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Now much closer to working.

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This commit is contained in:
Joel Sherrill
1999-11-02 15:29:47 +00:00
parent 26c828fe47
commit fd882eed44
2 changed files with 122 additions and 14 deletions
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68
c/src/exec/posix/src/semaphore.c
View File

@@ -61,11 +61,17 @@ int _POSIX_Semaphore_Create_support(
_Thread_Disable_dispatch();
/* Sharing semaphores among processes is not currently supported */
if (pshared != 0) {
_Thread_Enable_dispatch();
set_errno_and_return_minus_one( ENOSYS );
}
the_semaphore = _POSIX_Semaphore_Allocate();
if ( !the_semaphore ) {
_Thread_Enable_dispatch();
set_errno_and_return_minus_one( ENOMEM );
set_errno_and_return_minus_one( ENOSPC );
}
#if defined(RTEMS_MULTIPROCESSING)
@@ -96,7 +102,13 @@ int _POSIX_Semaphore_Create_support(
*/
the_sem_attr->discipline = CORE_SEMAPHORE_DISCIPLINES_FIFO;
/*
* This effectively disables limit checking.
*/
the_sem_attr->maximum_count = 0xFFFFFFFF;
_CORE_semaphore_Initialize(
&the_semaphore->Semaphore,
OBJECTS_POSIX_SEMAPHORES,
@@ -243,12 +255,15 @@ sem_t *sem_open(
int status;
Objects_Id the_semaphore_id;
POSIX_Semaphore_Control *the_semaphore;
Objects_Locations location;
if ( oflag & O_CREAT ) {
va_start(arg, oflag);
mode = (mode_t) va_arg( arg, mode_t * );
value = (unsigned int) va_arg( arg, unsigned int * );
/*mode = (mode_t) va_arg( arg, mode_t * );*/
mode = va_arg( arg, mode_t );
/*value = (unsigned int) va_arg( arg, unsigned int * );*/
value = va_arg( arg, unsigned int );
va_end(arg);
}
@@ -270,7 +285,7 @@ sem_t *sem_open(
/* we are willing to create it */
}
/* some type of error */
set_errno_and_return_minus_one_cast( status, sem_t * );
/*set_errno_and_return_minus_one_cast( status, sem_t * );*/
} else { /* name -> ID translation succeeded */
@@ -283,6 +298,7 @@ sem_t *sem_open(
* check the mode. This is probably a good place for a subroutine.
*/
the_semaphore = _POSIX_Semaphore_Get( &the_semaphore_id, &location );
the_semaphore->open_count += 1;
return (sem_t *)&the_semaphore->Object.id;
@@ -297,7 +313,7 @@ sem_t *sem_open(
status = _POSIX_Semaphore_Create_support(
name,
TRUE, /* shared across processes */
FALSE, /* not shared across processes */
value,
&the_semaphore
);
@@ -431,6 +447,7 @@ int _POSIX_Semaphore_Wait_support(
{
register POSIX_Semaphore_Control *the_semaphore;
Objects_Locations location;
int code;
the_semaphore = _POSIX_Semaphore_Get( sem, &location );
switch ( location ) {
@@ -448,7 +465,20 @@ int _POSIX_Semaphore_Wait_support(
timeout
);
_Thread_Enable_dispatch();
return _Thread_Executing->Wait.return_code;
code = _Thread_Executing->Wait.return_code;
switch (_Thread_Executing->Wait.return_code) {
case 1:
errno = EAGAIN;
code = -1;
break;
case 3:
errno = ETIMEDOUT;
code = -1;
break;
}
/*return _Thread_Executing->Wait.return_code;*/
return code;
}
return POSIX_BOTTOM_REACHED();
}
@@ -573,3 +603,27 @@ int sem_getvalue(
}
return POSIX_BOTTOM_REACHED();
}
/*PAGE
*
* _POSIX_Semaphore_Name_to_id
*
* XXX
*/
int _POSIX_Semaphore_Name_to_id(
const char *name,
Objects_Id *id
)
{
Objects_Name_to_id_errors status;
status = _Objects_Name_to_id( &_POSIX_Semaphore_Information, name, 0, id );
if ( status == OBJECTS_SUCCESSFUL ) {
return 0;
} else {
return EINVAL;
}
}

