474 lines
14 KiB
C
474 lines
14 KiB
C
/*
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* Server-side console management
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*
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* Copyright (C) 1998 Alexandre Julliard
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*
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* FIXME: all this stuff is a hack to avoid breaking
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* the client-side console support.
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*/
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#include <assert.h>
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#include <fcntl.h>
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#include <signal.h>
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/errno.h>
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#include <sys/stat.h>
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#include <sys/time.h>
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#include <sys/types.h>
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#include <time.h>
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#include <unistd.h>
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#include "winerror.h"
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#include "winnt.h"
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#include "wincon.h"
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#include "server/thread.h"
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struct screen_buffer;
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struct console_input
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{
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struct object obj; /* object header */
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int fd; /* Unix file descriptor */
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int mode; /* input mode */
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struct screen_buffer *output; /* associated screen buffer */
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int recnum; /* number of input records */
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INPUT_RECORD *records; /* input records */
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};
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struct screen_buffer
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{
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struct object obj; /* object header */
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int fd; /* Unix file descriptor */
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int mode; /* output mode */
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struct console_input *input; /* associated console input */
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int cursor_size; /* size of cursor (percentage filled) */
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int cursor_visible;/* cursor visibility flag */
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int pid; /* xterm pid (hack) */
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char *title; /* console title */
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};
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static void console_input_dump( struct object *obj, int verbose );
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static int console_input_add_queue( struct object *obj, struct wait_queue_entry *entry );
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static void console_input_remove_queue( struct object *obj, struct wait_queue_entry *entry );
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static int console_input_signaled( struct object *obj, struct thread *thread );
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static int console_input_get_read_fd( struct object *obj );
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static void console_input_destroy( struct object *obj );
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static void screen_buffer_dump( struct object *obj, int verbose );
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static int screen_buffer_add_queue( struct object *obj, struct wait_queue_entry *entry );
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static void screen_buffer_remove_queue( struct object *obj, struct wait_queue_entry *entry );
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static int screen_buffer_signaled( struct object *obj, struct thread *thread );
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static int screen_buffer_get_write_fd( struct object *obj );
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static void screen_buffer_destroy( struct object *obj );
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/* common routine */
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static int console_get_info( struct object *obj, struct get_file_info_reply *reply );
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static const struct object_ops console_input_ops =
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{
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console_input_dump,
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console_input_add_queue,
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console_input_remove_queue,
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console_input_signaled,
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no_satisfied,
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console_input_get_read_fd,
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no_write_fd,
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no_flush,
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console_get_info,
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console_input_destroy
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};
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static const struct object_ops screen_buffer_ops =
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{
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screen_buffer_dump,
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screen_buffer_add_queue,
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screen_buffer_remove_queue,
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screen_buffer_signaled,
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no_satisfied,
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no_read_fd,
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screen_buffer_get_write_fd,
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no_flush,
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console_get_info,
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screen_buffer_destroy
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};
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static const struct select_ops select_ops =
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{
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default_select_event,
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NULL /* we never set a timeout on a console */
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};
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int create_console( int fd, struct object *obj[2] )
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{
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struct console_input *console_input;
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struct screen_buffer *screen_buffer;
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int read_fd, write_fd;
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if ((read_fd = (fd != -1) ? dup(fd) : dup(0)) == -1)
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{
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file_set_error();
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return 0;
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}
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if ((write_fd = (fd != -1) ? dup(fd) : dup(1)) == -1)
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{
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file_set_error();
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close( read_fd );
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return 0;
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}
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if (!(console_input = mem_alloc( sizeof(struct console_input) )))
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{
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close( read_fd );
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close( write_fd );
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return 0;
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}
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if (!(screen_buffer = mem_alloc( sizeof(struct screen_buffer) )))
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{
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close( read_fd );
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close( write_fd );
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free( console_input );
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return 0;
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}
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init_object( &console_input->obj, &console_input_ops, NULL );
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init_object( &screen_buffer->obj, &screen_buffer_ops, NULL );
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console_input->fd = read_fd;
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console_input->mode = ENABLE_PROCESSED_INPUT | ENABLE_LINE_INPUT |
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ENABLE_ECHO_INPUT | ENABLE_MOUSE_INPUT;
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console_input->output = screen_buffer;
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console_input->recnum = 0;
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console_input->records = NULL;
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screen_buffer->fd = write_fd;
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screen_buffer->mode = ENABLE_PROCESSED_OUTPUT | ENABLE_WRAP_AT_EOL_OUTPUT;
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screen_buffer->input = console_input;
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screen_buffer->cursor_size = 100;
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screen_buffer->cursor_visible = 1;
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screen_buffer->pid = 0;
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screen_buffer->title = strdup( "Wine console" );
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CLEAR_ERROR();
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obj[0] = &console_input->obj;
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obj[1] = &screen_buffer->obj;
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return 1;
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}
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int set_console_fd( int handle, int fd, int pid )
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{
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struct console_input *input;
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struct screen_buffer *output;
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struct object *obj;
