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-rw-r--r--erts/emulator/beam/erl_bif_ddll.c78
-rw-r--r--erts/emulator/beam/global.h4
-rw-r--r--erts/emulator/beam/io.c71
3 files changed, 84 insertions, 69 deletions
diff --git a/erts/emulator/beam/erl_bif_ddll.c b/erts/emulator/beam/erl_bif_ddll.c
index e18b1f0159..2b6deae7be 100644
--- a/erts/emulator/beam/erl_bif_ddll.c
+++ b/erts/emulator/beam/erl_bif_ddll.c
@@ -104,12 +104,18 @@ static void dereference_all_processes(DE_Handle *dh);
static void restore_process_references(DE_Handle *dh);
static void ddll_no_more_references(void *vdh);
-#define lock_drv_list() erts_smp_mtx_lock(&erts_driver_list_lock)
-#define unlock_drv_list() erts_smp_mtx_unlock(&erts_driver_list_lock)
+#define lock_drv_list() erts_smp_rwmtx_rwlock(&erts_driver_list_lock)
+#define unlock_drv_list() erts_smp_rwmtx_rwunlock(&erts_driver_list_lock)
#define assert_drv_list_locked() \
- ERTS_SMP_LC_ASSERT(erts_smp_lc_mtx_is_locked(&erts_driver_list_lock))
+ ERTS_SMP_LC_ASSERT(erts_smp_lc_rwmtx_is_rwlocked(&erts_driver_list_lock) \
+ || erts_smp_lc_rwmtx_is_rlocked(&erts_driver_list_lock))
+#define assert_drv_list_rwlocked() \
+ ERTS_SMP_LC_ASSERT(erts_smp_lc_rwmtx_is_rwlocked(&erts_driver_list_lock))
+#define assert_drv_list_rlocked() \
+ ERTS_SMP_LC_ASSERT(erts_smp_lc_rwmtx_is_rlocked(&erts_driver_list_lock))
#define assert_drv_list_not_locked() \
- ERTS_SMP_LC_ASSERT(!erts_smp_lc_mtx_is_locked(&erts_driver_list_lock))
+ ERTS_SMP_LC_ASSERT(!erts_smp_lc_rwmtx_is_rwlocked(&erts_driver_list_lock) \
+ && !erts_smp_lc_rwmtx_is_rlocked(&erts_driver_list_lock))
#define FREE_PORT_FLAGS (ERTS_PORT_SFLGS_DEAD & (~ERTS_PORT_SFLG_INITIALIZING))
@@ -383,7 +389,7 @@ BIF_RETTYPE erl_ddll_try_load_3(BIF_ALIST_3)
ok_term = mkatom("loaded");
}
}
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
if (kill_ports) {
/* Avoid closing the driver by referencing it */
erts_ddll_reference_driver(dh);
@@ -582,13 +588,13 @@ Eterm erl_ddll_try_unload_2(BIF_ALIST_2)
dh->reload_full_path = dh->reload_driver_name = NULL;
dh->reload_flags = 0;
}
- if (dh->port_count > 0) {
+ if (erts_smp_atomic32_read_nob(&dh->port_count) > 0) {
++kill_ports;
}
dh->status = ERL_DE_UNLOAD;
ok_term = am_pending_driver;
done:
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
if (kill_ports > 1) {
/* Avoid closing the driver by referencing it */
erts_ddll_reference_driver(dh);
@@ -766,7 +772,7 @@ BIF_RETTYPE erl_ddll_info_2(BIF_ALIST_2)
} else if (drv->handle->status == ERL_DE_PERMANENT) {
res = am_permanent;
} else {
- res = make_small(drv->handle->port_count);
+ res = make_small(erts_smp_atomic32_read_nob(&drv->handle->port_count));
}
goto done;
case am_linked_in_driver:
@@ -1024,7 +1030,8 @@ void erts_ddll_proc_dead(Process *p, ErtsProcLocks plocks)
}
dh->status = ERL_DE_UNLOAD;
}
- if (!left && drv->handle->port_count > 0) {
+ if (!left
+ && erts_smp_atomic32_read_nob(&drv->handle->port_count) > 0) {
if (kill_ports) {
DE_Handle *dh = drv->handle;
erts_ddll_reference_driver(dh);
@@ -1054,7 +1061,7 @@ void erts_ddll_proc_dead(Process *p, ErtsProcLocks plocks)
void erts_ddll_lock_driver(DE_Handle *dh, char *name)
{
DE_ProcEntry *p,*q;
