*/
#include "includes.h"
+#include "smbd/globals.h"
#if defined(WITH_AIO)
/* The signal we'll use to signify aio done. */
#ifndef RT_SIGNAL_AIO
-#define RT_SIGNAL_AIO (SIGRTMIN+3)
+#define RT_SIGNAL_AIO (SIGRTMIN+3)
+#endif
+
+#ifndef HAVE_STRUCT_SIGEVENT_SIGEV_VALUE_SIVAL_PTR
+#ifdef HAVE_STRUCT_SIGEVENT_SIGEV_VALUE_SIGVAL_PTR
+#define sival_int sigval_int
+#define sival_ptr sigval_ptr
+#endif
#endif
/****************************************************************************
struct aio_extra *next, *prev;
SMB_STRUCT_AIOCB acb;
files_struct *fsp;
- bool read_req;
- uint16 mid;
- char *inbuf;
+ struct smb_request *req;
char *outbuf;
+ int (*handle_completion)(struct aio_extra *ex, int errcode);
};
-static struct aio_extra *aio_list_head;
-
-/****************************************************************************
- Create the extended aio struct we must keep around for the lifetime
- of the aio_read call.
-*****************************************************************************/
+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 struct aio_extra *create_aio_ex_read(files_struct *fsp, size_t buflen,
- uint16 mid)
+static int aio_extra_destructor(struct aio_extra *aio_ex)
{
- struct aio_extra *aio_ex = SMB_MALLOC_P(struct aio_extra);
-
- if (!aio_ex) {
- return NULL;
- }
- ZERO_STRUCTP(aio_ex);
- /* The output buffer stored in the aio_ex is the start of
- the smb return buffer. The buffer used in the acb
- is the start of the reply data portion of that buffer. */
- aio_ex->outbuf = SMB_MALLOC_ARRAY(char, buflen);
- if (!aio_ex->outbuf) {
- SAFE_FREE(aio_ex);
- return NULL;
- }
- DLIST_ADD(aio_list_head, aio_ex);
- aio_ex->fsp = fsp;
- aio_ex->read_req = True;
- aio_ex->mid = mid;
- return aio_ex;
+ DLIST_REMOVE(aio_list_head, aio_ex);
+ return 0;
}
/****************************************************************************
Create the extended aio struct we must keep around for the lifetime
- of the aio_write call.
+ of the aio call.
*****************************************************************************/
-static struct aio_extra *create_aio_ex_write(files_struct *fsp,
- size_t inbuflen,
- size_t outbuflen,
- uint16 mid)
+static struct aio_extra *create_aio_extra(files_struct *fsp, size_t buflen)
{
- struct aio_extra *aio_ex = SMB_MALLOC_P(struct aio_extra);
+ struct aio_extra *aio_ex = TALLOC_ZERO_P(NULL, struct aio_extra);
if (!aio_ex) {
return NULL;
}
- ZERO_STRUCTP(aio_ex);
- /* We need space for an output reply of outbuflen bytes. */
- aio_ex->outbuf = SMB_MALLOC_ARRAY(char, outbuflen);
- if (!aio_ex->outbuf) {
- SAFE_FREE(aio_ex);
- return NULL;
- }
+ /* The output buffer stored in the aio_ex is the start of
+ the smb return buffer. The buffer used in the acb
+ is the start of the reply data portion of that buffer. */
- if (!(aio_ex->inbuf = SMB_MALLOC_ARRAY(char, inbuflen))) {
- SAFE_FREE(aio_ex->outbuf);
- SAFE_FREE(aio_ex);
+ aio_ex->outbuf = TALLOC_ARRAY(aio_ex, char, buflen);
+ if (!aio_ex->outbuf) {
+ TALLOC_FREE(aio_ex);
return NULL;
}
-
DLIST_ADD(aio_list_head, aio_ex);
+ talloc_set_destructor(aio_ex, aio_extra_destructor);
aio_ex->fsp = fsp;
- aio_ex->read_req = False;
- aio_ex->mid = mid;
return aio_ex;
}
/****************************************************************************
- Delete the extended aio struct.
