1*062c5bc4SJason Schmidlapp /*
2*062c5bc4SJason Schmidlapp * pte_throw.c
3*062c5bc4SJason Schmidlapp *
4*062c5bc4SJason Schmidlapp * Description:
5*062c5bc4SJason Schmidlapp * This translation unit implements routines which are private to
6*062c5bc4SJason Schmidlapp * the implementation and may be used throughout it.
7*062c5bc4SJason Schmidlapp *
8*062c5bc4SJason Schmidlapp * --------------------------------------------------------------------------
9*062c5bc4SJason Schmidlapp *
10*062c5bc4SJason Schmidlapp * Pthreads-embedded (PTE) - POSIX Threads Library for embedded systems
11*062c5bc4SJason Schmidlapp * Copyright(C) 2008 Jason Schmidlapp
12*062c5bc4SJason Schmidlapp *
13*062c5bc4SJason Schmidlapp * Contact Email: jschmidlapp@users.sourceforge.net
14*062c5bc4SJason Schmidlapp *
15*062c5bc4SJason Schmidlapp *
16*062c5bc4SJason Schmidlapp * Based upon Pthreads-win32 - POSIX Threads Library for Win32
17*062c5bc4SJason Schmidlapp * Copyright(C) 1998 John E. Bossom
18*062c5bc4SJason Schmidlapp * Copyright(C) 1999,2005 Pthreads-win32 contributors
19*062c5bc4SJason Schmidlapp *
20*062c5bc4SJason Schmidlapp * Contact Email: rpj@callisto.canberra.edu.au
21*062c5bc4SJason Schmidlapp *
22*062c5bc4SJason Schmidlapp * The original list of contributors to the Pthreads-win32 project
23*062c5bc4SJason Schmidlapp * is contained in the file CONTRIBUTORS.ptw32 included with the
24*062c5bc4SJason Schmidlapp * source code distribution. The list can also be seen at the
25*062c5bc4SJason Schmidlapp * following World Wide Web location:
26*062c5bc4SJason Schmidlapp * http://sources.redhat.com/pthreads-win32/contributors.html
27*062c5bc4SJason Schmidlapp *
28*062c5bc4SJason Schmidlapp * This library is free software; you can redistribute it and/or
29*062c5bc4SJason Schmidlapp * modify it under the terms of the GNU Lesser General Public
30*062c5bc4SJason Schmidlapp * License as published by the Free Software Foundation; either
31*062c5bc4SJason Schmidlapp * version 2 of the License, or (at your option) any later version.
32*062c5bc4SJason Schmidlapp *
33*062c5bc4SJason Schmidlapp * This library is distributed in the hope that it will be useful,
34*062c5bc4SJason Schmidlapp * but WITHOUT ANY WARRANTY; without even the implied warranty of
35*062c5bc4SJason Schmidlapp * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
36*062c5bc4SJason Schmidlapp * Lesser General Public License for more details.
37*062c5bc4SJason Schmidlapp *
38*062c5bc4SJason Schmidlapp * You should have received a copy of the GNU Lesser General Public
39*062c5bc4SJason Schmidlapp * License along with this library in the file COPYING.LIB;
40*062c5bc4SJason Schmidlapp * if not, write to the Free Software Foundation, Inc.,
41*062c5bc4SJason Schmidlapp * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
42*062c5bc4SJason Schmidlapp */
43*062c5bc4SJason Schmidlapp #include <stdlib.h>
44*062c5bc4SJason Schmidlapp
45*062c5bc4SJason Schmidlapp #include "pthread.h"
46*062c5bc4SJason Schmidlapp #include "implement.h"
47*062c5bc4SJason Schmidlapp
48*062c5bc4SJason Schmidlapp /*
49*062c5bc4SJason Schmidlapp * pte_throw
50*062c5bc4SJason Schmidlapp *
51*062c5bc4SJason Schmidlapp * All canceled and explicitly exited POSIX threads go through
52*062c5bc4SJason Schmidlapp * here. This routine knows how to exit both POSIX initiated threads and
53*062c5bc4SJason Schmidlapp * 'implicit' POSIX threads for each of the possible language modes (C,
54*062c5bc4SJason Schmidlapp * C++).
55*062c5bc4SJason Schmidlapp */
56*062c5bc4SJason Schmidlapp void
pte_throw(unsigned int exception)57*062c5bc4SJason Schmidlapp pte_throw (unsigned int exception)
58*062c5bc4SJason Schmidlapp {
59*062c5bc4SJason Schmidlapp /*
60*062c5bc4SJason Schmidlapp * Don't use pthread_self() to avoid creating an implicit POSIX thread handle
61*062c5bc4SJason Schmidlapp * unnecessarily.