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
notify_all(dh, name,
ERL_DE_PROC_AWAIT_LOAD, am_UP, am_permanent);
notify_all(dh, name,
@@ -1077,19 +1084,22 @@ void erts_ddll_lock_driver(DE_Handle *dh, char *name)
void erts_ddll_increment_port_count(DE_Handle *dh)
{
assert_drv_list_locked();
- dh->port_count++;
+ erts_smp_atomic32_inc_nob(&dh->port_count);
}
void erts_ddll_decrement_port_count(DE_Handle *dh)
{
assert_drv_list_locked();
- ASSERT(dh->port_count > 0);
- dh->port_count--;
+#if DEBUG
+ ASSERT(erts_smp_atomic32_dec_read_nob(&dh->port_count) >= 0);
+#else
+ erts_smp_atomic32_dec_nob(&dh->port_count);
+#endif
}
static void first_ddll_reference(DE_Handle *dh)
{
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
erts_refc_init(&(dh->refc),1);
}
@@ -1117,7 +1127,7 @@ void erts_ddll_dereference_driver(DE_Handle *dh)
static void dereference_all_processes(DE_Handle *dh)
{
DE_ProcEntry *p;
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
for(p = dh->procs;p != NULL; p = p->next) {
if (p->awaiting_status == ERL_DE_PROC_LOADED) {
ASSERT(!(p->flags & ERL_DE_FL_DEREFERENCED));
@@ -1130,7 +1140,7 @@ static void dereference_all_processes(DE_Handle *dh)
static void restore_process_references(DE_Handle *dh)
{
DE_ProcEntry *p;
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
ASSERT(erts_refc_read(&(dh->refc),0) == 0);
for(p = dh->procs;p != NULL; p = p->next) {
if (p->awaiting_status == ERL_DE_PROC_LOADED) {
@@ -1358,7 +1368,7 @@ static int is_last_user(DE_Handle *dh, Process *proc) {
DE_ProcEntry *p = dh->procs;
int found = 0;
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
while (p != NULL) {
if (p->proc == proc && p->awaiting_status == ERL_DE_PROC_LOADED) {
@@ -1379,7 +1389,7 @@ static DE_ProcEntry *find_proc_entry(DE_Handle *dh, Process *proc, Uint status)
{
DE_ProcEntry *p = dh->procs;
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
while (p != NULL) {
if (p->proc == proc && p->awaiting_status == status) {
@@ -1406,7 +1416,7 @@ static int num_procs(DE_Handle *dh, Uint status) {
DE_ProcEntry *p = dh->procs;
int i = 0;
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
while (p != NULL) {
if (p->awaiting_status == status) {
@@ -1421,7 +1431,7 @@ static int num_entries(DE_Handle *dh, Process *proc, Uint status) {
DE_ProcEntry *p = dh->procs;
int i = 0;
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
while (p != NULL) {
if (p->awaiting_status == status && p->proc == proc) {
++i;
@@ -1434,7 +1444,7 @@ static int num_entries(DE_Handle *dh, Process *proc, Uint status) {
static void add_proc_loaded(DE_Handle *dh, Process *proc)
{
DE_ProcEntry *p;
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
p = erts_alloc(ERTS_ALC_T_DDLL_PROCESS, sizeof(DE_ProcEntry));
p->proc = proc;
p->flags = 0;
@@ -1446,7 +1456,7 @@ static void add_proc_loaded(DE_Handle *dh, Process *proc)
static void add_proc_loaded_deref(DE_Handle *dh, Process *proc)
{
DE_ProcEntry *p;
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
p = erts_alloc(ERTS_ALC_T_DDLL_PROCESS, sizeof(DE_ProcEntry));
p->proc = proc;
p->awaiting_status = ERL_DE_PROC_LOADED;
@@ -1466,7 +1476,7 @@ static void add_proc_waiting(DE_Handle *dh, Process *proc,
Uint status, Eterm ref)
