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From: Leinhos, H. A C. N. N. <hen...@na...> - 2011-04-05 16:31:02
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Attached is a very crude implementation of ring buffer support. I needed *something* to start with, so here it is! Henry |
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From: Leinhos, H. A C. N. N. <hen...@na...> - 2011-04-04 12:43:17
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Hi, It appears that wait_for_token() in lib/lsemLib.c returns the wrong status for NO_WAIT timeouts. Attached is a simple patch correcting the problem. Comments? Anyone? Regards, Henry |
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From: Leinhos, H. A C. N. N. <hen...@na...> - 2009-12-18 18:26:06
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Hi,
I had similar trouble (with changes in syscall definitions).
The attached patch should get things rolling.
Regards,
Henry
-----Original Message-----
From: Heinz-Peter Hirsch [mailto:hei...@ut...]
Sent: Fri 12/18/2009 12:24 PM
To: vxworks
Subject: [V2lin-general] newbie
Hi!
I have download the version 0.2 and tried to compile them. Got the
following messages:
Makefile:41: warning: overriding commands for target `clean'
rules.mk:29: warning: ignoring old commands for target `clean'
cc -M *.c > .deps.mk
cc: *.c: No such file or directory
cc: no input files
make: [.deps.mk] Error 1 (ignored)
Makefile:41: warning: overriding commands for target `clean'
rules.mk:29: warning: ignoring old commands for target `clean'
make -C lib
make[1]: Entering directory `/home/hirschh/work/C4/v2lin_v02/lib'
cc -M -I../lib -g -D _USR_SYS_INIT_KILL -Wall -Wno-format
-Wno-unused-label -Wno-unused-variable -fmessage-length=0 -fPIC *.c >
.deps.mk
make[1]: Leaving directory `/home/hirschh/work/C4/v2lin_v02/lib'
make[1]: Entering directory `/home/hirschh/work/C4/v2lin_v02/lib'
cc -I../lib -g -D _USR_SYS_INIT_KILL -Wall -Wno-format -Wno-unused-label
-Wno-unused-variable -fmessage-length=0 -fPIC -c -o lkernelLib.o
lkernelLib.c
cc -I../lib -g -D _USR_SYS_INIT_KILL -Wall -Wno-format -Wno-unused-label
-Wno-unused-variable -fmessage-length=0 -fPIC -c -o ltaskLib.o ltaskLib.c
cc -I../lib -g -D _USR_SYS_INIT_KILL -Wall -Wno-format -Wno-unused-label
-Wno-unused-variable -fmessage-length=0 -fPIC -c -o lmsgQLib.o lmsgQLib.c
lmsgQLib.c: In function 'fetch_msg_from':
lmsgQLib.c:358: warning: cast from pointer to integer of different size
cc -I../lib -g -D _USR_SYS_INIT_KILL -Wall -Wno-format -Wno-unused-label
-Wno-unused-variable -fmessage-length=0 -fPIC -c -o lsemLib.o lsemLib.c
cc -I../lib -g -D _USR_SYS_INIT_KILL -Wall -Wno-format -Wno-unused-label
-Wno-unused-variable -fmessage-length=0 -fPIC -c -o lwdLib.o lwdLib.c
cc -I../lib -g -D _USR_SYS_INIT_KILL -Wall -Wno-format -Wno-unused-label
-Wno-unused-variable -fmessage-length=0 -fPIC -c -o v2ldebug.o v2ldebug.c
v2ldebug.c:27: error: expected declaration specifiers or '...' before
'gettid'
v2ldebug.c:29: warning: return type defaults to 'int'
v2ldebug.c: In function '_syscall0':
v2ldebug.c:30: error: storage class specified for parameter '_argv'
v2ldebug.c:32: error: parameter 'start_tv' is initialized
v2ldebug.c:33: error: parameter 'trace' is initialized
v2ldebug.c:34: error: parameter 'prev_tv' is initialized
v2ldebug.c:37: error: expected '=', ',', ';', 'asm' or '__attribute__'
before '{' token
v2ldebug.c:57: error: expected '=', ',', ';', 'asm' or '__attribute__'
before '{' token
v2ldebug.c:62: error: expected '=', ',', ';', 'asm' or '__attribute__'
before '{' token
v2ldebug.c:67: error: expected '=', ',', ';', 'asm' or '__attribute__'
before '{' token
v2ldebug.c:27: error: old-style parameter declarations in prototyped
function definition
v2ldebug.c:27: error: parameter name omitted
v2ldebug.c:95: error: expected '{' at end of input
make[1]: *** [v2ldebug.o] Error 1
make[1]: Leaving directory `/home/hirschh/work/C4/v2lin_v02/lib'
make: *** [all] Error 2
I am using this gcc version:
gcc (SUSE Linux) 4.4.1 [gcc-4_4-branch revision 150839]
Any idea for help?
