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 <endian.h>
19#include <byteswap.h>
20
21#include "ubd.h"
22#include <os.h>
 
 
 
 
 
23
24int start_io_thread(unsigned long sp, int *fd_out)
25{
26	int pid, fds[2], err;
27
28	err = os_pipe(fds, 1, 1);
29	if(err < 0){
30		printk("start_io_thread - os_pipe failed, err = %d\n", -err);
31		goto out;
32	}
33
34	kernel_fd = fds[0];
35	*fd_out = fds[1];
36
37	err = os_set_fd_block(*fd_out, 0);
38	if (err) {
39		printk("start_io_thread - failed to set nonblocking I/O.\n");
40		goto out_close;
41	}
42
43	pid = clone(io_thread, (void *) sp, CLONE_FILES | CLONE_VM, NULL);
44	if(pid < 0){
45		err = -errno;
46		printk("start_io_thread - clone failed : errno = %d\n", errno);
47		goto out_close;
48	}
49
50	return(pid);
51
52 out_close:
53	os_close_file(fds[0]);
54	os_close_file(fds[1]);
55	kernel_fd = -1;
56	*fd_out = -1;
57 out:
58	return err;
59}