{
DE_ProcEntry *p;
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
p = erts_alloc(ERTS_ALC_T_DDLL_PROCESS, sizeof(DE_ProcEntry));
p->proc = proc;
p->flags = 0;
@@ -1480,7 +1490,7 @@ static Eterm add_monitor(Process *p, DE_Handle *dh, Uint status)
{
Eterm r;
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
r = erts_make_ref(p);
add_proc_waiting(dh, p, status, r);
return r;
@@ -1491,7 +1501,7 @@ static void set_driver_reloading(DE_Handle *dh, Process *proc, char *path, char
{
DE_ProcEntry *p;
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
p = erts_alloc(ERTS_ALC_T_DDLL_PROCESS, sizeof(DE_ProcEntry));
p->proc = proc;
p->awaiting_status = ERL_DE_OK;
@@ -1512,7 +1522,7 @@ static int do_load_driver_entry(DE_Handle *dh, char *path, char *name)
int res;
ErlDrvEntry *dp;
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
if ((res = erts_sys_ddll_open(path, &(dh->handle))) != ERL_DE_NO_ERROR) {
return res;
@@ -1550,7 +1560,7 @@ static int do_load_driver_entry(DE_Handle *dh, char *path, char *name)
goto error;
}
erts_smp_atomic_init_nob(&(dh->refc), (erts_aint_t) 0);
- dh->port_count = 0;
+ erts_smp_atomic32_init_nob(&dh->port_count, 0);
dh->full_path = erts_alloc(ERTS_ALC_T_DDLL_HANDLE, sys_strlen(path) + 1);
sys_strcpy(dh->full_path, path);
dh->flags = 0;
@@ -1576,7 +1586,7 @@ static int do_unload_driver_entry(DE_Handle *dh, Eterm *save_name)
{
erts_driver_t *q, *p = driver_list;
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
while (p != NULL) {
if (p->handle == dh) {
@@ -1616,11 +1626,11 @@ static int load_driver_entry(DE_Handle **dhp, char *path, char *name)
int res;
DE_Handle *dh = erts_alloc(ERTS_ALC_T_DDLL_HANDLE, sizeof(DE_Handle));
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
dh->handle = NULL;
dh->procs = NULL;
- dh->port_count = 0;
+ erts_smp_atomic32_init_nob(&dh->port_count, 0);
erts_refc_init(&(dh->refc), (erts_aint_t) 0);
dh->status = -1;
dh->reload_full_path = NULL;
@@ -1654,7 +1664,7 @@ static int reload_driver_entry(DE_Handle *dh)
int loadres;
Uint flags = dh->reload_flags;
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
dh->reload_full_path = NULL;
dh->reload_driver_name = NULL;
@@ -1692,7 +1702,7 @@ static void notify_proc(Process *proc, Eterm ref, Eterm driver_name, Eterm type,
ErtsProcLocks rp_locks = 0;
ERTS_SMP_CHK_NO_PROC_LOCKS;
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
if (errcode != 0) {
int need = load_error_need(errcode);
Eterm e;
@@ -1725,7 +1735,7 @@ static void notify_all(DE_Handle *dh, char *name, Uint awaiting, Eterm type, Ete
{
DE_ProcEntry **p;
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
p = &(dh->procs);
while (*p != NULL) {
@@ -1868,7 +1878,7 @@ static int build_proc_info(DE_Handle *dh, ProcEntryInfo **out_pei, Uint filter)
int i;
DE_ProcEntry *pe;
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
for (pe = dh->procs; pe != NULL; pe = pe->next) {
Eterm id = pe->proc->common.id;
diff --git a/erts/emulator/beam/global.h b/erts/emulator/beam/global.h
index 0de11afee9..bce4619645 100644
--- a/erts/emulator/beam/global.h
+++ b/erts/emulator/beam/global.h
@@ -110,7 +110,7 @@ typedef struct {
or that wait for it to change state */