-*****************************************************************************/
-
-static void delete_aio_ex(struct aio_extra *aio_ex)
-{
- DLIST_REMOVE(aio_list_head, aio_ex);
- SAFE_FREE(aio_ex->inbuf);
- SAFE_FREE(aio_ex->outbuf);
- SAFE_FREE(aio_ex);
-}
-
-/****************************************************************************
- Given the aiocb struct find the extended aio struct containing it.
+ Given the mid find the extended aio struct containing it.
*****************************************************************************/
static struct aio_extra *find_aio_ex(uint16 mid)
struct aio_extra *p;
for( p = aio_list_head; p; p = p->next) {
- if (mid == p->mid) {
+ if (mid == p->req->mid) {
return p;
}
}
We can have these many aio buffers in flight.
*****************************************************************************/
-#define AIO_PENDING_SIZE 10
-static sig_atomic_t signals_received;
-static int outstanding_aio_calls;
-static uint16 aio_pending_array[AIO_PENDING_SIZE];
-
-/****************************************************************************
- Signal handler when an aio request completes.
-*****************************************************************************/
-
-static void signal_handler(int sig, siginfo_t *info, void *unused)
-{
- if (signals_received < AIO_PENDING_SIZE) {
- aio_pending_array[signals_received] = info->si_value.sival_int;
- signals_received++;
- } /* Else signal is lost. */
- sys_select_signal(RT_SIGNAL_AIO);
-}
-
-/****************************************************************************
- Is there a signal waiting ?
-*****************************************************************************/
-
-bool aio_finished(void)
-{
- return (signals_received != 0);
-}
-
-/****************************************************************************
- Initialize the signal handler for aio read/write.
-*****************************************************************************/
-
-void initialize_async_io_handler(void)
-{
- struct sigaction act;
-
- ZERO_STRUCT(act);
- act.sa_sigaction = signal_handler;
- act.sa_flags = SA_SIGINFO;
- sigemptyset( &act.sa_mask );
- if (sigaction(RT_SIGNAL_AIO, &act, NULL) != 0) {
- DEBUG(0,("Failed to setup RT_SIGNAL_AIO handler\n"));
- }
-
- /* the signal can start off blocked due to a bug in bash */
- BlockSignals(False, RT_SIGNAL_AIO);
-}
-
/****************************************************************************
Set up an aio request from a SMBreadX call.
*****************************************************************************/
SMB_STRUCT_AIOCB *a;
size_t bufsize;
size_t min_aio_read_size = lp_aio_read_size(SNUM(conn));
+ int ret;
+
+ if (fsp->base_fsp != NULL) {
+ /* No AIO on streams yet */
+ DEBUG(10, ("AIO on streams not yet supported\n"));
+ return false;
+ }
if ((!min_aio_read_size || (smb_maxcnt < min_aio_read_size))
&& !SMB_VFS_AIO_FORCE(fsp)) {
/* Only do this on non-chained and non-chaining reads not using the
* write cache. */
- if (chain_size !=0 || (CVAL(req->inbuf,smb_vwv0) != 0xFF)
- || (lp_write_cache_size(SNUM(conn)) != 0) ) {
+ if (req_is_in_chain(req) || (lp_write_cache_size(SNUM(conn)) != 0)) {
return False;
}
- if (outstanding_aio_calls >= AIO_PENDING_SIZE) {
