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author | Sverker Eriksson <[email protected]> | 2013-09-05 19:23:07 +0200 |
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committer | Sverker Eriksson <[email protected]> | 2013-09-30 17:45:45 +0200 |
commit | 0820017c421bfab27d23aff4da474974f988006c (patch) | |
tree | 11921da008f115ce43ea3b7a3f7a0654ec7b871c /erts/emulator/sys/common/erl_mmap.c | |
parent | d04e3d43f3a96030db0c9b8da8f88cb78f8ec8dc (diff) | |
download | otp-0820017c421bfab27d23aff4da474974f988006c.tar.gz otp-0820017c421bfab27d23aff4da474974f988006c.tar.bz2 otp-0820017c421bfab27d23aff4da474974f988006c.zip |
erts: Add mmap argument to erts_debug:get_internal_state
Diffstat (limited to 'erts/emulator/sys/common/erl_mmap.c')
-rw-r--r-- | erts/emulator/sys/common/erl_mmap.c | 48 |
1 files changed, 47 insertions, 1 deletions
diff --git a/erts/emulator/sys/common/erl_mmap.c b/erts/emulator/sys/common/erl_mmap.c index 0ac08a0004..1d18c1fcc9 100644 --- a/erts/emulator/sys/common/erl_mmap.c +++ b/erts/emulator/sys/common/erl_mmap.c @@ -23,6 +23,7 @@ #include "sys.h" #include "erl_process.h" #include "erl_smp.h" +#include "atom.h" #include "erl_mmap.h" #include <stddef.h> @@ -741,7 +742,7 @@ rbt_foreach_node(RBTree* tree, enum { RECURSE_LEFT, DO_NODE, RECURSE_RIGHT, RETURN_TO_PARENT }state; RBTNode *x = tree->root; - RBT_ASSERT(!parent(x)); + RBT_ASSERT(!x || !parent(x)); state = reverse ? RECURSE_RIGHT : RECURSE_LEFT; while (x) { @@ -1942,6 +1943,51 @@ erts_mmap_init(ErtsMMapInit *init) #endif } +Eterm erts_mmap_info(Process* p) +{ + if (mmap_state.supercarrier) { + ERTS_DECL_AM(sabot); + ERTS_DECL_AM(satop); + ERTS_DECL_AM(suabot); + ERTS_DECL_AM(suatop); + Eterm sa_list, sua_list, list; + Eterm tags[] = { AM_sabot, AM_satop, AM_suabot, AM_suatop }; + UWord values[4]; + Eterm *hp, *hp_end; + Uint may_need; + const Uint PTR_BIG_SZ = HALFWORD_HEAP ? 3 : 2; + + erts_smp_mtx_lock(&mmap_state.mtx); + values[0] = (UWord)mmap_state.sa.bot; + values[1] = (UWord)mmap_state.sa.top; + values[2] = (UWord)mmap_state.sua.bot; + values[3] = (UWord)mmap_state.sua.top; + sa_list = build_free_seg_list(p, &mmap_state.sa.map); + sua_list = build_free_seg_list(p, &mmap_state.sua.map); + erts_smp_mtx_unlock(&mmap_state.mtx); + + may_need = 4*(2+3+PTR_BIG_SZ) + 2*(2+3); + hp = HAlloc(p, may_need); + hp_end = hp + may_need; + + list = erts_bld_atom_uint_2tup_list(&hp, NULL, + sizeof(values)/sizeof(*values), + tags, values); + + sa_list = TUPLE2(hp, am_atom_put("sa_free_segs",12), sa_list); hp+=3; + sua_list = TUPLE2(hp, am_atom_put("sua_free_segs",13), sua_list); hp+=3; + list = CONS(hp, sua_list, list); hp+=2; + list = CONS(hp, sa_list, list); hp+=2; + + ASSERT(hp <= hp_end); + HRelease(p, hp_end, hp); + return list; + } + else { + return am_undefined; + } +} + /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\ * Debug functions * \* */ |