Thanks a lot!
Peter...
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|
|
From: Heinz-Peter H. <hei...@ut...> - 2009-12-18 17:24:49
|
Hi!
I have download the version 0.2 and tried to compile them. Got the
following messages:
Makefile:41: warning: overriding commands for target `clean'
rules.mk:29: warning: ignoring old commands for target `clean'
cc -M *.c > .deps.mk
cc: *.c: No such file or directory
cc: no input files
make: [.deps.mk] Error 1 (ignored)
Makefile:41: warning: overriding commands for target `clean'
rules.mk:29: warning: ignoring old commands for target `clean'
make -C lib
make[1]: Entering directory `/home/hirschh/work/C4/v2lin_v02/lib'
cc -M -I../lib -g -D _USR_SYS_INIT_KILL -Wall -Wno-format
-Wno-unused-label -Wno-unused-variable -fmessage-length=0 -fPIC *.c >
.deps.mk
make[1]: Leaving directory `/home/hirschh/work/C4/v2lin_v02/lib'
make[1]: Entering directory `/home/hirschh/work/C4/v2lin_v02/lib'
cc -I../lib -g -D _USR_SYS_INIT_KILL -Wall -Wno-format -Wno-unused-label
-Wno-unused-variable -fmessage-length=0 -fPIC -c -o lkernelLib.o
lkernelLib.c
cc -I../lib -g -D _USR_SYS_INIT_KILL -Wall -Wno-format -Wno-unused-label
-Wno-unused-variable -fmessage-length=0 -fPIC -c -o ltaskLib.o ltaskLib.c
cc -I../lib -g -D _USR_SYS_INIT_KILL -Wall -Wno-format -Wno-unused-label
-Wno-unused-variable -fmessage-length=0 -fPIC -c -o lmsgQLib.o lmsgQLib.c
lmsgQLib.c: In function ‘fetch_msg_from’:
lmsgQLib.c:358: warning: cast from pointer to integer of different size
cc -I../lib -g -D _USR_SYS_INIT_KILL -Wall -Wno-format -Wno-unused-label
-Wno-unused-variable -fmessage-length=0 -fPIC -c -o lsemLib.o lsemLib.c
cc -I../lib -g -D _USR_SYS_INIT_KILL -Wall -Wno-format -Wno-unused-label
-Wno-unused-variable -fmessage-length=0 -fPIC -c -o lwdLib.o lwdLib.c
cc -I../lib -g -D _USR_SYS_INIT_KILL -Wall -Wno-format -Wno-unused-label
-Wno-unused-variable -fmessage-length=0 -fPIC -c -o v2ldebug.o v2ldebug.c
v2ldebug.c:27: error: expected declaration specifiers or ‘...’ before
‘gettid’
v2ldebug.c:29: warning: return type defaults to ‘int’
v2ldebug.c: In function ‘_syscall0’:
v2ldebug.c:30: error: storage class specified for parameter ‘_argv’
v2ldebug.c:32: error: parameter ‘start_tv’ is initialized
v2ldebug.c:33: error: parameter ‘trace’ is initialized
v2ldebug.c:34: error: parameter ‘prev_tv’ is initialized
v2ldebug.c:37: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’
before ‘{’ token
v2ldebug.c:57: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’
before ‘{’ token
v2ldebug.c:62: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’
before ‘{’ token
v2ldebug.c:67: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’
before ‘{’ token
v2ldebug.c:27: error: old-style parameter declarations in prototyped
function definition
v2ldebug.c:27: error: parameter name omitted
v2ldebug.c:95: error: expected ‘{’ at end of input
make[1]: *** [v2ldebug.o] Error 1
make[1]: Leaving directory `/home/hirschh/work/C4/v2lin_v02/lib'
make: *** [all] Error 2
I am using this gcc version:
gcc (SUSE Linux) 4.4.1 [gcc-4_4-branch revision 150839]
Any idea for help?
