Merge branch 'master' of git://git.denx.de/u-boot-mips

[pandora-u-boot.git] / include / os.h

diff --git a/include/os.h b/include/os.h
index f74766d..699682a 100644 (file)
--- a/include/os.h
+++ b/include/os.h
@@ -1,4 +1,9 @@
 /*
+ * Operating System Interface
+ *
+ * This provides access to useful OS routines for the sandbox architecture.
+ * They are kept in a separate file so we can include system headers.
+ *
  * Copyright (c) 2011 The Chromium OS Authors.
  * See file CREDITS for list of people who contributed to this
  * project.
@@ -19,15 +24,11 @@
  * MA 02111-1307 USA
  */
 
-/*
- * Operating System Interface
- *
- * This provides access to useful OS routines from the sandbox architecture
- */
-
 #ifndef __OS_H__
 #define __OS_H__
 
+struct sandbox_state;
+
 /**
  * Access to the OS read() system call
  *
@@ -72,6 +73,12 @@ off_t os_lseek(int fd, off_t offset, int whence);
  */
 int os_open(const char *pathname, int flags);
 
+#define OS_O_RDONLY    0
+#define OS_O_WRONLY    1
+#define OS_O_RDWR      2
+#define OS_O_MASK      3       /* Mask for read/write flags */
+#define OS_O_CREAT     0100
+
 /**
  * Access to the OS close() system call
  *
@@ -88,7 +95,7 @@ int os_close(int fd);
  *
  * @param exit_code    exit code for U-Boot
  */
-void os_exit(int exit_code);
+void os_exit(int exit_code) __attribute__((noreturn));
 
 /**
  * Put tty into raw mode to mimic serial console better
@@ -117,4 +124,16 @@ void os_usleep(unsigned long usec);
  */
 u64 os_get_nsec(void);
 
+/**
+ * Parse arguments and update sandbox state.
+ *
+ * @param state                Sandbox state to update
+ * @param argc         Argument count
+ * @param argv         Argument vector
+ * @return 0 if ok, and program should continue;
+ *     1 if ok, but program should stop;
+ *     -1 on error: program should terminate.
+ */
+int os_parse_args(struct sandbox_state *state, int argc, char *argv[]);
+
 #endif