moving fwd, very slowly

[visor] / visor / src / main_unix.c

diff --git a/visor/src/main_unix.c b/visor/src/main_unix.c
index 9db4e36..6430272 100644 (file)
--- a/visor/src/main_unix.c
+++ b/visor/src/main_unix.c
@@ -1,13 +1,50 @@
 #include <stdio.h>
+#include <stdlib.h>
 #include "term.h"
+#include "visor.h"
+
+struct file {
+       FILE *fp;
+       void *maddr;
+       size_t msize;
+};
 
 static int parse_args(int argc, char **argv);
 static int init(void);
 static void cleanup(void);
+/* file operations */
+static vi_file *file_open(const char *path, unsigned int flags);
+static void file_close(vi_file *file);
+static long file_size(vi_file *file);
+static void *file_map(vi_file *file);
+static void file_unmap(vi_file *file);
+static long file_read(vi_file *file, void *buf, long count);
+static long file_write(vi_file *file, void *buf, long count);
+static long file_seek(vi_file *file, long offs, int whence);
+
+static struct visor *vi;
 
 static int num_fpaths;
 static char **fpaths;
 
+static struct vi_alloc alloc = {
+       malloc, free, realloc
+};
+
+static struct vi_fileops fops = {
+       file_open, file_close, file_size,
+       file_map, file_unmap,
+       file_read, file_write, file_seek
+};
+
+/*
+static struct vi_ttyops ttyops = {
+       tty_clear, tty_clear_line, tty_clear_line_at,
+       tty_setcursor, tty_putchar, tty_putchar_at,
+       tty_scroll, tty_del_back, tty_del_fwd, tty_status
+};
+*/
+
 int main(int argc, char **argv)
 {
        if(parse_args(argc, argv) == -1) {
@@ -58,6 +95,11 @@ static int init(void)
        }
        term_clear();
 
+       if(!(vi = vi_create(&alloc))) {
+               return -1;
+       }
+       vi_set_fileops(vi, &fops);
+
        for(i=0; i<num_fpaths; i++) {
                /* open fpaths[i] */
        }
@@ -66,5 +108,74 @@ static int init(void)
 
 static void cleanup(void)
 {
+       if(vi) {
+               vi_destroy(vi);
+       }
        term_cleanup();
 }
+
+static vi_file *file_open(const char *path, unsigned int flags)
+{
+       struct file *file;
+       const char *attr;
+
+       switch(flags & 0xff) {
+       case VI_RDONLY:
+               attr = "rb";
+               break;
+
+       case VI_WRONLY:
+               attr = (flags & VI_CREAT) ? "w+b" : "wb";
+               break;
+
+       case VI_RDWR:
+               attr = (flags & VI_CREAT) ? "w+b" : "r+b";
+               break;
+
+       default:
+               return 0;
+       }
+
+
+       if(!(file = calloc(1, sizeof *file))) {
+               return 0;
+       }
+       if(!(file->fp = fopen(path, attr))) {
+               free(file);
+               return 0;
+       }
+       return file;
+}
+
+static void file_close(vi_file *file)
+{
+}
+
+static long file_size(vi_file *file)
+{
+       return -1;
+}
+
+static void *file_map(vi_file *file)
+{
+       return 0;
+}
+
+static void file_unmap(vi_file *file)
+{
+}
+
+static long file_read(vi_file *file, void *buf, long count)
+{
+       return -1;
+}
+
+static long file_write(vi_file *file, void *buf, long count)
+{
+       return -1;
+}
+
+static long file_seek(vi_file *file, long offs, int whence)
+{
+       return -1;
+}