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| author | Rickard Green <[email protected]> | 2011-12-16 13:02:09 +0100 |
|---|---|---|
| committer | Rickard Green <[email protected]> | 2012-04-16 16:32:28 +0200 |
| commit | 414f4fb8dc9a188f8148a1f92e5f9125108e170d (patch) | |
| tree | 319b52ff0171a0f3bec1deb63407caaefe095ab5 /erts/emulator/beam/erl_bif_info.c | |
| parent | 3e454414a40bba082e5dc0be310f71843200dcf4 (diff) | |
| download | otp-414f4fb8dc9a188f8148a1f92e5f9125108e170d.tar.gz otp-414f4fb8dc9a188f8148a1f92e5f9125108e170d.tar.bz2 otp-414f4fb8dc9a188f8148a1f92e5f9125108e170d.zip | |
Optimize process table access
Diffstat (limited to 'erts/emulator/beam/erl_bif_info.c')
| -rw-r--r-- | erts/emulator/beam/erl_bif_info.c | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/erts/emulator/beam/erl_bif_info.c b/erts/emulator/beam/erl_bif_info.c index f889ccdb93..8117b1bfaa 100644 --- a/erts/emulator/beam/erl_bif_info.c +++ b/erts/emulator/beam/erl_bif_info.c @@ -3139,15 +3139,19 @@ BIF_RETTYPE is_process_alive_1(BIF_ALIST_1) if(internal_pid_index(BIF_ARG_1) >= erts_max_processes) BIF_ERROR(BIF_P, BADARG); - rp = erts_pid2proc(BIF_P, ERTS_PROC_LOCK_MAIN, - BIF_ARG_1, ERTS_PROC_LOCK_STATUS); + rp = erts_proc_lookup(BIF_ARG_1); if (!rp) { BIF_RET(am_false); } else { - int have_pending_exit = ERTS_PROC_PENDING_EXIT(rp); - erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_STATUS); - if (have_pending_exit) + int px; +#ifdef ERTS_SMP + px = (erts_atomic32_read_acqb(&rp->aflags) + & (ERTS_PROC_AFLG_PENDING_EXIT|ERTS_PROC_AFLG_EXITING)); +#else + px = 0; +#endif + if (px) ERTS_BIF_AWAIT_X_DATA_TRAP(BIF_P, BIF_ARG_1, am_false); else BIF_RET(am_true); @@ -3751,9 +3755,8 @@ BIF_RETTYPE erts_debug_set_internal_state_2(BIF_ALIST_2) && is_internal_pid(tp[2])) { int xres; ErtsProcLocks rp_locks = ERTS_PROC_LOCKS_XSIG_SEND; - Process *rp = erts_pid2proc_opt(BIF_P, ERTS_PROC_LOCK_MAIN, - tp[2], rp_locks, - ERTS_P2P_FLG_SMP_INC_REFC); + Process *rp = erts_pid2proc(BIF_P, ERTS_PROC_LOCK_MAIN, + tp[2], rp_locks); if (!rp) { DECL_AM(dead); BIF_RET(AM_dead); @@ -3779,7 +3782,6 @@ BIF_RETTYPE erts_debug_set_internal_state_2(BIF_ALIST_2) rp_locks &= ~ERTS_PROC_LOCK_MAIN; #endif erts_smp_proc_unlock(rp, rp_locks); - erts_smp_proc_dec_refc(rp); if (xres > 1) { DECL_AM(message); BIF_RET(AM_message); @@ -3990,7 +3992,7 @@ static Eterm lcnt_build_lock_term(Eterm **hpp, Uint *szp, erts_lcnt_lock_t *lock id = am_atom_put(ltype, strlen(ltype)); } else if (lock->flag & ERTS_LCNT_LT_PROCLOCK) { /* use registered names as id's for process locks if available */ - proc = erts_pid2proc_unlocked(lock->id); + proc = erts_proc_lookup(lock->id); if (proc && proc->reg) { id = proc->reg->name; } else { |