preliminary step implementing virtual fileio

git-svn-id: http://svn.osgeo.org/metacrs/proj/trunk@2344 4e78687f-474d-0410-85f9-8d5e500ac6b2

1 files changed, 10 insertions, 0 deletions

diff --git a/src/projects.h b/src/projects.h
index f9dcea64..fc64ba59 100644
--- a/src/projects.h
+++ b/src/projects.h
@@ -125,12 +125,15 @@ extern double hypot(double, double);
 #define DIR_CHAR '/'
 #endif
 
+struct projFileAPI_t;
+
 /* proj thread context */
 typedef struct {
     int	    last_errno;
     int     debug_level;
     void    (*logger)(void *, int, const char *);
     void    *app_data;
+    struct projFileAPI_t *fileapi;
 } projCtx_t;
 
 /* datum_type values */
@@ -391,6 +394,13 @@ typedef struct _PJ_GridCatalog {
 } PJ_GridCatalog;
 
 
+/* file api */
+PAFile pj_ctx_fopen(projCtx ctx, const char *filename, const char *access);
+size_t pj_ctx_fread(projCtx ctx, void *buffer, size_t size, size_t nmemb, PAFile file);
+int    pj_ctx_fseek(projCtx ctx, PAFile file, long offset, int whence);
+long   pj_ctx_ftell(projCtx ctx, PAFile file);
+void   pj_ctx_fclose(projCtx ctx, PAFile file);
+
 /* procedure prototypes */
 double dmstor(const char *, char **);
 double dmstor_ctx(projCtx ctx, const char *, char **);