erts_refc_t refc; /* Number of ports/processes having
references to the driver */
- Uint port_count; /* Number of ports using the driver */
+ erts_smp_atomic32_t port_count; /* Number of ports using the driver */
Uint flags; /* ERL_DE_FL_KILL_PORTS */
int status; /* ERL_DE_xxx */
char *full_path; /* Full path of the driver */
@@ -162,7 +162,7 @@ struct erts_driver_t_ {
};
extern erts_driver_t *driver_list;
-extern erts_smp_mtx_t erts_driver_list_lock;
+extern erts_smp_rwmtx_t erts_driver_list_lock;
extern void erts_ddll_init(void);
extern void erts_ddll_lock_driver(DE_Handle *dh, char *name);
diff --git a/erts/emulator/beam/io.c b/erts/emulator/beam/io.c
index 78c27b1385..9d38e5539e 100644
--- a/erts/emulator/beam/io.c
+++ b/erts/emulator/beam/io.c
@@ -51,7 +51,7 @@ extern ErlDrvEntry spawn_driver_entry;
extern ErlDrvEntry *driver_tab[]; /* table of static drivers, only used during initialization */
erts_driver_t *driver_list; /* List of all drivers, static and dynamic. */
-erts_smp_mtx_t erts_driver_list_lock; /* Mutex for driver list */
+erts_smp_rwmtx_t erts_driver_list_lock; /* Mutex for driver list */
static erts_smp_tsd_key_t driver_list_lock_status_key; /*stop recursive locks when calling
driver init */
static erts_smp_tsd_key_t driver_list_last_error_key; /* Save last DDLL error on a
@@ -532,14 +532,14 @@ erts_open_driver(erts_driver_t* driver, /* Pointer to driver. */
ERTS_SMP_CHK_NO_PROC_LOCKS;
- erts_smp_mtx_lock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rlock(&erts_driver_list_lock);
if (!driver) {
for (driver = driver_list; driver; driver = driver->next) {
if (sys_strcmp(driver->name, name) == 0)
break;
}
if (!driver) {
- erts_smp_mtx_unlock(&erts_driver_list_lock);
+ erts_smp_rwmtx_runlock(&erts_driver_list_lock);
ERTS_OPEN_DRIVER_RET(NULL, -3, BADARG);
}
}
@@ -584,7 +584,7 @@ erts_open_driver(erts_driver_t* driver, /* Pointer to driver. */
}
if (driver == NULL || (driver != &spawn_driver && opts->exit_status)) {
- erts_smp_mtx_unlock(&erts_driver_list_lock);
+ erts_smp_rwmtx_runlock(&erts_driver_list_lock);
ERTS_OPEN_DRIVER_RET(NULL, -3, BADARG);
}
@@ -596,7 +596,7 @@ erts_open_driver(erts_driver_t* driver, /* Pointer to driver. */
erts_ddll_increment_port_count(driver->handle);
erts_ddll_reference_driver(driver->handle);
}
- erts_smp_mtx_unlock(&erts_driver_list_lock);
+ erts_smp_rwmtx_runlock(&erts_driver_list_lock);
/*
* We'll set up the port before calling the start function,
@@ -606,9 +606,9 @@ erts_open_driver(erts_driver_t* driver, /* Pointer to driver. */
port = create_port(name, driver, driver_lock, pid, &port_errno);
if (!port) {
if (driver->handle) {
- erts_smp_mtx_lock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rlock(&erts_driver_list_lock);
erts_ddll_decrement_port_count(driver->handle);
- erts_smp_mtx_unlock(&erts_driver_list_lock);
+ erts_smp_rwmtx_runlock(&erts_driver_list_lock);
erts_ddll_dereference_driver(driver->handle);
}
if (port_errno)
@@ -681,9 +681,9 @@ erts_open_driver(erts_driver_t* driver, /* Pointer to driver. */
port->linebuf = NULL;
}
if (driver->handle != NULL) {
- erts_smp_mtx_lock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rlock(&erts_driver_list_lock);