62*062c5bc4SJason Schmidlapp */
63*062c5bc4SJason Schmidlapp pte_thread_t * sp = (pte_thread_t *) pthread_getspecific (pte_selfThreadKey);
64*062c5bc4SJason Schmidlapp
65*062c5bc4SJason Schmidlapp
66*062c5bc4SJason Schmidlapp if (exception != PTE_EPS_CANCEL && exception != PTE_EPS_EXIT)
67*062c5bc4SJason Schmidlapp {
68*062c5bc4SJason Schmidlapp /* Should never enter here */
69*062c5bc4SJason Schmidlapp exit (1);
70*062c5bc4SJason Schmidlapp }
71*062c5bc4SJason Schmidlapp
72*062c5bc4SJason Schmidlapp if (NULL == sp || sp->implicit)
73*062c5bc4SJason Schmidlapp {
74*062c5bc4SJason Schmidlapp /*
75*062c5bc4SJason Schmidlapp * We're inside a non-POSIX initialised OS thread
76*062c5bc4SJason Schmidlapp * so there is no point to jump or throw back to. Just do an
77*062c5bc4SJason Schmidlapp * explicit thread exit here after cleaning up POSIX
78*062c5bc4SJason Schmidlapp * residue (i.e. cleanup handlers, POSIX thread handle etc).
79*062c5bc4SJason Schmidlapp */
80*062c5bc4SJason Schmidlapp unsigned exitCode = 0;
81*062c5bc4SJason Schmidlapp
82*062c5bc4SJason Schmidlapp switch (exception)
83*062c5bc4SJason Schmidlapp {
84*062c5bc4SJason Schmidlapp case PTE_EPS_CANCEL:
85*062c5bc4SJason Schmidlapp exitCode = (unsigned) PTHREAD_CANCELED;
86*062c5bc4SJason Schmidlapp break;
87*062c5bc4SJason Schmidlapp case PTE_EPS_EXIT:
88*062c5bc4SJason Schmidlapp exitCode = (unsigned) sp->exitStatus;;
89*062c5bc4SJason Schmidlapp break;
90*062c5bc4SJason Schmidlapp }
91*062c5bc4SJason Schmidlapp
92*062c5bc4SJason Schmidlapp pte_thread_detach_and_exit_np ();
93*062c5bc4SJason Schmidlapp
94*062c5bc4SJason Schmidlapp // pte_osThreadExit((void*)exitCode);
95*062c5bc4SJason Schmidlapp
96*062c5bc4SJason Schmidlapp }
97*062c5bc4SJason Schmidlapp
98*062c5bc4SJason Schmidlapp #ifdef PTE_CLEANUP_C
99*062c5bc4SJason Schmidlapp
100*062c5bc4SJason Schmidlapp pte_pop_cleanup_all (1);
101*062c5bc4SJason Schmidlapp longjmp (sp->start_mark, exception);
102*062c5bc4SJason Schmidlapp
103*062c5bc4SJason Schmidlapp #else /* PTE_CLEANUP_C */
104*062c5bc4SJason Schmidlapp
105*062c5bc4SJason Schmidlapp #ifdef PTE_CLEANUP_CXX
106*062c5bc4SJason Schmidlapp
107*062c5bc4SJason Schmidlapp switch (exception)
108*062c5bc4SJason Schmidlapp {
109*062c5bc4SJason Schmidlapp case PTE_EPS_CANCEL:
110*062c5bc4SJason Schmidlapp throw pte_exception_cancel ();
111*062c5bc4SJason Schmidlapp break;
112*062c5bc4SJason Schmidlapp case PTE_EPS_EXIT:
113*062c5bc4SJason Schmidlapp throw pte_exception_exit ();
114*062c5bc4SJason Schmidlapp break;
115*062c5bc4SJason Schmidlapp }
116*062c5bc4SJason Schmidlapp
117*062c5bc4SJason Schmidlapp #else
118*062c5bc4SJason Schmidlapp
119*062c5bc4SJason Schmidlapp #error ERROR [__FILE__, line __LINE__]: Cleanup type undefined.
120*062c5bc4SJason Schmidlapp
121*062c5bc4SJason Schmidlapp #endif /* PTE_CLEANUP_CXX */
122*062c5bc4SJason Schmidlapp
123*062c5bc4SJason Schmidlapp #endif /* PTE_CLEANUP_C */
124*062c5bc4SJason Schmidlapp
125*062c5bc4SJason Schmidlapp /* Never reached */
126*062c5bc4SJason Schmidlapp }
127*062c5bc4SJason Schmidlapp
128*062c5bc4SJason Schmidlapp
129*062c5bc4SJason Schmidlapp void
pte_pop_cleanup_all(int execute)130*062c5bc4SJason Schmidlapp pte_pop_cleanup_all (int execute)
131*062c5bc4SJason Schmidlapp {
132*062c5bc4SJason Schmidlapp while (NULL != pte_pop_cleanup (execute))
133*062c5bc4SJason Schmidlapp {
134*062c5bc4SJason Schmidlapp }
135*062c5bc4SJason Schmidlapp }
136*062c5bc4SJason Schmidlapp
137*062c5bc4SJason Schmidlapp
138*062c5bc4SJason Schmidlapp unsigned int
pte_get_exception_services_code(void)139*062c5bc4SJason Schmidlapp pte_get_exception_services_code (void)
140*062c5bc4SJason Schmidlapp {
141*062c5bc4SJason Schmidlapp return (unsigned int) NULL;
142*062c5bc4SJason Schmidlapp }
143