cpython-lru_cache-weakref: Python/thread

annotate Python/thread_beos.h @ 62743:2145593d108d legacy-trunk v2.7

move sections

author	Benjamin Peterson <benjamin@python.org>
date	Sat, 03 Jul 2010 13:57:30 +0000
parents	fd25030223b0
children	b36cb4602e21

rev	line source
9603 c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	1 #include <kernel/OS.h>
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	2 #include <support/SupportDefs.h>
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	3 #include <errno.h>
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	4
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	5 /* ----------------------------------------------------------------------
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	6 * Fast locking mechanism described by Benoit Schillings (benoit@be.com)
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	7 * in the Be Developer's Newsletter, Issue #26 (http://www.be.com/).
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	8 */
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	9 typedef struct benaphore {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	10 sem_id _sem;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	11 int32 _atom;
9603 c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	12 } benaphore_t;
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	13
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	14 static status_t benaphore_create( const char name, benaphore_t ben );
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	15 static status_t benaphore_destroy( benaphore_t *ben );
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	16 static status_t benaphore_lock( benaphore_t *ben );
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	17 static status_t benaphore_timedlock( benaphore_t *ben, bigtime_t micros );
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	18 static status_t benaphore_unlock( benaphore_t *ben );
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	19
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	20 static status_t benaphore_create( const char name, benaphore_t ben )
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	21 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	22 if( ben != NULL ) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	23 ben->_atom = 0;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	24 ben->_sem = create_sem( 0, name );
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	25
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	26 if( ben->_sem < B_NO_ERROR ) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	27 return B_BAD_SEM_ID;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	28 }
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	29 } else {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	30 return EFAULT;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	31 }
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	32
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	33 return EOK;
9603 c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	34 }
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	35
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	36 static status_t benaphore_destroy( benaphore_t *ben )
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	37 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	38 if( ben->_sem >= B_NO_ERROR ) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	39 status_t retval = benaphore_timedlock( ben, 0 );
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	40
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	41 if( retval == EOK \|\| retval == EWOULDBLOCK ) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	42 status_t del_retval = delete_sem( ben->_sem );
9603 c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	43
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	44 return del_retval;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	45 }
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	46 }
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	47
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	48 return B_BAD_SEM_ID;
9603 c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	49 }
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	50
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	51 static status_t benaphore_lock( benaphore_t *ben )
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	52 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	53 int32 prev = atomic_add( &(ben->_atom), 1 );
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	54
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	55 if( prev > 0 ) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	56 return acquire_sem( ben->_sem );
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	57 }
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	58
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	59 return EOK;
9603 c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	60 }
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	61
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	62 static status_t benaphore_timedlock( benaphore_t *ben, bigtime_t micros )
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	63 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	64 int32 prev = atomic_add( &(ben->_atom), 1 );
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	65
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	66 if( prev > 0 ) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	67 status_t retval = acquire_sem_etc( ben->_sem, 1, B_TIMEOUT, micros );
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	68
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	69 switch( retval ) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	70 case B_WOULD_BLOCK: /* Fall through... */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	71 case B_TIMED_OUT:
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	72 return EWOULDBLOCK;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	73 break;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	74 case B_OK:
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	75 return EOK;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	76 break;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	77 default:
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	78 return retval;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	79 break;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	80 }
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	81 }
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	82
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	83 return EOK;
9603 c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	84 }
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	85
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	86 static status_t benaphore_unlock( benaphore_t *ben )
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	87 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	88 int32 prev = atomic_add( &(ben->_atom), -1 );
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	89
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	90 if( prev > 1 ) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	91 return release_sem( ben->_sem );
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	92 }
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	93
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	94 return EOK;
9603 c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	95 }
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	96
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	97 /* ----------------------------------------------------------------------
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	98 * Initialization.
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	99 */
9679 877d23bd5bdc Thanks to Chris Herborth, the thread primitives now have proper Py* Guido van Rossum <guido@python.org> parents: 9603 diff changeset	100 static void PyThread__init_thread( void )
9603 c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	101 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	102 /* Do nothing. */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	103 return;
9603 c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	104 }
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	105
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	106 /* ----------------------------------------------------------------------
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	107 * Thread support.
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	108 *
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	109 * Only ANSI C, renamed functions here; you can't use K&R on BeOS,
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	110 * and there's no legacy thread module to support.
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	111 */
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	112
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	113 static int32 thread_count = 0;
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	114
20468 ebfd87e87884 Partial patch from SF #452266, by Jason Petrone. Guido van Rossum <guido@python.org> parents: 14375 diff changeset	115 long PyThread_start_new_thread( void (func)(void ), void *arg )
9603 c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	116 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	117 status_t success = 0;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	118 thread_id tid;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	119 char name[B_OS_NAME_LENGTH];
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	120 int32 this_thread;
9603 c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	121
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	122 dprintf(("PyThread_start_new_thread called\n"));
9603 c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	123
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	124 /* We are so very thread-safe... */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	125 this_thread = atomic_add( &thread_count, 1 );
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	126 PyOS_snprintf(name, sizeof(name),
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	127 "python thread (%d)", this_thread );