Thanks a lot!
Peter...
|
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From: Chouinard, L. <Luc...@tr...> - 2009-06-04 14:47:16
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Not sure if there is still people actively monitoring this list.
FYI
Using v2 with extensive use of threads and messages queues I found what looked like an abba deadlock situation.
Here's the chnage for it.
*** lmsgQLib.c.old 2009-06-03 20:40:33.000000000 -0400
--- lmsgQLib.c 2009-06-03 08:12:30.000000000 -0400
***************
*** 374,394 ****
/*
** New queue_head pointer overflowed end of queue...
** Wrap the queue_head pointer to the first message address
** in the queue.
*/
queue->queue_head = queue->first_msg_in_queue;
}
TRACEF(" new queue_head @ %p", queue->queue_head);
queue->msg_count--;
!
/*
** Now see if adequate space was freed in the queue and alert any tasks
** waiting for message space if adequate space now exists.
*/
if (queue->first_write_susp != (task_t *) NULL) {
if (queue->msg_count <= (queue->msgs_per_queue - 1)) {
TRACEF("\r\nqueue @ %p freed msg space for queue list @ %p",
queue, &(queue->first_write_susp));
/*
--- 374,406 ----
/*
** New queue_head pointer overflowed end of queue...
** Wrap the queue_head pointer to the first message address
** in the queue.
*/
queue->queue_head = queue->first_msg_in_queue;
}
TRACEF(" new queue_head @ %p", queue->queue_head);
queue->msg_count--;
!
! /* LUC : ABBA condition between those 2 call stacks:
! pthread_mutex_lock(&(queue->qfull_lock));
!
! fetch_msg_from
! msgQReceive
!
! waitToSend
! msgQSend
!
! Need to free the queue_lock before grabbing the qfull_lock.
! */
! pthread_mutex_unlock(&queue->queue_lock);
!
/*
** Now see if adequate space was freed in the queue and alert any tasks
** waiting for message space if adequate space now exists.
*/
if (queue->first_write_susp != (task_t *) NULL) {
if (queue->msg_count <= (queue->msgs_per_queue - 1)) {
TRACEF("\r\nqueue @ %p freed msg space for queue list @ %p",
queue, &(queue->first_write_susp));
/*
***************
*** 1119,1138 ****
--- 1131,1151 ----
else
error = S_objLib_OBJ_TIMEOUT;
TRACEF("...timed out");
} else {
/*
** A message was sent to the queue for this task...
** Retrieve the message and clear the queue contents.
*/
msglen = (int) fetch_msg_from(queue, (char *) msgbuf, buflen);
TRACEF("...rcvd queue msg @ %p", msgbuf);
+ goto exit; /* LUC : ABBA fix */
}
/*
** Unlock the mutex for the condition variable.
*/
unlock:
pthread_mutex_unlock(&queue->queue_lock);
exit: {}
/*
** Clean up the opening pthread_cleanup_push()
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From: Vincent B. <vb...@ne...> - 2006-01-16 15:55:46
|
Is there someone active on that list ? |
