From 360b2b7ab8fd7cf337f02e260346a0f0ecbb8064 Mon Sep 17 00:00:00 2001
From: patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3>
Date: Tue, 20 Mar 2007 16:51:12 +0000
Subject: Restructure header files for POSIX compliance; eliminate compile
 warnings

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@107 42af7a65-404d-4744-a932-0658087f49c3
---
 nuttx/include/unistd.h | 54 +++++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 51 insertions(+), 3 deletions(-)

(limited to 'nuttx/include/unistd.h')

diff --git a/nuttx/include/unistd.h b/nuttx/include/unistd.h
index faf50e3a3..164b5368e 100644
--- a/nuttx/include/unistd.h
+++ b/nuttx/include/unistd.h
@@ -53,6 +53,49 @@
 
 #define ATEXIT_MAX 1
 
+/* Values for seeking */
+
+#define SEEK_SET    0  /* From the start of the file */
+#define SEEK_CUR    1  /* From the current file offset */
+#define SEEK_END    2  /* From the end of the file */
+
+/* Bit values for the second argument to access */
+
+#define F_OK        0  /* Test existence */
+#define R_OK        1  /* Test read permission */
+#define W_OK        2  /* Test write permission */
+#define X_OK        4  /* Test execute permission */
+
+/* POSIX feature set macros */
+
+#define  POSIX_VERSION
+#undef  _POSIX_SAVED_IDS
+#undef  _POSIX_JOB_CONTROL
+#define _POSIX_REALTIME_SIGNALS 1
+#define _POSIX_MESSAGE_PASSING 1
+#undef  _POSIX_MAPPED_FILES
+#undef  _POSIX_SHARED_MEMORY_OBJECTS
+#define _POSIX_PRIORITY_SCHEDULING 1
+#define _POSIX_TIMERS
+#undef  _POSIX_MEMLOCK
+#undef  _POSIX_MEMLOCK_RANGE
+#undef  _POSIX_FSYNC
+#define _POSIX_SYNCHRONIZED_IO
+#undef  _POSIX_ASYNCHRONOUS_IO
+#undef  _POSIX_PRIORITIZED_IO
+
+/* Execution time constants (not supported) */
+
+#undef  _POSIX_CHOWN_RESTRICTED
+#undef  _POSIX_NO_TRUNC
+#undef  _POSIX_VDISABLE
+
+#define _POSIX_SYNC_IO
+#undef  _POSIX_ASYNC_IO
+#undef  _POSIX_PRIO_IO
+
+#define fsync(f)
+
 /************************************************************
  * Global Function Prototypes
  ************************************************************/
@@ -70,12 +113,17 @@ extern "C" {
 EXTERN pid_t getpid(void);
 EXTERN void _exit(int status) noreturn_function;
 EXTERN unsigned int sleep(unsigned int seconds);
-EXTERN void usleep(unsigned long usec);
+EXTERN void  usleep(unsigned long usec);
 
 /* File descriptor operations */
 
-EXTERN int dup(int fildes);
-EXTERN int dup2(int fildes1, int fildes2);
+EXTERN int   close(int fd);
+EXTERN int   dup(int fildes);
+EXTERN int   dup2(int fildes1, int fildes2);
+EXTERN off_t lseek(int fd, off_t offset, int whence);
+EXTERN int   read(int fd, void *buf, unsigned int nbytes);
+EXTERN int   unlink(const char *path);
+EXTERN int   write(int fd, const void *buf, unsigned int nbytes);
 
 #undef EXTERN
 #if defined(__cplusplus)
-- 
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