Add POSIX emulation for IRQ_* macros; Add Qt support.

[bertos.git] / cfg / os.h

diff --git a/cfg/os.h b/cfg/os.h
index 9a8037685f21e55be760f83320ee7088c8fd1f63..041650400fe91b0f3e7b55bbdf2c504bc774032d 100755 (executable)
--- a/cfg/os.h
+++ b/cfg/os.h
@@ -1,7 +1,7 @@
 /*!
  * \file
  * <!--
- * Copyright 2004 Develer S.r.l. (http://www.develer.com/)
+ * Copyright 2004, 2005 Develer S.r.l. (http://www.develer.com/)
  * This file is part of DevLib - See README.devlib for information.
  * -->
  *
@@ -14,6 +14,9 @@
 
 /*#*
  *#* $Log$
+ *#* Revision 1.3  2005/11/27 03:02:40  bernie
+ *#* Add POSIX emulation for IRQ_* macros; Add Qt support.
+ *#*
  *#* Revision 1.2  2005/11/04 16:20:01  bernie
  *#* Fix reference to README.devlib in header.
  *#*
@@ -27,9 +30,9 @@
 #ifndef DEVLIB_OS_H
 #define DEVLIB_OS_H
 
-
 /*! Macro to include OS-specific versions of the headers. */
 #define OS_HEADER(module)  PP_STRINGIZE(PP_CAT3(module, _, OS_ID).h)
+#define OS_CSOURCE(module) PP_STRINGIZE(PP_CAT3(module, _, OS_ID).c)
 
 /*
  * OS autodetection (Some systems trigger multiple OS definitions)
@@ -44,7 +47,40 @@
 #ifdef __unix__
        #define OS_UNIX   1
        #define OS_POSIX  1  /* Not strictly UNIX, but no way to autodetect it. */
-       #define OS_ID     unix
+       #define OS_ID     posix
+
+       /*
+        * The POSIX moral equivalent of disabling IRQs is disabling signals.
+        */
+       #define _XOPEN_SOURCE 600 /* Avoid BSDish stuff */
+       #undef _GNU_SOURCE /* This implies _BSD_SOURCE and is predefined on Linux. */
+       #include <signal.h>
+       typedef sigset_t cpuflags_t;
+       #define IRQ_DISABLE \
+       do { \
+               sigset_t sigs; \
+               sigfillset(&sigs); \
+               sigprocmask(SIG_BLOCK, &sigs, NULL); \
+       } while (0)
+
+       #define IRQ_ENABLE \
+       do { \
+               sigset_t sigs; \
+               sigemptyset(&sigs); \
+               sigprocmask(SIG_UNBLOCK, &sigs, NULL); \
+       } while (0)
+
+       #define IRQ_SAVE_DISABLE(old_sigs) \
+       do { \
+               sigset_t sigs; \
+               sigemptyset(&sigs); \
+               sigprocmask(SIG_SETMASK, &sigs, &old_sigs); \
+       } while (0)
+
+       #define IRQ_RESTORE(old_sigs) \
+       do { \
+               sigprocmask(SIG_SETMASK, &old_sigs, NULL); \
+       } while (0)
 #else
        #define OS_UNIX   0
        #define OS_POSIX  0
@@ -63,28 +99,32 @@
 #endif
 
 /*
- * Summarize hosted environments as OS_HOSTED.
+ * We want Qt and other frameworks to look like OSes because you would
+ * tipically want their portable abstractions if you're using one of these.
  */
-#if OS_WIN32 || OS_UNIX
-       #define OS_HOSTED   1
+#if defined(_QT)
+       #define OS_QT 1
+       #undef  OS_ID
+       #define OS_ID qt
 #else
-       #define OS_HOSTED   0
+       #define OS_QT 0
 #endif
 
+
+
 /*
- * Summarize embedded environments as OS_EMBEDDED.
+ * Summarize hosted environments as OS_HOSTED and embedded
+ * environment with OS_EMBEDDED.
  */
-#if CPU_AVR || CPU_DSP56K || CPU_I196 || defined(__embedded__)
-       #define OS_EMBEDDED  1
+#if OS_WIN32 || OS_UNIX
+       #define OS_HOSTED   1
+       #define OS_EMBEDDED 0
 #else
-       #define OS_EMBEDDED  0
+       #define OS_HOSTED   0
+       #define OS_EMBEDDED 1
 #endif
 
-
 /* Self-check for the detection */
-#if CPU_I196 + CPU_X86 + CPU_DSP56K + CPU_AVR == 0
-       #error Unknown CPU
-#endif
 #if !defined(OS_ID)
        #error OS_ID not defined
 #endif