erts_ddll_decrement_port_count(driver->handle);
- erts_smp_mtx_unlock(&erts_driver_list_lock);
+ erts_smp_rwmtx_runlock(&erts_driver_list_lock);
}
kill_port(port);
erts_port_release(port);
@@ -740,9 +740,9 @@ driver_create_port(ErlDrvPort creator_port_ix, /* Creating port */
ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(creator_port));
driver = creator_port->drv_ptr;
- erts_smp_mtx_lock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rlock(&erts_driver_list_lock);
if (!erts_ddll_driver_ok(driver->handle)) {
- erts_smp_mtx_unlock(&erts_driver_list_lock);
+ erts_smp_rwmtx_runlock(&erts_driver_list_lock);
return ERTS_INVALID_ERL_DRV_PORT;
}
@@ -755,14 +755,14 @@ driver_create_port(ErlDrvPort creator_port_ix, /* Creating port */
driver_lock = driver->lock;
#endif
- erts_smp_mtx_unlock(&erts_driver_list_lock);
+ erts_smp_rwmtx_runlock(&erts_driver_list_lock);
port = create_port(name, driver, driver_lock, pid, NULL);
if (!port) {
if (driver->handle) {
- erts_smp_mtx_lock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rlock(&erts_driver_list_lock);
erts_ddll_decrement_port_count(driver->handle);
- erts_smp_mtx_unlock(&erts_driver_list_lock);
+ erts_smp_rwmtx_runlock(&erts_driver_list_lock);
erts_ddll_dereference_driver(driver->handle);
}
return ERTS_INVALID_ERL_DRV_PORT;
@@ -773,9 +773,9 @@ driver_create_port(ErlDrvPort creator_port_ix, /* Creating port */
if (ERTS_PROC_IS_EXITING(rp)) {
erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK);
if (driver->handle) {
- erts_smp_mtx_lock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rlock(&erts_driver_list_lock);
erts_ddll_decrement_port_count(driver->handle);
- erts_smp_mtx_unlock(&erts_driver_list_lock);
+ erts_smp_rwmtx_runlock(&erts_driver_list_lock);
}
kill_port(port);
erts_port_release(port);
@@ -1285,6 +1285,9 @@ void erts_init_io(int port_tab_size,
int port_tab_size_ignore_files)
{
ErlDrvEntry** dp;
+ erts_smp_rwmtx_opt_t drv_list_rwmtx_opts = ERTS_SMP_RWMTX_OPT_DEFAULT_INITER;
+ drv_list_rwmtx_opts.type = ERTS_SMP_RWMTX_TYPE_EXTREMELY_FREQUENT_READ;
+ drv_list_rwmtx_opts.lived = ERTS_SMP_RWMTX_LONG_LIVED;
#ifdef ERTS_SMP
init_xports_list_alloc();
@@ -1303,7 +1306,9 @@ void erts_init_io(int port_tab_size,
else if (port_tab_size < ERTS_MIN_PORTS)
port_tab_size = ERTS_MIN_PORTS;
- erts_smp_mtx_init(&erts_driver_list_lock,"driver_list");
+ erts_smp_rwmtx_init_opt(&erts_driver_list_lock,
+ &drv_list_rwmtx_opts,
+ "driver_list");
driver_list = NULL;
erts_smp_tsd_key_create(&driver_list_lock_status_key);
erts_smp_tsd_key_create(&driver_list_last_error_key);
@@ -1321,7 +1326,7 @@ void erts_init_io(int port_tab_size,
sys_init_io();
erts_smp_tsd_set(driver_list_lock_status_key, (void *) 1);
- erts_smp_mtx_lock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rwlock(&erts_driver_list_lock);
init_driver(&fd_driver, &fd_driver_entry, NULL);
init_driver(&vanilla_driver, &vanilla_driver_entry, NULL);
@@ -1330,7 +1335,7 @@ void erts_init_io(int port_tab_size,
erts_add_driver_entry(*dp, NULL, 1);
erts_smp_tsd_set(driver_list_lock_status_key, NULL);
- erts_smp_mtx_unlock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rwunlock(&erts_driver_list_lock);
}
/*
@@ -1921,9 +1926,9 @@ terminate_port(Port *prt)
