#include <stdio.h>
#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
#include "term.h"
#include "visor.h"
struct file {
- FILE *fp;
+ int fd;
void *maddr;
size_t msize;
};
static int parse_args(int argc, char **argv);
static int init(void);
static void cleanup(void);
+static void resized(int x, int y);
/* file operations */
static vi_file *file_open(const char *path, unsigned int flags);
static void file_close(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);
+/* tty operations */
+static void tty_clear(void *cls);
+static void tty_clear_line(void *cls);
+static void tty_clear_line_at(int y, void *cls);
+static void tty_setcursor(int x, int y, void *cls);
+static void tty_putchar(char c, void *cls);
+static void tty_putchar_at(int x, int y, char c, void *cls);
+static void tty_scroll(int nlines, void *cls);
+static void tty_del_back(void *cls);
+static void tty_del_fwd(void *cls);
+static void tty_status(char *s, void *cls);
+static void tty_flush(void *cls);
+
static struct visor *vi;
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
+ tty_scroll, tty_del_back, tty_del_fwd, tty_status, tty_flush
};
-*/
int main(int argc, char **argv)
{
return 1;
}
+ vi_redraw(vi);
+
for(;;) {
int c = term_getchar();
switch(c) {
case 27:
case 'q':
+ case -1:
goto end;
}
}
return -1;
}
vi_set_fileops(vi, &fops);
+ vi_set_ttyops(vi, &ttyops);
for(i=0; i<num_fpaths; i++) {
- /* open fpaths[i] */
+ if(!vi_new_buf(vi, fpaths[i])) {
+ return -1;
+ }
}
+
+ term_resize_func(resized);
return 0;
}
term_cleanup();
}
+static void resized(int x, int y)
+{
+ vi_term_size(vi, x, y);
+}
+
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;
+ if(!(file = calloc(1, sizeof *file))) {
+ return 0;
+ }
+ if((file->fd = open(path, flags)) == -1) {
+ free(file);
+ return 0;
+ }
+ return (vi_file*)file;
+}
+
+static void file_close(vi_file *vif)
+{
+ struct file *file = vif;
+ if(!file) return;
- case VI_WRONLY:
- attr = (flags & VI_CREAT) ? "w+b" : "wb";
- break;
+ if(file->fd >= 0) {
+ if(file->maddr) {
+ file_unmap(file);
+ }
+ close(file->fd);
+ }
+ free(file);
+}
- case VI_RDWR:
- attr = (flags & VI_CREAT) ? "w+b" : "r+b";
- break;
+static long file_size(vi_file *vif)
+{
+ struct file *file = vif;
+ struct stat st;
- default:
- return 0;
+ if(fstat(file->fd, &st) == -1) {
+ return -1;
}
+ return st.st_size;
+}
+static void *file_map(vi_file *vif)
+{
+ struct file *file = vif;
+ long sz;
- if(!(file = calloc(1, sizeof *file))) {
+ if((sz = file_size(file)) == -1) {
return 0;
}
- if(!(file->fp = fopen(path, attr))) {
- free(file);
+ if((file->maddr = mmap(0, sz, PROT_READ, MAP_PRIVATE, file->fd, 0)) == (void*)-1) {
return 0;
}
- return file;
+ file->msize = sz;
+ return file->maddr;
}
-static void file_close(vi_file *file)
+static void file_unmap(vi_file *vif)
{
+ struct file *file = vif;
+ if(file->maddr) {
+ munmap(file->maddr, file->msize);
+ }
+ file->maddr = 0;
}
-static long file_size(vi_file *file)
+static long file_read(vi_file *vif, void *buf, long count)
{
- return -1;
+ struct file *file = vif;
+ return read(file->fd, buf, count);
}
-static void *file_map(vi_file *file)
+static long file_write(vi_file *vif, void *buf, long count)
{
- return 0;
+ struct file *file = vif;
+ return write(file->fd, buf, count);
+}
+
+static long file_seek(vi_file *vif, long offs, int whence)
+{
+ struct file *file = vif;
+ return lseek(file->fd, offs, whence);
+}
+
+/* tty operations */
+
+static void tty_clear(void *cls)
+{
+ term_clear();
+}
+
+static void tty_clear_line(void *cls)
+{
+ /* TODO */
+}
+
+static void tty_clear_line_at(int y, void *cls)
+{
+ term_setcursor(y, 0);
+ /* TODO */
+}
+
+static void tty_setcursor(int x, int y, void *cls)
+{
+ term_setcursor(y, x);
+}
+
+static void tty_putchar(char c, void *cls)
+{
+ term_putchar(c);
+}
+
+static void tty_putchar_at(int x, int y, char c, void *cls)
+{
+ term_setcursor(y, x);
+ term_putchar(c);
+}
+
+static void tty_scroll(int nlines, void *cls)
+{
+ /* TODO */
}
-static void file_unmap(vi_file *file)
+static void tty_del_back(void *cls)
{
+ /* TODO */
}
-static long file_read(vi_file *file, void *buf, long count)
+static void tty_del_fwd(void *cls)
{
- return -1;
+ /* TODO */
}
-static long file_write(vi_file *file, void *buf, long count)
+static void tty_status(char *s, void *cls)
{
- return -1;
+ /* TODO */
}
-static long file_seek(vi_file *file, long offs, int whence)
+static void tty_flush(void *cls)
{
- return -1;
+ term_flush();
}