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int fd_in, fd_out;
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if (!(obj = get_handle_obj( current->process, handle, 0, NULL )))
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return 0;
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if (obj->ops == &console_input_ops)
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{
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input = (struct console_input *)obj;
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output = input->output;
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grab_object( output );
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}
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else if (obj->ops == &screen_buffer_ops)
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{
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output = (struct screen_buffer *)obj;
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input = output->input;
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grab_object( input );
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}
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else
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{
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SET_ERROR( ERROR_INVALID_HANDLE );
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release_object( obj );
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return 0;
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}
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if ((fd_in = dup(fd)) == -1)
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{
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file_set_error();
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release_object( input );
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release_object( output );
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return 0;
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}
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if ((fd_out = dup(fd)) == -1)
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{
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file_set_error();
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close( fd_in );
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release_object( input );
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release_object( output );
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return 0;
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}
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close( input->fd );
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close( output->fd );
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input->fd = fd_in;
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output->fd = fd_out;
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output->pid = pid;
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release_object( input );
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release_object( output );
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return 1;
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}
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int get_console_mode( int handle, int *mode )
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{
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struct object *obj;
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int ret = 0;
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if (!(obj = get_handle_obj( current->process, handle, GENERIC_READ, NULL )))
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return 0;
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if (obj->ops == &console_input_ops)
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{
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*mode = ((struct console_input *)obj)->mode;
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ret = 1;
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}
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else if (obj->ops == &screen_buffer_ops)
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{
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*mode = ((struct screen_buffer *)obj)->mode;
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ret = 1;
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}
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else SET_ERROR( ERROR_INVALID_HANDLE );
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release_object( obj );
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return ret;
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}
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int set_console_mode( int handle, int mode )
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{
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struct object *obj;
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int ret = 0;
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if (!(obj = get_handle_obj( current->process, handle, GENERIC_READ, NULL )))
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return 0;
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if (obj->ops == &console_input_ops)
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{
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((struct console_input *)obj)->mode = mode;
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ret = 1;
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}
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else if (obj->ops == &screen_buffer_ops)
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{
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((struct screen_buffer *)obj)->mode = mode;
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ret = 1;
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}
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else SET_ERROR( ERROR_INVALID_HANDLE );
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release_object( obj );
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return ret;
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}
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/* set misc console information (output handle only) */
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int set_console_info( int handle, struct set_console_info_request *req, const char *title )
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{
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struct screen_buffer *console;
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if (!(console = (struct screen_buffer *)get_handle_obj( current->process, handle,
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GENERIC_WRITE, &screen_buffer_ops )))
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return 0;
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if (req->mask & SET_CONSOLE_INFO_CURSOR)
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{
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console->cursor_size = req->cursor_size;
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console->cursor_visible = req->cursor_visible;
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}
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if (req->mask & SET_CONSOLE_INFO_TITLE)
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{
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if (console->title) free( console->title );
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console->title = strdup( title );
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}
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release_object( console );
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return 1;
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}
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/* get misc console information (output handle only) */
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int get_console_info( int handle, struct get_console_info_reply *reply, const char **title )
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{
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struct screen_buffer *console;
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if (!(console = (struct screen_buffer *)get_handle_obj( current->process, handle,
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GENERIC_READ, &screen_buffer_ops )))
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return 0;
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reply->cursor_size = console->cursor_size;
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reply->cursor_visible = console->cursor_visible;
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reply->pid = console->pid;
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*title = console->title;
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release_object( console );
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return 1;
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}
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/* add input events to a console input queue */
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int write_console_input( int handle, int count, INPUT_RECORD *records )
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{
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INPUT_RECORD *new_rec;
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struct console_input *console;
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if (!(console = (struct console_input *)get_handle_obj( current->process, handle,
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GENERIC_WRITE, &console_input_ops )))
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return -1;
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if (!(new_rec = realloc( console->records,
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(console->recnum + count) * sizeof(INPUT_RECORD) )))
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{
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SET_ERROR( ERROR_NOT_ENOUGH_MEMORY );
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release_object( console );
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return -1;
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}
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console->records = new_rec;
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memcpy( new_rec + console->recnum, records, count * sizeof(INPUT_RECORD) );
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console->recnum += count;
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release_object( console );
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return count;
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}
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/* retrieve a pointer to the console input records */
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int read_console_input( int handle, int count, int flush )
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{
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struct console_input *console;
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if (!(console = (struct console_input *)get_handle_obj( current->process, handle,
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GENERIC_READ, &console_input_ops )))
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return -1;
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if ((count < 0) || (count > console->recnum)) count = console->recnum;