68
cpukit/posix/src/semaphore.c
View File

@@ -61,11 +61,17 @@ int _POSIX_Semaphore_Create_support(
_Thread_Disable_dispatch();
/* Sharing semaphores among processes is not currently supported */
if (pshared != 0) {
_Thread_Enable_dispatch();
set_errno_and_return_minus_one( ENOSYS );
}
the_semaphore = _POSIX_Semaphore_Allocate();
if ( !the_semaphore ) {
_Thread_Enable_dispatch();
set_errno_and_return_minus_one( ENOMEM );
set_errno_and_return_minus_one( ENOSPC );
}
#if defined(RTEMS_MULTIPROCESSING)
@@ -96,7 +102,13 @@ int _POSIX_Semaphore_Create_support(
*/
the_sem_attr->discipline = CORE_SEMAPHORE_DISCIPLINES_FIFO;
/*
* This effectively disables limit checking.
*/
the_sem_attr->maximum_count = 0xFFFFFFFF;
_CORE_semaphore_Initialize(
&the_semaphore->Semaphore,
OBJECTS_POSIX_SEMAPHORES,
@@ -243,12 +255,15 @@ sem_t *sem_open(
int status;
Objects_Id the_semaphore_id;
POSIX_Semaphore_Control *the_semaphore;
Objects_Locations location;
if ( oflag & O_CREAT ) {
va_start(arg, oflag);
mode = (mode_t) va_arg( arg, mode_t * );
value = (unsigned int) va_arg( arg, unsigned int * );
/*mode = (mode_t) va_arg( arg, mode_t * );*/
mode = va_arg( arg, mode_t );
/*value = (unsigned int) va_arg( arg, unsigned int * );*/
value = va_arg( arg, unsigned int );
va_end(arg);
}
@@ -270,7 +285,7 @@ sem_t *sem_open(
/* we are willing to create it */
}
/* some type of error */
set_errno_and_return_minus_one_cast( status, sem_t * );
/*set_errno_and_return_minus_one_cast( status, sem_t * );*/
} else { /* name -> ID translation succeeded */
@@ -283,6 +298,7 @@ sem_t *sem_open(
* check the mode. This is probably a good place for a subroutine.
*/
the_semaphore = _POSIX_Semaphore_Get( &the_semaphore_id, &location );
the_semaphore->open_count += 1;
return (sem_t *)&the_semaphore->Object.id;
@@ -297,7 +313,7 @@ sem_t *sem_open(
status = _POSIX_Semaphore_Create_support(
name,
TRUE, /* shared across processes */
FALSE, /* not shared across processes */
value,
&the_semaphore
);
@@ -431,6 +447,7 @@ int _POSIX_Semaphore_Wait_support(
{
register POSIX_Semaphore_Control *the_semaphore;
Objects_Locations location;
int code;
the_semaphore = _POSIX_Semaphore_Get( sem, &location );
switch ( location ) {
@@ -448,7 +465,20 @@ int _POSIX_Semaphore_Wait_support(
timeout
);
_Thread_Enable_dispatch();
return _Thread_Executing->Wait.return_code;
code = _Thread_Executing->Wait.return_code;
switch (_Thread_Executing->Wait.return_code) {
case 1:
errno = EAGAIN;
code = -1;
break;
case 3:
errno = ETIMEDOUT;
code = -1;
break;
}
/*return _Thread_Executing->Wait.return_code;*/
return code;
}
return POSIX_BOTTOM_REACHED();
}
@@ -573,3 +603,27 @@ int sem_getvalue(
}
return POSIX_BOTTOM_REACHED();
}
/*PAGE
*
* _POSIX_Semaphore_Name_to_id
*
* XXX
*/
int _POSIX_Semaphore_Name_to_id(
const char *name,
Objects_Id *id
)
{
Objects_Name_to_id_errors status;
status = _Objects_Name_to_id( &_POSIX_Semaphore_Information, name, 0, id );
if ( status == OBJECTS_SUCCESSFUL ) {
return 0;
} else {
return EINVAL;
}
}