patch-2.4.15 linux/include/linux/intermezzo_upcall.h

• Lines: 147
• Date: Sun Nov 11 10:20:21 2001
• Orig file: v2.4.14/linux/include/linux/intermezzo_upcall.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.14/linux/include/linux/intermezzo_upcall.h linux/include/linux/intermezzo_upcall.h
@@ -0,0 +1,146 @@
+/*
+ * Based on cfs.h from Coda, but revamped for increased simplicity.
+ * Linux modifications by Peter Braam, Aug 1996
+ * Rewritten for InterMezzo
+ */
+
+#ifndef _PRESTO_HEADER_
+#define _PRESTO_HEADER_
+
+
+/* upcall.c */
+#define SYNCHRONOUS 0
+#define ASYNCHRONOUS 1
+
+int lento_permit(int minor, int pathlen, int fsetnamelen, char *path, char *fset);
+int lento_opendir(int minor, int pathlen, char *path, int async);
+int lento_kml(int minor, unsigned int offset, unsigned int first_recno,
+              unsigned int length, unsigned int last_recno, int namelen,
+              char *fsetname);
+int lento_open(int minor, int pathlen, char *path);
+int lento_journal(int minor, char *page, int async);
+int lento_release_permit(int minor, int cookie);
+
+/*
+ * Kernel <--> Lento communications.
+ */
+/* upcalls */
+#define LENTO_PERMIT    1
+#define LENTO_JOURNAL   2
+#define LENTO_OPENDIR   3
+#define LENTO_OPEN      4
+#define LENTO_SIGNAL    5
+#define LENTO_KML       6
+#define LENTO_COOKIE    7
+
+/*         Lento <-> Presto  RPC arguments       */
+struct lento_up_hdr {
+        unsigned int opcode;
+        unsigned int unique;    /* Keep multiple outstanding msgs distinct */
+        u_short pid;            /* Common to all */
+        u_short uid;
+};
+
+/* This structure _must_ sit at the beginning of the buffer */
+struct lento_down_hdr {
+        unsigned int opcode;
+        unsigned int unique;    
+        unsigned int result;
+};
+
+/* lento_permit: */
+struct lento_permit_in {
+        struct lento_up_hdr uh;
+        int pathlen;
+        int fsetnamelen;
+        char path[0];
+};
+struct lento_permit_out {
+        struct lento_down_hdr dh;
+};
+
+
+/* lento_opendir: */
+struct lento_opendir_in {
+        struct lento_up_hdr uh;
+        int async;
+        int pathlen;
+        char path[0];
+};
+struct lento_opendir_out {
+        struct lento_down_hdr dh;
+};
+
+
+/* lento_kml: */
+struct lento_kml_in {
+        struct lento_up_hdr uh;
+        unsigned int offset;
+        unsigned int first_recno;
+        unsigned int length;
+        unsigned int last_recno;
+        int namelen;
+        char fsetname[0];
+};
+
+struct lento_kml_out {
+        struct lento_down_hdr dh;
+};
+
+
+/* lento_open: */
+struct lento_open_in {
+        struct lento_up_hdr uh;
+        int pathlen;
+        char path[0];
+};
+struct lento_open_out {
+    struct lento_down_hdr dh;
+};
+
+/* lento_response_cookie */
+struct lento_response_cookie_in {
+        struct lento_up_hdr uh;
+        int cookie;
+};
+
+struct lento_response_cookie_out {
+    struct lento_down_hdr dh;
+};
+
+
+struct lento_mknod {
+  struct lento_down_hdr dh;
+  int    major;
+  int    minor;
+  int    mode;
+  char   path[0];
+};
+
+
+/* NB: every struct below begins with an up_hdr */
+union up_args {
+    struct lento_up_hdr uh;             
+    struct lento_permit_in lento_permit;
+    struct lento_open_in lento_open;
+    struct lento_opendir_in lento_opendir;
+    struct lento_kml_in lento_kml;
+    struct lento_response_cookie_in lento_response_cookie;
+};
+
+union down_args {
+    struct lento_down_hdr dh;
+    struct lento_permit_out lento_permit;
+    struct lento_open_out lento_open;
+    struct lento_opendir_out lento_opendir;
+    struct lento_kml_out lento_kml;
+    struct lento_response_cookie_out lento_response_cookie;
+};    
+
+#include "intermezzo_psdev.h"
+
+int lento_upcall(int minor, int read_size, int *rep_size, 
+                 union up_args *buffer, int async,
+                 struct upc_req *rq );
+#endif 
+