Cross Reference: /external/valgrind/main/coregrind/m

Lines Matching defs:sema
3 /*--- Semaphore stuff.                                      sema.c ---*/
44    Slower (than the removed futex-based sema scheme) but more portable
55 void ML_(sema_init)(vg_sema_t *sema)
59    r = VG_(pipe)(sema->pipe);
62    vg_assert(sema->pipe[0] != sema->pipe[1]);
64    sema->pipe[0] = VG_(safe_fd)(sema->pipe[0]);
65    sema->pipe[1] = VG_(safe_fd)(sema->pipe[1]);
68       VG_(debugLog)(0,"zz","sema_init: %d %d\n", sema->pipe[0], 
69                                                  sema->pipe[1]);
70    vg_assert(sema->pipe[0] != sema->pipe[1]);
72    sema->owner_lwpid = -1;
79    INNER_REQUEST(ANNOTATE_RWLOCK_CREATE(sema));
80    INNER_REQUEST(ANNOTATE_BENIGN_RACE_SIZED(&sema->owner_lwpid,
81                                             sizeof(sema->owner_lwpid), ""));
82    res = VG_(write)(sema->pipe[1], buf, 1);
86 void ML_(sema_deinit)(vg_sema_t *sema)
88    vg_assert(sema->owner_lwpid != -1); /* must be initialised */
89    vg_assert(sema->pipe[0] != sema->pipe[1]);
90    INNER_REQUEST(ANNOTATE_RWLOCK_DESTROY(sema));
91    VG_(close)(sema->pipe[0]);
92    VG_(close)(sema->pipe[1]);
93    sema->pipe[0] = sema->pipe[1] = -1;
94    sema->owner_lwpid = -1;
98 void ML_(sema_down)( vg_sema_t *sema, Bool as_LL )
104    vg_assert(sema->owner_lwpid != lwpid); /* can't have it already */
105    vg_assert(sema->pipe[0] != sema->pipe[1]);
109    ret = VG_(read)(sema->pipe[0], buf, 1);
110    INNER_REQUEST(ANNOTATE_RWLOCK_ACQUIRED(sema, /*is_w*/1));
125    sema->owner_lwpid = lwpid;
126    sema->held_as_LL = as_LL;
130 void ML_(sema_up)( vg_sema_t *sema, Bool as_LL )
134    vg_assert(as_LL == sema->held_as_LL);
137    vg_assert(sema->owner_lwpid != -1); /* must be initialised */
138    vg_assert(sema->pipe[0] != sema->pipe[1]);
139    vg_assert(sema->owner_lwpid == VG_(gettid)()); /* must have it */
141    sema->owner_lwpid = 0;
143    INNER_REQUEST(ANNOTATE_RWLOCK_RELEASED(sema, /*is_w*/1));
144    ret = VG_(write)(sema->pipe[1], buf, 1);