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authorOlaf Flebbe <o.flebbe@science-computing.de>2009-10-13 15:48:19 +0200
committerJeremy Allison <jra@samba.org>2009-10-13 12:59:23 -0700
commit367cb714a3aa7ba18bb44e246662bb567cea5754 (patch)
tree79c4aaf21fee9e50e68751c2df1c175430336ed9
parent94d5417d10a9baa281a19b86d157fb856430dd13 (diff)
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correctly handle aio_error() and errno
-rw-r--r--source3/smbd/aio.c53
1 files changed, 24 insertions, 29 deletions
diff --git a/source3/smbd/aio.c b/source3/smbd/aio.c
index 491dd79464..82e7b3ce15 100644
--- a/source3/smbd/aio.c
+++ b/source3/smbd/aio.c
@@ -45,11 +45,11 @@ struct aio_extra {
files_struct *fsp;
struct smb_request *req;
char *outbuf;
- int (*handle_completion)(struct aio_extra *ex);
+ int (*handle_completion)(struct aio_extra *ex, int errcode);
};
-static int handle_aio_read_complete(struct aio_extra *aio_ex);
-static int handle_aio_write_complete(struct aio_extra *aio_ex);
+static int handle_aio_read_complete(struct aio_extra *aio_ex, int errcode);
+static int handle_aio_write_complete(struct aio_extra *aio_ex, int errcode);
static int aio_extra_destructor(struct aio_extra *aio_ex)
{
@@ -319,7 +319,7 @@ bool schedule_aio_write_and_X(connection_struct *conn,
Returns errno or zero if all ok.
*****************************************************************************/
-static int handle_aio_read_complete(struct aio_extra *aio_ex)
+static int handle_aio_read_complete(struct aio_extra *aio_ex, int errcode)
{
int ret = 0;
int outsize;
@@ -333,17 +333,11 @@ static int handle_aio_read_complete(struct aio_extra *aio_ex)
will return an error. Hopefully this is
true.... JRA. */
- /* If errno is ECANCELED then don't return anything to the
- * client. */
- if (errno == ECANCELED) {
- return 0;
- }
-
- DEBUG( 3,( "handle_aio_read_complete: file %s nread == -1. "
+ DEBUG( 3,( "handle_aio_read_complete: file %s nread == %d. "
"Error = %s\n",
- fsp_str_dbg(aio_ex->fsp), strerror(errno)));
+ fsp_str_dbg(aio_ex->fsp), nread, strerror(errcode)));
- ret = errno;
+ ret = errcode;
ERROR_NT(map_nt_error_from_unix(ret));
outsize = srv_set_message(outbuf,0,0,true);
} else {
@@ -382,10 +376,10 @@ static int handle_aio_read_complete(struct aio_extra *aio_ex)
/****************************************************************************
Complete the write and return the data or error back to the client.
- Returns errno or zero if all ok.
+ Returns error code or zero if all ok.
*****************************************************************************/
-static int handle_aio_write_complete(struct aio_extra *aio_ex)
+static int handle_aio_write_complete(struct aio_extra *aio_ex, int errcode)
{
int ret = 0;
files_struct *fsp = aio_ex->fsp;
@@ -399,8 +393,8 @@ static int handle_aio_write_complete(struct aio_extra *aio_ex)
DEBUG(5,("handle_aio_write_complete: "
"aio_write_behind failed ! File %s "
"is corrupt ! Error %s\n",
- fsp_str_dbg(fsp), strerror(errno)));
- ret = errno;
+ fsp_str_dbg(fsp), strerror(errcode)));
+ ret = errcode;
} else {
DEBUG(0,("handle_aio_write_complete: "
"aio_write_behind failed ! File %s "
@@ -415,6 +409,7 @@ static int handle_aio_write_complete(struct aio_extra *aio_ex)
"aio_write_behind completed for file %s\n",
fsp_str_dbg(fsp)));
}
+ /* TODO: should no return 0 in case of an error !!! */
return 0;
}
@@ -427,14 +422,8 @@ static int handle_aio_write_complete(struct aio_extra *aio_ex)
fsp_str_dbg(fsp), (unsigned int)numtowrite,
(int)nwritten, strerror(errno) ));
- /* If errno is ECANCELED then don't return anything to the
- * client. */
- if (errno == ECANCELED) {
- return 0;
- }
-
- ret = errno;
- ERROR_BOTH(map_nt_error_from_unix(ret), ERRHRD, ERRdiskfull);
+ ret = errcode;
+ ERROR_NT(map_nt_error_from_unix(ret));
srv_set_message(outbuf,0,0,true);
} else {
bool write_through = BITSETW(aio_ex->req->vwv+7,0);
@@ -493,14 +482,21 @@ static bool handle_aio_completed(struct aio_extra *aio_ex, int *perr)
}
/* Ensure the operation has really completed. */
- if (SMB_VFS_AIO_ERROR(aio_ex->fsp, &aio_ex->acb) == EINPROGRESS) {
+ err = SMB_VFS_AIO_ERROR(aio_ex->fsp, &aio_ex->acb);
+ if (err == EINPROGRESS) {
DEBUG(10,( "handle_aio_completed: operation mid %u still in "
"process for file %s\n",
aio_ex->req->mid, fsp_str_dbg(aio_ex->fsp)));
return False;
- }
+ } else if (err == ECANCELED) {
+ /* If error is ECANCELED then don't return anything to the
+ * client. */
+ DEBUG(10,( "handle_aio_completed: operation mid %u"
+ " canceled\n", aio_ex->req->mid));
+ return True;
+ }
- err = aio_ex->handle_completion(aio_ex);
+ err = aio_ex->handle_completion(aio_ex, err);
if (err) {
*perr = err; /* Only save non-zero errors. */
}
@@ -510,7 +506,6 @@ static bool handle_aio_completed(struct aio_extra *aio_ex, int *perr)
/****************************************************************************
Handle any aio completion inline.
- Returns non-zero errno if fail or zero if all ok.
*****************************************************************************/
void smbd_aio_complete_mid(unsigned int mid)