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net: Refactor to protect access to the NetState variable

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Changes to NetState now go through an accessor function called
net_set_state()

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Joe Hershberger
2012-05-23 07:59:14 +00:00
parent adf5d93e44
commit 22f6e99d5b
9 changed files with 48 additions and 37 deletions
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12
net/nfs.c
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@@ -41,7 +41,7 @@ static int nfs_len;
static char dirfh[NFS_FHSIZE]; /* file handle of directory */
static char filefh[NFS_FHSIZE]; /* file handle of kernel image */
static int NfsDownloadState;
static enum net_loop_state nfs_download_state;
static IPaddr_t NfsServerIP;
static int NfsSrvMountPort;
static int NfsSrvNfsPort;
@@ -613,10 +613,10 @@ NfsHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src, unsigned len)
case STATE_UMOUNT_REQ:
if (nfs_umountall_reply(pkt, len)) {
puts("*** ERROR: Cannot umount\n");
NetState = NETLOOP_FAIL;
net_set_state(NETLOOP_FAIL);
} else {
puts("\ndone\n");
NetState = NfsDownloadState;
net_set_state(nfs_download_state);
}
break;
@@ -660,7 +660,7 @@ NfsHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src, unsigned len)
NfsSend();
} else {
if (!rlen)
NfsDownloadState = NETLOOP_SUCCESS;
nfs_download_state = NETLOOP_SUCCESS;
NfsState = STATE_UMOUNT_REQ;
NfsSend();
}
@@ -673,13 +673,13 @@ void
NfsStart(void)
{
debug("%s\n", __func__);
NfsDownloadState = NETLOOP_FAIL;
nfs_download_state = NETLOOP_FAIL;
NfsServerIP = NetServerIP;
nfs_path = (char *)nfs_path_buff;
if (nfs_path == NULL) {
NetState = NETLOOP_FAIL;
net_set_state(NETLOOP_FAIL);
puts("*** ERROR: Fail allocate memory\n");
return;
}