Mercurial > libjeffpc
changeset 757:ac902673ea0a
synch: store synchronization primitive type in info struct
Signed-off-by: Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
| author | Josef 'Jeff' Sipek <jeffpc@josefsipek.net> |
|---|---|
| date | Thu, 25 Jul 2019 12:32:05 -0400 |
| parents | 81a940d03dcd |
| children | de53a9548b85 |
| files | include/jeffpc/synch.h synch.c |
| diffstat | 2 files changed, 16 insertions(+), 0 deletions(-) [+] |
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--- a/include/jeffpc/synch.h Thu Jul 25 12:21:42 2019 -0400 +++ b/include/jeffpc/synch.h Thu Jul 25 12:32:05 2019 -0400 @@ -55,6 +55,7 @@ struct lock_info { uintptr_t magic; + unsigned int type; }; struct lock {
--- a/synch.c Thu Jul 25 12:21:42 2019 -0400 +++ b/synch.c Thu Jul 25 12:32:05 2019 -0400 @@ -37,6 +37,15 @@ */ #define DESTROYED_MAGIC (~0ul) +/* + * Synch types + */ +enum synch_type { + SYNCH_TYPE_MUTEX = 0x4d4d4d4du, /* MMMM */ + SYNCH_TYPE_RW = 0x52575257u, /* RWRW */ + SYNCH_TYPE_COND = 0x43434343u, /* CCCC */ +}; + #ifdef JEFFPC_LOCK_TRACKING static atomic_t lockdep_on = ATOMIC_INITIALIZER(1); static pthread_mutex_t lockdep_lock = PTHREAD_MUTEX_INITIALIZER; @@ -428,6 +437,7 @@ print_invalid_call("MXINIT", where); l->info.magic = (uintptr_t) &l->info; + l->info.type = SYNCH_TYPE_MUTEX; #ifdef JEFFPC_LOCK_TRACKING l->lc = lc; @@ -456,6 +466,7 @@ #endif l->info.magic = DESTROYED_MAGIC; + /* keep the synch type set to aid debugging */ } static void verify_lock_lock(const struct lock_context *where, struct lock *l) @@ -532,6 +543,7 @@ print_invalid_call("RWINIT", where); l->info.magic = (uintptr_t) &l->info; + l->info.type = SYNCH_TYPE_RW; } static void verify_rw_destroy(const struct lock_context *where, struct rwlock *l) @@ -542,6 +554,7 @@ check_rw_magic(l, "destroy", where); l->info.magic = DESTROYED_MAGIC; + /* keep the synch type set to aid debugging */ } static void verify_rw_lock(const struct lock_context *where, struct rwlock *l, @@ -567,6 +580,7 @@ print_invalid_call("CONDINIT", where); c->info.magic = (uintptr_t) &c->info; + c->info.type = SYNCH_TYPE_COND; } static void verify_cond_destroy(const struct lock_context *where, struct cond *c) @@ -577,6 +591,7 @@ check_cond_magic(c, "destroy", where); c->info.magic = DESTROYED_MAGIC; + /* keep the synch type set to aid debugging */ } static void verify_cond_wait(const struct lock_context *where, struct cond *c,