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send_reply( current, -1, 1, console->records, count * sizeof(INPUT_RECORD) );
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if (flush)
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{
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int i;
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for (i = count; i < console->recnum; i++)
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console->records[i-count] = console->records[i];
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if ((console->recnum -= count) > 0)
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{
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INPUT_RECORD *new_rec = realloc( console->records,
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console->recnum * sizeof(INPUT_RECORD) );
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if (new_rec) console->records = new_rec;
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}
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else
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{
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free( console->records );
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console->records = NULL;
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}
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}
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release_object( console );
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return count;
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}
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static void console_input_dump( struct object *obj, int verbose )
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{
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struct console_input *console = (struct console_input *)obj;
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assert( obj->ops == &console_input_ops );
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fprintf( stderr, "Console input fd=%d\n", console->fd );
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}
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static int console_input_add_queue( struct object *obj, struct wait_queue_entry *entry )
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{
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struct console_input *console = (struct console_input *)obj;
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assert( obj->ops == &console_input_ops );
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if (!obj->head) /* first on the queue */
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{
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if (!add_select_user( console->fd, READ_EVENT, &select_ops, console ))
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{
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SET_ERROR( ERROR_OUTOFMEMORY );
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return 0;
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}
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}
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add_queue( obj, entry );
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return 1;
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}
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static void console_input_remove_queue( struct object *obj, struct wait_queue_entry *entry )
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{
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struct console_input *console = (struct console_input *)grab_object(obj);
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assert( obj->ops == &console_input_ops );
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remove_queue( obj, entry );
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if (!obj->head) /* last on the queue is gone */
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remove_select_user( console->fd );
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release_object( obj );
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}
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static int console_input_signaled( struct object *obj, struct thread *thread )
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{
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fd_set fds;
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struct timeval tv = { 0, 0 };
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struct console_input *console = (struct console_input *)obj;
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assert( obj->ops == &console_input_ops );
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FD_ZERO( &fds );
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FD_SET( console->fd, &fds );
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return select( console->fd + 1, &fds, NULL, NULL, &tv ) > 0;
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}
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static int console_input_get_read_fd( struct object *obj )
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{
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struct console_input *console = (struct console_input *)obj;
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assert( obj->ops == &console_input_ops );
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return dup( console->fd );
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}
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static int console_get_info( struct object *obj, struct get_file_info_reply *reply )
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{
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memset( reply, 0, sizeof(*reply) );
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reply->type = FILE_TYPE_CHAR;
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return 1;
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}
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static void console_input_destroy( struct object *obj )
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{
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struct console_input *console = (struct console_input *)obj;
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assert( obj->ops == &console_input_ops );
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close( console->fd );
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if (console->output) console->output->input = NULL;
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free( console );
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}
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static void screen_buffer_dump( struct object *obj, int verbose )
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{
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struct screen_buffer *console = (struct screen_buffer *)obj;
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assert( obj->ops == &screen_buffer_ops );
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fprintf( stderr, "Console screen buffer fd=%d\n", console->fd );
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}
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static int screen_buffer_add_queue( struct object *obj, struct wait_queue_entry *entry )
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{
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struct screen_buffer *console = (struct screen_buffer *)obj;
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assert( obj->ops == &screen_buffer_ops );
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if (!obj->head) /* first on the queue */
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{
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if (!add_select_user( console->fd, WRITE_EVENT, &select_ops, console ))
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{
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SET_ERROR( ERROR_OUTOFMEMORY );
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return 0;
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}
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}
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add_queue( obj, entry );
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return 1;
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}
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static void screen_buffer_remove_queue( struct object *obj, struct wait_queue_entry *entry )
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{
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struct screen_buffer *console = (struct screen_buffer *)grab_object(obj);
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assert( obj->ops == &screen_buffer_ops );
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remove_queue( obj, entry );
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if (!obj->head) /* last on the queue is gone */
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remove_select_user( console->fd );
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release_object( obj );
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}
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static int screen_buffer_signaled( struct object *obj, struct thread *thread )
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{
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fd_set fds;
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struct timeval tv = { 0, 0 };
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struct screen_buffer *console = (struct screen_buffer *)obj;
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assert( obj->ops == &screen_buffer_ops );
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FD_ZERO( &fds );
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FD_SET( console->fd, &fds );
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return select( console->fd + 1, NULL, &fds, NULL, &tv ) > 0;
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}
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static int screen_buffer_get_write_fd( struct object *obj )
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{
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struct screen_buffer *console = (struct screen_buffer *)obj;
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assert( obj->ops == &screen_buffer_ops );
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return dup( console->fd );
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}
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static void screen_buffer_destroy( struct object *obj )
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{
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struct screen_buffer *console = (struct screen_buffer *)obj;
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assert( obj->ops == &screen_buffer_ops );
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close( console->fd );
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if (console->input) console->input->output = NULL;
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if (console->pid) kill( console->pid, SIGTERM );
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if (console->title) free( console->title );
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free( console );
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}
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