+ if (outstanding_aio_calls >= aio_pending_size) {
DEBUG(10,("schedule_aio_read_and_X: Already have %d aio "
"activities outstanding.\n",
outstanding_aio_calls ));
bufsize = smb_size + 12 * 2 + smb_maxcnt;
- if ((aio_ex = create_aio_ex_read(fsp, bufsize, req->mid)) == NULL) {
+ if ((aio_ex = create_aio_extra(fsp, bufsize)) == NULL) {
DEBUG(10,("schedule_aio_read_and_X: malloc fail.\n"));
return False;
}
+ aio_ex->handle_completion = handle_aio_read_complete;
- construct_reply_common((char *)req->inbuf, aio_ex->outbuf);
+ construct_reply_common_req(req, aio_ex->outbuf);
srv_set_message(aio_ex->outbuf, 12, 0, True);
SCVAL(aio_ex->outbuf,smb_vwv0,0xFF); /* Never a chained reply. */
a = &aio_ex->acb;
/* Now set up the aio record for the read call. */
-
+
a->aio_fildes = fsp->fh->fd;
a->aio_buf = smb_buf(aio_ex->outbuf);
a->aio_nbytes = smb_maxcnt;
a->aio_offset = startpos;
a->aio_sigevent.sigev_notify = SIGEV_SIGNAL;
a->aio_sigevent.sigev_signo = RT_SIGNAL_AIO;
- a->aio_sigevent.sigev_value.sival_int = aio_ex->mid;
+ a->aio_sigevent.sigev_value.sival_int = req->mid;
- if (SMB_VFS_AIO_READ(fsp,a) == -1) {
+ ret = SMB_VFS_AIO_READ(fsp, a);
+ if (ret == -1) {
DEBUG(0,("schedule_aio_read_and_X: aio_read failed. "
"Error %s\n", strerror(errno) ));
- delete_aio_ex(aio_ex);
+ TALLOC_FREE(aio_ex);
return False;
}
+ outstanding_aio_calls++;
+ aio_ex->req = talloc_move(aio_ex, &req);
+
DEBUG(10,("schedule_aio_read_and_X: scheduled aio_read for file %s, "
"offset %.0f, len = %u (mid = %u)\n",
- fsp->fsp_name, (double)startpos, (unsigned int)smb_maxcnt,
- (unsigned int)aio_ex->mid ));
+ fsp_str_dbg(fsp), (double)startpos, (unsigned int)smb_maxcnt,
+ (unsigned int)aio_ex->req->mid ));
- srv_defer_sign_response(aio_ex->mid);
- outstanding_aio_calls++;
return True;
}
{
struct aio_extra *aio_ex;
SMB_STRUCT_AIOCB *a;
- size_t inbufsize, outbufsize;
- bool write_through = BITSETW(req->inbuf+smb_vwv7,0);
+ size_t bufsize;
+ bool write_through = BITSETW(req->vwv+7,0);
size_t min_aio_write_size = lp_aio_write_size(SNUM(conn));
+ int ret;
+
+ if (fsp->base_fsp != NULL) {
+ /* No AIO on streams yet */
+ DEBUG(10, ("AIO on streams not yet supported\n"));
+ return false;
+ }
if ((!min_aio_write_size || (numtowrite < min_aio_write_size))
&& !SMB_VFS_AIO_FORCE(fsp)) {
/* Only do this on non-chained and non-chaining reads not using the
* write cache. */
- if (chain_size !=0 || (CVAL(req->inbuf,smb_vwv0) != 0xFF)
- || (lp_write_cache_size(SNUM(conn)) != 0) ) {
+ if (req_is_in_chain(req) || (lp_write_cache_size(SNUM(conn)) != 0)) {
return False;
}
- if (outstanding_aio_calls >= AIO_PENDING_SIZE) {
+ if (outstanding_aio_calls >= aio_pending_size) {
DEBUG(3,("schedule_aio_write_and_X: Already have %d aio "
"activities outstanding.\n",
outstanding_aio_calls ));
DEBUG(10,("schedule_aio_write_and_X: failed to schedule "
"aio_write for file %s, offset %.0f, len = %u "
"(mid = %u)\n",
- fsp->fsp_name, (double)startpos,
+ fsp_str_dbg(fsp), (double)startpos,
(unsigned int)numtowrite,
(unsigned int)req->mid ));
return False;
}
- inbufsize = smb_len(req->inbuf) + 4;
- reply_outbuf(req, 6, 0);
- outbufsize = smb_len(req->outbuf) + 4;
- if (!(aio_ex = create_aio_ex_write(fsp, inbufsize, outbufsize,
- req->mid))) {
+ bufsize = smb_size + 6*2;
+
