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-rw-r--r--os/io.c163
1 files changed, 129 insertions, 34 deletions
diff --git a/os/io.c b/os/io.c
index 96bfd6885..e97c5dab7 100644
--- a/os/io.c
+++ b/os/io.c
@@ -43,6 +43,7 @@ WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
SOFTWARE.
+
******************************************************************/
/* $Xorg: io.c,v 1.6 2001/02/09 02:05:23 xorgcvs Exp $ */
/*****************************************************************
@@ -52,30 +53,37 @@ SOFTWARE.
* InsertFakeRequest, ResetCurrentRequest
*
*****************************************************************/
+/* $XFree86: xc/programs/Xserver/os/io.c,v 3.34 2002/05/31 18:46:05 dawes Exp $ */
+#if 0
+#define DEBUG_COMMUNICATION
+#endif
#ifdef WIN32
#include <X11/Xwinsock.h>
#endif
#include <stdio.h>
#include <X11/Xtrans.h>
-#ifdef X_NOT_STDC_ENV
-extern int errno;
-#endif
#include "Xmd.h"
#include <errno.h>
-#ifndef WIN32
+#if !defined(__UNIXOS2__) && !defined(WIN32)
+#ifndef Lynx
#include <sys/uio.h>
+#else
+#include <uio.h>
+#endif
#endif
#include "X.h"
#define NEED_REPLIES
#include "Xproto.h"
#include "os.h"
-#include "Xpoll.h"
#include "osdep.h"
+#include "Xpoll.h"
#include "opaque.h"
#include "dixstruct.h"
#include "misc.h"
#ifdef LBX
+#include "colormapst.h"
+#include "propertyst.h"
#include "lbxserve.h"
#endif
@@ -85,6 +93,7 @@ CallbackListPtr FlushCallback;
/* check for both EAGAIN and EWOULDBLOCK, because some supposedly POSIX
* systems are broken and return EWOULDBLOCK when they should return EAGAIN
*/
+#ifndef __UNIXOS2__
#if defined(EAGAIN) && defined(EWOULDBLOCK)
#define ETEST(err) (err == EAGAIN || err == EWOULDBLOCK)
#else
@@ -94,13 +103,9 @@ CallbackListPtr FlushCallback;
#define ETEST(err) (err == EWOULDBLOCK)
#endif
#endif
-
-extern fd_set ClientsWithInput, IgnoredClientsWithInput, AllClients;
-extern fd_set ClientsWriteBlocked;
-extern fd_set OutputPending;
-extern int ConnectionTranslation[];
-extern Bool NewOutputPending;
-extern Bool AnyClientsWriteBlocked;
+#else /* __UNIXOS2__ Writing to full pipes may return ENOSPC */
+#define ETEST(err) (err == EAGAIN || err == EWOULDBLOCK || err == ENOSPC)
+#endif
Bool CriticalOutputPending;
int timesThisConnection = 0;
@@ -251,7 +256,7 @@ ReadRequestFromClient(client)
if (!oci)
{
- if (oci = FreeInputs)
+ if ((oci = FreeInputs))
{
FreeInputs = oci->next;
}
@@ -371,8 +376,23 @@ ReadRequestFromClient(client)
{
if ((result < 0) && ETEST(errno))
{
- YieldControlNoInput();
- return 0;
+#if defined(SVR4) && defined(i386) && !defined(sun)
+#if defined(LBX) && 0
+ /*
+ * For LBX connections, we can get a valid EWOULDBLOCK
+ * There is probably a better way of distinguishing LBX
+ * connections, but this works. (DHD)
+ */
+ extern int LbxRead();
+ if (oc->Read == LbxRead)
+#else
+ if (0)
+#endif
+#endif
+ {
+ YieldControlNoInput();
+ return 0;
+ }
}
YieldControlDeath();
return -1;
@@ -451,14 +471,29 @@ ReadRequestFromClient(client)
)
FD_SET(fd, &ClientsWithInput);
else
- YieldControlNoInput();
+ {
+#ifdef SMART_SCHEDULE
+ if (!SmartScheduleDisable)
+ FD_CLR(fd, &ClientsWithInput);
+ else
+#endif
+ YieldControlNoInput();
+ }
}
else
{
if (!gotnow)
AvailableInput = oc;
- YieldControlNoInput();
+#ifdef SMART_SCHEDULE
+ if (!SmartScheduleDisable)
+ FD_CLR(fd, &ClientsWithInput);
+ else
+#endif
+ YieldControlNoInput();
}
+#ifdef SMART_SCHEDULE
+ if (SmartScheduleDisable)
+#endif
if (++timesThisConnection >= MAX_TIMES_PER)
YieldControl();
#ifdef BIGREQS
@@ -472,6 +507,13 @@ ReadRequestFromClient(client)
}
#endif
client->requestBuffer = (pointer)oci->bufptr;
+#ifdef DEBUG_COMMUNICATION
+ {
+ xReq *req = client->requestBuffer;
+ ErrorF("REQUEST: ClientIDX: %i, type: 0x%x data: 0x%x len: %i\n",
+ client->index,req->reqType,req->data,req->length);
+ }
+#endif
return needed;
}
@@ -513,7 +555,7 @@ InsertFakeRequest(client, data, count)
}
if (!oci)
{
- if (oci = FreeInputs)
+ if ((oci = FreeInputs))
FreeInputs = oci->next;
else if (!(oci = AllocateInputBuffer()))
return FALSE;
@@ -558,6 +600,7 @@ InsertFakeRequest(client, data, count)
*
**********************/
+void