#endif
}
if(drv->handle != NULL) {
- erts_smp_mtx_lock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rlock(&erts_driver_list_lock);
erts_ddll_decrement_port_count(drv->handle);
- erts_smp_mtx_unlock(&erts_driver_list_lock);
+ erts_smp_rwmtx_runlock(&erts_driver_list_lock);
}
stopq(prt); /* clear queue memory */
if(prt->linebuf != NULL){
@@ -4725,20 +4730,20 @@ int driver_lock_driver(ErlDrvPort ix)
ERTS_SMP_CHK_NO_PROC_LOCKS;
- erts_smp_mtx_lock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rwlock(&erts_driver_list_lock);
if (prt == NULL) {
- erts_smp_mtx_unlock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rwunlock(&erts_driver_list_lock);
return -1;
}
ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
if ((dh = (DE_Handle*)prt->drv_ptr->handle ) == NULL) {
- erts_smp_mtx_unlock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rwunlock(&erts_driver_list_lock);
return -1;
}
erts_ddll_lock_driver(dh, prt->drv_ptr->name);
- erts_smp_mtx_unlock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rwunlock(&erts_driver_list_lock);
return 0;
}
@@ -4748,7 +4753,7 @@ static int maybe_lock_driver_list(void)
void *rec_lock;
rec_lock = erts_smp_tsd_get(driver_list_lock_status_key);
if (rec_lock == 0) {
- erts_smp_mtx_lock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rwlock(&erts_driver_list_lock);
return 1;
}
return 0;
@@ -4756,7 +4761,7 @@ static int maybe_lock_driver_list(void)
static void maybe_unlock_driver_list(int doit)
{
if (doit) {
- erts_smp_mtx_unlock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rwunlock(&erts_driver_list_lock);
}
}
/*
@@ -5055,7 +5060,7 @@ int erts_add_driver_entry(ErlDrvEntry *de, DE_Handle *handle, int driver_list_lo
int res;
if (!driver_list_locked) {
- erts_smp_mtx_lock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rwlock(&erts_driver_list_lock);
}
dp->next = driver_list;
@@ -5084,7 +5089,7 @@ int erts_add_driver_entry(ErlDrvEntry *de, DE_Handle *handle, int driver_list_lo
if (!driver_list_locked) {
erts_smp_tsd_set(driver_list_lock_status_key, NULL);
- erts_smp_mtx_unlock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rwunlock(&erts_driver_list_lock);
}
return res;
}
@@ -5097,7 +5102,7 @@ int remove_driver_entry(ErlDrvEntry *drv)
rec_lock = erts_smp_tsd_get(driver_list_lock_status_key);
if (rec_lock == NULL) {
- erts_smp_mtx_lock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rwlock(&erts_driver_list_lock);
}
dp = driver_list;
while (dp && dp->entry != drv)
@@ -5105,7 +5110,7 @@ int remove_driver_entry(ErlDrvEntry *drv)
if (dp) {
if (dp->handle) {
if (rec_lock == NULL) {
- erts_smp_mtx_unlock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rwunlock(&erts_driver_list_lock);
}
return -1;
}
@@ -5119,12 +5124,12 @@ int remove_driver_entry(ErlDrvEntry *drv)
}
erts_destroy_driver(dp);
if (rec_lock == NULL) {
- erts_smp_mtx_unlock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rwunlock(&erts_driver_list_lock);
}
return 1;
}
if (rec_lock == NULL) {
- erts_smp_mtx_unlock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rwunlock(&erts_driver_list_lock);
}
return 0;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-07 02:40:57 +0000