1/* 
 2 * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
 3 * Copyright (C) 2001 Ridgerun,Inc (glonnon@ridgerun.com)
 4 * Licensed under the GPL
 5 */
 6
 7#include <stddef.h>
 8#include <unistd.h>
 9#include <errno.h>
10#include <sched.h>
11#include <signal.h>
12#include <string.h>
13#include <netinet/in.h>
14#include <sys/time.h>
15#include <sys/socket.h>
16#include <sys/mman.h>
17#include <sys/param.h>
 
 
 
 
 
 
18#include <endian.h>
19#include <byteswap.h>
20
21#include "ubd.h"
22#include "os.h"
23
24void ignore_sigwinch_sig(void)
25{
26	signal(SIGWINCH, SIG_IGN);
27}
28
29int start_io_thread(unsigned long sp, int *fd_out)
30{
31	int pid, fds[2], err;
32
33	err = os_pipe(fds, 1, 1);
34	if(err < 0){
35		printk("start_io_thread - os_pipe failed, err = %d\n", -err);
36		goto out;
37	}
38
39	kernel_fd = fds[0];
40	*fd_out = fds[1];
41
42	err = os_set_fd_block(*fd_out, 0);
43	if (err) {
44		printk("start_io_thread - failed to set nonblocking I/O.\n");
45		goto out_close;
46	}
47
48	pid = clone(io_thread, (void *) sp, CLONE_FILES | CLONE_VM, NULL);
49	if(pid < 0){
50		err = -errno;
51		printk("start_io_thread - clone failed : errno = %d\n", errno);
52		goto out_close;
53	}
54
55	return(pid);
56
57 out_close:
58	os_close_file(fds[0]);
59	os_close_file(fds[1]);
60	kernel_fd = -1;
61	*fd_out = -1;
62 out:
63	return err;
64}

 1/* 
 2 * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
 3 * Copyright (C) 2001 Ridgerun,Inc (glonnon@ridgerun.com)
 4 * Licensed under the GPL
 5 */
 6
 7#include <stddef.h>
 8#include <unistd.h>
 9#include <errno.h>
10#include <sched.h>
11#include <signal.h>
12#include <string.h>
13#include <netinet/in.h>
14#include <sys/time.h>
15#include <sys/socket.h>
16#include <sys/mman.h>
17#include <sys/param.h>
18#include "asm/types.h"
19#include "user.h"
20#include "ubd_user.h"
21#include "os.h"
22#include "cow.h"
23
24#include <endian.h>
25#include <byteswap.h>
 
 
 
26
27void ignore_sigwinch_sig(void)
28{
29	signal(SIGWINCH, SIG_IGN);
30}
31
32int start_io_thread(unsigned long sp, int *fd_out)
33{
34	int pid, fds[2], err;
35
36	err = os_pipe(fds, 1, 1);
37	if(err < 0){
38		printk("start_io_thread - os_pipe failed, err = %d\n", -err);
39		goto out;
40	}
41
42	kernel_fd = fds[0];
43	*fd_out = fds[1];
44
45	err = os_set_fd_block(*fd_out, 0);
46	if (err) {
47		printk("start_io_thread - failed to set nonblocking I/O.\n");
48		goto out_close;
49	}
50
51	pid = clone(io_thread, (void *) sp, CLONE_FILES | CLONE_VM, NULL);
52	if(pid < 0){
53		err = -errno;
54		printk("start_io_thread - clone failed : errno = %d\n", errno);
55		goto out_close;
56	}
57
58	return(pid);
59
60 out_close:
61	os_close_file(fds[0]);
62	os_close_file(fds[1]);
63	kernel_fd = -1;
64	*fd_out = -1;
65 out:
66	return err;
67}