9603 c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	128
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	129 tid = spawn_thread( (thread_func)func, name,
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	130 B_NORMAL_PRIORITY, arg );
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	131 if( tid > B_NO_ERROR ) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	132 success = resume_thread( tid );
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	133 }
9603 c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	134
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	135 return ( success == B_NO_ERROR ? tid : -1 );
9603 c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	136 }
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	137
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	138 long PyThread_get_thread_ident( void )
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	139 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	140 /* Presumed to return the current thread's ID... */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	141 thread_id tid;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	142 tid = find_thread( NULL );
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	143
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	144 return ( tid != B_NAME_NOT_FOUND ? tid : -1 );
9603 c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	145 }
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	146
59086 df5719c298db #4852: Remove dead code in every thread implementation, unused for many years. Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 21766 diff changeset	147 void PyThread_exit_thread( void )
9603 c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	148 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	149 int32 threads;
9603 c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	150
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	151 dprintf(("PyThread_exit_thread called\n"));
9603 c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	152
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	153 /* Thread-safe way to read a variable without a mutex: */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	154 threads = atomic_add( &thread_count, 0 );
9603 c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	155
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	156 if( threads == 0 ) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	157 /* No threads around, so exit main(). */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	158 exit(0);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	159 } else {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	160 /* Oh, we're a thread, let's try to exit gracefully... */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	161 exit_thread( B_NO_ERROR );
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	162 }
9603 c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	163 }
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	164
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	165 /* ----------------------------------------------------------------------
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	166 * Lock support.
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	167 */
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	168
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	169 static int32 lock_count = 0;
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	170
9679 877d23bd5bdc Thanks to Chris Herborth, the thread primitives now have proper Py* Guido van Rossum <guido@python.org> parents: 9603 diff changeset	171 PyThread_type_lock PyThread_allocate_lock( void )
9603 c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	172 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	173 benaphore_t *lock;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	174 status_t retval;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	175 char name[B_OS_NAME_LENGTH];
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	176 int32 this_lock;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	177
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	178 dprintf(("PyThread_allocate_lock called\n"));
9603 c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	179
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	180 lock = (benaphore_t *)malloc( sizeof( benaphore_t ) );
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	181 if( lock == NULL ) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	182 /* TODO: that's bad, raise MemoryError */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	183 return (PyThread_type_lock)NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	184 }
9603 c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	185
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	186 this_lock = atomic_add( &lock_count, 1 );
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	187 PyOS_snprintf(name, sizeof(name), "python lock (%d)", this_lock);
9603 c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	188
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	189 retval = benaphore_create( name, lock );
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	190 if( retval != EOK ) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	191 /* TODO: that's bad, raise an exception */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	192 return (PyThread_type_lock)NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	193 }
9603 c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	194
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	195 dprintf(("PyThread_allocate_lock() -> %p\n", lock));
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	196 return (PyThread_type_lock) lock;
9603 c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	197 }
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	198
9679 877d23bd5bdc Thanks to Chris Herborth, the thread primitives now have proper Py* Guido van Rossum <guido@python.org> parents: 9603 diff changeset	199 void PyThread_free_lock( PyThread_type_lock lock )
9603 c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	200 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	201 status_t retval;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	202
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	203 dprintf(("PyThread_free_lock(%p) called\n", lock));
9603 c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	204
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	205 retval = benaphore_destroy( (benaphore_t *)lock );
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	206 if( retval != EOK ) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	207 /* TODO: that's bad, raise an exception */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	208 return;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	209 }
9603 c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	210 }
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	211
9679 877d23bd5bdc Thanks to Chris Herborth, the thread primitives now have proper Py* Guido van Rossum <guido@python.org> parents: 9603 diff changeset	212 int PyThread_acquire_lock( PyThread_type_lock lock, int waitflag )
9603 c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	213 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	214 int success;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	215 status_t retval;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	216
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	217 dprintf(("PyThread_acquire_lock(%p, %d) called\n", lock, waitflag));
9603 c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	218
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	219 if( waitflag ) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	220 retval = benaphore_lock( (benaphore_t *)lock );
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	221 } else {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	222 retval = benaphore_timedlock( (benaphore_t *)lock, 0 );
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	223 }
9603 c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	224
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	225 if( retval == EOK ) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	226 success = 1;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	227 } else {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	228 success = 0;
9603 c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	229
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	230 /* TODO: that's bad, raise an exception */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	231 }
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	232
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	233 dprintf(("PyThread_acquire_lock(%p, %d) -> %d\n", lock, waitflag, success));
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	234 return success;
9603 c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	235 }
c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	236
9679 877d23bd5bdc Thanks to Chris Herborth, the thread primitives now have proper Py* Guido van Rossum <guido@python.org> parents: 9603 diff changeset	237 void PyThread_release_lock( PyThread_type_lock lock )
9603 c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	238 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	239 status_t retval;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	240
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	241 dprintf(("PyThread_release_lock(%p) called\n", lock));
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	242
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	243 retval = benaphore_unlock( (benaphore_t *)lock );
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	244 if( retval != EOK ) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	245 /* TODO: that's bad, raise an exception */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	246 return;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59086 diff changeset	247 }
9603 c4e2da477949 Adding thread support for BeOS by Chris Herborth. Guido van Rossum <guido@python.org> parents: diff changeset	248 }

Mercurial > cpython-lru_cache-weakref

annotate Python/thread_beos.h @ 62743:2145593d108d legacy-trunk v2.7