+ if (!(aio_ex = create_aio_extra(fsp, bufsize))) {
DEBUG(0,("schedule_aio_write_and_X: malloc fail.\n"));
return False;
}
+ aio_ex->handle_completion = handle_aio_write_complete;
- /* Copy the SMB header already setup in outbuf. */
- memcpy(aio_ex->inbuf, req->inbuf, inbufsize);
-
- /* Copy the SMB header already setup in outbuf. */
- memcpy(aio_ex->outbuf, req->outbuf, outbufsize);
- TALLOC_FREE(req->outbuf);
+ construct_reply_common_req(req, aio_ex->outbuf);
+ srv_set_message(aio_ex->outbuf, 6, 0, True);
SCVAL(aio_ex->outbuf,smb_vwv0,0xFF); /* Never a chained reply. */
a = &aio_ex->acb;
/* Now set up the aio record for the write call. */
-
+
a->aio_fildes = fsp->fh->fd;
- a->aio_buf = aio_ex->inbuf + (PTR_DIFF(data, req->inbuf));
+ a->aio_buf = data;
a->aio_nbytes = numtowrite;
a->aio_offset = startpos;
a->aio_sigevent.sigev_notify = SIGEV_SIGNAL;
a->aio_sigevent.sigev_signo = RT_SIGNAL_AIO;
- a->aio_sigevent.sigev_value.sival_int = aio_ex->mid;
+ a->aio_sigevent.sigev_value.sival_int = req->mid;
- if (SMB_VFS_AIO_WRITE(fsp,a) == -1) {
+ ret = SMB_VFS_AIO_WRITE(fsp, a);
+ if (ret == -1) {
DEBUG(3,("schedule_aio_wrote_and_X: aio_write failed. "
"Error %s\n", strerror(errno) ));
- delete_aio_ex(aio_ex);
+ TALLOC_FREE(aio_ex);
return False;
}
- release_level_2_oplocks_on_change(fsp);
+ outstanding_aio_calls++;
+ aio_ex->req = talloc_move(aio_ex, &req);
+
+ /* This should actually be improved to span the write. */
+ contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_WRITE);
+ contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_WRITE);
if (!write_through && !lp_syncalways(SNUM(fsp->conn))
&& fsp->aio_write_behind) {
SSVAL(aio_ex->outbuf,smb_vwv4,(numtowrite>>16)&1);
show_msg(aio_ex->outbuf);
if (!srv_send_smb(smbd_server_fd(),aio_ex->outbuf,
- IS_CONN_ENCRYPTED(fsp->conn))) {
+ true, aio_ex->req->seqnum+1,
+ IS_CONN_ENCRYPTED(fsp->conn),
+ &aio_ex->req->pcd)) {
exit_server_cleanly("handle_aio_write: srv_send_smb "
"failed.");
}
DEBUG(10,("schedule_aio_write_and_X: scheduled aio_write "
- "behind for file %s\n", fsp->fsp_name ));
- } else {
- srv_defer_sign_response(aio_ex->mid);
+ "behind for file %s\n", fsp_str_dbg(fsp)));
}
- outstanding_aio_calls++;
DEBUG(10,("schedule_aio_write_and_X: scheduled aio_write for file "
"%s, offset %.0f, len = %u (mid = %u) "
"outstanding_aio_calls = %d\n",
- fsp->fsp_name, (double)startpos, (unsigned int)numtowrite,
- (unsigned int)aio_ex->mid, outstanding_aio_calls ));
+ fsp_str_dbg(fsp), (double)startpos, (unsigned int)numtowrite,
+ (unsigned int)aio_ex->req->mid, outstanding_aio_calls ));
return True;
}
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;
will return an error. Hopefully this is
true.... JRA. */
- /* If errno is ECANCELED then don't return anything to the
- * client. */
- if (errno == ECANCELED) {
- srv_cancel_sign_response(aio_ex->mid);
- 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",
- aio_ex->fsp->fsp_name, 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 {
DEBUG( 3, ( "handle_aio_read_complete file %s max=%d "
"nread=%d\n",
- aio_ex->fsp->fsp_name,
+ fsp_str_dbg(aio_ex->fsp),
(int)aio_ex->acb.aio_nbytes, (int)nread ) );
}
smb_setlen(outbuf,outsize - 4);
show_msg(outbuf);
if (!srv_send_smb(smbd_server_fd(),outbuf,