ResetCurrentRequest(client)
ClientPtr client;
{
@@ -567,7 +610,6 @@ ResetCurrentRequest(client)
register xReq *request;
int gotnow, needed;
#ifdef LBX
- Bool part;
LbxClientPtr lbxClient = LbxClient(client);
if (lbxClient) {
@@ -769,11 +811,12 @@ static int padlength[4] = {0, 3, 2, 1};
void
FlushAllOutput()
{
- register int index, base, mask;
+ register int index, base;
+ register fd_mask mask; /* raphael */
OsCommPtr oc;
register ClientPtr client;
Bool newoutput = NewOutputPending;
-#ifdef WIN32
+#if defined(WIN32)
fd_set newOutputPending;
#endif
@@ -800,7 +843,7 @@ FlushAllOutput()
{
index = ffs(mask) - 1;
mask &= ~lowbit(mask);
- if ((index = ConnectionTranslation[(base << 5) + index]) == 0)
+ if ((index = ConnectionTranslation[(base * (sizeof(fd_mask)*8)) + index]) == 0)
continue;
client = clients[index];
if (client->clientGone)
@@ -879,13 +922,54 @@ WriteToClient (who, count, buf)
OsCommPtr oc = (OsCommPtr)who->osPrivate;
register ConnectionOutputPtr oco = oc->output;
int padBytes;
-
+#ifdef DEBUG_COMMUNICATION
+ Bool multicount = FALSE;
+#endif
if (!count)
return(0);
+#ifdef DEBUG_COMMUNICATION
+ {
+ char info[128];
+ xError *err;
+ xGenericReply *rep;
+ xEvent *ev;
+
+ if (!who->replyBytesRemaining) {
+ switch(buf[0]) {
+ case X_Reply:
+ rep = (xGenericReply*)buf;
+ if (rep->sequenceNumber == who->sequence) {
+ snprintf(info,127,"Xreply: type: 0x%x data: 0x%x "
+ "len: %i seq#: 0x%x", rep->type, rep->data1,
+ rep->length, rep->sequenceNumber);
+ multicount = TRUE;
+ }
+ break;
+ case X_Error:
+ err = (xError*)buf;
+ snprintf(info,127,"Xerror: Code: 0x%x resID: 0x%x maj: 0x%x "
+ "min: %x", err->errorCode,err->resourceID,
+ err->minorCode,err->majorCode);
+ break;
+ default:
+ if ((buf[0] & 0x7f) == KeymapNotify)
+ snprintf(info,127,"KeymapNotifyEvent: %i",buf[0]);
+ else {
+ ev = (xEvent*)buf;
+ snprintf(info,127,"XEvent: type: 0x%x detail: 0x%x "
+ "seq#: 0x%x", ev->u.u.type, ev->u.u.detail,
+ ev->u.u.sequenceNumber);
+ }
+ }
+ ErrorF("REPLY: ClientIDX: %i %s\n",who->index, info);
+ } else
+ multicount = TRUE;
+ }
+#endif
if (!oco)
{
- if (oco = FreeOutputs)
+ if ((oco = FreeOutputs))
{
FreeOutputs = oco->next;
}
@@ -933,14 +1017,25 @@ WriteToClient (who, count, buf)
replyinfo.bytesRemaining = who->replyBytesRemaining = bytesleft;
CallCallbacks((&ReplyCallback), (pointer)&replyinfo);
}
- }
-
+ }
+#ifdef DEBUG_COMMUNICATION
+ else if (multicount) {
+ if (who->replyBytesRemaining) {
+ who->replyBytesRemaining -= (count + padBytes);
+ } else {
+ CARD32 replylen;
+ replylen = ((xGenericReply *)buf)->length;
+ who->replyBytesRemaining =
+ (replylen * 4) + SIZEOF(xReply) - count - padBytes;
+ }
+ }
+#endif
if (oco->count + count + padBytes > oco->size)
{
FD_CLR(oc->fd, &OutputPending);
if(!XFD_ANYSET(&OutputPending)) {
- CriticalOutputPending = FALSE;
- NewOutputPending = FALSE;
+ CriticalOutputPending = FALSE;
+ NewOutputPending = FALSE;
}
return FlushClient(who, oc, buf, count);
}
@@ -1007,7 +1102,7 @@ FlushClient(who, oc, extraBuf, extraCount)
long remain = todo; /* amount to try this time, <= notWritten */
int i = 0;
long len;
-
+
/* You could be very general here and have "in" and "out" iovecs
* and write a loop without using a macro, but what the heck. This
* translates to:
@@ -1203,7 +1298,7 @@ FreeOsBuffers(oc)
if (AvailableInput == oc)
AvailableInput = (OsCommPtr)NULL;
- if (oci = oc->input)
+ if ((oci = oc->input))
{
if (FreeInputs)
{
@@ -1219,7 +1314,7 @@ FreeOsBuffers(oc)
oci->lenLastReq = 0;
}
}
- if (oco = oc->output)
+ if ((oco = oc->output))
{
if (FreeOutputs)
{
@@ -1234,7 +1329,7 @@ FreeOsBuffers(oc)
}
}
#ifdef LBX
- if (oci = oc->largereq) {
+ if ((oci = oc->largereq)) {
xfree(oci->buffer);
xfree(oci);
}
@@ -1247,13 +1342,13 @@ ResetOsBuffers()
register ConnectionInputPtr oci;
register ConnectionOutputPtr oco;
- while (oci = FreeInputs)
+ while ((oci = FreeInputs))
{
FreeInputs = oci->next;
xfree(oci->buffer);
xfree(oci);
}
- while (oco = FreeOutputs)
+ while ((oco = FreeOutputs))
{
FreeOutputs = oco->next;
xfree(oco->buf);
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-15 04:41:56 +0000