ * SYNOPSIS
+ */
+int qse_fio_sync (
+	qse_fio_t* fio
+);
+/******/
+
+
+/* TODO: qse_fio_lock, qse_fio_unlock */
+int qse_fio_lock ( 
+	qse_fio_t*     fio, 
+	qse_fio_lck_t* lck,
+	int            flags
+);
+
+int qse_fio_unlock (
+	qse_fio_t*     fio,
+	qse_fio_lck_t* lck,
+	int            flags
+);
 
 #ifdef __cplusplus
 }

qse/lib/cmn/fio.c

@@ -154,6 +154,7 @@ qse_fio_t* qse_fio_init (
 	else
 	{
 		int desired_access = 0;
+
 	#ifdef QSE_CHAR_IS_MCHAR
 		const qse_mchar_t* path_mb = path;
 	#else
@@ -440,3 +441,32 @@ int qse_fio_chmod (qse_fio_t* fio, int mode)
 	return QSE_FCHMOD (fio->handle, mode);
 #endif
 }
+
+int qse_fio_sync (qse_fio_t* fio)
+{
+#ifdef _WIN32
+	return (FlushFileBuffers (fio->handle) == FALSE)? -1: 0;
+#else
+	return QSE_FSYNC (fio->handle);
+#endif
+}
+
+int qse_fio_lock (qse_fio_t* fio, qse_fio_lck_t* lck, int flags)
+{
+	/* TODO: qse_fio_lock 
+	 * struct flock fl;
+	 * fl.l_type = F_RDLCK, F_WRLCK;
+	 * QSE_FCNTL (fio->handle, F_SETLK, &fl);
+	 */
+	return -1;
+}
+
+int qse_fio_unlock (qse_fio_t* fio, qse_fio_lck_t* lck, int flags)
+{
+	/* TODO: qse_fio_unlock 
+	 * struct flock fl;
+	 * fl.l_type = F_UNLCK;
+	 * QSE_FCNTL (fio->handle, F_SETLK, &fl);
+	 */
+	return -1;
+}

qse/lib/cmn/syscall.h

@@ -84,6 +84,18 @@
 	#define QSE_FCHMOD(handle,mode) fchmod(handle,mode)
 #endif
 
+#if defined(SYS_fsync)
+	#define QSE_FSYNC(handle) syscall(SYS_fsync,handle)
+#else
+	#define QSE_FSYNC(handle) fsync(handle)
+#endif
+
+#if defined(SYS_fcntl)
+	#define QSE_FCNTL(handle,cmd,arg) syscall(SYS_fcntl,handle,cmd,arg)
+#else
+	#define QSE_FCNTL(handle,cmd,arg) fcntl(handle,cmd,arg)
+#endif
+
 #ifdef SYS_dup2
 	#define QSE_DUP2(ofd,nfd) syscall(SYS_dup2,ofd,nfd)
 #else