- IS_CONN_ENCRYPTED(aio_ex->fsp->conn))) {
+ true, aio_ex->req->seqnum+1,
+ IS_CONN_ENCRYPTED(aio_ex->fsp->conn), NULL)) {
exit_server_cleanly("handle_aio_read_complete: srv_send_smb "
"failed.");
}
DEBUG(10,("handle_aio_read_complete: scheduled aio_read completed "
"for file %s, offset %.0f, len = %u\n",
- aio_ex->fsp->fsp_name, (double)aio_ex->acb.aio_offset,
+ fsp_str_dbg(aio_ex->fsp), (double)aio_ex->acb.aio_offset,
(unsigned int)nread ));
return ret;
/****************************************************************************
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;
DEBUG(5,("handle_aio_write_complete: "
"aio_write_behind failed ! File %s "
"is corrupt ! Error %s\n",
- fsp->fsp_name, 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 "
"is corrupt ! Wanted %u bytes but "
- "only wrote %d\n", fsp->fsp_name,
+ "only wrote %d\n", fsp_str_dbg(fsp),
(unsigned int)numtowrite,
(int)nwritten ));
ret = EIO;
} else {
DEBUG(10,("handle_aio_write_complete: "
"aio_write_behind completed for file %s\n",
- fsp->fsp_name ));
+ fsp_str_dbg(fsp)));
}
+ /* TODO: should no return 0 in case of an error !!! */
return 0;
}
if(nwritten == -1) {
DEBUG( 3,( "handle_aio_write: file %s wanted %u bytes. "
"nwritten == %d. Error = %s\n",
- fsp->fsp_name, (unsigned int)numtowrite,
- (int)nwritten, strerror(errno) ));
+ fsp_str_dbg(fsp), (unsigned int)numtowrite,
+ (int)nwritten, strerror(errcode) ));
- /* If errno is ECANCELED then don't return anything to the
- * client. */
- if (errno == ECANCELED) {
- srv_cancel_sign_response(aio_ex->mid);
- 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->inbuf+smb_vwv7,0);
+ bool write_through = BITSETW(aio_ex->req->vwv+7,0);
NTSTATUS status;
SSVAL(outbuf,smb_vwv2,nwritten);
ERRHRD, ERRdiskfull);
srv_set_message(outbuf,0,0,true);
DEBUG(5,("handle_aio_write: sync_file for %s returned %s\n",
- fsp->fsp_name, nt_errstr(status) ));
+ fsp_str_dbg(fsp), nt_errstr(status)));
}
aio_ex->fsp->fh->pos = aio_ex->acb.aio_offset + nwritten;
}
show_msg(outbuf);
- if (!srv_send_smb(smbd_server_fd(),outbuf,IS_CONN_ENCRYPTED(fsp->conn))) {
+ if (!srv_send_smb(smbd_server_fd(),outbuf,
+ true, aio_ex->req->seqnum+1,
+ IS_CONN_ENCRYPTED(fsp->conn),
+ NULL)) {
exit_server_cleanly("handle_aio_write: srv_send_smb failed.");
}
DEBUG(10,("handle_aio_write_complete: scheduled aio_write completed "
"for file %s, offset %.0f, requested %u, written = %u\n",
- fsp->fsp_name, (double)aio_ex->acb.aio_offset,
+ fsp_str_dbg(fsp), (double)aio_ex->acb.aio_offset,
(unsigned int)numtowrite, (unsigned int)nwritten ));
return ret;
{
int err;
+ if(!aio_ex) {
+ DEBUG(3, ("handle_aio_completed: Non-existing aio_ex passed\n"));
+ return false;
+ }
+
/* 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->mid, aio_ex->fsp->fsp_name ));
+ aio_ex->req->mid, fsp_str_dbg(aio_ex->fsp)));
return False;
- }
-
- if (aio_ex->read_req) {
- err = handle_aio_read_complete(aio_ex);
- } else {
- err = handle_aio_write_complete(aio_ex);
- }
+ } 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);
if (err) {
*perr = err; /* Only save non-zero errors. */
}
/****************************************************************************
Handle any aio completion inline.
- Returns non-zero errno if fail or zero if all ok.
