PDCLIB-16: Add _unlocked variations of all I/O routines; move work into these versions

[pdclib] / functions / stdio / fgetc.c

diff --git a/functions/stdio/fgetc.c b/functions/stdio/fgetc.c
index 29522c1d64ee50d917b963a26ae12e082a2fd5c5..ae7a8356685540e2582a1c5dcc7a9b350a530c18 100644 (file)
--- a/functions/stdio/fgetc.c
+++ b/functions/stdio/fgetc.c
@@ -12,7 +12,7 @@
 
 #include <_PDCLIB_glue.h>
 
-int fgetc( struct _PDCLIB_file_t * stream )
+int fgetc_unlocked( struct _PDCLIB_file_t * stream )
 {
     if ( _PDCLIB_prepread( stream ) == EOF )
     {
@@ -25,6 +25,14 @@ int fgetc( struct _PDCLIB_file_t * stream )
     return (unsigned char)stream->buffer[stream->bufidx++];
 }
 
+int fgetc( struct _PDCLIB_file_t * stream )
+{
+    flockfile( stream );
+    int c = fgetc_unlocked( stream );
+    funlockfile( stream );
+    return c;
+}
+
 #endif
 
 #ifdef TEST