Vulkan: detect vmem (#416)

src/common/io/io.h

@@ -88,7 +88,16 @@ bool ffPathExists(const char* path, FFPathType pathType);
 #endif
 
 // Not thread safe!
-void ffSuppressIO(bool suppress);
+bool ffSuppressIO(bool suppress);
+
+static inline void ffUnsuppressIO(bool* suppressed)
+{
+    if (!*suppressed) return;
+    ffSuppressIO(false);
+    *suppressed = false;
+}
+
+#define FF_SUPPRESS_IO() bool __attribute__((__cleanup__(ffUnsuppressIO), __unused__)) io_suppressed__ = ffSuppressIO(true)
 
 void ffListFilesRecursively(const char* path);
 

src/common/io/io_unix.c

@@ -163,7 +163,7 @@ void ffGetTerminalResponse(const char* request, const char* format, ...)
     va_end(args);
 }
 
-void ffSuppressIO(bool suppress)
+bool ffSuppressIO(bool suppress)
 {
     static bool init = false;
     static int origOut = -1;
@@ -173,7 +173,7 @@ void ffSuppressIO(bool suppress)
     if(!init)
     {
         if(!suppress)
-            return;
+            return true;
 
         origOut = dup(STDOUT_FILENO);
         origErr = dup(STDERR_FILENO);
@@ -182,13 +182,14 @@ void ffSuppressIO(bool suppress)
     }
 
     if(nullFile == -1)
-        return;
+        return false;
 
     fflush(stdout);
     fflush(stderr);
 
     dup2(suppress ? nullFile : origOut, STDOUT_FILENO);
     dup2(suppress ? nullFile : origErr, STDERR_FILENO);
+    return true;
 }
 
 void listFilesRecursively(FFstrbuf* folder, uint8_t indentation, const char* folderName)

src/common/io/io_windows.c

@@ -111,9 +111,10 @@ bool ffPathExists(const char* path, FFPathType type)
     return false;
 }
 
-void ffSuppressIO(bool suppress)
+bool ffSuppressIO(bool suppress)
 {
     (void) suppress; //Not implemented.
+    return false;
 }
 
 void listFilesRecursively(FFstrbuf* folder, uint8_t indentation, const char* folderName)