*****************************************************************************/
-int process_aio_queue(void)
+void smbd_aio_complete_mid(unsigned int mid)
{
- int i;
+ files_struct *fsp = NULL;
+ struct aio_extra *aio_ex = find_aio_ex(mid);
int ret = 0;
- BlockSignals(True, RT_SIGNAL_AIO);
+ outstanding_aio_calls--;
- DEBUG(10,("process_aio_queue: signals_received = %d\n",
- (int)signals_received));
- DEBUG(10,("process_aio_queue: outstanding_aio_calls = %d\n",
- outstanding_aio_calls));
+ DEBUG(10,("smbd_aio_complete_mid: mid[%u]\n", mid));
- if (!signals_received) {
- BlockSignals(False, RT_SIGNAL_AIO);
- return 0;
+ if (!aio_ex) {
+ DEBUG(3,("smbd_aio_complete_mid: Can't find record to "
+ "match mid %u.\n", mid));
+ return;
}
- /* Drain all the complete aio_reads. */
- for (i = 0; i < signals_received; i++) {
- uint16 mid = aio_pending_array[i];
- files_struct *fsp = NULL;
- struct aio_extra *aio_ex = find_aio_ex(mid);
-
- if (!aio_ex) {
- DEBUG(3,("process_aio_queue: Can't find record to "
- "match mid %u.\n", (unsigned int)mid));
- srv_cancel_sign_response(mid);
- continue;
- }
+ fsp = aio_ex->fsp;
+ if (fsp == NULL) {
+ /* file was closed whilst I/O was outstanding. Just
+ * ignore. */
+ DEBUG( 3,( "smbd_aio_complete_mid: file closed whilst "
+ "aio outstanding (mid[%u]).\n", mid));
+ return;
+ }
- fsp = aio_ex->fsp;
- if (fsp == NULL) {
- /* file was closed whilst I/O was outstanding. Just
- * ignore. */
- DEBUG( 3,( "process_aio_queue: file closed whilst "
- "aio outstanding.\n"));
- srv_cancel_sign_response(mid);
- continue;
- }
+ if (!handle_aio_completed(aio_ex, &ret)) {
+ return;
+ }
- if (!handle_aio_completed(aio_ex, &ret)) {
- continue;
- }
+ TALLOC_FREE(aio_ex);
+}
- delete_aio_ex(aio_ex);
- }
+static void smbd_aio_signal_handler(struct tevent_context *ev_ctx,
+ struct tevent_signal *se,
+ int signum, int count,
+ void *_info, void *private_data)
+{
+ siginfo_t *info = (siginfo_t *)_info;
+ unsigned int mid = (unsigned int)info->si_value.sival_int;
- outstanding_aio_calls -= signals_received;
- signals_received = 0;
- BlockSignals(False, RT_SIGNAL_AIO);
- return ret;
+ smbd_aio_complete_mid(mid);
}
/****************************************************************************
DEBUG(10,("wait_for_aio_completion: returned err = %d, "
"errno = %s\n", err, strerror(errno) ));
-
+
if (err == -1 && errno == EAGAIN) {
DEBUG(0,("wait_for_aio_completion: aio_suspend timed "
"out waiting for %d events after a wait of "
if (!handle_aio_completed(aio_ex, &err)) {
continue;
}
- delete_aio_ex(aio_ex);
+ TALLOC_FREE(aio_ex);
}
SAFE_FREE(aiocb_list);
}
}
-#else
-bool aio_finished(void)
-{
- return False;
-}
+/****************************************************************************
+ Initialize the signal handler for aio read/write.
+*****************************************************************************/
void initialize_async_io_handler(void)
{
+ aio_signal_event = tevent_add_signal(smbd_event_context(),
+ smbd_event_context(),
+ RT_SIGNAL_AIO, SA_SIGINFO,
+ smbd_aio_signal_handler,
+ NULL);
+ if (!aio_signal_event) {
+ exit_server("Failed to setup RT_SIGNAL_AIO handler");
+ }
+
+ /* tevent supports 100 signal with SA_SIGINFO */
+ aio_pending_size = 100;
}
-int process_aio_queue(void)
+#else
+void initialize_async_io_handler(void)
{
- return False;
}
bool schedule_aio_read_and_X(connection_struct *conn,
{
return ENOSYS;
}
+
+void smbd_aio_complete_mid(unsigned int mid);
+
#endif
git.samba.org / ira / wip.git / blobdiff