/* [<][>][^][v][top][bottom][index][help] */
1 /* Our pthread support normally needs to intercept a number of thread */
2 /* calls. We arrange to do that here, if appropriate. */
3
4 #ifndef GC_PTHREAD_REDIRECTS_H
5
6 #define GC_PTHREAD_REDIRECTS_H
7
8 #if defined(GC_SOLARIS_THREADS)
9 /* We need to intercept calls to many of the threads primitives, so */
10 /* that we can locate thread stacks and stop the world. */
11 /* Note also that the collector cannot see thread specific data. */
12 /* Thread specific data should generally consist of pointers to */
13 /* uncollectable objects (allocated with GC_malloc_uncollectable, */
14 /* not the system malloc), which are deallocated using the destructor */
15 /* facility in thr_keycreate. Alternatively, keep a redundant pointer */
16 /* to thread specific data on the thread stack. */
17 # include <thread.h>
18 int GC_thr_create(void *stack_base, size_t stack_size,
19 void *(*start_routine)(void *), void *arg, long flags,
20 thread_t *new_thread);
21 int GC_thr_join(thread_t wait_for, thread_t *departed, void **status);
22 int GC_thr_suspend(thread_t target_thread);
23 int GC_thr_continue(thread_t target_thread);
24 void * GC_dlopen(const char *path, int mode);
25 # define thr_create GC_thr_create
26 # define thr_join GC_thr_join
27 # define thr_suspend GC_thr_suspend
28 # define thr_continue GC_thr_continue
29 #endif /* GC_SOLARIS_THREADS */
30
31 #if defined(GC_SOLARIS_PTHREADS)
32 # include <pthread.h>
33 # include <signal.h>
34 extern int GC_pthread_create(pthread_t *new_thread,
35 const pthread_attr_t *attr,
36 void * (*thread_execp)(void *), void *arg);
37 extern int GC_pthread_join(pthread_t wait_for, void **status);
38 # define pthread_join GC_pthread_join
39 # define pthread_create GC_pthread_create
40 #endif
41
42 #if defined(GC_SOLARIS_PTHREADS) || defined(GC_SOLARIS_THREADS)
43 # define dlopen GC_dlopen
44 #endif /* SOLARIS_THREADS || SOLARIS_PTHREADS */
45
46
47 #if !defined(GC_USE_LD_WRAP) && defined(GC_PTHREADS) && !defined(GC_SOLARIS_PTHREADS)
48 /* We treat these similarly. */
49 # include <pthread.h>
50 # include <signal.h>
51
52 int GC_pthread_create(pthread_t *new_thread,
53 const pthread_attr_t *attr,
54 void *(*start_routine)(void *), void *arg);
55 #ifndef GC_DARWIN_THREADS
56 int GC_pthread_sigmask(int how, const sigset_t *set, sigset_t *oset);
57 #endif
58 int GC_pthread_join(pthread_t thread, void **retval);
59 int GC_pthread_detach(pthread_t thread);
60
61 #if defined(GC_OSF1_THREADS) \
62 && defined(_PTHREAD_USE_MANGLED_NAMES_) && !defined(_PTHREAD_USE_PTDNAM_)
63 /* Unless the compiler supports #pragma extern_prefix, the Tru64 UNIX
64 <pthread.h> redefines some POSIX thread functions to use mangled names.
65 If so, undef them before redefining. */
66 # undef pthread_create
67 # undef pthread_join
68 # undef pthread_detach
69 #endif
70
71 # define pthread_create GC_pthread_create
72 # define pthread_join GC_pthread_join
73 # define pthread_detach GC_pthread_detach
74
75 #ifndef GC_DARWIN_THREADS
76 # define pthread_sigmask GC_pthread_sigmask
77 # define dlopen GC_dlopen
78 #endif
79
80 #endif /* GC_xxxxx_THREADS */
81
82 #endif /* GC_PTHREAD_REDIRECTS_H */